1 /*-
2 * Copyright (C) 2009 Yohanes Nugroho <yohanes@gmail.com>
3 * All rights reserved.
4 *
5 * Developed by Semihalf.
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 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 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 #include <sys/cons.h>
38
39 #include <machine/bus.h>
40
41 #include <dev/uart/uart.h>
42 #include <dev/uart/uart_cpu.h>
43
44 #include <sys/rman.h>
45
46 #include <arm/cavium/cns11xx/econa_reg.h>
47 #include <arm/cavium/cns11xx/econa_var.h>
48
49 bus_space_tag_t uart_bus_space_io;
50 bus_space_tag_t uart_bus_space_mem;
51
52 int
uart_cpu_eqres(struct uart_bas * b1,struct uart_bas * b2)53 uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
54 {
55
56 return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0);
57 }
58
59 int
uart_cpu_getdev(int devtype,struct uart_devinfo * di)60 uart_cpu_getdev(int devtype, struct uart_devinfo *di)
61 {
62 struct uart_class *class = &uart_ns8250_class;
63
64 di->ops = uart_getops(class);
65 di->bas.chan = 0;
66 di->bas.bst = obio_tag;
67
68 if (bus_space_map(di->bas.bst, ECONA_IO_BASE + ECONA_UART_BASE,
69 ECONA_UART_SIZE,
70 0, &di->bas.bsh) != 0) {
71 return (ENXIO);
72 }
73
74 di->baudrate = 0;
75 di->bas.regshft = EC_UART_REGSHIFT;
76 di->bas.rclk = EC_UART_CLOCK ;
77 di->databits = 8;
78 di->stopbits = 1;
79 di->parity = UART_PARITY_NONE;
80 uart_bus_space_mem = obio_tag;
81 uart_bus_space_io = NULL;
82
83 return (0);
84 }
85