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AGESA,binaryPI: Remove __x86_64__ long mode in CAR

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Change-Id: I83a8b2325b751feeb046ce74fabd37aeb27c28dc
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37350
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Michał Żygowski
2019-11-24 16:32:05 +01:00
committed by Kyösti Mälkki
parent c574947223
commit 2fa1cb15de
1 changed files with 0 additions and 45 deletions
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45
src/drivers/amd/agesa/cache_as_ram.S
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@@ -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