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authorNicolas Pitre <nico@cam.org>2005-08-06 05:51:33 +0100
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-11-06 20:13:52 +0100
commit59da721a2288b8aec751a2716f7ab60f2ea0c925 (patch)
tree902a0a61cd3ed7e2dab27f20b4fd541566f598a1 /fs/jffs2/wbuf.c
parente102d54abf6806b95c89142cd0b7e94d709ebcd7 (diff)
downloadlinux-linaro-59da721a2288b8aec751a2716f7ab60f2ea0c925.tar.gz
[JFFS2] Teach JFFS2 about Sibley flash
Intels Sibley flash needs JFFS2 write buffer functionality Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/jffs2/wbuf.c')
-rw-r--r--fs/jffs2/wbuf.c22
1 files changed, 21 insertions, 1 deletions
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);
+}