f753b8ead1
This is a rewrite of the clocking section, the resulting system frequencies are the same as the current git version. This pàtch uses fixed FClk and just one register is written to switch all system frequencies, it needs less steps than the current git version to reach the desired frequency, so it is faster and safer. Includes functions to step-up/down over a table of predefined set of frequencies. The major difference is that Vcore is decreased from 1050 to 1000 mV. See clocking-s5l8702.h for more information. Change-Id: I58ac6634e1996adbe1c0c0918a7ce94ad1917d8e
47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id: system-target.h 28791 2010-12-11 09:39:33Z Buschel $
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*
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* Copyright (C) 2007 by Dave Chapman
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef SYSTEM_TARGET_H
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#define SYSTEM_TARGET_H
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#include "system-arm.h"
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#include "mmu-arm.h"
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#define CPUFREQ_SLEEP 32768
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#define CPUFREQ_MAX 216000000
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#define CPUFREQ_DEFAULT 54000000
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#define CPUFREQ_NORMAL 54000000
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#define STORAGE_WANTS_ALIGN
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#define inl(a) (*(volatile unsigned long *) (a))
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#define outl(a,b) (*(volatile unsigned long *) (b) = (a))
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#define inb(a) (*(volatile unsigned char *) (a))
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#define outb(a,b) (*(volatile unsigned char *) (b) = (a))
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#define inw(a) (*(volatile unsigned short*) (a))
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#define outw(a,b) (*(volatile unsigned short*) (b) = (a))
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static inline void udelay(unsigned usecs)
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{
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unsigned stop = USEC_TIMER + usecs;
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while (TIME_BEFORE(USEC_TIMER, stop));
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}
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#endif /* SYSTEM_TARGET_H */
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