Florian Zumbiehl just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/390
-gerrit
commit 07516df69f509f4b30c62a4443850e446f25e696 Author: Florian Zumbiehl florz@florz.de Date: Tue Nov 1 20:19:41 2011 +0100
adding support for the Asus K8V-X
This pulls it all together and adds the real board-specific code.
Confirmed to be working: - IDE - SATA - floppy - USB1.1 - USB2.0 - PS/2 keyboard - PS/2 mouse - serial - parport - sound - ethernet - PCI slots - AGP - powernow - fan speed monitoring - flashrom write
Change-Id: Ifb97714c2f009d688be0ca3c38ddc01599ffd799 Signed-off-by: Florian Zumbiehl florz@florz.de --- src/mainboard/asus/Kconfig | 3 + src/mainboard/asus/k8v-x/Kconfig | 20 ++++--- src/mainboard/asus/k8v-x/acpi_tables.c | 2 +- src/mainboard/asus/k8v-x/devicetree.cb | 51 ++++++++++--------- src/mainboard/asus/k8v-x/dsdt.asl | 87 ++++--------------------------- src/mainboard/asus/k8v-x/mainboard.c | 38 +++++++++++++- src/mainboard/asus/k8v-x/mptable.c | 2 +- src/mainboard/asus/k8v-x/romstage.c | 69 +++++++++---------------- 8 files changed, 115 insertions(+), 157 deletions(-)
diff --git a/src/mainboard/asus/Kconfig b/src/mainboard/asus/Kconfig index 77b7997..46c4ac1 100644 --- a/src/mainboard/asus/Kconfig +++ b/src/mainboard/asus/Kconfig @@ -27,6 +27,8 @@ config BOARD_ASUS_A8V_E_SE bool "A8V-E SE" config BOARD_ASUS_A8V_E_DELUXE bool "A8V-E Deluxe" +config BOARD_ASUS_K8V_X + bool "K8V-X" config BOARD_ASUS_M2N_E bool "M2N-E" config BOARD_ASUS_M2V @@ -61,6 +63,7 @@ endchoice source "src/mainboard/asus/a8n_e/Kconfig" source "src/mainboard/asus/a8v-e_se/Kconfig" source "src/mainboard/asus/a8v-e_deluxe/Kconfig" +source "src/mainboard/asus/k8v-x/Kconfig" source "src/mainboard/asus/m2n-e/Kconfig" source "src/mainboard/asus/m2v/Kconfig" source "src/mainboard/asus/m2v-mx_se/Kconfig" diff --git a/src/mainboard/asus/k8v-x/Kconfig b/src/mainboard/asus/k8v-x/Kconfig index 4975cfa..d297143 100644 --- a/src/mainboard/asus/k8v-x/Kconfig +++ b/src/mainboard/asus/k8v-x/Kconfig @@ -1,26 +1,24 @@ -if BOARD_ASUS_A8V_E_SE +if BOARD_ASUS_K8V_X
config BOARD_SPECIFIC_OPTIONS # dummy def_bool y select ARCH_X86 - select CPU_AMD_SOCKET_939 - select K8_HT_FREQ_1G_SUPPORT + select CPU_AMD_SOCKET_754 select NORTHBRIDGE_AMD_AMDK8 select NORTHBRIDGE_AMD_AMDK8_ROOT_COMPLEX select SOUTHBRIDGE_VIA_VT8237R - select SOUTHBRIDGE_VIA_K8T890 - select SUPERIO_WINBOND_W83627EHG + select SOUTHBRIDGE_VIA_K8T800_OLD + select SUPERIO_WINBOND_W83697HF select HAVE_OPTION_TABLE select HAVE_ACPI_TABLES select HAVE_MP_TABLE select BOARD_ROMSIZE_KB_512 select RAMINIT_SYSINFO - select QRANK_DIMM_SUPPORT select SET_FIDVID
config MAINBOARD_DIR string - default asus/a8v-e_se + default asus/k8v-x
config DCACHE_RAM_BASE hex @@ -44,7 +42,11 @@ config SB_HT_CHAIN_ON_BUS0
config MAINBOARD_PART_NUMBER string - default "A8V-E SE" + default "K8V-X" + +config AGP_APERTURE_SIZE + hex + default 0x10000000
config HW_MEM_HOLE_SIZEK hex @@ -70,4 +72,4 @@ config HT_CHAIN_UNITID_BASE hex default 0x0
