Zheng Bao ([email protected]) just uploaded a new patch set to gerrit, which 
you can find at http://review.coreboot.org/623

-gerrit

commit 41cd2ea669c88a9446f1553bebe873305d020377
Author: zbao <[email protected]>
Date:   Tue Mar 27 18:58:14 2012 +0800

    S3 code in coreboot public folder.
    
    1. Move the Stack to high memory.
    2. Restore the MTRR before Coreboot jump to the wakeup vector.
    
    Change-Id: I9872e02fcd7eed98e7f630aa29ece810ac32d55a
    Signed-off-by: Zheng Bao <[email protected]>
    Signed-off-by: zbao <[email protected]>
---
 src/Kconfig                                      |    4 +
 src/arch/x86/boot/tables.c                       |    2 +-
 src/cpu/amd/Makefile.inc                         |   12 +
 src/cpu/amd/agesa/Makefile.inc                   |    2 +
 src/cpu/amd/agesa/cache_as_ram.inc               |    7 +
 src/cpu/amd/agesa/family14/Kconfig               |    6 +-
 src/cpu/amd/agesa/family14/model_14_init.c       |  125 +++++----
 src/cpu/amd/agesa/s3_resume.c                    |  348 ++++++++++++++++++++++
 src/cpu/amd/agesa/s3_resume.h                    |   42 +++
 src/include/cbmem.h                              |    8 +-
 src/northbridge/amd/agesa/Kconfig                |    4 +
 src/northbridge/amd/agesa/family14/northbridge.c |   77 ++++-
 12 files changed, 560 insertions(+), 77 deletions(-)

diff --git a/src/Kconfig b/src/Kconfig
index 845d26f..4174b2d 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -207,6 +207,10 @@ config HAVE_INIT_TIMER
        default n if UDELAY_IO
        default y
 
+config HIGH_SCRATCH_MEMORY_SIZE
+       hex
+       default 0x0
+
 config HAVE_MAINBOARD_RESOURCES
        bool
        default n
diff --git a/src/arch/x86/boot/tables.c b/src/arch/x86/boot/tables.c
index b7dc4fe..c90a01b 100644
--- a/src/arch/x86/boot/tables.c
+++ b/src/arch/x86/boot/tables.c
@@ -236,7 +236,7 @@ struct lb_memory *write_tables(void)
         * it begin there during reboot time. We don't need the pointer, nor
         * the result right now. If it fails, ACPI resume will be disabled.
         */
-       cbmem_add(CBMEM_ID_RESUME, HIGH_MEMORY_SAVE);
+       cbmem_add(CBMEM_ID_RESUME, HIGH_MEMORY_SAVE + 
CONFIG_HIGH_SCRATCH_MEMORY_SIZE);
 #endif
 
 #if CONFIG_MULTIBOOT
diff --git a/src/cpu/amd/Makefile.inc b/src/cpu/amd/Makefile.inc
index 6663d14..6d7b0e1 100644
--- a/src/cpu/amd/Makefile.inc
+++ b/src/cpu/amd/Makefile.inc
@@ -15,3 +15,15 @@ subdirs-$(CONFIG_CPU_AMD_SC520) += sc520
 subdirs-$(CONFIG_CPU_AMD_SOCKET_S1G1) += socket_S1G1
 
 subdirs-$(CONFIG_CPU_AMD_AGESA) += agesa
+
+$(obj)/s3.rom:
+       echo "    S3 NVRAM   0xffff0000 (S3 storage area)"
+       echo -ne '\xFF' > $@
+       for ((i=0;i<20479;i++)) do echo -ne '\xFF' >> $@ ; done
+
+ifeq ($(CONFIG_HAVE_ACPI_RESUME), y)
+cbfs-files-y += s3nv
+s3nv-file := $(obj)/s3.rom
+s3nv-position := 0xffff0000
+s3nv-type := raw
+endif
diff --git a/src/cpu/amd/agesa/Makefile.inc b/src/cpu/amd/agesa/Makefile.inc
index fb536dd..696173d 100644
--- a/src/cpu/amd/agesa/Makefile.inc
+++ b/src/cpu/amd/agesa/Makefile.inc
@@ -21,5 +21,7 @@ subdirs-$(CONFIG_CPU_AMD_AGESA_FAMILY12) += family12
 subdirs-$(CONFIG_CPU_AMD_AGESA_FAMILY14) += family14
 subdirs-$(CONFIG_CPU_AMD_AGESA_FAMILY15) += family15
 
