a85780bacc
This patch implements HAVE_ADJUSTABLE_CPU_FREQ, it modifies the following parameters when CPU is unboosted: - s5l8702 voltage is decreased: 1.200V -> 1.050V - CPU frequency is divided by 4: 216MHz -> 54MHz - AHB frequency is divided by 2: 108MHz -> 54MHz Change-Id: I2285b83efb7e1567864ac288f2d4ba55f058f7c5
47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/***************************************************************************
|
|
* __________ __ ___.
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
|
* \/ \/ \/ \/ \/
|
|
* $Id: system-target.h 28791 2010-12-11 09:39:33Z Buschel $
|
|
*
|
|
* Copyright (C) 2007 by Dave Chapman
|
|
*
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
****************************************************************************/
|
|
#ifndef SYSTEM_TARGET_H
|
|
#define SYSTEM_TARGET_H
|
|
|
|
#include "system-arm.h"
|
|
#include "mmu-arm.h"
|
|
|
|
#define CPUFREQ_SLEEP 32768
|
|
#define CPUFREQ_MAX 216000000
|
|
#define CPUFREQ_DEFAULT 54000000
|
|
#define CPUFREQ_NORMAL 54000000
|
|
|
|
#define STORAGE_WANTS_ALIGN
|
|
|
|
#define inl(a) (*(volatile unsigned long *) (a))
|
|
#define outl(a,b) (*(volatile unsigned long *) (b) = (a))
|
|
#define inb(a) (*(volatile unsigned char *) (a))
|
|
#define outb(a,b) (*(volatile unsigned char *) (b) = (a))
|
|
#define inw(a) (*(volatile unsigned short*) (a))
|
|
#define outw(a,b) (*(volatile unsigned short*) (b) = (a))
|
|
|
|
static inline void udelay(unsigned usecs)
|
|
{
|
|
unsigned stop = USEC_TIMER + usecs;
|
|
while (TIME_BEFORE(USEC_TIMER, stop));
|
|
}
|
|
|
|
#endif /* SYSTEM_TARGET_H */
|