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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 While here, remove an outdated section of a comment referring to deprecated cache maintenance functions which no longer exist.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
96 lines
3 KiB
C
96 lines
3 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) 2011 by Amaury Pouly
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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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#include "panic.h"
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#include "clkctrl-imx233.h"
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#include "icoll-imx233.h"
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#include "clock-target.h" /* CPUFREQ_* are defined here */
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/**
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* Absolute maximum CPU speed: 454.74 MHz (STMP3780), 320.00 MHz (STMP3700)
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* Intermediate CPU speeds: 261.82 MHz, 64 MHz
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* Absolute minimum CPU speed: 24 MHz */
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#define IMX233_CPUFREQ_454_MHz 454740000
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#define IMX233_CPUFREQ_320_MHz 320000000
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#define IMX233_CPUFREQ_261_MHz 261820000
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#define IMX233_CPUFREQ_200_MHz 200000000
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#define IMX233_CPUFREQ_64_MHz 64000000
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#define IMX233_CPUFREQ_24_MHz 24000000
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#define CPUFREQ_DEFAULT IMX233_CPUFREQ_64_MHz
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#define CPUFREQ_NORMAL IMX233_CPUFREQ_64_MHz
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#if IMX233_SUBTARGET >= 3780
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#define CPUFREQ_MAX IMX233_CPUFREQ_454_MHz
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#elif IMX233_SUBTARGET >= 3700
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#define CPUFREQ_MAX IMX233_CPUFREQ_320_MHz
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#else
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#define CPUFREQ_MAX IMX233_CPUFREQ_200_MHz
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#endif
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#define CPUFREQ_SLEEP IMX233_CPUFREQ_64_MHz
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void system_prepare_fw_start(void);
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void imx233_system_prepare_shutdown(void);
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void udelay(unsigned us);
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bool imx233_us_elapsed(uint32_t ref, unsigned us_delay);
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void imx233_reset_block(volatile uint32_t *block_reg);
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void imx233_enable_usb_controller(bool enable);
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void imx233_enable_usb_phy(bool enable);
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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#define CPU_BOOST_LOCK_DEFINED
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static inline bool cpu_boost_lock(void)
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{
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bool set_cpu_frequency__lock(void);
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return set_cpu_frequency__lock();
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}
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static inline void cpu_boost_unlock(void)
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{
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void set_cpu_frequency__unlock(void);
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set_cpu_frequency__unlock();
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}
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#endif /* HAVE_ADJUSTABLE_CPU_FREQ */
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// NOTE: this is available even if HAVE_ADJUSTABLE_CPU_FREQ is undef
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void imx233_set_cpu_frequency(long frequency);
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void udelay(unsigned usecs);
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static inline void mdelay(unsigned msecs)
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{
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udelay(1000 * msecs);
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}
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void usb_insert_int(void);
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void usb_remove_int(void);
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bool dbg_hw_target_info(void);
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/* for watchdog */
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void imx233_keep_alive(void);
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#endif /* SYSTEM_TARGET_H */
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