Comments
Patch
===================================================================
@@ -190,6 +190,7 @@
/** @} */
/* drivers/option.c */
+void fix_options_checksum(void);
int get_option(void *dest, char *name);
/**
===================================================================
@@ -48,6 +48,23 @@
return (checksum_old == checksum);
}
+void fix_options_checksum(void)
+{
+ int i;
+ int range_start = lib_sysinfo.cmos_range_start / 8;
+ int range_end = lib_sysinfo.cmos_range_end / 8;
+ int checksum_location = lib_sysinfo.cmos_checksum_location / 8;
+ u16 checksum = 0;
+
+ 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);
+}
+
static int get_cmos_value(u32 bitnum, u32 len, void *valptr)
{
u8 *value = (u8 *)valptr;
See patch. libpayload: Add function to fix CMOS checksum. Signed-off-by: Stefan Reinauer <stepan@coresystems.de>