| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * LPC32xx GPIO interface macro for pin mapping. |
| * |
| * (C) Copyright 2015 DENX Software Engineering GmbH |
| * Written-by: Sylvain Lemieux <slemieux@@tycoint.com> |
| */ |
| |
| #ifndef _LPC32XX_GPIO_GRP_H |
| #define _LPC32XX_GPIO_GRP_H |
| |
| /* |
| * Macro to map the pin for the lpc32xx_gpio driver. |
| * Note: - GPIOS are considered here as homogeneous and linear from 0 to 159; |
| * mapping is done per register, as group of 32. |
| * (see drivers/gpio/lpc32xx_gpio.c for details). |
| * - macros can be use with the following pins: |
| * P0.0 - P0.7 |
| * P1.0 - P1.23 |
| * P2.0 - P2.12 |
| * P3 GPI_0 - GPI_9 / GPI_15 - GPI_23 / GPI_25 / GPI_27 - GPI_28 |
| * P3 GPO_0 - GPO_23 |
| * P3 GPIO_0 - GPIO_5 (output register only) |
| */ |
| #define LPC32XX_GPIO_P0_GRP 0 |
| #define LPC32XX_GPIO_P1_GRP 32 |
| #define LPC32XX_GPIO_P2_GRP 64 |
| #define LPC32XX_GPO_P3_GRP 96 |
| #define LPC32XX_GPIO_P3_GRP (LPC32XX_GPO_P3_GRP + 25) |
| #define LPC32XX_GPI_P3_GRP 128 |
| |
| /* |
| * A specific GPIO can be selected with this macro |
| * ie, GPIO P0.1 can be selected with LPC32XX_GPIO(LPC32XX_GPIO_P0_GRP, 1) |
| * See the LPC32x0 User's guide for GPIO group numbers |
| */ |
| #define LPC32XX_GPIO(x, y) ((x) + (y)) |
| |
| #endif /* _LPC32XX_GPIO_GRP_H */ |
