| /* |
| * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program 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 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program 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 this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307USA |
| */ |
| |
| #include <config.h> |
| #include <command.h> |
| #include <74xx_7xx.h> |
| #include <version.h> |
| |
| #include <ppc_asm.tmpl> |
| #include <ppc_defs.h> |
| |
| #include <asm/cache.h> |
| #include <asm/mmu.h> |
| |
| #if defined(CONFIG_CMD_KGDB) |
| |
| /* |
| * cache flushing routines for kgdb |
| */ |
| |
| .globl kgdb_flush_cache_all |
| kgdb_flush_cache_all: |
| lis r3,0 |
| addis r4,r0,0x0040 |
| kgdb_flush_loop: |
| lwz r5,0(r3) |
| addi r3,r3,CONFIG_SYS_CACHELINE_SIZE |
| cmp 0,0,r3,r4 |
| bne kgdb_flush_loop |
| SYNC |
| mfspr r3,1008 |
| ori r3,r3,0x8800 |
| mtspr 1008,r3 |
| sync |
| blr |
| |
| .globl kgdb_flush_cache_range |
| kgdb_flush_cache_range: |
| li r5,CONFIG_SYS_CACHELINE_SIZE-1 |
| andc r3,r3,r5 |
| subf r4,r3,r4 |
| add r4,r4,r5 |
| srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT |
| beqlr |
| mtctr r4 |
| mr r6,r3 |
| 1: dcbst 0,r3 |
| addi r3,r3,CONFIG_SYS_CACHELINE_SIZE |
| bdnz 1b |
| sync /* wait for dcbst's to get to ram */ |
| mtctr r4 |
| 2: icbi 0,r6 |
| addi r6,r6,CONFIG_SYS_CACHELINE_SIZE |
| bdnz 2b |
| SYNC |
| blr |
| |
| #endif |
