diff options
Diffstat (limited to 'arch/arm/include/asm/arch-armada100/gpio.h')
| -rw-r--r-- | arch/arm/include/asm/arch-armada100/gpio.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-armada100/gpio.h b/arch/arm/include/asm/arch-armada100/gpio.h new file mode 100644 index 0000000..b85f6a5 --- /dev/null +++ b/arch/arm/include/asm/arch-armada100/gpio.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2011 + * eInfochips Ltd. <www.einfochips.com> + * Written-by: Ajay Bhargav <contact@8051projects.net> + * + * (C) Copyright 2010 + * Marvell Semiconductor <www.marvell.com> + */ + +#ifndef _ASM_ARCH_GPIO_H +#define _ASM_ARCH_GPIO_H + +#include <asm/types.h> +#include <asm/arch/armada100.h> + +#define GPIO_HIGH 1 +#define GPIO_LOW 0 + +#define GPIO_TO_REG(gp) (gp >> 5) +#define GPIO_TO_BIT(gp) (1 << (gp & 0x1F)) +#define GPIO_VAL(gp, val) ((val >> (gp & 0x1F)) & 0x01) + +static inline void *get_gpio_base(int bank) +{ + const unsigned int offset[4] = {0, 4, 8, 0x100}; + /* gpio register bank offset - refer Appendix A.36 */ + return (struct gpio_reg *)(ARMD1_GPIO_BASE + offset[bank]); +} + +#endif /* _ASM_ARCH_GPIO_H */ |