1 /* 2 * LPC32xx GPIO interface macro for pin mapping. 3 * 4 * (C) Copyright 2015 DENX Software Engineering GmbH 5 * Written-by: Sylvain Lemieux <slemieux@@tycoint.com> 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 #ifndef _LPC32XX_GPIO_GRP_H 11 #define _LPC32XX_GPIO_GRP_H 12 13 /* 14 * Macro to map the pin for the lpc32xx_gpio driver. 15 * Note: - GPIOS are considered here as homogeneous and linear from 0 to 159; 16 * mapping is done per register, as group of 32. 17 * (see drivers/gpio/lpc32xx_gpio.c for details). 18 * - macros can be use with the following pins: 19 * P0.0 - P0.7 20 * P1.0 - P1.23 21 * P2.0 - P2.12 22 * P3 GPI_0 - GPI_9 / GPI_15 - GPI_23 / GPI_25 / GPI_27 - GPI_28 23 * P3 GPO_0 - GPO_23 24 * P3 GPIO_0 - GPIO_5 (output register only) 25 */ 26 #define LPC32XX_GPIO_P0_GRP 0 27 #define LPC32XX_GPIO_P1_GRP 32 28 #define LPC32XX_GPIO_P2_GRP 64 29 #define LPC32XX_GPO_P3_GRP 96 30 #define LPC32XX_GPIO_P3_GRP (LPC32XX_GPO_P3_GRP + 25) 31 #define LPC32XX_GPI_P3_GRP 128 32 33 /* 34 * A specific GPIO can be selected with this macro 35 * ie, GPIO P0.1 can be selected with LPC32XX_GPIO(LPC32XX_GPIO_P0_GRP, 1) 36 * See the LPC32x0 User's guide for GPIO group numbers 37 */ 38 #define LPC32XX_GPIO(x, y) ((x) + (y)) 39 40 #endif /* _LPC32XX_GPIO_GRP_H */ 41