]>
Commit | Line | Data |
---|---|---|
f6f7395e MF |
1 | /* |
2 | * Parallel NOR Flash tests | |
3 | * | |
4 | * Copyright (c) 2005-2011 Analog Devices Inc. | |
5 | * | |
6 | * Licensed under the GPL-2 or later. | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <malloc.h> | |
11 | #include <post.h> | |
12 | #include <flash.h> | |
13 | ||
14 | #if CONFIG_POST & CONFIG_SYS_POST_FLASH | |
15 | ||
16 | /* | |
17 | * This code will walk over the declared sectors erasing them, | |
18 | * then programming them, then verifying the written contents. | |
19 | * Possible future work: | |
20 | * - verify sectors before/after are not erased/written | |
21 | * - verify partial writes (e.g. programming only middle of sector) | |
22 | * - verify the contents of the erased sector | |
23 | * - better seed pattern than 0x00..0xff | |
24 | */ | |
25 | ||
26 | #ifndef CONFIG_SYS_POST_FLASH_NUM | |
27 | # define CONFIG_SYS_POST_FLASH_NUM 0 | |
28 | #endif | |
29 | #if CONFIG_SYS_POST_FLASH_START >= CONFIG_SYS_POST_FLASH_END | |
30 | # error "invalid flash block start/end" | |
31 | #endif | |
32 | ||
33 | extern flash_info_t flash_info[]; | |
34 | ||
35 | static void *seed_src_data(void *ptr, ulong *old_len, ulong new_len) | |
36 | { | |
37 | unsigned char *p; | |
38 | ulong i; | |
39 | ||
40 | p = ptr = realloc(ptr, new_len); | |
41 | if (!ptr) | |
42 | return ptr; | |
43 | ||
44 | for (i = *old_len; i < new_len; ++i) | |
45 | p[i] = i; | |
46 | ||
47 | *old_len = new_len; | |
48 | ||
49 | return ptr; | |
50 | } | |
51 | ||
52 | int flash_post_test(int flags) | |
53 | { | |
54 | ulong len; | |
55 | void *src; | |
56 | int ret, n, n_start, n_end; | |
57 | flash_info_t *info; | |
58 | ||
59 | /* the output from the common flash layers needs help */ | |
60 | puts("\n"); | |
61 | ||
62 | len = 0; | |
63 | src = NULL; | |
64 | info = &flash_info[CONFIG_SYS_POST_FLASH_NUM]; | |
65 | n_start = CONFIG_SYS_POST_FLASH_START; | |
66 | n_end = CONFIG_SYS_POST_FLASH_END; | |
67 | ||
68 | for (n = n_start; n < n_end; ++n) { | |
69 | ulong s_start, s_len, s_off; | |
70 | ||
71 | s_start = info->start[n]; | |
72 | s_len = flash_sector_size(info, n); | |
73 | s_off = s_start - info->start[0]; | |
74 | ||
75 | src = seed_src_data(src, &len, s_len); | |
76 | if (!src) { | |
77 | printf("malloc(%#lx) failed\n", s_len); | |
78 | return 1; | |
79 | } | |
80 | ||
81 | printf("\tsector %i: %#lx +%#lx", n, s_start, s_len); | |
82 | ||
83 | ret = flash_erase(info, n, n + 1); | |
84 | if (ret) { | |
85 | flash_perror(ret); | |
86 | break; | |
87 | } | |
88 | ||
89 | ret = write_buff(info, src, s_start, s_len); | |
90 | if (ret) { | |
91 | flash_perror(ret); | |
92 | break; | |
93 | } | |
94 | ||
95 | ret = memcmp(src, (void *)s_start, s_len); | |
96 | if (ret) { | |
97 | printf(" verify failed with %i\n", ret); | |
98 | break; | |
99 | } | |
100 | } | |
101 | ||
102 | free(src); | |
103 | ||
104 | return ret; | |
105 | } | |
106 | ||
107 | #endif |