diff options
Diffstat (limited to 'common/env_nand.c')
| -rw-r--r-- | common/env_nand.c | 47 |
1 files changed, 26 insertions, 21 deletions
diff --git a/common/env_nand.c b/common/env_nand.c index 60aba1e..4896853 100644 --- a/common/env_nand.c +++ b/common/env_nand.c @@ -36,7 +36,7 @@ #include <command.h> #include <environment.h> #include <linux/stddef.h> -#include <linux/mtd/nand.h> +#include <nand.h> #if ((CONFIG_COMMANDS&(CFG_CMD_ENV|CFG_CMD_NAND)) == (CFG_CMD_ENV|CFG_CMD_NAND)) #define CMD_SAVEENV @@ -55,16 +55,12 @@ #error CONFIG_INFERNO not supported yet #endif -/* references to names in cmd_nand.c */ -#define NANDRW_READ 0x01 -#define NANDRW_WRITE 0x00 -#define NANDRW_JFFS2 0x02 -extern struct nand_chip nand_dev_desc[]; -int nand_rw (struct nand_chip* nand, int cmd, +int nand_legacy_rw (struct nand_chip* nand, int cmd, size_t start, size_t len, size_t * retlen, u_char * buf); -int nand_erase(struct nand_chip* nand, size_t ofs, - size_t len, int clean); + +/* info for NAND chips, defined in drivers/nand/nand.c */ +extern nand_info_t nand_info[]; /* references to names in env_common.c */ extern uchar default_environment[]; @@ -110,34 +106,43 @@ int env_init(void) } #ifdef CMD_SAVEENV +/* + * The legacy NAND code saved the environment in the first NAND device i.e., + * nand_dev_desc + 0. This is also the behaviour using the new NAND code. + */ int saveenv(void) { int total, ret = 0; - puts ("Erasing Nand..."); - if (nand_erase(nand_dev_desc + 0, CFG_ENV_OFFSET, CFG_ENV_SIZE, 0)) - return 1; + + puts ("Erasing Nand..."); + if (nand_erase(&nand_info[0], CFG_NEW_OFFSET, CFG_ENV_SIZE)) + return 1; puts ("Writing to Nand... "); - ret = nand_rw(nand_dev_desc + 0, - NANDRW_WRITE | NANDRW_JFFS2, CFG_ENV_OFFSET, CFG_ENV_SIZE, - &total, (u_char*)env_ptr); - if (ret || total != CFG_ENV_SIZE) + total = CFG_ENV_SIZE; + ret = nand_write(&nand_info[0], CFG_ENV_OFFSET, &total, + (u_char*) env_ptr); + if (ret || total != CFG_ENV_SIZE) return 1; - puts ("done\n"); - return ret; + puts ("done\n"); + return ret; } #endif /* CMD_SAVEENV */ +/* + * The legacy NAND code saved the environment in the first NAND device i.e., + * nand_dev_desc + 0. This is also the behaviour using the new NAND code. + */ void env_relocate_spec (void) { #if !defined(ENV_IS_EMBEDDED) int ret, total; - ret = nand_rw(nand_dev_desc + 0, - NANDRW_READ | NANDRW_JFFS2, CFG_ENV_OFFSET, CFG_ENV_SIZE, - &total, (u_char*)env_ptr); + total = CFG_ENV_SIZE; + ret = nand_read(&nand_info[0], CFG_ENV_OFFSET, &total, + (u_char*) env_ptr); if (ret || total != CFG_ENV_SIZE) return use_default(); |