1/*- 2 * Copyright (c) 2009 Oleksandr Tymoshenko 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 */ 27#include "opt_uart.h" 28 29#include <sys/cdefs.h> 30__FBSDID("$FreeBSD$"); 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/bus.h> 35 36#include <machine/bus.h> 37 38#include <dev/uart/uart.h> 39#include <dev/uart/uart_cpu.h> 40 41#include <mips/atheros/ar71xxreg.h> 42#include <mips/atheros/ar71xx_cpudef.h> 43#include <mips/atheros/ar71xx_bus_space_reversed.h> 44 45bus_space_tag_t uart_bus_space_io; 46bus_space_tag_t uart_bus_space_mem; 47 48int 49uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 50{ 51 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 52} 53 54int 55uart_cpu_getdev(int devtype, struct uart_devinfo *di) 56{ 57 uint64_t freq; 58 59 freq = ar71xx_uart_freq(); 60 61 di->ops = uart_getops(&uart_ns8250_class); 62 di->bas.chan = 0; 63 di->bas.bst = ar71xx_bus_space_reversed; 64 di->bas.regshft = 2; 65 di->bas.rclk = freq; 66 di->baudrate = 115200; 67 di->databits = 8; 68 di->stopbits = 1; 69 70 di->parity = UART_PARITY_NONE; 71 72 uart_bus_space_io = NULL; 73 uart_bus_space_mem = ar71xx_bus_space_reversed; 74 di->bas.bsh = MIPS_PHYS_TO_KSEG1(AR71XX_UART_ADDR); 75 return (0); 76} 77