u-boot/arch/arm/include/asm/arch-mx31/mx31.h
Stefano Babic 7d27cd08b4 MX31: add accessor function to get a gpio
The patch adds an accessor function to get the value of a gpio.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2010-04-30 05:23:25 -05:00

59 lines
1.7 KiB
C

/*
*
* (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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
*/
#ifndef __ASM_ARCH_MX31_H
#define __ASM_ARCH_MX31_H
extern u32 mx31_get_ipg_clk(void);
#define imx_get_uartclk mx31_get_ipg_clk
extern void mx31_gpio_mux(unsigned long mode);
enum mx31_gpio_direction {
MX31_GPIO_DIRECTION_IN,
MX31_GPIO_DIRECTION_OUT,
};
#ifdef CONFIG_MX31_GPIO
extern int mx31_gpio_direction(unsigned int gpio,
enum mx31_gpio_direction direction);
extern void mx31_gpio_set(unsigned int gpio, unsigned int value);
extern int mx31_gpio_get(unsigned int gpio);
#else
static inline int mx31_gpio_direction(unsigned int gpio,
enum mx31_gpio_direction direction)
{
return 1;
}
static inline int mx31_gpio_get(unsigned int gpio)
{
return 1;
}
static inline void mx31_gpio_set(unsigned int gpio, unsigned int value)
{
}
#endif
void mx31_uart1_hw_init(void);
void mx31_spi2_hw_init(void);
#endif /* __ASM_ARCH_MX31_H */