diff options
author | Tom Rini <trini@ti.com> | 2014-05-30 11:34:39 -0400 |
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committer | Tom Rini <trini@ti.com> | 2014-05-30 11:34:39 -0400 |
commit | 90b51c33f362926e17d4c07dcef1ce822abaa89f (patch) | |
tree | 9eb339bb2b864bfac2434d0cd808301506e9bb82 /arch/arm/include/asm/arch-sunxi/gpio.h | |
parent | 95856248ca93b9048d87264fbef67ca382975650 (diff) | |
parent | 9637a1bb896efe392a58dd2772e2c3fcb646409d (diff) |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'arch/arm/include/asm/arch-sunxi/gpio.h')
-rw-r--r-- | arch/arm/include/asm/arch-sunxi/gpio.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h b/arch/arm/include/asm/arch-sunxi/gpio.h new file mode 100644 index 0000000000..892479c183 --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/gpio.h @@ -0,0 +1,147 @@ +/* + * (C) Copyright 2007-2012 + * Allwinner Technology Co., Ltd. <www.allwinnertech.com> + * Tom Cubie <tangliang@allwinnertech.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _SUNXI_GPIO_H +#define _SUNXI_GPIO_H + +#include <linux/types.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 +#define SUNXI_GPIO_BANKS 9 + +struct sunxi_gpio { + u32 cfg[4]; + u32 dat; + u32 drv[2]; + u32 pull[2]; +}; + +/* gpio interrupt control */ +struct sunxi_gpio_int { + u32 cfg[3]; + u32 ctl; + u32 sta; + u32 deb; /* interrupt debounce */ +}; + +struct sunxi_gpio_reg { + struct sunxi_gpio gpio_bank[SUNXI_GPIO_BANKS]; + u8 res[0xbc]; + struct sunxi_gpio_int gpio_int; +}; + +#define BANK_TO_GPIO(bank) \ + &((struct sunxi_gpio_reg *)SUNXI_PIO_BASE)->gpio_bank[bank] + +#define GPIO_BANK(pin) ((pin) >> 5) +#define GPIO_NUM(pin) ((pin) & 0x1f) + +#define GPIO_CFG_INDEX(pin) (((pin) & 0x1f) >> 3) +#define GPIO_CFG_OFFSET(pin) ((((pin) & 0x1f) & 0x7) << 2) + +#define GPIO_DRV_INDEX(pin) (((pin) & 0x1f) >> 4) +#define GPIO_DRV_OFFSET(pin) ((((pin) & 0x1f) & 0xf) << 1) + +#define GPIO_PULL_INDEX(pin) (((pin) & 0x1f) >> 4) +#define GPIO_PULL_OFFSET(pin) ((((pin) & 0x1f) & 0xf) << 1) + +/* GPIO bank sizes */ +#define SUNXI_GPIO_A_NR 32 +#define SUNXI_GPIO_B_NR 32 +#define SUNXI_GPIO_C_NR 32 +#define SUNXI_GPIO_D_NR 32 +#define SUNXI_GPIO_E_NR 32 +#define SUNXI_GPIO_F_NR 32 +#define SUNXI_GPIO_G_NR 32 +#define SUNXI_GPIO_H_NR 32 +#define SUNXI_GPIO_I_NR 32 + +#define SUNXI_GPIO_NEXT(__gpio) \ + ((__gpio##_START) + (__gpio##_NR) + 0) + +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 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)) + +/* GPIO pin function config */ +#define SUNXI_GPIO_INPUT 0 +#define SUNXI_GPIO_OUTPUT 1 + +#define SUNXI_GPA0_EMAC 2 +#define SUN7I_GPA0_GMAC 5 + +#define SUNXI_GPB0_TWI0 2 + +#define SUN4I_GPB22_UART0_TX 2 +#define SUN4I_GPB23_UART0_RX 2 + +#define SUN5I_GPB19_UART0_TX 2 +#define SUN5I_GPB20_UART0_RX 2 + +#define SUN5I_GPG3_UART1_TX 4 +#define SUN5I_GPG4_UART1_RX 4 + +#define SUNXI_GPC6_SDC2 3 + +#define SUNXI_GPF0_SDC0 2 + +#define SUNXI_GPF2_SDC0 2 +#define SUNXI_GPF2_UART0_TX 4 +#define SUNXI_GPF4_UART0_RX 4 + +#define SUN4I_GPG0_SDC1 4 + +#define SUN4I_GPH22_SDC1 5 + +#define SUN4I_GPI4_SDC3 2 + +/* GPIO pin pull-up/down config */ +#define SUNXI_GPIO_PULL_DISABLE 0 +#define SUNXI_GPIO_PULL_UP 1 +#define SUNXI_GPIO_PULL_DOWN 2 + +int sunxi_gpio_set_cfgpin(u32 pin, u32 val); +int sunxi_gpio_get_cfgpin(u32 pin); +int sunxi_gpio_set_drv(u32 pin, u32 val); +int sunxi_gpio_set_pull(u32 pin, u32 val); + +#endif /* _SUNXI_GPIO_H */ |