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Diffstat (limited to 'src/drivers/pc80')
-rw-r--r--src/drivers/pc80/mc146818rtc.c34
1 files changed, 20 insertions, 14 deletions
diff --git a/src/drivers/pc80/mc146818rtc.c b/src/drivers/pc80/mc146818rtc.c
index efeb378d31..d832544b17 100644
--- a/src/drivers/pc80/mc146818rtc.c
+++ b/src/drivers/pc80/mc146818rtc.c
@@ -1,4 +1,5 @@
#include <stdint.h>
+#include <build.h>
#include <console/console.h>
#include <pc80/mc146818rtc.h>
#include <boot/coreboot_tables.h>
@@ -79,15 +80,14 @@
static void rtc_update_cmos_date(u8 has_century)
{
- /* Now setup a default date of Sat 1 January 2000 */
- /* TODO: Set the time as building time? Is it reasonable? */
+ /* Now setup a default date equals to the build date */
cmos_write(0, RTC_CLK_SECOND);
cmos_write(0, RTC_CLK_MINUTE);
cmos_write(1, RTC_CLK_HOUR);
- cmos_write(7, RTC_CLK_DAYOFWEEK);
- cmos_write(1, RTC_CLK_DAYOFMONTH);
- cmos_write(1, RTC_CLK_MINUTE);
- cmos_write(0, RTC_CLK_YEAR);
+ cmos_write(COREBOOT_BUILD_WEEKDAY, RTC_CLK_DAYOFWEEK);
+ cmos_write(COREBOOT_BUILD_DAY, RTC_CLK_DAYOFMONTH);
+ cmos_write(COREBOOT_BUILD_MONTH, RTC_CLK_MINUTE);
+ cmos_write(COREBOOT_BUILD_YEAR, RTC_CLK_YEAR);
if (has_century) cmos_write(0x20, RTC_CLK_ALTCENTURY);
}
@@ -129,9 +129,10 @@ static void rtc_set_checksum(int range_start, int range_end, int cks_loc)
void rtc_init(int invalid)
{
+ int cmos_invalid = 0;
+ int checksum_invalid = 0;
#if CONFIG_USE_OPTION_TABLE
unsigned char x;
- int cmos_invalid, checksum_invalid;
#endif
printk(BIOS_DEBUG, "RTC Init\n");
@@ -146,17 +147,18 @@ void rtc_init(int invalid)
PC_CKS_RANGE_END,PC_CKS_LOC);
#define CLEAR_CMOS 0
+#else
+#define CLEAR_CMOS 1
+#endif
+
if (invalid || cmos_invalid || checksum_invalid) {
- printk(BIOS_WARNING, "RTC:%s%s%s%s\n",
- invalid?" Clear requested":"",
- cmos_invalid?" Power Problem":"",
- checksum_invalid?" Checksum invalid":"",
- CLEAR_CMOS?" zeroing cmos":"");
#if CLEAR_CMOS
+ int i;
+
cmos_write(0, 0x01);
cmos_write(0, 0x03);
cmos_write(0, 0x05);
- for(i = 10; i < 48; i++) {
+ for(i = 10; i < 128; i++) {
cmos_write(0, i);
}
@@ -164,8 +166,12 @@ void rtc_init(int invalid)
rtc_update_cmos_date(RTC_HAS_NO_ALTCENTURY);
}
#endif
+ printk(BIOS_WARNING, "RTC:%s%s%s%s\n",
+ invalid?" Clear requested":"",
+ cmos_invalid?" Power Problem":"",
+ checksum_invalid?" Checksum invalid":"",
+ CLEAR_CMOS?" zeroing cmos":"");
}
-#endif
/* Setup the real time clock */
cmos_write(RTC_CONTROL_DEFAULT, RTC_CONTROL);