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[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 <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;