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f7c7ab636a
This converts the VBUS detection and enable logic to GPIO instead of separate axp functions and checks that have to be used aside usual GPIO functions. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
217 lines
5.5 KiB
C
217 lines
5.5 KiB
C
/*
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* (C) Copyright 2007-2012
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _SUNXI_GPIO_H
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#define _SUNXI_GPIO_H
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#include <linux/types.h>
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#include <asm/arch/cpu.h>
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/*
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* sunxi has 9 banks of gpio, they are:
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* PA0 - PA17 | PB0 - PB23 | PC0 - PC24
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* PD0 - PD27 | PE0 - PE31 | PF0 - PF5
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* PG0 - PG9 | PH0 - PH27 | PI0 - PI12
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*/
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#define SUNXI_GPIO_A 0
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#define SUNXI_GPIO_B 1
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#define SUNXI_GPIO_C 2
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#define SUNXI_GPIO_D 3
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#define SUNXI_GPIO_E 4
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#define SUNXI_GPIO_F 5
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#define SUNXI_GPIO_G 6
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#define SUNXI_GPIO_H 7
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#define SUNXI_GPIO_I 8
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/*
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* This defines the number of GPIO banks for the _main_ GPIO controller.
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* You should fix up the padding in struct sunxi_gpio_reg below if you
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* change this.
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*/
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#define SUNXI_GPIO_BANKS 9
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/*
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* sun6i/sun8i and later SoCs have an additional GPIO controller (R_PIO)
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* at a different register offset.
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*
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* sun6i has 2 banks:
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* PL0 - PL8 | PM0 - PM7
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*
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* sun8i has 1 bank:
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* PL0 - PL11
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*
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* sun9i has 3 banks:
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* PL0 - PL9 | PM0 - PM15 | PN0 - PN1
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*/
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#define SUNXI_GPIO_L 11
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#define SUNXI_GPIO_M 12
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#define SUNXI_GPIO_N 13
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struct sunxi_gpio {
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u32 cfg[4];
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u32 dat;
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u32 drv[2];
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u32 pull[2];
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};
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/* gpio interrupt control */
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struct sunxi_gpio_int {
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u32 cfg[3];
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u32 ctl;
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u32 sta;
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u32 deb; /* interrupt debounce */
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};
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struct sunxi_gpio_reg {
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struct sunxi_gpio gpio_bank[SUNXI_GPIO_BANKS];
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u8 res[0xbc];
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struct sunxi_gpio_int gpio_int;
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};
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#define BANK_TO_GPIO(bank) (((bank) < SUNXI_GPIO_L) ? \
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&((struct sunxi_gpio_reg *)SUNXI_PIO_BASE)->gpio_bank[bank] : \
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&((struct sunxi_gpio_reg *)SUNXI_R_PIO_BASE)->gpio_bank[(bank) - SUNXI_GPIO_L])
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#define GPIO_BANK(pin) ((pin) >> 5)
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#define GPIO_NUM(pin) ((pin) & 0x1f)
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#define GPIO_CFG_INDEX(pin) (((pin) & 0x1f) >> 3)
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#define GPIO_CFG_OFFSET(pin) ((((pin) & 0x1f) & 0x7) << 2)
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#define GPIO_DRV_INDEX(pin) (((pin) & 0x1f) >> 4)
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#define GPIO_DRV_OFFSET(pin) ((((pin) & 0x1f) & 0xf) << 1)
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#define GPIO_PULL_INDEX(pin) (((pin) & 0x1f) >> 4)
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#define GPIO_PULL_OFFSET(pin) ((((pin) & 0x1f) & 0xf) << 1)
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/* GPIO bank sizes */
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#define SUNXI_GPIO_A_NR 32
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#define SUNXI_GPIO_B_NR 32
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#define SUNXI_GPIO_C_NR 32
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#define SUNXI_GPIO_D_NR 32
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#define SUNXI_GPIO_E_NR 32
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#define SUNXI_GPIO_F_NR 32
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#define SUNXI_GPIO_G_NR 32
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#define SUNXI_GPIO_H_NR 32
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#define SUNXI_GPIO_I_NR 32
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#define SUNXI_GPIO_L_NR 32
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#define SUNXI_GPIO_M_NR 32
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#define SUNXI_GPIO_NEXT(__gpio) \
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((__gpio##_START) + (__gpio##_NR) + 0)
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enum sunxi_gpio_number {
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SUNXI_GPIO_A_START = 0,
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SUNXI_GPIO_B_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_A),
