mirror of
https://git.proxmox.com/git/grub2
synced 2025-10-31 17:13:33 +00:00
5bda44d7f9
As these functions are used on pre-ARMv6 CPUs as well we don't want to make assembler assume that architecture is higher than default one.
73 lines
1.6 KiB
ArmAsm
73 lines
1.6 KiB
ArmAsm
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 2013 Free Software Foundation, Inc.
|
|
*
|
|
* GRUB is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* GRUB is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <grub/symbol.h>
|
|
|
|
.file "cache_armv6.S"
|
|
.text
|
|
.syntax unified
|
|
.arm
|
|
|
|
# define DMB mcr p15, 0, r0, c7, c10, 5
|
|
# define DSB mcr p15, 0, r0, c7, c10, 4
|
|
# define ISB mcr p15, 0, r0, c7, c5, 4
|
|
#define ARMV6 1
|
|
|
|
clean_invalidate_dcache:
|
|
mcr p15, 0, r0, c7, c14, 0 @ Clean/Invalidate D-cache
|
|
bx lr
|
|
|
|
#include "cache.S"
|
|
|
|
FUNCTION(grub_arm_main_id)
|
|
mrc p15, 0, r0, c0, c0, 0
|
|
bx lr
|
|
|
|
FUNCTION(grub_arm_cache_type)
|
|
mrc p15, 0, r0, c0, c0, 1
|
|
bx lr
|
|
|
|
FUNCTION(grub_arm_clear_mmu_v6)
|
|
mov r0, #0
|
|
mcr p15, 0, r0, c2, c0, 2
|
|
bx lr
|
|
|
|
FUNCTION(grub_arm_enable_mmu)
|
|
mcr p15, 0, r0, c2, c0, 0
|
|
|
|
mvn r0, #0
|
|
mcr p15, 0, r0, c3, c0, 0
|
|
|
|
mrc p15, 0, r0, c1, c0, 0
|
|
bic r0, r0, #(1 << 23)
|
|
mcr p15, 0, r0, c1, c0, 0
|
|
|
|
mrc p15, 0, r0, c1, c0, 0
|
|
orr r0, r0, #(1 << 0)
|
|
mcr p15, 0, r0, c1, c0, 0
|
|
|
|
mrc p15, 0, r0, c1, c0, 0
|
|
orr r0, r0, #(1 << 2)
|
|
mcr p15, 0, r0, c1, c0, 0
|
|
|
|
mrc p15, 0, r0, c1, c0, 0
|
|
orr r0, r0, #(1 << 12)
|
|
mcr p15, 0, r0, c1, c0, 0
|
|
|
|
bx lr
|