summaryrefslogtreecommitdiff
path: root/src/cpu
diff options
context:
space:
mode:
authorKyösti Mälkki <kyosti.malkki@gmail.com>2014-06-18 09:55:26 +0300
committerKyösti Mälkki <kyosti.malkki@gmail.com>2014-07-03 09:45:58 +0200
commit23b4f0c7344c199d5adb0aece8d3ca9a624f4a34 (patch)
treed0a6438659687131cc685fdc4af44a973cb7d3af /src/cpu
parent31eff28f4f47a38f6e25c93d76f52fe19a092545 (diff)
downloadcoreboot-23b4f0c7344c199d5adb0aece8d3ca9a624f4a34.tar.xz
AGESA boards: Add prepare_for_resume()
Use one common implementation for all AGESA platforms. Change-Id: I410f8e0a9c75445882d67659cde00004eb7ad6b4 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/6084 Tested-by: build bot (Jenkins) Reviewed-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/cpu')
-rw-r--r--src/cpu/amd/agesa/s3_resume.c42
-rw-r--r--src/cpu/amd/agesa/s3_resume.h5
2 files changed, 31 insertions, 16 deletions
diff --git a/src/cpu/amd/agesa/s3_resume.c b/src/cpu/amd/agesa/s3_resume.c
index 2efe6be0cb..42447862eb 100644
--- a/src/cpu/amd/agesa/s3_resume.c
+++ b/src/cpu/amd/agesa/s3_resume.c
@@ -22,6 +22,7 @@
#include <console/console.h>
#include <cpu/x86/msr.h>
#include <cpu/x86/mtrr.h>
+#include <cpu/amd/car.h>
#include <cpu/amd/mtrr.h>
#include <cpu/x86/cache.h>
#include <cbmem.h>
@@ -142,7 +143,8 @@ void restore_mtrr(void)
wrmsr(SYS_CFG, msr_data);
}
-void *backup_resume(void)
+#ifdef __PRE_RAM__
+static void *backup_resume(void)
{
void *resume_backup_memory;
@@ -160,7 +162,7 @@ void *backup_resume(void)
return resume_backup_memory;
}
-void move_stack_high_mem(void)
+static void move_stack_high_mem(void)
{
void *high_stack;
@@ -173,6 +175,7 @@ void move_stack_high_mem(void)
(high_stack - BSP_STACK_BASE_ADDR)
:);
}
+#endif
#ifndef __PRE_RAM__
static void write_mtrr(struct spi_flash *flash, u32 *p_nvram_pos, unsigned idx)
@@ -306,7 +309,8 @@ u32 OemAgesaSaveS3Info(S3_DATA_TYPE S3DataType, u32 DataSize, void *Data)
}
#endif
-void set_resume_cache(void)
+#ifdef __PRE_RAM__
+static void set_resume_cache(void)
{
msr_t msr;
@@ -331,14 +335,28 @@ void set_resume_cache(void)
enable_cache();
}
-void s3_resume(void)
+void prepare_for_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");
+ printk(BIOS_DEBUG, "Find resume memory location\n");
+ void *resume_backup_memory = backup_resume();
+
+ post_code(0x62);
+ printk(BIOS_DEBUG, "Move CAR stack.\n");
+ move_stack_high_mem();
+ printk(BIOS_DEBUG, "stack moved to: 0x%x\n", (u32) (resume_backup_memory + HIGH_MEMORY_SAVE));
+
+ post_code(0x63);
+ disable_cache_as_ram();
+ printk(BIOS_DEBUG, "CAR disabled.\n");
+ set_resume_cache();
+
+ /*
+ * Copy the system memory that is in the ramstage area to the
+ * reserved area.
+ */
+ if (resume_backup_memory)
+ memcpy(resume_backup_memory, (void *)(CONFIG_RAMBASE), HIGH_MEMORY_SAVE);
+
+ printk(BIOS_DEBUG, "System memory saved. OK to load ramstage.\n");
}
+#endif
diff --git a/src/cpu/amd/agesa/s3_resume.h b/src/cpu/amd/agesa/s3_resume.h
index fd3f29ea4c..b72e8a2600 100644
--- a/src/cpu/amd/agesa/s3_resume.h
+++ b/src/cpu/amd/agesa/s3_resume.h
@@ -27,10 +27,7 @@ typedef enum {
} S3_DATA_TYPE;
void restore_mtrr(void);
-void s3_resume(void);
-void *backup_resume(void);
-void set_resume_cache(void);
-void move_stack_high_mem(void);
+void prepare_for_resume(void);
u32 OemAgesaSaveS3Info (S3_DATA_TYPE S3DataType, u32 DataSize, void *Data);
void OemAgesaGetS3Info (S3_DATA_TYPE S3DataType, u32 *DataSize, void **Data);