153 lines
4.7 KiB
C
153 lines
4.7 KiB
C
/* $NetBSD: obio_com.c,v 1.3 2015/03/28 15:59:29 jmcneill Exp $ */
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/* based on omap/obio_com.c */
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/*
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* Based on arch/arm/omap/omap_com.c
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*
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* Copyright 2003 Wasabi Systems, Inc.
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* OMAP support Copyright (c) 2007 Microsoft
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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: obio_com.c,v 1.3 2015/03/28 15:59:29 jmcneill Exp $");
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#include "opt_rockchip.h"
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/*#include "opt_com.h"*/
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#include <sys/param.h>
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#include <sys/systm.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 <sys/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/rockchip/rockchip_var.h>
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#include <arm/rockchip/rockchip_reg.h>
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#include "locators.h"
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static int obiouart_match(device_t, cfdata_t, void *);
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static void obiouart_attach(device_t, device_t, void *);
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struct com_obio_softc {
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struct com_softc sc_sc;
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void *sc_ih;
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};
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CFATTACH_DECL_NEW(obiouart, sizeof(struct com_obio_softc),
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obiouart_match, obiouart_attach, NULL, NULL);
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static int
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obiouart_match(device_t parent, cfdata_t cf, void *aux)
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{
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struct obio_attach_args *obio = aux;
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bus_space_handle_t bsh;
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bus_addr_t ioaddr;
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switch (obio->obio_base) {
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case ROCKCHIP_CORE0_BASE:
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KASSERT(obio->obio_offset == ROCKCHIP_UART0_OFFSET ||
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obio->obio_offset == ROCKCHIP_UART1_OFFSET);
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break;
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case ROCKCHIP_CORE1_BASE:
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KASSERT(obio->obio_offset == ROCKCHIP_UART2_OFFSET ||
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obio->obio_offset == ROCKCHIP_UART3_OFFSET);
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break;
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default:
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panic("obiouart must have addr specified in config.");
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}
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ioaddr = obio->obio_base + obio->obio_offset;
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#if 0
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/*
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* XXX this should be ifdefed on a board-dependent switch
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* We don't know what is the irq for com0 on the sdp2430
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*/
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if (obio->obio_intr == OBIOCF_INTR_DEFAULT)
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panic("obiouart must have intr specified in config.");
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#endif
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if (obio->obio_size == OBIOCF_SIZE_DEFAULT)
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obio->obio_size = ROCKCHIP_UART_SIZE;
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if (com_is_console(obio->obio_bst, ioaddr, NULL))
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return 1;
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bus_space_subregion(obio->obio_bst, obio->obio_bsh, obio->obio_size, 0,
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&bsh);
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return comprobe1(obio->obio_bst, bsh);
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}
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static void
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obiouart_attach(device_t parent, device_t self, void *aux)
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{
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struct com_obio_softc *osc = device_private(self);
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struct com_softc *sc = &osc->sc_sc;
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struct obio_attach_args *obio = aux;
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bus_space_tag_t bst;
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bus_space_handle_t bsh = 0;
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bus_addr_t iobase;
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sc->sc_dev = self;
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bst = obio->obio_bst;
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iobase = obio->obio_base + obio->obio_offset;
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sc->sc_frequency = ROCKCHIP_UART_FREQ;
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sc->sc_type = COM_TYPE_NORMAL;
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if (com_is_console(bst, iobase, &bsh) == 0 &&
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bus_space_subregion(bst, obio->obio_bsh, obio->obio_size, 0, &bsh)) {
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panic(": can't map registers\n");
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return;
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}
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COM_INIT_REGS(sc->sc_regs, bst, bsh, iobase);
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com_attach_subr(sc);
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aprint_naive("\n");
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KASSERT(obio->obio_intr != OBIOCF_INTR_DEFAULT);
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osc->sc_ih = intr_establish(obio->obio_intr, IPL_SERIAL, IST_LEVEL,
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comintr, sc);
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if (osc->sc_ih == NULL)
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panic("%s: failed to establish interrup %d",
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device_xname(self), obio->obio_intr);
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}
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