forked from len0rd/rockbox
4d3190f416
Cortex-M processors don't have an MMU, but can still have caches that need software management, so on those platforms we don't want to include the MMU related functions. While here, remove an outdated section of a comment referring to deprecated cache maintenance functions which no longer exist. Change-Id: I6f0fe694560bdee25ed7c69a846bf46e3e544cb1
48 lines
1.7 KiB
C
48 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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* $Id$
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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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#include "cpucache-arm.h"
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#define CPUFREQ_DEFAULT 32000000
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#define CPUFREQ_NORMAL 48000000
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#define CPUFREQ_MAX 192000000
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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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/* TC32 is configured to 1MHz in clock_init() */
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#define USEC_TIMER TC32MCNT
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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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