diff options
| -rw-r--r-- | src/cpu/intel/model_106cx/cache_as_ram.inc | 134 | ||||
| -rw-r--r-- | src/cpu/intel/model_6ex/cache_as_ram.inc | 139 | ||||
| -rw-r--r-- | src/cpu/intel/model_6fx/cache_as_ram.inc | 138 |
3 files changed, 205 insertions, 206 deletions
diff --git a/src/cpu/intel/model_106cx/cache_as_ram.inc b/src/cpu/intel/model_106cx/cache_as_ram.inc index ab2469f11b..87b465e928 100644 --- a/src/cpu/intel/model_106cx/cache_as_ram.inc +++ b/src/cpu/intel/model_106cx/cache_as_ram.inc @@ -18,140 +18,140 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE -#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE - #include <cpu/x86/stack.h> #include <cpu/x86/mtrr.h> - /* Save the BIST result */ - movl %eax, %ebp +#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE +#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE + + /* Save the BIST result. */ + movl %eax, %ebp cache_as_ram: post_code(0x20) - /* Send INIT IPI to all excluding ourself */ - movl $0x000C4500, %eax - movl $0xFEE00300, %esi - movl %eax, (%esi) + /* Send INIT IPI to all excluding ourself. */ + movl $0x000C4500, %eax + movl $0xFEE00300, %esi + movl %eax, (%esi) - /* Zero out all Fixed Range and Variable Range MTRRs */ + /* Zero out all fixed range and variable range MTRRs. */ movl $mtrr_table, %esi - movl $( (mtrr_table_end - mtrr_table) / 2), %edi - xorl %eax, %eax - xorl %edx, %edx + movl $((mtrr_table_end - mtrr_table) / 2), %edi + xorl %eax, %eax + xorl %edx, %edx clear_mtrrs: - movw (%esi), %bx - movzx %bx, %ecx + movw (%esi), %bx + movzx %bx, %ecx wrmsr add $2, %esi dec %edi jnz clear_mtrrs - /* Configure the default memory type to uncacheable */ + /* Configure the default memory type to uncacheable. */ movl $MTRRdefType_MSR, %ecx rdmsr andl $(~0x00000cff), %eax wrmsr - /* Set cache as ram base address */ + /* Set Cache-as-RAM base address. */ movl $(MTRRphysBase_MSR(0)), %ecx movl $(CACHE_AS_RAM_BASE | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx wrmsr - /* Set cache as ram mask */ + /* Set Cache-as-RAM mask. */ movl $(MTRRphysMask_MSR(0)), %ecx - movl $(~((CACHE_AS_RAM_SIZE-1)) | (1 << 11)), %eax + movl $(~((CACHE_AS_RAM_SIZE - 1)) | (1 << 11)), %eax xorl %edx, %edx wrmsr - /* Enable MTRR */ + /* Enable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr orl $(1 << 11), %eax wrmsr - /* Enable L2 Cache */ + /* Enable L2 cache. */ movl $0x11e, %ecx rdmsr orl $(1 << 8), %eax wrmsr - /* CR0.CD = 0, CR0.NW = 0 */ + /* Enable cache (CR0.CD = 0, CR0.NW = 0). */ movl %cr0, %eax - andl $( ~( (1 << 30) | (1 << 29) ) ), %eax + andl $(~((1 << 30) | (1 << 29))), %eax invd movl %eax, %cr0 - /* Clear the cache memory reagion */ + /* Clear the cache memory reagion. */ movl $CACHE_AS_RAM_BASE, %esi movl %esi, %edi movl $(CACHE_AS_RAM_SIZE / 4), %ecx - //movl $0x23322332, %eax + // movl $0x23322332, %eax xorl %eax, %eax rep stosl - /* Enable Cache As RAM mode by disabling cache */ + /* Enable Cache-as-RAM mode by disabling cache. */ movl %cr0, %eax orl $(1 << 30), %eax movl %eax, %cr0 #if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) /* Enable cache for our code in Flash because we do XIP here */ - movl $MTRRphysBase_MSR(1), %ecx - xorl %edx, %edx + movl $MTRRphysBase_MSR(1), %ecx + xorl %edx, %edx #if defined(CONFIG_TINY_BOOTBLOCK) && CONFIG_TINY_BOOTBLOCK #define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE #else #define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE #endif - movl $REAL_XIP_ROM_BASE, %eax - orl $MTRR_TYPE_WRBACK, %eax - wrmsr + movl $REAL_XIP_ROM_BASE, %eax + orl $MTRR_TYPE_WRBACK, %eax + wrmsr - movl $MTRRphysMask_MSR(1), %ecx + movl $MTRRphysMask_MSR(1), %ecx xorl %edx, %edx - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax - wrmsr + movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax + wrmsr #endif /* CONFIG_XIP_ROM_SIZE && CONFIG_XIP_ROM_BASE */ - /* enable cache */ - movl %cr0, %eax - andl $( ~( (1 << 30) | (1 << 29) ) ), %eax + /* Enable cache. */ + movl %cr0, %eax + andl $(~((1 << 30) | (1 << 29))), %eax movl %eax, %cr0 - /* Set up stack pointer */ + /* Set up the stack pointer. */ #if defined(CONFIG_USBDEBUG) && (CONFIG_USBDEBUG == 1) - /* leave some space for the struct ehci_debug_info */ + /* 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 */ + /* Restore the BIST result. */ movl %ebp, %eax movl %esp, %ebp pushl %eax post_code(0x23) - /* Call romstage.c main function */ + /* Call romstage.c main function. */ call main post_code(0x2f) post_code(0x30) - /* Disable Cache */ + /* Disable cache. */ movl %cr0, %eax - orl $(1 << 30), %eax + orl $(1 << 30), %eax movl %eax, %cr0 post_code(0x31) - /* Disable MTRR */ + /* Disable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr andl $(~(1 << 11)), %eax @@ -175,40 +175,40 @@ clear_mtrrs: post_code(0x33) - /* Enable Cache */ + /* Enable cache. */ movl %cr0, %eax - andl $~( (1 << 30) | (1 << 29) ), %eax + andl $~((1 << 30) | (1 << 29)), %eax movl %eax, %cr0 post_code(0x36) - /* Disable Cache */ + /* Disable cache. */ movl %cr0, %eax - orl $(1 << 30), %eax + orl $(1 << 30), %eax movl %eax, %cr0 post_code(0x38) - /* Enable Write Back and Speculative Reads for the first 1MB */ + /* Enable Write Back and Speculative Reads for the first 1MB. */ movl $MTRRphysBase_MSR(0), %ecx movl $(0x00000000 | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx wrmsr movl $MTRRphysMask_MSR(0), %ecx - movl $(~(1024*1024 -1) | (1 << 11)), %eax + movl $(~(1024 * 1024 - 1) | (1 << 11)), %eax xorl %edx, %edx wrmsr post_code(0x39) - /* And Enable Cache again after setting MTRRs */ + /* And enable cache again after setting MTRRs. */ movl %cr0, %eax - andl $~( (1 << 30) | (1 << 29) ), %eax + andl $~((1 << 30) | (1 << 29)), %eax movl %eax, %cr0 post_code(0x3a) - /* Enable MTRR */ + /* Enable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr orl $(1 << 11), %eax @@ -216,23 +216,23 @@ clear_mtrrs: post_code(0x3b) - /* Invalidate the cache again */ + /* Invalidate the cache again. */ invd post_code(0x3c) - /* clear boot_complete flag */ + /* Clear boot_complete flag. */ xorl %ebp, %ebp __main: post_code(0x11) - cld /* clear direction flag */ + cld /* Clear direction flag. */ movl %ebp, %esi - movl $ROMSTAGE_STACK, %esp + movl $ROMSTAGE_STACK, %esp movl %esp, %ebp - pushl %esi - call copy_and_run + pushl %esi + call copy_and_run .Lhlt: post_code(0xee) @@ -241,14 +241,14 @@ __main: mtrr_table: /* Fixed MTRRs */ - .word 0x250, 0x258, 0x259 - .word 0x268, 0x269, 0x26A - .word 0x26B, 0x26C, 0x26D - .word 0x26E, 0x26F + .word 0x250, 0x258, 0x259 + .word 0x268, 0x269, 0x26A + .word 0x26B, 0x26C, 0x26D + .word 0x26E, 0x26F /* Variable MTRRs */ - .word 0x200, 0x201, 0x202, 0x203 - .word 0x204, 0x205, 0x206, 0x207 - .word 0x208, 0x209, 0x20A, 0x20B - .word 0x20C, 0x20D, 0x20E, 0x20F + .word 0x200, 0x201, 0x202, 0x203 + .word 0x204, 