| /* |
| * 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 |