1/*
2 * drivers/clk/at91/sckc.c
3 *
4 *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 */
12
13#include <linux/clk-provider.h>
14#include <linux/clkdev.h>
15#include <linux/of.h>
16#include <linux/of_address.h>
17#include <linux/io.h>
18
19#include "sckc.h"
20
21static const struct of_device_id sckc_clk_ids[] __initconst = {
22	/* Slow clock */
23	{
24		.compatible = "atmel,at91sam9x5-clk-slow-osc",
25		.data = of_at91sam9x5_clk_slow_osc_setup,
26	},
27	{
28		.compatible = "atmel,at91sam9x5-clk-slow-rc-osc",
29		.data = of_at91sam9x5_clk_slow_rc_osc_setup,
30	},
31	{
32		.compatible = "atmel,at91sam9x5-clk-slow",
33		.data = of_at91sam9x5_clk_slow_setup,
34	},
35	{ /*sentinel*/ }
36};
37
38static void __init of_at91sam9x5_sckc_setup(struct device_node *np)
39{
40	struct device_node *childnp;
41	void (*clk_setup)(struct device_node *, void __iomem *);
42	const struct of_device_id *clk_id;
43	void __iomem *regbase = of_iomap(np, 0);
44
45	if (!regbase)
46		return;
47
48	for_each_child_of_node(np, childnp) {
49		clk_id = of_match_node(sckc_clk_ids, childnp);
50		if (!clk_id)
51			continue;
52		clk_setup = clk_id->data;
53		clk_setup(childnp, regbase);
54	}
55}
56CLK_OF_DECLARE(at91sam9x5_clk_sckc, "atmel,at91sam9x5-sckc",
57	       of_at91sam9x5_sckc_setup);
58