+romstage-$(CONFIG_HAVE_ACPI_RESUME) += s3_resume.c
+ramstage-$(CONFIG_HAVE_ACPI_RESUME) += s3_resume.c
 ramstage-y += apic_timer.c
 cpu_incs += $(src)/cpu/amd/agesa/cache_as_ram.inc
diff --git a/src/cpu/amd/agesa/cache_as_ram.inc 
b/src/cpu/amd/agesa/cache_as_ram.inc
index f328db4..2124bf3 100755
--- a/src/cpu/amd/agesa/cache_as_ram.inc
+++ b/src/cpu/amd/agesa/cache_as_ram.inc
@@ -86,6 +86,13 @@ disable_cache_as_ram:
   /* Save return stack */
   movd %esp, %xmm0
 
+  /* Disable cache */
+  movl %cr0, %eax
+  orl  $(1 << 30), %eax
+  movl %eax, %cr0
+
+  invd
+
   AMD_DISABLE_STACK
 
   /* Restore the return stack */
diff --git a/src/cpu/amd/agesa/family14/Kconfig 
b/src/cpu/amd/agesa/family14/Kconfig
index 702270c..6f20831 100644
--- a/src/cpu/amd/agesa/family14/Kconfig
+++ b/src/cpu/amd/agesa/family14/Kconfig
@@ -66,4 +66,8 @@ config HAVE_INIT_TIMER
        bool
        default y
        depends on CPU_AMD_AGESA_FAMILY14
-
+config HIGH_SCRATCH_MEMORY_SIZE
+# Now we can assume the statck as (0xA0000 - 0x30000 + 0x1000) which is max
+       hex
+       default 0x71000
+       depends on CPU_AMD_AGESA_FAMILY14
diff --git a/src/cpu/amd/agesa/family14/model_14_init.c 
b/src/cpu/amd/agesa/family14/model_14_init.c
index 6f697cf..4fd2b85 100644
--- a/src/cpu/amd/agesa/family14/model_14_init.c
+++ b/src/cpu/amd/agesa/family14/model_14_init.c
@@ -32,6 +32,8 @@
 #include <cpu/x86/cache.h>
 #include <cpu/x86/mtrr.h>
 #include <cpu/amd/amdfam14.h>
+#include <arch/acpi.h>
+#include <cpu/amd/agesa/s3_resume.h>
 
 #define MCI_STATUS 0x401
 
@@ -57,69 +59,84 @@ void wrmsr_amd(u32 index, msr_t msr)
 
 static void model_14_init(device_t dev)
 {
-  printk(BIOS_DEBUG, "Model 14 Init.\n");
-
-  u8 i;
-  msr_t msr;
-  int msrno;
+       u32 i;
+       msr_t msr;
 #if CONFIG_LOGICAL_CPUS == 1
-  u32 siblings;
+       u32 siblings;
+#endif
+       printk(BIOS_DEBUG, "Model 14 Init.\n");
+
+       disable_cache ();
+       /*
+        * AGESA sets the MTRRs main MTRRs. The shadow area needs to be set
+        * by coreboot. The amd_setup_mtrrs should work, but needs debug on 
fam14.
+        * TODO:
+        * amd_setup_mtrrs();
+        */
+
+       /* Enable access to AMD RdDram and WrDram extension bits */
+       msr = rdmsr(SYSCFG_MSR);
+       msr.lo |= SYSCFG_MSR_MtrrFixDramModEn;
+       msr.lo &= ~SYSCFG_MSR_MtrrFixDramEn;
+       wrmsr(SYSCFG_MSR, msr);
+
+       /* Set shadow WB, RdMEM, WrMEM */
+       msr.lo = msr.hi = 0;
+       wrmsr (0x259, msr);
+       msr.hi = msr.lo = 0x1e1e1e1e;
+       wrmsr(0x250, msr);
+       wrmsr(0x258, msr);
+       for (i = 0x268; i <= 0x26f; i++)
+               wrmsr(i, msr);
+
+       msr = rdmsr(SYSCFG_MSR);
+       msr.lo &= ~SYSCFG_MSR_MtrrFixDramModEn;
+       msr.lo |= SYSCFG_MSR_MtrrFixDramEn;
+       wrmsr(SYSCFG_MSR, msr);
+
+#if CONFIG_HAVE_ACPI_RESUME == 1
+       if (acpi_slp_type == 3)
+               restore_mtrr();
 #endif
 
