linux_dsm_epyc7002/arch/arm/mach-lpc32xx/include/mach/gpio.h
Kevin Wells 437db59036 ARM: LPC32XX: Initial arch header files
Header files for the LPC32xx arch

Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2010-07-27 03:08:08 -07:00

75 lines
2.1 KiB
C

/*
* arch/arm/mach-lpc32xx/include/mach/gpio.h
*
* Author: Kevin Wells <kevin.wells@nxp.com>
*
* Copyright (C) 2010 NXP Semiconductors
*
* 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.
*/
#ifndef __ASM_ARCH_GPIO_H
#define __ASM_ARCH_GPIO_H
#include <asm-generic/gpio.h>
/*
* Note!
* Muxed GP pins need to be setup to the GP state in the board level
* code prior to using this driver.
* GPI pins : 28xP3 group
* GPO pins : 24xP3 group
* GPIO pins: 8xP0 group, 24xP1 group, 13xP2 group, 6xP3 group
*/
#define LPC32XX_GPIO_P0_MAX 8
#define LPC32XX_GPIO_P1_MAX 24
#define LPC32XX_GPIO_P2_MAX 13
#define LPC32XX_GPIO_P3_MAX 6
#define LPC32XX_GPI_P3_MAX 28
#define LPC32XX_GPO_P3_MAX 24
#define LPC32XX_GPIO_P0_GRP 0
#define LPC32XX_GPIO_P1_GRP (LPC32XX_GPIO_P0_GRP + LPC32XX_GPIO_P0_MAX)
#define LPC32XX_GPIO_P2_GRP (LPC32XX_GPIO_P1_GRP + LPC32XX_GPIO_P1_MAX)
#define LPC32XX_GPIO_P3_GRP (LPC32XX_GPIO_P2_GRP + LPC32XX_GPIO_P2_MAX)
#define LPC32XX_GPI_P3_GRP (LPC32XX_GPIO_P3_GRP + LPC32XX_GPIO_P3_MAX)
#define LPC32XX_GPO_P3_GRP (LPC32XX_GPI_P3_GRP + LPC32XX_GPI_P3_MAX)
/*
* A specific GPIO can be selected with this macro
* ie, GPIO_05 can be selected with LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 5)
* See the LPC32x0 User's guide for GPIO group numbers
*/
#define LPC32XX_GPIO(x, y) ((x) + (y))
static inline int gpio_get_value(unsigned gpio)
{
return __gpio_get_value(gpio);
}
static inline void gpio_set_value(unsigned gpio, int value)
{
__gpio_set_value(gpio, value);
}
static inline int gpio_cansleep(unsigned gpio)
{
return __gpio_cansleep(gpio);
}
static inline int gpio_to_irq(unsigned gpio)
{
return __gpio_to_irq(gpio);
}
#endif