1 /*
2  * clock2xxx.c - OMAP2xxx-specific clock integration code
3  *
4  * Copyright (C) 2005-2008 Texas Instruments, Inc.
5  * Copyright (C) 2004-2010 Nokia Corporation
6  *
7  * Contacts:
8  * Richard Woodruff <r-woodruff2@ti.com>
9  * Paul Walmsley
10  *
11  * Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
12  * Gordon McNutt and RidgeRun, Inc.
13  *
14  * This program is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License version 2 as
16  * published by the Free Software Foundation.
17  */
18 #undef DEBUG
19 
20 #include <linux/kernel.h>
21 #include <linux/errno.h>
22 #include <linux/clk.h>
23 #include <linux/io.h>
24 
25 #include "soc.h"
26 #include "clock.h"
27 #include "clock2xxx.h"
28 #include "cm.h"
29 #include "cm-regbits-24xx.h"
30 
31 struct clk_hw *dclk_hw;
32 /*
33  * Omap24xx specific clock functions
34  */
35 
36 /*
37  * Switch the MPU rate if specified on cmdline.  We cannot do this
38  * early until cmdline is parsed.  XXX This should be removed from the
39  * clock code and handled by the OPP layer code in the near future.
40  */
omap2xxx_clk_arch_init(void)41 static int __init omap2xxx_clk_arch_init(void)
42 {
43 	int ret;
44 
45 	if (!cpu_is_omap24xx())
46 		return 0;
47 
48 	ret = omap2_clk_switch_mpurate_at_boot("virt_prcm_set");
49 	if (!ret)
50 		omap2_clk_print_new_rates("sys_ck", "dpll_ck", "mpu_ck");
51 
52 	return ret;
53 }
54 
55 omap_arch_initcall(omap2xxx_clk_arch_init);
56 
57 
58