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From 38e3b0862f6e914b010c004ff03cb9063452e26c Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Sat, 5 Sep 2015 18:39:34 -0500
Subject: [PATCH 018/139] northbridge/amd/amdfam10: Add Suspend to RAM (S3)
Flash data storage area
Change-Id: I169fafc3a61e11c3e4781190053e57bf34502d7b
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
src/northbridge/amd/amdfam10/Kconfig | 6 ++++
src/northbridge/amd/amdfam10/Makefile.inc | 19 ++++++++++
src/northbridge/amd/amdfam10/raminit_amdmct.c | 50 +++++++++++++++------------
3 files changed, 53 insertions(+), 22 deletions(-)
diff --git a/src/northbridge/amd/amdfam10/Kconfig b/src/northbridge/amd/amdfam10/Kconfig
index 4d7147d..ff92fca 100644
--- a/src/northbridge/amd/amdfam10/Kconfig
+++ b/src/northbridge/amd/amdfam10/Kconfig
@@ -89,6 +89,12 @@ if DIMM_FBDIMM
default 0x0110
endif
+if HAVE_ACPI_RESUME
+ config S3_DATA_SIZE
+ int
+ default 16384
+endif
+
if DIMM_DDR2
if DIMM_REGISTERED
config DIMM_SUPPORT
diff --git a/src/northbridge/amd/amdfam10/Makefile.inc b/src/northbridge/amd/amdfam10/Makefile.inc
index 8a105fd..b4097b4 100644
--- a/src/northbridge/amd/amdfam10/Makefile.inc
+++ b/src/northbridge/amd/amdfam10/Makefile.inc
@@ -15,4 +15,23 @@ ramstage-y += get_pci1234.c
# Call show_all_routes() anywhere amdfam10.h is included.
#ramstage-y += util.c
+ifeq ($(CONFIG_HAVE_ACPI_RESUME), y)
+
+$(obj)/coreboot_s3nv.rom: $(obj)/config.h
+ echo " S3 NVRAM $(CONFIG_S3_DATA_POS) (S3 storage area)"
+ # force C locale, so cygwin awk doesn't try to interpret the 0xff below as UTF-8 (or worse)
+ printf %d $(CONFIG_S3_DATA_SIZE) | LC_ALL=C awk '{for (i=0; i<$$1*2; i++) {printf "%c", 255}}' > $@.tmp
+ mv $@.tmp $@
+
+cbfs-files-y += s3nv
+s3nv-file := $(obj)/coreboot_s3nv.rom
+s3nv-position := $(CONFIG_S3_DATA_POS)
+s3nv-type := raw
+
+ifeq ($(CONFIG_DIMM_DDR3), y)
+ramstage-y += ../amdmct/mct_ddr3/s3utils.c
+endif
+
+endif
+
endif
diff --git a/src/northbridge/amd/amdfam10/raminit_amdmct.c b/src/northbridge/amd/amdfam10/raminit_amdmct.c
index 3f33eba..5068e7a 100644
--- a/src/northbridge/amd/amdfam10/raminit_amdmct.c
+++ b/src/northbridge/amd/amdfam10/raminit_amdmct.c
@@ -110,6 +110,10 @@ static uint16_t mct_MaxLoadFreq(uint8_t count, uint8_t registered, uint16_t freq
#include "../amdmct/mct_ddr3/mct_d.h"
#include "../amdmct/mct_ddr3/mct_d_gcc.h"
+#if IS_ENABLED(CONFIG_HAVE_ACPI_RESUME)
+#include "../amdmct/mct_ddr3/s3utils.c"
+#endif
+
#include "../amdmct/wrappers/mcti_d.c"
#include "../amdmct/mct_ddr3/mct_d.c"
@@ -249,33 +253,35 @@ static void amdmct_cbmem_store_info(struct sys_info *sysinfo)
size_t i;
struct DCTStatStruc *pDCTstatA = NULL;
- /* Allocate memory */
- struct amdmct_memory_info* mem_info;
- mem_info = cbmem_add(CBMEM_ID_AMDMCT_MEMINFO, sizeof(struct amdmct_memory_info));
- if (!mem_info)
- return;
+ if (!acpi_is_wakeup_s3()) {
+ /* Allocate memory */
+ struct amdmct_memory_info* mem_info;
+ mem_info = cbmem_add(CBMEM_ID_AMDMCT_MEMINFO, sizeof(struct amdmct_memory_info));
+ if (!mem_info)
+ return;
- printk(BIOS_DEBUG, "%s: Storing AMDMCT configuration in CBMEM\n", __func__);
+ printk(BIOS_DEBUG, "%s: Storing AMDMCT configuration in CBMEM\n", __func__);
- /* Initialize memory */
- memset(mem_info, 0, sizeof(struct amdmct_memory_info));
+ /* Initialize memory */
+ memset(mem_info, 0, sizeof(struct amdmct_memory_info));
- /* Copy data */
- memcpy(&mem_info->mct_stat, &(sysinfo->MCTstat), sizeof(struct MCTStatStruc));
- for (i = 0; i < MAX_NODES_SUPPORTED; i++) {
- pDCTstatA = sysinfo->DCTstatA + i;
- memcpy(&mem_info->dct_stat[i], pDCTstatA, sizeof(struct DCTStatStruc));
- }
- mem_info->ecc_enabled = mctGet_NVbits(NV_ECC_CAP);
- mem_info->ecc_scrub_rate = mctGet_NVbits(NV_DramBKScrub);
+ /* Copy data */
+ memcpy(&mem_info->mct_stat, &(sysinfo->MCTstat), sizeof(struct MCTStatStruc));
+ for (i = 0; i < MAX_NODES_SUPPORTED; i++) {
+ pDCTstatA = sysinfo->DCTstatA + i;
+ memcpy(&mem_info->dct_stat[i], pDCTstatA, sizeof(struct DCTStatStruc));
+ }
+ mem_info->ecc_enabled = mctGet_NVbits(NV_ECC_CAP);
+ mem_info->ecc_scrub_rate = mctGet_NVbits(NV_DramBKScrub);
- /* Zero out invalid/unused pointers */
+ /* Zero out invalid/unused pointers */
#if IS_ENABLED(CONFIG_DIMM_DDR3)
- for (i = 0; i < MAX_NODES_SUPPORTED; i++) {
- mem_info->dct_stat[i].C_MCTPtr = NULL;
- mem_info->dct_stat[i].C_DCTPtr[0] = NULL;
- mem_info->dct_stat[i].C_DCTPtr[1] = NULL;
- }
+ for (i = 0; i < MAX_NODES_SUPPORTED; i++) {
+ mem_info->dct_stat[i].C_MCTPtr = NULL;
+ mem_info->dct_stat[i].C_DCTPtr[0] = NULL;
+ mem_info->dct_stat[i].C_DCTPtr[1] = NULL;
+ }
#endif
+ }
}
#endif
--
1.9.1
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