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Commit 744f6592 authored Feb 16, 2009 by Gregory CLEMENT Committed by Russell King Feb 16, 2009

[ARM] 5400/1: Add support for inverted rdy_busy pin for Atmel nand device controller



Add support for inverted rdy_busy pin for Atmel nand device controller
It will fix building error on NeoCore926 board.

Acked-by: Andrew Victor <linux@maxim.org.za>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Gregory CLEMENT <gclement@adeneo.adetelgroup.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 2b768b6c

arch/arm/mach-at91/include/mach/board.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -93,6 +93,7 @@ struct atmel_nand_data {
		u8 enable_pin; /* chip enable */
		u8 det_pin; /* card detect */
		u8 rdy_pin; /* ready/busy */
		u8 rdy_pin_active_low; /* rdy_pin value is inverted */
		u8 ale; /* address line number connected to ALE */
		u8 cle; /* address line number connected to CLE */
		u8 bus_width_16; /* buswidth is 16 bit */

arch/avr32/mach-at32ap/include/mach/board.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -116,6 +116,7 @@ struct atmel_nand_data {
		int enable_pin; /* chip enable */
		int det_pin; /* card detect */
		int rdy_pin; /* ready/busy */
		u8 rdy_pin_active_low; /* rdy_pin value is inverted */
		u8 ale; /* address line number connected to ALE */
		u8 cle; /* address line number connected to CLE */
		u8 bus_width_16; /* buswidth is 16 bit */

drivers/mtd/nand/atmel_nand.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -139,7 +139,8 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
		struct nand_chip *nand_chip = mtd->priv;
		struct atmel_nand_host *host = nand_chip->priv;

		return gpio_get_value(host->board->rdy_pin);
		return gpio_get_value(host->board->rdy_pin) ^
		!!host->board->rdy_pin_active_low;
		}

		/*