From 90de63324f0abc84f8c1ba56b2848c338cfda1cd Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 19 Aug 2014 09:14:15 +0200 Subject: [PATCH] mtd: bcm47xxnflash: add cmd_ctrl handler MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Brian Norris --- drivers/mtd/nand/bcm47xxnflash/ops_bcm4706.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) 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; -- 2.11.0