sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

amdfwtool: Add support for AMD's BIOS A/B recovery feature

Browse Source 
The rom layout for A/B recovery:
EFS -> PSP L1 0x48 -> PSP L2 A -> BIOS L2 A
              0x4A -> PSP L2 B -> BIOS L2 B

The coreboot doesn't implement the AMD's A/B recovery. This is only
for the ROM layout. To save some flash space, the entire B section can
be eliminated.

To enable A/B recovery in PSP layout, add "--recovery-ab" to
amdfwtool.

TEST=Majolica(Cezanne)

Change-Id: I27f5d3476f648fcecafb8d258ccb6cfad4f50036
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56773
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Zheng Bao
2021-09-17 13:24:54 +08:00
committed by Felix Held
parent 1a9e54302b
commit 990d154898
3 changed files with 217 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
util/amdfwtool/amdfwtool.h
View File

@@ -43,6 +43,9 @@ typedef enum _amd_fw_type {
AMD_FW_USB_PHY = 0x44,
AMD_FW_TOS_SEC_POLICY = 0x45,
AMD_FW_DRTM_TA = 0x47,
AMD_FW_RECOVERYAB_A = 0x48,
AMD_FW_RECOVERYAB_B = 0x4A,
AMD_FW_BIOS_TABLE = 0x49,
AMD_FW_KEYDB_BL = 0x50,
AMD_FW_KEYDB_TOS = 0x51,
AMD_FW_PSP_VERSTAGE = 0x52,
@@ -209,7 +212,10 @@ typedef struct _bios_directory_table {
#define BDT_LVL1 (1 << 0)
#define BDT_LVL2 (1 << 1)
#define BDT_LVL1_AB (1 << 2)
#define BDT_LVL2_AB (1 << 3)
#define BDT_BOTH (BDT_LVL1 | BDT_LVL2)
#define BDT_BOTH_AB (BDT_LVL1_AB | BDT_LVL2_AB)
typedef struct _amd_bios_entry {
amd_bios_type type;
char *filename;
@@ -235,7 +241,10 @@ typedef struct _amd_bios_entry {
#define PSP_LVL1 (1 << 0)
#define PSP_LVL2 (1 << 1)
#define PSP_LVL1_AB (1 << 2)
#define PSP_LVL2_AB (1 << 3)
#define PSP_BOTH (PSP_LVL1 | PSP_LVL2)
#define PSP_BOTH_AB (PSP_LVL1_AB | PSP_LVL2_AB)
typedef struct _amd_fw_entry {
amd_fw_type type;
char *filename;
@@ -252,6 +261,7 @@ typedef struct _amd_cb_config {
bool multi_level;
bool s0i3;
bool have_mb_spl;
bool recovery_ab;
} amd_cb_config;
void register_fw_fuse(char *str);