1/*- 2 * Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com> 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD: releng/11.0/sys/mips/broadcom/uart_bus_chipc.c 302189 2016-06-25 04:33:00Z landonf $"); 30 31#include "opt_uart.h" 32 33#include <sys/param.h> 34#include <sys/systm.h> 35#include <sys/bus.h> 36#include <sys/conf.h> 37#include <sys/kernel.h> 38#include <sys/module.h> 39#include <sys/rman.h> 40 41#include <machine/bus.h> 42#include <machine/resource.h> 43 44#include <dev/uart/uart.h> 45#include <dev/uart/uart_bus.h> 46#include <dev/uart/uart_cpu.h> 47 48#include "uart_if.h" 49#include "bhnd_chipc_if.h" 50 51#include "bcm_socinfo.h" 52 53 54static int 55uart_chipc_probe(device_t dev) 56{ 57 struct uart_softc *sc; 58 struct bcm_socinfo *socinfo; 59 60 sc = device_get_softc(dev); 61 sc->sc_class = &uart_ns8250_class; 62 63 /* TODO: UART rate should be calculated from CPU clock speed 64 * as fetched from bhnd bus */ 65 socinfo = bcm_get_socinfo(); 66 return (uart_bus_probe(dev, 0, socinfo->uartrate, 0, 0)); 67} 68 69static device_method_t uart_chipc_methods[] = { 70 /* Device interface */ 71 DEVMETHOD(device_probe, uart_chipc_probe), 72 DEVMETHOD(device_attach, uart_bus_attach), 73 DEVMETHOD(device_detach, uart_bus_detach), 74 { 0, 0 } 75}; 76 77static driver_t uart_chipc_driver = { 78 uart_driver_name, 79 uart_chipc_methods, 80 sizeof(struct uart_softc), 81}; 82 83DRIVER_MODULE(uart, bhnd_chipc, uart_chipc_driver, uart_devclass, 0, 0); 84