2 * LPC32xx GPIO interface macro for pin mapping.
4 * (C) Copyright 2015 DENX Software Engineering GmbH
5 * Written-by: Sylvain Lemieux <slemieux@@tycoint.com>
7 * SPDX-License-Identifier: GPL-2.0+
10 #ifndef _LPC32XX_GPIO_GRP_H
11 #define _LPC32XX_GPIO_GRP_H
14 * Macro to map the pin for the lpc32xx_gpio driver.
15 * Note: - GPIOS are considered here as homogeneous and linear, from 0 to 127;
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:
22 * P3 GPI_0 - GPI_9 / GPI_15 - GPI_23 / GPI_25 / GPI_27 - GPI_28
24 * P3 GPIO_0 - GPIO_5 (output register only)
26 #define LPC32XX_GPIO_P0_GRP 0
27 #define LPC32XX_GPIO_P1_GRP 32
28 #define LPC32XX_GPIO_P2_GRP 64
29 #define LPC32XX_GPI_P3_GRP 96
30 #define LPC32XX_GPO_P3_GRP 96
31 #define LPC32XX_GPIO_P3_GRP (LPC32XX_GPO_P3_GRP + 25)
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
38 #define LPC32XX_GPIO(x, y) ((x) + (y))
40 #endif /* _LPC32XX_GPIO_GRP_H */