blob: 12500097378dcd64fd90c784aaa2c46977607522 [file] [log] [blame]
* clock2xxx.c - OMAP2xxx-specific clock integration code
* Copyright (C) 2005-2008 Texas Instruments, Inc.
* Copyright (C) 2004-2010 Nokia Corporation
* Contacts:
* Richard Woodruff <>
* Paul Walmsley
* Based on earlier work by Tuukka Tikkanen, Tony Lindgren,
* Gordon McNutt and RidgeRun, Inc.
* 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.
#undef DEBUG
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <plat/cpu.h>
#include <plat/clock.h>
#include "clock.h"
#include "clock2xxx.h"
#include "cm.h"
#include "cm-regbits-24xx.h"
struct clk *vclk, *sclk, *dclk;
* Omap24xx specific clock functions
* Set clocks for bypass mode for reboot to work.
void omap2xxx_clk_prepare_for_reboot(void)
u32 rate;
if (vclk == NULL || sclk == NULL)
rate = clk_get_rate(sclk);
clk_set_rate(vclk, rate);
* Switch the MPU rate if specified on cmdline. We cannot do this
* early until cmdline is parsed. XXX This should be removed from the
* clock code and handled by the OPP layer code in the near future.
static int __init omap2xxx_clk_arch_init(void)
int ret;
if (!cpu_is_omap24xx())
return 0;
ret = omap2_clk_switch_mpurate_at_boot("virt_prcm_set");
if (!ret)
omap2_clk_print_new_rates("sys_ck", "dpll_ck", "mpu_ck");
return ret;