ARM: 5830/1: ARM: U8500 clock framework

/*

 *  Copyright (C) 2009 ST-Ericsson

 * 	heavily based on realview platform

 *

 * 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/module.h>

#include <linux/kernel.h>

#include <linux/list.h>

#include <linux/errno.h>

#include <linux/err.h>

#include <linux/clk.h>

#include <linux/mutex.h>

#include <asm/clkdev.h>

/* currently the clk structure

 * just supports rate. This would

 * be extended as and when new devices are

 * added - TODO

 */

struct clk {

	unsigned long		rate;

};

int clk_enable(struct clk *clk)

{

	return 0;

}

EXPORT_SYMBOL(clk_enable);

void clk_disable(struct clk *clk)

{

}

EXPORT_SYMBOL(clk_disable);

unsigned long clk_get_rate(struct clk *clk)

{

	return clk->rate;

}

EXPORT_SYMBOL(clk_get_rate);

long clk_round_rate(struct clk *clk, unsigned long rate)

{

	/*TODO*/

	return rate;

}

EXPORT_SYMBOL(clk_round_rate);

int clk_set_rate(struct clk *clk, unsigned long rate)

{

	clk->rate = rate;

	return 0;

}

EXPORT_SYMBOL(clk_set_rate);

/* ssp clock */

static struct clk ssp_clk = {

	.rate = 48000000,

};

/* fixed clock */

static struct clk f38_clk = {

	.rate = 38400000,

};

static struct clk_lookup lookups[] = {

	{

		/* UART0 */

		.dev_id		= "uart0",

		.clk		= &f38_clk,

	}, {	/* UART1 */

		.dev_id		= "uart1",

		.clk		= &f38_clk,

	}, {	/* UART2 */

		.dev_id		= "uart2",

		.clk		= &f38_clk,

	}, {	/* SSP */

		.dev_id		= "pl022",

		.clk		= &ssp_clk,

	}

};

static int __init clk_init(void)

{

	int i;

	/* register the clock lookups */

	for (i = 0; i < ARRAY_SIZE(lookups); i++)

		clkdev_add(&lookups[i]);

	return 0;

}

arch_initcall(clk_init);

#ifndef __ASM_MACH_CLKDEV_H

#define __ASM_MACH_CLKDEV_H

#define __clk_get(clk) ({ 1; })

#define __clk_put(clk) do { } while (0)

#endif