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https://github.com/AsahiLinux/u-boot
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44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
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/*
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* (C) Copyright 2010
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* Matthias Weisser <weisserm@arcor.de>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/hardware.h>
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/*
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* Get the peripheral bus frequency depending on pll pin settings
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*/
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ulong get_bus_freq(ulong dummy)
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{
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struct mb86r0x_crg * crg = (struct mb86r0x_crg *)
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MB86R0x_CRG_BASE;
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uint32_t pllmode;
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pllmode = readl(&crg->crpr) & MB86R0x_CRG_CRPR_PLLMODE;
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if (pllmode == MB86R0x_CRG_CRPR_PLLMODE_X20)
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return 40000000;
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return 41164767;
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}
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