-  disable_cache ();
-  /* Enable access to AMD RdDram and WrDram extension bits */
-  msr = rdmsr(SYSCFG_MSR);
-  msr.lo |= SYSCFG_MSR_MtrrFixDramModEn;
-  wrmsr(SYSCFG_MSR, msr);
-
-   // BSP: make a0000-bffff UC, c0000-fffff WB, same as 
OntarioApMtrrSettingsList for APs
-   msr.lo = msr.hi = 0;
-   wrmsr (0x259, msr);
-   msr.lo = msr.hi = 0x1e1e1e1e;
-   for (msrno = 0x268; msrno <= 0x26f; msrno++)
-      wrmsr (msrno, msr);
-
-  /* disable access to AMD RdDram and WrDram extension bits */
-  msr = rdmsr(SYSCFG_MSR);
-  msr.lo &= ~SYSCFG_MSR_MtrrFixDramModEn;
-  wrmsr(SYSCFG_MSR, msr);
-  enable_cache ();
-
-  /* zero the machine check error status registers */
-  msr.lo = 0;
-  msr.hi = 0;
-  for (i = 0; i < 6; i++) {
-    wrmsr(MCI_STATUS + (i * 4), msr);
-  }
-
-  /* Enable the local cpu apics */
-  setup_lapic();
+       x86_mtrr_check();
+       x86_enable_cache();
+
+       /* zero the machine check error status registers */
+       msr.lo = 0;
+       msr.hi = 0;
+       for (i = 0; i < 6; i++) {
+               wrmsr(MCI_STATUS + (i * 4), msr);
+       }
+
+       /* Enable the local cpu apics */
+       setup_lapic();
 
 #if CONFIG_LOGICAL_CPUS == 1
-  siblings = cpuid_ecx(0x80000008) & 0xff;
-
-  if (siblings > 0) {
-    msr = rdmsr_amd(CPU_ID_FEATURES_MSR);
-    msr.lo |= 1 << 28;
-    wrmsr_amd(CPU_ID_FEATURES_MSR, msr);
-
-    msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR);
-    msr.hi |= 1 << (33 - 32);
-    wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr);
-  }
-  printk(BIOS_DEBUG, "siblings = %02d, ", siblings);
+       siblings = cpuid_ecx(0x80000008) & 0xff;
+
+       if (siblings > 0) {
+               msr = rdmsr_amd(CPU_ID_FEATURES_MSR);
+               msr.lo |= 1 << 28;
+               wrmsr_amd(CPU_ID_FEATURES_MSR, msr);
+
+               msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR);
+               msr.hi |= 1 << (33 - 32);
+               wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr);
+       }
 #endif
 
-  /* DisableCf8ExtCfg */
-  msr = rdmsr(NB_CFG_MSR);
-  msr.hi &= ~(1 << (46 - 32));
-  wrmsr(NB_CFG_MSR, msr);
+       /* DisableCf8ExtCfg */
+       msr = rdmsr(NB_CFG_MSR);
+       msr.hi &= ~(1 << (46 - 32));
+       wrmsr(NB_CFG_MSR, msr);
 
+       /* Write protect SMM space with SMMLOCK. */
+       msr = rdmsr(HWCR_MSR);
+       msr.lo |= (1 << 0);
+       wrmsr(HWCR_MSR, msr);
 
-  /* Write protect SMM space with SMMLOCK. */
-  msr = rdmsr(HWCR_MSR);
-  msr.lo |= (1 << 0);
-  wrmsr(HWCR_MSR, msr);
+       printk(BIOS_SPEW, "%s done.\n", __func__);
 }
 
