mtd: docg3: add registers for erasing and writing

Linux-MTD Mailing List linux-mtd at lists.infradead.org
Mon Jan 9 13:59:03 EST 2012


Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=376fbf208700f2105d4047b198ca43e1d9db0b33
Commit:     376fbf208700f2105d4047b198ca43e1d9db0b33
Parent:     732b63bd8c70bf8fbc50d3d3cd56c748edb8cfac
Author:     Robert Jarzmik <robert.jarzmik at free.fr>
AuthorDate: Sat Nov 19 16:02:50 2011 +0100
Committer:  David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Mon Jan 9 18:07:21 2012 +0000

    mtd: docg3: add registers for erasing and writing
    
    Add the required registers and commands to erase and write
    flash pages / blocks.
    
    Signed-off-by: Robert Jarzmik <robert.jarzmik at free.fr>
    Reviewed-by: Ivan Djelic <ivan.djelic at parrot.com>
    Reviewed-by: Mike Dunn <mikedunn at newsguy.com>
    Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
 drivers/mtd/devices/docg3.h |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h
index 75df3a1..e9967ab 100644
--- a/drivers/mtd/devices/docg3.h
+++ b/drivers/mtd/devices/docg3.h
@@ -130,6 +130,8 @@
 #define DOC_SEQ_SET_PLANE1		0x0e
 #define DOC_SEQ_SET_PLANE2		0x10
 #define DOC_SEQ_PAGE_SETUP		0x1d
+#define DOC_SEQ_ERASE			0x27
+#define DOC_SEQ_PLANES_STATUS		0x31
 
 /*
  * Flash commands
@@ -144,7 +146,10 @@
 #define DOC_CMD_PROG_BLOCK_ADDR		0x60
 #define DOC_CMD_PROG_CYCLE1		0x80
 #define DOC_CMD_PROG_CYCLE2		0x10
+#define DOC_CMD_PROG_CYCLE3		0x11
 #define DOC_CMD_ERASECYCLE2		0xd0
+#define DOC_CMD_READ_STATUS		0x70
+#define DOC_CMD_PLANES_STATUS		0x71
 
 #define DOC_CMD_RELIABLE_MODE		0x22
 #define DOC_CMD_FAST_MODE		0xa2
@@ -186,7 +191,7 @@
  */
 #define DOC_ECCCONF1_BCH_SYNDROM_ERR	0x80
 #define DOC_ECCCONF1_UNKOWN1		0x40
-#define DOC_ECCCONF1_UNKOWN2		0x20
+#define DOC_ECCCONF1_PAGE_IS_WRITTEN	0x20
 #define DOC_ECCCONF1_UNKOWN3		0x10
 #define DOC_ECCCONF1_HAMMING_BITS_MASK	0x0f
 
@@ -224,6 +229,13 @@
 #define DOC_READADDR_ONE_BYTE		0x4000
 #define DOC_READADDR_ADDR_MASK		0x1fff
 
+/*
+ * Status of erase and write operation
+ */
+#define DOC_PLANES_STATUS_FAIL		0x01
+#define DOC_PLANES_STATUS_PLANE0_KO	0x02
+#define DOC_PLANES_STATUS_PLANE1_KO	0x04
+
 /**
  * struct docg3 - DiskOnChip driver private data
  * @dev: the device currently under control



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