[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>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 0a13bb35f044..245f9098e171 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -143,10 +143,12 @@ struct mtd_info {
         int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
 
         /* This stuff for eXecute-In-Place */
-        int (*point) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char **mtdbuf);
+        /* phys is optional and may be set to NULL */
+        int (*point) (struct mtd_info *mtd, loff_t from, size_t len,
+                        size_t *retlen, void **virt, resource_size_t *phys);
 
         /* We probably shouldn't allow XIP if the unpoint isn't a NULL */
-        void (*unpoint) (struct mtd_info *mtd, u_char * addr, loff_t from, size_t len);
+        void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
 
 
         int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);