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-rw-r--r--fs/jffs2/fs.c12
-rw-r--r--fs/jffs2/os-linux.h10
-rw-r--r--fs/jffs2/wbuf.c36
3 files changed, 4 insertions, 54 deletions
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index a0f84673ce5..79f70251a4e 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -664,13 +664,6 @@ static int jffs2_flash_setup(struct jffs2_sb_info *c) {
664 return ret; 664 return ret;
665 } 665 }
666 666
667 /* add setups for other bizarre flashes here... */
668 if (jffs2_nor_ecc(c)) {
669 ret = jffs2_nor_ecc_flash_setup(c);
670 if (ret)
671 return ret;
672 }
673
674 /* and Dataflash */ 667 /* and Dataflash */
675 if (jffs2_dataflash(c)) { 668 if (jffs2_dataflash(c)) {
676 ret = jffs2_dataflash_setup(c); 669 ret = jffs2_dataflash_setup(c);
@@ -694,11 +687,6 @@ void jffs2_flash_cleanup(struct jffs2_sb_info *c) {
694 jffs2_nand_flash_cleanup(c); 687 jffs2_nand_flash_cleanup(c);
695 } 688 }
696 689
697 /* add cleanups for other bizarre flashes here... */
698 if (jffs2_nor_ecc(c)) {
699 jffs2_nor_ecc_flash_cleanup(c);
700 }
701
702 /* and DataFlash */ 690 /* and DataFlash */
703 if (jffs2_dataflash(c)) { 691 if (jffs2_dataflash(c)) {
704 jffs2_dataflash_cleanup(c); 692 jffs2_dataflash_cleanup(c);
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index d2ad2a2081d..1a6eb955e0b 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -92,11 +92,7 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f)
92#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e) 92#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
93#define jffs2_wbuf_timeout NULL 93#define jffs2_wbuf_timeout NULL
94#define jffs2_wbuf_process NULL 94#define jffs2_wbuf_process NULL
95#define jffs2_nor_ecc(c) (0)
96#define jffs2_dataflash(c) (0) 95#define jffs2_dataflash(c) (0)
97#define jffs2_nor_wbuf_flash(c) (0)
98#define jffs2_nor_ecc_flash_setup(c) (0)
99#define jffs2_nor_ecc_flash_cleanup(c) do {} while (0)
100#define jffs2_dataflash_setup(c) (0) 96#define jffs2_dataflash_setup(c) (0)
101#define jffs2_dataflash_cleanup(c) do {} while (0) 97#define jffs2_dataflash_cleanup(c) do {} while (0)
102#define jffs2_nor_wbuf_flash_setup(c) (0) 98#define jffs2_nor_wbuf_flash_setup(c) (0)
@@ -110,7 +106,7 @@ static inline void jffs2_init_inode_info(struct jffs2_inode_info *f)
110#define jffs2_can_mark_obsolete(c) (0) 106#define jffs2_can_mark_obsolete(c) (0)
111#else 107#else
112#define jffs2_can_mark_obsolete(c) \ 108#define jffs2_can_mark_obsolete(c) \
113 ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & (MTD_ECC|MTD_PROGRAM_REGIONS))) || \ 109 ((c->mtd->type == MTD_NORFLASH && !(c->mtd->flags & (MTD_PROGRAM_REGIONS))) || \
114 c->mtd->type == MTD_RAM) 110 c->mtd->type == MTD_RAM)
115#endif 111#endif
116 112
@@ -135,10 +131,6 @@ int jffs2_flush_wbuf_pad(struct jffs2_sb_info *c);
135int jffs2_nand_flash_setup(struct jffs2_sb_info *c); 131int jffs2_nand_flash_setup(struct jffs2_sb_info *c);
136void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c); 132void jffs2_nand_flash_cleanup(struct jffs2_sb_info *c);
137 133
138#define jffs2_nor_ecc(c) (c->mtd->type == MTD_NORFLASH && (c->mtd->flags & MTD_ECC))
139int jffs2_nor_ecc_flash_setup(struct jffs2_sb_info *c);
140void jffs2_nor_ecc_flash_cleanup(struct jffs2_sb_info *c);
141
142#define jffs2_dataflash(c) (c->mtd->type == MTD_DATAFLASH) 134#define jffs2_dataflash(c) (c->mtd->type == MTD_DATAFLASH)
143int jffs2_dataflash_setup(struct jffs2_sb_info *c); 135int jffs2_dataflash_setup(struct jffs2_sb_info *c);
144void jffs2_dataflash_cleanup(struct jffs2_sb_info *c); 136void jffs2_dataflash_cleanup(struct jffs2_sb_info *c);
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 355226d8ce2..087c2e438a6 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -637,17 +637,6 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs, unsig
637 memset(c->wbuf,0xff,c->wbuf_pagesize); 637 memset(c->wbuf,0xff,c->wbuf_pagesize);
638 } 638 }
639 639
640 /* Fixup the wbuf if we are moving to a new eraseblock. The checks below
641 fail for ECC'd NOR because cleanmarker == 16, so a block starts at
642 xxx0010. */
643 if (jffs2_nor_ecc(c)) {
644 if (((c->wbuf_ofs % c->sector_size) == 0) && !c->wbuf_len) {
645 c->wbuf_ofs = PAGE_DIV(to);
646 c->wbuf_len = PAGE_MOD(to);
647 memset(c->wbuf,0xff,c->wbuf_pagesize);
648 }
649 }
650
651 /* Sanity checks on target address. 640 /* Sanity checks on target address.
652 It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs), 641 It's permitted to write at PAD(c->wbuf_len+c->wbuf_ofs),
653 and it's permitted to write at the beginning of a new 642 and it's permitted to write at the beginning of a new
@@ -1244,29 +1233,10 @@ void jffs2_dataflash_cleanup(struct jffs2_sb_info *c) {
1244 kfree(c->wbuf); 1233 kfree(c->wbuf);
1245} 1234}
1246 1235
1247int jffs2_nor_ecc_flash_setup(struct jffs2_sb_info *c) {
1248 /* Cleanmarker is actually larger on the flashes */
1249 c->cleanmarker_size = 16;
1250
1251 /* Initialize write buffer */
1252 init_rwsem(&c->wbuf_sem);
1253 c->wbuf_pagesize = c->mtd->eccsize;
1254 c->wbuf_ofs = 0xFFFFFFFF;
1255
1256 c->wbuf = kmalloc(c->wbuf_pagesize, GFP_KERNEL);
1257 if (!c->wbuf)
1258 return -ENOMEM;
1259
1260 return 0;
1261}
1262
1263void jffs2_nor_ecc_flash_cleanup(struct jffs2_sb_info *c) {
1264 kfree(c->wbuf);
1265}
1266
1267int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) { 1236int jffs2_nor_wbuf_flash_setup(struct jffs2_sb_info *c) {
1268 /* Cleanmarker currently occupies a whole programming region */ 1237 /* Cleanmarker currently occupies whole programming regions,
1269 c->cleanmarker_size = c->mtd->writesize; 1238 * either one or 2 for 8Byte STMicro flashes. */
1239 c->cleanmarker_size = max(16u, c->mtd->writesize);
1270 1240
1271 /* Initialize write buffer */ 1241 /* Initialize write buffer */
1272 init_rwsem(&c->wbuf_sem); 1242 init_rwsem(&c->wbuf_sem);