uart_bus_maltausart.c revision 285830
1/*- 2 * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * $Id$ 25 */ 26/* 27 * Skeleton of this file was based on respective code for ARM 28 * code written by Olivier Houchard. 29 */ 30 31#include "opt_uart.h" 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: releng/10.2/sys/mips/malta/uart_bus_maltausart.c 202175 2010-01-12 21:36:08Z imp $"); 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/bus.h> 39#include <sys/conf.h> 40#include <sys/kernel.h> 41#include <sys/module.h> 42#include <machine/bus.h> 43#include <sys/rman.h> 44#include <machine/resource.h> 45 46#include <dev/pci/pcivar.h> 47 48#include <dev/uart/uart.h> 49#include <dev/uart/uart_bus.h> 50#include <dev/uart/uart_cpu.h> 51 52#include <mips/malta/maltareg.h> 53 54#include "uart_if.h" 55 56static int uart_malta_probe(device_t dev); 57 58extern struct uart_class malta_uart_class; 59 60static device_method_t uart_malta_methods[] = { 61 /* Device interface */ 62 DEVMETHOD(device_probe, uart_malta_probe), 63 DEVMETHOD(device_attach, uart_bus_attach), 64 DEVMETHOD(device_detach, uart_bus_detach), 65 { 0, 0 } 66}; 67 68static driver_t uart_malta_driver = { 69 uart_driver_name, 70 uart_malta_methods, 71 sizeof(struct uart_softc), 72}; 73 74extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs; 75static int 76uart_malta_probe(device_t dev) 77{ 78 struct uart_softc *sc; 79 80 sc = device_get_softc(dev); 81 sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs); 82 sc->sc_class = &uart_ns8250_class; 83 bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas)); 84 sc->sc_sysdev->bas.bst = mips_bus_space_generic; 85 sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR); 86 sc->sc_bas.bst = mips_bus_space_generic; 87 sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(MALTA_UART0ADR); 88 return(uart_bus_probe(dev, 0, 0, 0, 0)); 89} 90 91DRIVER_MODULE(uart, obio, uart_malta_driver, uart_devclass, 0, 0); 92