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| author | Gregory CLEMENT <gclement00@gmail.com> | 2009-02-16 21:21:47 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-02-16 21:40:39 +0000 |
| commit | 744f6592727a7ab9e3ca4266bedaa786825a31bb (patch) | |
| tree | 51dc15e7d19eaa5e00c92e6d19cdee34f1106c0b | |
| parent | 2b768b6cdbcf7fa0761e6c35c6ea288297582c43 (diff) | |
| download | op-kernel-dev-744f6592727a7ab9e3ca4266bedaa786825a31bb.zip op-kernel-dev-744f6592727a7ab9e3ca4266bedaa786825a31bb.tar.gz | |
[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>
| -rw-r--r-- | arch/arm/mach-at91/include/mach/board.h | 1 | ||||
| -rw-r--r-- | arch/avr32/mach-at32ap/include/mach/board.h | 1 | ||||
| -rw-r--r-- | drivers/mtd/nand/atmel_nand.c | 3 |
3 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h index fb51f0e..0b3ae21 100644 --- a/arch/arm/mach-at91/include/mach/board.h +++ b/arch/arm/mach-at91/include/mach/board.h @@ -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 */ diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h index aafaf7a..cff8e84f 100644 --- a/arch/avr32/mach-at32ap/include/mach/board.h +++ b/arch/avr32/mach-at32ap/include/mach/board.h @@ -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 */ diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index c98c1570..47a33ce 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -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; } /* |
