diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-06-17 17:22:00 +0300 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-06-21 00:39:47 +0200 |
| commit | 07921540dda79d810d8bfc6be211513c238a0d63 (patch) | |
| tree | 6395b9d31d8030480004a6af8f1afc12394f678f /src/cpu/intel/car | |
| parent | 633c57d1d1ab3b2241fd259e12423054527ee000 (diff) | |
intel/car/cache_as_ram.inc: Prepare for dynamic CONFIG_RAMTOP
Change-Id: I02881ce465cb3835a6fa7c06b718aa42d0d327ec
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15227
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/cpu/intel/car')
| -rw-r--r-- | src/cpu/intel/car/cache_as_ram.inc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/src/cpu/intel/car/cache_as_ram.inc b/src/cpu/intel/car/cache_as_ram.inc index e28d033837..349ec05f03 100644 --- a/src/cpu/intel/car/cache_as_ram.inc +++ b/src/cpu/intel/car/cache_as_ram.inc @@ -318,7 +318,12 @@ lout: /* We need to set EBP? No need. */ movl %esp, %ebp pushl %eax /* BIST */ - call main + call romstage_main + + /* Save return value from romstage_main. It contains the stack to use + * after cache-as-ram is torn down. It also contains the information + * for setting up MTRRs. */ + movl %eax, %ebx /* We don't need CAR from now on. */ @@ -356,7 +361,8 @@ __main: post_code(POST_PREPARE_RAMSTAGE) cld /* Clear direction flag. */ - movl $CONFIG_RAMTOP, %esp + /* Setup stack as indicated by return value from romstage_main(). */ + movl %ebx, %esp movl %esp, %ebp call copy_and_run |