linux-imx

/*

 * EBI driver for Atmel chips

 * inspired by the fsl weim bus driver

 *

 * Copyright (C) 2013 Jean-Jacques Hiblot <jjhiblot@traphandler.com>

 *

 * This file is licensed under the terms of the GNU General Public

 * License version 2. This program is licensed "as is" without any

 * warranty of any kind, whether express or implied.

 */

​

#include <linux/clk.h>

#include <linux/io.h>

#include <linux/mfd/syscon.h>

#include <linux/mfd/syscon/atmel-matrix.h>

#include <linux/mfd/syscon/atmel-smc.h>

#include <linux/init.h>

#include <linux/of_device.h>

#include <linux/regmap.h>

​

struct atmel_ebi_dev_config {

    int cs;

    struct atmel_smc_cs_conf smcconf;

};

​

struct atmel_ebi;

​

struct atmel_ebi_dev {

    struct list_head node;

    struct atmel_ebi *ebi;

    u32 mode;

    int numcs;

    struct atmel_ebi_dev_config configs[];

};

​

struct atmel_ebi_caps {

    unsigned int available_cs;

    unsigned int ebi_csa_offs;

    void (*get_config)(struct atmel_ebi_dev *ebid,

               struct atmel_ebi_dev_config *conf);

    int (*xlate_config)(struct atmel_ebi_dev *ebid,

                struct device_node *configs_np,

                struct atmel_ebi_dev_config *conf);

    void (*apply_config)(struct atmel_ebi_dev *ebid,

                 struct atmel_ebi_dev_config *conf);

};

​

struct atmel_ebi {

    struct clk *clk;

    struct regmap *matrix;

    struct  {

        struct regmap *regmap;

        struct clk *clk;

        const struct atmel_hsmc_reg_layout *layout;

    } smc;

​

    struct device *dev;

    const struct atmel_ebi_caps *caps;

    struct list_head devs;

};

​

struct atmel_smc_timing_xlate {

    const char *name;