diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/intel/car/cache_as_ram_ht.inc | 39 |
1 files changed, 15 insertions, 24 deletions
diff --git a/src/cpu/intel/car/cache_as_ram_ht.inc b/src/cpu/intel/car/cache_as_ram_ht.inc index ed207db7b1..a6cbd6bac5 100644 --- a/src/cpu/intel/car/cache_as_ram_ht.inc +++ b/src/cpu/intel/car/cache_as_ram_ht.inc @@ -21,6 +21,10 @@ #include <cpu/x86/stack.h> #include <cpu/x86/mtrr.h> #include <cpu/x86/post_code.h> +#include <cpu/x86/lapic_def.h> + +/* Macro to access Local APIC registers at default base. */ +#define LAPIC(x) $(LAPIC_DEFAULT_BASE | LAPIC_ ## x) #define CPU_MAXPHYADDR 36 #define CPU_PHYSMASK_HI (1 << (CPU_MAXPHYADDR - 32) - 1) @@ -38,9 +42,9 @@ cache_as_ram: post_code(0x20) /* Send INIT IPI to all excluding ourself. */ - movl $0x000C4500, %eax - movl $0xFEE00300, %esi - movl %eax, (%esi) + movl LAPIC(ICR), %edi + movl $(LAPIC_DEST_ALLBUT | LAPIC_INT_ASSERT | LAPIC_DM_INIT), %eax + movl %eax, (%edi) /* Zero out all fixed range and variable range MTRRs. */ movl $mtrr_table, %esi @@ -86,17 +90,16 @@ clear_mtrrs: wrmsr /* Enable cache (CR0.CD = 0, CR0.NW = 0). */ - movl %cr0, %eax + movl %cr0, %eax andl $(~((1 << 30) | (1 << 29))), %eax invd movl %eax, %cr0 /* Clear the cache memory reagion. */ - movl $CACHE_AS_RAM_BASE, %esi - movl %esi, %edi - movl $(CACHE_AS_RAM_SIZE / 4), %ecx - // movl $0x23322332, %eax + cld xorl %eax, %eax + movl $CACHE_AS_RAM_BASE, %edi + movl $(CACHE_AS_RAM_SIZE / 4), %ecx rep stosl /* Enable Cache-as-RAM mode by disabling cache. */ @@ -131,11 +134,10 @@ clear_mtrrs: /* Set up the stack pointer. */ #if CONFIG_USBDEBUG /* Leave some space for the struct ehci_debug_info. */ - movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4 - 128), %eax + movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4 - 128), %esp #else - movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4), %eax + movl $(CACHE_AS_RAM_BASE + CACHE_AS_RAM_SIZE - 4), %esp #endif - movl %eax, %esp /* Restore the BIST result. */ movl %ebp, %eax @@ -146,6 +148,7 @@ clear_mtrrs: /* Call romstage.c main function. */ call main + addl $4, %esp post_code(0x2f) @@ -167,18 +170,6 @@ clear_mtrrs: post_code(0x31) invd -#if 0 - xorl %eax, %eax - xorl %edx, %edx - movl $MTRRphysBase_MSR(0), %ecx - wrmsr - movl $MTRRphysMask_MSR(0), %ecx - wrmsr - movl $MTRRphysBase_MSR(1), %ecx - wrmsr - movl $MTRRphysMask_MSR(1), %ecx - wrmsr -#endif post_code(0x33) @@ -196,7 +187,7 @@ clear_mtrrs: post_code(0x38) - /* Enable Write Back and Speculative Reads for the first 1MB. */ + /* Enable Write Back and Speculative Reads for low RAM. */ movl $MTRRphysBase_MSR(0), %ecx movl $(0x00000000 | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx |