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authorKyösti Mälkki <kyosti.malkki@gmail.com>2014-01-06 11:08:01 +0200
committerKyösti Mälkki <kyosti.malkki@gmail.com>2014-01-15 15:27:33 +0100
commitbbf013c38fe76cf9cc107c41c17e4ac432847d28 (patch)
tree016951e204c1444e3958225c522393633c92f37b /src/cpu/intel
parent107f72e674a3fbe2cadb24d98bba53f432bc2e0c (diff)
downloadcoreboot-bbf013c38fe76cf9cc107c41c17e4ac432847d28.tar.xz
nehalem/sandy/ivy/haswell: Enable WRPROT cache for all of flash
CBFS could start from below 4MB, and should be cacheable for the purpose of early microcode update and CBFS search for romstage file. Change-Id: Ia2a1c6e5fdcc3201fafc8cf5c841cebbbf0b30c9 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/4626 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@google.com>
Diffstat (limited to 'src/cpu/intel')
-rw-r--r--src/cpu/intel/haswell/bootblock.c3
-rw-r--r--src/cpu/intel/model_2065x/bootblock.c2
-rw-r--r--src/cpu/intel/model_206ax/bootblock.c2
3 files changed, 3 insertions, 4 deletions
diff --git a/src/cpu/intel/haswell/bootblock.c b/src/cpu/intel/haswell/bootblock.c
index e502cfa392..4857f23e69 100644
--- a/src/cpu/intel/haswell/bootblock.c
+++ b/src/cpu/intel/haswell/bootblock.c
@@ -54,8 +54,7 @@ static void enable_rom_caching(void)
msr_t msr;
disable_cache();
- /* Why only top 4MiB ? */
- set_var_mtrr(1, 0xffc00000, 4*1024*1024, MTRR_TYPE_WRPROT);
+ set_var_mtrr(1, CACHE_ROM_BASE, CACHE_ROM_SIZE, MTRR_TYPE_WRPROT);
enable_cache();
/* Enable Variable MTRRs */
diff --git a/src/cpu/intel/model_2065x/bootblock.c b/src/cpu/intel/model_2065x/bootblock.c
index 3fd3d14cc4..fa8e137c00 100644
--- a/src/cpu/intel/model_2065x/bootblock.c
+++ b/src/cpu/intel/model_2065x/bootblock.c
@@ -53,7 +53,7 @@ static void enable_rom_caching(void)
msr_t msr;
disable_cache();
- set_var_mtrr(1, 0xffc00000, 4*1024*1024, MTRR_TYPE_WRPROT);
+ set_var_mtrr(1, CACHE_ROM_BASE, CACHE_ROM_SIZE, MTRR_TYPE_WRPROT);
enable_cache();
/* Enable Variable MTRRs */
diff --git a/src/cpu/intel/model_206ax/bootblock.c b/src/cpu/intel/model_206ax/bootblock.c
index d3579f7471..49c4012eee 100644
--- a/src/cpu/intel/model_206ax/bootblock.c
+++ b/src/cpu/intel/model_206ax/bootblock.c
@@ -54,7 +54,7 @@ static void enable_rom_caching(void)
msr_t msr;
disable_cache();
- set_var_mtrr(1, 0xffc00000, 4*1024*1024, MTRR_TYPE_WRPROT);
+ set_var_mtrr(1, CACHE_ROM_BASE, CACHE_ROM_SIZE, MTRR_TYPE_WRPROT);
enable_cache();
/* Enable Variable MTRRs */