0x205, 0x206, 0x207 + .word 0x208, 0x209, 0x20A, 0x20B + .word 0x20C, 0x20D, 0x20E, 0x20F mtrr_table_end: diff --git a/src/cpu/intel/model_6ex/cache_as_ram.inc b/src/cpu/intel/model_6ex/cache_as_ram.inc index 1f22ad0f97..dbc7cdc583 100644 --- a/src/cpu/intel/model_6ex/cache_as_ram.inc +++ b/src/cpu/intel/model_6ex/cache_as_ram.inc @@ -18,140 +18,140 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE -#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE - #include <cpu/x86/stack.h> #include <cpu/x86/mtrr.h> - /* Save the BIST result */ - movl %eax, %ebp +#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE +#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE + + /* Save the BIST result. */ + movl %eax, %ebp cache_as_ram: post_code(0x20) - /* Send INIT IPI to all excluding ourself */ - movl $0x000C4500, %eax - movl $0xFEE00300, %esi - movl %eax, (%esi) + /* Send INIT IPI to all excluding ourself. */ + movl $0x000C4500, %eax + movl $0xFEE00300, %esi + movl %eax, (%esi) - /* Zero out all Fixed Range and Variable Range MTRRs */ + /* Zero out all fixed range and variable range MTRRs. */ movl $mtrr_table, %esi - movl $( (mtrr_table_end - mtrr_table) / 2), %edi - xorl %eax, %eax - xorl %edx, %edx + movl $((mtrr_table_end - mtrr_table) / 2), %edi + xorl %eax, %eax + xorl %edx, %edx clear_mtrrs: - movw (%esi), %bx - movzx %bx, %ecx + movw (%esi), %bx + movzx %bx, %ecx wrmsr add $2, %esi dec %edi jnz clear_mtrrs - /* Configure the default memory type to uncacheable */ + /* Configure the default memory type to uncacheable. */ movl $MTRRdefType_MSR, %ecx rdmsr andl $(~0x00000cff), %eax wrmsr - /* Set cache as ram base address */ + /* Set Cache-as-RAM base address. */ movl $(MTRRphysBase_MSR(0)), %ecx movl $(CACHE_AS_RAM_BASE | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx wrmsr - /* Set cache as ram mask */ + /* Set Cache-as-RAM mask. */ movl $(MTRRphysMask_MSR(0)), %ecx - movl $(~((CACHE_AS_RAM_SIZE-1)) | (1 << 11)), %eax + movl $(~((CACHE_AS_RAM_SIZE - 1)) | (1 << 11)), %eax movl $0x0000000f, %edx wrmsr - /* Enable MTRR */ + /* Enable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr orl $(1 << 11), %eax wrmsr - /* Enable L2 Cache */ + /* Enable L2 cache. */ movl $0x11e, %ecx rdmsr orl $(1 << 8), %eax wrmsr - /* CR0.CD = 0, CR0.NW = 0 */ + /* Enable cache (CR0.CD = 0, CR0.NW = 0). */ movl %cr0, %eax - andl $( ~( (1 << 30) | (1 << 29) ) ), %eax + andl $(~((1 << 30) | (1 << 29))), %eax invd movl %eax, %cr0 - /* Clear the cache memory reagion */ + /* Clear the cache memory reagion. */ movl $CACHE_AS_RAM_BASE, %esi movl %esi, %edi movl $(CACHE_AS_RAM_SIZE / 4), %ecx - //movl $0x23322332, %eax + // movl $0x23322332, %eax xorl %eax, %eax rep stosl - /* Enable Cache As RAM mode by disabling cache */ + /* Enable Cache-as-RAM mode by disabling cache. */ movl %cr0, %eax orl $(1 << 30), %eax movl %eax, %cr0 #if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) /* Enable cache for our code in Flash because we do XIP here */ - movl $MTRRphysBase_MSR(1), %ecx - xorl %edx, %edx + movl $MTRRphysBase_MSR(1), %ecx + xorl %edx, %edx #if defined(CONFIG_TINY_BOOTBLOCK) && CONFIG_TINY_BOOTBLOCK #define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE #else #define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE #endif - movl $REAL_XIP_ROM_BASE, %eax - orl $MTRR_TYPE_WRBACK, %eax - wrmsr - - movl $MTRRphysMask_MSR(1), %ecx - movl $0x0000000f, %edx - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax - wrmsr + movl $REAL_XIP_ROM_BASE, %eax + orl $MTRR_TYPE_WRBACK, %eax + wrmsr + + movl $MTRRphysMask_MSR(1), %ecx + movl $0x0000000f, %edx + movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax + wrmsr #endif /* CONFIG_XIP_ROM_SIZE && CONFIG_XIP_ROM_BASE */ - /* enable cache */ - movl %cr0, %eax - andl $( ~( (1 << 30) | (1 << 29) ) ), %eax + /* Enable cache. */ + movl %cr0, %eax + andl $(~((1 << 30) | (1 << 29))), %eax movl %eax, %cr0 - /* Set up stack pointer */ + /* Set up the stack pointer. */ #if defined(CONFIG_USBDEBUG) && (CONFIG_USBDEBUG == 1) - /* leave some space for the struct ehci_debug_info */ + /* 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 */ + /* Restore the BIST result. */ movl %ebp, %eax movl %esp, %ebp pushl %eax post_code(0x23) - /* Call romstage.c main function */ + /* Call romstage.c main function. */ call main post_code(0x2f) post_code(0x30) - /* Disable Cache */ + /* Disable cache. */ movl %cr0, %eax - orl $(1 << 30), %eax + orl $(1 << 30), %eax movl %eax, %cr0 post_code(0x31) - /* Disable MTRR */ + /* Disable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr andl $(~(1 << 11)), %eax @@ -175,41 +175,40 @@ clear_mtrrs: post_code(0x33) - /* Enable Cache */ + /* Enable cache. */ movl %cr0, %eax - andl $~( (1 << 30) | (1 << 29) ), %eax + andl $~((1 << 30) | (1 << 29)), %eax movl %eax, %cr0 - post_code(0x36) - /* Disable Cache */ + /* Disable cache. */ movl %cr0, %eax - orl $(1 << 30), %eax + orl $(1 << 30), %eax movl %eax, %cr0 post_code(0x38) - /* Enable Write Back and Speculative Reads for the first 1MB */ + /* Enable Write Back and Speculative Reads for the first 1MB. */ movl $MTRRphysBase_MSR(0), %ecx movl $(0x00000000 | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx wrmsr movl $MTRRphysMask_MSR(0), %ecx - movl $(~(1024*1024 -1) | (1 << 11)), %eax + movl $(~(1024 * 1024 - 1) | (1 << 11)), %eax movl $0x0000000f, %edx // 36bit address space wrmsr post_code(0x39) - /* And Enable Cache again after setting MTRRs */ + /* And enable cache again after setting MTRRs. */ movl %cr0, %eax - andl $~( (1 << 30) | (1 << 29) ), %eax + andl $~((1 << 30) | (1 << 29)), %eax movl %eax, %cr0 post_code(0x3a) - /* Enable MTRR */ + /* Enable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr orl $(1 << 11), %eax @@ -217,23 +216,23 @@ clear_mtrrs: post_code(0x3b) - /* Invalidate the cache again */ + /* Invalidate the cache again. */ invd post_code(0x3c) - /* clear boot_complete flag */ + /* Clear boot_complete flag. */ xorl %ebp, %ebp __main: post_code(0x11) - cld /* clear direction flag */ + cld /* Clear direction flag. */ movl %ebp, %esi - movl $ROMSTAGE_STACK, %esp + movl $ROMSTAGE_STACK, %esp movl %esp, %ebp - pushl %esi - call copy_and_run + pushl %esi + call copy_and_run .Lhlt: post_code(0xee) @@ -242,14 +241,14 @@ __main: mtrr_table: /* Fixed MTRRs */ - .word 0x250, 0x258, 0x259 - .word 0x268, 0x269, 0x26A - .word 0x26B, 0x26C, 0x26D - .word 0x26E, 0x26F + .word 0x250, 0x258, 0x259 + .word 0x268, 0x269, 0x26A + .word 0x26B, 0x26C, 0x26D + .word 0x26E, 0x26F /* Variable MTRRs */ - .word 0x200, 0x201, 0x202, 0x203 - .word 0x204, 0x205, 0x206, 0x207 - .word 0x208, 0x209, 0x20A, 0x20B - .word 0x20C, 0x20D, 0x20E, 0x20F + .word 0x200, 0x201, 0x202, 0x203 + .word 0x204, 0x205, 0x206, 0x207 + .word 0x208, 0x209, 0x20A, 0x20B + .word 0x20C, 0x20D, 0x20E, 0x20F