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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 /drivers/mtd/devices/phram.c
parent27c72b040c0be8f3704ed0b6b84c12cbba24a7e8 (diff)
[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 'drivers/mtd/devices/phram.c')
-rw-r--r--drivers/mtd/devices/phram.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index 5f960182da9..c7987b1c5e0 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -57,20 +57,21 @@ static int phram_erase(struct mtd_info *mtd, struct erase_info *instr)
}
static int phram_point(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char **mtdbuf)
+ size_t *retlen, void **virt, resource_size_t *phys)
{
- u_char *start = mtd->priv;
-
if (from + len > mtd->size)
return -EINVAL;
- *mtdbuf = start + from;
+ /* can we return a physical address with this driver? */
+ if (phys)
+ return -EINVAL;
+
+ *virt = mtd->priv + from;
*retlen = len;
return 0;
}
-static void phram_unpoint(struct mtd_info *mtd, u_char *addr, loff_t from,
- size_t len)
+static void phram_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
{
}