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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
Jon Loeliger44312832007-07-09 19:06:00 -050037#if defined(CONFIG_CMD_KGDB)
wdenkefee1702002-07-20 20:14:13 +000038
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:
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020055 li r5,CONFIG_SYS_CACHELINE_SIZE-1
wdenkefee1702002-07-20 20:14:13 +000056 andc r3,r3,r5
57 subf r4,r3,r4
58 add r4,r4,r5
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020059 srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT
wdenkefee1702002-07-20 20:14:13 +000060 beqlr
61 mtctr r4
62 mr r6,r3
631: dcbst 0,r3
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020064 addi r3,r3,CONFIG_SYS_CACHELINE_SIZE
wdenkefee1702002-07-20 20:14:13 +000065 bdnz 1b
66 sync /* wait for dcbst's to get to ram */
67 mtctr r4
682: icbi 0,r6
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020069 addi r6,r6,CONFIG_SYS_CACHELINE_SIZE
wdenkefee1702002-07-20 20:14:13 +000070 bdnz 2b
71 SYNC
72 blr
73
Jon Loeliger068b60a2007-07-10 10:27:39 -050074#endif