coreboot October 2011

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Re: [coreboot] Getting serial output from w83627hf?
by Alp Eren Köse 19 Oct '11

19 Oct '11

2011/10/19 Alp Eren Köse <alperenkose(a)buyutech.com.tr> > > Ok now so i need the CMC binary, but I have no idea what is a CMC binary, > how can i get it? I googled it, but didn't help me much.. > Will I need to extract it from the proprietary bios somehow?? > > Well that's the Chipset MicroCode right, so how can I retrieve it from the bios? That microcode has to be special to the "Intel System Controller Hub(SCH)" I suppose, but I couldn't find it in the internet either?

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Patch set updated for coreboot: feb6800 Cleaning i82801 LPC codes
by Kyösti Mälkki 19 Oct '11

19 Oct '11

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/302 -gerrit commit feb68001abe86c8a839e5feb768b9c6b38057958 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Wed Oct 19 13:31:39 2011 +0300 Cleaning i82801 LPC codes Replace ioapic initialisation with global setup_ioapic() or setup_ioapic_NOVECTORS(). Unify handling of ACPI BARs. Select IOAPIC as the southbridge has one and now requires that arch/x86/lib/ioapic.c is compiled in. Change-Id: I8ad80fdd0913995471269f33293c4a4b8cf1de83 Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/southbridge/intel/i82801ax/Kconfig | 1 + src/southbridge/intel/i82801ax/lpc.c | 39 ++++++++------ src/southbridge/intel/i82801bx/Kconfig | 1 + src/southbridge/intel/i82801bx/lpc.c | 39 ++++++++------ src/southbridge/intel/i82801cx/Kconfig | 1 + src/southbridge/intel/i82801cx/lpc.c | 40 +++++--------- src/southbridge/intel/i82801dx/i82801dx.h | 1 + src/southbridge/intel/i82801dx/lpc.c | 46 +++++++++-------- src/southbridge/intel/i82801ex/i82801ex.h | 9 +++ src/southbridge/intel/i82801ex/lpc.c | 81 +++++++++++++++++++---------- src/southbridge/intel/i82801gx/i82801gx.h | 1 + src/southbridge/intel/i82801gx/lpc.c | 66 +++++++++++++---------- 12 files changed, 187 insertions(+), 138 deletions(-) diff --git a/src/southbridge/intel/i82801ax/Kconfig b/src/southbridge/intel/i82801ax/Kconfig index 70734a7..71ae016 100644 --- a/src/southbridge/intel/i82801ax/Kconfig +++ b/src/southbridge/intel/i82801ax/Kconfig @@ -19,6 +19,7 @@ config SOUTHBRIDGE_INTEL_I82801AX bool + select IOAPIC select HAVE_HARD_RESET select USE_WATCHDOG_ON_BOOT diff --git a/src/southbridge/intel/i82801ax/lpc.c b/src/southbridge/intel/i82801ax/lpc.c index c9404ed..e1ab141 100644 --- a/src/southbridge/intel/i82801ax/lpc.c +++ b/src/southbridge/intel/i82801ax/lpc.c @@ -70,17 +70,30 @@ typedef struct southbridge_intel_i82801ax_config config_t; * Use the defined IRQ values above or set mainboard * specific IRQ values in your devicetree.cb. */ -static void i82801ax_enable_apic(struct device *dev) -{ - u32 reg32; - volatile u32 *ioapic_index = (volatile u32 *)IO_APIC_ADDR; - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); + +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801ax_enable_acpi(struct device *dev) +{ /* Set ACPI base address (I/O space). */ pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); /* Enable ACPI I/O range decode and ACPI power management. */ pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801ax_enable_ioapic(struct device *dev) +{ + u32 reg32; reg32 = pci_read_config32(dev, GEN_CNTL); reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ @@ -90,18 +103,7 @@ static void i82801ax_enable_apic(struct device *dev) pci_write_config32(dev, GEN_CNTL, reg32); printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", reg32); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - /* TODO: From i82801ca, needed/useful on other ICH? */ - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801ax_enable_serial_irqs(struct device *dev) @@ -219,8 +221,9 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801ax_enable_acpi(dev); /* IO APIC initialization. */ - i82801ax_enable_apic(dev); + i82801ax_enable_ioapic(dev); i82801ax_enable_serial_irqs(dev); diff --git a/src/southbridge/intel/i82801bx/Kconfig b/src/southbridge/intel/i82801bx/Kconfig index 00cb5bf..3d725d4 100644 --- a/src/southbridge/intel/i82801bx/Kconfig +++ b/src/southbridge/intel/i82801bx/Kconfig @@ -19,6 +19,7 @@ config SOUTHBRIDGE_INTEL_I82801BX bool + select IOAPIC select HAVE_HARD_RESET select USE_WATCHDOG_ON_BOOT diff --git a/src/southbridge/intel/i82801bx/lpc.c b/src/southbridge/intel/i82801bx/lpc.c index 0ff44e6..e2550d7 100644 --- a/src/southbridge/intel/i82801bx/lpc.c +++ b/src/southbridge/intel/i82801bx/lpc.c @@ -72,17 +72,29 @@ typedef struct southbridge_intel_i82801bx_config config_t; * Use the defined IRQ values above or set mainboard * specific IRQ values in your devicetree.cb. */ -static void i82801bx_enable_apic(struct device *dev) -{ - uint32_t reg32; - volatile uint32_t *ioapic_index = (volatile uint32_t *)IO_APIC_ADDR; - volatile uint32_t *ioapic_data = (volatile uint32_t *)(IO_APIC_ADDR + 0x10); +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801bx_enable_acpi(struct device *dev) +{ /* Set ACPI base address (I/O space). */ pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); /* Enable ACPI I/O range decode and ACPI power management. */ pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801bx_enable_ioapic(struct device *dev) +{ + u32 reg32; reg32 = pci_read_config32(dev, GEN_CNTL); reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ @@ -92,18 +104,7 @@ static void i82801bx_enable_apic(struct device *dev) pci_write_config32(dev, GEN_CNTL, reg32); printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", reg32); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - /* TODO: From i82801ca, needed/useful on other ICH? */ - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801bx_enable_serial_irqs(struct device *dev) @@ -237,8 +238,10 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801bx_enable_acpi(dev); + /* IO APIC initialization. */ - i82801bx_enable_apic(dev); + i82801bx_enable_ioapic(dev); i82801bx_enable_serial_irqs(dev); diff --git a/src/southbridge/intel/i82801cx/Kconfig b/src/southbridge/intel/i82801cx/Kconfig index a0c775d..7534cbb 100644 --- a/src/southbridge/intel/i82801cx/Kconfig +++ b/src/southbridge/intel/i82801cx/Kconfig @@ -1,2 +1,3 @@ config SOUTHBRIDGE_INTEL_I82801CX bool + select IOAPIC diff --git a/src/southbridge/intel/i82801cx/lpc.c b/src/southbridge/intel/i82801cx/lpc.c index a1ffb8f..5bce979 100644 --- a/src/southbridge/intel/i82801cx/lpc.c +++ b/src/southbridge/intel/i82801cx/lpc.c @@ -24,34 +24,24 @@ #define MAINBOARD_POWER_ON 1 -static void i82801cx_enable_ioapic( struct device *dev) +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801cx_enable_ioapic(struct device *dev) { - uint32_t dword; - volatile uint32_t* ioapic_index = (volatile uint32_t*)IO_APIC_ADDR; - volatile uint32_t* ioapic_data = (volatile uint32_t*)(IO_APIC_ADDR + 0x10); - - dword = pci_read_config32(dev, GEN_CNTL); - dword |= (3 << 7); /* enable ioapic & disable SMBus interrupts */ - dword |= (1 <<13); /* coprocessor error enable */ - dword |= (1 << 1); /* delay transaction enable */ - dword |= (1 << 2); /* DMA collection buf enable */ - pci_write_config32(dev, GEN_CNTL, dword); - printk(BIOS_DEBUG, "ioapic southbridge enabled %x\n",dword); - - // Must program the APIC's ID before using it - - *ioapic_index = 0; // Select APIC ID register - *ioapic_data = (2<<24); - - // Hang if the ID didn't take (chip not present?) - *ioapic_index = 0; - dword = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge apic id = %x\n", (dword>>24) & 0xF); - if(dword != (2<<24)) - die(""); - - *ioapic_index = 3; // Select Boot Configuration register - *ioapic_data = 1; // Use Processor System Bus to deliver interrupts + u32 reg32; + + reg32 = pci_read_config32(dev, GEN_CNTL); + reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 2); /* DMA collection buffer enable (DCB_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ + pci_write_config32(dev, GEN_CNTL, reg32); + printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); + + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } // This is how interrupts are received from the Super I/O chip diff --git a/src/southbridge/intel/i82801dx/i82801dx.h b/src/southbridge/intel/i82801dx/i82801dx.h index a38c793..2484eb1 100644 --- a/src/southbridge/intel/i82801dx/i82801dx.h +++ b/src/southbridge/intel/i82801dx/i82801dx.h @@ -86,6 +86,7 @@ extern void i82801dx_enable(device_t dev); #define PMBASE_ADDR 0x0400 #define DEFAULT_PMBASE PMBASE_ADDR #define ACPI_CNTL 0x44 +#define ACPI_EN (1 << 4) #define BIOS_CNTL 0x4E #define GPIO_BASE 0x58 #define GPIO_CNTL 0x5C diff --git a/src/southbridge/intel/i82801dx/lpc.c b/src/southbridge/intel/i82801dx/lpc.c index 768e700..eb05881 100644 --- a/src/southbridge/intel/i82801dx/lpc.c +++ b/src/southbridge/intel/i82801dx/lpc.c @@ -36,37 +36,38 @@ typedef struct southbridge_intel_i82801dx_config config_t; -static void i82801dx_enable_ioapic(struct device *dev) +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801dx_enable_acpi(struct device *dev) { - u32 reg32; - volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR); - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); - /* Set ACPI base address (I/O space). */ pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); - /* Enable ACPI I/O and power management. */ - pci_write_config8(dev, ACPI_CNTL, 0x10); + /* Enable ACPI I/O range decode and ACPI power management. */ + pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801dx_enable_ioapic(struct device *dev) +{ + u32 reg32; reg32 = pci_read_config32(dev, GEN_CNTL); - reg32 |= (3 << 7); /* Enable IOAPIC */ - reg32 |= (1 << 13); /* Coprocessor error enable */ - reg32 |= (1 << 1); /* Delayed transaction enable */ - reg32 |= (1 << 2); /* DMA collection buffer enable */ + reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 2); /* DMA collection buffer enable (DCB_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ pci_write_config32(dev, GEN_CNTL, reg32); printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", reg32); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801dx_enable_serial_irqs(struct device *dev) @@ -267,6 +268,7 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801dx_enable_acpi(dev); /* IO APIC initialization. */ i82801dx_enable_ioapic(dev); diff --git a/src/southbridge/intel/i82801ex/i82801ex.h b/src/southbridge/intel/i82801ex/i82801ex.h index 67fecdd..22a29f3 100644 --- a/src/southbridge/intel/i82801ex/i82801ex.h +++ b/src/southbridge/intel/i82801ex/i82801ex.h @@ -12,4 +12,13 @@ extern void i82801ex_enable(device_t dev); #define RTC_CONF 0xd8 #define GEN_PMCON_3 0xa4 + +#define PMBASE 0x40 +#define ACPI_CNTL 0x44 +#define ACPI_EN (1 << 4) +#define GPIO_BASE 0x58 +#define GPIO_CNTL 0x5C +#define GPIO_EN (1 << 4) + + #endif /* I82801EX_H */ diff --git a/src/southbridge/intel/i82801ex/lpc.c b/src/southbridge/intel/i82801ex/lpc.c index 998360c..659728a 100644 --- a/src/southbridge/intel/i82801ex/lpc.c +++ b/src/southbridge/intel/i82801ex/lpc.c @@ -12,8 +12,6 @@ #include <arch/ioapic.h> #include "i82801ex.h" -#define ACPI_BAR 0x40 -#define GPIO_BAR 0x58 #define NMI_OFF 0 #define MAINBOARD_POWER_OFF 0 @@ -23,6 +21,53 @@ #define CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON #endif +typedef struct southbridge_intel_i82801ex_config config_t; + +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801ex_enable_acpi(struct device *dev) +{ + u8 gpio_cntl; +#if 0 + /* many i82801's set pmbase here */ + /* Set ACPI base address (I/O space). */ + pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); +#endif + + /* Enable ACPI I/O range decode and ACPI power management. */ + pci_write_config8(dev, ACPI_CNTL, ACPI_EN); + + /* Enable the GPIO bar */ + gpio_cntl = pci_read_config8(dev, GPIO_CNTL); + gpio_cntl |= GPIO_EN; + pci_write_config8(dev, GPIO_CNTL, gpio_cntl); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC configuration registers + */ +static void i82801ex_enable_ioapic(struct device *dev) +{ + u32 reg32; + + reg32 = pci_read_config32(dev, GEN_CNTL); + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ + pci_write_config32(dev, GEN_CNTL, reg32); + printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); + + reg32 = pci_read_config32(dev, GEN_STS); + reg32 |= (1<<1); + pci_write_config32(dev, GEN_STS, reg32); + + setup_ioapic(IO_APIC_ADDR, 0); /* Don't rename IO APIC ID. */ +} + #define SERIRQ_CNTL 0x64 static void i82801ex_enable_serial_irqs(device_t dev) { @@ -45,7 +90,6 @@ static void i82801ex_enable_lpc(device_t dev) pci_write_config8(dev, LPC_EN, 0x0d); } -typedef struct southbridge_intel_i82801ex_config config_t; static void set_i82801ex_gpio_use_sel( device_t dev, struct resource *res, config_t *config) @@ -193,7 +237,7 @@ static void i82801ex_gpio_init(device_t dev) /* Get the chip configuration */ config = dev->chip_info; /* Find the GPIO bar */ - res = find_resource(dev, GPIO_BAR); + res = find_resource(dev, GPIO_BASE); if (!res) { return; } @@ -239,18 +283,10 @@ static void enable_hpet(struct device *dev) static void lpc_init(struct device *dev) { uint8_t byte; - uint32_t value; int pwr_on=CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL; - /* IO APIC initialization */ - value = pci_read_config32(dev, 0xd0); - value |= (1 << 8)|(1<<7)|(1<<1); - pci_write_config32(dev, 0xd0, value); - value = pci_read_config32(dev, 0xd4); - value |= (1<<1); - pci_write_config32(dev, 0xd4, value); - setup_ioapic(IO_APIC_ADDR, 0); // Don't rename IO APIC ID. - + i82801ex_enable_ioapic(dev); + i82801ex_enable_serial_irqs(dev); i82801ex_pci_dma_cfg(dev); @@ -295,10 +331,10 @@ static void i82801ex_lpc_read_resources(device_t dev) pci_dev_read_resources(dev); /* Add the ACPI BAR */ - res = pci_get_resource(dev, ACPI_BAR); + res = pci_get_resource(dev, PMBASE); /* Add the GPIO BAR */ - res = pci_get_resource(dev, GPIO_BAR); + res = pci_get_resource(dev, GPIO_BASE); /* Add an extra subtractive resource for both memory and I/O. */ res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); @@ -321,20 +357,11 @@ static void i82801ex_lpc_read_resources(device_t dev) static void i82801ex_lpc_enable_resources(device_t dev) { - uint8_t acpi_cntl, gpio_cntl; - /* Enable the normal pci resources */ pci_dev_enable_resources(dev); - /* Enable the ACPI bar */ - acpi_cntl = pci_read_config8(dev, 0x44); - acpi_cntl |= (1 << 4); - pci_write_config8(dev, 0x44, acpi_cntl); - - /* Enable the GPIO bar */ - gpio_cntl = pci_read_config8(dev, 0x5c); - gpio_cntl |= (1 << 4); - pci_write_config8(dev, 0x5c, gpio_cntl); + /* Enable ACPI and GPIO BARs */ + i82801ex_enable_acpi(dev); } static struct pci_operations lops_pci = { diff --git a/src/southbridge/intel/i82801gx/i82801gx.h b/src/southbridge/intel/i82801gx/i82801gx.h index 2ceb215..55fd883 100644 --- a/src/southbridge/intel/i82801gx/i82801gx.h +++ b/src/southbridge/intel/i82801gx/i82801gx.h @@ -82,6 +82,7 @@ void enable_usbdebug(unsigned int port); #define PMBASE 0x40 #define ACPI_CNTL 0x44 +#define ACPI_EN (1 << 7) /* NOTE: was 1<<4 until ICH7 */ #define BIOS_CNTL 0xDC #define GPIO_BASE 0x48 /* LPC GPIO Base Address Register */ #define GPIO_CNTL 0x4C /* LPC GPIO Control Register */ diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c index ab3c915..c6c1b93 100644 --- a/src/southbridge/intel/i82801gx/lpc.c +++ b/src/southbridge/intel/i82801gx/lpc.c @@ -39,37 +39,45 @@ typedef struct southbridge_intel_i82801gx_config config_t; -static void i82801gx_enable_apic(struct device *dev) +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801gx_enable_acpi(struct device *dev) { - int i; - u32 reg32; - volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR); - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); +#if 0 + /* many i82801's set pmbase here */ + /* Set ACPI base address (I/O space). */ + pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); +#endif - /* Enable ACPI I/O and power management. - * Set SCI IRQ to IRQ9 + /* Enable ACPI I/O range decode and ACPI power management. + * Select SCI IRQ as IRQ9. */ - pci_write_config8(dev, ACPI_CNTL, 0x80); - - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", (reg32 >> 24) & 0x0f); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - printk(BIOS_SPEW, "Dumping IOAPIC registers\n"); - for (i=0; i<3; i++) { - *ioapic_index = i; - printk(BIOS_SPEW, " reg 0x%04x:", i); - reg32 = *ioapic_data; - printk(BIOS_SPEW, " 0x%08x\n", reg32); - } + pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC configuration registers + */ +static void i82801gx_enable_ioapic(struct device *dev) +{ + u32 reg32; + + reg32 = pci_read_config32(dev, GEN_CNTL); +#if 0 + reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 2); /* DMA collection buffer enable (DCB_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ + pci_write_config32(dev, GEN_CNTL, reg32); +#endif + printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); + + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801gx_enable_serial_irqs(struct device *dev) @@ -417,8 +425,10 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801gx_enable_acpi(dev); + /* IO APIC initialization. */ - i82801gx_enable_apic(dev); + i82801gx_enable_ioapic(dev); i82801gx_enable_serial_irqs(dev);

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Patch set updated for coreboot: 074fcd7 Add support for E7505 northbridge.
by Kyösti Mälkki 19 Oct '11

