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>
diff --git a/payloads/libpayload/drivers/options.c b/payloads/libpayload/drivers/options.c
index fdb4be3..394c792 100644
--- a/payloads/libpayload/drivers/options.c
+++ b/payloads/libpayload/drivers/options.c
@@ -41,7 +41,6 @@
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 @@
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);