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Diffstat (limited to 'src/pc80/mc146818rtc_early.c')
-rw-r--r--src/pc80/mc146818rtc_early.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/pc80/mc146818rtc_early.c b/src/pc80/mc146818rtc_early.c
index 7a1492102a..87fc3f0a61 100644
--- a/src/pc80/mc146818rtc_early.c
+++ b/src/pc80/mc146818rtc_early.c
@@ -1,5 +1,8 @@
#include <pc80/mc146818rtc.h>
#include <fallback.h>
+#if CONFIG_HAVE_OPTION_TABLE
+#include <option_table.h>
+#endif
#ifndef CONFIG_MAX_REBOOT_CNT
#error "CONFIG_MAX_REBOOT_CNT not defined"
@@ -40,6 +43,7 @@ static int cmos_error(void)
static int cmos_chksum_valid(void)
{
+#if CONFIG_HAVE_OPTION_TABLE == 1
unsigned char addr;
unsigned long sum, old_sum;
sum = 0;
@@ -54,6 +58,9 @@ static int cmos_chksum_valid(void)
old_sum |= cmos_read(LB_CKS_LOC+1);
return sum == old_sum;
+#else
+ return 0;
+#endif
}