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author | Aneesh V <aneesh@ti.com> | 2011-07-21 09:29:29 -0400 |
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committer | U-Boot <uboot@aari01-12.(none)> | 2011-08-03 12:49:20 +0200 |
commit | 25223a68e5f7cc32eebb44313efe8ff15a0f5fd6 (patch) | |
tree | d5c464dd2adbf193421abb4b668b968fcc8eb519 /arch/arm/include/asm/omap_gpio.h | |
parent | 924eb369e341fbde52c4fa16a1b5e8208fec94bf (diff) | |
download | u-boot-imx-25223a68e5f7cc32eebb44313efe8ff15a0f5fd6.zip u-boot-imx-25223a68e5f7cc32eebb44313efe8ff15a0f5fd6.tar.gz u-boot-imx-25223a68e5f7cc32eebb44313efe8ff15a0f5fd6.tar.bz2 |
omap: reuse omap3 gpio support in omap4
Signed-off-by: Aneesh V <aneesh@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'arch/arm/include/asm/omap_gpio.h')
-rw-r--r-- | arch/arm/include/asm/omap_gpio.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/arm/include/asm/omap_gpio.h b/arch/arm/include/asm/omap_gpio.h new file mode 100644 index 0000000..3089e1c --- /dev/null +++ b/arch/arm/include/asm/omap_gpio.h @@ -0,0 +1,65 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix@windriver.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * This work is derived from the linux 2.6.27 kernel source + * To fetch, use the kernel repository + * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git + * Use the v2.6.27 tag. + * + * Below is the original's header including its copyright + * + * linux/arch/arm/plat-omap/gpio.c + * + * Support functions for OMAP GPIO + * + * Copyright (C) 2003-2005 Nokia Corporation + * Written by Juha Yrjölä <juha.yrjola@nokia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _GPIO_H +#define _GPIO_H + +#include <asm/arch/cpu.h> + +struct gpio_bank { + void *base; + int method; +}; + +extern const struct gpio_bank *const omap_gpio_bank; + +#define METHOD_GPIO_24XX 4 + +/* This is the interface */ + +/* Request a gpio before using it */ +int omap_request_gpio(int gpio); +/* Reset and free a gpio after using it */ +void omap_free_gpio(int gpio); +/* Sets the gpio as input or output */ +void omap_set_gpio_direction(int gpio, int is_input); +/* Set or clear a gpio output */ +void omap_set_gpio_dataout(int gpio, int enable); +/* Get the value of a gpio input */ +int omap_get_gpio_datain(int gpio); + +#endif /* _GPIO_H_ */ |