-endif # BOARD_ASUS_A8V_E_SE +endif # BOARD_ASUS_K8V_X diff --git a/src/mainboard/asus/k8v-x/acpi_tables.c b/src/mainboard/asus/k8v-x/acpi_tables.c index 218f3bb..571d136 100644 --- a/src/mainboard/asus/k8v-x/acpi_tables.c +++ b/src/mainboard/asus/k8v-x/acpi_tables.c @@ -30,7 +30,7 @@ #include <device/device.h> #include <device/pci_ids.h> #include "southbridge/via/vt8237r/vt8237r.h" -#include "southbridge/via/k8t890/k8t890.h" +#include "southbridge/via/k8t890/k8x8xx.h" #include "northbridge/amd/amdk8/acpi.h" #include <cpu/amd/model_fxx_powernow.h>
diff --git a/src/mainboard/asus/k8v-x/devicetree.cb b/src/mainboard/asus/k8v-x/devicetree.cb index 3da93fe..20d1959 100644 --- a/src/mainboard/asus/k8v-x/devicetree.cb +++ b/src/mainboard/asus/k8v-x/devicetree.cb @@ -1,6 +1,6 @@ chip northbridge/amd/amdk8/root_complex # Root complex device lapic_cluster 0 on # APIC cluster - chip cpu/amd/socket_939 # CPU + chip cpu/amd/socket_754 # CPU device lapic 0 on end # APIC end end @@ -16,8 +16,26 @@ chip northbridge/amd/amdk8/root_complex # Root complex register "ide1_80pin_cable" = "1" # 80pin cable on IDE channel 1 register "fn_ctrl_lo" = "0" # Enable SB functions register "fn_ctrl_hi" = "0xad" # Enable SB functions + register "usb2_termination_set" = "1" + register "usb2_termination_a" = "8" + register "usb2_termination_b" = "8" + register "usb2_termination_c" = "6" + register "usb2_termination_d" = "6" + register "usb2_termination_e" = "6" + register "usb2_termination_f" = "6" + register "usb2_termination_g" = "6" + register "usb2_termination_h" = "6" + register "usb2_dpll_set" = "1" + register "usb2_dpll_delay" = "3" + register "no_int_efgh" = "1" + register "enable_gpo3" = "1" + register "disable_gpo26_gpo27" = "1" + register "enable_aol_2_smb_slave" = "1" + register "enable_gpo5" = "1" + register "gpio15_12_dir_output" = "1" device pci 0.0 on end # HT device pci f.1 on end # IDE + device pci 10.4 on end # USB2 device pci 11.0 on # LPC chip drivers/generic/generic # DIMM 0-0-0 device i2c 50 on end @@ -28,10 +46,9 @@ chip northbridge/amd/amdk8/root_complex # Root complex chip drivers/generic/generic # DIMM 0-1-0 device i2c 52 on end end - chip drivers/generic/generic # DIMM 0-1-1 - device i2c 53 on end - end - chip superio/winbond/w83627ehg # Super I/O + chip superio/winbond/w83697hf # Super I/O + register "hwmon_fan1_divisor" = "128" + register "hwmon_fan2_divisor" = "4" device pnp 2e.0 on # Floppy io 0x60 = 0x3f0 irq 0x70 = 6 @@ -47,35 +64,19 @@ chip northbridge/amd/amdk8/root_complex # Root complex irq 0x70 = 4 end device pnp 2e.3 off # Com2 (N/A on this board) - io 0x60 = 0x2f8 - irq 0x70 = 3 - end - device pnp 2e.5 off # PS/2 keyboard & mouse (off) - end - device pnp 2e.106 off # Serial flash interface (SFI) - io 0x60 = 0x100 end - device pnp 2e.007 off # GPIO 1 + device pnp 2e.6 off # CIR end - device pnp 2e.107 on # Game port - io 0x60 = 0x201 + device pnp 2e.7 off # Game port/GPIO 1 end - device pnp 2e.207 on # MIDI - io 0x62 = 0x330 - irq 0x70 = 0xa + device pnp 2e.8 off # MIDI/GPIO 5 end - device pnp 2e.307 off # GPIO 6 - end - device pnp 2e.8 off # WDTO#, PLED - end - device pnp 2e.009 on # GPIO 2 + device pnp 2e.009 off # GPIO 2 end device pnp 2e.109 off # GPIO 3 end device pnp 2e.209 off # GPIO 4 end - device pnp 2e.309 on # GPIO 5 - end device pnp 2e.a off # ACPI end device pnp 2e.b on # Hardware monitor diff --git a/src/mainboard/asus/k8v-x/dsdt.asl b/src/mainboard/asus/k8v-x/dsdt.asl index 16ad92c..25b7460 100644 --- a/src/mainboard/asus/k8v-x/dsdt.asl +++ b/src/mainboard/asus/k8v-x/dsdt.asl @@ -84,6 +84,8 @@ DefinitionBlock ("DSDT.aml", "DSDT", 1, "CORE ", "COREBOOT", 1)
/* PCI Routing Table */ Name (_PRT, Package () { + Package (0x04) { 0x0001FFFF, 0x00, 0x00, 0x10 }, /* AGP slot, effectively */ + Package (0x04) { 0x0001FFFF, 0x01, 0x00, 0x11 }, Package (0x04) { 0x000BFFFF, 0x00, 0x00, 0x10 }, /* Slot 0xB */ Package (0x04) { 0x000BFFFF, 0x01, 0x00, 0x11 }, Package (0x04) { 0x000BFFFF, 0x02, 0x00, 0x12 }, @@ -96,88 +98,23 @@ DefinitionBlock ("DSDT.aml", "DSDT", 1, "CORE ", "COREBOOT", 1) Package (0x04) { 0x000DFFFF, 0x01, 0x00, 0x13 }, Package (0x04) { 0x000DFFFF, 0x02, 0x00, 0x10 }, Package (0x04) { 0x000DFFFF, 0x03, 0x00, 0x11 }, + Package (0x04) { 0x000EFFFF, 0x00, 0x00, 0x13 }, /* Slot 0xE */ + Package (0x04) { 0x000EFFFF, 0x01, 0x00, 0x10 }, + Package (0x04) { 0x000EFFFF, 0x02, 0x00, 0x11 }, + Package (0x04) { 0x000EFFFF, 0x03, 0x00, 0x12 }, + Package (0x04) { 0x0009FFFF, 0x00, 0x00, 0x10 }, /* Slot 0x9 */ + Package (0x04) { 0x0009FFFF, 0x01, 0x00, 0x11 }, + Package (0x04) { 0x0009FFFF, 0x02, 0x00, 0x12 }, + Package (0x04) { 0x0009FFFF, 0x03, 0x00, 0x13 }, + Package (0x04) { 0x000AFFFF, 0x00, 0x00, 0x11 }, /* Marvell 88E8001 ethernet */ Package (0x04) { 0x000FFFFF, 0x01, 0x00, 0x14 }, /* 0xf SATA IRQ 20 */ Package (0x04) { 0x000FFFFF, 0x00, 0x00, 0x14 }, /* 0xf Native IDE IRQ 20 */ Package (0x04) { 0x0010FFFF, 0x00, 0x00, 0x15 }, /* USB routing */ Package (0x04) { 0x0010FFFF, 0x01, 0x00, 0x15 }, Package (0x04) { 0x0010FFFF, 0x02, 0x00, 0x15 }, - Package (0x04) { 0x0010FFFF, 0x03, 0x00, 0x15 }, - Package (0x04) { 0x0011FFFF, 0x02, 0x00, 0x16 }, /* AC97, MC97 */ - Package (0x04) { 0x0002FFFF, 0x00, 0x00, 0x1B }, /* PCIE16 bridge IRQ27 */ - Package (0x04) { 0x0002FFFF, 0x01, 0x00, 0x1B }, - Package (0x04) { 0x0002FFFF, 0x02, 0x00, 0x1B }, - Package (0x04) { 0x0002FFFF, 0x03, 0x00, 0x1B }, - Package (0x04) { 0x0003FFFF, 0x00, 0x00, 0x1F }, /* PCIE bridge IRQ31 */ - Package (0x04) { 0x0003FFFF, 0x01, 0x00, 0x23 }, /* IRQ36 */ - Package (0x04) { 0x0003FFFF, 0x02, 0x00, 0x27 }, /* IRQ39 */ - Package (0x04) { 0x0003FFFF, 0x03, 0x00, 0x2B } /* IRQ43 */ + Package (0x04) { 0x0011FFFF, 0x02, 0x00, 0x16 } /* AC97, MC97 */ })