19 Oct '11

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/295 -gerrit commit 074fcd7e32753bb1bc3626a515ab0a546d876697 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Tue Oct 18 17:03:12 2011 +0300 Add support for E7505 northbridge. Adapted from northbridge/intel/e7501 with only minor changes. This commit provides minimal patch from e7501 and I prefer any cosmetic clean-up to be done after initial merge. Due the incomplete register specifications, it is safer to have e7505 as a separate directory in case I improve it to support wider range of memory configurations. I have no e7501 to test with. Change-Id: Iba3bf9d69ff5e9d9ef3a6ebf8259f048c55d637d Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/northbridge/intel/Kconfig | 1 + src/northbridge/intel/Makefile.inc | 1 + src/northbridge/intel/e7505/Kconfig | 4 + src/northbridge/intel/e7505/Makefile.inc | 1 + src/northbridge/intel/e7505/chip.h | 5 + src/northbridge/intel/e7505/debug.c | 275 ++++ src/northbridge/intel/e7505/e7501.h | 79 ++ src/northbridge/intel/e7505/northbridge.c | 142 ++ src/northbridge/intel/e7505/raminit.c | 2067 +++++++++++++++++++++++++++++ src/northbridge/intel/e7505/raminit.h | 22 + src/northbridge/intel/e7505/reset_test.c | 18 + 11 files changed, 2615 insertions(+), 0 deletions(-) diff --git a/src/northbridge/intel/Kconfig b/src/northbridge/intel/Kconfig index 409eb5e..1809d11 100644 --- a/src/northbridge/intel/Kconfig +++ b/src/northbridge/intel/Kconfig @@ -1,4 +1,5 @@ source src/northbridge/intel/e7501/Kconfig +source src/northbridge/intel/e7505/Kconfig source src/northbridge/intel/e7520/Kconfig source src/northbridge/intel/e7525/Kconfig source src/northbridge/intel/i3100/Kconfig diff --git a/src/northbridge/intel/Makefile.inc b/src/northbridge/intel/Makefile.inc index 266f6f8..0d116d0 100644 --- a/src/northbridge/intel/Makefile.inc +++ b/src/northbridge/intel/Makefile.inc @@ -1,4 +1,5 @@ subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7501) += e7501 +subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7505) += e7505 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7520) += e7520 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_E7525) += e7525 subdirs-$(CONFIG_NORTHBRIDGE_INTEL_I3100) += i3100 diff --git a/src/northbridge/intel/e7505/Kconfig b/src/northbridge/intel/e7505/Kconfig new file mode 100644 index 0000000..fa5f7d6 --- /dev/null +++ b/src/northbridge/intel/e7505/Kconfig @@ -0,0 +1,4 @@ +config NORTHBRIDGE_INTEL_E7505 + bool + select HAVE_HIGH_TABLES + diff --git a/src/northbridge/intel/e7505/Makefile.inc b/src/northbridge/intel/e7505/Makefile.inc new file mode 100644 index 0000000..23eada5 --- /dev/null +++ b/src/northbridge/intel/e7505/Makefile.inc @@ -0,0 +1 @@ +ramstage-y += northbridge.c diff --git a/src/northbridge/intel/e7505/chip.h b/src/northbridge/intel/e7505/chip.h new file mode 100644 index 0000000..7f2f5c2 --- /dev/null +++ b/src/northbridge/intel/e7505/chip.h @@ -0,0 +1,5 @@ +struct northbridge_intel_e7505_config +{ +}; + +extern struct chip_operations northbridge_intel_e7505_ops; diff --git a/src/northbridge/intel/e7505/debug.c b/src/northbridge/intel/e7505/debug.c new file mode 100644 index 0000000..f19de0c --- /dev/null +++ b/src/northbridge/intel/e7505/debug.c @@ -0,0 +1,275 @@ +/* + * generic debug code, used by mainboard specific romstage.c + * + */ +#if 1 +static void print_debug_pci_dev(unsigned dev) +{ + print_debug("PCI: "); + print_debug_hex8((dev >> 16) & 0xff); + print_debug_char(':'); + print_debug_hex8((dev >> 11) & 0x1f); + print_debug_char('.'); + print_debug_hex8((dev >> 8) & 7); +} + +static inline void print_pci_devices(void) +{ + device_t dev; + for(dev = PCI_DEV(0, 0, 0); + dev <= PCI_DEV(0xff, 0x1f, 0x7); + dev += PCI_DEV(0,0,1)) { + uint32_t id; + id = pci_read_config32(dev, PCI_VENDOR_ID); + if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0x0000)) { + continue; + } + print_debug_pci_dev(dev); + print_debug("\n"); + } +} + +static void dump_pci_device(unsigned dev) +{ + int i; + print_debug_pci_dev(dev); + + for(i = 0; i < 256; i++) { + unsigned char val; + if ((i & 0x0f) == 0) { +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "\n%02x:",i); +#else + print_debug("\n"); + print_debug_hex8(i); + print_debug_char(':'); +#endif + } + val = pci_read_config8(dev, i); +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, " %02x", val); +#else + print_debug_char(' '); + print_debug_hex8(val); +#endif + } + print_debug("\n"); +} + +static inline void dump_pci_devices(void) +{ + device_t dev; + for(dev = PCI_DEV(0, 0, 0); + dev <= PCI_DEV(0xff, 0x1f, 0x7); + dev += PCI_DEV(0,0,1)) { + uint32_t id; + id = pci_read_config32(dev, PCI_VENDOR_ID); + if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0x0000)) { + continue; + } + dump_pci_device(dev); + } +} + +static inline void dump_pci_devices_on_bus(unsigned busn) +{ + device_t dev; + for(dev = PCI_DEV(busn, 0, 0); + dev <= PCI_DEV(busn, 0x1f, 0x7); + dev += PCI_DEV(0,0,1)) { + uint32_t id; + id = pci_read_config32(dev, PCI_VENDOR_ID); + if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0xffff) || + (((id >> 16) & 0xffff) == 0x0000)) { + continue; + } + dump_pci_device(dev); + } +} + +static inline void dump_spd_registers(const struct mem_controller *ctrl) +{ + int i; + print_debug("\n"); + for(i = 0; i < 4; i++) { + unsigned device; + device = ctrl->channel0[i]; + if (device) { + int j; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "dimm: %02x.0: %02x", i, device); +#else + print_debug("dimm: "); + print_debug_hex8(i); + print_debug(".0: "); + print_debug_hex8(device); +#endif + for(j = 0; j < 128; j++) { + int status; + unsigned char byte; + if ((j & 0xf) == 0) { +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "\n%02x: ", j); +#else + print_debug("\n"); + print_debug_hex8(j); + print_debug(": "); +#endif + } + status = smbus_read_byte(device, j); + if (status < 0) { + break; + } + byte = status & 0xff; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "%02x ", byte); +#else + print_debug_hex8(byte); + print_debug_char(' '); +#endif + } + print_debug("\n"); + } + device = ctrl->channel1[i]; + if (device) { + int j; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "dimm: %02x.1: %02x", i, device); +#else + print_debug("dimm: "); + print_debug_hex8(i); + print_debug(".1: "); + print_debug_hex8(device); +#endif + for(j = 0; j < 128; j++) { + int status; + unsigned char byte; + if ((j & 0xf) == 0) { +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "\n%02x: ", j); +#else + print_debug("\n"); + print_debug_hex8(j); + print_debug(": "); +#endif + } + status = smbus_read_byte(device, j); + if (status < 0) { + break; + } + byte = status & 0xff; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "%02x ", byte); +#else + print_debug_hex8(byte); + print_debug_char(' '); +#endif + } + print_debug("\n"); + } + } +} +static inline void dump_smbus_registers(void) +{ + unsigned device; + print_debug("\n"); + for(device = 1; device < 0x80; device++) { + int j; + if( smbus_read_byte(device, 0) < 0 ) continue; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "smbus: %02x", device); +#else + print_debug("smbus: "); + print_debug_hex8(device); +#endif + for(j = 0; j < 256; j++) { + int status; + unsigned char byte; + status = smbus_read_byte(device, j); + if (status < 0) { + break; + } + if ((j & 0xf) == 0) { +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "\n%02x: ",j); +#else + print_debug("\n"); + print_debug_hex8(j); + print_debug(": "); +#endif + } + byte = status & 0xff; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "%02x ", byte); +#else + print_debug_hex8(byte); + print_debug_char(' '); +#endif + } + print_debug("\n"); + } +} + +static inline void dump_io_resources(unsigned port) +{ + + int i; +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "%04x:\n", port); +#else + print_debug_hex16(port); + print_debug(":\n"); +#endif + for(i=0;i<256;i++) { + uint8_t val; + if ((i & 0x0f) == 0) { +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "%02x:", i); +#else + print_debug_hex8(i); + print_debug_char(':'); +#endif + } + val = inb(port); +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, " %02x",val); +#else + print_debug_char(' '); + print_debug_hex8(val); +#endif + if ((i & 0x0f) == 0x0f) { + print_debug("\n"); + } + port++; + } +} + +static inline void dump_mem(unsigned start, unsigned end) +{ + unsigned i; + print_debug("dump_mem:"); + for(i=start;i<end;i++) { + if((i & 0xf)==0) { +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, "\n%08x:", i); +#else + print_debug("\n"); + print_debug_hex32(i); + print_debug(":"); +#endif + } +#if CONFIG_CACHE_AS_RAM + printk(BIOS_DEBUG, " %02x", (unsigned char)*((unsigned char *)i)); +#else + print_debug(" "); + print_debug_hex8((unsigned char)*((unsigned char *)i)); +#endif + } + print_debug("\n"); + } +#endif diff --git a/src/northbridge/intel/e7505/e7501.h b/src/northbridge/intel/e7505/e7501.h new file mode 100644 index 0000000..32a26da --- /dev/null +++ b/src/northbridge/intel/e7505/e7501.h @@ -0,0 +1,79 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2005 Digital Design Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * e7501.h: PCI configuration space for the Intel E7501 memory controller + */ + +/************ D0:F0 ************/ +// Register offsets +#define MAYBE_SMRBASE 0x14 /* System Memory RCOMP Base Address Register, 32 bit? (if similar to 855PM) */ +#define MCHCFGNS 0x52 /* MCH (scrubber) configuration register, 16 bit */ +#define DRB_ROW_0 0x60 /* DRAM Row Boundary register, 8 bit */ +#define DRB_ROW_1 0x61 +#define DRB_ROW_2 0x62 +#define DRB_ROW_3 0x63 +#define DRB_ROW_4 0x64 +#define DRB_ROW_5 0x65 +#define DRB_ROW_6 0x66 +#define DRB_ROW_7 0x67 + +#define DRA 0x70 /* DRAM Row Attributes registers, 4 x 8 bit */ +#define DRT 0x78 /* DRAM Timing register, 32 bit */ +#define DRC 0x7C /* DRAM Controller Mode register, 32 bit */ +#define MAYBE_DRDCTL 0x80 /* DRAM Read Timing Control register, 16 bit? (if similar to 855PM) */ +#define CKDIS 0x8C /* Clock disable register, 8 bit */ +#define TOLM 0xC4 /* Top of Low Memory register, 16 bit */ +#define REMAPBASE 0xC6 /* Remap Base Address register, 16 bit */ +#define REMAPLIMIT 0xC8 /* Remap Limit Address register, 16 bit */ +#define SKPD 0xDE /* Scratchpad register, 16 bit */ +#define MAYBE_MCHTST 0xF4 /* MCH Test Register, 32 bit? (if similar to 855PM) */ + +// CAS# Latency bits in the DRAM Timing (DRT) register +#define DRT_CAS_2_5 (0<<4) +#define DRT_CAS_2_0 (1<<4) +#define DRT_CAS_MASK (3<<4) + +// Mode Select (SMS) bits in the DRAM Controller Mode (DRC) register +#define RAM_COMMAND_NOP (1<<4) +#define RAM_COMMAND_PRECHARGE (2<<4) +#define RAM_COMMAND_MRS (3<<4) +#define RAM_COMMAND_EMRS (4<<4) +#define RAM_COMMAND_CBR (6<<4) +#define RAM_COMMAND_NORMAL (7<<4) + + +// RCOMP Memory Map offsets +// Conjecture based on apparent similarity between E7501 and 855PM +// Intel doc. 252613-003 describes these for 855PM + +#define MAYBE_SMRCTL 0x20 /* System Memory RCOMP Control Register? */ +#define MAYBE_DQCMDSTR 0x30 /* Strength control for DQ and CMD signal groups? */ +#define MAYBE_CKESTR 0x31 /* Strength control for CKE signal group? */ +#define MAYBE_CSBSTR 0x32 /* Strength control for CS# signal group? */ +#define MAYBE_CKSTR 0x33 /* Strength control for CK signal group? */ +#define MAYBE_RCVENSTR 0x34 /* Strength control for RCVEnOut# signal group? */ + +/************ D0:F1 ************/ +// Register offsets +#define FERR_GLOBAL 0x40 /* First global error register, 32 bits */ +#define NERR_GLOBAL 0x44 /* Next global error register, 32 bits */ +#define DRAM_FERR 0x80 /* DRAM first error register, 8 bits */ +#define DRAM_NERR 0x82 /* DRAM next error register, 8 bits */ diff --git a/src/northbridge/intel/e7505/northbridge.c b/src/northbridge/intel/e7505/northbridge.c new file mode 100644 index 0000000..b9a0a05 --- /dev/null +++ b/src/northbridge/intel/e7505/northbridge.c @@ -0,0 +1,142 @@ +#include <console/console.h> +#include <arch/io.h> +#include <stdint.h> +#include <device/device.h> +#include <device/pci.h> +#include <cpu/cpu.h> +#include <stdlib.h> +#include <string.h> +#include <bitops.h> +#include "chip.h" + +#if CONFIG_WRITE_HIGH_TABLES==1 +#include <cbmem.h> +#endif + +static void pci_domain_set_resources(device_t dev) +{ + device_t mc_dev; + uint32_t pci_tolm; + + pci_tolm = find_pci_tolm(dev->link_list); + mc_dev = dev->link_list->children; + if (mc_dev) { + /* Figure out which areas are/should be occupied by RAM. + * This is all computed in kilobytes and converted to/from + * the memory controller right at the edges. + * Having different variables in different units is + * too confusing to get right. Kilobytes are good up to + * 4 Terabytes of RAM... + */ + uint16_t tolm_r, remapbase_r, remaplimit_r; + unsigned long tomk, tolmk; + unsigned long remapbasek, remaplimitk; + int idx; + + /* Get the value of the highest DRB. This tells the end of + * the physical memory. The units are ticks of 64MB + * i.e. 1 means 64MB. + */ + tomk = ((unsigned long)pci_read_config8(mc_dev, 0x67)) << 16; + /* Compute the top of Low memory */ + tolmk = pci_tolm >> 10; + if (tolmk >= tomk) { + /* The PCI hole does not overlap memory + * we won't use the remap window. + */ + tolmk = tomk; + remapbasek = 0x3ff << 16; + remaplimitk = 0 << 16; + } + else { + /* The PCI memory hole overlaps memory + * setup the remap window. + */ + /* Find the bottom of the remap window + * is it above 4G? + */ + remapbasek = 4*1024*1024; + if (tomk > remapbasek) { + remapbasek = tomk; + } + /* Find the limit of the remap window */ + remaplimitk = (remapbasek + (4*1024*1024 - tolmk) - (1 << 16)); + } + /* Write the ram configuration registers, + * preserving the reserved bits. + */ + tolm_r = pci_read_config16(mc_dev, 0xc4); + tolm_r = ((tolmk >> 17) << 11) | (tolm_r & 0x7ff); + pci_write_config16(mc_dev, 0xc4, tolm_r); + + remapbase_r = pci_read_config16(mc_dev, 0xc6); + remapbase_r = (remapbasek >> 16) | (remapbase_r & 0xfc00); + pci_write_config16(mc_dev, 0xc6, remapbase_r); + + remaplimit_r = pci_read_config16(mc_dev, 0xc8); + remaplimit_r = (remaplimitk >> 16) | (remaplimit_r & 0xfc00); + pci_write_config16(mc_dev, 0xc8, remaplimit_r); + + /* Report the memory regions */ + idx = 10; + ram_resource(dev, idx++, 0, 640); + ram_resource(dev, idx++, 768, tolmk - 768); + if (tomk > 4*1024*1024) { + ram_resource(dev, idx++, 4096*1024, tomk - 4*1024*1024); + } + if (remaplimitk >= remapbasek) { + ram_resource(dev, idx++, remapbasek, + (remaplimitk + 64*1024) - remapbasek); + } + +#if CONFIG_WRITE_HIGH_TABLES==1 + /* Leave some space for ACPI, PIRQ and MP tables */ + high_tables_base = (tolmk * 1024) - HIGH_MEMORY_SIZE; + high_tables_size = HIGH_MEMORY_SIZE; +#endif + } + assign_resources(dev->link_list); +} + +static struct device_operations pci_domain_ops = { + .read_resources = pci_domain_read_resources, + .set_resources = pci_domain_set_resources, + .enable_resources = NULL, + .init = NULL, + .scan_bus = pci_domain_scan_bus, + .ops_pci_bus = &pci_cf8_conf1, +}; + +static void cpu_bus_init(device_t dev) +{ + initialize_cpus(dev->link_list); +} + +static void cpu_bus_noop(device_t dev) +{ +} + +static struct device_operations cpu_bus_ops = { + .read_resources = cpu_bus_noop, + .set_resources = cpu_bus_noop, + .enable_resources = cpu_bus_noop, + .init = cpu_bus_init, + .scan_bus = 0, +}; + +static void enable_dev(struct device *dev) +{ + /* Set the operations if it is a special bus type */ + if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) { + dev->ops = &pci_domain_ops; + } + else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) { + dev->ops = &cpu_bus_ops; + } +} + +struct chip_operations northbridge_intel_e7505_ops = { + CHIP_NAME("Intel E7505 Northbridge") + .enable_dev = enable_dev, +}; + diff --git a/src/northbridge/intel/e7505/raminit.c b/src/northbridge/intel/e7505/raminit.c new file mode 100644 index 0000000..fb5c9ed --- /dev/null +++ b/src/northbridge/intel/e7505/raminit.c @@ -0,0 +1,2067 @@ +/* This was originally for the e7500, modified for e7501 + * The primary differences are that 7501 apparently can + * support single channel RAM (i haven't tested), + * CAS1.5 is no longer supported, The ECC scrubber + * now supports a mode to zero RAM and init ECC in one step + * and the undocumented registers at 0x80 require new + * (undocumented) values determined by guesswork and + * comparison w/ OEM BIOS values. + * Steven James 02/06/2003 + */ + +/* converted to C 6/2004 yhlu */ + +#include <assert.h> +#include <spd.h> +#include <sdram_mode.h> +#include <stdlib.h> +#include "e7501.h" + +/*----------------------------------------------------------------------------- +Definitions: +-----------------------------------------------------------------------------*/ + +// Uncomment this to enable run-time checking of DIMM parameters +// for dual-channel operation +// Unfortunately the code seems to chew up several K of space. +//#define VALIDATE_DIMM_COMPATIBILITY + +#if CONFIG_DEBUG_RAM_SETUP +#define RAM_DEBUG_MESSAGE(x) print_debug(x) +#define RAM_DEBUG_HEX32(x) print_debug_hex32(x) +#define RAM_DEBUG_HEX8(x) print_debug_hex8(x) +#define DUMPNORTH() dump_pci_device(PCI_DEV(0, 0, 0)) +#else +#define RAM_DEBUG_MESSAGE(x) +#define RAM_DEBUG_HEX32(x) +#define RAM_DEBUG_HEX8(x) +#define DUMPNORTH() +#endif + +#define E7501_SDRAM_MODE (SDRAM_BURST_INTERLEAVED | SDRAM_BURST_4) +#define SPD_ERROR "Error reading SPD info\n" + +// NOTE: This used to be 0x100000. +// That doesn't work on systems where A20M# is asserted, because +// attempts to access 0x1000NN end up accessing 0x0000NN. +#define RCOMP_MMIO 0x200000 + +struct dimm_size { + unsigned long side1; + unsigned long side2; +}; + +static const uint32_t refresh_frequency[] = { + /* Relative frequency (array value) of each E7501 Refresh Mode Select + * (RMS) value (array index) + * 0 == least frequent refresh (longest interval between refreshes) + * [0] disabled -> 0 + * [1] 15.6 usec -> 2 + * [2] 7.8 usec -> 3 + * [3] 64 usec -> 1 + * [4] reserved -> 0 + * [5] reserved -> 0 + * [6] reserved -> 0 + * [7] 64 clocks -> 4 + */ + 0, 2, 3, 1, 0, 0, 0, 4 +}; + +static const uint32_t refresh_rate_map[] = { + /* Map the JEDEC spd refresh rates (array index) to E7501 Refresh Mode + * Select values (array value) + * These are all the rates defined by JESD21-C Appendix D, Rev. 1.0 + * The E7501 supports only 15.6 us (1), 7.8 us (2), 64 us (3), and + * 64 clock (481 ns) (7) refresh. + * [0] == 15.625 us -> 15.6 us + * [1] == 3.9 us -> 481 ns + * [2] == 7.8 us -> 7.8 us + * [3] == 31.3 us -> 15.6 us + * [4] == 62.5 us -> 15.6 us + * [5] == 125 us -> 64 us + */ + 1, 7, 2, 1, 1, 3 +}; + +#define MAX_SPD_REFRESH_RATE ((sizeof(refresh_rate_map) / sizeof(uint32_t)) - 1) + +// SPD parameters that must match for dual-channel operation +static const uint8_t dual_channel_parameters[] = { + SPD_MEMORY_TYPE, + SPD_MODULE_VOLTAGE, + SPD_NUM_COLUMNS, + SPD_NUM_ROWS, + SPD_NUM_DIMM_BANKS, + SPD_PRIMARY_SDRAM_WIDTH, + SPD_NUM_BANKS_PER_SDRAM +}; + + /* + * Table: constant_register_values + */ +static const long constant_register_values[] = { + /* SVID - Subsystem Vendor Identification Register + * 0x2c - 0x2d + * [15:00] Subsytem Vendor ID (Indicates system board vendor) + */ + /* SID - Subsystem Identification Register + * 0x2e - 0x2f + * [15:00] Subsystem ID + */ + // Not everyone wants to be Super Micro Computer, Inc. + // The mainboard should set this if desired. + // 0x2c, 0, (0x15d9 << 0) | (0x3580 << 16), + + /* Undocumented + * (DRAM Read Timing Control, if similar to 855PM?) + * 0x80 - 0x81 + * This register has something to do with CAS latencies, + * possibily this is the real chipset control. + * At 0x00 CAS latency 1.5 works. + * At 0x06 CAS latency 2.5 works. + * At 0x01 CAS latency 2.0 works. + */ + /* This is still undocumented in e7501, but with different values + * CAS 2.0 values taken from Intel BIOS settings, others are a guess + * and may be terribly wrong. Old values preserved as comments until I + * figure this out for sure. + * e7501 docs claim that CAS1.5 is unsupported, so it may or may not + * work at all. + * Steven James 02/06/2003 + */ + /* NOTE: values now configured in configure_e7501_cas_latency() based + * on SPD info and total number of DIMMs (per Intel) + */ + + /* FDHC - Fixed DRAM Hole Control + * 0x58 + * [7:7] Hole_Enable + * 0 == No memory Hole + * 1 == Memory Hole from 15MB to 16MB + * [6:0] Reserved + * + * PAM - Programmable Attribute Map + * 0x59 [1:0] Reserved + * 0x59 [5:4] 0xF0000 - 0xFFFFF + * 0x5A [1:0] 0xC0000 - 0xC3FFF + * 0x5A [5:4] 0xC4000 - 0xC7FFF + * 0x5B [1:0] 0xC8000 - 0xCBFFF + * 0x5B [5:4] 0xCC000 - 0xCFFFF + * 0x5C [1:0] 0xD0000 - 0xD3FFF + * 0x5C [5:4] 0xD4000 - 0xD7FFF + * 0x5D [1:0] 0xD8000 - 0xDBFFF + * 0x5D [5:4] 0xDC000 - 0xDFFFF + * 0x5E [1:0] 0xE0000 - 0xE3FFF + * 0x5E [5:4] 0xE4000 - 0xE7FFF + * 0x5F [1:0] 0xE8000 - 0xEBFFF + * 0x5F [5:4] 0xEC000 - 0xEFFFF + * 00 == DRAM Disabled (All Access go to memory mapped I/O space) + * 01 == Read Only (Reads to DRAM, Writes to memory mapped I/O space) + * 10 == Write Only (Writes to DRAM, Reads to memory mapped I/O space) + * 11 == Normal (All Access go to DRAM) + */ + + // Map all legacy ranges to DRAM + 0x58, 0xcccccf7f, (0x00 << 0) | (0x30 << 8) | (0x33 << 16) | (0x33 << 24), + 0x5C, 0xcccccccc, (0x33 << 0) | (0x33 << 8) | (0x33 << 16) | (0x33 << 24), + + /* DRB - DRAM Row Boundary Registers + * 0x60 - 0x6F + * An array of 8 byte registers, which hold the ending + * memory address assigned to each pair of DIMMS, in 64MB + * granularity. + */ + // Conservatively say each row has 64MB of ram, we will fix this up later + // NOTE: These defaults allow us to prime all of the DIMMs on the board + // without jumping through 36-bit adddressing hoops, even if the + // total memory is > 4 GB. Changing these values may break do_ram_command()! + 0x60, 0x00000000, (0x01 << 0) | (0x02 << 8) | (0x03 << 16) | (0x04 << 24), +// 0x64, 0x00000000, (0x05 << 0) | (0x06 << 8) | (0x07 << 16) | (0x08 << 24), + 0x64, 0x00000000, (0x04 << 0) | (0x04 << 8) | (0x04 << 16) | (0x04 << 24), + + /* DRA - DRAM Row Attribute Register + * 0x70 Row 0,1 + * 0x71 Row 2,3 + * 0x72 Row 4,5 + * 0x73 Row 6,7 + * [7:7] Device width for Odd numbered rows + * 0 == 8 bits wide x8 + * 1 == 4 bits wide x4 + * [6:4] Row Attributes for Odd numbered rows + * 010 == 8KB (for dual-channel) + * 011 == 16KB (for dual-channel) + * 100 == 32KB (for dual-channel) + * 101 == 64KB (for dual-channel) + * Others == Reserved + * [3:3] Device width for Even numbered rows + * 0 == 8 bits wide x8 + * 1 == 4 bits wide x4 + * [2:0] Row Attributes for Even numbered rows + * 010 == 8KB (for dual-channel) + * 011 == 16KB (for dual-channel) + * 100 == 32KB (for dual-channel) + * 101 == 64KB (This page size appears broken) + * Others == Reserved + */ + // NOTE: overridden by configure_e7501_row_attributes(), later + 0x70, 0x00000000, 0, + + /* DRT - DRAM Timing Register + * 0x78 + * [31:30] Reserved + * [29:29] Back to Back Write-Read Turn Around + * 0 == 3 clocks between WR-RD commands + * 1 == 2 clocks between WR-RD commands + * [28:28] Back to Back Read-Write Turn Around + * 0 == 5 clocks between RD-WR commands + * 1 == 4 clocks between RD-WR commands + * [27:27] Back to Back Read Turn Around + * 0 == 4 clocks between RD commands + * 1 == 3 clocks between RD commands + * [26:24] Read Delay (tRD) + * 000 == 7 clocks + * 001 == 6 clocks + * 010 == 5 clocks + * Others == Reserved + * [23:19] Reserved + * [18:16] DRAM idle timer + * 000 == infinite + * 011 == 16 dram clocks + * 001 == 0 clocks + * [15:11] Reserved + * [10:09] Active to Precharge (tRAS) + * 00 == 7 clocks + * 01 == 6 clocks + * 10 == 5 clocks + * 11 == Reserved + * [08:06] Reserved + * [05:04] Cas Latency (tCL) + * 00 == 2.5 Clocks + * 01 == 2.0 Clocks + * 10 == Reserved (was 1.5 Clocks for E7500) + * 11 == Reserved + * [03:03] Write Ras# to Cas# Delay (tRCD) + * 0 == 3 DRAM Clocks + * 1 == 2 DRAM Clocks + * [02:01] Read RAS# to CAS# Delay (tRCD) + * 00 == reserved + * 01 == reserved + * 10 == 3 DRAM Clocks + * 11 == 2 DRAM Clocks + * [00:00] DRAM RAS# to Precharge (tRP) + * 0 == 3 DRAM Clocks + * 1 == 2 DRAM Clocks + */ + + // Some earlier settings: + /* Most aggressive settings possible */ +// 0x78, 0xc0fff8c4, (1<<29)|(1<<28)|(1<<27)|(2<<24)|(2<<9)|CAS_LATENCY|(1<<3)|(1<<1)|(1<<0), +// 0x78, 0xc0f8f8c0, (1<<29)|(1<<28)|(1<<27)|(1<<24)|(1<<16)|(2<<9)|CAS_LATENCY|(1<<3)|(3<<1)|(1<<0), +// 0x78, 0xc0f8f9c0, (1<<29)|(1<<28)|(1<<27)|(1<<24)|(1<<16)|(2<<9)|CAS_LATENCY|(1<<3)|(3<<1)|(1<<0), + + // The only things we need to set here are DRAM idle timer, Back-to-Back Read Turnaround, and + // Back-to-Back Write-Read Turnaround. All others are configured based on SPD. +// 0x78, 0xD7F8FFFF, (1 << 29) | (1 << 27) | (1 << 16), + 0x78, 0xC7F8FFFF, (0x03<<16)|(0x28<<24), + + /* FIXME why was I attempting to set a reserved bit? */ + /* 0x0100040f */ + + /* DRC - DRAM Contoller Mode Register + * 0x7c + * [31:30] Reserved + * [29:29] Initialization Complete + * 0 == Not Complete + * 1 == Complete + * [28:23] Reserved + * [22:22] Channels + * 0 == Single channel + * 1 == Dual Channel + * [21:20] DRAM Data Integrity Mode + * 00 == Disabled, no ECC + * 01 == Reserved + * 10 == Error checking, using chip-kill, with correction + * 11 == Reserved + * [19:18] DRB Granularity (Read-Only) + * 00 == 32 MB quantities (single channel mode) + * 01 == 64 MB quantities (dual-channel mode) + * 10 == Reserved + * 11 == Reserved + * [17:17] (Intel Undocumented) should always be set to 1 (SJM: comment inconsistent with current setting, below) + * [16:16] Command Per Clock - Address/Control Assertion Rule (CPC) + * 0 == 2n Rule + * 1 == 1n rule + * [15:11] Reserved + * [10:08] Refresh mode select + * 000 == Refresh disabled + * 001 == Refresh interval 15.6 usec + * 010 == Refresh interval 7.8 usec + * 011 == Refresh interval 64 usec + * 111 == Refresh every 64 clocks (fast refresh) + * [07:07] Reserved + * [06:04] Mode Select (SMS) + * 000 == Reserved (was Self Refresh Mode in E7500) + * 001 == NOP Command + * 010 == All Banks Precharge + * 011 == Mode Register Set + * 100 == Extended Mode Register Set + * 101 == Reserved + * 110 == CBR Refresh + * 111 == Normal Operation + * [03:00] Reserved + */ +// .long 0x7c, 0xffcefcff, (1<<22)|(2 << 20)|(1 << 16)| (0 << 8), +// .long 0x7c, 0xff8cfcff, (1<<22)|(2 << 20)|(1 << 17)|(1 << 16)| (0 << 8), +// .long 0x7c, 0xff80fcff, (1<<22)|(2 << 20)|(1 << 18)|(1 << 17)|(1 << 16)| (0 << 8), + + // Default to dual-channel mode, ECC, 1-clock address/cmd hold + // NOTE: configure_e7501_dram_controller_mode() configures further +// 0x7c, 0xff8ef8ff, (1 << 22) | (2 << 20) | (1 << 16) | (0 << 8), + 0x7c, 0xffcef8f7, 0x00210008, + + /* Another Intel undocumented register + * 0x88 - 0x8B + * [31:31] Purpose unknown + * [26:26] Master DLL Reset? + * 0 == Normal operation? + * 1 == Reset? + * [07:07] Periodic memory recalibration? + * 0 == Disabled? + * 1 == Enabled? + * [04:04] Receive FIFO RE-Sync? + * 0 == Normal operation? + * 1 == Reset? + */ + // NOTE: Some factory BIOSs don't do this. + // Doesn't seem to matter either way. + 0x88, 0xffffff00, 0x80, + + /* CLOCK_DIS - CK/CK# Disable Register + * 0x8C + * [7:7] DDR Frequency + * 0 == 100 MHz (200 MHz data rate) + * 1 == 133 MHz (266 MHz data rate) + * [6:4] Reserved + * [3:3] CK3 + * 0 == Enable + * 1 == Disable + * [2:2] CK2 + * 0 == Enable + * 1 == Disable + * [1:1] CK1 + * 0 == Enable + * 1 == Disable + * [0:0] CK0 + * 0 == Enable + * 1 == Disable + */ + // NOTE: Disable all clocks initially; turn ones we need back on + // in enable_e7501_clocks() + 0x8C, 0xfffffff0, 0xf, + + /* TOLM - Top of Low Memory Register + * 0xC4 - 0xC5 + * [15:11] Top of low memory (TOLM) + * The address below 4GB that should be treated as RAM, + * on a 128MB granularity. + * [10:00] Reserved + */ + /* REMAPBASE - Remap Base Address Regsiter + * 0xC6 - 0xC7 + * [15:10] Reserved + * [09:00] Remap Base Address [35:26] 64M aligned + * Bits [25:0] are assumed to be 0. + */ + + // NOTE: TOLM overridden by configure_e7501_ram_addresses() + 0xc4, 0xfc0007ff, (0x2000 << 0) | (0x3ff << 16), + + /* REMAPLIMIT - Remap Limit Address Register + * 0xC8 - 0xC9 + * [15:10] Reserved + * [09:00] Remap Limit Address [35:26] 64M aligned + * When remaplimit < remapbase the remap window is disabled. + */ + 0xc8, 0xfffffc00, 0, + + /* DVNP - Device Not Present Register + * 0xE0 - 0xE1 + * [15:05] Reserved + * [04:04] Device 4 Function 1 Present + * 0 == Present + * 1 == Absent + * [03:03] Device 3 Function 1 Present + * 0 == Present + * 1 == Absent + * [02:02] Device 2 Function 1 Present + * 0 == Present + * 1 == Absent + * [01:01] Reserved + * [00:00] Device 0 Function 1 Present + * 0 == Present + * 1 == Absent + */ + + // Enable D0:D1, disable D2:F1, D3:F1, D4:F1 +// 0xe0, 0xffffffe2, (1 << 4) | (1 << 3) | (1 << 2) | (0 << 0), + 0xe0, 0xfffffffa, 0x0, + + // Undocumented + 0xd8, 0xffff9fff, 0x00000000, + + // Undocumented - this is pure conjecture based on similarity to 855PM + /* MCHTST - MCH Test Register + * 0xF4 - 0xF7 + * [31:31] Purpose unknown + * [30:30] Purpose unknown + * [29:23] Unknown - not used? + * [22:22] System Memory MMR Enable + * 0 == Disable: mem space and BAR at 0x14 are not accessible + * 1 == Enable: mem space and BAR at 0x14 are accessible + * [21:20] Purpose unknown + * [19:02] Unknown - not used? + * [01:01] D6EN (Device #6 enable) + * 0 == Disable + * 1 == Enable + * [00:00] Unknown - not used? + */ + +// 0xf4, 0x3f8ffffd, 0x40300002, + +#ifdef SUSPICIOUS_LOOKING_CODE + // SJM: Undocumented. + // This will access D2:F0:0x50, is this correct?? + 0x1050, 0xffffffcf, 0x00000030, +#endif +}; + + /* DDR RECOMP tables */ +#if 0 +// Slew table for 1x drive? +static const uint32_t maybe_1x_slew_table[] = { + 0x44332211, 0xc9776655, 0xffffffff, 0xffffffff, + 0x22111111, 0x55444332, 0xfffca876, 0xffffffff, +}; +#endif + +// Slew table for 2x drive? +static const uint32_t maybe_2x_slew_table[] = { + 0x00000000, 0x76543210, 0xffffeca8, 0xffffffff, + 0x21000000, 0xa8765432, 0xffffffec, 0xffffffff, +}; + +// Pull Up / Pull Down offset table, if analogous to IXP2800? +static const uint32_t maybe_pull_updown_offset_table[] = { + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, + 0x88888888, 0x88888888, 0x88888888, 0x88888888, +}; + +/*----------------------------------------------------------------------------- +Delay functions: +-----------------------------------------------------------------------------*/ + +#define SLOW_DOWN_IO inb(0x80) +//#define SLOW_DOWN_IO udelay(40); + + /* Estimate that SLOW_DOWN_IO takes about 50&76us */ + /* delay for 200us */ + +#if 1 +static void do_delay(void) +{ + int i; + for (i = 0; i < 16; i++) { + SLOW_DOWN_IO; + } +} + +#define DO_DELAY do_delay() +#else +#define DO_DELAY \ + udelay(200) +#endif + +#define EXTRA_DELAY DO_DELAY + +/*----------------------------------------------------------------------------- +Handle (undocumented) control bits in device 0:6.0 +-----------------------------------------------------------------------------*/ + +/** + * + */ +static void ram_handle_d060_1(void) +{ + uint32_t dword; + + dword = pci_read_config32(PCI_DEV(0,0,0), MAYBE_MCHTST); + dword |= 0x02; + pci_write_config32(PCI_DEV(0,0,0), MAYBE_MCHTST, dword); + + dword = pci_read_config32(PCI_DEV(0,6,0), 0xf0); + dword |= 0x04; + pci_write_config32(PCI_DEV(0,6,0), 0xf0, dword); + + dword = pci_read_config32(PCI_DEV(0,0,0), MAYBE_MCHTST); + dword &= ~0x02; + pci_write_config32(PCI_DEV(0,0,0), MAYBE_MCHTST, dword); +} + +/** + * + */ +static void ram_handle_d060_2(void) +{ + uint32_t dword; + uint8_t revision; + + revision = pci_read_config8(PCI_DEV(0,0,0), 0x08); + if (revision >= 3) { + dword = pci_read_config32(PCI_DEV(0,0,0), MAYBE_MCHTST); + dword |= 0x02; + pci_write_config32(PCI_DEV(0,0,0), MAYBE_MCHTST, dword); + + dword = pci_read_config32(PCI_DEV(0,6,0), 0xf0); + dword |= 0x18000000; + pci_write_config32(PCI_DEV(0,6,0), 0xf0, dword); + + dword = pci_read_config32(PCI_DEV(0,0,0), MAYBE_MCHTST); + dword &= ~0x02; + pci_write_config32(PCI_DEV(0,0,0), MAYBE_MCHTST, dword); + } +} + +/*----------------------------------------------------------------------------- +Serial presence detect (SPD) functions: +-----------------------------------------------------------------------------*/ + +static void die_on_spd_error(int spd_return_value) +{ + if (spd_return_value < 0) + die("Error reading SPD info\n"); +} + +/** + * Calculate the page size for each physical bank of the DIMM: + * log2(page size) = (# columns) + log2(data width) + * + * NOTE: Page size is the total number of data bits in a row. + * + * @param dimm_socket_address SMBus address of DIMM socket to interrogate. + * @return log2(page size) for each side of the DIMM. + */ +static struct dimm_size sdram_spd_get_page_size(uint16_t dimm_socket_address) +{ + uint16_t module_data_width; + int value; + struct dimm_size pgsz; + + pgsz.side1 = 0; + pgsz.side2 = 0; + + // Side 1 + value = spd_read_byte(dimm_socket_address, SPD_NUM_COLUMNS); + if (value < 0) + goto hw_err; + pgsz.side1 = value & 0xf; // # columns in bank 1 + + /* Get the module data width and convert it to a power of two */ + value = + spd_read_byte(dimm_socket_address, SPD_MODULE_DATA_WIDTH_MSB); + if (value < 0) + goto hw_err; + module_data_width = (value & 0xff) << 8; + + value = + spd_read_byte(dimm_socket_address, SPD_MODULE_DATA_WIDTH_LSB); + if (value < 0) + goto hw_err; + module_data_width |= (value & 0xff); + + pgsz.side1 += log2(module_data_width); + + /* side two */ + value = spd_read_byte(dimm_socket_address, SPD_NUM_DIMM_BANKS); + if (value < 0) + goto hw_err; + if (value > 2) + die("Bad SPD value\n"); + if (value == 2) { + + pgsz.side2 = pgsz.side1; // Assume symmetric banks until we know differently + value = + spd_read_byte(dimm_socket_address, SPD_NUM_COLUMNS); + if (value < 0) + goto hw_err; + if ((value & 0xf0) != 0) { + // Asymmetric banks + pgsz.side2 -= value & 0xf; /* Subtract out columns on side 1 */ + pgsz.side2 += (value >> 4) & 0xf; /* Add in columns on side 2 */ + } + } + + return pgsz; + + hw_err: + die(SPD_ERROR); + return pgsz; // Never reached +} + +/** + * Read the width in bits of each DIMM side's DRAMs via SPD (i.e. 4, 8, 16). + * + * @param dimm_socket_address SMBus address of DIMM socket to interrogate. + * @return Width in bits of each DIMM side's DRAMs. + */ +static struct dimm_size sdram_spd_get_width(uint16_t dimm_socket_address) +{ + int value; + struct dimm_size width; + + width.side1 = 0; + width.side2 = 0; + + value = + spd_read_byte(dimm_socket_address, SPD_PRIMARY_SDRAM_WIDTH); + die_on_spd_error(value); + + width.side1 = value & 0x7f; // Mask off bank 2 flag + + if (value & 0x80) { + width.side2 = width.side1 << 1; // Bank 2 exists and is double-width + } else { + // If bank 2 exists, it's the same width as bank 1 + value = + spd_read_byte(dimm_socket_address, SPD_NUM_DIMM_BANKS); + die_on_spd_error(value); + +#ifdef ROMCC_IF_BUG_FIXED + if (value == 2) + width.side2 = width.side1; +#else + switch (value) { + case 2: + width.side2 = width.side1; + break; + + default: + break; + } +#endif + } + + return width; +} + +/** + * Calculate the log base 2 size in bits of both DIMM sides. + * + * log2(# bits) = (# columns) + log2(data width) + + * (# rows) + log2(banks per SDRAM) + * + * Note that it might be easier to use SPD byte 31 here, it has the DIMM size + * as a multiple of 4MB. The way we do it now we can size both sides of an + * asymmetric DIMM. + * + * @param dimm_socket_address SMBus address of DIMM socket to interrogate. + * @return log2(number of bits) for each side of the DIMM. + */ +static struct dimm_size spd_get_dimm_size(unsigned dimm_socket_address) +{ + int value; + + // Start with log2(page size) + struct dimm_size sz = sdram_spd_get_page_size(dimm_socket_address); + + if (sz.side1 > 0) { + + value = spd_read_byte(dimm_socket_address, SPD_NUM_ROWS); + die_on_spd_error(value); + + sz.side1 += value & 0xf; + + if (sz.side2 > 0) { + + // Double-sided DIMM + if (value & 0xF0) + sz.side2 += value >> 4; // Asymmetric + else + sz.side2 += value; // Symmetric + } + + value = + spd_read_byte(dimm_socket_address, + SPD_NUM_BANKS_PER_SDRAM); + die_on_spd_error(value); + + value = log2(value); + sz.side1 += value; + if (sz.side2 > 0) + sz.side2 += value; + } + + return sz; +} + +#ifdef VALIDATE_DIMM_COMPATIBILITY + +/** + * Determine whether two DIMMs have the same value for an SPD parameter. + * + * @param spd_byte_number The SPD byte number to compare in both DIMMs. + * @param dimm0_address SMBus address of the 1st DIMM socket to interrogate. + * @param dimm1_address SMBus address of the 2nd DIMM socket to interrogate. + * @return 1 if both DIMM sockets report the same value for the specified + * SPD parameter, 0 if the values differed or an error occurred. + */ +static uint8_t are_spd_values_equal(uint8_t spd_byte_number, + uint16_t dimm0_address, + uint16_t dimm1_address) +{ + uint8_t bEqual = 0; + int dimm0_value = spd_read_byte(dimm0_address, spd_byte_number); + int dimm1_value = spd_read_byte(dimm1_address, spd_byte_number); + + if ((dimm0_value >= 0) && (dimm1_value >= 0) + && (dimm0_value == dimm1_value)) + bEqual = 1; + + return bEqual; +} +#endif + +/** + * Scan for compatible DIMMs. + * + * The code in this module only supports dual-channel operation, so we test + * that compatible DIMMs are paired. + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + * @return A bitmask indicating which of the possible sockets for each channel + * was found to contain a compatible DIMM. + * Bit 0 corresponds to the closest socket for channel 0 + * Bit 1 to the next socket for channel 0 + * ... + * Bit MAX_DIMM_SOCKETS_PER_CHANNEL-1 to the last socket for channel 0 + * Bit MAX_DIMM_SOCKETS_PER_CHANNEL is the closest socket for channel 1 + * ... + * Bit 2*MAX_DIMM_SOCKETS_PER_CHANNEL-1 is the last socket for channel 1 + */ +static uint8_t spd_get_supported_dimms(const struct mem_controller *ctrl) +{ + int i; + uint8_t dimm_mask = 0; + + // Have to increase size of dimm_mask if this assertion is violated + ASSERT(MAX_DIMM_SOCKETS_PER_CHANNEL <= 4); + + // Find DIMMs we can support on channel 0. + // Then see if the corresponding channel 1 DIMM has the same parameters, + // since we only support dual-channel. + + for (i = 0; i < MAX_DIMM_SOCKETS_PER_CHANNEL; i++) { + + uint16_t channel0_dimm = ctrl->channel0[i]; + uint16_t channel1_dimm = ctrl->channel1[i]; + uint8_t bDualChannel = 1; +#ifdef VALIDATE_DIMM_COMPATIBILITY + struct dimm_size page_size; + struct dimm_size sdram_width; +#endif + int spd_value; + + if (channel0_dimm == 0) + continue; // No such socket on this mainboard + + if (spd_read_byte(channel0_dimm, SPD_MEMORY_TYPE) != + SPD_MEMORY_TYPE_SDRAM_DDR) + continue; + +#ifdef VALIDATE_DIMM_COMPATIBILITY + if (spd_read_byte(channel0_dimm, SPD_MODULE_VOLTAGE) != + SPD_VOLTAGE_SSTL2) + continue; // Unsupported voltage + + // E7501 does not support unregistered DIMMs + spd_value = + spd_read_byte(channel0_dimm, SPD_MODULE_ATTRIBUTES); + if (!(spd_value & MODULE_REGISTERED) || (spd_value < 0)) + continue; + + // Must support burst = 4 for dual-channel operation on E7501 + // NOTE: for single-channel, burst = 8 is required + spd_value = + spd_read_byte(channel0_dimm, + SPD_SUPPORTED_BURST_LENGTHS); + if (!