117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/* $NetBSD: ixp425_com.c,v 1.14 2003/10/08 14:55:04 scw Exp $ */
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/*
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* Copyright 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ixp425_com.c,v 1.14 2003/10/08 14:55:04 scw Exp $");
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#include "opt_com.h"
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#ifndef COM_PXA2X0
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#error "You must use options COM_PXA2X0 to get IXP425 serial port support"
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#endif
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#include <sys/systm.h>
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/termios.h>
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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#include <arm/xscale/ixp425reg.h>
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#include <arm/xscale/ixp425var.h>
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#include <arm/xscale/ixp425_sipvar.h>
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static int ixsipcom_match(struct device *, struct cfdata *, void *);
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static void ixsipcom_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(ixsipcom, sizeof(struct com_softc),
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ixsipcom_match, ixsipcom_attach, NULL, NULL);
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static const int uart_irq[] = {IXP425_INT_UART0, IXP425_INT_UART1};
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static int
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ixsipcom_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct ixpsip_attach_args *sa = aux;
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bus_space_tag_t bt = &ixp425_a4x_bs_tag;
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bus_space_handle_t bh;
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int rv;
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if (strcmp(match->cf_name, "ixsipcom") == 0)
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return 1;
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if (com_is_console(bt, sa->sa_addr, NULL))
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return (1);
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if (bus_space_map(bt, sa->sa_addr, sa->sa_size, 0, &bh))
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return (0);
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/* Make sure the UART is enabled */
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bus_space_write_1(bt, bh, com_ier, IER_EUART);
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rv = comprobe1(bt, bh);
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bus_space_unmap(bt, bh, sa->sa_size);
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return (rv);
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}
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static void
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ixsipcom_attach(struct device *parent, struct device *self, void *aux)
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{
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struct com_softc *sc = (struct com_softc *)self;
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struct ixpsip_attach_args *sa = aux;
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sc->sc_iot = &ixp425_a4x_bs_tag;
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sc->sc_iobase = sa->sa_addr;
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sc->sc_frequency = IXP425_UART_FREQ;
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sc->sc_type = COM_TYPE_PXA2x0;
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if (com_is_console(sc->sc_iot, sc->sc_iobase, &sc->sc_ioh) == 0 &&
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bus_space_map(sc->sc_iot, sa->sa_addr, sa->sa_size, 0,
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&sc->sc_ioh)) {
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printf(": can't map registers\n");
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return;
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}
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com_attach_subr(sc);
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ixp425_intr_establish(uart_irq[sa->sa_index], IPL_SERIAL, comintr, sc);
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}
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