diff options
author | Jared Hulbert <jaredeh@gmail.com> | 2008-04-30 06:26:49 (GMT) |
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committer | David Woodhouse <dwmw2@infradead.org> | 2008-05-01 17:59:11 (GMT) |
commit | a98889f3d8882995b5aa2255b931cf0202325cc0 (patch) | |
tree | 686a1d3369143dc46c43709e0c40b2cc8ef619d7 /drivers/mtd/devices/phram.c | |
parent | 27c72b040c0be8f3704ed0b6b84c12cbba24a7e8 (diff) | |
download | linux-fsl-qoriq-a98889f3d8882995b5aa2255b931cf0202325cc0.tar.xz |
[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.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c index 5f96018..c7987b1 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) { } |