(spd_value & SPD_BURST_LENGTH_4) || (spd_value < 0)) + continue; + + page_size = sdram_spd_get_page_size(channel0_dimm); + sdram_width = sdram_spd_get_width(channel0_dimm); + + // Validate DIMM page size + // The E7501 only supports page sizes of 4, 8, 16, or 32 KB per channel + // NOTE: 4 KB = 32 Kb = 2^15 + // 32 KB = 262 Kb = 2^18 + + if ((page_size.side1 < 15) || (page_size.side1 > 18)) + continue; + + // If DIMM is double-sided, verify side2 page size + if (page_size.side2 != 0) { + if ((page_size.side2 < 15) + || (page_size.side2 > 18)) + continue; + } + // Validate SDRAM width + // The E7501 only supports x4 and x8 devices + + if ((sdram_width.side1 != 4) && (sdram_width.side1 != 8)) + continue; + + // If DIMM is double-sided, verify side2 width + if (sdram_width.side2 != 0) { + if ((sdram_width.side2 != 4) + && (sdram_width.side2 != 8)) + continue; + } +#endif + // Channel 0 DIMM looks compatible. + // Now see if it is paired with the proper DIMM on channel 1. + + ASSERT(channel1_dimm != 0); // No such socket on this mainboard?? + + // NOTE: unpopulated DIMMs cause read to fail + spd_value = + spd_read_byte(channel1_dimm, SPD_MODULE_ATTRIBUTES); + if (!(spd_value & MODULE_REGISTERED) || (spd_value < 0)) { + + print_debug("Skipping un-matched DIMMs - only dual-channel operation supported\n"); + continue; + } +#ifdef VALIDATE_DIMM_COMPATIBILITY + spd_value = + spd_read_byte(channel1_dimm, + SPD_SUPPORTED_BURST_LENGTHS); + if (!(spd_value & SPD_BURST_LENGTH_4) || (spd_value < 0)) + continue; + + int j; + for (j = 0; j < sizeof(dual_channel_parameters); ++j) { + if (!are_spd_values_equal + (dual_channel_parameters[j], channel0_dimm, + channel1_dimm)) { + + bDualChannel = 0; + break; + } + } +#endif + + // Code around ROMCC bug in optimization of "if" statements +#ifdef ROMCC_IF_BUG_FIXED + if (bDualChannel) { + // Made it through all the checks, this DIMM pair is usable + dimm_mask |= ((1 << i) | (1 << (MAX_DIMM_SOCKETS_PER_CHANNEL + i))); + } else + print_debug("Skipping un-matched DIMMs - only dual-channel operation supported\n"); +#else + switch (bDualChannel) { + case 0: + print_debug("Skipping un-matched DIMMs - only dual-channel operation supported\n"); + break; + + default: + // Made it through all the checks, this DIMM pair is usable + dimm_mask |= (1 << i) | (1 << (MAX_DIMM_SOCKETS_PER_CHANNEL + i)); + break; + } +#endif + } + + return dimm_mask; +} + +/*----------------------------------------------------------------------------- +SDRAM configuration functions: +-----------------------------------------------------------------------------*/ + +/** + * Send the specified command to all DIMMs. + * + * @param command Specifies the command to be sent to the DIMMs. + * @param jedec_mode_bits For the MRS & EMRS commands, bits 0-12 contain the + * register value in JEDEC format. + */ +static void do_ram_command(uint8_t command, uint16_t jedec_mode_bits) +{ + uint8_t dimm_start_64M_multiple; + uint32_t dimm_start_address; + uint32_t dram_controller_mode; + uint8_t i; + + // Configure the RAM command + dram_controller_mode = pci_read_config32(PCI_DEV(0, 0, 0), DRC); + dram_controller_mode &= 0xFFFFFF8F; + dram_controller_mode |= command; + pci_write_config32(PCI_DEV(0, 0, 0), DRC, dram_controller_mode); + + // RAM_COMMAND_NORMAL is an exception. + // It affects only the memory controller and does not need to be "sent" to the DIMMs. + if (command == RAM_COMMAND_NORMAL) + return; + + // NOTE: for mode select commands, some of the location address bits are part of the command + // Map JEDEC mode bits to E7505 + if (command == RAM_COMMAND_MRS) { + // Host address lines [25:18] map to DIMM address lines [7:0] + // Host address lines [17:16] map to DIMM address lines [9:8] + // Host address lines [15:4] map to DIMM address lines [11:0] + dimm_start_address = (jedec_mode_bits & 0x00ff) << 18; + dimm_start_address |= (jedec_mode_bits & 0x0300) << 8; + dimm_start_address |= (jedec_mode_bits & 0x0fff) << 4; + } else if (command == RAM_COMMAND_EMRS) { + // Host address lines [15:4] map to DIMM address lines [11:0] + dimm_start_address = (jedec_mode_bits << 4); + } else { + ASSERT(jedec_mode_bits == 0); + dimm_start_address = 0; + } + + // Send the command to all DIMMs by accessing a memory location within each + + dimm_start_64M_multiple = 0; + + for (i = 0; i < (MAX_NUM_CHANNELS * MAX_DIMM_SOCKETS_PER_CHANNEL); ++i) { + + uint8_t dimm_end_64M_multiple = pci_read_config8(PCI_DEV(0, 0, 0), DRB_ROW_0 + i); + + if (dimm_end_64M_multiple > dimm_start_64M_multiple) { + dimm_start_address &= 0x3ffffff; + dimm_start_address |= dimm_start_64M_multiple << 26; + read32(dimm_start_address); + // Set the start of the next DIMM + dimm_start_64M_multiple = dimm_end_64M_multiple; + } + } + +} + +/** + * Set the mode register of all DIMMs. + * + * The proper CAS# latency setting is added to the mode bits specified + * by the caller. + * + * @param jedec_mode_bits For the MRS & EMRS commands, bits 0-12 contain the + * register value in JEDEC format. + */ +static void set_ram_mode(uint16_t jedec_mode_bits) +{ + ASSERT(!(jedec_mode_bits & SDRAM_CAS_MASK)); + + uint32_t dram_cas_latency = + pci_read_config32(PCI_DEV(0, 0, 0), DRT) & DRT_CAS_MASK; + + switch (dram_cas_latency) { + case DRT_CAS_2_5: + jedec_mode_bits |= SDRAM_CAS_2_5; + break; + + case DRT_CAS_2_0: + jedec_mode_bits |= SDRAM_CAS_2_0; + break; + + default: + BUG(); + break; + } + + do_ram_command(RAM_COMMAND_MRS, jedec_mode_bits); +} + +/*----------------------------------------------------------------------------- +DIMM-independant configuration functions: +-----------------------------------------------------------------------------*/ + +/** + * Configure the E7501's DRAM Row Boundary (DRB) registers for the memory + * present in the specified DIMM. + * + * @param dimm_log2_num_bits Specifies log2(number of bits) for each side of + * the DIMM. + * @param total_dram_64M_multiple Total DRAM in the system (as a multiple of + * 64 MB) for DIMMs < dimm_index. + * @param dimm_index Which DIMM pair is being processed + * (0..MAX_DIMM_SOCKETS_PER_CHANNEL). + * @return New multiple of 64 MB total DRAM in the system. + */ +static uint8_t configure_dimm_row_boundaries(struct dimm_size dimm_log2_num_bits, uint8_t total_dram_64M_multiple, unsigned dimm_index) +{ + int i; + + ASSERT(dimm_index < MAX_DIMM_SOCKETS_PER_CHANNEL); + + // DIMM sides must be at least 32 MB + ASSERT(dimm_log2_num_bits.side1 >= 28); + ASSERT((dimm_log2_num_bits.side2 == 0) + || (dimm_log2_num_bits.side2 >= 28)); + + // In dual-channel mode, we are called only once for each pair of DIMMs. + // Each time we process twice the capacity of a single DIMM. + + // Convert single DIMM capacity to paired DIMM capacity + // (multiply by two ==> add 1 to log2) + dimm_log2_num_bits.side1++; + if (dimm_log2_num_bits.side2 > 0) + dimm_log2_num_bits.side2++; + + // Add the capacity of side 1 this DIMM pair (as a multiple of 64 MB) + // to the total capacity of the system + // NOTE: 64 MB == 512 Mb, and log2(512 Mb) == 29 + + total_dram_64M_multiple += (1 << (dimm_log2_num_bits.side1 - 29)); + + // Configure the boundary address for the row on side 1 + pci_write_config8(PCI_DEV(0, 0, 0), DRB_ROW_0 + (dimm_index << 1), + total_dram_64M_multiple); + + // If the DIMMs are double-sided, add the capacity of side 2 this DIMM pair + // (as a multiple of 64 MB) to the total capacity of the system + if (dimm_log2_num_bits.side2 >= 29) + total_dram_64M_multiple += + (1 << (dimm_log2_num_bits.side2 - 29)); + + // Configure the boundary address for the row (if any) on side 2 + pci_write_config8(PCI_DEV(0, 0, 0), DRB_ROW_1 + (dimm_index << 1), + total_dram_64M_multiple); + + // Update boundaries for rows subsequent to these. + // These settings will be overridden by a subsequent call if a populated physical slot exists + + for (i = dimm_index + 1; i < MAX_DIMM_SOCKETS_PER_CHANNEL; i++) { + pci_write_config8(PCI_DEV(0, 0, 0), DRB_ROW_0 + (i << 1), + total_dram_64M_multiple); + pci_write_config8(PCI_DEV(0, 0, 0), DRB_ROW_1 + (i << 1), + total_dram_64M_multiple); + } + + return total_dram_64M_multiple; +} + +/** + * Set the E7501's DRAM row boundary addresses & its Top Of Low Memory (TOLM). + * + * If necessary, set up a remap window so we don't waste DRAM that ordinarily + * would lie behind addresses reserved for memory-mapped I/O. + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + * @param dimm_mask Bitmask of populated DIMMs, see spd_get_supported_dimms(). + */ +static void configure_e7501_ram_addresses(const struct mem_controller + *ctrl, uint8_t dimm_mask) +{ + int i; + uint8_t total_dram_64M_multiple = 0; + + // Configure the E7501's DRAM row boundaries + // Start by zeroing out the temporary initial configuration + pci_write_config32(PCI_DEV(0, 0, 0), DRB_ROW_0, 0); + pci_write_config32(PCI_DEV(0, 0, 0), DRB_ROW_4, 0); + + for (i = 0; i < MAX_DIMM_SOCKETS_PER_CHANNEL; i++) { + + uint16_t dimm_socket_address = ctrl->channel0[i]; + struct dimm_size sz; + + if (!(dimm_mask & (1 << i))) + continue; // This DIMM not present + + sz = spd_get_dimm_size(dimm_socket_address); + + RAM_DEBUG_MESSAGE("dimm size ="); + RAM_DEBUG_HEX32((u32)sz.side1); + RAM_DEBUG_MESSAGE(" "); + RAM_DEBUG_HEX32((u32)sz.side2); + RAM_DEBUG_MESSAGE("\n"); + + if (sz.side1 == 0) + die("Bad SPD value\n"); + + total_dram_64M_multiple = + configure_dimm_row_boundaries(sz, total_dram_64M_multiple, i); + } + + // Configure the Top Of Low Memory (TOLM) in the E7501 + // This address must be a multiple of 128 MB that is less than 4 GB. + // NOTE: 16-bit wide TOLM register stores only the highest 5 bits of a 32-bit address + // in the highest 5 bits. + + // We set TOLM to the smaller of 0xC0000000 (3 GB) or the total DRAM in the system. + // This reserves addresses from 0xC0000000 - 0xFFFFFFFF for non-DRAM purposes + // such as flash and memory-mapped I/O. + + // If there is more than 3 GB of DRAM, we define a remap window which + // makes the DRAM "behind" the reserved region available above the top of physical + // memory. + + // NOTE: 0xC0000000 / (64 MB) == 0x30 + + if (total_dram_64M_multiple <= 0x30) { + + // <= 3 GB total RAM + + /* I should really adjust all of this in C after I have resources + * to all of the pci devices. + */ + + // Round up to 128MB granularity + // SJM: Is "missing" 64 MB of memory a potential issue? Should this round down? + + uint8_t total_dram_128M_multiple = + (total_dram_64M_multiple + 1) >> 1; + + // Convert to high 16 bits of address + uint16_t top_of_low_memory = + total_dram_128M_multiple << 11; + + pci_write_config16(PCI_DEV(0, 0, 0), TOLM, + top_of_low_memory); + + } else { + + // > 3 GB total RAM + + // Set defaults for > 4 GB DRAM, i.e. remap a 1 GB (= 0x10 * 64 MB) range of memory + uint16_t remap_base = total_dram_64M_multiple; // A[25:0] == 0 + uint16_t remap_limit = total_dram_64M_multiple + 0x10 - 1; // A[25:0] == 0xF + + // Put TOLM at 3 GB + + pci_write_config16(PCI_DEV(0, 0, 0), TOLM, 0xc000); + + // Define a remap window to make the RAM that would appear from 3 GB - 4 GB + // visible just beyond 4 GB or the end of physical memory, whichever is larger + // NOTE: 16-bit wide REMAP registers store only the highest 10 bits of a 36-bit address, + // (i.e. a multiple of 64 MB) in the lowest 10 bits. + // NOTE: 0x100000000 / (64 MB) == 0x40 + + if (total_dram_64M_multiple < 0x40) { + remap_base = 0x40; // 0x100000000 + remap_limit = + 0x40 + (total_dram_64M_multiple - 0x30) - 1; + } + + pci_write_config16(PCI_DEV(0, 0, 0), REMAPBASE, + remap_base); + pci_write_config16(PCI_DEV(0, 0, 0), REMAPLIMIT, + remap_limit); + } +} + +/** + * If we're configured to use ECC, initialize the SDRAM and clear the E7501's + * ECC error flags. + */ +static void initialize_ecc(void) +{ + uint32_t dram_controller_mode; + + /* Test to see if ECC support is enabled */ + dram_controller_mode = pci_read_config32(PCI_DEV(0, 0, 0), DRC); + dram_controller_mode >>= 20; + dram_controller_mode &= 3; + if (dram_controller_mode == 2) { + uint8_t byte; + + RAM_DEBUG_MESSAGE("Initializing ECC state...\n"); + pci_write_config8(PCI_DEV(0, 0, 0), MCHCFGNS, 0x01); + + // Wait for scrub cycle to complete + do { + byte = + pci_read_config8(PCI_DEV(0, 0, 0), MCHCFGNS); + } while ((byte & 0x08) == 0); + + pci_write_config8(PCI_DEV(0, 0, 0), MCHCFGNS, (byte & 0xfc) | 0x04); + RAM_DEBUG_MESSAGE("ECC state initialized.\n"); + + /* Clear the ECC error bits */ + pci_write_config8(PCI_DEV(0, 0, 1), DRAM_FERR, 0x03); + pci_write_config8(PCI_DEV(0, 0, 1), DRAM_NERR, 0x03); + + // Clear DRAM Interface error bits (write-one-clear) + pci_write_config32(PCI_DEV(0, 0, 1), FERR_GLOBAL, 1 << 18); + pci_write_config32(PCI_DEV(0, 0, 1), NERR_GLOBAL, 1 << 18); + } + +} + +/** + * Program the DRAM Timing register (DRT) of the E7501 (except for CAS# + * latency, which is assumed to have been programmed already), based on the + * parameters of the various installed DIMMs. + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + * @param dimm_mask Bitmask of populated DIMMs, see spd_get_supported_dimms(). + */ +static void configure_e7501_dram_timing(const struct mem_controller *ctrl, + uint8_t dimm_mask) +{ + int i; + uint32_t dram_timing; + int value; + uint8_t slowest_row_precharge = 0; + uint8_t slowest_ras_cas_delay = 0; + uint8_t slowest_active_to_precharge_delay = 0; + uint32_t current_cas_latency = + pci_read_config32(PCI_DEV(0, 0, 0), DRT) & DRT_CAS_MASK; + + // CAS# latency must be programmed beforehand + ASSERT((current_cas_latency == DRT_CAS_2_0) + || (current_cas_latency == DRT_CAS_2_5)); + + // Each timing parameter is determined by the slowest DIMM + + for (i = 0; i < MAX_DIMM_SOCKETS; i++) { + uint16_t dimm_socket_address; + + if (!(dimm_mask & (1 << i))) + continue; // This DIMM not present + + if (i < MAX_DIMM_SOCKETS_PER_CHANNEL) + dimm_socket_address = ctrl->channel0[i]; + else + dimm_socket_address = + ctrl->channel1[i - MAX_DIMM_SOCKETS_PER_CHANNEL]; + + value = + spd_read_byte(dimm_socket_address, + SPD_MIN_ROW_PRECHARGE_TIME); + if (value < 0) + goto hw_err; + if (value > slowest_row_precharge) + slowest_row_precharge = value; + + value = + spd_read_byte(dimm_socket_address, + SPD_MIN_RAS_TO_CAS_DELAY); + if (value < 0) + goto hw_err; + if (value > slowest_ras_cas_delay) + slowest_ras_cas_delay = value; + + value = + spd_read_byte(dimm_socket_address, + SPD_MIN_ACTIVE_TO_PRECHARGE_DELAY); + if (value < 0) + goto hw_err; + if (value > slowest_active_to_precharge_delay) + slowest_active_to_precharge_delay = value; + } + + // NOTE for timing parameters: + // At 133 MHz, 1 clock == 7.52 ns + + /* Read the initial state */ + dram_timing = pci_read_config32(PCI_DEV(0, 0, 0), DRT); + + /* Trp */ + + // E7501 supports only 2 or 3 clocks for tRP + if (slowest_row_precharge > ((22 << 2) | (2 << 0))) + die("unsupported DIMM tRP"); // > 22.5 ns: 4 or more clocks + else if (slowest_row_precharge > (15 << 2)) + dram_timing &= ~(1 << 0); // > 15.0 ns: 3 clocks + else + dram_timing |= (1 << 0); // <= 15.0 ns: 2 clocks + + /* Trcd */ + + // E7501 supports only 2 or 3 clocks for tRCD + // Use the same value for both read & write + dram_timing &= ~((1 << 3) | (3 << 1)); + if (slowest_ras_cas_delay > ((22 << 2) | (2 << 0))) + die("unsupported DIMM tRCD"); // > 22.5 ns: 4 or more clocks + else if (slowest_ras_cas_delay > (15 << 2)) + dram_timing |= (2 << 1); // > 15.0 ns: 3 clocks + else + dram_timing |= ((1 << 3) | (3 << 1)); // <= 15.0 ns: 2 clocks + + /* Tras */ + + // E7501 supports only 5, 6, or 7 clocks for tRAS + // 5 clocks ~= 37.6 ns, 6 clocks ~= 45.1 ns, 7 clocks ~= 52.6 ns + dram_timing &= ~(3 << 9); + + if (slowest_active_to_precharge_delay > 52) + die("unsupported DIMM tRAS"); // > 52 ns: 8 or more clocks + else if (slowest_active_to_precharge_delay > 45) + dram_timing |= (0 << 9); // 46-52 ns: 7 clocks + else if (slowest_active_to_precharge_delay > 37) + dram_timing |= (1 << 9); // 38-45 ns: 6 clocks + else + dram_timing |= (2 << 9); // < 38 ns: 5 clocks + + /* Trd */ + + /* Set to a 7 clock read delay. This is for 133Mhz + * with a CAS latency of 2.5 if 2.0 a 6 clock + * delay is good */ + + dram_timing &= ~(7 << 24); // 7 clocks + if (current_cas_latency == DRT_CAS_2_0) + dram_timing |= (1 << 24); // 6 clocks + + /* + * Back to Back Read-Write Turn Around + */ + /* Set to a 5 clock back to back read to write turn around. + * 4 is a good delay if the CAS latency is 2.0 */ + + dram_timing &= ~(1 << 28); // 5 clocks + if (current_cas_latency == DRT_CAS_2_0) + dram_timing |= (1 << 28); // 4 clocks + + pci_write_config32(PCI_DEV(0, 0, 0), DRT, dram_timing); + + return; + + hw_err: + die(SPD_ERROR); +} + +/** + * Determine the shortest CAS# latency that the E7501 and all DIMMs have in + * common, and program the E7501 to use it. + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + * @param dimm_mask Bitmask of populated DIMMs, spd_get_supported_dimms(). + */ +static void configure_e7501_cas_latency(const struct mem_controller *ctrl, + uint8_t dimm_mask) +{ + int i; + int value; + uint32_t dram_timing; + uint16_t maybe_dram_read_timing; + uint32_t dword; + + // CAS# latency bitmasks in SPD_ACCEPTABLE_CAS_LATENCIES format + // NOTE: E7501 supports only 2.0 and 2.5 + uint32_t system_compatible_cas_latencies = + SPD_CAS_LATENCY_2_0 | SPD_CAS_LATENCY_2_5; + uint32_t current_cas_latency; + uint32_t dimm_compatible_cas_latencies; + + for (i = 0; i < MAX_DIMM_SOCKETS; i++) { + + uint16_t dimm_socket_address; + + if (!(dimm_mask & (1 << i))) + continue; // This DIMM not usable + + if (i < MAX_DIMM_SOCKETS_PER_CHANNEL) + dimm_socket_address = ctrl->channel0[i]; + else + dimm_socket_address = + ctrl->channel1[i - MAX_DIMM_SOCKETS_PER_CHANNEL]; + + value = + spd_read_byte(dimm_socket_address, + SPD_ACCEPTABLE_CAS_LATENCIES); + if (value < 0) + goto hw_err; + + dimm_compatible_cas_latencies = value & 0x7f; // Start with all supported by DIMM + current_cas_latency = 1 << log2(dimm_compatible_cas_latencies); // Max supported by DIMM + + // Can we support the highest CAS# latency? + + value = + spd_read_byte(dimm_socket_address, + SPD_MIN_CYCLE_TIME_AT_CAS_MAX); + if (value < 0) + goto hw_err; + + // NOTE: At 133 MHz, 1 clock == 7.52 ns + if (value > 0x75) { + // Our bus is too fast for this CAS# latency + // Remove it from the bitmask of those supported by the DIMM that are compatible + dimm_compatible_cas_latencies &= ~current_cas_latency; + } + // Can we support the next-highest CAS# latency (max - 0.5)? + + current_cas_latency >>= 1; + if (current_cas_latency != 0) { + value = + spd_read_byte(dimm_socket_address, + SPD_SDRAM_CYCLE_TIME_2ND); + if (value < 0) + goto hw_err; + if (value > 0x75) + dimm_compatible_cas_latencies &= + ~current_cas_latency; + } + // Can we support the next-highest CAS# latency (max - 1.0)? + current_cas_latency >>= 1; + if (current_cas_latency != 0) { + value = + spd_read_byte(dimm_socket_address, + SPD_SDRAM_CYCLE_TIME_3RD); + if (value < 0) + goto hw_err; + if (value > 0x75) + dimm_compatible_cas_latencies &= + ~current_cas_latency; + } + // Restrict the system to CAS# latencies compatible with this DIMM + system_compatible_cas_latencies &= + dimm_compatible_cas_latencies; + + /* go to the next DIMM */ + } + + /* After all of the arduous calculation setup with the fastest + * cas latency I can use. + */ + + dram_timing = pci_read_config32(PCI_DEV(0, 0, 0), DRT); + dram_timing &= ~(DRT_CAS_MASK); + + maybe_dram_read_timing = + pci_read_config16(PCI_DEV(0, 0, 0), MAYBE_DRDCTL); + maybe_dram_read_timing &= 0xF000; + + if (system_compatible_cas_latencies & SPD_CAS_LATENCY_2_0) { + dram_timing |= DRT_CAS_2_0; + maybe_dram_read_timing |= 0x0222; + } else if (system_compatible_cas_latencies & SPD_CAS_LATENCY_2_5) { + + uint32_t dram_row_attributes = + pci_read_config32(PCI_DEV(0, 0, 0), DRA); + + dram_timing |= DRT_CAS_2_5; + + // At CAS# 2.5, DRAM Read Timing (if that's what it its) appears to need a slightly + // different value if all DIMM slots are populated + + if ((dram_row_attributes & 0xff) + && (dram_row_attributes & 0xff00) + && (dram_row_attributes & 0xff0000) + && (dram_row_attributes & 0xff000000)) { + + // All slots populated + maybe_dram_read_timing |= 0x0882; + } else { + // Some unpopulated slots + maybe_dram_read_timing |= 0x0662; + } + } else + die("No CAS# latencies compatible with all DIMMs!!