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-rw-r--r--src/include/pc80/mc146818rtc.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/include/pc80/mc146818rtc.h b/src/include/pc80/mc146818rtc.h
index 032e3858bf..0abb2a6b4b 100644
--- a/src/include/pc80/mc146818rtc.h
+++ b/src/include/pc80/mc146818rtc.h
@@ -81,6 +81,14 @@
#define PC_CKS_RANGE_END 45
#define PC_CKS_LOC 46
+/* coreboot cmos checksum is usually only built over bytes 49..125
+ * LB_CKS_RANGE_START, LB_CKS_RANGE_END and LB_CKS_LOC are defined
+ * in option_table.h
+ */
+#if CONFIG_HAVE_OPTION_TABLE
+#include <option_table.h>
+#endif
+
#ifndef UTIL_BUILD_OPTION_TABLE
#include <arch/io.h>
static inline unsigned char cmos_read(unsigned char addr)