diff options
author | Eric Biederman <ebiederm@xmission.com> | 2003-04-22 19:02:15 +0000 |
---|---|---|
committer | Eric Biederman <ebiederm@xmission.com> | 2003-04-22 19:02:15 +0000 |
commit | 8ca8d7665d671e10d72b8fcb4d69121d75f7906e (patch) | |
tree | daad2699b4e6b6014bce5a76e82dd9c974801777 /src/lib/fallback_boot.c | |
parent | b138ac83b53da9abf3dc9a87a1cd4b3d3a8150bd (diff) | |
download | coreboot-staging-8ca8d7665d671e10d72b8fcb4d69121d75f7906e.zip coreboot-staging-8ca8d7665d671e10d72b8fcb4d69121d75f7906e.tar.gz |
- Initial checkin of the freebios2 tree
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@784 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/lib/fallback_boot.c')
-rw-r--r-- | src/lib/fallback_boot.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/lib/fallback_boot.c b/src/lib/fallback_boot.c new file mode 100644 index 0000000..1bddd0a --- /dev/null +++ b/src/lib/fallback_boot.c @@ -0,0 +1,25 @@ +#include <console/console.h> +#include <part/fallback_boot.h> +#include <pc80/mc146818rtc.h> +#include <arch/io.h> + +void boot_successful(void) +{ + /* Remember I succesfully booted by setting + * the initial boot direction + * to the direction that I booted. + */ + unsigned char index, byte; + index = inb(RTC_PORT(0)) & 0x80; + index |= RTC_BOOT_BYTE; + outb(index, RTC_PORT(0)); + + byte = inb(RTC_PORT(1)); + byte &= 0xfe; + byte |= (byte & 2) >> 1; + + /* If we are in normal mode set the boot count to 0 */ + if(byte & 1) + byte &= 0x0f; + outb(byte, RTC_PORT(1)); +} |