- Device (PEGG) - { - Name (_ADR, 0x00020000) - Name (_UID, 0x00) - Name (_BBN, 0x02) - Name (_PRT, Package () { - Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x18 }, /* PCIE IRQ24-IRQ27 */ - Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x19 }, - Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x1A }, - Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x1B }, - }) - } - - Device (PEX0) - { - Name (_ADR, 0x00030000) - Name (_UID, 0x00) - Name (_BBN, 0x03) - Name (_PRT, Package () { - Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x1C }, /* PCIE IRQ28-IRQ31 */ - Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x1D }, - Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x1E }, - Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x1F }, - }) - } - - Device (PEX1) - { - Name (_ADR, 0x00030001) - Name (_UID, 0x00) - Name (_BBN, 0x04) - Name (_PRT, Package () { - Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x20 }, /* PCIE IRQ32-IRQ35 */ - Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x21 }, - Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x22 }, - Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x23 }, - }) - } - - Device (PEX2) - { - Name (_ADR, 0x00030002) - Name (_UID, 0x00) - Name (_BBN, 0x05) - Name (_PRT, Package () { - Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x24 }, /* PCIE IRQ36-IRQ39 */ - Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x25 }, - Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x26 }, - Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x27 }, - }) - } - - Device (PEX3) - { - Name (_ADR, 0x00030003) - Name (_UID, 0x00) - Name (_BBN, 0x06) - Name (_PRT, Package () { - Package (0x04) { 0x0000FFFF, 0x00, 0x00, 0x28 }, /* PCIE IRQ40-IRQ43 */ - Package (0x04) { 0x0000FFFF, 0x01, 0x00, 0x29 }, - Package (0x04) { 0x0000FFFF, 0x02, 0x00, 0x2A }, - Package (0x04) { 0x0000FFFF, 0x03, 0x00, 0x2B }, - }) - } - Device (ISA) { Name (_ADR, 0x00110000)
diff --git a/src/mainboard/asus/k8v-x/mainboard.c b/src/mainboard/asus/k8v-x/mainboard.c index b70f396..3e294b8 100644 --- a/src/mainboard/asus/k8v-x/mainboard.c +++ b/src/mainboard/asus/k8v-x/mainboard.c @@ -2,6 +2,7 @@ * This file is part of the coreboot project. * * Copyright (C) 2007 Rudolf Marek r.marek@assembler.cz + * Copyright (C) 2010 Tobias Diedrich ranma+coreboot@tdiedrich.de * * 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 @@ -21,8 +22,43 @@ #include <device/device.h> #include <device/pci.h> #include <device/pci_ids.h> +#include <arch/io.h> +#include "southbridge/via/vt8237r/vt8237r.h" #include "chip.h"
+u32 vt8237_ide_80pin_detect(struct device *dev) +{ + device_t lpc_dev; + u16 acpi_io_base; + u32 gpio_in; + u32 res; + + lpc_dev = dev_find_device(PCI_VENDOR_ID_VIA, + PCI_DEVICE_ID_VIA_VT8237R_LPC, 0); + if (!lpc_dev) + return 0; + + acpi_io_base = pci_read_config16(lpc_dev, 0x88) & ~1; + if (!acpi_io_base) + return 0; + + /* select function GPIO29 for pin AB9 */ + pci_write_config8(lpc_dev, 0xe5, pci_read_config8(lpc_dev, 0xe5) | 0x08); + + gpio_in = inl(acpi_io_base + 0x48); + /* bit 29 for primary port, clear if unconnected or 80-pin cable */ + res = gpio_in & (1<<29) ? 