diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/jffs2/fs.c | 16 | ||||
| -rw-r--r-- | fs/jffs2/os-linux.h | 13 | ||||
| -rw-r--r-- | fs/jffs2/wbuf.c | 22 |
3 files changed, 46 insertions, 5 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index cc18b92234c..79b4bdc76f7 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -7,7 +7,7 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: fs.c,v 1.61 2005/07/24 15:29:56 dedekind Exp $ + * $Id: fs.c,v 1.62 2005/08/06 04:51:30 nico Exp $ * */ @@ -664,7 +664,14 @@ static int jffs2_flash_setup(struct jffs2_sb_info *c) { if (ret) return ret; } - + + /* and Intel "Sibley" flash */ + if (jffs2_nor_wbuf_flash(c)) { + ret = jffs2_nor_wbuf_flash_setup(c); + if (ret) + return ret; + } + return ret; } @@ -683,4 +690,9 @@ void jffs2_flash_cleanup(struct jffs2_sb_info *c) { if (jffs2_dataflash(c)) { jffs2_dataflash_cleanup(c); } + + /* and Intel "Sibley" flash */ + if (jffs2_nor_wbuf_flash(c)) { + jffs2_nor_wbuf_flash_cleanup(c); + } } diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index 0fc952eaf8c..c3c1619fb13 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -7,7 +7,7 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: os-linux.h,v 1.59 2005/07/17 11:13:46 dedekind Exp $ + * $Id: os-linux.h,v 1.60 2005/08/06 04:51:30 nico Exp $ * */ @@ -85,16 +85,21 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f) #define jffs2_wbuf_process NULL #define jffs2_nor_ecc(c) (0) #define jffs2_dataflash(c) (0) +#define jffs2_nor_wbuf_flash(c) (0) #define jffs2_nor_ecc_flash_setup(c) (0) #define jffs2_nor_ecc_flash_cleanup(c) do {} while (0) #define jffs2_dataflash_setup(c) (0) #define jffs2_dataflash_cleanup(c) do {} while (0) +#define jffs2_nor_wbuf_flash_setup(c) (0) +#define jffs2_nor_wbuf_flash_cleanup(c) do {} while (0) #else /* NAND and/or ECC'd NOR support present */ #define jffs2_is_writebuffered(c) (c->wbuf != NULL) #define SECTOR_ADDR(x) ( ((unsigned long)(x) / (unsigned long)(c->sector_size)) * c->sector_size ) -#define jffs2_can_mark_obsolete(c) ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & MTD_ECC)) || c->mtd->type == MTD_RAM) +#define jffs2_can_mark_obsolete(c) \ + ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & (MTD_ECC|MTD_PROGRAM_REGIONS))) || \ + c->mtd->type == MTD_RAM) #define jffs2_cleanmarker_oob(c) (c->mtd->type == MTD_NANDFLASH) #define jffs2_flash_write_oob(c, ofs, len, retlen, buf) ((c)->mtd->write_oob((c)->mtd, ofs, len, retlen, buf)) @@ -124,6 +129,10 @@ void jffs2_nor_ecc_flash_cleanup(struct jffs2_sb_info *c); int jffs2_dataflash_setup(struct jffs2_sb_info *c); void jffs2_dataflash_cleanup(struct jffs2_sb_info *c); +#define jffs2_nor_wbuf_flash(c) (c->mtd->type == MTD_NORFLASH && (c->mtd->flags & MTD_PROGRAM_REGIONS)) +int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c); +void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c); + #endif /* WRITEBUFFER */ /* erase.c */ diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c index 251ac3d86f9..8c06d3a2b17 100644 --- a/fs/jffs2/wbuf.c +++ b/fs/jffs2/wbuf.c @@ -9,7 +9,7 @@ * * For licensing information, see the file 'LICENCE' in this directory. * - * $Id: wbuf.c,v 1.96 2005/07/22 10:32:08 dedekind Exp $ + * $Id: wbuf.c,v 1.97 2005/08/06 04:51:30 nico Exp $ * */ @@ -1235,3 +1235,23 @@ int jffs2_nor_ecc_flash_setup(struct jffs2_sb_info *c) { void jffs2_nor_ecc_flash_cleanup(struct jffs2_sb_info *c) { kfree(c->wbuf); } + +int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) { + /* Cleanmarker currently occupies a whole programming region */ + c->cleanmarker_size = MTD_PROGREGION_SIZE(c->mtd); + + /* Initialize write buffer */ + init_rwsem(&c->wbuf_sem); + c->wbuf_pagesize = MTD_PROGREGION_SIZE(c->mtd); + c->wbuf_ofs = 0xFFFFFFFF; + + c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL); + if (!c->wbuf) + return -ENOMEM; + + return 0; +} + +void jffs2_nor_wbuf_flash_cleanup(struct jffs2_sb_info *c) { + kfree(c->wbuf); +} |