f6f7395eb3
This adds a simple flash test to automatically verify erasing, writing, and reading of sectors. The code is based on existing Blackfin tests but generalized for everyone to use. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
/*
|
|
* Parallel NOR Flash tests
|
|
*
|
|
* Copyright (c) 2005-2011 Analog Devices Inc.
|
|
*
|
|
* Licensed under the GPL-2 or later.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <malloc.h>
|
|
#include <post.h>
|
|
#include <flash.h>
|
|
|
|
#if CONFIG_POST & CONFIG_SYS_POST_FLASH
|
|
|
|
/*
|
|
* This code will walk over the declared sectors erasing them,
|
|
* then programming them, then verifying the written contents.
|
|
* Possible future work:
|
|
* - verify sectors before/after are not erased/written
|
|
* - verify partial writes (e.g. programming only middle of sector)
|
|
* - verify the contents of the erased sector
|
|
* - better seed pattern than 0x00..0xff
|
|
*/
|
|
|
|
#ifndef CONFIG_SYS_POST_FLASH_NUM
|
|
# define CONFIG_SYS_POST_FLASH_NUM 0
|
|
#endif
|
|
#if CONFIG_SYS_POST_FLASH_START >= CONFIG_SYS_POST_FLASH_END
|
|
# error "invalid flash block start/end"
|
|
#endif
|
|
|
|
extern flash_info_t flash_info[];
|
|
|
|
static void *seed_src_data(void *ptr, ulong *old_len, ulong new_len)
|
|
{
|
|
unsigned char *p;
|
|
ulong i;
|
|
|
|
p = ptr = realloc(ptr, new_len);
|
|
if (!ptr)
|
|
return ptr;
|
|
|
|
for (i = *old_len; i < new_len; ++i)
|
|
p[i] = i;
|
|
|
|
*old_len = new_len;
|
|
|
|
return ptr;
|
|
}
|
|
|
|
int flash_post_test(int flags)
|
|
{
|
|
ulong len;
|
|
void *src;
|
|
int ret, n, n_start, n_end;
|
|
flash_info_t *info;
|
|
|
|
/* the output from the common flash layers needs help */
|
|
puts("\n");
|
|
|
|
len = 0;
|
|
src = NULL;
|
|
info = &flash_info[CONFIG_SYS_POST_FLASH_NUM];
|
|
n_start = CONFIG_SYS_POST_FLASH_START;
|
|
n_end = CONFIG_SYS_POST_FLASH_END;
|
|
|
|
for (n = n_start; n < n_end; ++n) {
|
|
ulong s_start, s_len, s_off;
|
|
|
|
s_start = info->start[n];
|
|
s_len = flash_sector_size(info, n);
|
|
s_off = s_start - info->start[0];
|
|
|
|
src = seed_src_data(src, &len, s_len);
|
|
if (!src) {
|
|
printf("malloc(%#lx) failed\n", s_len);
|
|
return 1;
|
|
}
|
|
|
|
printf("\tsector %i: %#lx +%#lx", n, s_start, s_len);
|
|
|
|
ret = flash_erase(info, n, n + 1);
|
|
if (ret) {
|
|
flash_perror(ret);
|
|
break;
|
|
}
|
|
|
|
ret = write_buff(info, src, s_start, s_len);
|
|
if (ret) {
|
|
flash_perror(ret);
|
|
break;
|
|
}
|
|
|
|
ret = memcmp(src, (void *)s_start, s_len);
|
|
if (ret) {
|
|
printf(" verify failed with %i\n", ret);
|
|
break;
|
|
}
|
|
}
|
|
|
|
free(src);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif
|