mirror of https://gitee.com/openkylin/linux.git
173 lines
4.3 KiB
C
173 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* IMX pinmux core definitions
|
|
*
|
|
* Copyright (C) 2012 Freescale Semiconductor, Inc.
|
|
* Copyright (C) 2012 Linaro Ltd.
|
|
*
|
|
* Author: Dong Aisheng <dong.aisheng@linaro.org>
|
|
*/
|
|
|
|
#ifndef __DRIVERS_PINCTRL_IMX_H
|
|
#define __DRIVERS_PINCTRL_IMX_H
|
|
|
|
#include <linux/pinctrl/pinconf-generic.h>
|
|
#include <linux/pinctrl/pinmux.h>
|
|
|
|
struct platform_device;
|
|
|
|
extern struct pinmux_ops imx_pmx_ops;
|
|
extern const struct dev_pm_ops imx_pinctrl_pm_ops;
|
|
|
|
/**
|
|
* struct imx_pin_mmio - MMIO pin configurations
|
|
* @mux_mode: the mux mode for this pin.
|
|
* @input_reg: the select input register offset for this pin if any
|
|
* 0 if no select input setting needed.
|
|
* @input_val: the select input value for this pin.
|
|
* @configs: the config for this pin.
|
|
*/
|
|
struct imx_pin_mmio {
|
|
unsigned int mux_mode;
|
|
u16 input_reg;
|
|
unsigned int input_val;
|
|
unsigned long config;
|
|
};
|
|
|
|
/**
|
|
* struct imx_pin_scu - SCU pin configurations
|
|
* @mux: the mux mode for this pin.
|
|
* @configs: the config for this pin.
|
|
*/
|
|
struct imx_pin_scu {
|
|
unsigned int mux_mode;
|
|
unsigned long config;
|
|
};
|
|
|
|
/**
|
|
* struct imx_pin - describes a single i.MX pin
|
|
* @pin: the pin_id of this pin
|
|
* @conf: config type of this pin, either mmio or scu
|
|
*/
|
|
struct imx_pin {
|
|
unsigned int pin;
|
|
union {
|
|
struct imx_pin_mmio mmio;
|
|
struct imx_pin_scu scu;
|
|
} conf;
|
|
};
|
|
|
|
/**
|
|
* struct imx_pin_reg - describe a pin reg map
|
|
* @mux_reg: mux register offset
|
|
* @conf_reg: config register offset
|
|
*/
|
|
struct imx_pin_reg {
|
|
s16 mux_reg;
|
|
s16 conf_reg;
|
|
};
|
|
|
|
/* decode a generic config into raw register value */
|
|
struct imx_cfg_params_decode {
|
|
enum pin_config_param param;
|
|
u32 mask;
|
|
u8 shift;
|
|
bool invert;
|
|
};
|
|
|
|
struct imx_pinctrl_soc_info {
|
|
const struct pinctrl_pin_desc *pins;
|
|
unsigned int npins;
|
|
unsigned int flags;
|
|
const char *gpr_compatible;
|
|
|
|
/* MUX_MODE shift and mask in case SHARE_MUX_CONF_REG */
|
|
unsigned int mux_mask;
|
|
u8 mux_shift;
|
|
|
|
/* generic pinconf */
|
|
bool generic_pinconf;
|
|
const struct pinconf_generic_params *custom_params;
|
|
unsigned int num_custom_params;
|
|
const struct imx_cfg_params_decode *decodes;
|
|
unsigned int num_decodes;
|
|
void (*fixup)(unsigned long *configs, unsigned int num_configs,
|
|
u32 *raw_config);
|
|
|
|
int (*gpio_set_direction)(struct pinctrl_dev *pctldev,
|
|
struct pinctrl_gpio_range *range,
|
|
unsigned offset,
|
|
bool input);
|
|
};
|
|
|
|
/**
|
|
* @dev: a pointer back to containing device
|
|
* @base: the offset to the controller in virtual memory
|
|
*/
|
|
struct imx_pinctrl {
|
|
struct device *dev;
|
|
struct pinctrl_dev *pctl;
|
|
void __iomem *base;
|
|
void __iomem *input_sel_base;
|
|
const struct imx_pinctrl_soc_info *info;
|
|
struct imx_pin_reg *pin_regs;
|
|
unsigned int group_index;
|
|
struct mutex mutex;
|
|
};
|
|
|
|
#define IMX_CFG_PARAMS_DECODE(p, m, o) \
|
|
{ .param = p, .mask = m, .shift = o, .invert = false, }
|
|
|
|
#define IMX_CFG_PARAMS_DECODE_INVERT(p, m, o) \
|
|
{ .param = p, .mask = m, .shift = o, .invert = true, }
|
|
|
|
#define SHARE_MUX_CONF_REG BIT(0)
|
|
#define ZERO_OFFSET_VALID BIT(1)
|
|
#define IMX_USE_SCU BIT(2)
|
|
|
|
#define NO_MUX 0x0
|
|
#define NO_PAD 0x0
|
|
|
|
#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
|
|
|
|
#define PAD_CTL_MASK(len) ((1 << len) - 1)
|
|
#define IMX_MUX_MASK 0x7
|
|
#define IOMUXC_CONFIG_SION (0x1 << 4)
|
|
|
|
int imx_pinctrl_probe(struct platform_device *pdev,
|
|
const struct imx_pinctrl_soc_info *info);
|
|
|
|
#ifdef CONFIG_PINCTRL_IMX_SCU
|
|
#define BM_PAD_CTL_GP_ENABLE BIT(30)
|
|
#define BM_PAD_CTL_IFMUX_ENABLE BIT(31)
|
|
#define BP_PAD_CTL_IFMUX 27
|
|
|
|
int imx_pinctrl_sc_ipc_init(struct platform_device *pdev);
|
|
int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
|
|
unsigned long *config);
|
|
int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
|
|
unsigned long *configs, unsigned num_configs);
|
|
void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
|
|
unsigned int *pin_id, struct imx_pin *pin,
|
|
const __be32 **list_p);
|
|
#else
|
|
static inline int imx_pinconf_get_scu(struct pinctrl_dev *pctldev,
|
|
unsigned pin_id, unsigned long *config)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int imx_pinconf_set_scu(struct pinctrl_dev *pctldev,
|
|
unsigned pin_id, unsigned long *configs,
|
|
unsigned num_configs)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
|
|
unsigned int *pin_id,
|
|
struct imx_pin *pin,
|
|
const __be32 **list_p)
|
|
{
|
|
}
|
|
#endif
|
|
#endif /* __DRIVERS_PINCTRL_IMX_H */
|