1/*- 2 * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@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 */ 25#include "opt_uart.h" 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD: stable/11/sys/mips/atheros/uart_bus_ar71xx.c 340145 2018-11-04 23:28:56Z mmacy $"); 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/bus.h> 33#include <sys/conf.h> 34#include <sys/kernel.h> 35#include <sys/module.h> 36 37#include <machine/bus.h> 38 39#include <dev/uart/uart.h> 40#include <dev/uart/uart_cpu.h> 41#include <dev/uart/uart_bus.h> 42 43#include <mips/atheros/ar71xxreg.h> 44#include <mips/atheros/ar71xx_cpudef.h> 45 46#include "uart_if.h" 47 48static int uart_ar71xx_probe(device_t dev); 49extern struct uart_class uart_ar71xx_uart_class; 50 51static device_method_t uart_ar71xx_methods[] = { 52 /* Device interface */ 53 DEVMETHOD(device_probe, uart_ar71xx_probe), 54 DEVMETHOD(device_attach, uart_bus_attach), 55 DEVMETHOD(device_detach, uart_bus_detach), 56 { 0, 0 } 57}; 58 59static driver_t uart_ar71xx_driver = { 60 uart_driver_name, 61 uart_ar71xx_methods, 62 sizeof(struct uart_softc), 63}; 64 65extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs; 66 67static int 68uart_ar71xx_probe(device_t dev) 69{ 70 struct uart_softc *sc; 71 uint64_t freq; 72 73 freq = ar71xx_uart_freq(); 74 75 sc = device_get_softc(dev); 76 sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs); 77 sc->sc_class = &uart_ns8250_class; 78 bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas)); 79 sc->sc_sysdev->bas.regshft = 2; 80 sc->sc_sysdev->bas.bst = mips_bus_space_generic; 81 sc->sc_sysdev->bas.bsh = MIPS_PHYS_TO_KSEG1(AR71XX_UART_ADDR) + 3; 82 sc->sc_bas.regshft = 2; 83 sc->sc_bas.bst = mips_bus_space_generic; 84 sc->sc_bas.bsh = MIPS_PHYS_TO_KSEG1(AR71XX_UART_ADDR) + 3; 85 86 return (uart_bus_probe(dev, 2, 0, freq, 0, 0, 0)); 87} 88 89DRIVER_MODULE(uart, apb, uart_ar71xx_driver, uart_devclass, 0, 0); 90