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Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/pxa3xx_nand.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 0fdcc91af1e2..db96a7fe04a1 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -603,18 +603,8 @@ static void set_command_address(struct pxa3xx_nand_info *info,
}
}
-static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
- uint16_t column, int page_addr)
+static void prepare_start_command(struct pxa3xx_nand_info *info, int command)
{
- int addr_cycle, exec_cmd;
- struct pxa3xx_nand_host *host;
- struct mtd_info *mtd;
-
- host = info->host[info->cs];
- mtd = host->mtd;
- addr_cycle = 0;
- exec_cmd = 1;
-
/* reset data and oob column point to handle data */
info->buf_start = 0;
info->buf_count = 0;
@@ -623,10 +613,6 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
info->use_spare = 1;
info->retcode = ERR_NONE;
info->ndcb3 = 0;
- if (info->cs != 0)
- info->ndcb0 = NDCB0_CSEL;
- else
- info->ndcb0 = 0;
switch (command) {
case NAND_CMD_READ0:
@@ -638,14 +624,32 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
case NAND_CMD_PARAM:
info->use_spare = 0;
break;
- case NAND_CMD_SEQIN:
- exec_cmd = 0;
- break;
default:
info->ndcb1 = 0;
info->ndcb2 = 0;
break;
}
+}
+
+static int prepare_set_command(struct pxa3xx_nand_info *info, int command,
+ uint16_t column, int page_addr)
+{
+ int addr_cycle, exec_cmd;
+ struct pxa3xx_nand_host *host;
+ struct mtd_info *mtd;
+
+ host = info->host[info->cs];
+ mtd = host->mtd;
+ addr_cycle = 0;
+ exec_cmd = 1;
+
+ if (info->cs != 0)
+ info->ndcb0 = NDCB0_CSEL;
+ else
+ info->ndcb0 = 0;
+
+ if (command == NAND_CMD_SEQIN)
+ exec_cmd = 0;
addr_cycle = NDCB0_ADDR_CYC(host->row_addr_cycles
+ host->col_addr_cycles);
@@ -780,8 +784,10 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
nand_writel(info, NDTR1CS0, info->ndtr1cs0);
}
+ prepare_start_command(info, command);
+
info->state = STATE_PREPARED;
- exec_cmd = prepare_command_pool(info, command, column, page_addr);
+ exec_cmd = prepare_set_command(info, command, column, page_addr);
if (exec_cmd) {
init_completion(&info->cmd_complete);
init_completion(&info->dev_ready);