mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-03 01:50:25 +00:00
677b53580d
Add a pin controller driver for Meson GXBB adapted from Linux kernel. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
74 lines
1.4 KiB
C
74 lines
1.4 KiB
C
/*
|
|
* (C) Copyright 2016 - Beniamino Galvani <b.galvani@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __PINCTRL_MESON_H__
|
|
#define __PINCTRL_MESON_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
struct meson_pmx_group {
|
|
const char *name;
|
|
const unsigned int *pins;
|
|
unsigned int num_pins;
|
|
bool is_gpio;
|
|
unsigned int reg;
|
|
unsigned int bit;
|
|
};
|
|
|
|
struct meson_pmx_func {
|
|
const char *name;
|
|
const char * const *groups;
|
|
unsigned int num_groups;
|
|
};
|
|
|
|
struct meson_pinctrl_data {
|
|
const char *name;
|
|
struct meson_pmx_group *groups;
|
|
struct meson_pmx_func *funcs;
|
|
unsigned int pin_base;
|
|
unsigned int num_pins;
|
|
unsigned int num_groups;
|
|
unsigned int num_funcs;
|
|
};
|
|
|
|
struct meson_pinctrl {
|
|
struct meson_pinctrl_data *data;
|
|
void __iomem *reg_mux;
|
|
};
|
|
|
|
#define PIN(x, b) (b + x)
|
|
|
|
#define GROUP(grp, r, b) \
|
|
{ \
|
|
.name = #grp, \
|
|
.pins = grp ## _pins, \
|
|
.num_pins = ARRAY_SIZE(grp ## _pins), \
|
|
.reg = r, \
|
|
.bit = b, \
|
|
}
|
|
|
|
#define GPIO_GROUP(gpio, b) \
|
|
{ \
|
|
.name = #gpio, \
|
|
.pins = (const unsigned int[]){ PIN(gpio, b) }, \
|
|
.num_pins = 1, \
|
|
.is_gpio = true, \
|
|
}
|
|
|
|
#define FUNCTION(fn) \
|
|
{ \
|
|
.name = #fn, \
|
|
.groups = fn ## _groups, \
|
|
.num_groups = ARRAY_SIZE(fn ## _groups), \
|
|
}
|
|
|
|
#define MESON_PIN(x, b) PINCTRL_PIN(PIN(x, b), #x)
|
|
|
|
extern const struct pinctrl_ops meson_pinctrl_ops;
|
|
|
|
int meson_pinctrl_probe(struct udevice *dev);
|
|
|
|
#endif /* __PINCTRL_MESON_H__ */
|