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/*
* 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
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