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authorRafał Miłecki <zajec5@gmail.com>2014-08-19 09:14:15 +0200
committerBrian Norris <computersforpeace@gmail.com>2014-09-17 23:25:00 -0700
commit90de63324f0abc84f8c1ba56b2848c338cfda1cd (patch)
tree7550a95be7864ba86027cb147aa45dfd1236088d /drivers/mtd
parent5282a3acbfa5295f331696e603a9fd6be3bd4094 (diff)
mtd: bcm47xxnflash: add cmd_ctrl handler
This won't be used by NAND subsystem as we implement cmdfunc on our own, but will allow us to write a bit cleaner code. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
index 1ea5e77facd7..30df67a914b2 100644
--- a/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
+++ b/drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c
@@ -167,6 +167,26 @@ static void bcm47xxnflash_ops_bcm4706_write(struct mtd_info *mtd,
* NAND chip ops
**************************************************/
+static void bcm47xxnflash_ops_bcm4706_cmd_ctrl(struct mtd_info *mtd, int cmd,
+ unsigned int ctrl)
+{
+ struct nand_chip *nand_chip = (struct nand_chip *)mtd->priv;
+ struct bcm47xxnflash *b47n = (struct bcm47xxnflash *)nand_chip->priv;
+ u32 code = 0;
+
+ if (cmd == NAND_CMD_NONE)
+ return;
+
+ if (cmd & NAND_CTRL_CLE)
+ code = cmd | NCTL_CMD0;
+
+ /* nCS is not needed for reset command */
+ if (cmd != NAND_CMD_RESET)
+ code |= NCTL_CSA;
+
+ bcm47xxnflash_ops_bcm4706_ctl_cmd(b47n->cc, code);
+}
+
/* Default nand_select_chip calls cmd_ctrl, which is not used in BCM4706 */
static void bcm47xxnflash_ops_bcm4706_select_chip(struct mtd_info *mtd,
int chip)
@@ -360,6 +380,7 @@ int bcm47xxnflash_ops_bcm4706_init(struct bcm47xxnflash *b47n)
u32 val;
b47n->nand_chip.select_chip = bcm47xxnflash_ops_bcm4706_select_chip;
+ nand_chip->cmd_ctrl = bcm47xxnflash_ops_bcm4706_cmd_ctrl;
nand_chip->dev_ready = bcm47xxnflash_ops_bcm4706_dev_ready;
b47n->nand_chip.cmdfunc = bcm47xxnflash_ops_bcm4706_cmdfunc;
b47n->nand_chip.read_byte = bcm47xxnflash_ops_bcm4706_read_byte;