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Wolfgang Denkad5bb452007-03-06 18:08:43 +01001/*
2 * (C) Copyright 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25
26/*
27 * CPU test
28 * Load/store multiple word instructions: lmw, stmw
29 *
30 * 26 consecutive words are loaded from a source memory buffer
31 * into GPRs r6 through r31. After that, 26 consecutive words are stored
32 * from the GPRs r6 through r31 into a target memory buffer. The contents
33 * of the source and target buffers are then compared.
34 */
35
36#ifdef CONFIG_POST
37
38#include <post.h>
39#include "cpu_asm.h"
40
41#if CONFIG_POST & CFG_POST_CPU
42
43extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2);
44
45int cpu_post_test_multi (void)
46{
47 int ret = 0;
48 unsigned int i;
49
50 if (ret == 0)
51 {
52 ulong src [26], dst [26];
53
54 ulong code[] =
55 {
56 ASM_LMW(5, 3, 0),
57 ASM_STMW(5, 4, 0),
58 ASM_BLR,
59 };
60
61 for (i = 0; i < sizeof(src) / sizeof(src[0]); i ++)
62 {
63 src[i] = i;
64 dst[i] = 0;
65 }
66
67 cpu_post_exec_02(code, (ulong)src, (ulong)dst);
68
69 ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
70 }
71
72 if (ret != 0)
73 {
74 post_log ("Error at multi test !\n");
75 }
76
77 return ret;
78}
79
80#endif
81#endif