From 2314488e81b6f8966d3ea607c4517a64bf58f283 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Thu, 24 Apr 2008 23:51:29 +0900 Subject: [MTD] [NAND] at91_nand: control NCE signal This driver did not control NCE signal during normal operations (only enable NCE on probing and disable NCE on removing). This patch make NCE signal inactive on idle state. Signed-off-by: Atsushi Nemoto Signed-off-by: David Woodhouse --- drivers/mtd/nand/at91_nand.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/mtd') diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/at91_nand.c index 09ebcc9..414ceae 100644 --- a/drivers/mtd/nand/at91_nand.c +++ b/drivers/mtd/nand/at91_nand.c @@ -101,6 +101,12 @@ static void at91_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) struct nand_chip *nand_chip = mtd->priv; struct at91_nand_host *host = nand_chip->priv; + if (host->board->enable_pin && (ctrl & NAND_CTRL_CHANGE)) { + if (ctrl & NAND_NCE) + at91_set_gpio_value(host->board->enable_pin, 0); + else + at91_set_gpio_value(host->board->enable_pin, 1); + } if (cmd == NAND_CMD_NONE) return; -- cgit v1.1