\n"); + + pci_write_config32(PCI_DEV(0, 0, 0), DRT, dram_timing); + + /* set master DLL reset */ + dword = pci_read_config32(PCI_DEV(0, 0, 0), 0x88); + dword |= (1 << 26); + pci_write_config32(PCI_DEV(0, 0, 0), 0x88, dword); + /* patch try register 88 is undocumented tnz */ + dword &= 0x0ca17fff; + dword |= 0xd14a5000; + pci_write_config32(PCI_DEV(0, 0, 0), 0x88, dword); + + pci_write_config16(PCI_DEV(0, 0, 0), MAYBE_DRDCTL, + maybe_dram_read_timing); + + /* clear master DLL reset */ + dword = pci_read_config32(PCI_DEV(0, 0, 0), 0x88); + dword &= ~(1 << 26); + pci_write_config32(PCI_DEV(0, 0, 0), 0x88, dword); + + return; + +hw_err: + die(SPD_ERROR); +} + +/** + * Configure the refresh interval so that we refresh no more often than + * required by the "most needy" DIMM. Also disable ECC if any of the DIMMs + * don't support it. + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + * @param dimm_mask Bitmask of populated DIMMs, spd_get_supported_dimms(). + */ +static void configure_e7501_dram_controller_mode(const struct + mem_controller *ctrl, + uint8_t dimm_mask) +{ + int i; + + // Initial settings + uint32_t controller_mode = + pci_read_config32(PCI_DEV(0, 0, 0), DRC); + uint32_t system_refresh_mode = (controller_mode >> 8) & 7; + + // Code below assumes that most aggressive settings are in + // force when we are called, either via E7501 reset defaults + // or by sdram_set_registers(): + // - ECC enabled + // - No refresh + + ASSERT((controller_mode & (3 << 20)) == (2 << 20)); // ECC + ASSERT(!(controller_mode & (7 << 8))); // Refresh + + /* Walk through _all_ dimms and find the least-common denominator for: + * - ECC support + * - refresh rates + */ + + for (i = 0; i < MAX_DIMM_SOCKETS; i++) { + + uint32_t dimm_refresh_mode; + int value; + uint16_t dimm_socket_address; + + if (!(dimm_mask & (1 << i))) { + continue; // This DIMM not usable + } + + if (i < MAX_DIMM_SOCKETS_PER_CHANNEL) + dimm_socket_address = ctrl->channel0[i]; + else + dimm_socket_address = + ctrl->channel1[i - + MAX_DIMM_SOCKETS_PER_CHANNEL]; + + // Disable ECC mode if any one of the DIMMs does not support ECC + // SJM: Should we just die here? E7501 datasheet says non-ECC DIMMs aren't supported. + + value = + spd_read_byte(dimm_socket_address, + SPD_DIMM_CONFIG_TYPE); + die_on_spd_error(value); + if (value != ERROR_SCHEME_ECC) { + controller_mode &= ~(3 << 20); + } + + value = spd_read_byte(dimm_socket_address, SPD_REFRESH); + die_on_spd_error(value); + value &= 0x7f; // Mask off self-refresh bit + if (value > MAX_SPD_REFRESH_RATE) { + print_err("unsupported refresh rate\n"); + continue; + } + // Get the appropriate E7501 refresh mode for this DIMM + dimm_refresh_mode = refresh_rate_map[value]; + if (dimm_refresh_mode > 7) { + print_err("unsupported refresh rate\n"); + continue; + } + // If this DIMM requires more frequent refresh than others, + // update the system setting + if (refresh_frequency[dimm_refresh_mode] > + refresh_frequency[system_refresh_mode]) + system_refresh_mode = dimm_refresh_mode; + +#ifdef SUSPICIOUS_LOOKING_CODE +// SJM NOTE: This code doesn't look right. SPD values are an order of magnitude smaller +// than the clock period of the memory controller. Also, no other northbridge +// looks at SPD_CMD_SIGNAL_INPUT_HOLD_TIME. + + // Switch to 2 clocks for address/command if required by any one of the DIMMs + // NOTE: At 133 MHz, 1 clock == 7.52 ns + value = + spd_read_byte(dimm_socket_address, + SPD_CMD_SIGNAL_INPUT_HOLD_TIME); + die_on_spd_error(value); + if (value >= 0xa0) { /* At 133MHz this constant should be 0x75 */ + controller_mode &= ~(1 << 16); /* Use two clock cyles instead of one */ + } +#endif + + /* go to the next DIMM */ + } + + controller_mode |= (system_refresh_mode << 8); + + // Configure the E7501 + pci_write_config32(PCI_DEV(0, 0, 0), DRC, controller_mode); +} + +/** + * Configure the E7501's DRAM Row Attributes (DRA) registers based on DIMM + * parameters read via SPD. This tells the controller the width of the SDRAM + * chips on each DIMM side (x4 or x8) and the page size of each DIMM side + * (4, 8, 16, or 32 KB). + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + * @param dimm_mask Bitmask of populated DIMMs, spd_get_supported_dimms(). + */ +static void configure_e7501_row_attributes(const struct mem_controller + *ctrl, uint8_t dimm_mask) +{ + int i; + uint32_t row_attributes = 0; + + for (i = 0; i < MAX_DIMM_SOCKETS_PER_CHANNEL; i++) { + + uint16_t dimm_socket_address = ctrl->channel0[i]; + struct dimm_size page_size; + struct dimm_size sdram_width; + + if (!(dimm_mask & (1 << i))) + continue; // This DIMM not usable + + // Get the relevant parameters via SPD + page_size = sdram_spd_get_page_size(dimm_socket_address); + sdram_width = sdram_spd_get_width(dimm_socket_address); + + // Update the DRAM Row Attributes. + // Page size is encoded as log2(page size in bits) - log2(8 Kb) + // NOTE: 8 Kb = 2^13 + row_attributes |= (page_size.side1 - 13) << (i << 3); // Side 1 of each DIMM is an EVEN row + + if (sdram_width.side2 > 0) + row_attributes |= (page_size.side2 - 13) << ((i << 3) + 4); // Side 2 is ODD + + // Set x4 flags if appropriate + if (sdram_width.side1 == 4) { + row_attributes |= 0x08 << (i << 3); + } + + if (sdram_width.side2 == 4) { + row_attributes |= 0x08 << ((i << 3) + 4); + } + + /* go to the next DIMM */ + } + + /* Write the new row attributes register */ + pci_write_config32(PCI_DEV(0, 0, 0), DRA, row_attributes); +} + +/* + * Enable clock signals for populated DIMM sockets and disable them for + * unpopulated sockets (to reduce EMI). + * + * @param dimm_mask Bitmask of populated DIMMs, see spd_get_supported_dimms(). + */ +static void enable_e7501_clocks(uint8_t dimm_mask) +{ + int i; + uint8_t clock_disable = pci_read_config8(PCI_DEV(0, 0, 0), CKDIS); + + pci_write_config8(PCI_DEV(0,0,0), 0x8e, 0xb0); + + for (i = 0; i < MAX_DIMM_SOCKETS_PER_CHANNEL; i++) { + + uint8_t socket_mask = 1 << i; + + if (dimm_mask & socket_mask) + clock_disable &= ~socket_mask; // DIMM present, enable clock + else + clock_disable |= socket_mask; // DIMM absent, disable clock + } + + pci_write_config8(PCI_DEV(0, 0, 0), CKDIS, clock_disable); +} + +/* DIMM-dedependent configuration functions */ + +/** + * DDR Receive FIFO RE-Sync (?) + */ +static void RAM_RESET_DDR_PTR(void) +{ + uint8_t byte; + byte = pci_read_config8(PCI_DEV(0, 0, 0), 0x88); + byte |= (1 << 4); + pci_write_config8(PCI_DEV(0, 0, 0), 0x88, byte); + + byte = pci_read_config8(PCI_DEV(0, 0, 0), 0x88); + byte &= ~(1 << 4); + pci_write_config8(PCI_DEV(0, 0, 0), 0x88, byte); +} + +/** + * Set E7501 registers that are either independent of DIMM specifics, or + * establish default settings that will be overridden when we learn the + * specifics. + * + * This sets PCI configuration registers to known good values based on the + * table 'constant_register_values', which are a triple of configuration + * register offset, mask, and bits to set. + */ +static void ram_set_d0f0_regs(void) +{ + int i; + int num_values = ARRAY_SIZE(constant_register_values); + + ASSERT((num_values % 3) == 0); // Bad table? + + for (i = 0; i < num_values; i += 3) { + + uint32_t register_offset = constant_register_values[i]; + uint32_t bits_to_mask = constant_register_values[i + 1]; + uint32_t bits_to_set = constant_register_values[i + 2]; + uint32_t register_value; + + // It's theoretically possible to set values for something other than D0:F0, + // but it's not typically done here + ASSERT(!(register_offset & 0xFFFFFF00)); + + // bits_to_mask and bits_to_set should not reference the same bits + // Again, not strictly an error, but flagged as a potential bug + ASSERT((bits_to_mask & bits_to_set) == 0); + + register_value = + pci_read_config32(PCI_DEV(0, 0, 0), register_offset); + register_value &= bits_to_mask; + register_value |= bits_to_set; + + pci_write_config32(PCI_DEV(0, 0, 0), register_offset, + register_value); + } +} + +/** + * Copy 64 bytes from one location to another. + * + * @param src_addr TODO + * @param dst_addr TODO + */ +static void write_8dwords(const uint32_t *src_addr, uint32_t dst_addr) +{ + int i; + for (i = 0; i < 8; i++) { + write32(dst_addr, *src_addr); + src_addr++; + dst_addr += sizeof(uint32_t); + } +} + +/** + * Set the E7501's (undocumented) RCOMP registers. + * + * Per the 855PM datasheet and IXP2800 HW Initialization Reference Manual, + * RCOMP registers appear to affect drive strength, pullup/pulldown offset, + * and slew rate of various signal groups. + * + * Comments below are conjecture based on apparent similarity between the + * E7501 and these two chips. + */ +static void ram_set_rcomp_regs(void) +{ + uint32_t dword; + uint8_t maybe_strength_control, revision; + + RAM_DEBUG_MESSAGE("Setting RCOMP registers.\n"); + + /*enable access to the rcomp bar */ + dword = pci_read_config32(PCI_DEV(0, 0, 0), MAYBE_MCHTST); + dword |= (1 << 22); + pci_write_config32(PCI_DEV(0, 0, 0), MAYBE_MCHTST, dword); + + // Set the RCOMP MMIO base address + pci_write_config32(PCI_DEV(0, 0, 0), MAYBE_SMRBASE, RCOMP_MMIO); + + // Block RCOMP updates while we configure the registers + dword = read32(RCOMP_MMIO + MAYBE_SMRCTL); + dword |= (1 << 9); + write32(RCOMP_MMIO + MAYBE_SMRCTL, dword); + + /* Begin to write the RCOMP registers */ + write8(RCOMP_MMIO + 0x2c, 0x0); + + // Set CMD and DQ/DQS strength to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_DQCMDSTR) & 0x88; + maybe_strength_control |= 0x40; + write8(RCOMP_MMIO + MAYBE_DQCMDSTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0x80); + write16(RCOMP_MMIO + 0x42, 0); + + // Set CMD and DQ/DQS strength to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_DQCMDSTR) & 0xF8; + maybe_strength_control |= 0x04; + write8(RCOMP_MMIO + MAYBE_DQCMDSTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0x60); + write16(RCOMP_MMIO + 0x40, 0); + + // Set RCVEnOut# strength to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_RCVENSTR) & 0xF8; + maybe_strength_control |= 0x04; + write8(RCOMP_MMIO + MAYBE_RCVENSTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0x1c0); + write16(RCOMP_MMIO + 0x50, 0); + + // Set CS# strength for x4 SDRAM to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_CSBSTR) & 0x88; + maybe_strength_control |= 0x04; + write8(RCOMP_MMIO + MAYBE_CSBSTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0x140); + write16(RCOMP_MMIO + 0x48, 0); + + // Set CS# strength for x4 SDRAM to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_CSBSTR) & 0x8F; + maybe_strength_control |= 0x40; + write8(RCOMP_MMIO + MAYBE_CSBSTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0x160); + write16(RCOMP_MMIO + 0x4a, 0); + + // Set CKE strength for x4 SDRAM to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_CKESTR) & 0x88; + maybe_strength_control |= 0x04; + write8(RCOMP_MMIO + MAYBE_CKESTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0xa0); + write16(RCOMP_MMIO + 0x44, 0); + + // Set CKE strength for x4 SDRAM to 2x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_CKESTR) & 0x8F; + maybe_strength_control |= 0x40; + write8(RCOMP_MMIO + MAYBE_CKESTR, maybe_strength_control); + write_8dwords(maybe_2x_slew_table, RCOMP_MMIO + 0xc0); + write16(RCOMP_MMIO + 0x46, 0); + + // Set CK strength for x4 SDRAM to 1x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_CKSTR) & 0x88; + maybe_strength_control |= 0x01; + write8(RCOMP_MMIO + MAYBE_CKSTR, maybe_strength_control); + write_8dwords(maybe_pull_updown_offset_table, RCOMP_MMIO + 0x180); + write16(RCOMP_MMIO + 0x4c, 0); + + // Set CK strength for x4 SDRAM to 1x (?) + maybe_strength_control = read8(RCOMP_MMIO + MAYBE_CKSTR) & 0x8F; + maybe_strength_control |= 0x10; + write8(RCOMP_MMIO + MAYBE_CKSTR, maybe_strength_control); + write_8dwords(maybe_pull_updown_offset_table, RCOMP_MMIO + 0x1a0); + write16(RCOMP_MMIO + 0x4e, 0); + + + dword = read32(RCOMP_MMIO + 0x400); + dword &= 0x7f7fffff; + write32(RCOMP_MMIO + 0x400, dword); + + dword = read32(RCOMP_MMIO + 0x408); + dword &= 0x7f7fffff; + write32(RCOMP_MMIO + 0x408, dword); + + ram_handle_d060_1(); + + dword = pci_read_config32(PCI_DEV(0,0,0), MAYBE_MCHTST); + dword &= 0x3fffffff; + pci_write_config32(PCI_DEV(0,0,0), MAYBE_MCHTST, dword); + + revision = pci_read_config8(PCI_DEV(0,0,0), 0x08); + if (revision >= 3) { + dword = read32(RCOMP_MMIO + MAYBE_SMRCTL); + dword &= ~0x100; + write32(RCOMP_MMIO + MAYBE_SMRCTL, dword); + dword = read32(RCOMP_MMIO + MAYBE_SMRCTL); + dword |= 0x500; + write32(RCOMP_MMIO + MAYBE_SMRCTL, dword); + } + dword = read32(RCOMP_MMIO + MAYBE_SMRCTL); + dword &= ~0x203; + dword |= 0x401; + write32(RCOMP_MMIO + MAYBE_SMRCTL, dword); + + /* Wait 40 usec */ + SLOW_DOWN_IO; + + // Clear the RCOMP MMIO base address + pci_write_config32(PCI_DEV(0, 0, 0), MAYBE_SMRBASE, 0); + /*disable access to the rcomp bar */ + dword = pci_read_config32(PCI_DEV(0, 0, 0), MAYBE_MCHTST); + dword &= ~(1 << 22); + pci_write_config32(PCI_DEV(0, 0, 0), MAYBE_MCHTST, dword); + +} + +/*----------------------------------------------------------------------------- +Public interface: +-----------------------------------------------------------------------------*/ + +/** + * Go through the JEDEC initialization sequence for all DIMMs, then enable + * refresh and initialize ECC and memory to zero. Upon exit, SDRAM is up + * and running. + * + * @param controllers Not used. + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + */ +static void sdram_enable(int controllers, + const struct mem_controller *ctrl) +{ + uint8_t dimm_mask = pci_read_config16(PCI_DEV(0, 0, 0), SKPD); + uint32_t dram_controller_mode; + + if (dimm_mask == 0) + return; + + /* 1 & 2 Power up and start clocks */ + RAM_DEBUG_MESSAGE("Ram Enable 1\n"); + RAM_DEBUG_MESSAGE("Ram Enable 2\n"); + + /* A 200us delay is needed */ + DO_DELAY; EXTRA_DELAY; + + /* 3. Apply NOP */ + RAM_DEBUG_MESSAGE("Ram Enable 3\n"); + do_ram_command(RAM_COMMAND_NOP, 0); + EXTRA_DELAY; + + /* 4 Precharge all */ + RAM_DEBUG_MESSAGE("Ram Enable 4\n"); + do_ram_command(RAM_COMMAND_PRECHARGE, 0); + EXTRA_DELAY; + /* wait until the all banks idle state... */ + + /* 5. Issue EMRS to enable DLL */ + RAM_DEBUG_MESSAGE("Ram Enable 5\n"); + do_ram_command(RAM_COMMAND_EMRS, + SDRAM_EXTMODE_DLL_ENABLE | + SDRAM_EXTMODE_DRIVE_NORMAL); + EXTRA_DELAY; + + /* 6. Reset DLL */ + RAM_DEBUG_MESSAGE("Ram Enable 6\n"); + set_ram_mode(E7501_SDRAM_MODE | SDRAM_MODE_DLL_RESET); + EXTRA_DELAY; + /* Ensure a 200us delay between the DLL reset in step 6 and the final + * mode register set in step 9. + * Infineon needs this before any other command is sent to the ram. + */ + DO_DELAY; EXTRA_DELAY; + + /* 7 Precharge all */ + RAM_DEBUG_MESSAGE("Ram Enable 7\n"); + do_ram_command(RAM_COMMAND_PRECHARGE, 0); + EXTRA_DELAY; + + /* 8 Now we need 2 AUTO REFRESH / CBR cycles to be performed */ + RAM_DEBUG_MESSAGE("Ram Enable 8\n"); + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + + /* And for good luck 6 more CBRs */ + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + do_ram_command(RAM_COMMAND_CBR, 0); + EXTRA_DELAY; + + /* 9 mode register set */ + RAM_DEBUG_MESSAGE("Ram Enable 9\n"); + set_ram_mode(E7501_SDRAM_MODE | SDRAM_MODE_NORMAL); + EXTRA_DELAY; + + /* 10 DDR Receive FIFO RE-Sync */ + RAM_DEBUG_MESSAGE("Ram Enable 10\n"); + RAM_RESET_DDR_PTR(); + EXTRA_DELAY; + + /* 11 normal operation */ + RAM_DEBUG_MESSAGE("Ram Enable 11\n"); + do_ram_command(RAM_COMMAND_NORMAL, 0); + EXTRA_DELAY; + + // Reconfigure the row boundaries and Top of Low Memory + // to match the true size of the DIMMs + configure_e7501_ram_addresses(ctrl, dimm_mask); + + /* Finally enable refresh */ + dram_controller_mode = pci_read_config32(PCI_DEV(0, 0, 0), DRC); + dram_controller_mode |= (1 << 29); + pci_write_config32(PCI_DEV(0, 0, 0), DRC, dram_controller_mode); + EXTRA_DELAY; + initialize_ecc(); + + dram_controller_mode = pci_read_config32(PCI_DEV(0, 0, 0), DRC); /* FCS_EN */ + dram_controller_mode |= (1 << 17); // NOTE: undocumented reserved bit + pci_write_config32(PCI_DEV(0, 0, 0), DRC, dram_controller_mode); + + RAM_DEBUG_MESSAGE("Northbridge following SDRAM init:\n"); + DUMPNORTH(); +} + +/** + * Configure SDRAM controller parameters that depend on characteristics of the + * DIMMs installed in the system. These characteristics are read from the + * DIMMs via the standard Serial Presence Detect (SPD) interface. + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + */ +static void sdram_set_spd_registers(const struct mem_controller *ctrl) +{ + uint8_t dimm_mask; + + RAM_DEBUG_MESSAGE("Reading SPD data...\n"); + + dimm_mask = spd_get_supported_dimms(ctrl); + + if (dimm_mask == 0) { + print_debug("No usable memory for this controller\n"); + } else { + enable_e7501_clocks(dimm_mask); + + RAM_DEBUG_MESSAGE("setting based on SPD data...\n"); + + configure_e7501_row_attributes(ctrl, dimm_mask); + configure_e7501_dram_controller_mode(ctrl, dimm_mask); + configure_e7501_cas_latency(ctrl, dimm_mask); + RAM_RESET_DDR_PTR(); + + configure_e7501_dram_timing(ctrl, dimm_mask); + DO_DELAY; + RAM_DEBUG_MESSAGE("done\n"); + } + + /* NOTE: configure_e7501_ram_addresses() is NOT called here. + * We want to keep the default 64 MB/row mapping until sdram_enable() is called, + * even though the default mapping is almost certainly incorrect. + * The default mapping makes it easy to initialize all of the DIMMs + * even if the total system memory is > 4 GB. + * + * Save the dimm_mask for when sdram_enable is called, so it can call + * configure_e7501_ram_addresses() without having to regenerate the bitmask + * of usable DIMMs. + */ + pci_write_config16(PCI_DEV(0, 0, 0), SKPD, dimm_mask); +} + +/** + * Do basic RAM setup that does NOT depend on serial presence detect + * information (i.e. independent of DIMM specifics). + * + * @param ctrl PCI addresses of memory controller functions, and SMBus + * addresses of DIMM slots on the mainboard. + */ +static void sdram_set_registers(const struct mem_controller *ctrl) +{ + RAM_DEBUG_MESSAGE("Northbridge prior to SDRAM init:\n"); + DUMPNORTH(); + + ram_set_rcomp_regs(); + ram_set_d0f0_regs(); + ram_handle_d060_2(); +} + diff --git a/src/northbridge/intel/e7505/raminit.h b/src/northbridge/intel/e7505/raminit.h new file mode 100644 index 0000000..df0e929 --- /dev/null +++ b/src/northbridge/intel/e7505/raminit.h @@ -0,0 +1,22 @@ +#ifndef RAMINIT_H +#define RAMINIT_H + +#define MAX_DIMM_SOCKETS_PER_CHANNEL 4 +#define MAX_NUM_CHANNELS 2 +#define MAX_DIMM_SOCKETS (MAX_NUM_CHANNELS * MAX_DIMM_SOCKETS_PER_CHANNEL) + +struct mem_controller { + device_t d0, d0f1; // PCI bus/device/fcns of E7501 memory controller + + // SMBus addresses of DIMM slots for each channel, + // in order from closest to MCH to furthest away + // 0 == not present + uint16_t channel0[MAX_DIMM_SOCKETS_PER_CHANNEL]; + uint16_t channel1[MAX_DIMM_SOCKETS_PER_CHANNEL]; +}; + +#ifndef __ROMCC__ +void sdram_initialize(int controllers, const struct mem_controller *ctrl); +#endif + +#endif /* RAMINIT_H */ diff --git a/src/northbridge/intel/e7505/reset_test.c b/src/northbridge/intel/e7505/reset_test.c new file mode 100644 index 0000000..1c0dad5 --- /dev/null +++ b/src/northbridge/intel/e7505/reset_test.c @@ -0,0 +1,18 @@ +/* Convert to C by yhlu */ +#define MCH_DRC 0x7c +#define DRC_DONE (1 << 29) + /* If I have already booted once skip a bunch of initialization */ + /* To see if I have already booted I check to see if memory + * has been enabled. + */ +static int bios_reset_detected(void) { + uint32_t dword; + + dword = pci_read_config32(PCI_DEV(0, 0, 0), MCH_DRC); + + if( (dword & DRC_DONE) != 0 ) { + return 1; + } + + return 0; +}

