clock.h

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/*
 *  linux/arch/arm/mach-mmp/clock.h
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 */

#include <linux/clkdev.h>

struct clkops {
    void            (*enable)(struct clk *);
    void            (*disable)(struct clk *);
    unsigned long       (*getrate)(struct clk *);
    int         (*setrate)(struct clk *, unsigned long);
};

struct clk {
    const struct clkops *ops;

    void __iomem    *clk_rst;   /* clock reset control register */
    int     fnclksel;   /* functional clock select (APBC) */
    uint32_t    enable_val; /* value for clock enable (APMU) */
    unsigned long   rate;
    int     enabled;
};

extern struct clkops apbc_clk_ops;
extern struct clkops apmu_clk_ops;

#define APBC_CLK(_name, _reg, _fnclksel, _rate)         \
struct clk clk_##_name = {                  \
        .clk_rst    = APBC_##_reg,          \
        .fnclksel   = _fnclksel,            \
        .rate       = _rate,            \
        .ops        = &apbc_clk_ops,        \
}

#define APBC_CLK_OPS(_name, _reg, _fnclksel, _rate, _ops)   \
struct clk clk_##_name = {                  \
        .clk_rst    = APBC_##_reg,          \
        .fnclksel   = _fnclksel,            \
        .rate       = _rate,            \
        .ops        = _ops,             \
}

#define APMU_CLK(_name, _reg, _eval, _rate)         \
struct clk clk_##_name = {                  \
        .clk_rst    = APMU_##_reg,          \
        .enable_val = _eval,            \
        .rate       = _rate,            \
        .ops        = &apmu_clk_ops,        \
}

#define APMU_CLK_OPS(_name, _reg, _eval, _rate, _ops)       \
struct clk clk_##_name = {                  \
        .clk_rst    = APMU_##_reg,          \
        .enable_val = _eval,            \
        .rate       = _rate,            \
        .ops        = _ops,             \
}

#define INIT_CLKREG(_clk, _devname, _conname)           \
    {                           \
        .clk        = _clk,             \
        .dev_id     = _devname,         \
        .con_id     = _conname,         \
    }

extern struct clk clk_pxa168_gpio;
extern struct clk clk_pxa168_timers;