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SUNXI_GPIO_C_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_B),
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SUNXI_GPIO_D_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_C),
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SUNXI_GPIO_E_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_D),
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SUNXI_GPIO_F_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_E),
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SUNXI_GPIO_G_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_F),
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SUNXI_GPIO_H_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_G),
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SUNXI_GPIO_I_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_H),
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SUNXI_GPIO_L_START = 352,
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SUNXI_GPIO_M_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_L),
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SUNXI_GPIO_N_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_M),
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SUNXI_GPIO_AXP0_START = 1024,
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};
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/* SUNXI GPIO number definitions */
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#define SUNXI_GPA(_nr) (SUNXI_GPIO_A_START + (_nr))
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#define SUNXI_GPB(_nr) (SUNXI_GPIO_B_START + (_nr))
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#define SUNXI_GPC(_nr) (SUNXI_GPIO_C_START + (_nr))
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#define SUNXI_GPD(_nr) (SUNXI_GPIO_D_START + (_nr))
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#define SUNXI_GPE(_nr) (SUNXI_GPIO_E_START + (_nr))
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#define SUNXI_GPF(_nr) (SUNXI_GPIO_F_START + (_nr))
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#define SUNXI_GPG(_nr) (SUNXI_GPIO_G_START + (_nr))
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#define SUNXI_GPH(_nr) (SUNXI_GPIO_H_START + (_nr))
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#define SUNXI_GPI(_nr) (SUNXI_GPIO_I_START + (_nr))
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#define SUNXI_GPL(_nr) (SUNXI_GPIO_L_START + (_nr))
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#define SUNXI_GPM(_nr) (SUNXI_GPIO_M_START + (_nr))
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#define SUNXI_GPN(_nr) (SUNXI_GPIO_N_START + (_nr))
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#define SUNXI_GPAXP0(_nr) (SUNXI_GPIO_AXP0_START + (_nr))
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/* GPIO pin function config */
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#define SUNXI_GPIO_INPUT 0
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#define SUNXI_GPIO_OUTPUT 1
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#define SUNXI_GPA0_EMAC 2
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#define SUN6I_GPA0_GMAC 2
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#define SUN7I_GPA0_GMAC 5
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#define SUNXI_GPB0_TWI0 2
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#define SUN4I_GPB22_UART0_TX 2
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#define SUN4I_GPB23_UART0_RX 2
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#define SUN5I_GPB19_UART0_TX 2
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#define SUN5I_GPB20_UART0_RX 2
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#define SUNXI_GPC6_SDC2 3
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#define SUNXI_GPD0_LCD0 2
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#define SUNXI_GPD0_LVDS0 3
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#define SUNXI_GPF0_SDC0 2
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#define SUNXI_GPF2_SDC0 2
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#ifdef CONFIG_MACH_SUN8I
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#define SUNXI_GPF2_UART0_TX 3
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#define SUNXI_GPF4_UART0_RX 3
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#else
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#define SUNXI_GPF2_UART0_TX 4
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#define SUNXI_GPF4_UART0_RX 4
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#endif
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#define SUN4I_GPG0_SDC1 4
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#define SUN5I_GPG3_SDC1 2
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#define SUN5I_GPG3_UART1_TX 4
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#define SUN5I_GPG4_UART1_RX 4
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#define SUN4I_GPH22_SDC1 5
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#define SUN6I_GPH20_UART0_TX 2
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#define SUN6I_GPH21_UART0_RX 2
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#define SUN4I_GPI4_SDC3 2
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#define SUN6I_GPL0_R_P2WI_SCK 3
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#define SUN6I_GPL1_R_P2WI_SDA 3
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#define SUN8I_GPL0_R_RSB_SCK 2
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#define SUN8I_GPL1_R_RSB_SDA 2
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#define SUN8I_GPL2_R_UART_TX 2
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#define SUN8I_GPL3_R_UART_RX 2
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#define SUN9I_GPN0_R_RSB_SCK 3
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#define SUN9I_GPN1_R_RSB_SDA 3
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/* GPIO pin pull-up/down config */
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#define SUNXI_GPIO_PULL_DISABLE 0
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#define SUNXI_GPIO_PULL_UP 1
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#define SUNXI_GPIO_PULL_DOWN 2
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/* Virtual AXP0 GPIOs */
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#define SUNXI_GPIO_AXP0_VBUS_DETECT 8
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#define SUNXI_GPIO_AXP0_VBUS_ENABLE 9
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void sunxi_gpio_set_cfgbank(struct sunxi_gpio *pio, int bank_offset, u32 val);
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void sunxi_gpio_set_cfgpin(u32 pin, u32 val);
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int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset);
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int sunxi_gpio_get_cfgpin(u32 pin);
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int sunxi_gpio_set_drv(u32 pin, u32 val);
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int sunxi_gpio_set_pull(u32 pin, u32 val);
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int sunxi_name_to_gpio(const char *name);
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#define name_to_gpio(name) sunxi_name_to_gpio(name)
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#endif /* _SUNXI_GPIO_H */
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