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 * SUCH DAMAGE. 25 * 26 * $Id$ 27 */ 28/* 29 * Skeleton of this file was based on respective code for ARM 30 * code written by Olivier Houchard. 31 */ 32/* 33 * XXXMIPS: This file is hacked from arm/... . XXXMIPS here means this file is 34 * experimental and was written for MIPS32 port. 35 */ 36#include "opt_uart.h" 37 38#include <sys/cdefs.h> 39__FBSDID("$FreeBSD$"); 40 41#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/bus.h> 44#include <sys/cons.h> 45 46#include <machine/bus.h> 47 48#include <dev/uart/uart.h> 49#include <dev/uart/uart_cpu.h> 50 51extern struct uart_class uart_rc32434_uart_class; 52bus_space_tag_t uart_bus_space_io; 53bus_space_tag_t uart_bus_space_mem; 54 55int 56uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 57{ 58 59 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 60} 61 62int 63uart_cpu_getdev(int devtype, struct uart_devinfo *di) 64{ 65 uint32_t maddr; 66 67 if (resource_int_value("uart", 0, "maddr", &maddr) != 0 || 68 maddr == 0) 69 return (ENXIO); 70 71 /* Got it. Fill in the instance and return it. */ 72 di->ops = uart_getops(&uart_ns8250_class); 73 di->bas.chan = 0; 74 di->bas.bst = mips_bus_space_generic; 75 di->bas.regshft = 2; 76 di->bas.rclk = 330000000UL/2; /* IPbus clock */ 77 di->baudrate = 115200; 78 di->databits = 8; 79 di->stopbits = 1; 80 di->parity = UART_PARITY_NONE; 81 uart_bus_space_io = 0; 82 uart_bus_space_mem = mips_bus_space_generic; 83 di->bas.bsh = MIPS_PHYS_TO_KSEG1(maddr); 84 return (0); 85} 86