linux-imx

/*

 *  Copyright (C) 2002,2003 Intrinsyc Software

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *

 * History:

 *   31-Jul-2002 : Initial version [FB]

 *   29-Jan-2003 : added PXA255 support [FB]

 *   20-Apr-2003 : ported to v2.5 (Dustin McIntire, Sensoria Corp.)

 *

 * Note:

 *   This driver may change the memory bus clock rate, but will not do any

 *   platform specific access timing changes... for example if you have flash

 *   memory connected to CS0, you will need to register a platform specific

 *   notifier which will adjust the memory access strobes to maintain a

 *   minimum strobe width.

 *

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/sched.h>

#include <linux/init.h>

#include <linux/cpufreq.h>

#include <linux/err.h>

#include <linux/regulator/consumer.h>

#include <linux/io.h>

​

#include <mach/pxa2xx-regs.h>

#include <mach/smemc.h>

​

#ifdef DEBUG

static unsigned int freq_debug;

module_param(freq_debug, uint, 0);

MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0");

#else

#define freq_debug  0

#endif

​

static struct regulator *vcc_core;

​

static unsigned int pxa27x_maxfreq;

module_param(pxa27x_maxfreq, uint, 0);

MODULE_PARM_DESC(pxa27x_maxfreq, "Set the pxa27x maxfreq in MHz"

         "(typically 624=>pxa270, 416=>pxa271, 520=>pxa272)");

​

struct pxa_cpufreq_data {

    struct clk *clk_core;

};