CAR patch from YH LU

[coreboot.git] / src / cpu / amd / car / cache_as_ram_post.c

diff --git a/src/cpu/amd/car/cache_as_ram_post.c b/src/cpu/amd/car/cache_as_ram_post.c
index 6a129b258a60fa8b42699045b37b444013ba6676..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 100644 (file)
--- a/src/cpu/amd/car/cache_as_ram_post.c
+++ b/src/cpu/amd/car/cache_as_ram_post.c
@@ -1,95 +0,0 @@
-/* by yhlu 6.2005 */
-/* be warned, this file will be used other cores and core0/node0 */
-        __asm__ volatile (
-       /* 
-       FIXME : backup stack in CACHE_AS_RAM into mmx and sse and after we get STACK up, we restore that.
-               It is only needed if we want to go back
-       */
-       
-        /* We don't need cache as ram for now on */
-        /* disable cache */
-        "movl    %cr0, %eax\n\t"
-        "orl    $(0x1<<30),%eax\n\t"
-        "movl    %eax, %cr0\n\t"
-
-        /* clear sth */
-        "movl    $0x269, %ecx\n\t"  /* fix4k_c8000*/
-        "xorl    %edx, %edx\n\t"
-        "xorl    %eax, %eax\n\t"
-       "wrmsr\n\t"
-#if DCACHE_RAM_SIZE > 0x8000
-       "movl    $0x268, %ecx\n\t"  /* fix4k_c0000*/
-        "wrmsr\n\t"
-#endif
-
-        /* disable fixed mtrr from now on, it will be enabled by linuxbios_ram again*/
-        "movl    $0xC0010010, %ecx\n\t"
-//        "movl    $SYSCFG_MSR, %ecx\n\t"
-        "rdmsr\n\t"
-        "andl    $(~(3<<18)), %eax\n\t"
-//        "andl    $(~(SYSCFG_MSR_MtrrFixDramModEn | SYSCFG_MSR_MtrrFixDramEn)), %eax\n\t"
-        "wrmsr\n\t"
-
-        /* Set the default memory type and disable fixed and enable variable MTRRs */
-        "movl    $0x2ff, %ecx\n\t"
-//        "movl    $MTRRdefType_MSR, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        /* Enable Variable and Disable Fixed MTRRs */
-        "movl    $0x00000800, %eax\n\t"
-        "wrmsr\n\t"
-
-#if defined(CLEAR_FIRST_1M_RAM)
-        /* enable caching for first 1M using variable mtrr */
-        "movl    $0x200, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $(0 | 1), %eax\n\t"
-//     "movl     $(0 | MTRR_TYPE_WRCOMB), %eax\n\t"
-        "wrmsr\n\t"
-
-        "movl    $0x201, %ecx\n\t"
-        "movl    $0x0000000f, %edx\n\t" 
-        "movl    $((~(( 0 + 0x100000) - 1)) | 0x800), %eax\n\t"
-        "wrmsr\n\t"
-#endif
-
-        /* enable cache */
-        "movl    %cr0, %eax\n\t"
-        "andl    $0x9fffffff,%eax\n\t"
-        "movl    %eax, %cr0\n\t"
-#if defined(CLEAR_FIRST_1M_RAM)
-        /* clear the first 1M */
-        "movl    $0x0, %edi\n\t"
-        "cld\n\t"
-        "movl    $(0x100000>>2), %ecx\n\t"
-        "xorl    %eax, %eax\n\t"
-        "rep     stosl\n\t"
-
-        /* disable cache */
-        "movl    %cr0, %eax\n\t"
-        "orl    $(0x1<<30),%eax\n\t"
-        "movl    %eax, %cr0\n\t"
-
-        /* enable caching for first 1M using variable mtrr */
-        "movl    $0x200, %ecx\n\t"
-        "xorl    %edx, %edx\n\t"
-        "movl     $(0 | 6), %eax\n\t"
-//     "movl     $(0 | MTRR_TYPE_WRBACK), %eax\n\t"
-        "wrmsr\n\t"
-
-        "movl    $0x201, %ecx\n\t"
-        "movl    $0x0000000f, %edx\n\t" 
-        "movl    $((~(( 0 + 0x100000) - 1)) | 0x800), %eax\n\t"
-        "wrmsr\n\t"
-
-        /* enable cache */
-        "movl    %cr0, %eax\n\t"
-        "andl    $0x9fffffff,%eax\n\t"
-        "movl    %eax, %cr0\n\t"
-       "invd\n\t"
-
-       /* 
-       FIXME: I hope we don't need to change esp and ebp value here, so we can restore value from mmx sse back
-               But the problem is the range is some io related, So don't go back
-       */
-#endif
-        );