2 * arch/arm/mach-lpc32xx/include/mach/gpio.h
4 * Author: Kevin Wells <kevin.wells@nxp.com>
6 * Copyright (C) 2010 NXP Semiconductors
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #ifndef __ASM_ARCH_GPIO_H
20 #define __ASM_ARCH_GPIO_H
24 * Muxed GP pins need to be setup to the GP state in the board level
25 * code prior to using this driver.
26 * GPI pins : 28xP3 group
27 * GPO pins : 24xP3 group
28 * GPIO pins: 8xP0 group, 24xP1 group, 13xP2 group, 6xP3 group
31 #define LPC32XX_GPIO_P0_MAX 8
32 #define LPC32XX_GPIO_P1_MAX 24
33 #define LPC32XX_GPIO_P2_MAX 13
34 #define LPC32XX_GPIO_P3_MAX 6
35 #define LPC32XX_GPI_P3_MAX 28
36 #define LPC32XX_GPO_P3_MAX 24
38 #define LPC32XX_GPIO_P0_GRP 0
39 #define LPC32XX_GPIO_P1_GRP (LPC32XX_GPIO_P0_GRP + LPC32XX_GPIO_P0_MAX)
40 #define LPC32XX_GPIO_P2_GRP (LPC32XX_GPIO_P1_GRP + LPC32XX_GPIO_P1_MAX)
41 #define LPC32XX_GPIO_P3_GRP (LPC32XX_GPIO_P2_GRP + LPC32XX_GPIO_P2_MAX)
42 #define LPC32XX_GPI_P3_GRP (LPC32XX_GPIO_P3_GRP + LPC32XX_GPIO_P3_MAX)
43 #define LPC32XX_GPO_P3_GRP (LPC32XX_GPI_P3_GRP + LPC32XX_GPI_P3_MAX)
46 * A specific GPIO can be selected with this macro
47 * ie, GPIO_05 can be selected with LPC32XX_GPIO(LPC32XX_GPIO_P3_GRP, 5)
48 * See the LPC32x0 User's guide for GPIO group numbers
50 #define LPC32XX_GPIO(x, y) ((x) + (y))
52 #define __ARM_GPIOLIB_TRIVIAL