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authorNicolas Pitre <nico@cam.org>2005-02-08 17:45:55 +0000
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-05-23 12:26:04 +0200
commit31f4233baeaaeb7c563d2766781c6592ad259b6a (patch)
tree475ffcfcc1fe91a47d6b8c413d8f25b3fdfcc1c0 /include/mtd/mtd-abi.h
parentf77814dd5728edaf1239d19755d2aa0d8c33d861 (diff)
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[MTD] User interface to Protection Registers
This is implemented using a ioctl to switch the MTD char device into one of the different OTP "modes", at which point read/write/seek can operate on the selected OTP area. Also some extra ioctls to query for size and lock protection segments or groups. Some example user space utilities are provided. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/mtd/mtd-abi.h')
-rw-r--r--include/mtd/mtd-abi.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index 091eb571e99..c984cb2c941 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -1,5 +1,5 @@
/*
- * $Id: mtd-abi.h,v 1.8 2005/02/08 17:11:16 nico Exp $
+ * $Id: mtd-abi.h,v 1.9 2005/02/08 17:45:52 nico Exp $
*
* Portions of MTD ABI definition which are shared by kernel and user space
*/
@@ -61,6 +61,11 @@ struct mtd_oob_buf {
#define MTD_NANDECC_AUTOPLACE 2 // Use the default placement scheme
#define MTD_NANDECC_PLACEONLY 3 // Use the given placement in the structure (Do not store ecc result on read)
+/* OTP mode selection */
+#define MTD_OTP_OFF 0
+#define MTD_OTP_FACTORY 1
+#define MTD_OTP_USER 2
+
struct mtd_info_user {
uint8_t type;
uint32_t flags;
@@ -98,6 +103,10 @@ struct otp_info {
#define MEMGETOOBSEL _IOR('M', 10, struct nand_oobinfo)
#define MEMGETBADBLOCK _IOW('M', 11, loff_t)
#define MEMSETBADBLOCK _IOW('M', 12, loff_t)
+#define OTPSELECT _IOR('M', 13, int)
+#define OTPGETREGIONCOUNT _IOW('M', 14, int)
+#define OTPGETREGIONINFO _IOW('M', 15, struct otp_info)
+#define OTPLOCK _IOR('M', 16, struct otp_info)
struct nand_oobinfo {
uint32_t useecc;