 static struct device_operations cpu_dev_ops = {
diff --git a/src/cpu/amd/agesa/s3_resume.c b/src/cpu/amd/agesa/s3_resume.c
new file mode 100644
index 0000000..871d8a7
--- /dev/null
+++ b/src/cpu/amd/agesa/s3_resume.c
@@ -0,0 +1,348 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
+ *
+ * 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 "AGESA.h"
+#include "amdlib.h"
+#include <console/console.h>
+#include <cpu/x86/msr.h>
+#include <cpu/x86/mtrr.h>
+#include <cpu/amd/mtrr.h>
+#include <cpu/x86/cache.h>
+#if CONFIG_WRITE_HIGH_TABLES
+#include <cbmem.h>
+#endif
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ops.h>
+#include <arch/io.h>
+#include <arch/acpi.h>
+#include <string.h>
+#include "Porting.h"
+#include "BiosCallOuts.h"
+#include "s3_resume.h"
+#include "agesawrapper.h"
+
+#ifndef __PRE_RAM__
+#include "spi.h"
+#endif
+
+void restore_mtrr(void)
+{
+       u32 msr;
+       volatile UINT32 *msrPtr = (volatile UINT32 *)S3_DATA_MTRR_POS;
+       msr_t msr_data;
+
+       printk(BIOS_SPEW, "%s\n", __func__);
+
+       disable_cache();
+
+       /* Enable access to AMD RdDram and WrDram extension bits */
+       msr_data = rdmsr(SYS_CFG);
+       msr_data.lo |= SYSCFG_MSR_MtrrFixDramModEn;
+       wrmsr(SYS_CFG, msr_data);
+
+       /* Now restore the Fixed MTRRs */
+       msr_data.lo = *msrPtr;
+       msrPtr ++;
+       msr_data.hi = *msrPtr;
+       msrPtr ++;
+       wrmsr(0x250, msr_data);
+
+       msr_data.lo = *msrPtr;
+       msrPtr ++;
+       msr_data.hi = *msrPtr;
+       msrPtr ++;
+       wrmsr(0x258, msr_data);
+
+       msr_data.lo = *msrPtr;
+       msrPtr ++;
+       msr_data.hi = *msrPtr;
+       msrPtr ++;
+       wrmsr(0x259, msr_data);
+
+       for (msr = 0x268; msr <= 0x26F; msr++) {
+               msr_data.lo = *msrPtr;
+               msrPtr ++;
+               msr_data.hi = *msrPtr;
+               msrPtr ++;
+               wrmsr(msr, msr_data);
+       }
+
+       /* Disable access to AMD RdDram and WrDram extension bits */
+       msr_data = rdmsr(SYS_CFG);
+       msr_data.lo &= ~SYSCFG_MSR_MtrrFixDramModEn;
+       wrmsr(SYS_CFG, msr_data);
+
+       /* Restore the Variable MTRRs */
+       for (msr = 0x200; msr <= 0x20F; msr++) {
+               msr_data.lo = *msrPtr;
+               msrPtr ++;
+               msr_data.hi = *msrPtr;
+               msrPtr ++;
+               wrmsr(msr, msr_data);
+       }
+
+       /* Restore SYSCFG MTRR */
+       msr_data.lo = *msrPtr;
+       msrPtr ++;
+       msr_data.hi = *msrPtr;
+       msrPtr ++;
+       wrmsr(SYS_CFG, msr_data);
+}
+
+inline void *backup_resume(void)
+{
+       unsigned long high_ram_base;
+       void *resume_backup_memory;
+
+       /* Start address of high memory tables */
+       high_ram_base = (u32) get_cbmem_toc();
+
+       /*
+        * printk(BIOS_DEBUG, "CBMEM TOC is at: %x\n", (u32_t)high_ram_base);
+        * printk(BIOS_DEBUG, "CBMEM TOC 0-size:%x\n ",(u32_t)(high_ram_base + 
HIGH_MEMORY_SIZE + 4096));
+        */
+
+       cbmem_reinit((u64) high_ram_base);
+
+       resume_backup_memory = cbmem_find(CBMEM_ID_RESUME);
+       if (((u32) resume_backup_memory == 0)
+           || ((u32) resume_backup_memory == -1)) {
+               printk(BIOS_ERR, "Error: resume_backup_memory: %x\n",
+                      (u32) resume_backup_memory);
+               for (;;) ;
+       }
+
+       return resume_backup_memory;
+}
+
+void move_stack_high_mem(void *resume_backup_memory)
+{
+#if 0
+       u32 *sp, index;
+       __asm__ volatile ("mov %%esp, %0":"=r" (sp)
+                         ::);
+       printk(BIOS_DEBUG, "%x:", (u32) sp);
+       printk(BIOS_DEBUG, "[%08x,%08x,%08x,%08x]\n", sp[0], sp[1], sp[2], 
sp[3]);
+       printk(BIOS_DEBUG, "%x:", (u32) (sp + 4));
+       printk(BIOS_DEBUG, "[%08x,%08x,%08x,%08x]\n", sp[4], sp[5], sp[6], 
sp[7]);
+       printk(BIOS_DEBUG, "%x:", (u32) (sp + 8));
+       printk(BIOS_DEBUG, "[%08x,%08x,%08x,%08x]\n", sp[8], sp[9], sp[10], 
sp[11]);
+#endif
+
+       memcpy(resume_backup_memory, (void *)BSP_STACK_BASE_ADDR,
