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authorStefan Reinauer <reinauer@chromium.org>2011-10-21 14:37:52 -0700
committerPatrick Georgi <patrick@georgi-clan.de>2011-10-22 18:41:32 +0200
commitd7ecfa7c152da59cf76b5dfd8ff4ef1313a74260 (patch)
treef302c60292ada53d8c26a669747515c2446787a3 /payloads/libpayload/drivers/options.c
parent1c795ad109bd382ff75e92d83f5721b8ed7c3be1 (diff)
Fix CMOS checksum calculation in libpayload.
Change-Id: I64ea53fa098fbcfc76e0ebd5f049a2ee3d0a1024 Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/314 Tested-by: build bot (Jenkins) Reviewed-by: Marc Jones <marcj303@gmail.com>
Diffstat (limited to 'payloads/libpayload/drivers/options.c')
-rw-r--r--payloads/libpayload/drivers/options.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/payloads/libpayload/drivers/options.c b/payloads/libpayload/drivers/options.c
index fdb4be34bb..394c7920ec 100644
--- a/payloads/libpayload/drivers/options.c
+++ b/payloads/libpayload/drivers/options.c
@@ -41,7 +41,6 @@ static int options_checksum_valid(void)
for(i = range_start; i <= range_end; i++) {
checksum += nvram_read(i);
}
- checksum = (~checksum)&0xffff;
checksum_old = ((nvram_read(checksum_location)<<8) | nvram_read(checksum_location+1));
@@ -59,7 +58,6 @@ void fix_options_checksum(void)
for(i = range_start; i <= range_end; i++) {
checksum += nvram_read(i);
}
- checksum = (~checksum)&0xffff;
nvram_write((checksum >> 8), checksum_location);
nvram_write((checksum & 0xff), checksum_location + 1);