diff options
Diffstat (limited to 'post/drivers')
| -rw-r--r-- | post/drivers/Makefile | 2 | ||||
| -rw-r--r-- | post/drivers/flash.c | 107 | ||||
| -rw-r--r-- | post/drivers/memory.c | 15 |
3 files changed, 118 insertions, 6 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/drivers/memory.c b/post/drivers/memory.c index 3f47449..c2b711e 100644 --- a/post/drivers/memory.c +++ b/post/drivers/memory.c @@ -225,7 +225,7 @@ const unsigned long long otherpattern = 0x0123456789abcdefULL; static int memory_post_dataline(unsigned long long * pmem) { unsigned long long temp64 = 0; - int num_patterns = sizeof(pattern)/ sizeof(pattern[0]); + int num_patterns = ARRAY_SIZE(pattern); int i; unsigned int hi, lo, pathi, patlo; int ret = 0; @@ -452,13 +452,17 @@ static int memory_post_tests (unsigned long start, unsigned long size) return ret; } +/* + * !! this is only valid, if you have contiguous memory banks !! + */ __attribute__((weak)) int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset) { bd_t *bd = gd->bd; + *vstart = CONFIG_SYS_SDRAM_BASE; - *size = (bd->bi_memsize >= 256 << 20 ? - 256 << 20 : bd->bi_memsize) - (1 << 20); + *size = (gd->ram_size >= 256 << 20 ? + 256 << 20 : gd->ram_size) - (1 << 20); /* Limit area to be tested with the board info struct */ if ((*vstart) + (*size) > (ulong)bd) @@ -500,9 +504,10 @@ int memory_post_test(int flags) unsigned long i; for (i = 0; i < (memsize >> 20) && ret == 0; i++) { if (ret == 0) - ret = memory_post_tests(i << 20, 0x800); + ret = memory_post_tests(vstart + + (i << 20), 0x800); if (ret == 0) - ret = memory_post_tests( + ret = memory_post_tests(vstart + (i << 20) + 0xff800, 0x800); } } |