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[MTD] [NAND] at91_nand: control NCE signal

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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 <anemo@mba.ocn.ne.jp>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Atsushi Nemoto 2008-04-24 23:51:29 +09:00 committed by David Woodhouse
parent d43fa14996
commit 2314488e81
1 changed files with 6 additions and 0 deletions
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6
drivers/mtd/nand/at91_nand.c
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@ -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;