diff options
| -rw-r--r-- | src/drivers/amd/agesa/cache_as_ram.S | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/src/drivers/amd/agesa/cache_as_ram.S b/src/drivers/amd/agesa/cache_as_ram.S index e429bba966..4f1cbea574 100644 --- a/src/drivers/amd/agesa/cache_as_ram.S +++ b/src/drivers/amd/agesa/cache_as_ram.S @@ -39,51 +39,6 @@ _cache_as_ram_setup: /* Align the stack. */ and $0xFFFFFFF0, %esp -#ifdef __x86_64__ - /* switch to 64 bit long mode */ - mov %esi, %ecx - add $0, %ecx # core number - xor %eax, %eax - lea (0x1000+0x23)(%ecx), %edi - mov %edi, (%ecx) - mov %eax, 4(%ecx) - - lea 0x1000(%ecx), %edi - movl $0x000000e3, 0x00(%edi) - movl %eax, 0x04(%edi) - movl $0x400000e3, 0x08(%edi) - movl %eax, 0x0c(%edi) - movl $0x800000e3, 0x10(%edi) - movl %eax, 0x14(%edi) - movl $0xc00000e3, 0x18(%edi) - movl %eax, 0x1c(%edi) - - # load ROM based identity mapped page tables - mov %ecx, %eax - mov %eax, %cr3 - - # enable PAE - mov %cr4, %eax - bts $5, %eax - mov %eax, %cr4 - - # enable long mode - mov $0xC0000080, %ecx - rdmsr - bts $8, %eax - wrmsr - - # enable paging - mov %cr0, %eax - bts $31, %eax - mov %eax, %cr0 - - # use call far to switch to 64-bit code segment - ljmp $0x18, $1f -1: - -#endif - /* Must maintain 16-byte stack alignment here. */ pushl $0x0 pushl $0x0 |