+               (CONFIG_HIGH_SCRATCH_MEMORY_SIZE - BIOS_HEAP_SIZE));
+
+       __asm__
+           volatile ("add      %0, %%esp; add %0, %%ebp; invd"::"g"
+                     (resume_backup_memory - BSP_STACK_BASE_ADDR)
+                     :);
+
+#if 0
+       __asm__ volatile ("mov %%esp, %0":"=r" (sp)
+                         ::);
+       printk(BIOS_DEBUG, "%x:", (u32) sp);
+       printk(BIOS_DEBUG, "[%08x,%08x,%08x,%08x]\n", sp[0], sp[1], sp[2], 
sp[3]);
+       printk(BIOS_DEBUG, "%x:", (u32) (sp + 4));
+       printk(BIOS_DEBUG, "[%08x,%08x,%08x,%08x]\n", sp[4], sp[5], 
sp[6],sp[7]);
+       printk(BIOS_DEBUG, "%x:", (u32) (sp + 8));
+       printk(BIOS_DEBUG, "[%08x,%08x,%08x,%08x]\n", sp[8], sp[9], sp[10], 
sp[11]);
+#endif
+}
+
+void OemAgesaSaveMtrr(void)
+{
+#ifndef __PRE_RAM__
+       u32 spi_address;
+       msr_t  msr_data;
+       device_t dev;
+       u32 nvram_pos = S3_DATA_MTRR_POS;
+       u32 i;
+
+       dev = dev_find_slot(0, PCI_DEVFN(0x14, 3));
+       spi_address = pci_read_config32(dev, 0xA0) & ~0x1F;
+
+       /* Enable access to AMD RdDram and WrDram extension bits */
+       msr_data = rdmsr(SYS_CFG);
+       msr_data.lo |= SYSCFG_MSR_MtrrFixDramModEn;
+       wrmsr(SYS_CFG, msr_data);
+
+       /* Fixed MTRRs */
+       msr_data = rdmsr(0x250);
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.lo);
+       nvram_pos += 4;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.hi);
+       nvram_pos += 4;
+
+       msr_data = rdmsr(0x258);
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.lo);
+       nvram_pos += 4;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.hi);
+       nvram_pos += 4;
+
+       msr_data = rdmsr(0x259);
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.lo);
+       nvram_pos += 4;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.hi);
+       nvram_pos += 4;
+
+       for (i = 0x268; i < 0x270; i++) {
+               msr_data = rdmsr(i);
+               dword_noneAAI_program((u8 *) spi_address, nvram_pos, 
msr_data.lo);
+               nvram_pos += 4;
+               dword_noneAAI_program((u8 *) spi_address, nvram_pos, 
msr_data.hi);
+               nvram_pos += 4;
+       }
+
+       /* Disable access to AMD RdDram and WrDram extension bits */
+       msr_data = rdmsr(SYS_CFG);
+       msr_data.lo &= ~SYSCFG_MSR_MtrrFixDramModEn;
+       wrmsr(SYS_CFG, msr_data);
+
+       /* Variable MTRRs */
+       for (i = 0x200; i < 0x210; i++) {
+               msr_data = rdmsr(i);
+               dword_noneAAI_program((u8 *) spi_address, nvram_pos, 
msr_data.lo);
+               nvram_pos += 4;
+               dword_noneAAI_program((u8 *) spi_address, nvram_pos, 
msr_data.hi);
+               nvram_pos += 4;
+       }
+
+       /* SYS_CFG */
+       msr_data = rdmsr(0xC0010010);
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.lo);
+       nvram_pos += 4;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.hi);
+       nvram_pos += 4;
+
+       /* TOM */
+       msr_data = rdmsr(0xC001001A);
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.lo);
+       nvram_pos += 4;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.hi);
+       nvram_pos += 4;
+
+       /* TOM2 */
+       msr_data = rdmsr(0xC001001D);
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.lo);
+       nvram_pos += 4;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos, msr_data.hi);
+       nvram_pos += 4;
+
+#endif
+}
+
+void OemAgesaGetS3Info(S3_DATA_TYPE S3DataType, u32 *DataSize, void **Data)
+{
+       AMD_CONFIG_PARAMS StdHeader;
+       if (S3DataType == S3DataTypeNonVolatile) {
+               *Data = (void *)S3_DATA_NONVOLATILE_POS;
+               *DataSize = *(UINTN *) (*Data);
+               *Data += 4;
+       } else {
+               *DataSize = *(UINTN *) S3_DATA_VOLATILE_POS;
+               *Data = (void *) GetHeapBase(&StdHeader);
+               memcpy((void *)(*Data), (void *)(S3_DATA_VOLATILE_POS + 4), 
*DataSize);
+       }
+}
+
+u32 OemAgesaSaveS3Info(S3_DATA_TYPE S3DataType, u32 DataSize, void *Data)
+{
