diff options
Diffstat (limited to 'include/sunxi_gpio.h')
| -rw-r--r-- | include/sunxi_gpio.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/include/sunxi_gpio.h b/include/sunxi_gpio.h new file mode 100644 index 0000000000..e0fb5b5da6 --- /dev/null +++ b/include/sunxi_gpio.h @@ -0,0 +1,196 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2007-2012 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * Tom Cubie <tangliang@allwinnertech.com> + * + * Definitions that are shared between the Allwinner pinctrl and GPIO drivers, + * also used by some non-DM SPL code directly. + */ + +#ifndef _SUNXI_GPIO_H +#define _SUNXI_GPIO_H + +#include <linux/types.h> +#include <asm/arch/cpu.h> + +/* + * sunxi has 9 banks of gpio, they are: + * PA0 - PA17 | PB0 - PB23 | PC0 - PC24 + * PD0 - PD27 | PE0 - PE31 | PF0 - PF5 + * PG0 - PG9 | PH0 - PH27 | PI0 - PI12 + */ + +#define SUNXI_GPIO_A 0 +#define SUNXI_GPIO_B 1 +#define SUNXI_GPIO_C 2 +#define SUNXI_GPIO_D 3 +#define SUNXI_GPIO_E 4 +#define SUNXI_GPIO_F 5 +#define SUNXI_GPIO_G 6 +#define SUNXI_GPIO_H 7 +#define SUNXI_GPIO_I 8 + +/* + * sun6i/sun8i and later SoCs have an additional GPIO controller (R_PIO) + * at a different register offset. + * + * sun6i has 2 banks: + * PL0 - PL8 | PM0 - PM7 + * + * sun8i has 1 bank: + * PL0 - PL11 + * + * sun9i has 3 banks: + * PL0 - PL9 | PM0 - PM15 | PN0 - PN1 + */ +#define SUNXI_GPIO_L 11 +#define SUNXI_GPIO_M 12 +#define SUNXI_GPIO_N 13 + +#define SUN50I_H6_GPIO_POW_MOD_SEL 0x340 +#define SUN50I_H6_GPIO_POW_MOD_VAL 0x348 + +#define SUNXI_GPIOS_PER_BANK 32 +#define SUNXI_PINCTRL_BANK_SIZE 0x24 + +#define SUNXI_GPIO_NEXT(__gpio) \ + ((__gpio##_START) + SUNXI_GPIOS_PER_BANK) + +enum sunxi_gpio_number { + SUNXI_GPIO_A_START = 0, + SUNXI_GPIO_B_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_A), + SUNXI_GPIO_C_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_B), + SUNXI_GPIO_D_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_C), + SUNXI_GPIO_E_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_D), + SUNXI_GPIO_F_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_E), + SUNXI_GPIO_G_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_F), + SUNXI_GPIO_H_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_G), + SUNXI_GPIO_I_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_H), + SUNXI_GPIO_L_START = 352, + SUNXI_GPIO_M_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_L), + SUNXI_GPIO_N_START = SUNXI_GPIO_NEXT(SUNXI_GPIO_M), + SUNXI_GPIO_AXP0_START = 1024, +}; + +/* SUNXI GPIO number definitions */ +#define SUNXI_GPA(_nr) (SUNXI_GPIO_A_START + (_nr)) +#define SUNXI_GPB(_nr) (SUNXI_GPIO_B_START + (_nr)) +#define SUNXI_GPC(_nr) (SUNXI_GPIO_C_START + (_nr)) +#define SUNXI_GPD(_nr) (SUNXI_GPIO_D_START + (_nr)) +#define SUNXI_GPE(_nr) (SUNXI_GPIO_E_START + (_nr)) +#define SUNXI_GPF(_nr) (SUNXI_GPIO_F_START + (_nr)) +#define SUNXI_GPG(_nr) (SUNXI_GPIO_G_START + (_nr)) +#define SUNXI_GPH(_nr) (SUNXI_GPIO_H_START + (_nr)) +#define SUNXI_GPI(_nr) (SUNXI_GPIO_I_START + (_nr)) +#define SUNXI_GPL(_nr) (SUNXI_GPIO_L_START + (_nr)) +#define SUNXI_GPM(_nr) (SUNXI_GPIO_M_START + (_nr)) +#define SUNXI_GPN(_nr) (SUNXI_GPIO_N_START + (_nr)) + +#define SUNXI_GPAXP0(_nr) (SUNXI_GPIO_AXP0_START + (_nr)) + +/* GPIO pin function config */ +#define SUNXI_GPIO_INPUT 0 +#define SUNXI_GPIO_OUTPUT 1 +#define SUNXI_GPIO_DISABLE 7 + +#define SUN8I_H3_GPA_UART0 2 +#define SUN8I_H3_GPA_UART2 2 + +#define SUN4I_GPB_PWM 2 +#define SUN4I_GPB_TWI0 2 +#define SUN4I_GPB_TWI1 2 +#define SUN5I_GPB_TWI1 2 +#define SUN8I_V3S_GPB_TWI0 2 +#define SUN4I_GPB_UART0 2 +#define SUN5I_GPB_UART0 2 +#define SUN8I_GPB_UART2 2 +#define SUN8I_A33_GPB_UART0 3 +#define SUN8I_A83T_GPB_UART0 2 +#define SUN8I_V3S_GPB_UART0 3 +#define SUN50I_GPB_UART0 4 + +#define SUNXI_GPC_NAND 2 +#define SUNXI_GPC_SPI0 3 +#define SUNXI_GPC_SDC2 3 +#define SUN6I_GPC_SDC3 4 +#define SUN50I_GPC_SPI0 4 +#define SUNIV_GPC_SPI0 2 + +#define SUNXI_GPD_LCD0 2 +#define SUNXI_GPD_LVDS0 3 + +#define SUNIV_GPE_UART0 5 + +#define SUNXI_GPF_SDC0 2 +#define SUNXI_GPF_UART0 4 +#define SUN8I_GPF_UART0 3 + +#define SUN4I_GPG_SDC1 4 +#define SUN5I_GPG_SDC1 2 +#define SUN6I_GPG_SDC1 2 +#define SUN8I_GPG_SDC1 2 +#define SUN8I_GPG_UART1 2 +#define SUN5I_GPG_UART1 4 + +#define SUN6I_GPH_PWM 2 +#define SUN8I_GPH_PWM 2 +#define SUN4I_GPH_SDC1 5 +#define SUN6I_GPH_TWI0 2 +#define SUN8I_GPH_TWI0 2 +#define SUN50I_GPH_TWI0 2 +#define SUN6I_GPH_TWI1 2 +#define SUN8I_GPH_TWI1 2 +#define SUN50I_GPH_TWI1 2 +#define SUN6I_GPH_UART0 2 +#define SUN9I_GPH_UART0 2 +#define SUN50I_H6_GPH_UART0 2 +#define SUN50I_H616_GPH_UART0 2 + +#define SUNXI_GPI_SDC3 2 + +#define SUN6I_GPL0_R_P2WI_SCK 3 +#define SUN6I_GPL1_R_P2WI_SDA 3 + +#define SUN8I_GPL_R_RSB 2 +#define SUN8I_H3_GPL_R_TWI 2 +#define SUN8I_A23_GPL_R_TWI 3 +#define SUN8I_GPL_R_UART 2 +#define SUN50I_GPL_R_TWI 2 +#define SUN50I_H616_GPL_R_TWI 3 + +#define SUN9I_GPN_R_RSB 3 + +/* GPIO pin pull-up/down config */ +#define SUNXI_GPIO_PULL_DISABLE 0 +#define SUNXI_GPIO_PULL_UP 1 +#define SUNXI_GPIO_PULL_DOWN 2 + +/* Virtual AXP0 GPIOs */ +#define SUNXI_GPIO_AXP0_PREFIX "AXP0-" +#define SUNXI_GPIO_AXP0_VBUS_ENABLE 5 +#define SUNXI_GPIO_AXP0_GPIO_COUNT 6 + +struct sunxi_gpio_plat { + void *regs; + char bank_name[3]; +}; + +/* prototypes for the non-DM GPIO/pinctrl functions, used in the SPL */ +void sunxi_gpio_set_cfgbank(void *bank_base, int pin_offset, u32 val); +void sunxi_gpio_set_cfgpin(u32 pin, u32 val); +int sunxi_gpio_get_cfgbank(void *bank_base, int pin_offset); +int sunxi_gpio_get_cfgpin(u32 pin); +void sunxi_gpio_set_drv(u32 pin, u32 val); +void sunxi_gpio_set_drv_bank(void *bank_base, u32 pin_offset, u32 val); +void sunxi_gpio_set_pull(u32 pin, u32 val); +void sunxi_gpio_set_pull_bank(void *bank_base, int pin_offset, u32 val); +int sunxi_name_to_gpio(const char *name); + +#if !defined CONFIG_SPL_BUILD && defined CONFIG_AXP_GPIO +int axp_gpio_init(void); +#else +static inline int axp_gpio_init(void) { return 0; } +#endif + +#endif /* _SUNXI_GPIO_H */ |