mirror of
https://github.com/AsahiLinux/u-boot
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86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2023 StarFive Technology Co., Ltd.
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* Author: yanhong <yanhong.wang@starfivetech.com>
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*
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*/
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#ifndef _GPIO_STARFIVE_H_
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#define _GPIO_STARFIVE_H_
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#include <asm/arch/regs.h>
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#define GPIO_NUM_SHIFT 2 /*one dword include 4 gpios*/
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#define GPIO_BYTE_SHIFT 3
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#define GPIO_INDEX_MASK 0x3
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#define GPIO_DOEN_MASK 0x3f
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#define GPIO_DOUT_MASK 0x7f
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#define GPIO_DIN_MASK 0x7f
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#define GPIO_DS_MASK 0x06
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#define GPIO_DS_SHIFT 1
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#define GPIO_SLEW_MASK BIT(5)
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#define GPIO_SLEW_SHIFT 5
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#define GPIO_PULL_MASK 0x18
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#define GPIO_PULL_SHIFT 3
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#define GPIO_PULL_UP 1
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#define GPIO_PULL_DOWN 2
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#define NR_GPIOS 64
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#define GPIO_OFFSET(gpio) \
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(((gpio) >> GPIO_NUM_SHIFT) << GPIO_NUM_SHIFT)
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#define GPIO_SHIFT(gpio) \
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(((gpio) & GPIO_INDEX_MASK) << GPIO_BYTE_SHIFT)
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enum gpio_state {
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LOW,
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HIGH
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};
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#define GPIO_DOEN 0x0
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#define GPIO_DOUT 0x40
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#define GPIO_DIN 0x80
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#define GPIO_EN 0xdc
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#define GPIO_LOW_IE 0x100
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#define GPIO_HIGH_IE 0x104
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#define GPIO_CONFIG 0x120
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#define SYS_IOMUX_DOEN(gpio, oen) \
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clrsetbits_le32(JH7110_SYS_IOMUX + GPIO_OFFSET(gpio), \
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GPIO_DOEN_MASK << GPIO_SHIFT(gpio), \
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(oen) << GPIO_SHIFT(gpio))
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#define SYS_IOMUX_DOUT(gpio, gpo) \
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clrsetbits_le32(JH7110_SYS_IOMUX + GPIO_DOUT + GPIO_OFFSET(gpio), \
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GPIO_DOUT_MASK << GPIO_SHIFT(gpio), \
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((gpo) & GPIO_DOUT_MASK) << GPIO_SHIFT(gpio))
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#define SYS_IOMUX_DIN(gpio, gpi)\
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clrsetbits_le32(JH7110_SYS_IOMUX + GPIO_DIN + GPIO_OFFSET(gpi), \
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GPIO_DIN_MASK << GPIO_SHIFT(gpi), \
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((gpio + 2) & GPIO_DIN_MASK) << GPIO_SHIFT(gpi))
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#define SYS_IOMUX_SET_DS(gpio, ds) \
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clrsetbits_le32(JH7110_SYS_IOMUX + GPIO_CONFIG + gpio * 4, \
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GPIO_DS_MASK, (ds) << GPIO_DS_SHIFT)
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#define SYS_IOMUX_SET_SLEW(gpio, slew) \
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clrsetbits_le32(JH7110_SYS_IOMUX + GPIO_CONFIG + gpio * 4, \
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GPIO_SLEW_MASK, (slew) << GPIO_SLEW_SHIFT)
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#define SYS_IOMUX_SET_PULL(gpio, pull) \
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clrsetbits_le32(JH7110_SYS_IOMUX + GPIO_CONFIG + gpio * 4, \
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GPIO_PULL_MASK, (pull) << GPIO_PULL_SHIFT)
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#define SYS_IOMUX_COMPLEX(gpio, gpi, gpo, oen) \
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do { \
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SYS_IOMUX_DOEN(gpio, oen); \
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SYS_IOMUX_DOUT(gpio, gpo); \
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SYS_IOMUX_DIN(gpio, gpi); \
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} while (0)
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#endif /* _GPIO_STARFIVE_H_ */
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