+
+       u32 pos = S3_DATA_VOLATILE_POS;
+#ifndef __PRE_RAM__
+       u32 spi_address, data;
+       u32 nvram_pos;
+       device_t dev;
+#endif
+
+       if (S3DataType == S3DataTypeNonVolatile) {
+               pos = S3_DATA_NONVOLATILE_POS;
+       } else {                /* S3DataTypeVolatile */
+               pos = S3_DATA_VOLATILE_POS;
+       }
+
+#ifndef __PRE_RAM__
+       dev = dev_find_slot(0, PCI_DEVFN(0x14, 3));
+       spi_address = pci_read_config32(dev, 0xA0) & ~0x1F;
+
+       /* printk(BIOS_DEBUG, "spi_address=%x\n", spi_address); */
+       read_spi_id((u8 *) spi_address);
+       write_spi_status((u8 *)spi_address, 0);
+       if (S3DataType == S3DataTypeNonVolatile) {
+               sector_erase_spi((u8 *) spi_address, S3_DATA_NONVOLATILE_POS);
+       } else {
+               sector_erase_spi((u8 *) spi_address, S3_DATA_VOLATILE_POS);
+               sector_erase_spi((u8 *) spi_address,
+                              S3_DATA_VOLATILE_POS + 0x1000);
+               sector_erase_spi((u8 *) spi_address,
+                              S3_DATA_VOLATILE_POS + 0x2000);
+               sector_erase_spi((u8 *) spi_address,
+                              S3_DATA_VOLATILE_POS + 0x3000);
+       }
+
+       nvram_pos = 0;
+       dword_noneAAI_program((u8 *) spi_address, nvram_pos + pos, DataSize);
+
+       for (nvram_pos = 0; nvram_pos < DataSize; nvram_pos += 4) {
+               data = *(u32 *) (Data + nvram_pos);
+               dword_noneAAI_program((u8 *) spi_address, nvram_pos + pos + 4,
+                                   *(u32 *) (Data + nvram_pos));
+       }
+#endif
+
+       return AGESA_SUCCESS;
+}
+
+void set_resume_cache(void)
+{
+       msr_t msr;
+
+       /* disable fixed mtrr for now,  it will be enabled by mtrr restore */
+       msr = rdmsr(SYSCFG_MSR);
+       msr.lo &= ~(SYSCFG_MSR_MtrrFixDramEn | SYSCFG_MSR_MtrrFixDramModEn);
+       wrmsr(SYSCFG_MSR, msr);
+
+       /* Enable caching for 0 - coreboot ram using variable mtrr */
+       msr.lo = 0 | MTRR_TYPE_WRBACK;
+       msr.hi = 0;
+       wrmsr(MTRRphysBase_MSR(0), msr);
+       msr.lo = ~(CONFIG_RAMTOP - 1) | MTRRphysMaskValid;
+       msr.hi = (1 << (CONFIG_CPU_ADDR_BITS - 32)) - 1;
+       wrmsr(MTRRphysMask_MSR(0), msr);
+
+       /* Set the default memory type and disable fixed and enable variable 
MTRRs */
+       msr.hi = 0;
+       msr.lo = (1 << 11);
+       wrmsr(MTRRdefType_MSR, msr);
+
+       enable_cache();
+}
+
+void s3_resume(void)
+{
+       int status;
+
+       printk(BIOS_DEBUG, "agesawrapper_amds3laterestore ");
+       status = agesawrapper_amds3laterestore();
+       if (status)
+               printk(BIOS_DEBUG, "error level: %x \n", (u32) status);
+       else
+               printk(BIOS_DEBUG, "passed.\n");
+}
diff --git a/src/cpu/amd/agesa/s3_resume.h b/src/cpu/amd/agesa/s3_resume.h
new file mode 100644
index 0000000..a62f90e
--- /dev/null
+++ b/src/cpu/amd/agesa/s3_resume.h
@@ -0,0 +1,42 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Advanced Micro Devices, Inc.
+ *
+ * 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
+ */
+
+#ifndef S3_RESUME_H
+#define S3_RESUME_H
+
+#define S3_DATA_NONVOLATILE_POS        0xFFFF4000
+#define S3_DATA_VOLATILE_POS   0xFFFF0000
+#define S3_DATA_MTRR_POS       0xFFFF3100
+
+typedef enum {
+       S3DataTypeNonVolatile=0,            ///< NonVolatile Data Type
+       S3DataTypeVolatile                  ///< Volatile Data Type
+} S3_DATA_TYPE;
+
+void restore_mtrr(void);
+void s3_resume(void);
+inline void *backup_resume(void);
+void set_resume_cache(void);
+void move_stack_high_mem(void *resume_backup_memory);
+
+u32 OemAgesaSaveS3Info (S3_DATA_TYPE S3DataType, u32 DataSize, void *Data);
+void OemAgesaGetS3Info (S3_DATA_TYPE S3DataType, u32 *DataSize, void **Data);
+void OemAgesaSaveMtrr (void);
+
+#endif
diff --git a/src/include/cbmem.h b/src/include/cbmem.h
index 9806854..4cb4ea3 100644
--- a/src/include/cbmem.h
+++ b/src/include/cbmem.h
@@ -25,11 +25,11 @@
 extern uint64_t high_tables_base, high_tables_size;
 
