uart_cpu_xlp.c revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright 2003-2011 Netlogic Microsystems (Netlogic). All rights
5 * reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
9 * met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in
15 *    the documentation and/or other materials provided with the
16 *    distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY Netlogic Microsystems ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * NETLOGIC_BSD */
31
32/*
33 * Skeleton of this file was based on respective code for ARM
34 * code written by Olivier Houchard.
35 */
36/*
37 * XLRMIPS: This file is hacked from arm/...
38 */
39#include "opt_platform.h"
40
41#ifndef	FDT			/* use FDT uart when fdt is enable */
42#include "opt_uart.h"
43
44#include <sys/cdefs.h>
45__FBSDID("$FreeBSD: stable/11/sys/mips/nlm/uart_cpu_xlp.c 330897 2018-03-14 03:19:51Z eadler $");
46
47#include <sys/param.h>
48#include <sys/systm.h>
49#include <sys/bus.h>
50#include <sys/cons.h>
51#include <sys/kdb.h>
52#include <sys/kernel.h>
53#include <sys/lock.h>
54#include <sys/mutex.h>
55
56#include <machine/bus.h>
57
58#include <dev/uart/uart.h>
59#include <dev/uart/uart_cpu.h>
60
61#include <mips/nlm/hal/haldefs.h>
62#include <mips/nlm/hal/iomap.h>
63#include <mips/nlm/hal/mips-extns.h>
64#include <mips/nlm/hal/uart.h>
65
66#include <mips/nlm/board.h>
67
68bus_space_tag_t uart_bus_space_io;
69bus_space_tag_t uart_bus_space_mem;
70
71int
72uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
73{
74	return (b1->bsh == b2->bsh && b1->bst == b2->bst);
75}
76
77int
78uart_cpu_getdev(int devtype, struct uart_devinfo *di)
79{
80	di->ops = uart_getops(&uart_ns8250_class);
81	di->bas.chan = 0;
82	di->bas.bst = rmi_uart_bus_space;
83	di->bas.bsh = nlm_get_uart_regbase(0, BOARD_CONSOLE_UART);
84
85	di->bas.regshft = 2;
86	/* divisor = rclk / (baudrate * 16); */
87	di->bas.rclk = XLP_IO_CLK;
88	di->baudrate = BOARD_CONSOLE_SPEED;
89	di->databits = 8;
90	di->stopbits = 1;
91	di->parity = UART_PARITY_NONE;
92
93	uart_bus_space_io = NULL;
94	uart_bus_space_mem = rmi_uart_bus_space;
95	return (0);
96}
97#endif
98