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authorRobert Jarzmik <robert.jarzmik@free.fr>2011-11-19 16:02:50 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-01-09 18:07:21 +0000
commit376fbf208700f2105d4047b198ca43e1d9db0b33 (patch)
tree6595cac0b20a58e68d4833a005346702c46752d8
parent732b63bd8c70bf8fbc50d3d3cd56c748edb8cfac (diff)
downloadblackbird-obmc-linux-376fbf208700f2105d4047b198ca43e1d9db0b33.tar.gz
blackbird-obmc-linux-376fbf208700f2105d4047b198ca43e1d9db0b33.zip
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@free.fr> Reviewed-by: Ivan Djelic <ivan.djelic@parrot.com> Reviewed-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
-rw-r--r--drivers/mtd/devices/docg3.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h
index 75df3a1060fb..e9967aba80a8 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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