1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Parallel NOR Flash tests
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (c) 2005-2011 Analog Devices Inc.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Licensed under the GPL-2 or later.
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <common.h>
10*4882a593Smuzhiyun #include <malloc.h>
11*4882a593Smuzhiyun #include <post.h>
12*4882a593Smuzhiyun #include <flash.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun #if CONFIG_POST & CONFIG_SYS_POST_FLASH
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun /*
17*4882a593Smuzhiyun * This code will walk over the declared sectors erasing them,
18*4882a593Smuzhiyun * then programming them, then verifying the written contents.
19*4882a593Smuzhiyun * Possible future work:
20*4882a593Smuzhiyun * - verify sectors before/after are not erased/written
21*4882a593Smuzhiyun * - verify partial writes (e.g. programming only middle of sector)
22*4882a593Smuzhiyun * - verify the contents of the erased sector
23*4882a593Smuzhiyun * - better seed pattern than 0x00..0xff
24*4882a593Smuzhiyun */
25*4882a593Smuzhiyun
26*4882a593Smuzhiyun #ifndef CONFIG_SYS_POST_FLASH_NUM
27*4882a593Smuzhiyun # define CONFIG_SYS_POST_FLASH_NUM 0
28*4882a593Smuzhiyun #endif
29*4882a593Smuzhiyun #if CONFIG_SYS_POST_FLASH_START >= CONFIG_SYS_POST_FLASH_END
30*4882a593Smuzhiyun # error "invalid flash block start/end"
31*4882a593Smuzhiyun #endif
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun extern flash_info_t flash_info[];
34*4882a593Smuzhiyun
seed_src_data(void * ptr,ulong * old_len,ulong new_len)35*4882a593Smuzhiyun static void *seed_src_data(void *ptr, ulong *old_len, ulong new_len)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun unsigned char *p;
38*4882a593Smuzhiyun ulong i;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun p = ptr = realloc(ptr, new_len);
41*4882a593Smuzhiyun if (!ptr)
42*4882a593Smuzhiyun return ptr;
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun for (i = *old_len; i < new_len; ++i)
45*4882a593Smuzhiyun p[i] = i;
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun *old_len = new_len;
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun return ptr;
50*4882a593Smuzhiyun }
51*4882a593Smuzhiyun
flash_post_test(int flags)52*4882a593Smuzhiyun int flash_post_test(int flags)
53*4882a593Smuzhiyun {
54*4882a593Smuzhiyun ulong len;
55*4882a593Smuzhiyun void *src;
56*4882a593Smuzhiyun int ret, n, n_start, n_end;
57*4882a593Smuzhiyun flash_info_t *info;
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun /* the output from the common flash layers needs help */
60*4882a593Smuzhiyun puts("\n");
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun len = 0;
63*4882a593Smuzhiyun src = NULL;
64*4882a593Smuzhiyun info = &flash_info[CONFIG_SYS_POST_FLASH_NUM];
65*4882a593Smuzhiyun n_start = CONFIG_SYS_POST_FLASH_START;
66*4882a593Smuzhiyun n_end = CONFIG_SYS_POST_FLASH_END;
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun for (n = n_start; n < n_end; ++n) {
69*4882a593Smuzhiyun ulong s_start, s_len, s_off;
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun s_start = info->start[n];
72*4882a593Smuzhiyun s_len = flash_sector_size(info, n);
73*4882a593Smuzhiyun s_off = s_start - info->start[0];
74*4882a593Smuzhiyun
75*4882a593Smuzhiyun src = seed_src_data(src, &len, s_len);
76*4882a593Smuzhiyun if (!src) {
77*4882a593Smuzhiyun printf("malloc(%#lx) failed\n", s_len);
78*4882a593Smuzhiyun return 1;
79*4882a593Smuzhiyun }
80*4882a593Smuzhiyun
81*4882a593Smuzhiyun printf("\tsector %i: %#lx +%#lx", n, s_start, s_len);
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun ret = flash_erase(info, n, n + 1);
84*4882a593Smuzhiyun if (ret) {
85*4882a593Smuzhiyun flash_perror(ret);
86*4882a593Smuzhiyun break;
87*4882a593Smuzhiyun }
88*4882a593Smuzhiyun
89*4882a593Smuzhiyun ret = write_buff(info, src, s_start, s_len);
90*4882a593Smuzhiyun if (ret) {
91*4882a593Smuzhiyun flash_perror(ret);
92*4882a593Smuzhiyun break;
93*4882a593Smuzhiyun }
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun ret = memcmp(src, (void *)s_start, s_len);
96*4882a593Smuzhiyun if (ret) {
97*4882a593Smuzhiyun printf(" verify failed with %i\n", ret);
98*4882a593Smuzhiyun break;
99*4882a593Smuzhiyun }
100*4882a593Smuzhiyun }
101*4882a593Smuzhiyun
102*4882a593Smuzhiyun free(src);
103*4882a593Smuzhiyun
104*4882a593Smuzhiyun return ret;
105*4882a593Smuzhiyun }
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun #endif
108