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authorDuncan Laurie <dlaurie@chromium.org>2013-06-10 10:21:41 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2013-11-26 19:10:20 +0100
commitd5686fe23b1341ca2c72b2941cf80577e6198f23 (patch)
tree819063f0c73d7009f946ef8f20fd3e7ff1acaa9b /src/arch
parente807c34a5e34e8dd7cb959458de593ea1070fde4 (diff)
downloadcoreboot-d5686fe23b1341ca2c72b2941cf80577e6198f23.tar.xz
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')
-rw-r--r--src/arch/x86/include/bootblock_common.h4
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);