diff options
Diffstat (limited to 'common/env_onenand.c')
| -rw-r--r-- | common/env_onenand.c | 65 |
1 files changed, 36 insertions, 29 deletions
diff --git a/common/env_onenand.c b/common/env_onenand.c index cf997bf..02cb535 100644 --- a/common/env_onenand.c +++ b/common/env_onenand.c @@ -1,4 +1,7 @@ /* + * (C) Copyright 2010 DENX Software Engineering + * Wolfgang Denk <wd@denx.de> + * * (C) Copyright 2005-2009 Samsung Electronics * Kyungmin Park <kyungmin.park@samsung.com> * @@ -26,6 +29,8 @@ #include <environment.h> #include <linux/stddef.h> #include <malloc.h> +#include <search.h> +#include <errno.h> #include <linux/mtd/compat.h> #include <linux/mtd/mtd.h> @@ -44,17 +49,13 @@ char *env_name_spec = "OneNAND"; #ifdef ENV_IS_EMBEDDED extern uchar environment[]; -env_t *env_ptr = (env_t *) (&environment[0]); -#else /* ! ENV_IS_EMBEDDED */ -static unsigned char onenand_env[ONENAND_MAX_ENV_SIZE]; -env_t *env_ptr = (env_t *) onenand_env; #endif /* ENV_IS_EMBEDDED */ DECLARE_GLOBAL_DATA_PTR; uchar env_get_char_spec(int index) { - return (*((uchar *) (gd->env_addr + index))); + return (*((uchar *)(gd->env_addr + index))); } void env_relocate_spec(void) @@ -63,48 +64,57 @@ void env_relocate_spec(void) #ifdef CONFIG_ENV_ADDR_FLEX struct onenand_chip *this = &onenand_chip; #endif - loff_t env_addr; - int use_default = 0; + int rc; size_t retlen; +#ifdef ENV_IS_EMBEDDED + char *buf = (char *)&environment[0]; +#else + loff_t env_addr = CONFIG_ENV_ADDR; + char onenand_env[ONENAND_MAX_ENV_SIZE]; + char *buf = (char *)&onenand_env[0]; +#endif /* ENV_IS_EMBEDDED */ - env_addr = CONFIG_ENV_ADDR; -#ifdef CONFIG_ENV_ADDR_FLEX +#ifndef ENV_IS_EMBEDDED +# ifdef CONFIG_ENV_ADDR_FLEX if (FLEXONENAND(this)) env_addr = CONFIG_ENV_ADDR_FLEX; -#endif +# endif /* Check OneNAND exist */ if (mtd->writesize) /* Ignore read fail */ mtd->read(mtd, env_addr, ONENAND_MAX_ENV_SIZE, - &retlen, (u_char *) env_ptr); + &retlen, (u_char *)buf); else mtd->writesize = MAX_ONENAND_PAGESIZE; +#endif /* !ENV_IS_EMBEDDED */ - if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)) != env_ptr->crc) - use_default = 1; - - if (use_default) { - memcpy(env_ptr->data, default_environment, - ONENAND_ENV_SIZE(mtd)); - env_ptr->crc = - crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)); - } - - gd->env_addr = (ulong) & env_ptr->data; - gd->env_valid = 1; + rc = env_import(buf, 1); + if (rc) + gd->env_valid = 1; } int saveenv(void) { + env_t env_new; + ssize_t len; + char *res; struct mtd_info *mtd = &onenand_mtd; #ifdef CONFIG_ENV_ADDR_FLEX struct onenand_chip *this = &onenand_chip; #endif - loff_t env_addr = CONFIG_ENV_ADDR; + loff_t env_addr = CONFIG_ENV_ADDR; + size_t retlen; struct erase_info instr = { .callback = NULL, }; - size_t retlen; + + res = (char *)&env_new.data; + len = hexport('\0', &res, ENV_SIZE); + if (len < 0) { + error("Cannot export environment: errno = %d\n", errno); + return 1; + } + env_new.crc = crc32(0, env_new.data, ENV_SIZE); instr.len = CONFIG_ENV_SIZE; #ifdef CONFIG_ENV_ADDR_FLEX @@ -122,11 +132,8 @@ int saveenv(void) return 1; } - /* update crc */ - env_ptr->crc = crc32(0, env_ptr->data, ONENAND_ENV_SIZE(mtd)); - if (mtd->write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen, - (u_char *) env_ptr)) { + (u_char *)&env_new)) { printf("OneNAND: write failed at 0x%llx\n", instr.addr); return 2; } |