0 : VT8237R_IDE0_80PIN_CABLE; + /* bit 8 for secondary port, clear if unconnected or 80-pin cable */ + res |= gpio_in & (1<<8) ? 0 : VT8237R_IDE1_80PIN_CABLE; + + printk(BIOS_INFO, "Cable on %s PATA port: %d pin\n", "primary", + res & VT8237R_IDE0_80PIN_CABLE ? 80 : 40); + printk(BIOS_INFO, "Cable on %s PATA port: %d pin\n", "secondary", + res & VT8237R_IDE1_80PIN_CABLE ? 80 : 40); + + return res; +} + struct chip_operations mainboard_ops = { - CHIP_NAME("ASUS A8V-E SE Mainboard") + CHIP_NAME("ASUS K8V-X Mainboard") }; diff --git a/src/mainboard/asus/k8v-x/mptable.c b/src/mainboard/asus/k8v-x/mptable.c index 999dd6c..673dfbe 100644 --- a/src/mainboard/asus/k8v-x/mptable.c +++ b/src/mainboard/asus/k8v-x/mptable.c @@ -22,7 +22,7 @@ #include <arch/smp/mpspec.h> #include <arch/ioapic.h> #include "southbridge/via/vt8237r/vt8237r.h" -#include "southbridge/via/k8t890/k8t890.h" +#include "southbridge/via/k8t890/k8x8xx.h"
static void *smp_write_config_table(void *v) { diff --git a/src/mainboard/asus/k8v-x/romstage.c b/src/mainboard/asus/k8v-x/romstage.c index 4e08859..014ce68 100644 --- a/src/mainboard/asus/k8v-x/romstage.c +++ b/src/mainboard/asus/k8v-x/romstage.c @@ -40,7 +40,7 @@ unsigned int get_sbdn(unsigned bus); #include "cpu/x86/lapic/boot_cpu.c" #include "northbridge/amd/amdk8/reset_test.c" #include "northbridge/amd/amdk8/early_ht.c" -#include "superio/winbond/w83627ehg/early_serial.c" +#include "superio/winbond/w83697hf/early_serial.c" #include "southbridge/via/vt8237r/early_smbus.c" #include "northbridge/amd/amdk8/debug.c" /* After vt8237r/early_smbus.c! */ #include "cpu/x86/mtrr/earlymtrr.c" @@ -48,9 +48,7 @@ unsigned int get_sbdn(unsigned bus); #include "northbridge/amd/amdk8/setup_resource_map.c" #include <spd.h>
-#define SERIAL_DEV PNP_DEV(0x2e, W83627EHG_SP1) -#define GPIO_DEV PNP_DEV(0x2e, W83627EHG_GPIO_SUSLED_V) -#define ACPI_DEV PNP_DEV(0x2e, W83627EHG_ACPI) +#define SERIAL_DEV PNP_DEV(0x2e, W83697HF_SP1)
static void memreset(int controllers, const struct mem_controller *ctrl) { } static void activate_spd_rom(const struct mem_controller *ctrl) { } @@ -105,52 +103,25 @@ static void sio_init(void) u8 reg;
pnp_enter_ext_func_mode(SERIAL_DEV); - /* We have 24MHz input. */ reg = pnp_read_config(SERIAL_DEV, 0x24); - pnp_write_config(SERIAL_DEV, 0x24, (reg & ~0x40)); - /* We have GPIO for KB/MS pin. */ - reg = pnp_read_config(SERIAL_DEV, 0x2a); - pnp_write_config(SERIAL_DEV, 0x2a, (reg | 1)); - /* We have all RESTOUT and even some reserved bits, too. */ - reg = pnp_read_config(SERIAL_DEV, 0x2c); - pnp_write_config(SERIAL_DEV, 0x2c, (reg | 0xf0)); - pnp_exit_ext_func_mode(SERIAL_DEV); - - pnp_enter_ext_func_mode(ACPI_DEV); - pnp_set_logical_device(ACPI_DEV); - /* - * Set the delay rising time from PWROK_LP to PWROK_ST to - * 300 - 600ms, and 0 to vice versa. - */ - reg = pnp_read_config(ACPI_DEV, 0xe6); - pnp_write_config(ACPI_DEV, 0xe6, (reg & 0xf0)); - /* 1 