1 0

New patch to review for coreboot: 2fd39cf Add support for A-Open DXPL Plus-U motherboard
by Kyösti Mälkki 19 Oct '11

19 Oct '11

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/303 -gerrit commit 2fd39cf03540920ec73914a0f078251351312a12 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Mon Oct 17 18:08:13 2011 +0300 Add support for A-Open DXPL Plus-U motherboard This is an old (pre-2005) entry-level server mainboard. The code is adapted from mainboard/intel/xe7501devkit. Featured chips: - Dual socket604 - E7505 northbridge - 82801DB southbridge (with EHCI debug port) - 82870p2 PCI-X bridge - LPC47M102S-MC super-io - 512kB FWH flash (flashrom does the job well) What works: - Dual-Xeon P4/HT boot with microcode update - RAM: registered ECC DDR266 in dual-channel - PCI-X slot interrupts with ACPI and I/O apic - On-board PCI-X GbE and SCSI - ACPI power-off and wakeup with PME# Notes : - Current ACPI is more or less a mess - Interrupts do not route correctly with PIRQ - MP-table is not implemented - Issues with reboots remain (cold and warm) - Many superio devices are disabled by default - Audio codec is not investigated Change-Id: I02d18c83f485a09ada65dde03bcc86e9163f2011 Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/mainboard/Kconfig | 3 + src/mainboard/aopen/Kconfig | 17 ++ src/mainboard/aopen/dxplplusu/Kconfig | 56 +++++++ src/mainboard/aopen/dxplplusu/Makefile.inc | 1 + src/mainboard/aopen/dxplplusu/acpi/e7505_pri.asl | 71 +++++++++ src/mainboard/aopen/dxplplusu/acpi/e7505_sec.asl | 51 ++++++ src/mainboard/aopen/dxplplusu/acpi/i82801db.asl | 138 ++++++++++++++++ src/mainboard/aopen/dxplplusu/acpi/p64h2.asl | 72 +++++++++ src/mainboard/aopen/dxplplusu/acpi/power.asl | 73 +++++++++ src/mainboard/aopen/dxplplusu/acpi/scsi.asl | 20 +++ src/mainboard/aopen/dxplplusu/acpi/superio.asl | 181 ++++++++++++++++++++++ src/mainboard/aopen/dxplplusu/acpi_tables.c | 151 ++++++++++++++++++ src/mainboard/aopen/dxplplusu/bus.h | 16 ++ src/mainboard/aopen/dxplplusu/chip.h | 4 + src/mainboard/aopen/dxplplusu/cmos.layout | 55 +++++++ src/mainboard/aopen/dxplplusu/devicetree.cb | 69 ++++++++ src/mainboard/aopen/dxplplusu/dsdt.asl | 97 ++++++++++++ src/mainboard/aopen/dxplplusu/fadt.c | 166 ++++++++++++++++++++ src/mainboard/aopen/dxplplusu/failover.c | 48 ++++++ src/mainboard/aopen/dxplplusu/ioapic.h | 9 + src/mainboard/aopen/dxplplusu/irq_tables.c | 61 ++++++++ src/mainboard/aopen/dxplplusu/mainboard.c | 7 + src/mainboard/aopen/dxplplusu/romstage.c | 80 ++++++++++ 23 files changed, 1446 insertions(+), 0 deletions(-) diff --git a/src/mainboard/Kconfig b/src/mainboard/Kconfig index 13032a6..549962f 100644 --- a/src/mainboard/Kconfig +++ b/src/mainboard/Kconfig @@ -14,6 +14,8 @@ config VENDOR_ADVANTECH bool "Advantech" config VENDOR_AMD bool "AMD" +config VENDOR_AOPEN + bool "AOpen" config VENDOR_ARIMA bool "Arima" config VENDOR_ARTEC_GROUP @@ -131,6 +133,7 @@ source "src/mainboard/abit/Kconfig" source "src/mainboard/advansus/Kconfig" source "src/mainboard/advantech/Kconfig" source "src/mainboard/amd/Kconfig" +source "src/mainboard/aopen/Kconfig" source "src/mainboard/arima/Kconfig" source "src/mainboard/artecgroup/Kconfig" source "src/mainboard/asi/Kconfig" diff --git a/src/mainboard/aopen/Kconfig b/src/mainboard/aopen/Kconfig new file mode 100644 index 0000000..5b5497c --- /dev/null +++ b/src/mainboard/aopen/Kconfig @@ -0,0 +1,17 @@ +if VENDOR_AOPEN + +choice + prompt "Mainboard model" + +config BOARD_AOPEN_DXPLPLUSU + bool "DXPL Plus-U" + +endchoice + +source "src/mainboard/aopen/dxplplusu/Kconfig" + +config MAINBOARD_VENDOR + string + default "AOpen" + +endif # VENDOR_AOPEN diff --git a/src/mainboard/aopen/dxplplusu/Kconfig b/src/mainboard/aopen/dxplplusu/Kconfig new file mode 100644 index 0000000..f39771e --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/Kconfig @@ -0,0 +1,56 @@ +if BOARD_AOPEN_DXPLPLUSU + +config BOARD_SPECIFIC_OPTIONS # dummy + def_bool y + select ARCH_X86 + select CPU_INTEL_SOCKET_MPGA604 + select NORTHBRIDGE_INTEL_E7505 + select SOUTHBRIDGE_INTEL_I82870 + select SOUTHBRIDGE_INTEL_I82801DX + select SUPERIO_SMSC_LPC47M10X + select ROMCC + select HAVE_HARD_RESET + select HAVE_PIRQ_TABLE +# select PIRQ_ROUTE + select UDELAY_TSC +# select HAVE_OPTION_TABLE + select HAVE_ACPI_TABLES + select BOARD_ROMSIZE_KB_512 + +config MAINBOARD_DIR + string + default aopen/dxplplusu + +config MAINBOARD_PART_NUMBER + string + default "DXPL Plus-U" + +config IRQ_SLOT_COUNT + int + default 12 + +config BOARD_HAS_FADT + bool + default y + +config LOGICAL_CPUS + bool + default n + +config MAX_CPUS + int + default 4 + +config MAX_PHYSICAL_CPUS + int + default 2 + +config MAINBOARD_PCI_SUBSYSTEM_VENDOR_ID + hex + default 0x0 + +config MAINBOARD_PCI_SUBSYSTEM_DEVICE_ID + hex + default 0x0 + +endif # BOARD_AOPEN_DXPLPLUSU diff --git a/src/mainboard/aopen/dxplplusu/Makefile.inc b/src/mainboard/aopen/dxplplusu/Makefile.inc new file mode 100644 index 0000000..0f285cd --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/Makefile.inc @@ -0,0 +1 @@ +ROMCCFLAGS := -mcpu=p4 -O2 diff --git a/src/mainboard/aopen/dxplplusu/acpi/e7505_pri.asl b/src/mainboard/aopen/dxplplusu/acpi/e7505_pri.asl new file mode 100644 index 0000000..d01c20a --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/e7505_pri.asl @@ -0,0 +1,71 @@ + + + Device (MBRS) + { + Name (_HID, EisaId ("PNP0C01")) + Name (_UID, 0x01) + Name (MSBF, ResourceTemplate () + { + /* System memory */ + QWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Prefetchable, ReadWrite, + 0x0, 0x100000000, 0x100000000, 0x0, 0x0, ,, _Y1C, AddressRangeMemory, TypeStatic) + + /* Top Of Low Memory */ + Memory32 (ReadOnly, 0x0, 0x0, 0x1, 0x0, _Y1D) + + /* 640kB who wants more? */ + Memory32Fixed (ReadWrite, 0x0, 0xA0000, ) + + /* 64k BIOS bootblock */ + Memory32Fixed (ReadOnly, 0xF0000, 0x10000,) + + /* Memory hole below 16 MB */ + Memory32Fixed (ReadOnly, 0x100000, 0xF00000,) + /* Memory hole in 15-16 MB */ + /* Memory32Fixed (ReadOnly, 0x100000, 0xE00000,) */ + + + /* Local APIC */ + Memory32Fixed (ReadWrite, 0xFEE00000, 0x00001000,) + }) + + Method (_CRS, 0, NotSerialized) + { + CreateDWordField (MSBF, \_SB.MBRS._Y1C._MIN, MEML) + CreateDWordField (MSBF, \_SB.MBRS._Y1C._MAX, MEMM) + CreateDWordField (MSBF, \_SB.MBRS._Y1C._LEN, LELM) + CreateDWordField (MSBF, 0x2A, LEHM) + And (\_SB.PCI0.RLAR, 0x03FF, Local1) + Increment (Local1) + If (LGreater (Local1, 0x40)) + { + ShiftRight (Local1, 0x06, Local0) + ShiftLeft (Local1, 0x1A, Local1) + Subtract (Local0, 0x01, LEHM) + Store (Local1, LELM) + } + + + CreateDWordField (MSBF, \_SB.MBRS._Y1D._MIN, MS00) + CreateDWordField (MSBF, \_SB.MBRS._Y1D._MAX, MS01) + CreateDWordField (MSBF, \_SB.MBRS._Y1D._LEN, MEM2) + And (\_SB.PCI0.TOLM, 0xF800, Local1) + ShiftRight (Local1, 0x04, Local1) + Decrement (Local1) + If (LGreater (Local1, 0x10)) + { + Subtract (Local1, 0x0F, Local1) + Store (ShiftLeft (Local1, 0x14), MEM2) + Store (0x01000000, MS00) + Store (MS00, MS01) + } + + Return (MSBF) + } + + Method (_STA, 0, NotSerialized) + { + Return (0x0F) + } + } + diff --git a/src/mainboard/aopen/dxplplusu/acpi/e7505_sec.asl b/src/mainboard/aopen/dxplplusu/acpi/e7505_sec.asl new file mode 100644 index 0000000..a5442ed --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/e7505_sec.asl @@ -0,0 +1,51 @@ + + Name (PBRS, ResourceTemplate () + { + WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode, + 0x0000, 0x0000, 0x00FF, 0x0000, 0x0100, ,, ) + + /* System IO */ + WordIO (ResourceProducer, MinFixed, MaxFixed, PosDecode, EntireRange, + 0x0000, 0x0000, 0xFFFF, 0x0000, 0xFFFF, ,,, TypeStatic) + IO (Decode16, 0x0CF8, 0x0CF8, 0x08, 0x08, ) + + /* Video RAM */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, + 0x00000000, 0x000A0000, 0x000BFFFF, + 0x00000000, 0x00020000, ,,, AddressRangeMemory, TypeStatic) + + /* Video ROM */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, + 0x00000000, 0x000C0000, 0x000C7FFF, + 0x00000000, 0x00008000, ,,, AddressRangeMemory, TypeStatic) + + /* Option ROMs ? */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, + 0x00000000, 0x000C8000, 0x000DFFFF, + 0x00000000, 0x00018000, ,,, AddressRangeMemory, TypeStatic) + + /* Top Of Lowmemory to IOAPIC */ + DWordMemory (ResourceProducer, PosDecode, MinFixed, MaxFixed, Cacheable, ReadWrite, + 0x00000000, 0x02000000, 0xFEBFFFFF, + 0x00000000, 0xFCC00000, ,, _Y08, AddressRangeMemory, TypeStatic) + }) + + Method (_CRS, 0, NotSerialized) + { + + /* Top Of Lowmemory to IOAPIC */ + CreateDWordField (PBRS, \_SB.PCI0._Y08._MIN, MEML) + CreateDWordField (PBRS, \_SB.PCI0._Y08._LEN, LENM) + And (\_SB.PCI0.TOLM, 0xF800, Local1) + ShiftRight (Local1, 0x04, Local1) + ShiftLeft (Local1, 0x14, MEML) + Subtract (0xFEC00000, MEML, LENM) + + Return (PBRS) + } + + Method (_STA, 0, NotSerialized) + { + Return (0x0F) + } + diff --git a/src/mainboard/aopen/dxplplusu/acpi/i82801db.asl b/src/mainboard/aopen/dxplplusu/acpi/i82801db.asl new file mode 100644 index 0000000..fdf0101 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/i82801db.asl @@ -0,0 +1,138 @@ + + Device (USB0) { + Name (_ADR, 0x001D0000) + Name (_PRW, Package () { 0x03, 0x05 }) + + OperationRegion (USBS, PCI_Config, 0x00, 0x0100) + Field (USBS, ByteAcc, NoLock, Preserve) + { Offset (0xC4), URES, 8 } + } + + Device (USB1) { + Name (_ADR, 0x001D0001) + Name (_PRW, Package () { 0x04, 0x05 }) + OperationRegion (USBS, PCI_Config, 0x00, 0x0100) + Field (USBS, ByteAcc, NoLock, Preserve) + { Offset (0xC4), URES, 8 } + } + + Device (USB2) { + Name (_ADR, 0x001D0002) + Name (_PRW, Package () { 0x0C, 0x05 }) + OperationRegion (USBS, PCI_Config, 0x00, 0x0100) + Field (USBS, ByteAcc, NoLock, Preserve) + { Offset (0xC4), URES, 8 } + } + + Device (USB3) { + Name (_ADR, 0x001D0007) + Name (_PRW, Package () { 0x0D, 0x05 }) /* PME_B0_STS any 0:1d or 0:1f device */ + OperationRegion (USBS, PCI_Config, 0x00, 0x0100) + Field (USBS, ByteAcc, NoLock, Preserve) + { Offset (0xC4), URES, 8 } + } + + Device(PCI5) { + Name (_ADR, 0x001E0000) + Name (_PRW, Package () { 0x0B, 0x05 }) /* PME# _STS */ + Name (_PRT, Package() { + Package() { 0x0003ffff, 0, 0, 20 }, + Package() { 0x0003ffff, 1, 0, 21 }, + Package() { 0x0003ffff, 2, 0, 22 }, + Package() { 0x0003ffff, 3, 0, 23 }, + }) + } + + Device (ICH0) { + Name (_ADR, 0x001F0000) + + OperationRegion (D310, PCI_Config, 0x00, 0xFF) + Field (D310, ByteAcc, NoLock, Preserve) + { + Offset (0x40), PBAR, 16, + Offset (0x58), GBAR, 16, + } + + OperationRegion (ACPI, SystemIO, 0x0400, 0xC0) + Field (ACPI, ByteAcc, NoLock, Preserve) + { + Offset (0x00), PS1L,8, PS1H,8, PE1L,8, PE1H,8, + Offset (0x28), GS0L,8, GS0H,8, GSPL,8, GSPH,8, + Offset (0x2C), GE0L,8, GE0H,8, GEPL,8, GEPH,8, + Offset (0xB8), GPLV,8 + } + + Name (MSBF, ResourceTemplate () { + + /* IOAPIC 0 */ + Memory32Fixed (ReadWrite, 0xFEC00000, 0x00001000,) + + IO (Decode16, 0x0, 0x0, 0x80, 0x0, PMIO) + IO (Decode16, 0x0, 0x0, 0x40, 0x0, GPIO) + + /* 8254 legacy irq */ + IO (Decode16, 0x04D0, 0x04D0, 0x02, 0x02,) + + /* reset generator */ + IO (Decode16, 0x0092, 0x0092, 0x01, 0x01, ) + }) + + Method (_CRS, 0, NotSerialized) + { + CreateWordField (MSBF, \_SB_.PCI0.ICH0.PMIO._MIN, IOA1) + CreateWordField (MSBF, \_SB_.PCI0.ICH0.PMIO._MAX, IOA2) + CreateByteField (MSBF, \_SB_.PCI0.ICH0.PMIO._LEN, IOAL) + + Store (PBAR, Local0) + If ( Land(Local0, 0x01) ) { + And (Local0, 0xFFFE, Local0) + Store (Local0, IOA1) + Store (Local0, IOA2) + Store (0x80, IOAL) + } Else { + Store (0x00, IOAL) + } + + CreateWordField (MSBF, \_SB_.PCI0.ICH0.GPIO._MIN, IOS1) + CreateWordField (MSBF, \_SB_.PCI0.ICH0.GPIO._MAX, IOS2) + CreateByteField (MSBF, \_SB_.PCI0.ICH0.GPIO._LEN, IOSL) + + Store (GBAR, Local0) + If ( Land(Local0, 0x01) ) { + And (Local0, 0xFFFE, Local0) + Store (Local0, IOS1) + Store (Local0, IOS2) + Store (0x40, IOSL) + } Else { + Store (0x00, IOSL) + } + Return (MSBF) + } + + + + Device (FWH) { + Name (_HID, EisaId ("PNP0C02")) + Name (_UID, 0x01) + + Name (MSBG, ResourceTemplate () { + Memory32Fixed (ReadOnly, 0xFFF00000, 0x00080000,) + Memory32Fixed (ReadOnly, 0xFFF80000, 0x00080000,) + }) + + Method (_CRS, 0, NotSerialized) + { + Return (MSBG) + } + } + + Device (SMSC) { + Name (_HID, EisaId ("PNP0C02")) + Name (_UID, 0x02) + #include "acpi/superio.asl" + } + + } + + + diff --git a/src/mainboard/aopen/dxplplusu/acpi/p64h2.asl b/src/mainboard/aopen/dxplplusu/acpi/p64h2.asl new file mode 100644 index 0000000..914996d --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/p64h2.asl @@ -0,0 +1,72 @@ + + + /* bus 03 */ + + Device(PBIO) { + Name (_HID, "ACPI000A") + Name (_ADR, 0x001c0000) + } + + Device(P64B) { + Name (_ADR, 0x001d0000) + + Name (_PRT, Package() { + Package() { 0x0002ffff, 0, 0, 24 }, /* eth0 */ + Package() { 0x0002ffff, 1, 0, 25 }, /* eth1 */ + Package() { 0x0002ffff, 2, 0, 26 }, + Package() { 0x0002ffff, 3, 0, 27 }, + Package() { 0x0003ffff, 0, 0, 28 }, /* eth2 */ + Package() { 0x0003ffff, 1, 0, 29 }, /* eth3 */ + Package() { 0x0003ffff, 2, 0, 30 }, + Package() { 0x0003ffff, 3, 0, 31 }, + Package() { 0x0004ffff, 0, 0, 32 }, /* eth4 */ + }) + + Name (_PRW, Package () { 0x0B, 0x05 }) /* PME# _STS */ + OperationRegion (PBPC, PCI_Config, 0x00, 0xFF) + Field (PBPC, ByteAcc, NoLock, Preserve) + { Offset (0x3E), BCRL, 8, BCRH, 8 } + + + Device (ETH0) { + Name (_ADR, 0x00040000) + Name (_PRW, Package () { 0x0B, 0x05 }) /* PME# _STS */ + } + } + + + /* bus 04 */ + + Device(PAIO) { + Name (_HID, "ACPI000A") + Name (_ADR, 0x001e0000) + } + + Device(P64A) { + Name (_ADR, 0x001f0000) + Name (_PRT, Package() { + Package() { 0x0002ffff, 0, 0, 48 }, /* eth5 */ + Package() { 0x0002ffff, 1, 0, 49 }, /* eth6 */ + Package() { 0x0002ffff, 2, 0, 50 }, + Package() { 0x0002ffff, 3, 0, 51 }, + + Package() { 0x0003ffff, 0, 0, 52 }, + Package() { 0x0003ffff, 1, 0, 53 }, + Package() { 0x0003ffff, 2, 0, 54 }, /* ? */ + Package() { 0x0003ffff, 3, 0, 55 }, /* ? */ + + Package() { 0x0004ffff, 0, 0, 54 }, /* not 56 ?? */ + Package() { 0x0004ffff, 1, 0, 55 }, /* not 57 ?? */ + }) + + + Name (_PRW, Package () { 0x0B, 0x05 }) /* PME# _STS */ + OperationRegion (PBPC, PCI_Config, 0x00, 0xFF) + Field (PBPC, ByteAcc, NoLock, Preserve) + { Offset (0x3E), BCRL, 8, BCRH, 8 } + + #include "acpi/scsi.asl" + + } + + diff --git a/src/mainboard/aopen/dxplplusu/acpi/power.asl b/src/mainboard/aopen/dxplplusu/acpi/power.asl new file mode 100644 index 0000000..cbe38c2 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/power.asl @@ -0,0 +1,73 @@ + + + Name (\_S0, Package () { 0x00, 0x00, 0x00, 0x00 }) + Name (\_S1, Package () { 0x01, 0x01, 0x00, 0x00 }) + Name (\_S3, Package () { 0x05, 0x05, 0x00, 0x00 }) + Name (\_S4, Package () { 0x06, 0x06, 0x00, 0x00 }) + Name (\_S5, Package () { 0x07, 0x07, 0x00, 0x00 }) + + + Scope (\_GPE) + { + Method (_L03, 0, NotSerialized) + { + Notify (\_SB.PCI0.USB0, 0x02) + } + Method (_L04, 0, NotSerialized) + { + Notify (\_SB.PCI0.USB1, 0x02) + } + + /* WOL header */ + Method (_L08, 0, NotSerialized) + { + Notify (\_SB.PCI0.PCI5, 0x02) + Notify (\_SB.SLBT, 0x02) + } + + /* PME# */ + Method (_L0B, 0, NotSerialized) + { +#if 1 + Notify (\_SB.LID0, 0x02) +#else + Notify (\_SB.PCI0.HLIB.P64B.ETH0, 0x02) + Notify (\_SB.PCI0.HLIB.P64B, 0x02) + Notify (\_SB.PCI0.HLIB.P64A, 0x02) +#endif + } + Method (_L0C, 0, NotSerialized) + { + Notify (\_SB.PCI0.USB2, 0x02) + } + /* PME_B0_STS# */ + Method (_L0D, 0, NotSerialized) + { + Notify (\_SB.PCI0.USB3, 0x02) + } + + } + + /* clear power buttons */ + Method (\_INI, 0, NotSerialized) + { + Or (\_SB.PCI0.ICH0.PS1H, 0x09, \_SB.PCI0.ICH0.PS1H) + Or (\_SB.PCI0.ICH0.PE1H, 0x01, \_SB.PCI0.ICH0.PE1H) + } + + /* Prepare To Sleep */ + Method (\_PTS, 1, NotSerialized) + { + Or (\_SB.PCI0.ICH0.GS0H, 0x19, \_SB.PCI0.ICH0.GS0H) + Or (\_SB.PCI0.ICH0.GS0L, 0x11, \_SB.PCI0.ICH0.GS0L) + } + + /* System Wake */ + Method (\_WAK, 1, NotSerialized) + { + Or (\_SB.PCI0.ICH0.GS0H, 0x19, \_SB.PCI0.ICH0.GS0H) + Or (\_SB.PCI0.ICH0.GS0L, 0x11, \_SB.PCI0.ICH0.GS0L) + Return ( Package() { 0x0, 0x0 } ) + } + + diff --git a/src/mainboard/aopen/dxplplusu/acpi/scsi.asl b/src/mainboard/aopen/dxplplusu/acpi/scsi.asl new file mode 100644 index 0000000..528fe49 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/scsi.asl @@ -0,0 +1,20 @@ + Device (SCS0) { + Name (_ADR, 0x00040000) + OperationRegion (SCSC, PCI_Config, 0x00, 0x0100) + Field (SCSC, ByteAcc, NoLock, Preserve) { + Offset (0x2C), SID, 32, + Offset (0xE0), PMC, 8, + Offset (0xFF), IDW, 8 + } + } + + Device (SCS1) { + Name (_ADR, 0x00040001) + OperationRegion (SCSC, PCI_Config, 0x00, 0x0100) + Field (SCSC, ByteAcc, NoLock, Preserve) { + Offset (0x2C), SID, 32, + Offset (0xE0), PMC, 8, + Offset (0xFF), IDW, 8 + } + } + diff --git a/src/mainboard/aopen/dxplplusu/acpi/superio.asl b/src/mainboard/aopen/dxplplusu/acpi/superio.asl new file mode 100644 index 0000000..4b3d4bd --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi/superio.asl @@ -0,0 +1,181 @@ + + Name (MSBF, ResourceTemplate () { + IO (Decode16, + 0x0000, // Range Minimum + 0x0000, // Range Maximum + 0x01, // Alignment + 0x80, // Length + _Y1B) + }) + + OperationRegion (LPC0, SystemIO, 0x0E00, 0x60) + Field (LPC0, ByteAcc, NoLock, Preserve) + { + PME0, 8, + Offset (0x02), PME2, 8, + Offset (0x04), PME4, 8, + Offset (0x0A), PMEA, 8, + Offset (0x23), + GC10,8,GC11,8,GC12,8,GC13,8,GC14,8,GC15,8,GC16,8,GC17,8, + GC20,8,GC21,8,GC22,8,GC23,8,GC24,8,GC25,8,GC26,8,GC27,8, + GC30,8,GC31,8,GC32,8,GC33,8,GC34,8,GC35,8,GC36,8,GC37,8, + GC40,8,GC41,8,GC42,8,GC43,8, + Offset (0x3F), + GC50,8,GC51,8,GC52,8,GC53,8,GC54,8,GC55,8,GC56,8,GC57,8, + GC60,8,GC61,8, + Offset (0x4B), GP_1, 8, GP_2, 8, GP_3, 8, GP_4, 8, GP_5, 8, GP_6, 8, + Offset (0x56), FAN1, 8, + Offset (0x5D), LED1, 8, LED2, 8 + } + + OperationRegion (SMC1, SystemIO, 0x2E, 0x02) + Field (SMC1, ByteAcc, NoLock, Preserve) + { + INDX, 8, + DATA, 8 + } + + IndexField (INDX, DATA, ByteAcc, NoLock, Preserve) + { + Offset (0x07), + LDN, 8, + Offset (0x22), + PWRC, 8, + Offset (0x30), + ACTR, 8, + Offset (0x60), + IOAH, 8, + IOAL, 8, + IOBH, 8, + IOBL, 8, + Offset (0x70), + INTR, 8, + Offset (0x72), + INT1, 8, + Offset (0x74), + DMCH, 8, + Offset (0xB2), + SPS1, 8, + SPS2, 8, + Offset (0xB8), + D2TS, 8, + Offset (0xF0), + OPT1, 8, + OPT2, 8, + OPT3, 8, + Offset (0xF4), + WDTC, 8, + Offset (0xF6), + GP01, 8, + GP02, 8, + GP04, 8 + } + + Method (ECFG, 0, NotSerialized) + { + Store (0x55, INDX) + } + + Method (XCFG, 0, NotSerialized) + { + Store (0xAA, INDX) + } + + Method (_CRS, 0, NotSerialized) + { + + CreateWordField (MSBF, \_SB.PCI0.ICH0.SMSC._Y1B._MIN, IOM1) + CreateWordField (MSBF, \_SB.PCI0.ICH0.SMSC._Y1B._MAX, IOM2) + CreateByteField (MSBF, \_SB.PCI0.ICH0.SMSC._Y1B._LEN, IOML) + ECFG () + Store (0x0A, \_SB.PCI0.ICH0.SMSC.LDN) + Store (0x00, IOM1) + Store (0x00, IOM2) + Or (\_SB.PCI0.ICH0.SMSC.IOAH, IOM1, IOM1) + ShiftLeft (IOM1, 0x08, IOM1) + Or (\_SB.PCI0.ICH0.SMSC.IOAL, IOM1, IOM1) + Store (IOM1, IOM2) + If (LNotEqual (IOM1, 0x00)) + { + Store (0x80, IOML) + } + XCFG () + + Return (MSBF) + } + + + Method (_INI, 0, NotSerialized) { + + Store (0x00, GC10) + Store (0x81, GC11) + Store (0x00, GC17) + Store (0x0c, GC21) + Store (0x00, GC22) + Store (0x04, GC27) + Store (0x04, GC30) + Store (0x01, GC31) + Store (0x01, GC32) + Store (0x01, GC33) + Store (0x01, GC34) /* GPI pwd */ + Store (0x01, GC35) /* GPI scsi */ +#if 1 + Store (0x01, GC42) /* GPI */ +#else + Store (0x84, GC42) /* nIO_PME */ +#endif + Store (0x86, GC60) /* led 1 */ + Store (0x81, GC61) /* led 2 ?? */ + + Store (GP_1, Local0) + And( Local0, 0x7C, Local0) + Or ( Local0, 0x81, Local0) + Store (Local0, GP_1) + + Store (GP_2, Local0) + And( Local0, 0xFE, Local0) + Or ( Local0, 0x00, Local0) + Store (Local0, GP_2) + + Store (GP_3, Local0) + And( Local0, 0x7F, Local0) + Or ( Local0, 0x80, Local0) + Store (Local0, GP_3) + + Store (GP_4, Local0) + And( Local0, 0x7F, Local0) + Or ( Local0, 0x00, Local0) + Store (Local0, GP_4) + + /* Power Led */ + Store (LED1, Local0) + And( Local0, 0xfc, Local0) + Or ( Local0, 0x01, Local0) + Store (Local0, LED1) + + } + + Method (MLED, 1, NotSerialized) + { + If (LEqual (Arg0, 0x00)) + { + Store (0x00, LED1) + } + + If (LOr (LEqual (Arg0, 0x01), LEqual (Arg0, 0x02))) + { + Store (0x01, LED1) + } + + If (LEqual (Arg0, 0x03)) + { + Store (0x02, LED1) + } + + If (LOr (LEqual (Arg0, 0x04), LEqual (Arg0, 0x05))) + { + Store (0x03, LED1) + } + } + + diff --git a/src/mainboard/aopen/dxplplusu/acpi_tables.c b/src/mainboard/aopen/dxplplusu/acpi_tables.c new file mode 100644 index 0000000..7ef0bba --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi_tables.c @@ -0,0 +1,151 @@ +/* + * Ported to Intel XE7501DEVKIT from Agami Aruma + * written by Stefan Reinauer <stepan(a)openbios.org> + * (C) 2005 Stefan Reinauer + * (C) 2005 Digital Design Corporation + */ + +#include <console/console.h> +#include <string.h> +#include <arch/acpi.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <assert.h> +#include "bus.h" +#include "ioapic.h" + + +extern unsigned char AmlCode[]; + +unsigned long acpi_fill_mcfg(unsigned long current) +{ + /* Just a dummy */ + return current; +} + +unsigned long acpi_fill_slit(unsigned long current) +{ + // Not implemented + return current; +} + +unsigned long acpi_fill_srat(unsigned long current) +{ + // Not implemented + return current; +} + +unsigned long acpi_fill_madt(unsigned long current) +{ + unsigned int irq_start = 0; + device_t dev = 0; + struct resource* res = NULL; + + + // SJM: Hard-code CPU LAPIC entries for now + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 0, 0); + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 1, 6); + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 2, 1); + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 3, 7); + + // Southbridge IOAPIC + current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_ICH4, 0xfec00000, irq_start); + irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; + + // P64H2 Bus B IOAPIC + dev = dev_find_slot(PCI_BUS_E7501_HI_B, PCI_DEVFN(28, 0)); + if (!dev) + BUG(); // Config.lb error? + res = find_resource(dev, PCI_BASE_ADDRESS_0); + current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_P64H2_BUS_B, res->base, irq_start); + irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; + + // P64H2 Bus A IOAPIC + dev = dev_find_slot(PCI_BUS_E7501_HI_B, PCI_DEVFN(30, 0)); + if (!dev) + BUG(); // Config.lb error? + res = find_resource(dev, PCI_BASE_ADDRESS_0); + current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_P64H2_BUS_A, res->base, irq_start); + irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; + + + // Map ISA IRQ 0 to IRQ 2 + current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 1, 0, 2, 0); + + // IRQ9 differs from ISA standard - ours is active high, level-triggered + current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 0, 9, 9, 0xD); + + return current; +} + +#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10) +unsigned long write_acpi_tables(unsigned long start) +{ + unsigned long current; + acpi_rsdp_t *rsdp; + acpi_rsdt_t *rsdt; + acpi_madt_t *madt; + acpi_facs_t *facs; + acpi_fadt_t *fadt; + acpi_header_t *dsdt; + + current = start; + + /* Align ACPI tables to 16byte */ + ALIGN_CURRENT; + + printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start); + + /* We need at least an RSDP and an RSDT Table */ + rsdp = (acpi_rsdp_t *) current; + current += sizeof(acpi_rsdp_t); + ALIGN_CURRENT; + rsdt = (acpi_rsdt_t *) current; + current += sizeof(acpi_rsdt_t); + ALIGN_CURRENT; + + /* clear all table memory */ + memset((void *)start, 0, current - start); + + acpi_write_rsdp(rsdp, rsdt, NULL); + acpi_write_rsdt(rsdt); + + /* + * We explicitly add these tables later on: + */ + printk(BIOS_DEBUG, "ACPI: * MADT\n"); + madt = (acpi_madt_t *) current; + acpi_create_madt(madt); + current+=madt->header.length; + ALIGN_CURRENT; + acpi_add_table(rsdp,madt); + + printk(BIOS_DEBUG, "ACPI: * FACS\n"); + facs = (acpi_facs_t *) current; + current += sizeof(acpi_facs_t); + ALIGN_CURRENT; + acpi_create_facs(facs); + + printk(BIOS_DEBUG, "ACPI: * DSDT\n"); + dsdt = (acpi_header_t *)current; + memcpy(dsdt,(void *)AmlCode, sizeof(acpi_header_t)); + current += dsdt->length; + ALIGN_CURRENT; + memcpy(dsdt,(void *)AmlCode, dsdt->length); + + dsdt->checksum = 0; + dsdt->checksum = acpi_checksum((void *)dsdt,dsdt->length); + printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length); + + printk(BIOS_DEBUG, "ACPI: * FADT\n"); + fadt = (acpi_fadt_t *) current; + current += sizeof(acpi_fadt_t); + ALIGN_CURRENT; + + acpi_create_fadt(fadt,facs,dsdt); + acpi_add_table(rsdp,fadt); + + printk(BIOS_INFO, "ACPI: done.\n"); + return current; +} + diff --git a/src/mainboard/aopen/dxplplusu/bus.h b/src/mainboard/aopen/dxplplusu/bus.h new file mode 100644 index 0000000..870ab74 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/bus.h @@ -0,0 +1,16 @@ +#ifndef XE7501DEVKIT_BUS_H_INCLUDED +#define XE7501DEVKIT_BUS_H_INCLUDED + +// These were determined by seeing how coreboot enumerates the various +// PCI (and PCI-like) buses on the board. + +#define PCI_BUS_ROOT 0 +#define PCI_BUS_AGP 1 // AGP +#define PCI_BUS_E7501_HI_B 2 // P64H2#1 +#define PCI_BUS_P64H2_B 3 // P64H2#1 bus B +#define PCI_BUS_P64H2_A 4 // P64H2#1 bus A +#define PCI_BUS_ICH4 5 // ICH4 + +#define SUPERIO_BUS 8 // (arbitrary but unique bus #) + +#endif // XE7501DEVKIT_BUS_H_INCLUDED diff --git a/src/mainboard/aopen/dxplplusu/chip.h b/src/mainboard/aopen/dxplplusu/chip.h new file mode 100644 index 0000000..06f11d0 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/chip.h @@ -0,0 +1,4 @@ +extern struct chip_operations mainboard_ops; + +struct mainboard_config { +}; diff --git a/src/mainboard/aopen/dxplplusu/cmos.layout b/src/mainboard/aopen/dxplplusu/cmos.layout new file mode 100644 index 0000000..66b4d86 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/cmos.layout @@ -0,0 +1,55 @@ +# NOTE: This file must be in UNIX format (not DOS) or build_opt_tbl fails: +# "Error - Name is an invalid identifier in line" + +entries + +#start-bit length config config-ID name +0 512 r 0 reserved_memory1 # We know nothing about the factory BIOS +512 512 r 0 reserved_memory2 # More factory BIOS + +# Work in progress. +# This is where we would put the LB RTC_BOOT_BYTE options once the code +# supports finding them there. +#1024 1 e 4 boot_option +#1025 1 e 4 last_boot +#1026 1 e 1 ECC_memory +#1028 4 r 0 reboot_bits + +# Options used by XE7501DevKit +#1032 3 e 5 baud_rate +#1035 1 e 2 hyper_threading +#1036 1 e 1 power_on_after_fail +#1037 1 e 1 nmi + +#1040 4 e 6 debug_level + +#1048 16 h 0 check_sum + + + +enumerations + +#ID value text +1 0 Disable +1 1 Enable +2 0 Enable +2 1 Disable +4 0 Fallback +4 1 Normal +5 0 115200 +5 1 57600 +5 2 38400 +5 3 19200 +5 4 9600 +5 5 4800 +5 6 2400 +5 7 1200 +6 6 Notice +6 7 Info +6 8 Debug +6 9 Spew + +checksums + +# Checksum FROM bit-location TO bit-location STORE AT bit-location +checksum 1024 1047 1048 diff --git a/src/mainboard/aopen/dxplplusu/devicetree.cb b/src/mainboard/aopen/dxplplusu/devicetree.cb new file mode 100644 index 0000000..b3afe69 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/devicetree.cb @@ -0,0 +1,69 @@ +chip northbridge/intel/e7505 + device pci_domain 0 on + device pci 0.0 on end # Chipset host controller + device pci 0.1 on end # Host RASUM controller + device pci 2.0 on # Hub interface B + chip southbridge/intel/i82870 # P64H2 + device pci 1c.0 on end # IOAPIC - bus B + device pci 1d.0 on end # Hub to PCI-B bridge + device pci 1e.0 on end # IOAPIC - bus A + device pci 1f.0 on end # Hub to PCI-A bridge + end + end + device pci 4.0 off end # (undocumented) + device pci 6.0 off end # (undocumented) + chip southbridge/intel/i82801dx + device pci 1d.0 on end # USB UHCI + device pci 1d.1 on end # USB UHCI + device pci 1d.2 on end # USB UHCI + device pci 1d.7 on end # USB EHCI + device pci 1e.0 on # Hub to PCI bridge + device pci 2.0 off end + end + device pci 1f.0 on # LPC bridge + chip superio/smsc/lpc47m10x + device pnp 2e.0 off # Floppy + io 0x60 = 0x3f0 + irq 0x70 = 6 + drq 0x74 = 2 + end + device pnp 2e.3 off # Parallel Port + io 0x60 = 0x378 + irq 0x70 = 7 + end + device pnp 2e.4 on # Com1 + io 0x60 = 0x3f8 + irq 0x70 = 4 + end + device pnp 2e.5 off # Com2 + io 0x60 = 0x2f8 + irq 0x70 = 3 + end + device pnp 2e.7 off # Keyboard + io 0x60 = 0x60 + io 0x62 = 0x64 + irq 0x70 = 1 # Keyboard interrupt + irq 0x72 = 12 # Mouse interrupt + end + device pnp 2e.a on # ACPI + io 0x60 = 0x0e00 + end + end + end + device pci 1f.1 on end # IDE + device pci 1f.3 on end # SMBus + device pci 1f.5 on end # AC97 Audio + device pci 1f.6 off end # AC97 Modem + end # SB + end # PCI_DOMAIN + device lapic_cluster 0 on + chip cpu/intel/socket_mPGA604 + device lapic 0 on end +# device lapic 1 on end + end +# chip cpu/intel/socket_mPGA604 +# device lapic 6 on end +# device lapic 7 on end +# end + end +end diff --git a/src/mainboard/aopen/dxplplusu/dsdt.asl b/src/mainboard/aopen/dxplplusu/dsdt.asl new file mode 100644 index 0000000..1ffde87 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/dsdt.asl @@ -0,0 +1,97 @@ +/* This is a dummy dsdt. Normal ACPI requires a DSDT, but in this case, ACPI + is just a workaround for QNX. It would be nice to eventually have a real + dsdt here. + Note: It will not be hooked up at runtime. It won't even get linked. + But we still need this file. */ + +DefinitionBlock( + "dsdt.aml", + "DSDT", + 0x02, // DSDT revision: ACPI v2.0 + "COREv2", // OEM id + "COREBOOT", // OEM table id + 0x20090419 // OEM revision +) +{ + Scope(\_SB) { + + Device(PCI0) { + Name (_HID, EISAID("PNP0A03")) + Name (_ADR, 0x00) + Name (_PRT, Package() { + Package() { 0x001dffff, 0, 0, 16 }, + Package() { 0x001dffff, 1, 0, 19 }, + Package() { 0x001dffff, 2, 0, 18 }, + Package() { 0x001dffff, 3, 0, 23 }, + Package() { 0x001fffff, 0, 0, 18 }, + Package() { 0x001fffff, 1, 0, 17 }, + }) + + #include "acpi/e7505_sec.asl" + + OperationRegion (I750, PCI_Config, 0x00, 0x0100) + Field (I750, ByteAcc, NoLock, Preserve) + { + Offset (0xC4), + TOLM, 16, + RBAR, 16, + RLAR, 16 + } + } + #include "acpi/e7505_pri.asl" + + + Device (PWBT) + { + Name (_HID, EisaId ("PNP0C0C")) + Name (_PRW, Package () { 0x08, 0x05 }) + } + Device (SLBT) + { + Name (_HID, EisaId ("PNP0C0E")) + Name (_PRW, Package () { 0x0B, 0x05 }) + } + Device (LID0) + { + Name (_HID, EisaId ("PNP0C0D")) + Name (_PRW, Package () { 0x0B, 0x05 }) + } + + } + + Scope(\_SB.PCI0) { + + Device(PCI1) { + Name (_ADR, 0x00010000) + Name (_PRT, Package() { + Package() { 0x0000ffff, 0, 0, 16 }, + Package() { 0x0000ffff, 1, 0, 17 }, + }) + + } + + Device(HLIB) { + Name (_ADR, 0x00020000) + Name (_PRT, Package() { + Package() { 0x001dffff, 0, 0, 18 }, + Package() { 0x001dffff, 1, 0, 18 }, + Package() { 0x001dffff, 2, 0, 18 }, + Package() { 0x001dffff, 3, 0, 18 }, + Package() { 0x001fffff, 0, 0, 18 }, + Package() { 0x001fffff, 1, 0, 18 }, + Package() { 0x001fffff, 2, 0, 18 }, + Package() { 0x001fffff, 3, 0, 18 }, + }) + #include "acpi/p64h2.asl" + } + + #include "acpi/i82801db.asl" + + } + + #include "acpi/power.asl" + +} + + + diff --git a/src/mainboard/aopen/dxplplusu/fadt.c b/src/mainboard/aopen/dxplplusu/fadt.c new file mode 100644 index 0000000..1daf8e9 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/fadt.c @@ -0,0 +1,166 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <string.h> +#include <device/pci.h> +#include <arch/acpi.h> + +/* FIXME: This needs to go into a separate .h file + * to be included by the ich7 smi handler, ich7 smi init + * code and the mainboard fadt. + */ +#define APM_CNT 0x0 /* ACPI mode only */ +#define CST_CONTROL 0x85 +#define PST_CONTROL 0x0 +#define ACPI_DISABLE 0xAA +#define ACPI_ENABLE 0x55 +#define S4_BIOS 0x77 +#define GNVS_UPDATE 0xea + +void acpi_create_fadt(acpi_fadt_t * fadt, acpi_facs_t * facs, void *dsdt) +{ + acpi_header_t *header = &(fadt->header); + u16 pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f,0)), 0x40) & 0xfffe; + + memset((void *) fadt, 0, sizeof(acpi_fadt_t)); + memcpy(header->signature, "FACP", 4); + header->length = sizeof(acpi_fadt_t); + header->revision = 3; + memcpy(header->oem_id, "CORE ", 6); + memcpy(header->oem_table_id, "COREBOOT", 8); + memcpy(header->asl_compiler_id, "CORE", 4); + header->asl_compiler_revision = 1; + + fadt->firmware_ctrl = (unsigned long) facs; + fadt->dsdt = (unsigned long) dsdt; + fadt->model = 1; + fadt->preferred_pm_profile = 0; /* PM_MOBILE; */ + + fadt->sci_int = 0x9; + fadt->smi_cmd = APM_CNT; + fadt->acpi_enable = ACPI_ENABLE; + fadt->acpi_disable = ACPI_DISABLE; + fadt->s4bios_req = S4_BIOS; + fadt->pstate_cnt = PST_CONTROL; + + fadt->pm1a_evt_blk = pmbase; + fadt->pm1b_evt_blk = 0x0; + fadt->pm1a_cnt_blk = pmbase + 0x4; + fadt->pm1b_cnt_blk = 0x0; + fadt->pm2_cnt_blk = 0x0; + fadt->pm_tmr_blk = pmbase + 0x8; + fadt->gpe0_blk = pmbase + 0x28; + fadt->gpe1_blk = 0; + + fadt->pm1_evt_len = 4; + fadt->pm1_cnt_len = 2; + // XXX: pm2_cnt_len is probably wrong. find out right value (hint: it's != 0) + fadt->pm2_cnt_len = 0; + fadt->pm_tmr_len = 4; + fadt->gpe0_blk_len = 8; + fadt->gpe1_blk_len = 0; + fadt->gpe1_base = 0; + fadt->cst_cnt = 0; /* CST_CONTROL; */ + fadt->p_lvl2_lat = 1; + fadt->p_lvl3_lat = 85; + fadt->flush_size = 1024; + fadt->flush_stride = 16; + fadt->duty_offset = 1; + fadt->duty_width = 0; + fadt->day_alrm = 0xd; + fadt->mon_alrm = 0x00; + fadt->century = 0x00; + fadt->iapc_boot_arch = 0x03; + + fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | + ACPI_FADT_C2_MP_SUPPORTED | ACPI_FADT_SLEEP_BUTTON | + ACPI_FADT_S4_RTC_WAKE | ACPI_FADT_PLATFORM_CLOCK; + + fadt->reset_reg.space_id = 0; + fadt->reset_reg.bit_width = 0; + fadt->reset_reg.bit_offset = 0; + fadt->reset_reg.resv = 0; + fadt->reset_reg.addrl = 0x0; + fadt->reset_reg.addrh = 0x0; + + fadt->reset_value = 0; + fadt->x_firmware_ctl_l = (unsigned long)facs; + fadt->x_firmware_ctl_h = 0; + fadt->x_dsdt_l = (unsigned long)dsdt; + fadt->x_dsdt_h = 0; + + fadt->x_pm1a_evt_blk.space_id = 1; + fadt->x_pm1a_evt_blk.bit_width = 32; + fadt->x_pm1a_evt_blk.bit_offset = 0; + fadt->x_pm1a_evt_blk.resv = 0; + fadt->x_pm1a_evt_blk.addrl = pmbase; + fadt->x_pm1a_evt_blk.addrh = 0x0; + + fadt->x_pm1b_evt_blk.space_id = 1; + fadt->x_pm1b_evt_blk.bit_width = 0; + fadt->x_pm1b_evt_blk.bit_offset = 0; + fadt->x_pm1b_evt_blk.resv = 0; + fadt->x_pm1b_evt_blk.addrl = 0x0; + fadt->x_pm1b_evt_blk.addrh = 0x0; + + fadt->x_pm1a_cnt_blk.space_id = 1; + fadt->x_pm1a_cnt_blk.bit_width = 16; + fadt->x_pm1a_cnt_blk.bit_offset = 0; + fadt->x_pm1a_cnt_blk.resv = 0; + fadt->x_pm1a_cnt_blk.addrl = pmbase + 0x4; + fadt->x_pm1a_cnt_blk.addrh = 0x0; + + fadt->x_pm1b_cnt_blk.space_id = 1; + fadt->x_pm1b_cnt_blk.bit_width = 0; + fadt->x_pm1b_cnt_blk.bit_offset = 0; + fadt->x_pm1b_cnt_blk.resv = 0; + fadt->x_pm1b_cnt_blk.addrl = 0x0; + fadt->x_pm1b_cnt_blk.addrh = 0x0; + + fadt->x_pm2_cnt_blk.space_id = 1; + fadt->x_pm2_cnt_blk.bit_width = 0; + fadt->x_pm2_cnt_blk.bit_offset = 0; + fadt->x_pm2_cnt_blk.resv = 0; + fadt->x_pm2_cnt_blk.addrl = 0x0; + fadt->x_pm2_cnt_blk.addrh = 0x0; + + fadt->x_pm_tmr_blk.space_id = 1; + fadt->x_pm_tmr_blk.bit_width = 32; + fadt->x_pm_tmr_blk.bit_offset = 0; + fadt->x_pm_tmr_blk.resv = 0; + fadt->x_pm_tmr_blk.addrl = pmbase + 0x8; + fadt->x_pm_tmr_blk.addrh = 0x0; + + fadt->x_gpe0_blk.space_id = 1; + fadt->x_gpe0_blk.bit_width = 64; + fadt->x_gpe0_blk.bit_offset = 0; + fadt->x_gpe0_blk.resv = 0; + fadt->x_gpe0_blk.addrl = pmbase + 0x28; + fadt->x_gpe0_blk.addrh = 0x0; + + fadt->x_gpe1_blk.space_id = 1; + fadt->x_gpe1_blk.bit_width = 0; + fadt->x_gpe1_blk.bit_offset = 0; + fadt->x_gpe1_blk.resv = 0; + fadt->x_gpe1_blk.addrl = 0x0; + fadt->x_gpe1_blk.addrh = 0x0; + + header->checksum = + acpi_checksum((void *) fadt, header->length); +} diff --git a/src/mainboard/aopen/dxplplusu/failover.c b/src/mainboard/aopen/dxplplusu/failover.c new file mode 100644 index 0000000..cadcc0c --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/failover.c @@ -0,0 +1,48 @@ +#define ASSEMBLY 1 +#define __PRE_RAM__ +#include <stdint.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include <arch/io.h> +#include <arch/romcc_io.h> +#include <cpu/x86/lapic.h> +#include "pc80/mc146818rtc_early.c" +#include "southbridge/intel/i82801dx/cmos_failover.c" +#include "cpu/x86/lapic/boot_cpu.c" +#include "northbridge/intel/e7505/reset_test.c" + +static unsigned long main(unsigned long bist) +{ + /* Is this a deliberate reset by the bios */ + if (bios_reset_detected() && last_boot_normal()) { + goto normal_image; + } + /* This is the primary cpu how should I boot? */ + else { + + check_cmos_failed(); + + if (do_normal_boot()) { + goto normal_image; + } + else { + goto fallback_image; + } + } + normal_image: + asm volatile ("jmp __normal_image" + : /* outputs */ + : "a" (bist) /* inputs */ + : /* clobbers */ + ); +#if 0 + cpu_reset: + asm volatile ("jmp __cpu_reset" + : /* outputs */ + : "a"(bist) /* inputs */ + : /* clobbers */ + ); +#endif + fallback_image: + return bist; +} diff --git a/src/mainboard/aopen/dxplplusu/ioapic.h b/src/mainboard/aopen/dxplplusu/ioapic.h new file mode 100644 index 0000000..2f97f2a --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/ioapic.h @@ -0,0 +1,9 @@ +// IOAPIC addresses determined by coreboot enumeration. +// Someday add functions to get APIC IDs and versions from the chips themselves. + +#define IOAPIC_ICH4 2 +#define IOAPIC_P64H2_BUS_B 3 // IOAPIC 3 at 02:1c.0 MBAR = fe300000 DataAddr = fe300010 +#define IOAPIC_P64H2_BUS_A 4 // IOAPIC 4 at 02:1e.0 MBAR = fe301000 DataAddr = fe301010 + +#define P64H2_IOAPIC_VERSION 0x20 +#define INTEL_IOAPIC_NUM_INTERRUPTS 24 // Both ICH-4 and P64-H2 diff --git a/src/mainboard/aopen/dxplplusu/irq_tables.c b/src/mainboard/aopen/dxplplusu/irq_tables.c new file mode 100644 index 0000000..a66a3d6 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/irq_tables.c @@ -0,0 +1,61 @@ +/* Run checkpir to verify any changes to this table... + Documentation at : http://www.microsoft.com/whdc/archive/pciirq.mspx +*/ + +#include <arch/pirq_routing.h> +#include <device/pci_def.h> +#include <device/pci_ids.h> +#include "bus.h" + +#define UNUSED_INTERRUPT {0, 0} +#define PIRQ_A 0x60 +#define PIRQ_B 0x61 +#define PIRQ_C 0x62 +#define PIRQ_D 0x63 +#define PIRQ_E 0x68 +#define PIRQ_F 0x69 +#define PIRQ_G 0x6A +#define PIRQ_H 0x6B + +const struct irq_routing_table intel_irq_routing_table = { + PIRQ_SIGNATURE, + PIRQ_VERSION, + 32 + 16 * CONFIG_IRQ_SLOT_COUNT, // Size of this struct in bytes + 0, // PCI bus number on which the interrupt router resides + PCI_DEVFN(31, 0), // PCI device/function number of the interrupt router + 0, // PCI-exclusive IRQ bitmap + PCI_VENDOR_ID_INTEL, // Vendor ID of compatible PCI interrupt router + PCI_DEVICE_ID_INTEL_82801DB_LPC, // Device ID of compatible PCI interrupt router + 0, // Additional miniport information + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, // Reserved, must be zero + 0xB1, // Checksum of the entire structure (causes 8-bit sum == 0) + { + // NOTE: For 82801, a nonzero link value is a pointer to a PIRQ[n]_ROUT register in PCI configuration space + // This was determined from linux-2.6.11/arch/i386/pci/irq.c + // bitmap of 0xdcf8 == routable to IRQ3-IRQ7, IRQ10-IRQ12, or IRQ14-IRQ15 + // ICH-3 doesn't allow SERIRQ or PCI message to generate IRQ0, IRQ2, IRQ8, or IRQ13 + // Not sure why IRQ9 isn't routable (inherited from Tyan S2735) + + // INTA# INTB# INTC# INTD# + // bus, device # {link , bitmap}, {link , bitmap}, {link , bitmap}, {link , bitmap}, slot, rfu + + {PCI_BUS_ROOT, PCI_DEVFN(31, 0), {{PIRQ_C, 0xdcf8}, {PIRQ_B, 0xdcf8}, UNUSED_INTERRUPT, UNUSED_INTERRUPT}, 0, 0}, // IDE / SMBus + {PCI_BUS_ROOT, PCI_DEVFN(29, 0), {{PIRQ_A, 0xdcf8}, {PIRQ_D, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_H, 0xdcf8}}, 0, 0}, // USB 1.1 + + {PCI_BUS_P64H2_B, PCI_DEVFN(2, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, + {PCI_BUS_P64H2_B, PCI_DEVFN(3, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, + {PCI_BUS_P64H2_B, PCI_DEVFN(4, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, // GbE + + {PCI_BUS_P64H2_A, PCI_DEVFN(2, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, + {PCI_BUS_P64H2_A, PCI_DEVFN(3, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, + {PCI_BUS_P64H2_A, PCI_DEVFN(4, 0) , {{PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}, {PIRQ_C, 0xdcf8}}, 0, 0}, // SCSI + + {PCI_BUS_ICH4, PCI_DEVFN(3, 0), {{PIRQ_E, 0xdcf8}, {PIRQ_F, 0xdcf8}, {PIRQ_G, 0xdcf8}, {PIRQ_H, 0xdcf8}}, 0, 0}, // 32-bit slot + + } +}; + +unsigned long write_pirq_routing_table(unsigned long addr) +{ + return copy_pirq_routing_table(addr); +} diff --git a/src/mainboard/aopen/dxplplusu/mainboard.c b/src/mainboard/aopen/dxplplusu/mainboard.c new file mode 100644 index 0000000..2d41509 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/mainboard.c @@ -0,0 +1,7 @@ +#include <device/device.h> +#include "chip.h" + +struct chip_operations mainboard_ops = { + CHIP_NAME("AOpen DXPL Plus-U Mainboard") +}; + diff --git a/src/mainboard/aopen/dxplplusu/romstage.c b/src/mainboard/aopen/dxplplusu/romstage.c new file mode 100644 index 0000000..c8bb2dc --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/romstage.c @@ -0,0 +1,80 @@ +#include <stdint.h> +#include <device/pci_def.h> +#include <arch/io.h> +#include <device/pnp_def.h> +#include <arch/romcc_io.h> +#include <cpu/x86/lapic.h> +#include <arch/cpu.h> +#include <stdlib.h> +#include <pc80/mc146818rtc.h> +#include <console/console.h> + +#include "southbridge/intel/i82801dx/i82801dx.h" +#include "southbridge/intel/i82801dx/early_smbus.c" +#include "southbridge/intel/i82801dx/reset.c" +#include "northbridge/intel/e7505/raminit.h" +#include "northbridge/intel/e7505/debug.c" +#include "superio/smsc/lpc47m10x/early_serial.c" +#include "cpu/x86/lapic/boot_cpu.c" +#include "cpu/x86/mtrr/earlymtrr.c" +#include "cpu/x86/bist.h" +#include <spd.h> + +#define SERIAL_DEV PNP_DEV(0x2e, LPC47M10X2_SP1) + +static inline int spd_read_byte(unsigned device, unsigned address) +{ + return smbus_read_byte(device, address); +} + +#include "northbridge/intel/e7505/raminit.c" +#include "northbridge/intel/e7505/reset_test.c" +#include "lib/generic_sdram.c" +#include "lib/ramtest.c" + + +// This function MUST appear last (ROMCC limitation) +static void main(unsigned long bist) +{ + static const struct mem_controller memctrl[] = { + { + .d0 = PCI_DEV(0, 0, 0), + .d0f1 = PCI_DEV(0, 0, 1), + .channel0 = { 0x50, 0x52, 0, 0 }, + .channel1 = { 0x51, 0x53, 0, 0 }, + }, + }; + + if (bist == 0) { + // Skip this if there was a built in self test failure + early_mtrr_init(); + enable_lapic(); + } + + // Get the serial port running and print a welcome banner + lpc47m10x_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); +// uart_init(); + console_init(); + + // Halt if there was a built in self test failure + report_bist_failure(bist); + + // print_pci_devices(); + + // If this is a warm boot, some initialization can be skipped + if (!bios_reset_detected()) { + enable_smbus(); + // dump_spd_registers(&memctrl[0]); + // dump_smbus_registers(); + // memreset_setup(); No-op for this chipset + sdram_initialize(ARRAY_SIZE(memctrl), memctrl); + + ram_check(0x200000,0x800000); + } + + + // NOTE: ROMCC dies with an internal compiler error + // if the following line is removed. + print_debug("SDRAM is up.\r\n"); + +}

