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