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| author | Patrick Georgi <patrick.georgi@secunet.com> | 2011-03-08 07:50:43 +0000 |
|---|---|---|
| committer | Patrick Georgi <patrick.georgi@coresystems.de> | 2011-03-08 07:50:43 +0000 |
| commit | fab35e3f73ba149eb109c24a8f906347b877d2ea (patch) | |
| tree | 82ac7ab90045bc1edc8c8ee477b5bcd54c37ef7a /src/arch/x86/lib | |
| parent | 85e666dc37183c491227b794debb24e03a909ac1 (diff) | |
| download | coreboot-fab35e3f73ba149eb109c24a8f906347b877d2ea.tar.xz | |
Move cmos.default handling to bootblock
The cmos.default code wasn't actually used so far, due to an oversight
when forward-porting this feature from an old branch.
- Extend walkcbfs' use by factoring out the stage handling into C code.
- New sanitize_cmos() function that looks if CMOS data is invalid and
cmos.default exists and if so overwrites CMOS with cmos.default data.
- Use sanitize_cmos() in both bootblock implementations.
- Drop the need to reboot after writing CMOS: CMOS wasn't used so far,
so we can go on without a reboot.
- Remove the restriction that cmos.default only works on CAR boards.
- Always build in cmos.default support on boards that
USE_OPTION_TABLE.
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6436 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/x86/lib')
| -rw-r--r-- | src/arch/x86/lib/walkcbfs.S | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/src/arch/x86/lib/walkcbfs.S b/src/arch/x86/lib/walkcbfs.S index 395c46e20c..27d82ae742 100644 --- a/src/arch/x86/lib/walkcbfs.S +++ b/src/arch/x86/lib/walkcbfs.S @@ -15,19 +15,13 @@ #define CBFS_FILE_STRUCTSIZE (CBFS_FILE_OFFSET + 4) -#define CBFS_STAGE_COMPRESSION 0 -#define CBFS_STAGE_ENTRY (CBFS_STAGE_COMPRESSION + 4) -#define CBFS_STAGE_LOAD (CBFS_STAGE_ENTRY + 8) -#define CBFS_STAGE_LEN (CBFS_STAGE_LOAD + 8) -#define CBFS_STAGE_MEMLEN (CBFS_STAGE_LEN + 4) - /* input %esi: filename input %esp: return address (not pointer to return address!) output %eax: entry point clobbers %ebx, %ecx, %edi */ -walkcbfs: +walkcbfs_asm: cld mov CBFS_HEADER_PTR, %eax @@ -67,8 +61,6 @@ walker: mov CBFS_FILE_OFFSET(%ebx), %eax bswap %eax add %ebx, %eax - add $CBFS_STAGE_ENTRY, %eax /* eax = ((cbfs_stage* (cbfs_file* ebx)->offset)->entry) */ - mov 0(%eax), %eax jmp *%esp tryharder: |