u-boot/include/dt-bindings/pinctrl/at91.h
Wenyou Yang 9319a756ff pinctrl: at91: add pinctrl driver
AT91 PIO controller is a combined gpio-controller, pin-mux and
pin-config module. The peripheral's pins are assigned through
per-pin based muxing logic.

Each SoC will have to describe the its limitation and pin
configuration via device tree. This will allow to do not need
to touch the C code when adding new SoC if the IP version is
supported.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-13 14:44:50 -06:00

42 lines
1.2 KiB
C

/*
* This header provides constants for most at91 pinctrl bindings.
*
* Copyright (C) 2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
*
* GPLv2 only
*/
#ifndef __DT_BINDINGS_AT91_PINCTRL_H__
#define __DT_BINDINGS_AT91_PINCTRL_H__
#define AT91_PINCTRL_NONE (0 << 0)
#define AT91_PINCTRL_PULL_UP (1 << 0)
#define AT91_PINCTRL_MULTI_DRIVE (1 << 1)
#define AT91_PINCTRL_DEGLITCH (1 << 2)
#define AT91_PINCTRL_PULL_DOWN (1 << 3)
#define AT91_PINCTRL_DIS_SCHMIT (1 << 4)
#define AT91_PINCTRL_OUTPUT (1 << 7)
#define AT91_PINCTRL_OUTPUT_VAL(x) ((x & 0x1) << 8)
#define AT91_PINCTRL_DEBOUNCE (1 << 16)
#define AT91_PINCTRL_DEBOUNCE_VAL(x) (x << 17)
#define AT91_PINCTRL_PULL_UP_DEGLITCH (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DEGLITCH)
#define AT91_PINCTRL_DRIVE_STRENGTH_DEFAULT (0x0 << 5)
#define AT91_PINCTRL_DRIVE_STRENGTH_LOW (0x1 << 5)
#define AT91_PINCTRL_DRIVE_STRENGTH_MED (0x2 << 5)
#define AT91_PINCTRL_DRIVE_STRENGTH_HI (0x3 << 5)
#define AT91_PIOA 0
#define AT91_PIOB 1
#define AT91_PIOC 2
#define AT91_PIOD 3
#define AT91_PIOE 4
#define AT91_PERIPH_GPIO 0
#define AT91_PERIPH_A 1
#define AT91_PERIPH_B 2
#define AT91_PERIPH_C 3
#define AT91_PERIPH_D 4
#endif /* __DT_BINDINGS_AT91_PINCTRL_H__ */