diff options
Diffstat (limited to 'post')
| -rw-r--r-- | post/drivers/Makefile | 2 | ||||
| -rw-r--r-- | post/drivers/flash.c | 107 | ||||
| -rw-r--r-- | post/tests.c | 15 |
3 files changed, 122 insertions, 2 deletions
diff --git a/post/drivers/Makefile b/post/drivers/Makefile index 0d87ae0..85d6c03 100644 --- a/post/drivers/Makefile +++ b/post/drivers/Makefile @@ -24,6 +24,6 @@ include $(TOPDIR)/config.mk LIB = libpostdrivers.o -COBJS-$(CONFIG_HAS_POST) += i2c.o memory.o rtc.o +COBJS-$(CONFIG_HAS_POST) += flash.o i2c.o memory.o rtc.o include $(TOPDIR)/post/rules.mk diff --git a/post/drivers/flash.c b/post/drivers/flash.c new file mode 100644 index 0000000..07eab33 --- /dev/null +++ b/post/drivers/flash.c @@ -0,0 +1,107 @@ +/* + * 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 diff --git a/post/tests.c b/post/tests.c index 71437b6..bfb9cb5 100644 --- a/post/tests.c +++ b/post/tests.c @@ -46,6 +46,7 @@ extern int sysmon_post_test (int flags); extern int dsp_post_test (int flags); extern int codec_post_test (int flags); extern int ecc_post_test (int flags); +extern int flash_post_test(int flags); extern int dspic_init_post_test (int flags); extern int dspic_post_test (int flags); @@ -301,7 +302,19 @@ struct post_test post_list[] = NULL, NULL, CONFIG_SYS_POST_COPROC - } + }, +#endif +#if CONFIG_POST & CONFIG_SYS_POST_FLASH + { + "Parallel NOR flash test", + "flash", + "This test verifies parallel flash operations.", + POST_RAM | POST_SLOWTEST | POST_MANUAL, + &flash_post_test, + NULL, + NULL, + CONFIG_SYS_POST_FLASH + }, #endif }; |