Andrew Wu (arw@dmp.com.tw) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4570
-gerrit
commit f2582d01f7338c2c4da655e38d5cd58d123f07b5 Author: Andrew Wu arw@dmp.com.tw Date: Mon Dec 23 19:54:26 2013 +0800
dmp/vortex86ex: Initialize I2C controller base address/IRQ
Change-Id: Iefd6852f2300f703ebed8b52aee627107a024f85 Signed-off-by: Andrew Wu arw@dmp.com.tw --- src/mainboard/dmp/vortex86ex/Kconfig | 5 +++++ src/southbridge/dmp/vortex86ex/southbridge.c | 15 +++++++++++++++ src/southbridge/dmp/vortex86ex/southbridge.h | 1 + 3 files changed, 21 insertions(+)
diff --git a/src/mainboard/dmp/vortex86ex/Kconfig b/src/mainboard/dmp/vortex86ex/Kconfig index 723a251..b1db0dc 100644 --- a/src/mainboard/dmp/vortex86ex/Kconfig +++ b/src/mainboard/dmp/vortex86ex/Kconfig @@ -50,6 +50,11 @@ config ID_SECTION_OFFSET hex default 0x4800
+# SPI I/O base address control. +config I2C_BASE + hex + default 0xfb00 + # ROM Strap PLL config setting :
choice diff --git a/src/southbridge/dmp/vortex86ex/southbridge.c b/src/southbridge/dmp/vortex86ex/southbridge.c index 5be8575..bcdd8b2 100644 --- a/src/southbridge/dmp/vortex86ex/southbridge.c +++ b/src/southbridge/dmp/vortex86ex/southbridge.c @@ -72,6 +72,7 @@ static const unsigned char irq_to_int_routing[16] = { #define PIDE_IRQ 5
#define SPI1_IRQ 10 +#define I2C0_IRQ 10 #define MOTOR_IRQ 11
/* RT0-3 IRQs. */ @@ -429,6 +430,16 @@ static void ex_sb_uart_init(struct device *dev) //pci_write_config16(SB, SB_REG_UART_CFG_IO_BASE, 0x0); }
+static void i2c_init(struct device *dev) +{ + u8 mapped_irq = irq_to_int_routing[I2C0_IRQ]; + u32 cfg = 0; + cfg |= 1 << 31; // UE = enabled. + cfg |= (mapped_irq << 16); // IIRT0. + cfg |= CONFIG_I2C_BASE; // UIOA. + pci_write_config32(dev, SB_REG_II2CCR, cfg); +} + static int get_rtc_update_in_progress(void) { if (cmos_read(RTC_REG_A) & RTC_UIP) @@ -547,6 +558,9 @@ static void vortex86_sb_read_resources(device_t dev)
/* Reserve space for flash */ vortex86_sb_set_spi_flash_size(dev, 2, flash_size); + + /* Reserve space for I2C */ + vortex86_sb_set_io_resv(dev, 3, CONFIG_I2C_BASE, 8); }
static void southbridge_init_func1(struct device *dev) @@ -577,6 +591,7 @@ static void southbridge_init(struct device *dev) if (dev->device == 0x6011) { ex_sb_gpio_init(dev); ex_sb_uart_init(dev); + i2c_init(dev); } pci_routing_fixup(dev);
diff --git a/src/southbridge/dmp/vortex86ex/southbridge.h b/src/southbridge/dmp/vortex86ex/southbridge.h index 0cc28fa..316d30a 100644 --- a/src/southbridge/dmp/vortex86ex/southbridge.h +++ b/src/southbridge/dmp/vortex86ex/southbridge.h @@ -36,6 +36,7 @@ #define SB_REG_IPFCR 0xc0 #define SB_REG_FRWPR 0xc4 #define SB_REG_STRAP 0xce +#define SB_REG_II2CCR 0xd4
#define SB1 PCI_DEV(0, 7, 1) #define SB1_REG_EXT_PIRQ_ROUTE2 0xb4