Use external suspend clock source 32.768KHz. Undocumented?? */ - reg = pnp_read_config(ACPI_DEV, 0xe4); - pnp_write_config(ACPI_DEV, 0xe4, (reg | 0x10)); - pnp_exit_ext_func_mode(ACPI_DEV); - - pnp_enter_ext_func_mode(GPIO_DEV); - pnp_set_logical_device(GPIO_DEV); - /* Set memory voltage to 2.75V, vcore offset + 100mV, 1.5V chipset voltage. */ - pnp_write_config(GPIO_DEV, 0x30, 0x09); /* Enable GPIO 2 & GPIO 5. */ - pnp_write_config(GPIO_DEV, 0xe2, 0x00); /* No inversion */ - pnp_write_config(GPIO_DEV, 0xe5, 0x00); /* No inversion */ - pnp_write_config(GPIO_DEV, 0xe3, 0x03); /* 0000 0011, 0=output 1=input */ - pnp_write_config(GPIO_DEV, 0xe0, 0xde); /* 1101 1110, 0=output 1=input */ - pnp_write_config(GPIO_DEV, 0xe1, 0x01); /* Set output val. */ - pnp_write_config(GPIO_DEV, 0xe4, 0xb4); /* Set output val (1011 0100). */ - pnp_exit_ext_func_mode(GPIO_DEV); + /* 4 Mbit flash */ + reg = (reg & ~0x30) | 0x20; + /* We have 24MHz input. */ + reg &= ~0x40; + /* enable MEMW#, so flash can be written */ + reg |= 0x08; + pnp_write_config(SERIAL_DEV, 0x24, reg); }
void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) { static const uint16_t spd_addr[] = { // Node 0 - DIMM0, DIMM2, 0, 0, - DIMM1, DIMM3, 0, 0, + DIMM0, DIMM1, DIMM2, 0, + 0, 0, 0, 0, // Node 1 - DIMM4, DIMM6, 0, 0, - DIMM5, DIMM7, 0, 0, + 0, 0, 0, 0, + 0, 0, 0, 0, }; unsigned bsp_apicid = 0; int needs_reset = 0; @@ -158,7 +129,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) + CONFIG_DCACHE_RAM_SIZE - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE);
sio_init(); - w83627ehg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + w83697hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); console_init(); enable_rom_decode();
@@ -173,7 +144,7 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
// FIXME why is this executed again? ---> sio_init(); - w83627ehg_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + w83697hf_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); console_init(); enable_rom_decode(); // <--- FIXME why is this executed again? @@ -209,7 +180,8 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) soft_reset(); }
- /* the HT settings needs to be OK, because link freq chnage may cause HT disconnect */ + /* the HT settings needs to be OK, because link freq change may cause HT disconnect */ + vt8237_sb_enable_fid_vid(); enable_fid_change(); init_fidvid_bsp(bsp_apicid);
@@ -220,6 +192,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) fill_mem_ctrl(sysinfo->nodes, sysinfo->ctrl, spd_addr);
enable_smbus(); + + /* this seems to be some GPIO on the SMBus--in any case, setting these + * two bits reduces the pullup impedance of the bus lines and is required + * in order to be able to read SPD info */ + smbus_write_byte(0x48, 0x07, smbus_read_byte(0x48, 0x07) | 0x80); + smbus_write_byte(0x4a, 0x07, smbus_read_byte(0x4a, 0x07) | 0x10); + sdram_initialize(sysinfo->nodes, sysinfo->ctrl, sysinfo); post_cache_as_ram(); }