diff options
Diffstat (limited to 'arch/openrisc/include/asm/gpio.h')
-rw-r--r-- | arch/openrisc/include/asm/gpio.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/arch/openrisc/include/asm/gpio.h b/arch/openrisc/include/asm/gpio.h deleted file mode 100644 index c57a430275..0000000000 --- a/arch/openrisc/include/asm/gpio.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * OpenRISC gpio driver - * - * Copyright (C) 2011 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> - * - * based on nios2 gpio driver - * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw> - * - * when CONFIG_SYS_GPIO_BASE is not defined, board may provide - * its own driver. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifdef CONFIG_SYS_GPIO_BASE -#include <asm/io.h> - -static inline int gpio_request(unsigned gpio, const char *label) -{ - return 0; -} - -static inline int gpio_free(unsigned gpio) -{ - return 0; -} - -static inline int gpio_get_value(unsigned gpio) -{ - return (readb(CONFIG_SYS_GPIO_BASE + gpio/8) >> gpio%8) & 0x1; -} - -static inline void gpio_set_value(unsigned gpio, int value) -{ - u8 tmp = readb(CONFIG_SYS_GPIO_BASE + gpio/8); - - if (value) - tmp |= (1 << gpio%8); - else - tmp &= ~(1 << gpio%8); - writeb(tmp, CONFIG_SYS_GPIO_BASE + gpio/8); -} - -static inline int gpio_direction_input(unsigned gpio) -{ - gpio_set_value(gpio + CONFIG_SYS_GPIO_WIDTH, 0); - - return 0; -} - -static inline int gpio_direction_output(unsigned gpio, int value) -{ - gpio_set_value(gpio + CONFIG_SYS_GPIO_WIDTH, 1); - gpio_set_value(gpio, value); - - return 0; -} - -static inline int gpio_is_valid(int number) -{ - return ((unsigned)number) < CONFIG_SYS_GPIO_WIDTH; -} -#else -extern int gpio_request(unsigned gpio, const char *label); -extern int gpio_free(unsigned gpio); -extern int gpio_direction_input(unsigned gpio); -extern int gpio_direction_output(unsigned gpio, int value); -extern int gpio_get_value(unsigned gpio); -extern void gpio_set_value(unsigned gpio, int value); -extern int gpio_is_valid(int number); -#endif /* CONFIG_SYS_GPIO_BASE */ |