mtrr_table_end: diff --git a/src/cpu/intel/model_6fx/cache_as_ram.inc b/src/cpu/intel/model_6fx/cache_as_ram.inc index 6fc8889908..74314c2571 100644 --- a/src/cpu/intel/model_6fx/cache_as_ram.inc +++ b/src/cpu/intel/model_6fx/cache_as_ram.inc @@ -18,22 +18,22 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE -#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE - #include <cpu/x86/stack.h> #include <cpu/x86/mtrr.h> - /* Save the BIST result */ - movl %eax, %ebp +#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE +#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE + + /* Save the BIST result. */ + movl %eax, %ebp cache_as_ram: post_code(0x20) - /* Send INIT IPI to all excluding ourself */ - movl $0x000C4500, %eax - movl $0xFEE00300, %esi - movl %eax, (%esi) + /* Send INIT IPI to all excluding ourself. */ + movl $0x000C4500, %eax + movl $0xFEE00300, %esi + movl %eax, (%esi) /* Disable prefetchers */ movl $0x01a0, %ecx @@ -42,123 +42,123 @@ cache_as_ram: orl $((1 << 5) | (1 << 7)), %edx wrmsr - /* Zero out all Fixed Range and Variable Range MTRRs */ + /* Zero out all fixed range and variable range MTRRs. */ movl $mtrr_table, %esi - movl $( (mtrr_table_end - mtrr_table) / 2), %edi - xorl %eax, %eax - xorl %edx, %edx + movl $((mtrr_table_end - mtrr_table) / 2), %edi + xorl %eax, %eax + xorl %edx, %edx clear_mtrrs: - movw (%esi), %bx - movzx %bx, %ecx + movw (%esi), %bx + movzx %bx, %ecx wrmsr add $2, %esi dec %edi jnz clear_mtrrs - /* Configure the default memory type to uncacheable */ + /* Configure the default memory type to uncacheable. */ movl $MTRRdefType_MSR, %ecx rdmsr andl $(~0x00000cff), %eax wrmsr - /* Set cache as ram base address */ + /* Set Cache-as-RAM base address. */ movl $(MTRRphysBase_MSR(0)), %ecx movl $(CACHE_AS_RAM_BASE | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx wrmsr - /* Set cache as ram mask */ + /* Set Cache-as-RAM mask. */ movl $(MTRRphysMask_MSR(0)), %ecx - movl $(~((CACHE_AS_RAM_SIZE-1)) | (1 << 11)), %eax + movl $(~((CACHE_AS_RAM_SIZE - 1)) | (1 << 11)), %eax movl $0x0000000f, %edx wrmsr - /* Enable MTRR */ + /* Enable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr orl $(1 << 11), %eax wrmsr - /* Enable L2 Cache */ + /* Enable L2 cache. */ movl $0x11e, %ecx rdmsr orl $(1 << 8), %eax wrmsr - /* CR0.CD = 0, CR0.NW = 0 */ + /* Enable cache (CR0.CD = 0, CR0.NW = 0). */ movl %cr0, %eax - andl $( ~( (1 << 30) | (1 << 29) ) ), %eax + andl $(~((1 << 30) | (1 << 29))), %eax invd movl %eax, %cr0 - /* Clear the cache memory reagion */ + /* Clear the cache memory reagion. */ movl $CACHE_AS_RAM_BASE, %esi movl %esi, %edi movl $(CACHE_AS_RAM_SIZE / 4), %ecx - //movl $0x23322332, %eax + // movl $0x23322332, %eax xorl %eax, %eax rep stosl - /* Enable Cache As RAM mode by disabling cache */ + /* Enable Cache-as-RAM mode by disabling cache. */ movl %cr0, %eax orl $(1 << 30), %eax movl %eax, %cr0 #if defined(CONFIG_XIP_ROM_SIZE) && defined(CONFIG_XIP_ROM_BASE) /* Enable cache for our code in Flash because we do XIP here */ - movl $MTRRphysBase_MSR(1), %ecx - xorl %edx, %edx + movl $MTRRphysBase_MSR(1), %ecx + xorl %edx, %edx #if defined(CONFIG_TINY_BOOTBLOCK) && CONFIG_TINY_BOOTBLOCK #define REAL_XIP_ROM_BASE AUTO_XIP_ROM_BASE #else #define REAL_XIP_ROM_BASE CONFIG_XIP_ROM_BASE #endif - movl $REAL_XIP_ROM_BASE, %eax - orl $MTRR_TYPE_WRBACK, %eax - wrmsr - - movl $MTRRphysMask_MSR(1), %ecx - movl $0x0000000f, %edx - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax - wrmsr + movl $REAL_XIP_ROM_BASE, %eax + orl $MTRR_TYPE_WRBACK, %eax + wrmsr + + movl $MTRRphysMask_MSR(1), %ecx + movl $0x0000000f, %edx + movl $(~(CONFIG_XIP_ROM_SIZE - 1) | 0x800), %eax + wrmsr #endif /* CONFIG_XIP_ROM_SIZE && CONFIG_XIP_ROM_BASE */ - /* enable cache */ - movl %cr0, %eax - andl $( ~( (1 << 30) | (1 << 29) ) ), %eax + /* Enable cache. */ + movl %cr0, %eax + andl $(~((1 << 30) | (1 << 29))), %eax movl %eax, %cr0 - /* Set up stack pointer */ + /* Set up the stack pointer. */ #if defined(CONFIG_USBDEBUG) && (CONFIG_USBDEBUG == 1) - /* leave some space for the struct ehci_debug_info */ + /* 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 */ + /* Restore the BIST result. */ movl %ebp, %eax movl %esp, %ebp pushl %eax post_code(0x23) - /* Call romstage.c main function */ + /* Call romstage.c main function. */ call main post_code(0x2f) post_code(0x30) - /* Disable Cache */ + /* Disable cache. */ movl %cr0, %eax - orl $(1 << 30), %eax + orl $(1 << 30), %eax movl %eax, %cr0 post_code(0x31) - /* Disable MTRR */ + /* Disable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr andl $(~(1 << 11)), %eax @@ -182,40 +182,40 @@ clear_mtrrs: post_code(0x33) - /* Enable Cache */ + /* Enable cache. */ movl %cr0, %eax - andl $~( (1 << 30) | (1 << 29) ), %eax + andl $~((1 << 30) | (1 << 29)), %eax movl %eax, %cr0 post_code(0x36) - /* Disable Cache */ + /* Disable cache. */ movl %cr0, %eax - orl $(1 << 30), %eax + orl $(1 << 30), %eax movl %eax, %cr0 post_code(0x38) - /* Enable Write Back and Speculative Reads for the first 1MB */ + /* Enable Write Back and Speculative Reads for the first 1MB. */ movl $MTRRphysBase_MSR(0), %ecx movl $(0x00000000 | MTRR_TYPE_WRBACK), %eax xorl %edx, %edx wrmsr movl $MTRRphysMask_MSR(0), %ecx - movl $(~(1024*1024 -1) | (1 << 11)), %eax + movl $(~(1024 * 1024 - 1) | (1 << 11)), %eax movl $0x0000000f, %edx // 36bit address space wrmsr post_code(0x39) - /* And Enable Cache again after setting MTRRs */ + /* And enable cache again after setting MTRRs. */ movl %cr0, %eax - andl $~( (1 << 30) | (1 << 29) ), %eax + andl $~((1 << 30) | (1 << 29)), %eax movl %eax, %cr0 post_code(0x3a) - /* Enable MTRR */ + /* Enable MTRR. */ movl $MTRRdefType_MSR, %ecx rdmsr orl $(1 << 11), %eax @@ -230,23 +230,23 @@ clear_mtrrs: andl $~((1 << 5) | (1 << 7)), %edx wrmsr - /* Invalidate the cache again */ + /* Invalidate the cache again. */ invd post_code(0x3c) - /* clear boot_complete flag */ + /* Clear boot_complete flag. */ xorl %ebp, %ebp __main: post_code(0x11) - cld /* clear direction flag */ + cld /* Clear direction flag. */ movl %ebp, %esi - movl $ROMSTAGE_STACK, %esp + movl $ROMSTAGE_STACK, %esp movl %esp, %ebp - pushl %esi - call copy_and_run + pushl %esi + call copy_and_run .Lhlt: post_code(0xee) @@ -255,14 +255,14 @@ __main: mtrr_table: /* Fixed MTRRs */ - .word 0x250, 0x258, 0x259 - .word 0x268, 0x269, 0x26A - .word 0x26B, 0x26C, 0x26D - .word 0x26E, 0x26F + .word 0x250, 0x258, 0x259 + .word 0x268, 0x269, 0x26A + .word 0x26B, 0x26C, 0x26D + .word 0x26E, 0x26F /* Variable MTRRs */ - .word 0x200, 0x201, 0x202, 0x203 - .word 0x204, 0x205, 0x206, 0x207 - .word 0x208, 0x209, 0x20A, 0x20B - .word 0x20C, 0x20D, 0x20E, 0x20F + .word 0x200, 0x201, 0x202, 0x203 + .word 0x204, 0x205, 0x206, 0x207 + .word 0x208, 0x209, 0x20A, 0x20B + .word 0x20C, 0x20D, 0x20E, 0x20F mtrr_table_end: |