1*f6f7395eSMike Frysinger /*
2*f6f7395eSMike Frysinger * Parallel NOR Flash tests
3*f6f7395eSMike Frysinger *
4*f6f7395eSMike Frysinger * Copyright (c) 2005-2011 Analog Devices Inc.
5*f6f7395eSMike Frysinger *
6*f6f7395eSMike Frysinger * Licensed under the GPL-2 or later.
7*f6f7395eSMike Frysinger */
8*f6f7395eSMike Frysinger
9*f6f7395eSMike Frysinger #include <common.h>
10*f6f7395eSMike Frysinger #include <malloc.h>
11*f6f7395eSMike Frysinger #include <post.h>
12*f6f7395eSMike Frysinger #include <flash.h>
13*f6f7395eSMike Frysinger
14*f6f7395eSMike Frysinger #if CONFIG_POST & CONFIG_SYS_POST_FLASH
15*f6f7395eSMike Frysinger
16*f6f7395eSMike Frysinger /*
17*f6f7395eSMike Frysinger * This code will walk over the declared sectors erasing them,
18*f6f7395eSMike Frysinger * then programming them, then verifying the written contents.
19*f6f7395eSMike Frysinger * Possible future work:
20*f6f7395eSMike Frysinger * - verify sectors before/after are not erased/written
21*f6f7395eSMike Frysinger * - verify partial writes (e.g. programming only middle of sector)
22*f6f7395eSMike Frysinger * - verify the contents of the erased sector
23*f6f7395eSMike Frysinger * - better seed pattern than 0x00..0xff
24*f6f7395eSMike Frysinger */
25*f6f7395eSMike Frysinger
26*f6f7395eSMike Frysinger #ifndef CONFIG_SYS_POST_FLASH_NUM
27*f6f7395eSMike Frysinger # define CONFIG_SYS_POST_FLASH_NUM 0
28*f6f7395eSMike Frysinger #endif
29*f6f7395eSMike Frysinger #if CONFIG_SYS_POST_FLASH_START >= CONFIG_SYS_POST_FLASH_END
30*f6f7395eSMike Frysinger # error "invalid flash block start/end"
31*f6f7395eSMike Frysinger #endif
32*f6f7395eSMike Frysinger
33*f6f7395eSMike Frysinger extern flash_info_t flash_info[];
34*f6f7395eSMike Frysinger
seed_src_data(void * ptr,ulong * old_len,ulong new_len)35*f6f7395eSMike Frysinger static void *seed_src_data(void *ptr, ulong *old_len, ulong new_len)
36*f6f7395eSMike Frysinger {
37*f6f7395eSMike Frysinger unsigned char *p;
38*f6f7395eSMike Frysinger ulong i;
39*f6f7395eSMike Frysinger
40*f6f7395eSMike Frysinger p = ptr = realloc(ptr, new_len);
41*f6f7395eSMike Frysinger if (!ptr)
42*f6f7395eSMike Frysinger return ptr;
43*f6f7395eSMike Frysinger
44*f6f7395eSMike Frysinger for (i = *old_len; i < new_len; ++i)
45*f6f7395eSMike Frysinger p[i] = i;
46*f6f7395eSMike Frysinger
47*f6f7395eSMike Frysinger *old_len = new_len;
48*f6f7395eSMike Frysinger
49*f6f7395eSMike Frysinger return ptr;
50*f6f7395eSMike Frysinger }
51*f6f7395eSMike Frysinger
flash_post_test(int flags)52*f6f7395eSMike Frysinger int flash_post_test(int flags)
53*f6f7395eSMike Frysinger {
54*f6f7395eSMike Frysinger ulong len;
55*f6f7395eSMike Frysinger void *src;
56*f6f7395eSMike Frysinger int ret, n, n_start, n_end;
57*f6f7395eSMike Frysinger flash_info_t *info;
58*f6f7395eSMike Frysinger
59*f6f7395eSMike Frysinger /* the output from the common flash layers needs help */
60*f6f7395eSMike Frysinger puts("\n");
61*f6f7395eSMike Frysinger
62*f6f7395eSMike Frysinger len = 0;
63*f6f7395eSMike Frysinger src = NULL;
64*f6f7395eSMike Frysinger info = &flash_info[CONFIG_SYS_POST_FLASH_NUM];
65*f6f7395eSMike Frysinger n_start = CONFIG_SYS_POST_FLASH_START;
66*f6f7395eSMike Frysinger n_end = CONFIG_SYS_POST_FLASH_END;
67*f6f7395eSMike Frysinger
68*f6f7395eSMike Frysinger for (n = n_start; n < n_end; ++n) {
69*f6f7395eSMike Frysinger ulong s_start, s_len, s_off;
70*f6f7395eSMike Frysinger
71*f6f7395eSMike Frysinger s_start = info->start[n];
72*f6f7395eSMike Frysinger s_len = flash_sector_size(info, n);
73*f6f7395eSMike Frysinger s_off = s_start - info->start[0];
74*f6f7395eSMike Frysinger
75*f6f7395eSMike Frysinger src = seed_src_data(src, &len, s_len);
76*f6f7395eSMike Frysinger if (!src) {
77*f6f7395eSMike Frysinger printf("malloc(%#lx) failed\n", s_len);
78*f6f7395eSMike Frysinger return 1;
79*f6f7395eSMike Frysinger }
80*f6f7395eSMike Frysinger
81*f6f7395eSMike Frysinger printf("\tsector %i: %#lx +%#lx", n, s_start, s_len);
82*f6f7395eSMike Frysinger
83*f6f7395eSMike Frysinger ret = flash_erase(info, n, n + 1);
84*f6f7395eSMike Frysinger if (ret) {
85*f6f7395eSMike Frysinger flash_perror(ret);
86*f6f7395eSMike Frysinger break;
87*f6f7395eSMike Frysinger }
88*f6f7395eSMike Frysinger
89*f6f7395eSMike Frysinger ret = write_buff(info, src, s_start, s_len);
90*f6f7395eSMike Frysinger if (ret) {
91*f6f7395eSMike Frysinger flash_perror(ret);
92*f6f7395eSMike Frysinger break;
93*f6f7395eSMike Frysinger }
94*f6f7395eSMike Frysinger
95*f6f7395eSMike Frysinger ret = memcmp(src, (void *)s_start, s_len);
96*f6f7395eSMike Frysinger if (ret) {
97*f6f7395eSMike Frysinger printf(" verify failed with %i\n", ret);
98*f6f7395eSMike Frysinger break;
99*f6f7395eSMike Frysinger }
100*f6f7395eSMike Frysinger }
101*f6f7395eSMike Frysinger
102*f6f7395eSMike Frysinger free(src);
103*f6f7395eSMike Frysinger
104*f6f7395eSMike Frysinger return ret;
105*f6f7395eSMike Frysinger }
106*f6f7395eSMike Frysinger
107*f6f7395eSMike Frysinger #endif
108