uart_cpu_alchemy.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org> 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 * $Id$ 29 */ 30/* 31 * Skeleton of this file was based on respective code for ARM 32 * code written by Olivier Houchard. 33 */ 34 35#include "opt_uart.h" 36 37#include <sys/cdefs.h> 38__FBSDID("$FreeBSD: stable/11/sys/mips/alchemy/uart_cpu_alchemy.c 330897 2018-03-14 03:19:51Z eadler $"); 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/bus.h> 43#include <sys/cons.h> 44 45#include <machine/bus.h> 46 47#include <dev/uart/uart.h> 48#include <dev/uart/uart_cpu.h> 49 50#include <mips/alchemy/aureg.h> 51 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 66 di->ops = uart_getops(&uart_ns8250_class); 67 di->bas.chan = 0; 68 di->bas.bst = mips_bus_space_generic; 69 di->bas.regshft = 0; 70 di->bas.rclk = 0; 71 di->baudrate = 115200; 72 di->databits = 8; 73 di->stopbits = 1; 74 di->parity = UART_PARITY_NONE; 75 76 uart_bus_space_io = 0; 77 uart_bus_space_mem = mips_bus_space_generic; 78 di->bas.bsh = MIPS_PHYS_TO_KSEG1(UART0_BASE); 79 80 return (0); 81} 82