56 lines
1.8 KiB
C
56 lines
1.8 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) 2013 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 __EMI_IMX233_H__
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#define __EMI_IMX233_H__
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#include "cpu.h"
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#include "system.h"
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#include "system-target.h"
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#include "regs/regs-emi.h"
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#include "regs/regs-dram.h"
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#define HW_DRAM_CTLxx(xx) (*(&HW_DRAM_CTL00 + (xx)))
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struct imx233_emi_info_t
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{
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int cas; // 1/2 cycle unit
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int rows;
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int columns;
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int banks;
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int chips;
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int size;
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};
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/**
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* Absolute maximum EMI speed: 151.58 MHz (mDDR), 130.91 MHz (DDR)
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* Intermediate EMI speeds: 130.91 MHz, 120.00 MHz, 64 MHz, 24 MHz
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* Absolute minimum CPU speed: 24 MHz */
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#define IMX233_EMIFREQ_151_MHz 151580
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#define IMX233_EMIFREQ_130_MHz 130910
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#define IMX233_EMIFREQ_120_MHz 120000
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#define IMX233_EMIFREQ_64_MHz 64000
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#define IMX233_EMIFREQ_24_MHz 24000
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void imx233_emi_set_frequency(unsigned long freq);
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struct imx233_emi_info_t imx233_emi_get_info(void);
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#endif /* __EMI_IMX233_H__ */
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