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authorStefan Reinauer <stepan@coresystems.de>2010-04-14 11:40:34 +0000
committerStefan Reinauer <stepan@openbios.org>2010-04-14 11:40:34 +0000
commit5d3dee8334c2303434d7b00bec3aad4911120ac1 (patch)
tree38fd30e2473dc76d9cd64092133127934f184e9e /src/cpu/amd/mtrr
parent4154c668f24da79672099dfac06f5263c415fee0 (diff)
downloadcoreboot-5d3dee8334c2303434d7b00bec3aad4911120ac1.tar.xz
drop quite a lot of dead code that did nothing but produce warnings and make
the rest of the code unreadable. Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5426 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/amd/mtrr')
-rw-r--r--src/cpu/amd/mtrr/amd_earlymtrr.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/src/cpu/amd/mtrr/amd_earlymtrr.c b/src/cpu/amd/mtrr/amd_earlymtrr.c
deleted file mode 100644
index 81b4a80a84..0000000000
--- a/src/cpu/amd/mtrr/amd_earlymtrr.c
+++ /dev/null
@@ -1,97 +0,0 @@
-#ifndef AMD_EARLYMTRR_C
-#define AMD_EARLYMTRR_C
-#include <cpu/x86/mtrr.h>
-#include <cpu/amd/mtrr.h>
-#include "cpu/x86/mtrr/earlymtrr.c"
-
-/* the fixed and variable MTTRs are power-up with random values,
- * clear them to MTRR_TYPE_UNCACHEABLE for safty.
- */
-static void do_amd_early_mtrr_init(const unsigned long *mtrr_msrs)
-{
- /* Precondition:
- * The cache is not enabled in cr0 nor in MTRRdefType_MSR
- * entry32.inc ensures the cache is not enabled in cr0
- */
- msr_t msr;
- const unsigned long *msr_addr;
-#if 0
- /* Enable the access to AMD RdDram and WrDram extension bits */
- msr = rdmsr(SYSCFG_MSR);
- msr.lo |= SYSCFG_MSR_MtrrFixDramModEn;
- wrmsr(SYSCFG_MSR, msr);
-#endif
-
- /* Inialize all of the relevant msrs to 0 */
- msr.lo = 0;
- msr.hi = 0;
- unsigned long msr_nr;
- for(msr_addr = mtrr_msrs; (msr_nr = *msr_addr); msr_addr++) {
- wrmsr(msr_nr, msr);
- }
-#if 0
- /* Disable the access to AMD RdDram and WrDram extension bits */
- msr = rdmsr(SYSCFG_MSR);
- msr.lo &= ~SYSCFG_MSR_MtrrFixDramModEn;
- wrmsr(SYSCFG_MSR, msr);
-#endif
-
- /* Enable memory access for 0 - 1MB using top_mem */
- msr.hi = 0;
- msr.lo = (((CONFIG_RAMTOP) + TOP_MEM_MASK) & ~TOP_MEM_MASK);
- wrmsr(TOP_MEM, msr);
-
-#if defined(CONFIG_XIP_ROM_SIZE)
- /* enable write through caching so we can do execute in place
- * on the flash rom.
- */
- set_var_mtrr(1, REAL_XIP_ROM_BASE, CONFIG_XIP_ROM_SIZE, MTRR_TYPE_WRBACK);
-#endif
-
- /* Set the default memory type and enable fixed and variable MTRRs
- */
- /* Enable Variable MTRRs */
- msr.hi = 0x00000000;
- msr.lo = 0x00000800;
- wrmsr(MTRRdefType_MSR, msr);
-
- /* Enable the MTRRs in SYSCFG */
- msr = rdmsr(SYSCFG_MSR);
- msr.lo |= SYSCFG_MSR_MtrrVarDramEn;
- wrmsr(SYSCFG_MSR, msr);
-
-}
-
-static void amd_early_mtrr_init(void)
-{
- static const unsigned long mtrr_msrs[] = {
- /* fixed mtrr */
- 0x250, 0x258, 0x259,
- 0x268, 0x269, 0x26A,
- 0x26B, 0x26C, 0x26D,
- 0x26E, 0x26F,
- /* var mtrr */
- 0x200, 0x201, 0x202, 0x203,
- 0x204, 0x205, 0x206, 0x207,
- 0x208, 0x209, 0x20A, 0x20B,
- 0x20C, 0x20D, 0x20E, 0x20F,
- /* var iorr */
- 0xC0010016, 0xC0010017, 0xC0010018, 0xC0010019,
- /* mem top */
- 0xC001001A, 0xC001001D,
- /* NULL end of table */
- 0
- };
-
- /* wbinvd which is called in disable_cache() causes hangs on Opterons
- * if there is no data in the cache.
- * At this point we should not have the cache enabled so don't bother
- * disabling it.
- */
- /* disable_cache(); */
- do_amd_early_mtrr_init(mtrr_msrs);
-
- enable_cache();
-}
-
-#endif /* AMD_EARLYMTRR_C */