add cmos checksum range to linuxbios table

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2125 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 20 insertions, 0 deletions

diff --git a/src/arch/i386/boot/linuxbios_table.c b/src/arch/i386/boot/linuxbios_table.c
index 10d3b0ce9d..a625fe0473 100644
--- a/src/arch/i386/boot/linuxbios_table.c
+++ b/src/arch/i386/boot/linuxbios_table.c
@@ -98,6 +98,24 @@ struct lb_mainboard *lb_mainboard(struct lb_header *header)
 	return mainboard;
 }
 
+struct cmos_checksum *lb_cmos_checksum(struct lb_header *header)
+{
+	struct lb_record *rec;
+	struct cmos_checksum *cmos_checksum;
+	rec = lb_new_record(header);
+	cmos_checksum = (struct cmos_checksum *)rec;
+	cmos_checksum->tag = LB_TAG_OPTION_CHECKSUM;
+
+	cmos_checksum->size = (sizeof(*cmos_checksum));
+
+	cmos_checksum->range_start = LB_CKS_RANGE_START * 8;
+	cmos_checksum->range_end = ( LB_CKS_RANGE_END * 8 ) + 7;
+	cmos_checksum->location = LB_CKS_LOC * 8;
+	cmos_checksum->type = CHECKSUM_PCBIOS;
+	
+	return cmos_checksum;
+}
+
 void lb_strings(struct lb_header *header)
 {
 	static const struct {
@@ -346,6 +364,8 @@ unsigned long write_linuxbios_table(
 		rec_dest = lb_new_record(head);
 		rec_src = (struct lb_record *)(void *)&option_table;
 		memcpy(rec_dest,  rec_src, rec_src->size);
+		/* Create cmos checksum entry in linuxbios table */
+		lb_cmos_checksum(head);
 	}
 	/* Record where RAM is located */
 	mem = build_lb_mem(head);