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