1/* 2 * Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au> 3 * 4 * See file CREDITS for list of people who contributed to this 5 * project. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation; either version 2 of 10 * the License, or (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 20 * MA 02111-1307 USA 21 */ 22 23#include <config.h> 24#include <command.h> 25#include <mpc8xx.h> 26#include <version.h> 27 28#define CONFIG_8xx 1 /* needed for Linux kernel header files */ 29#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ 30 31#include <ppc_asm.tmpl> 32#include <ppc_defs.h> 33 34#include <asm/cache.h> 35#include <asm/mmu.h> 36 37#if defined(CONFIG_CMD_KGDB) 38 39 /* 40 * cache flushing routines for kgdb 41 */ 42 43 .globl kgdb_flush_cache_all 44kgdb_flush_cache_all: 45 lis r3, IDC_INVALL@h 46 mtspr DC_CST, r3 47 sync 48 lis r3, IDC_INVALL@h 49 mtspr IC_CST, r3 50 SYNC 51 blr 52 53 .globl kgdb_flush_cache_range 54kgdb_flush_cache_range: 55 li r5,CONFIG_SYS_CACHELINE_SIZE-1 56 andc r3,r3,r5 57 subf r4,r3,r4 58 add r4,r4,r5 59 srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT 60 beqlr 61 mtctr r4 62 mr r6,r3 631: dcbst 0,r3 64 addi r3,r3,CONFIG_SYS_CACHELINE_SIZE 65 bdnz 1b 66 sync /* wait for dcbst's to get to ram */ 67 mtctr r4 682: icbi 0,r6 69 addi r6,r6,CONFIG_SYS_CACHELINE_SIZE 70 bdnz 2b 71 SYNC 72 blr 73 74#endif 75