diff options
| author | Zheng Bao <fishbaozi@gmail.com> | 2021-06-04 19:03:10 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-07-08 16:04:09 +0000 |
| commit | 0fc87e31e0b9ad15dd199fe96189a2ade6abf240 (patch) | |
| tree | 07669605f1473fb15d916e68a25ef452616cfe0e /util/amdfwtool | |
| parent | 595b940ef07b936e152ccc0f14aebb5508393434 (diff) | |
amdfwtool: Use relative address for EFS gen2
The second generation EFS (offset 0x24[0]=0) uses
"binary relative" offsets and not "x86 physical
MMIO address" like gen1.
Chips like Cezanne can run in both cases, so no problem
comes up so far.
BUG=b:188754219
Test=Majolica (Cezanne)
Change-Id: I3a54f8ce5004915a7fa407dcd7d59a64d88aad0d
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'util/amdfwtool')
| -rw-r--r-- | util/amdfwtool/amdfwtool.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c index 1e75278b5e..9299aecec6 100644 --- a/util/amdfwtool/amdfwtool.c +++ b/util/amdfwtool/amdfwtool.c @@ -343,11 +343,12 @@ amd_bios_entry amd_bios_table[] = { typedef struct _context { char *rom; /* target buffer, size of flash device */ uint32_t rom_size; /* size of flash device */ + uint32_t abs_address; /* produce absolute or relative address */ uint32_t current; /* pointer within flash & proxy buffer */ } context; #define RUN_BASE(ctx) (0xFFFFFFFF - (ctx).rom_size + 1) -#define RUN_OFFSET(ctx, offset) (RUN_BASE(ctx) + (offset)) +#define RUN_OFFSET(ctx, offset) ((ctx).abs_address ? RUN_BASE(ctx) + (offset) : (offset)) #define RUN_CURRENT(ctx) RUN_OFFSET((ctx), (ctx).current) #define BUFF_OFFSET(ctx, offset) ((void *)((ctx).rom + (offset))) #define BUFF_CURRENT(ctx) BUFF_OFFSET((ctx), (ctx).current) @@ -1536,8 +1537,6 @@ int main(int argc, char **argv) romsig_offset = ctx.current = dir_location - rom_base_address; else romsig_offset = ctx.current = AMD_ROMSIG_OFFSET; - printf(" AMDFWTOOL Using firmware directory location of 0x%08x\n", - RUN_CURRENT(ctx)); amd_romsig = BUFF_OFFSET(ctx, romsig_offset); amd_romsig->signature = EMBEDDED_FW_SIGNATURE; @@ -1556,6 +1555,13 @@ int main(int argc, char **argv) fprintf(stderr, "WARNING: No SOC name specified.\n"); } + if (amd_romsig->efs_gen.gen == EFS_SECOND_GEN) + ctx.abs_address = 0; + else + ctx.abs_address = 1; + printf(" AMDFWTOOL Using firmware directory location of %s address: 0x%08x\n", + ctx.abs_address == 1 ? "absolute" : "relative", RUN_CURRENT(ctx)); + integrate_firmwares(&ctx, amd_romsig, amd_fw_table); ctx.current = ALIGN(ctx.current, 0x10000U); /* TODO: is it necessary? */ |