2013-10-25 09:08:21 +01:00
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/*
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2014-01-14 18:17:09 +00:00
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* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
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2013-10-25 09:08:21 +01:00
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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2014-04-09 13:14:54 +01:00
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#include <assert.h>
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2013-10-25 09:08:21 +01:00
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#include <platform.h>
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#include <pl011.h>
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2014-03-12 14:52:51 +00:00
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void pl011_setbaudrate(unsigned long base_addr, unsigned int baudrate)
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2013-10-25 09:08:21 +01:00
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{
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unsigned int divisor;
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2014-03-12 14:52:51 +00:00
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assert(baudrate);
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divisor = (PL011_CLK_IN_HZ * 4) / baudrate;
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pl011_write_ibrd(base_addr, divisor >> 6);
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pl011_write_fbrd(base_addr, divisor & 0x3F);
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2013-10-25 09:08:21 +01:00
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}
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