70 lines
2 KiB
C
70 lines
2 KiB
C
/*
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* File: include/asm-blackfin/mach-common/clocks.h
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* Based on: include/asm-blackfin/mach-bf537/bf537.h
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* Author: Robin Getz <rgetz@blackfin.uclinux.org>
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*
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* Created: 25Jul07
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* Description: Common Clock definitions for various kernel files
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*
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* Modified:
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* Copyright 2004-2007 Analog Devices Inc.
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*
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* Bugs: Enter bugs at http://blackfin.uclinux.org/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _BFIN_CLOCKS_H
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#define _BFIN_CLOCKS_H
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#ifdef CONFIG_CCLK_DIV_1
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# define CONFIG_CCLK_ACT_DIV CCLK_DIV1
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# define CONFIG_CCLK_DIV 1
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#endif
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#ifdef CONFIG_CCLK_DIV_2
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# define CONFIG_CCLK_ACT_DIV CCLK_DIV2
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# define CONFIG_CCLK_DIV 2
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#endif
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#ifdef CONFIG_CCLK_DIV_4
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# define CONFIG_CCLK_ACT_DIV CCLK_DIV4
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# define CONFIG_CCLK_DIV 4
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#endif
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#ifdef CONFIG_CCLK_DIV_8
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# define CONFIG_CCLK_ACT_DIV CCLK_DIV8
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# define CONFIG_CCLK_DIV 8
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#endif
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#ifndef CONFIG_PLL_BYPASS
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# ifndef CONFIG_CLKIN_HALF
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# define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)
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# else
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# define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)/2)
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# endif
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# define CONFIG_CCLK_HZ (CONFIG_VCO_HZ/CONFIG_CCLK_DIV)
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# define CONFIG_SCLK_HZ (CONFIG_VCO_HZ/CONFIG_SCLK_DIV)
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#else
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# define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ)
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# define CONFIG_CCLK_HZ (CONFIG_CLKIN_HZ)
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# define CONFIG_SCLK_HZ (CONFIG_CLKIN_HZ)
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# define CONFIG_VCO_MULT 0
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#endif
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#endif
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