blob: 11c3c69339ef0e0c8b954dea9226c27f2fcdd2e0 [file] [log] [blame]
wdenkefee1702002-07-20 20:14:13 +00001/*
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 (CONFIG_COMMANDS & CFG_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,CFG_CACHELINE_SIZE-1
56 andc r3,r3,r5
57 subf r4,r3,r4
58 add r4,r4,r5
59 srwi. r4,r4,CFG_CACHELINE_SHIFT
60 beqlr
61 mtctr r4
62 mr r6,r3
631: dcbst 0,r3
64 addi r3,r3,CFG_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,CFG_CACHELINE_SIZE
70 bdnz 2b
71 SYNC
72 blr
73
74#endif /* CFG_CMD_KGDB */