intel car: Unify postcodes
Not all are matched, but this makes it easier to backport
MTRR changes from haswell.
Change-Id: Ida5943b1469fc0089a31ff3b18131fb82b0941c6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15760
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/cpu/intel/car/cache_as_ram_ht.inc b/src/cpu/intel/car/cache_as_ram_ht.inc
index 0abda49..f9a2b36 100644
--- a/src/cpu/intel/car/cache_as_ram_ht.inc
+++ b/src/cpu/intel/car/cache_as_ram_ht.inc
@@ -237,14 +237,14 @@
movl $(~(CACHE_AS_RAM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax
wrmsr
+ post_code(0x2b)
+
/* Enable MTRR. */
movl $MTRR_DEF_TYPE_MSR, %ecx
rdmsr
orl $MTRR_DEF_TYPE_EN, %eax
wrmsr
- post_code(0x2b)
-
/* Enable L2 cache Write-Back (WBINVD and FLUSH#).
*
* MSR is set when DisplayFamily_DisplayModel is one of:
@@ -295,13 +295,12 @@
movl $(CACHE_AS_RAM_SIZE >> 2), %ecx
rep stosl
+ post_code(0x2d)
/* Enable Cache-as-RAM mode by disabling cache. */
movl %cr0, %eax
orl $CR0_CacheDisable, %eax
movl %eax, %cr0
- post_code(0x2d)
-
/* Enable cache for our code in Flash because we do XIP here */
movl $MTRR_PHYS_BASE(1), %ecx
xorl %edx, %edx
@@ -319,13 +318,12 @@
movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax
wrmsr
+ post_code(0x2e)
/* Enable cache. */
movl %cr0, %eax
andl $(~(CR0_CacheDisable | CR0_NoWriteThrough)), %eax
movl %eax, %cr0
- post_code(0x2e)
-
/* Set up the stack pointer. */
movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4), %esp
@@ -334,8 +332,8 @@
movl %esp, %ebp
pushl %eax
+before_romstage:
post_code(0x2f)
-
/* Call romstage.c main function. */
call romstage_main
@@ -351,7 +349,7 @@
orl $CR0_CacheDisable, %eax
movl %eax, %cr0
- post_code(0x34)
+ post_code(0x31)
/* Disable MTRR. */
movl $MTRR_DEF_TYPE_MSR, %ecx
@@ -359,18 +357,18 @@
andl $(~MTRR_DEF_TYPE_EN), %eax
wrmsr
- post_code(0x35)
+ post_code(0x32)
invd
- post_code(0x36)
+ post_code(0x33)
/* Enable cache. */
movl %cr0, %eax
andl $~(CR0_CacheDisable | CR0_NoWriteThrough), %eax
movl %eax, %cr0
- post_code(0x37)
+ post_code(0x36)
/* Disable cache. */
movl %cr0, %eax