diff options
| author | yanhong.wang <yanhong.wang@starfivetech.com> | 2022-03-22 12:17:37 +0300 |
|---|---|---|
| committer | Yanhong Wang <yanhong.wang@linux.starfivetech.com> | 2022-10-18 11:24:33 +0300 |
| commit | 53d9e9530ae20f804b7ca2766ab125b42ad5bdb3 (patch) | |
| tree | 1dac7608790ca4bc58f8e0e46a69f4edce0bba61 /arch/riscv | |
| parent | 56c86383dc88850ee2e5af197532939b861f573b (diff) | |
| download | u-boot-53d9e9530ae20f804b7ca2766ab125b42ad5bdb3.tar.xz | |
GPIO:Starfive-jh7110: Add GPIO driver for JH7110
Support for GPIO controller on starfive JH7110 SoCs.
Signed-off-by: yanhong.wang <yanhong.wang@starfivetech.com>
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/include/asm/arch-jh7110/gpio.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/arch-jh7110/gpio.h b/arch/riscv/include/asm/arch-jh7110/gpio.h new file mode 100644 index 0000000000..80675d64de --- /dev/null +++ b/arch/riscv/include/asm/arch-jh7110/gpio.h @@ -0,0 +1,53 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2022 Starfive, Inc. + * Author: yanhong <yanhong.wang@starfivetech.com> + * + */ + +#ifndef _GPIO_STARFIVE_H_ +#define _GPIO_STARFIVE_H_ + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#define GPIO_NUM_SHIFT 2 /*one dword include 4 gpios*/ +#define GPIO_BYTE_SHIFT 3 + +#define GPIO_INDEX_MASK 0x3 + +#define GPIO_DOEN_MASK 0x3f +#define GPIO_DOUT_MASK 0x7f +#define GPIO_DIN_MASK 0x7f + +#define NR_GPIOS 64 + +#define GPIO_OFFSET(gpio) \ + (((gpio) >> GPIO_NUM_SHIFT) << GPIO_NUM_SHIFT) + +#define GPIO_SHIFT(gpio) \ + (((gpio) & GPIO_INDEX_MASK) << GPIO_BYTE_SHIFT) + +enum gpio_state { + LOW, + HIGH +}; + +#define GPIO_DOEN 0x0 +#define GPIO_DOUT 0x40 +#define GPIO_DIN 0x80 +#define GPIO_EN 0xdc +#define GPIO_LOW_IE 0x100 +#define GPIO_HIGH_IE 0x104 + +/* Details about a GPIO bank */ +struct starfive_gpio_platdata { + void *base; +}; + +#ifdef __cplusplus +} +#endif + +#endif /* _GPIO_STARFIVE_H_ */ |