diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2013-06-10 10:21:41 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-11-26 19:10:20 +0100 |
| commit | d5686fe23b1341ca2c72b2941cf80577e6198f23 (patch) | |
| tree | 819063f0c73d7009f946ef8f20fd3e7ff1acaa9b /src/arch/x86 | |
| parent | e807c34a5e34e8dd7cb959458de593ea1070fde4 (diff) | |
Extend CMOS POST code logging to store extra data
This can be used to indicate sub-state within a POST
code range which can assist in debugging BIOS hangs.
For example this can be used to indicate which device
is about to be initialized so if the system hangs
while talking to that device it can be identified.
Change-Id: I2f8155155f09fe9e242ebb7204f0b5cba3a1fa1e
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58104
Reviewed-on: http://review.coreboot.org/4229
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/include/bootblock_common.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/arch/x86/include/bootblock_common.h b/src/arch/x86/include/bootblock_common.h index 11fb230b58..4926086bce 100644 --- a/src/arch/x86/include/bootblock_common.h +++ b/src/arch/x86/include/bootblock_common.h @@ -65,6 +65,10 @@ static void cmos_post_init(void) /* Initialize to zero */ cmos_write(0, CMOS_POST_BANK_0_OFFSET); cmos_write(0, CMOS_POST_BANK_1_OFFSET); +#if CONFIG_CMOS_POST_EXTRA + cmos_write32(CMOS_POST_BANK_0_EXTRA, 0); + cmos_write32(CMOS_POST_BANK_1_EXTRA, 0); +#endif } cmos_write(magic, CMOS_POST_BANK_OFFSET); |