eac1ca22bd
NOTE: this commit does not introduce any change, ideally even the binary should
be almost the same. I checked the disassembly by hand and there are only a few
differences here and there, mostly the compiler decides to compile very close
expressions slightly differently. I tried to run the new code on several targets
to make sure and saw no difference.
The major syntax changes of the new headers are as follows:
- BF_{WR,SET,CLR} are now superpowerful and allows to set several fileds at once:
BF_WR(reg, field1(value1), field2(value2), ...)
- BF_CS (use like BF_WR) does a write to reg_CLR and then reg_SET instead of RMW
- there is no more need for macros like BF_{WR_,SET,CLR}_V, since one can simply
BF_WR with field_V(name)
- the old BF_SETV macro has no trivial equivalent and is replaced with its
its equivalent for BF_WR(reg_SET, ...)
I also rename the register headers: "regs/regs-x.h" -> "regs/x.h" to avoid the
redundant "regs".
Final note: the registers were generated using the following command:
./headergen_v2 -g imx -o ../../firmware/target/arm/imx233/regs/ desc/regs-stmp3{600,700,780}.xml
Change-Id: I7485e8b4315a0929a8edb63e7fa1edcaa54b1edc
49 lines
1.6 KiB
C
49 lines
1.6 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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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_64_MHz 64000
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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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