1// SPDX-License-Identifier: GPL-2.0
2/*
3 * arch/sh/kernel/cpu/clock.c - SuperH clock framework
4 *
5 *  Copyright (C) 2005 - 2009  Paul Mundt
6 *
7 * This clock framework is derived from the OMAP version by:
8 *
9 *	Copyright (C) 2004 - 2008 Nokia Corporation
10 *	Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
11 *
12 *  Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
13 */
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/clk.h>
17#include <asm/clock.h>
18#include <asm/machvec.h>
19
20int __init clk_init(void)
21{
22	int ret;
23
24#ifndef CONFIG_COMMON_CLK
25	ret = arch_clk_init();
26	if (unlikely(ret)) {
27		pr_err("%s: CPU clock registration failed.\n", __func__);
28		return ret;
29	}
30#endif
31
32	if (sh_mv.mv_clk_init) {
33		ret = sh_mv.mv_clk_init();
34		if (unlikely(ret)) {
35			pr_err("%s: machvec clock initialization failed.\n",
36			       __func__);
37			return ret;
38		}
39	}
40
41#ifndef CONFIG_COMMON_CLK
42	/* Kick the child clocks.. */
43	recalculate_root_clocks();
44
45	/* Enable the necessary init clocks */
46	clk_enable_init_clocks();
47#endif
48
49	return ret;
50}
51
52
53