1178173Simp/*-
2178173Simp * Copyright (c) 2006 Wojciech A. Koszek <wkoszek@FreeBSD.org>
3178173Simp * All rights reserved.
4178173Simp *
5178173Simp * Redistribution and use in source and binary forms, with or without
6178173Simp * modification, are permitted provided that the following conditions
7178173Simp * are met:
8178173Simp * 1. Redistributions of source code must retain the above copyright
9178173Simp *    notice, this list of conditions and the following disclaimer.
10178173Simp * 2. Redistributions in binary form must reproduce the above copyright
11178173Simp *    notice, this list of conditions and the following disclaimer in the
12178173Simp *    documentation and/or other materials provided with the distribution.
13178173Simp *
14178173Simp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15178173Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16178173Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17178173Simp * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18178173Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19178173Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20178173Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21178173Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22178173Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23178173Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24178173Simp * SUCH DAMAGE.
25178173Simp *
26178173Simp * $Id$
27178173Simp */
28178173Simp/*
29178173Simp * Skeleton of this file was based on respective code for ARM
30178173Simp * code written by Olivier Houchard.
31178173Simp */
32178173Simp/*
33178173Simp * XXXMIPS: This file is hacked from arm/... . XXXMIPS here means this file is
34178173Simp * experimental and was written for MIPS32 port.
35178173Simp */
36178173Simp#include "opt_uart.h"
37178173Simp
38178173Simp#include <sys/cdefs.h>
39178173Simp__FBSDID("$FreeBSD$");
40178173Simp
41178173Simp#include <sys/param.h>
42178173Simp#include <sys/systm.h>
43178173Simp#include <sys/bus.h>
44178173Simp#include <sys/cons.h>
45178173Simp
46178173Simp#include <machine/bus.h>
47178173Simp
48178173Simp#include <dev/uart/uart.h>
49178173Simp#include <dev/uart/uart_cpu.h>
50178173Simp
51178173Simpextern struct uart_class uart_rc32434_uart_class;
52178173Simpbus_space_tag_t uart_bus_space_io;
53178173Simpbus_space_tag_t uart_bus_space_mem;
54178173Simp
55178173Simpint
56178173Simpuart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
57178173Simp{
58178173Simp
59178173Simp	return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
60178173Simp}
61178173Simp
62178173Simpint
63178173Simpuart_cpu_getdev(int devtype, struct uart_devinfo *di)
64178173Simp{
65178173Simp	uint32_t maddr;
66178173Simp
67178173Simp	if (resource_int_value("uart", 0, "maddr", &maddr) != 0 ||
68178173Simp	    maddr == 0)
69178173Simp		return (ENXIO);
70178173Simp
71178173Simp	/* Got it. Fill in the instance and return it. */
72178173Simp	di->ops = uart_getops(&uart_ns8250_class);
73178173Simp	di->bas.chan = 0;
74202027Simp	di->bas.bst = mips_bus_space_generic;
75178173Simp	di->bas.regshft = 2;
76178173Simp	di->bas.rclk = 330000000UL/2; /* IPbus clock */
77178173Simp	di->baudrate = 115200;
78178173Simp	di->databits = 8;
79178173Simp	di->stopbits = 1;
80178173Simp	di->parity = UART_PARITY_NONE;
81178173Simp	uart_bus_space_io = 0;
82202027Simp	uart_bus_space_mem = mips_bus_space_generic;
83178173Simp	di->bas.bsh = MIPS_PHYS_TO_KSEG1(maddr);
84178173Simp	return (0);
85178173Simp}
86