| /* |
| * arch/asm-arm/mach-kirkwood/include/mach/gpio.h |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| /* |
| * Based on (mostly copied from) plat-orion based Linux 2.6 kernel driver. |
| * Removed kernel level irq handling. Took some macros from kernel to |
| * allow build. |
| * |
| * Dieter Kiermaier dk-arm-linux@gmx.de |
| */ |
| |
| #ifndef __KIRKWOOD_GPIO_H |
| #define __KIRKWOOD_GPIO_H |
| |
| /* got from kernel include/linux/bitops.h */ |
| #define BITS_PER_BYTE 8 |
| #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) |
| |
| #define GPIO_MAX 50 |
| #define GPIO_OFF(pin) (((pin) >> 5) ? 0x0040 : 0x0000) |
| #define GPIO_OUT(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x00) |
| #define GPIO_IO_CONF(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x04) |
| #define GPIO_BLINK_EN(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x08) |
| #define GPIO_IN_POL(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x0c) |
| #define GPIO_DATA_IN(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x10) |
| #define GPIO_EDGE_CAUSE(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x14) |
| #define GPIO_EDGE_MASK(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x18) |
| #define GPIO_LEVEL_MASK(pin) (MVEBU_GPIO0_BASE + GPIO_OFF(pin) + 0x1c) |
| |
| /* |
| * Kirkwood-specific GPIO API |
| */ |
| |
| void kw_gpio_set_valid(unsigned pin, int mode); |
| int kw_gpio_is_valid(unsigned pin, int mode); |
| int kw_gpio_direction_input(unsigned pin); |
| int kw_gpio_direction_output(unsigned pin, int value); |
| int kw_gpio_get_value(unsigned pin); |
| void kw_gpio_set_value(unsigned pin, int value); |
| void kw_gpio_set_blink(unsigned pin, int blink); |
| void kw_gpio_set_unused(unsigned pin); |
| |
| #define GPIO_INPUT_OK (1 << 0) |
| #define GPIO_OUTPUT_OK (1 << 1) |
| |
| #endif |
