a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* This file is part of the coreboot project.
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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; version 2 of the License.
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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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#include <console/console.h>
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#include <console/uart.h>
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#if CONFIG_USE_OPTION_TABLE
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#include <option.h>
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#include "option_table.h"
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#endif
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unsigned int default_baudrate(void)
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{
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#if !defined(__SMM__) && CONFIG_USE_OPTION_TABLE
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static const unsigned baud[8] =
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{ 115200, 57600, 38400, 19200, 9600, 4800, 2400, 1200 };
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unsigned b_index = 0;
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#if defined(__PRE_RAM__)
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b_index = read_option(baud_rate, 0xff);
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#else
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if (get_option(&b_index, "baud_rate") != CB_SUCCESS)
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b_index = 0xff;
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#endif
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if (b_index < 8)
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return baud[b_index];
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#endif
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return CONFIG_TTYS0_BAUD;
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}
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/* Calculate divisor. Do not floor but round to nearest integer. */
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unsigned int uart_baudrate_divisor(unsigned int baudrate,
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unsigned int refclk, unsigned int oversample)
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{
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return (1 + (2 * refclk) / (baudrate * oversample)) / 2;
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}
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