diff options
| author | Patrick Georgi <patrick.georgi@coresystems.de> | 2009-11-03 15:02:15 +0000 |
|---|---|---|
| committer | Stefan Reinauer <stepan@openbios.org> | 2009-11-03 15:02:15 +0000 |
| commit | c6680487b950e79164db8ad340648e87adc27d91 (patch) | |
| tree | f861a380cb943e4435b2f194b6b477b4a6560df3 /src/cpu/intel | |
| parent | 7110d40fbf27b1fafe70e3cd560f53ca7be094a5 (diff) | |
Some fixes.
Atom does not like 36bit MTRRs in CAR setup.
Enable XIP setup again (works with 32bit MTRRs)
Keep code more similar to 6ex code..
Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4907 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/intel')
| -rw-r--r-- | src/cpu/intel/model_106cx/cache_as_ram.inc | 15 | ||||
| -rw-r--r-- | src/cpu/intel/model_106cx/cache_as_ram_post.c | 4 |
2 files changed, 11 insertions, 8 deletions
diff --git a/src/cpu/intel/model_106cx/cache_as_ram.inc b/src/cpu/intel/model_106cx/cache_as_ram.inc index 92cf92f0f0..a216aa3295 100644 --- a/src/cpu/intel/model_106cx/cache_as_ram.inc +++ b/src/cpu/intel/model_106cx/cache_as_ram.inc @@ -103,7 +103,6 @@ clear_mtrrs: //movl $0x23322332, %eax xorl %eax, %eax rep stosl -#endif post_code(0x29) /* Enable Cache As RAM mode by disabling cache */ @@ -111,29 +110,33 @@ clear_mtrrs: orl $(1 << 30), %eax movl %eax, %cr0 -#if 0 #if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) - /* Enable cache for our code in Flash because we do CONFIG_XIP here */ + /* Enable cache for our code in Flash because we do XIP here */ movl $MTRRphysBase_MSR(1), %ecx xorl %edx, %edx movl $(CONFIG_XIP_ROM_BASE | MTRR_TYPE_WRBACK), %eax wrmsr movl $MTRRphysMask_MSR(1), %ecx - movl $0x0000000f, %edx + movl $0x00000000, %edx movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax wrmsr #endif /* CONFIG_XIP_ROM_SIZE && CONFIG_XIP_ROM_BASE */ -#endif post_code(0x2a) /* enable cache */ movl %cr0, %eax andl $( ~( (1 << 30) | (1 << 29) ) ), %eax - movl %eax, %cr0 + movl %eax, %cr0 +#endif /* Set up stack pointer */ +#if defined(CONFIG_USBDEBUG_DIRECT) && (CONFIG_USBDEBUG_DIRECT == 1) + /* leave some space for the struct ehci_debug_info */ + movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4 - 128), %eax +#else movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4), %eax +#endif movl %eax, %esp /* Restore the BIST result */ diff --git a/src/cpu/intel/model_106cx/cache_as_ram_post.c b/src/cpu/intel/model_106cx/cache_as_ram_post.c index f5f4ff856e..09446fdea1 100644 --- a/src/cpu/intel/model_106cx/cache_as_ram_post.c +++ b/src/cpu/intel/model_106cx/cache_as_ram_post.c @@ -60,7 +60,7 @@ "wrmsr\n" "movl $MTRRphysMask_MSR(0), %ecx\n" "movl $(~(1024*1024 -1) | (1 << 11)), %eax\n" - "movl $0x0000000f, %edx\n" // 36bit address space + "movl $0x00000000, %edx\n" "wrmsr\n" "movb $0x35, %al\noutb %al, $0x80\n" #endif @@ -97,7 +97,7 @@ "wrmsr\n" "movl $MTRRphysMask_MSR(0), %ecx\n" "movl $(~(1024*1024 -1) | (1 << 11)), %eax\n" - "movl $0x0000000f, %edx\n" // 36bit address space + "movl $0x00000000, %edx\n" "wrmsr\n" "movb $0x39, %al\noutb %al, $0x80\n" |