blob: 683044caeaa193528f19b4ff08604f5e331eebf2 [file] [log] [blame]
Michal Simek76316a32007-03-11 13:42:58 +01001/*
2 * (C) Copyright 2007 Michal Simek
3 *
4 * Michal SIMEK <moonstr@monstr.eu>
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25#include <common.h>
26
27#if (CONFIG_COMMANDS & CFG_CMD_CACHE)
28
29int dcache_status (void)
30{
31 int i = 0;
32 int mask = 0x80;
33 __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
34 /* i&=0x80 */
35 __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
36 return i;
37}
38
39int icache_status (void)
40{
41 int i = 0;
42 int mask = 0x20;
43 __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
44 /* i&=0x20 */
45 __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
46 return i;
47}
Michal Simekf3f001a2007-05-07 19:25:08 +020048
49void icache_enable (void) {
50 __asm__ __volatile__ ("msrset r0, 0x80");
51}
52
53void icache_disable(void) {
54 __asm__ __volatile__ ("msrclr r0, 0x80");
55}
56
57void dcache_enable (void) {
58 __asm__ __volatile__ ("msrset r0, 0x20");
59}
60
61void dcache_disable(void) {
62 __asm__ __volatile__ ("msrclr r0, 0x20");
63}
Michal Simek76316a32007-03-11 13:42:58 +010064#endif