source: SVN/rincon/u-boot/cpu/microblaze/cache.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 1.5 KB
Line 
1/*
2 * (C) Copyright 2007 Michal Simek
3 *
4 * Michal SIMEK <monstr@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#include <asm/asm.h>
27
28#if defined(CONFIG_CMD_CACHE)
29
30int dcache_status (void)
31{
32        int i = 0;
33        int mask = 0x80;
34        __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
35        /* i&=0x80 */
36        __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
37        return i;
38}
39
40int icache_status (void)
41{
42        int i = 0;
43        int mask = 0x20;
44        __asm__ __volatile__ ("mfs %0,rmsr"::"r" (i):"memory");
45        /* i&=0x20 */
46        __asm__ __volatile__ ("and %0,%0,%1"::"r" (i), "r" (mask):"memory");
47        return i;
48}
49
50void    icache_enable (void) {
51        MSRSET(0x20);
52}
53
54void    icache_disable(void) {
55        MSRCLR(0x20);
56}
57
58void    dcache_enable (void) {
59        MSRSET(0x80);
60}
61
62void    dcache_disable(void) {
63        MSRCLR(0x80);
64}
65#endif
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