 #if CONFIG_HAVE_ACPI_RESUME
-#define HIGH_MEMORY_SIZE       ((CONFIG_RAMTOP - CONFIG_RAMBASE) + 
HIGH_MEMORY_DEF_SIZE)
-#define HIGH_MEMORY_SAVE       ( HIGH_MEMORY_SIZE - HIGH_MEMORY_DEF_SIZE )
-#else
+#define HIGH_MEMORY_SAVE       (CONFIG_RAMTOP - CONFIG_RAMBASE)
+#define HIGH_MEMORY_SIZE       (HIGH_MEMORY_SAVE + 
CONFIG_HIGH_SCRATCH_MEMORY_SIZE + HIGH_MEMORY_DEF_SIZE)
+#else /* CONFIG_HAVE_ACPI_RESUME */
 #define HIGH_MEMORY_SIZE       HIGH_MEMORY_DEF_SIZE
-#endif
+#endif /* CONFIG_HAVE_ACPI_RESUME */
 
 #define CBMEM_ID_FREESPACE     0x46524545
 #define CBMEM_ID_GDT           0x4c474454
diff --git a/src/northbridge/amd/agesa/Kconfig 
b/src/northbridge/amd/agesa/Kconfig
index 2ee921b..ebdda38 100644
--- a/src/northbridge/amd/agesa/Kconfig
+++ b/src/northbridge/amd/agesa/Kconfig
@@ -27,6 +27,10 @@ config CONSOLE_VGA_MULTI
        bool
        default n
 
