diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/gpio/spear_gpio.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/gpio/spear_gpio.c | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/qemu/roms/u-boot/drivers/gpio/spear_gpio.c b/qemu/roms/u-boot/drivers/gpio/spear_gpio.c deleted file mode 100644 index 367b67016..000000000 --- a/qemu/roms/u-boot/drivers/gpio/spear_gpio.c +++ /dev/null @@ -1,86 +0,0 @@ -/* - * Copyright (C) 2012 Stefan Roese <sr@denx.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * Driver for SPEAr600 GPIO controller - */ - -#include <common.h> -#include <asm/arch/hardware.h> -#include <asm/gpio.h> -#include <asm/io.h> -#include <errno.h> - -static int gpio_direction(unsigned gpio, - enum gpio_direction direction) -{ - struct gpio_regs *regs = (struct gpio_regs *)CONFIG_GPIO_BASE; - u32 val; - - val = readl(®s->gpiodir); - - if (direction == GPIO_DIRECTION_OUT) - val |= 1 << gpio; - else - val &= ~(1 << gpio); - - writel(val, ®s->gpiodir); - - return 0; -} - -int gpio_set_value(unsigned gpio, int value) -{ - struct gpio_regs *regs = (struct gpio_regs *)CONFIG_GPIO_BASE; - - writel(1 << gpio, ®s->gpiodata[DATA_REG_ADDR(gpio)]); - - return 0; -} - -int gpio_get_value(unsigned gpio) -{ - struct gpio_regs *regs = (struct gpio_regs *)CONFIG_GPIO_BASE; - u32 val; - - val = readl(®s->gpiodata[DATA_REG_ADDR(gpio)]); - - return !!val; -} - -int gpio_request(unsigned gpio, const char *label) -{ - if (gpio >= SPEAR_GPIO_COUNT) - return -EINVAL; - - return 0; -} - -int gpio_free(unsigned gpio) -{ - return 0; -} - -void gpio_toggle_value(unsigned gpio) -{ - gpio_set_value(gpio, !gpio_get_value(gpio)); -} - -int gpio_direction_input(unsigned gpio) -{ - return gpio_direction(gpio, GPIO_DIRECTION_IN); -} - -int gpio_direction_output(unsigned gpio, int value) -{ - int ret = gpio_direction(gpio, GPIO_DIRECTION_OUT); - - if (ret < 0) - return ret; - - gpio_set_value(gpio, value); - return 0; -} |