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| author | Marian Balakowicz <m8@semihalf.com> | 2006-04-08 19:08:06 +0200 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2006-04-08 19:08:06 +0200 |
| commit | 6db39708117d6391a72f3fc3ea7860231b630270 (patch) | |
| tree | 1c69fc84c3f615fe60217096c2947744c72e3528 /fs/jffs2/jffs2_1pass.c | |
| parent | 2fc000d756920b340945a74ec1214a34d9e84858 (diff) | |
| download | blackbird-obmc-uboot-6db39708117d6391a72f3fc3ea7860231b630270.tar.gz blackbird-obmc-uboot-6db39708117d6391a72f3fc3ea7860231b630270.zip | |
Fix JFFS2 support for legacy NAND driver.
Some more NAND cleanup and small fixes.
Diffstat (limited to 'fs/jffs2/jffs2_1pass.c')
| -rw-r--r-- | fs/jffs2/jffs2_1pass.c | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/fs/jffs2/jffs2_1pass.c b/fs/jffs2/jffs2_1pass.c index 49c86524c7..41ff4c1fbb 100644 --- a/fs/jffs2/jffs2_1pass.c +++ b/fs/jffs2/jffs2_1pass.c @@ -144,7 +144,11 @@ static struct part_info *current_part; #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) +#if defined(CFG_NAND_LEGACY) +#include <linux/mtd/nand_legacy.h> +#else #include <nand.h> +#endif /* * Support for jffs2 on top of NAND-flash * @@ -155,8 +159,14 @@ static struct part_info *current_part; * */ +#if defined(CFG_NAND_LEGACY) +/* this one defined in nand_legacy.c */ +int read_jffs2_nand(size_t start, size_t len, + size_t * retlen, u_char * buf, int nanddev); +#else /* info for NAND chips, defined in drivers/nand/nand.c */ extern nand_info_t nand_info[]; +#endif #define NAND_PAGE_SIZE 512 #define NAND_PAGE_SHIFT 9 @@ -167,7 +177,6 @@ extern nand_info_t nand_info[]; #endif #define NAND_CACHE_SIZE (NAND_CACHE_PAGES*NAND_PAGE_SIZE) -#ifdef CFG_NAND_LEGACY static u8* nand_cache = NULL; static u32 nand_cache_off = (u32)-1; @@ -175,7 +184,11 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf) { struct mtdids *id = current_part->dev->id; u32 bytes_read = 0; +#if defined(CFG_NAND_LEGACY) + size_t retlen; +#else ulong retlen; +#endif int cpy_bytes; while (bytes_read < size) { @@ -193,14 +206,24 @@ static int read_nand_cached(u32 off, u32 size, u_char *buf) } } +#if defined(CFG_NAND_LEGACY) + if (read_jffs2_nand(nand_cache_off, NAND_CACHE_SIZE, + &retlen, nand_cache, id->num) < 0 || + retlen != NAND_CACHE_SIZE) { + printf("read_nand_cached: error reading nand off %#x size %d bytes\n", + nand_cache_off, NAND_CACHE_SIZE); + return -1; + } +#else retlen = NAND_CACHE_SIZE; if (nand_read(&nand_info[id->num], nand_cache_off, - &retlen, nand_cache) != 0 || + &retlen, nand_cache) != 0 || retlen != NAND_CACHE_SIZE) { printf("read_nand_cached: error reading nand off %#x size %d bytes\n", nand_cache_off, NAND_CACHE_SIZE); return -1; } +#endif } cpy_bytes = nand_cache_off + NAND_CACHE_SIZE - (off + bytes_read); if (cpy_bytes > size - bytes_read) @@ -251,7 +274,6 @@ static void put_fl_mem_nand(void *buf) { free(buf); } -#endif /* CFG_NAND_LEGACY */ #endif /* #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) */ @@ -294,7 +316,7 @@ static inline void *get_fl_mem(u32 off, u32 size, void *ext_buf) return get_fl_mem_nor(off); #endif -#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) && defined(CFG_NAND_LEGACY) +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) if (id->type == MTD_DEV_TYPE_NAND) return get_fl_mem_nand(off, size, ext_buf); #endif @@ -312,7 +334,7 @@ static inline void *get_node_mem(u32 off) return get_node_mem_nor(off); #endif -#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) && defined(CFG_NAND_LEGACY) +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) if (id->type == MTD_DEV_TYPE_NAND) return get_node_mem_nand(off); #endif @@ -323,7 +345,7 @@ static inline void *get_node_mem(u32 off) static inline void put_fl_mem(void *buf) { -#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) && defined(CFG_NAND_LEGACY) +#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND) struct mtdids *id = current_part->dev->id; if (id->type == MTD_DEV_TYPE_NAND) |
