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authorSimon Glass <sjg@chromium.org>2015-01-01 16:18:11 -0700
committerSimon Glass <sjg@chromium.org>2015-01-13 07:25:01 -0800
commitdb55bd7dad9a2c30c8da884bf20273945e240430 (patch)
treedac252456e42491d3ccd523f7d9dfbe78a898de0 /arch
parentaaafcd6c3f472f81d2c87b96571fba2e0f55b368 (diff)
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x86: Commit the current MTRRs before relocation
Once we stop running from ROM we should set up the MTTRs to speed up execution. This is only needed for platforms that don't have an FSP. Also in the Coreboot case, the MTRRs are set up for us. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/lib/init_helpers.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/lib/init_helpers.c b/arch/x86/lib/init_helpers.c
index be4eb12..fc211d9 100644
--- a/arch/x86/lib/init_helpers.c
+++ b/arch/x86/lib/init_helpers.c
@@ -7,6 +7,7 @@
#include <common.h>
#include <fdtdec.h>
#include <spi.h>
+#include <asm/mtrr.h>
#include <asm/sections.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -66,6 +67,13 @@ int calculate_relocation_address(void)
int init_cache_f_r(void)
{
+#if defined(CONFIG_X86_RESET_VECTOR) & !defined(CONFIG_HAVE_FSP)
+ int ret;
+
+ ret = mtrr_commit(false);
+ if (ret)
+ return ret;
+#endif
/* Initialise the CPU cache(s) */
return init_cache();
}