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authorJared Hulbert <jaredeh@gmail.com>2008-04-29 23:26:49 -0700
committerDavid Woodhouse <dwmw2@infradead.org>2008-05-01 18:59:11 +0100
commita98889f3d8882995b5aa2255b931cf0202325cc0 (patch)
tree686a1d3369143dc46c43709e0c40b2cc8ef619d7 /fs/jffs2
parent27c72b040c0be8f3704ed0b6b84c12cbba24a7e8 (diff)
downloadblackbird-op-linux-a98889f3d8882995b5aa2255b931cf0202325cc0.tar.gz
blackbird-op-linux-a98889f3d8882995b5aa2255b931cf0202325cc0.zip
[MTD][NOR] Add physical address to point() method
Adding the ability to get a physical address from point() in addition to virtual address. This physical address is required for XIP of userspace code from flash. Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Reviewed-by: Jörn Engel <joern@logfs.org> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'fs/jffs2')
-rw-r--r--fs/jffs2/erase.c7
-rw-r--r--fs/jffs2/readinode.c9
-rw-r--r--fs/jffs2/scan.c7
3 files changed, 13 insertions, 10 deletions
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index 5e86f43616a1..dddb2a6c9e2c 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -332,7 +332,8 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
if (c->mtd->point) {
unsigned long *wordebuf;
- ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size, &retlen, (unsigned char **)&ebuf);
+ ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size,
+ &retlen, &ebuf, NULL);
if (ret) {
D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
goto do_flash_read;
@@ -340,7 +341,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
if (retlen < c->sector_size) {
/* Don't muck about if it won't let us point to the whole erase sector */
D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", retlen));
- c->mtd->unpoint(c->mtd, ebuf, jeb->offset, retlen);
+ c->mtd->unpoint(c->mtd, jeb->offset, retlen);
goto do_flash_read;
}
wordebuf = ebuf-sizeof(*wordebuf);
@@ -349,7 +350,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
if (*++wordebuf != ~0)
break;
} while(--retlen);
- c->mtd->unpoint(c->mtd, ebuf, jeb->offset, c->sector_size);
+ c->mtd->unpoint(c->mtd, jeb->offset, c->sector_size);
if (retlen) {
printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08tx\n",
*wordebuf, jeb->offset + c->sector_size-retlen*sizeof(*wordebuf));
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 9fc4833c117c..6ca08ad887c0 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -63,10 +63,11 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
/* TODO: instead, incapsulate point() stuff to jffs2_flash_read(),
* adding and jffs2_flash_read_end() interface. */
if (c->mtd->point) {
- err = c->mtd->point(c->mtd, ofs, len, &retlen, &buffer);
+ err = c->mtd->point(c->mtd, ofs, len, &retlen,
+ (void **)&buffer, NULL);
if (!err && retlen < len) {
JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize);
- c->mtd->unpoint(c->mtd, buffer, ofs, retlen);
+ c->mtd->unpoint(c->mtd, ofs, retlen);
} else if (err)
JFFS2_WARNING("MTD point failed: error code %d.\n", err);
else
@@ -100,7 +101,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
kfree(buffer);
#ifndef __ECOS
else
- c->mtd->unpoint(c->mtd, buffer, ofs, len);
+ c->mtd->unpoint(c->mtd, ofs, len);
#endif
if (crc != tn->data_crc) {
@@ -136,7 +137,7 @@ free_out:
kfree(buffer);
#ifndef __ECOS
else
- c->mtd->unpoint(c->mtd, buffer, ofs, len);
+ c->mtd->unpoint(c->mtd, ofs, len);
#endif
return err;
}
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 8c1e692bef79..1d437de1e9a8 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -97,11 +97,12 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
size_t pointlen;
if (c->mtd->point) {
- ret = c->mtd->point (c->mtd, 0, c->mtd->size, &pointlen, &flashbuf);
+ ret = c->mtd->point(c->mtd, 0, c->mtd->size, &pointlen,
+ (void **)&flashbuf, NULL);
if (!ret && pointlen < c->mtd->size) {
/* Don't muck about if it won't let us point to the whole flash */
D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen));
- c->mtd->unpoint(c->mtd, flashbuf, 0, pointlen);
+ c->mtd->unpoint(c->mtd, 0, pointlen);
flashbuf = NULL;
}
if (ret)
@@ -267,7 +268,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
kfree(flashbuf);
#ifndef __ECOS
else
- c->mtd->unpoint(c->mtd, flashbuf, 0, c->mtd->size);
+ c->mtd->unpoint(c->mtd, 0, c->mtd->size);
#endif
if (s)
kfree(s);
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