1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
| /*
| * (C) Copyright 2002
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
| *
| * SPDX-License-Identifier: GPL-2.0+
| */
|
| #include <common.h>
|
| /*
| * CPU test
| * Load/store string instructions: lswi, stswi, lswx, stswx
| *
| * Several consecutive bytes from a source memory buffer are loaded
| * left to right into GPRs. After that, the bytes are stored
| * from the GPRs into a target memory buffer. The contents
| * of the source and target buffers are then compared.
| */
|
| #include <post.h>
| #include "cpu_asm.h"
|
| #if CONFIG_POST & CONFIG_SYS_POST_CPU
|
| extern void cpu_post_exec_02 (ulong *code, ulong op1, ulong op2);
| extern void cpu_post_exec_04 (ulong *code, ulong op1, ulong op2, ulong op3,
| ulong op4);
|
| #include <bedbug/regs.h>
| int cpu_post_test_string (void)
| {
| int ret = 0;
| unsigned int i;
| int flag = disable_interrupts();
|
| if (ret == 0)
| {
| char src [31], dst [31];
|
| ulong code[] =
| {
| ASM_LSWI(5, 3, 31),
| ASM_STSWI(5, 4, 31),
| ASM_BLR,
| };
|
| for (i = 0; i < sizeof(src); i ++)
| {
| src[i] = (char) i;
| dst[i] = 0;
| }
|
| cpu_post_exec_02(code, (ulong)src, (ulong)dst);
|
| ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
| }
|
| if (ret == 0)
| {
| char src [95], dst [95];
|
| ulong code[] =
| {
| ASM_LSWX(8, 3, 5),
| ASM_STSWX(8, 4, 5),
| ASM_BLR,
| };
|
| for (i = 0; i < sizeof(src); i ++)
| {
| src[i] = (char) i;
| dst[i] = 0;
| }
|
| cpu_post_exec_04(code, (ulong)src, (ulong)dst, 0, sizeof(src));
|
| ret = memcmp(src, dst, sizeof(dst)) == 0 ? 0 : -1;
| }
|
| if (ret != 0)
| {
| post_log ("Error at string test !\n");
| }
|
| if (flag)
| enable_interrupts();
|
| return ret;
| }
|
| #endif
|
|
