[PATCH 06/11] mtd: nand: remove a bunch of unused commands

Artem Bityutskiy
2013-03-05T13:16:13Z

drivers/mtd/nand/cafe_nand.c | 6 ------
drivers/mtd/nand/nand_base.c | 10 ----------
drivers/mtd/nand/nandsim.c | 8 --------
drivers/mtd/nand/nuc900_nand.c | 9 ---------
include/linux/mtd/nand.h | 20 --------------------
5 files changed, 53 deletions(-)

diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 010d612..a01ccb9 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -303,13 +303,7 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
case NAND_CMD_SEQIN:
case NAND_CMD_RNDIN:
case NAND_CMD_STATUS:
- case NAND_CMD_DEPLETE1:
case NAND_CMD_RNDOUT:
- case NAND_CMD_STATUS_ERROR:
- case NAND_CMD_STATUS_ERROR0:
- case NAND_CMD_STATUS_ERROR1:
- case NAND_CMD_STATUS_ERROR2:
- case NAND_CMD_STATUS_ERROR3:
cafe_writel(cafe, cafe->ctl2, NAND_CTRL2);
return;
}
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 925de01..79b1081 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -668,16 +668,6 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
case NAND_CMD_SEQIN:
case NAND_CMD_RNDIN:
case NAND_CMD_STATUS:
- case NAND_CMD_DEPLETE1:
- return;
-
- case NAND_CMD_STATUS_ERROR:
- case NAND_CMD_STATUS_ERROR0:
- case NAND_CMD_STATUS_ERROR1:
- case NAND_CMD_STATUS_ERROR2:
- case NAND_CMD_STATUS_ERROR3:
- /* Read error status commands require only a short delay */
- udelay(chip->chip_delay);
return;

case NAND_CMD_RESET:
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 891c52a..7199acc 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -218,7 +218,6 @@ MODULE_PARM_DESC(bch, "Enable BCH ecc and set how many bits should "
#define STATE_CMD_READOOB 0x00000005 /* read OOB area */
#define STATE_CMD_ERASE1 0x00000006 /* sector erase first command */
#define STATE_CMD_STATUS 0x00000007 /* read status */
-#define STATE_CMD_STATUS_M 0x00000008 /* read multi-plane status (isn't implemented) */
#define STATE_CMD_SEQIN 0x00000009 /* sequential data input */
#define STATE_CMD_READID 0x0000000A /* read ID */
#define STATE_CMD_ERASE2 0x0000000B /* sector erase second command */
@@ -406,8 +405,6 @@ static struct nandsim_operations {
{OPT_ANY, {STATE_CMD_ERASE1, STATE_ADDR_SEC, STATE_CMD_ERASE2 | ACTION_SECERASE, STATE_READY}},
/* Read status */
{OPT_ANY, {STATE_CMD_STATUS, STATE_DATAOUT_STATUS, STATE_READY}},
- /* Read multi-plane status */
- {OPT_SMARTMEDIA, {STATE_CMD_STATUS_M, STATE_DATAOUT_STATUS_M, STATE_READY}},
/* Read ID */
{OPT_ANY, {STATE_CMD_READID, STATE_ADDR_ZERO, STATE_DATAOUT_ID, STATE_READY}},
/* Large page devices read page */
@@ -1079,8 +1076,6 @@ static char *get_state_name(uint32_t state)
return "STATE_CMD_ERASE1";
case STATE_CMD_STATUS:
return "STATE_CMD_STATUS";
- case STATE_CMD_STATUS_M:
- return "STATE_CMD_STATUS_M";
case STATE_CMD_SEQIN:
return "STATE_CMD_SEQIN";
case STATE_CMD_READID:
@@ -1145,7 +1140,6 @@ static int check_command(int cmd)
case NAND_CMD_RNDOUTSTART:
return 0;

- case NAND_CMD_STATUS_MULTI:
default:
return 1;
}
@@ -1171,8 +1165,6 @@ static uint32_t get_state_by_command(unsigned command)
return STATE_CMD_ERASE1;
case NAND_CMD_STATUS:
return STATE_CMD_STATUS;
- case NAND_CMD_STATUS_MULTI:
- return STATE_CMD_STATUS_M;
case NAND_CMD_SEQIN:
return STATE_CMD_SEQIN;
case NAND_CMD_READID:
diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index a619119..cd6be2e 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -177,15 +177,6 @@ static void nuc900_nand_command_lp(struct mtd_info *mtd, unsigned int command,
case NAND_CMD_SEQIN:
case NAND_CMD_RNDIN:
case NAND_CMD_STATUS:
- case NAND_CMD_DEPLETE1:
- return;
-
- case NAND_CMD_STATUS_ERROR:
- case NAND_CMD_STATUS_ERROR0:
- case NAND_CMD_STATUS_ERROR1:
- case NAND_CMD_STATUS_ERROR2:
- case NAND_CMD_STATUS_ERROR3:
- udelay(chip->chip_delay);
return;

case NAND_CMD_RESET:
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 2aba049..69097e8 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -86,7 +86,6 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
#define NAND_CMD_READOOB 0x50
#define NAND_CMD_ERASE1 0x60
#define NAND_CMD_STATUS 0x70
-#define NAND_CMD_STATUS_MULTI 0x71
#define NAND_CMD_SEQIN 0x80
#define NAND_CMD_RNDIN 0x85
#define NAND_CMD_READID 0x90
@@ -105,25 +104,6 @@ extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
#define NAND_CMD_RNDOUTSTART 0xE0
#define NAND_CMD_CACHEDPROG 0x15

-/* Extended commands for AG-AND device */
-/*
- * Note: the command for NAND_CMD_DEPLETE1 is really 0x00 but
- * there is no way to distinguish that from NAND_CMD_READ0
- * until the remaining sequence of commands has been completed
- * so add a high order bit and mask it off in the command.
- */
-#define NAND_CMD_DEPLETE1 0x100
-#define NAND_CMD_DEPLETE2 0x38
-#define NAND_CMD_STATUS_MULTI 0x71
-#define NAND_CMD_STATUS_ERROR 0x72
-/* multi-bank error status (banks 0-3) */
-#define NAND_CMD_STATUS_ERROR0 0x73
-#define NAND_CMD_STATUS_ERROR1 0x74
-#define NAND_CMD_STATUS_ERROR2 0x75
-#define NAND_CMD_STATUS_ERROR3 0x76
-#define NAND_CMD_STATUS_RESET 0x7f
-#define NAND_CMD_STATUS_CLEAR 0xff
-
#define NAND_CMD_NONE -1

/* Status bits */
--
1.7.10.4