| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2012 Vikram Narayananan |
| * <vikram186@gmail.com> |
| * (C) Copyright 2012,2015 Stephen Warren |
| */ |
| |
| #ifndef _BCM2835_GPIO_H_ |
| #define _BCM2835_GPIO_H_ |
| |
| #define BCM2835_GPIO_COUNT 54 |
| |
| #define BCM2835_GPIO_FSEL_MASK 0x7 |
| #define BCM2835_GPIO_INPUT 0x0 |
| #define BCM2835_GPIO_OUTPUT 0x1 |
| #define BCM2835_GPIO_ALT0 0x4 |
| #define BCM2835_GPIO_ALT1 0x5 |
| #define BCM2835_GPIO_ALT2 0x6 |
| #define BCM2835_GPIO_ALT3 0x7 |
| #define BCM2835_GPIO_ALT4 0x3 |
| #define BCM2835_GPIO_ALT5 0x2 |
| |
| #define BCM2835_GPIO_COMMON_BANK(gpio) ((gpio < 32) ? 0 : 1) |
| #define BCM2835_GPIO_COMMON_SHIFT(gpio) (gpio & 0x1f) |
| |
| #define BCM2835_GPIO_FSEL_BANK(gpio) (gpio / 10) |
| #define BCM2835_GPIO_FSEL_SHIFT(gpio) ((gpio % 10) * 3) |
| |
| /* BCM2835 GPIO Pull-up/down register offsets */ |
| #define BCM2835_GPPUD 37 |
| #define BCM2835_GPPUDCLK0 38 |
| |
| /* BCM2711 GPIO Pull-up/down control */ |
| #define BCM2711_GPPUD_CNTRL_REG0 57 |
| #define BCM2711_PUD_REG_OFFSET(gpio) ((gpio) / 16) |
| #define BCM2711_PUD_REG_SHIFT(gpio) (((gpio) % 16) * 2) |
| #define BCM2711_PUD_2711_MASK 0x3 |
| |
| struct bcm2835_gpio_regs { |
| u32 gpfsel[6]; |
| u32 reserved1; |
| u32 gpset[2]; |
| u32 reserved2; |
| u32 gpclr[2]; |
| u32 reserved3; |
| u32 gplev[2]; |
| u32 reserved4; |
| u32 gpeds[2]; |
| u32 reserved5; |
| u32 gpren[2]; |
| u32 reserved6; |
| u32 gpfen[2]; |
| u32 reserved7; |
| u32 gphen[2]; |
| u32 reserved8; |
| u32 gplen[2]; |
| u32 reserved9; |
| u32 gparen[2]; |
| u32 reserved10; |
| u32 gppud; |
| u32 gppudclk[2]; |
| }; |
| |
| /** |
| * struct bcm2835_gpio_plat - GPIO platform description |
| * |
| * @base: Base address of GPIO controller |
| */ |
| struct bcm2835_gpio_plat { |
| unsigned long base; |
| }; |
| |
| #endif /* _BCM2835_GPIO_H_ */ |
