92 lines
2 KiB
C
92 lines
2 KiB
C
|
/*
|
||
|
|
* Copyright 2012 Freescale Semiconductor, Inc.
|
||
|
|
*
|
||
|
|
* The code contained herein is licensed under the GNU General Public
|
||
|
|
* License. You may obtain a copy of the GNU General Public License
|
||
|
|
* Version 2 or later at the following locations:
|
||
|
|
*
|
||
|
|
* http://www.opensource.org/licenses/gpl-license.html
|
||
|
|
* http://www.gnu.org/copyleft/gpl.html
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __PINCTRL_MXS_H
|
||
|
|
#define __PINCTRL_MXS_H
|
||
|
|
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
#include <linux/pinctrl/pinctrl.h>
|
||
|
|
|
||
|
|
#define SET 0x4
|
||
|
|
#define CLR 0x8
|
||
|
|
#define TOG 0xc
|
||
|
|
|
||
|
|
#define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
|
||
|
|
#define PINID(bank, pin) ((bank) * 32 + (pin))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* pinmux-id bit field definitions
|
||
|
|
*
|
||
|
|
* bank: 15..12 (4)
|
||
|
|
* pin: 11..4 (8)
|
||
|
|
* muxsel: 3..0 (4)
|
||
|
|
*/
|
||
|
|
#define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff)
|
||
|
|
#define MUXID_TO_MUXSEL(m) ((m) & 0xf)
|
||
|
|
|
||
|
|
#define PINID_TO_BANK(p) ((p) >> 5)
|
||
|
|
#define PINID_TO_PIN(p) ((p) % 32)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* pin config bit field definitions
|
||
|
|
*
|
||
|
|
* pull-up: 6..5 (2)
|
||
|
|
* voltage: 4..3 (2)
|
||
|
|
* mA: 2..0 (3)
|
||
|
|
*
|
||
|
|
* MSB of each field is presence bit for the config.
|
||
|
|
*/
|
||
|
|
#define PULL_PRESENT (1 << 6)
|
||
|
|
#define PULL_SHIFT 5
|
||
|
|
#define VOL_PRESENT (1 << 4)
|
||
|
|
#define VOL_SHIFT 3
|
||
|
|
#define MA_PRESENT (1 << 2)
|
||
|
|
#define MA_SHIFT 0
|
||
|
|
#define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1)
|
||
|
|
#define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1)
|
||
|
|
#define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3)
|
||
|
|
|
||
|
|
struct mxs_function {
|
||
|
|
const char *name;
|
||
|
|
const char **groups;
|
||
|
|
unsigned ngroups;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct mxs_group {
|
||
|
|
const char *name;
|
||
|
|
unsigned int *pins;
|
||
|
|
unsigned npins;
|
||
|
|
u8 *muxsel;
|
||
|
|
u8 config;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct mxs_regs {
|
||
|
|
u16 muxsel;
|
||
|
|
u16 drive;
|
||
|
|
u16 pull;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct mxs_pinctrl_soc_data {
|
||
|
|
const struct mxs_regs *regs;
|
||
|
|
const struct pinctrl_pin_desc *pins;
|
||
|
|
unsigned npins;
|
||
|
|
struct mxs_function *functions;
|
||
|
|
unsigned nfunctions;
|
||
|
|
struct mxs_group *groups;
|
||
|
|
unsigned ngroups;
|
||
|
|
};
|
||
|
|
|
||
|
|
int mxs_pinctrl_probe(struct platform_device *pdev,
|
||
|
|
struct mxs_pinctrl_soc_data *soc);
|
||
|
|
int mxs_pinctrl_remove(struct platform_device *pdev);
|
||
|
|
|
||
|
|
#endif /* __PINCTRL_MXS_H */
|