[MTD ONENAND] Check OneNAND lock scheme & all block unlock command support

OneNAND lock scheme depends on density and process of chip.
Some OneNAND chips support all block unlock

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index 4a72818d2545..9e409fe6ded6 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -3,7 +3,7 @@
  *
  *  OneNAND Register header file
  *
- *  Copyright (C) 2005 Samsung Electronics
+ *  Copyright (C) 2005-2006 Samsung Electronics
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -72,6 +72,7 @@
 #define ONENAND_DEVICE_VCC_MASK         (0x3)
 
 #define ONENAND_DEVICE_DENSITY_512Mb    (0x002)
+#define ONENAND_DEVICE_DENSITY_1Gb      (0x003)
 
 /*
  * Version ID Register F002h (R)
@@ -110,6 +111,7 @@
 #define ONENAND_CMD_UNLOCK              (0x23)
 #define ONENAND_CMD_LOCK                (0x2A)
 #define ONENAND_CMD_LOCK_TIGHT          (0x2C)
+#define ONENAND_CMD_UNLOCK_ALL          (0x27)
 #define ONENAND_CMD_ERASE               (0x94)
 #define ONENAND_CMD_RESET               (0xF0)
 #define ONENAND_CMD_OTP_ACCESS          (0x65)