+config S3_VGA_ROM_RUN
+       bool
+       default n
+
 source src/northbridge/amd/agesa/family10/Kconfig
 source src/northbridge/amd/agesa/family12/Kconfig
 source src/northbridge/amd/agesa/family14/Kconfig
diff --git a/src/northbridge/amd/agesa/family14/northbridge.c 
b/src/northbridge/amd/agesa/family14/northbridge.c
index 15efe12..2647814 100644
--- a/src/northbridge/amd/agesa/family14/northbridge.c
+++ b/src/northbridge/amd/agesa/family14/northbridge.c
@@ -745,20 +745,46 @@ static void domain_set_resources(device_t dev)
        printk(BIOS_DEBUG, "  adsr - leaving this lovely routine.\n");
 }
 
-static void domain_enable_resources(device_t dev) {
+extern u8 acpi_slp_type;
+
+static void domain_enable_resources(device_t dev)
+{
        u32 val;
 
 #if CONFIG_AMD_SB_CIMX
+  #if CONFIG_HAVE_ACPI_RESUME
+       if (acpi_slp_type != 3) {
+               sb_After_Pci_Init();
+               sb_Mid_Post_Init();
+       } else {
+               sb_After_Pci_Restore_Init();
+       }
+  #else
        sb_After_Pci_Init();
        sb_Mid_Post_Init();
+  #endif
 #endif
 
        /* Must be called after PCI enumeration and resource allocation */
        printk(BIOS_DEBUG, "\nFam14h - domain_enable_resources: AmdInitMid.\n");
-       val = agesawrapper_amdinitmid();
-       if (val) {
-               printk(BIOS_DEBUG, "agesawrapper_amdinitmid failed: %x \n", 
val);
+
+#if CONFIG_HAVE_ACPI_RESUME
+       if (acpi_slp_type != 3) {
+               printk(BIOS_DEBUG, "agesawrapper_amdinitmid ");
+               val = agesawrapper_amdinitmid ();
+               if (val)
+                       printk(BIOS_DEBUG, "error level: %x \n", val);
+               else
+                       printk(BIOS_DEBUG, "passed.\n");
        }
+#else
+       printk(BIOS_DEBUG, "agesawrapper_amdinitmid ");
+       val = agesawrapper_amdinitmid ();
+       if (val)
+               printk(BIOS_DEBUG, "error level: %x \n", val);
+       else
+               printk(BIOS_DEBUG, "passed.\n");
+#endif
 
        printk(BIOS_DEBUG, "  ader - leaving domain_enable_resources.\n");
 }
@@ -788,24 +814,41 @@ static void cpu_bus_set_resources(device_t dev) {
        pci_dev_set_resources(dev);
 }
 
-static void cpu_bus_init(device_t dev) {
-       struct device_path cpu_path;
+static u32 cpu_bus_scan(device_t dev, u32 max)
+{
        device_t cpu;
-       int apic_id;
+       struct device_path cpu_path;
+       int apic_id, cores_found;
 
-       initialize_cpus(dev->link_list);
+       /* There is only one node for fam14, but there may be multiple cores. */
+       cpu = dev_find_slot(0, PCI_DEVFN(0x18, 0));
+       if (!cpu)
+               printk(BIOS_ERR, "ERROR: %02x:%02x.0 not found", 0, 0x18);
 
-       /* Build the AP cpu device path(s) */
-       for (apic_id = 1; apic_id < CONFIG_MAX_CPUS; apic_id++) {
+       cores_found = (pci_read_config32(dev_find_slot(0,PCI_DEVFN(0x18,0x3)), 
0xe8) >> 12) & 3;
+       printk(BIOS_DEBUG, "  AP siblings=%d\n", cores_found);
+
+
+       for (apic_id = 0; apic_id <= cores_found; apic_id++) {
                cpu_path.type = DEVICE_PATH_APIC;
                cpu_path.apic.apic_id = apic_id;
-               cpu = alloc_dev(dev->link_list, &cpu_path);
-               if (!cpu)
-                       return;
-               cpu->enabled = 1;
-               cpu->path.apic.node_id = 0;
-               cpu->path.apic.core_id = apic_id;
+               cpu = alloc_find_dev(dev->link_list, &cpu_path);
+               if (cpu) {
+                       cpu->enabled = 1;
+                       cpu->path.apic.node_id = 0;
+                       cpu->path.apic.core_id = apic_id;
+                       printk(BIOS_DEBUG, "CPU: %s %s\n",
+                                       dev_path(cpu), 
cpu->enabled?"enabled":"disabled");
+               } else {
+                       cpu->enabled = 0;
+               }
        }
+       return max;
+}
+
+static void cpu_bus_init(device_t dev)
+{
+       initialize_cpus(dev->link_list);
 }
 
 /* North Bridge Structures */
@@ -844,7 +887,7 @@ static struct device_operations cpu_bus_ops = {
        .set_resources = cpu_bus_set_resources,
        .enable_resources = NULL,
        .init = cpu_bus_init,
-       .scan_bus = NULL,
+       .scan_bus = cpu_bus_scan,
 };
 
 static void root_complex_enable_dev(struct device *dev) {

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