mtd: add MEMERASE64 ioctl for >4GiB devices

New MEMERASE/MEMREADOOB/MEMWRITEOOB ioctls are needed in order to support
64-bit offsets into large NAND flash devices.

Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index b6595b3c68b6..2e32be1e3a1e 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -12,6 +12,11 @@ struct erase_info_user {
         __u32 length;
 };
 
+struct erase_info_user64 {
+        __u64 start;
+        __u64 length;
+};
+
 struct mtd_oob_buf {
         __u32 start;
         __u32 length;
@@ -95,6 +100,7 @@ struct otp_info {
 #define ECCGETLAYOUT            _IOR('M', 17, struct nand_ecclayout)
 #define ECCGETSTATS             _IOR('M', 18, struct mtd_ecc_stats)
 #define MTDFILEMODE             _IO('M', 19)
+#define MEMERASE64              _IOW('M', 20, struct erase_info_user64)
 
 /*
  * Obsolete legacy interface. Keep it in order not to break userspace