diff options
Diffstat (limited to 'src/cpu/amd/car')
| -rw-r--r-- | src/cpu/amd/car/cache_as_ram.inc | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/src/cpu/amd/car/cache_as_ram.inc b/src/cpu/amd/car/cache_as_ram.inc index 48992969f0..9d2b400f49 100644 --- a/src/cpu/amd/car/cache_as_ram.inc +++ b/src/cpu/amd/car/cache_as_ram.inc @@ -281,24 +281,18 @@ clear_fixed_var_mtrr_out: #if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) -#if CONFIG_TINY_BOOTBLOCK -#define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE -#else -#define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE -#endif - /* Enable write base caching so we can do execute in place (XIP) * on the flash ROM. */ movl $MTRRphysBase_MSR(1), %ecx xorl %edx, %edx /* - * IMPORTANT: The two lines below can _not_ be written like this: - * movl $(REAL_XIP_ROM_BASE | MTRR_TYPE_WRPROT), %eax + * IMPORTANT: The following calculation _must_ be done at runtime. See * http://www.coreboot.org/pipermail/coreboot/2010-October/060855.html */ - movl $REAL_XIP_ROM_BASE, %eax - orl $MTRR_TYPE_WRPROT, %eax + movl copy_and_run, %eax + andl $(~(CONFIG_XIP_ROM_SIZE - 1)), %eax + orl $MTRR_TYPE_WRBACK, %eax wrmsr movl $MTRRphysMask_MSR(1), %ecx |