1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009 Oleksandr Tymoshenko 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29#include "opt_uart.h" 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD$"); 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bus.h> 37 38#include <machine/bus.h> 39 40#include <dev/uart/uart.h> 41#include <dev/uart/uart_cpu.h> 42 43#include <mips/atheros/ar71xxreg.h> 44#include <mips/atheros/ar71xx_cpudef.h> 45#include <mips/atheros/ar71xx_bus_space_reversed.h> 46 47bus_space_tag_t uart_bus_space_io; 48bus_space_tag_t uart_bus_space_mem; 49 50int 51uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) 52{ 53 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); 54} 55 56int 57uart_cpu_getdev(int devtype, struct uart_devinfo *di) 58{ 59 uint64_t freq; 60 61 freq = ar71xx_uart_freq(); 62 63 di->ops = uart_getops(&uart_ns8250_class); 64 di->bas.chan = 0; 65 di->bas.bst = ar71xx_bus_space_reversed; 66 di->bas.regshft = 2; 67 di->bas.rclk = freq; 68 di->baudrate = 115200; 69 di->databits = 8; 70 di->stopbits = 1; 71 72 di->parity = UART_PARITY_NONE; 73 74 uart_bus_space_io = NULL; 75 uart_bus_space_mem = ar71xx_bus_space_reversed; 76 di->bas.bsh = MIPS_PHYS_TO_KSEG1(AR71XX_UART_ADDR); 77 return (0); 78} 79