1 0

New patch to review for coreboot: 4a0c11d Cleaning i82801 LPC codes
by Kyösti Mälkki 19 Oct '11

19 Oct '11

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/302 -gerrit commit 4a0c11d943f63f76588deb17a1eef26a8d9b8f92 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Wed Oct 19 13:31:39 2011 +0300 Cleaning i82801 LPC codes Replace ioapic initialisation with global setup_ioapic() or setup_ioapic_NOVECTORS(). Unify handling of ACPI BARs. Change-Id: I8ad80fdd0913995471269f33293c4a4b8cf1de83 Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/southbridge/intel/i82801ax/lpc.c | 39 ++++++++------ src/southbridge/intel/i82801bx/lpc.c | 39 ++++++++------ src/southbridge/intel/i82801cx/lpc.c | 40 +++++--------- src/southbridge/intel/i82801dx/i82801dx.h | 1 + src/southbridge/intel/i82801dx/lpc.c | 46 +++++++++-------- src/southbridge/intel/i82801ex/i82801ex.h | 9 +++ src/southbridge/intel/i82801ex/lpc.c | 81 +++++++++++++++++++---------- src/southbridge/intel/i82801gx/i82801gx.h | 1 + src/southbridge/intel/i82801gx/lpc.c | 66 +++++++++++++---------- 9 files changed, 184 insertions(+), 138 deletions(-) diff --git a/src/southbridge/intel/i82801ax/lpc.c b/src/southbridge/intel/i82801ax/lpc.c index c9404ed..e1ab141 100644 --- a/src/southbridge/intel/i82801ax/lpc.c +++ b/src/southbridge/intel/i82801ax/lpc.c @@ -70,17 +70,30 @@ typedef struct southbridge_intel_i82801ax_config config_t; * Use the defined IRQ values above or set mainboard * specific IRQ values in your devicetree.cb. */ -static void i82801ax_enable_apic(struct device *dev) -{ - u32 reg32; - volatile u32 *ioapic_index = (volatile u32 *)IO_APIC_ADDR; - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); + +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801ax_enable_acpi(struct device *dev) +{ /* Set ACPI base address (I/O space). */ pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); /* Enable ACPI I/O range decode and ACPI power management. */ pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801ax_enable_ioapic(struct device *dev) +{ + u32 reg32; reg32 = pci_read_config32(dev, GEN_CNTL); reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ @@ -90,18 +103,7 @@ static void i82801ax_enable_apic(struct device *dev) pci_write_config32(dev, GEN_CNTL, reg32); printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", reg32); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - /* TODO: From i82801ca, needed/useful on other ICH? */ - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801ax_enable_serial_irqs(struct device *dev) @@ -219,8 +221,9 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801ax_enable_acpi(dev); /* IO APIC initialization. */ - i82801ax_enable_apic(dev); + i82801ax_enable_ioapic(dev); i82801ax_enable_serial_irqs(dev); diff --git a/src/southbridge/intel/i82801bx/lpc.c b/src/southbridge/intel/i82801bx/lpc.c index 0ff44e6..e2550d7 100644 --- a/src/southbridge/intel/i82801bx/lpc.c +++ b/src/southbridge/intel/i82801bx/lpc.c @@ -72,17 +72,29 @@ typedef struct southbridge_intel_i82801bx_config config_t; * Use the defined IRQ values above or set mainboard * specific IRQ values in your devicetree.cb. */ -static void i82801bx_enable_apic(struct device *dev) -{ - uint32_t reg32; - volatile uint32_t *ioapic_index = (volatile uint32_t *)IO_APIC_ADDR; - volatile uint32_t *ioapic_data = (volatile uint32_t *)(IO_APIC_ADDR + 0x10); +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801bx_enable_acpi(struct device *dev) +{ /* Set ACPI base address (I/O space). */ pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); /* Enable ACPI I/O range decode and ACPI power management. */ pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801bx_enable_ioapic(struct device *dev) +{ + u32 reg32; reg32 = pci_read_config32(dev, GEN_CNTL); reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ @@ -92,18 +104,7 @@ static void i82801bx_enable_apic(struct device *dev) pci_write_config32(dev, GEN_CNTL, reg32); printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", reg32); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - /* TODO: From i82801ca, needed/useful on other ICH? */ - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801bx_enable_serial_irqs(struct device *dev) @@ -237,8 +238,10 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801bx_enable_acpi(dev); + /* IO APIC initialization. */ - i82801bx_enable_apic(dev); + i82801bx_enable_ioapic(dev); i82801bx_enable_serial_irqs(dev); diff --git a/src/southbridge/intel/i82801cx/lpc.c b/src/southbridge/intel/i82801cx/lpc.c index a1ffb8f..5bce979 100644 --- a/src/southbridge/intel/i82801cx/lpc.c +++ b/src/southbridge/intel/i82801cx/lpc.c @@ -24,34 +24,24 @@ #define MAINBOARD_POWER_ON 1 -static void i82801cx_enable_ioapic( struct device *dev) +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801cx_enable_ioapic(struct device *dev) { - uint32_t dword; - volatile uint32_t* ioapic_index = (volatile uint32_t*)IO_APIC_ADDR; - volatile uint32_t* ioapic_data = (volatile uint32_t*)(IO_APIC_ADDR + 0x10); - - dword = pci_read_config32(dev, GEN_CNTL); - dword |= (3 << 7); /* enable ioapic & disable SMBus interrupts */ - dword |= (1 <<13); /* coprocessor error enable */ - dword |= (1 << 1); /* delay transaction enable */ - dword |= (1 << 2); /* DMA collection buf enable */ - pci_write_config32(dev, GEN_CNTL, dword); - printk(BIOS_DEBUG, "ioapic southbridge enabled %x\n",dword); - - // Must program the APIC's ID before using it - - *ioapic_index = 0; // Select APIC ID register - *ioapic_data = (2<<24); - - // Hang if the ID didn't take (chip not present?) - *ioapic_index = 0; - dword = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge apic id = %x\n", (dword>>24) & 0xF); - if(dword != (2<<24)) - die(""); - - *ioapic_index = 3; // Select Boot Configuration register - *ioapic_data = 1; // Use Processor System Bus to deliver interrupts + u32 reg32; + + reg32 = pci_read_config32(dev, GEN_CNTL); + reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 2); /* DMA collection buffer enable (DCB_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ + pci_write_config32(dev, GEN_CNTL, reg32); + printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); + + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } // This is how interrupts are received from the Super I/O chip diff --git a/src/southbridge/intel/i82801dx/i82801dx.h b/src/southbridge/intel/i82801dx/i82801dx.h index a38c793..2484eb1 100644 --- a/src/southbridge/intel/i82801dx/i82801dx.h +++ b/src/southbridge/intel/i82801dx/i82801dx.h @@ -86,6 +86,7 @@ extern void i82801dx_enable(device_t dev); #define PMBASE_ADDR 0x0400 #define DEFAULT_PMBASE PMBASE_ADDR #define ACPI_CNTL 0x44 +#define ACPI_EN (1 << 4) #define BIOS_CNTL 0x4E #define GPIO_BASE 0x58 #define GPIO_CNTL 0x5C diff --git a/src/southbridge/intel/i82801dx/lpc.c b/src/southbridge/intel/i82801dx/lpc.c index 768e700..eb05881 100644 --- a/src/southbridge/intel/i82801dx/lpc.c +++ b/src/southbridge/intel/i82801dx/lpc.c @@ -36,37 +36,38 @@ typedef struct southbridge_intel_i82801dx_config config_t; -static void i82801dx_enable_ioapic(struct device *dev) +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801dx_enable_acpi(struct device *dev) { - u32 reg32; - volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR); - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); - /* Set ACPI base address (I/O space). */ pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); - /* Enable ACPI I/O and power management. */ - pci_write_config8(dev, ACPI_CNTL, 0x10); + /* Enable ACPI I/O range decode and ACPI power management. */ + pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC control registers + */ +static void i82801dx_enable_ioapic(struct device *dev) +{ + u32 reg32; reg32 = pci_read_config32(dev, GEN_CNTL); - reg32 |= (3 << 7); /* Enable IOAPIC */ - reg32 |= (1 << 13); /* Coprocessor error enable */ - reg32 |= (1 << 1); /* Delayed transaction enable */ - reg32 |= (1 << 2); /* DMA collection buffer enable */ + reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 2); /* DMA collection buffer enable (DCB_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ pci_write_config32(dev, GEN_CNTL, reg32); printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", reg32); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801dx_enable_serial_irqs(struct device *dev) @@ -267,6 +268,7 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801dx_enable_acpi(dev); /* IO APIC initialization. */ i82801dx_enable_ioapic(dev); diff --git a/src/southbridge/intel/i82801ex/i82801ex.h b/src/southbridge/intel/i82801ex/i82801ex.h index 67fecdd..22a29f3 100644 --- a/src/southbridge/intel/i82801ex/i82801ex.h +++ b/src/southbridge/intel/i82801ex/i82801ex.h @@ -12,4 +12,13 @@ extern void i82801ex_enable(device_t dev); #define RTC_CONF 0xd8 #define GEN_PMCON_3 0xa4 + +#define PMBASE 0x40 +#define ACPI_CNTL 0x44 +#define ACPI_EN (1 << 4) +#define GPIO_BASE 0x58 +#define GPIO_CNTL 0x5C +#define GPIO_EN (1 << 4) + + #endif /* I82801EX_H */ diff --git a/src/southbridge/intel/i82801ex/lpc.c b/src/southbridge/intel/i82801ex/lpc.c index 998360c..c071ee9 100644 --- a/src/southbridge/intel/i82801ex/lpc.c +++ b/src/southbridge/intel/i82801ex/lpc.c @@ -12,8 +12,6 @@ #include <arch/ioapic.h> #include "i82801ex.h" -#define ACPI_BAR 0x40 -#define GPIO_BAR 0x58 #define NMI_OFF 0 #define MAINBOARD_POWER_OFF 0 @@ -23,6 +21,53 @@ #define CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON #endif +typedef struct southbridge_intel_i82801ex_config config_t; + +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801ex_enable_acpi(struct device *dev) +{ + u8 gpio_cntl; +#if 0 + /* many i82801's set pmbase here */ + /* Set ACPI base address (I/O space). */ + pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); +#endif + + /* Enable ACPI I/O range decode and ACPI power management. */ + pci_write_config8(dev, ACPI_CNTL, ACPI_EN); + + /* Enable the GPIO bar */ + gpio_cntl = pci_read_config8(dev, GPIO_CNTL); + gpio_cntl |= GPIO_EN; + pci_write_config8(dev, GPIO_CNTL, gpio_cntl); +} + +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC configuration registers + */ +static void i82801ex_enable_ioapic(struct device *dev) +{ + u32 reg32; + + reg32 = pci_read_config32(dev, GEN_CNTL); + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ + pci_write_config32(dev, GEN_CTL, reg32); + printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); + + reg32 = pci_read_config32(dev, GEN_STS); + reg32 |= (1<<1); + pci_write_config32(dev, GEN_STS, reg32); + + setup_ioapic(IO_APIC_ADDR, 0); /* Don't rename IO APIC ID. */ +} + #define SERIRQ_CNTL 0x64 static void i82801ex_enable_serial_irqs(device_t dev) { @@ -45,7 +90,6 @@ static void i82801ex_enable_lpc(device_t dev) pci_write_config8(dev, LPC_EN, 0x0d); } -typedef struct southbridge_intel_i82801ex_config config_t; static void set_i82801ex_gpio_use_sel( device_t dev, struct resource *res, config_t *config) @@ -193,7 +237,7 @@ static void i82801ex_gpio_init(device_t dev) /* Get the chip configuration */ config = dev->chip_info; /* Find the GPIO bar */ - res = find_resource(dev, GPIO_BAR); + res = find_resource(dev, GPIO_BASE); if (!res) { return; } @@ -239,18 +283,10 @@ static void enable_hpet(struct device *dev) static void lpc_init(struct device *dev) { uint8_t byte; - uint32_t value; int pwr_on=CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL; - /* IO APIC initialization */ - value = pci_read_config32(dev, 0xd0); - value |= (1 << 8)|(1<<7)|(1<<1); - pci_write_config32(dev, 0xd0, value); - value = pci_read_config32(dev, 0xd4); - value |= (1<<1); - pci_write_config32(dev, 0xd4, value); - setup_ioapic(IO_APIC_ADDR, 0); // Don't rename IO APIC ID. - + i82801ex_enable_ioapic(dev); + i82801ex_enable_serial_irqs(dev); i82801ex_pci_dma_cfg(dev); @@ -295,10 +331,10 @@ static void i82801ex_lpc_read_resources(device_t dev) pci_dev_read_resources(dev); /* Add the ACPI BAR */ - res = pci_get_resource(dev, ACPI_BAR); + res = pci_get_resource(dev, PMBASE); /* Add the GPIO BAR */ - res = pci_get_resource(dev, GPIO_BAR); + res = pci_get_resource(dev, GPIO_BASE); /* Add an extra subtractive resource for both memory and I/O. */ res = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); @@ -321,20 +357,11 @@ static void i82801ex_lpc_read_resources(device_t dev) static void i82801ex_lpc_enable_resources(device_t dev) { - uint8_t acpi_cntl, gpio_cntl; - /* Enable the normal pci resources */ pci_dev_enable_resources(dev); - /* Enable the ACPI bar */ - acpi_cntl = pci_read_config8(dev, 0x44); - acpi_cntl |= (1 << 4); - pci_write_config8(dev, 0x44, acpi_cntl); - - /* Enable the GPIO bar */ - gpio_cntl = pci_read_config8(dev, 0x5c); - gpio_cntl |= (1 << 4); - pci_write_config8(dev, 0x5c, gpio_cntl); + /* Enable ACPI and GPIO BARs */ + i82801ex_enable_acpi(dev); } static struct pci_operations lops_pci = { diff --git a/src/southbridge/intel/i82801gx/i82801gx.h b/src/southbridge/intel/i82801gx/i82801gx.h index 2ceb215..55fd883 100644 --- a/src/southbridge/intel/i82801gx/i82801gx.h +++ b/src/southbridge/intel/i82801gx/i82801gx.h @@ -82,6 +82,7 @@ void enable_usbdebug(unsigned int port); #define PMBASE 0x40 #define ACPI_CNTL 0x44 +#define ACPI_EN (1 << 7) /* NOTE: was 1<<4 until ICH7 */ #define BIOS_CNTL 0xDC #define GPIO_BASE 0x48 /* LPC GPIO Base Address Register */ #define GPIO_CNTL 0x4C /* LPC GPIO Control Register */ diff --git a/src/southbridge/intel/i82801gx/lpc.c b/src/southbridge/intel/i82801gx/lpc.c index ab3c915..c6c1b93 100644 --- a/src/southbridge/intel/i82801gx/lpc.c +++ b/src/southbridge/intel/i82801gx/lpc.c @@ -39,37 +39,45 @@ typedef struct southbridge_intel_i82801gx_config config_t; -static void i82801gx_enable_apic(struct device *dev) +/** + * enable_acpi(dev) + * + * @dev PCI device with ACPI and PM BAR's + */ +static void i82801gx_enable_acpi(struct device *dev) { - int i; - u32 reg32; - volatile u32 *ioapic_index = (volatile u32 *)(IO_APIC_ADDR); - volatile u32 *ioapic_data = (volatile u32 *)(IO_APIC_ADDR + 0x10); +#if 0 + /* many i82801's set pmbase here */ + /* Set ACPI base address (I/O space). */ + pci_write_config32(dev, PMBASE, (PMBASE_ADDR | 1)); +#endif - /* Enable ACPI I/O and power management. - * Set SCI IRQ to IRQ9 + /* Enable ACPI I/O range decode and ACPI power management. + * Select SCI IRQ as IRQ9. */ - pci_write_config8(dev, ACPI_CNTL, 0x80); - - *ioapic_index = 0; - *ioapic_data = (1 << 25); - - *ioapic_index = 0; - reg32 = *ioapic_data; - printk(BIOS_DEBUG, "Southbridge APIC ID = %x\n", (reg32 >> 24) & 0x0f); - if (reg32 != (1 << 25)) - die("APIC Error\n"); - - printk(BIOS_SPEW, "Dumping IOAPIC registers\n"); - for (i=0; i<3; i++) { - *ioapic_index = i; - printk(BIOS_SPEW, " reg 0x%04x:", i); - reg32 = *ioapic_data; - printk(BIOS_SPEW, " 0x%08x\n", reg32); - } + pci_write_config8(dev, ACPI_CNTL, ACPI_EN); +} - *ioapic_index = 3; /* Select Boot Configuration register. */ - *ioapic_data = 1; /* Use Processor System Bus to deliver interrupts. */ +/** + * enable_ioapic() + * + * @dev PCI device with I/O APIC configuration registers + */ +static void i82801gx_enable_ioapic(struct device *dev) +{ + u32 reg32; + + reg32 = pci_read_config32(dev, GEN_CNTL); +#if 0 + reg32 |= (1 << 13); /* Coprocessor error enable (COPR_ERR_EN) */ + reg32 |= (3 << 7); /* IOAPIC enable (APIC_EN) */ + reg32 |= (1 << 2); /* DMA collection buffer enable (DCB_EN) */ + reg32 |= (1 << 1); /* Delayed transaction enable (DTE) */ + pci_write_config32(dev, GEN_CNTL, reg32); +#endif + printk(BIOS_DEBUG, "IOAPIC Southbridge enabled %x\n", reg32); + + setup_ioapic_NOVECTORS(IO_APIC_ADDR, 0x02); } static void i82801gx_enable_serial_irqs(struct device *dev) @@ -417,8 +425,10 @@ static void lpc_init(struct device *dev) /* Set the value for PCI command register. */ pci_write_config16(dev, PCI_COMMAND, 0x000f); + i82801gx_enable_acpi(dev); + /* IO APIC initialization. */ - i82801gx_enable_apic(dev); + i82801gx_enable_ioapic(dev); i82801gx_enable_serial_irqs(dev);

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New patch to review for coreboot: 90271db IOAPIC: add setup_ioapic_NOVECTORS()
by Kyösti Mälkki 19 Oct '11

19 Oct '11

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/301 -gerrit commit 90271db8dce2ee33921eb2054daedd4a12beb1d6 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Wed Oct 19 07:10:54 2011 +0300 IOAPIC: add setup_ioapic_NOVECTORS() A little helper until we figure out if there is a reason not to call setup_ioapic() instead on many southbridge codes. Change-Id: Ia28036f2942efd382f20f27cf94117853f88cade Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/arch/x86/include/arch/ioapic.h | 1 + src/arch/x86/lib/ioapic.c | 9 +++++++++ 2 files changed, 10 insertions(+), 0 deletions(-) diff --git a/src/arch/x86/include/arch/ioapic.h b/src/arch/x86/include/arch/ioapic.h index 623f617..6b69063 100644 --- a/src/arch/x86/include/arch/ioapic.h +++ b/src/arch/x86/include/arch/ioapic.h @@ -40,5 +40,6 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id); void clear_ioapic(u32 ioapic_base); +void setup_ioapic_NOVECTORS(u32 ioapic_base, u8 new_id); #endif diff --git a/src/arch/x86/lib/ioapic.c b/src/arch/x86/lib/ioapic.c index 94f796b..dbbf781 100644 --- a/src/arch/x86/lib/ioapic.c +++ b/src/arch/x86/lib/ioapic.c @@ -209,3 +209,12 @@ void setup_ioapic(u32 ioapic_base, u8 new_id) load_vectors(ioapic_base, bsp_lapicid); } +void setup_ioapic_NOVECTORS(u32 ioapic_base, u8 new_id) +{ + printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n", + ioapic_base); + init_ioapic(ioapic_base, new_id, CONFIG_IOAPIC_DELIVERY_TYPE); + + printk(BIOS_CRIT, "IOAPIC: Interrupt Vectors were not initialized\n"); +} +

1 0

New patch to review for coreboot: e0518c2 Divide setup_ioapic() in two parts.
by Kyösti Mälkki 19 Oct '11

19 Oct '11

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/300 -gerrit commit e0518c23887e545eb9a8894aaeed4ffbb02ae9e5 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Wed Oct 19 01:29:03 2011 +0300 Divide setup_ioapic() in two parts. Currently some southbridge codes implement the init_ioapic() part locally and do not implement the load_vectors() part at all. I suspect that load_vectors() should always be called. I can push cleaned i82801 variants for testing. Revised init_ioapic() to log on a critical level if one tries to change an already assigned (non-zero) APIC ID, or when the APIC ID is not assigned. Change-Id: Ic5e860b9b669ecd1e9ddac4bbb92d80bdb9c2fca Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/arch/x86/lib/ioapic.c | 148 +++++++++++++++++++++++++++++++++------------ 1 files changed, 110 insertions(+), 38 deletions(-) diff --git a/src/arch/x86/lib/ioapic.c b/src/arch/x86/lib/ioapic.c index 3f64209..94f796b 100644 --- a/src/arch/x86/lib/ioapic.c +++ b/src/arch/x86/lib/ioapic.c @@ -34,6 +34,11 @@ static void io_apic_write(u32 ioapic_base, u32 reg, u32 value) write32(ioapic_base + 0x10, value); } +/** + * Clear all IOAPIC vectors. + * + * @ioapic_base IOAPIC base address + */ void clear_ioapic(u32 ioapic_base) { u32 low, high; @@ -64,24 +69,82 @@ void clear_ioapic(u32 ioapic_base) } } -void setup_ioapic(u32 ioapic_base, u8 ioapic_id) +/** + * Assign IOAPIC with an ID and set delivery type. + * + * @ioapic_base IOAPIC base address + * @new_id If non-zero (1-15), assign new apic ID. + * If zero, use previously assigned apic ID. + * @delivery If 0x0, deliver interrupts on APIC serial bus + * If 0x1, deliver interrupts on FSB + */ +static void init_ioapic(u32 ioapic_base, u8 new_id, u8 delivery) { - u32 bsp_lapicid = lapicid(); - u32 low, high; - u32 i, ioapic_interrupts; + u8 loglvl = BIOS_DEBUG; + u8 active_id; + u32 reg32; - printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n", - ioapic_base); - printk(BIOS_DEBUG, "IOAPIC: Bootstrap Processor Local APIC = 0x%02x\n", - bsp_lapicid); + reg32 = io_apic_read(ioapic_base, 0x00); + active_id = (reg32 >> 24) & 0xf; - if (ioapic_id) { - printk(BIOS_DEBUG, "IOAPIC: ID = 0x%02x\n", ioapic_id); - /* Set IOAPIC ID if it has been specified. */ - io_apic_write(ioapic_base, 0x00, - (io_apic_read(ioapic_base, 0x00) & 0xfff0ffff) | - (ioapic_id << 24)); + /* Changing a previously assigned ID and attempting + * to use ID=0 here are logged at a critical level. + */ + if ( ((active_id && new_id) && (active_id != new_id)) || + !(active_id || new_id)) + loglvl=BIOS_CRIT; + + if (!new_id) { + printk(loglvl, "IOAPIC: 0x%08x using old ID = %d\n", + ioapic_base, active_id); + + } else { + reg32 &= 0xf0ffffff; + reg32 |= (new_id & 0xf) << 24; + io_apic_write(ioapic_base, 0x00, reg32); + + printk(loglvl, "IOAPIC: 0x%08x changing ID = %d->%d\n", + ioapic_base, active_id, new_id); + + reg32 = io_apic_read(ioapic_base, 0x00); + active_id = (reg32 >> 24) & 0xf; + if (active_id != new_id) + printk(loglvl, "IOAPIC: 0x%08x changing ID failed (%d!=%d)\n", + ioapic_base, active_id, new_id); + } + + /* Assign interrupt delivery type */ + reg32 = io_apic_read(ioapic_base, 0x03); + switch (delivery) { + case 0: + printk(BIOS_DEBUG, "IOAPIC: Delivery is on APIC serial bus\n"); + reg32 = 0x00; + break; + case 1: + printk(BIOS_DEBUG, "IOAPIC: Delivery is on FSB\n"); + reg32 = 0x01; + break; + default: + printk(BIOS_CRIT, "IOAPIC: Delivery is reverted to FSB\n"); + reg32 = 0x01; + break; } + io_apic_write(ioapic_base, 0x03, reg32); +} + +/** + * Fill IOAPIC vectors all targeting the same processor. + * Virtual Wire Mode on vector 0 is enabled, others remain disabled. + * + * + * @ioapic_base IOAPIC base address + * @bsp_lapicid APIC ID of a CPU to receive the interrupts + * + */ +static void load_vectors(u32 ioapic_base, u8 bsp_lapicid) +{ + u32 low, high; + u32 i, ioapic_interrupts; /* Read the available number of interrupts. */ ioapic_interrupts = (io_apic_read(ioapic_base, 0x01) >> 16) & 0xff; @@ -89,28 +152,6 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id) ioapic_interrupts = 24; printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts); -// XXX this decision should probably be made elsewhere, and -// it's the C3, not the EPIA this depends on. -#if CONFIG_EPIA_VT8237R_INIT -#define IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS -#else -#define IOAPIC_INTERRUPTS_ON_FSB -#endif - -#ifdef IOAPIC_INTERRUPTS_ON_FSB - /* - * For the Pentium 4 and above APICs deliver their interrupts - * on the front side bus, enable that. - */ - printk(BIOS_DEBUG, "IOAPIC: Enabling interrupts on FSB\n"); - io_apic_write(ioapic_base, 0x03, - io_apic_read(ioapic_base, 0x03) | (1 << 0)); -#endif -#ifdef IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS - printk(BIOS_DEBUG, "IOAPIC: Enabling interrupts on APIC serial bus\n"); - io_apic_write(ioapic_base, 0x03, 0); -#endif - /* Enable Virtual Wire Mode. */ low = ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | ExtINT; high = bsp_lapicid << (56 - 32); @@ -125,10 +166,8 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id) printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", 0, high, low); - low = DISABLED; high = NONE; - for (i = 1; i < ioapic_interrupts; i++) { io_apic_write(ioapic_base, i * 2 + 0x10, low); io_apic_write(ioapic_base, i * 2 + 0x11, high); @@ -137,3 +176,36 @@ void setup_ioapic(u32 ioapic_base, u8 ioapic_id) i, high, low); } } + +// XXX this decision should probably be made elsewhere, and +// it's the C3, not the EPIA this depends on. + +#if CONFIG_EPIA_VT8237R_INIT +#define CONFIG_IOAPIC_DELIVERY_TYPE 0 +#else +#define CONFIG_IOAPIC_DELIVERY_TYPE 1 +#endif + +/** + * Assign IOAPIC with an ID + * + * Compile-time options from mainboard Kconfig can affect the + * chosen IOAPIC operational mode. + * + * @ioapic_base IOAPIC base address + * @new_id If non-zero (1-15), assign new apic ID. + * If zero, use previously assigned apic ID. + */ +void setup_ioapic(u32 ioapic_base, u8 new_id) +{ + u8 bsp_lapicid = lapicid(); + + printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n", + ioapic_base); + init_ioapic(ioapic_base, new_id, CONFIG_IOAPIC_DELIVERY_TYPE); + + printk(BIOS_DEBUG, "IOAPIC: Bootstrap Processor Local APIC ID = %d\n", + bsp_lapicid); + load_vectors(ioapic_base, bsp_lapicid); +} +

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Re: [coreboot] Getting serial output from w83627hf?
by Stefan Reinauer 19 Oct '11

19 Oct '11

* Alp Eren Köse <alperenkose(a)buyutech.com.tr> [111018 17:02]: > By the way I do not have a "CMC state machine binary", which it says: > #We don't ship that, but booting without it is bound to fail > in the src/southbridge/intel/sch/Makefile.inc file. What is it, how can get it? > > Is it likely for that to cause this serial output problem?? > > Thanks in advance. Yes, without the binary you will not get the system to boot.

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Re: [coreboot] How to make "System Restart after Power Fail" working onSB800?
by Peter Stuge 19 Oct '11

19 Oct '11

mopz0506 mopz0506 wrote: > What I do is just enable the E350M1 Winbound ACPI device in > devicetree.cb. > just change the "off" to "on" and everything works fine. Aha! No code changes needed? > Is it OK to attach the patch in this mail list? Normally everything goes via Gerrit, but because you prefer that I create the patch it is a good idea to use the mailing list. > Or you can patch it for me? I don't care about that. OK! Please review http://review.coreboot.org/292 if it is the correct change and let me know. > I'm from China and I want keep anonymous to be safe. No problem. Thanks for your help! > In fact, when I google "anonymous" to confirm my spelling, > my government reset the tcp/ip connection between my computer > and google's server. Yes, I have heard similar stories about the great firewall before. I am happy that you can participate on the mailing list! > Forgive me please and many thanks. Nothing to forgive. //Peter

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Patch merged into coreboot/master: 04ae610 IOAPIC: fix bitmask
by gerrit＠coreboot.org 19 Oct '11

19 Oct '11

the following patch was just integrated into master: commit 04ae610e7c83e6577cbc3043c747e54cea6b3fa7 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Wed Oct 19 07:23:51 2011 +0300 IOAPIC: fix bitmask APIC ID is bits 27..24, not 19..16. Change-Id: Ib53a480bf4328901094ca2c4713e8317321962a1 Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> See http://review.coreboot.org/299 for details. -gerrit

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coreboot October 2011