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c3e77fc953
Change-Id: I4a3639c05231eacd016ec3873330f9844befd448 Signed-off-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Reviewed-on: http://review.coreboot.org/8080 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2005 Digital Design Corporation
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <arch/io.h>
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#include <device/pnp.h>
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#include <stdint.h>
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#include "lpc47m10x.h"
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static void pnp_enter_conf_state(pnp_devfn_t dev)
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{
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u16 port = dev >> 8;
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outb(0x55, port);
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}
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static void pnp_exit_conf_state(pnp_devfn_t dev)
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{
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u16 port = dev >> 8;
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outb(0xaa, port);
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}
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/**
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* Configure the base I/O port of the specified serial device and enable the
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* serial device.
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*
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* @param dev High 8 bits = Super I/O port, low 8 bits = logical device number.
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* @param iobase Processor I/O port address to assign to this serial device.
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*/
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void lpc47m10x_enable_serial(pnp_devfn_t dev, u16 iobase)
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{
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pnp_enter_conf_state(dev);
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pnp_set_logical_device(dev);
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pnp_set_enable(dev, 0);
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pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
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pnp_set_enable(dev, 1);
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pnp_exit_conf_state(dev);
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}
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