1 /*-
2 * Copyright (c) 2005 Olivier Houchard. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25 #include "opt_uart.h"
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/bus.h>
33 #include <sys/conf.h>
34 #include <sys/kernel.h>
35 #include <sys/module.h>
36 #include <machine/bus.h>
37 #include <sys/rman.h>
38 #include <machine/resource.h>
39
40 #include <dev/pci/pcivar.h>
41
42 #include <dev/uart/uart.h>
43 #include <dev/uart/uart_bus.h>
44 #include <dev/uart/uart_cpu.h>
45
46 #include <arm/at91/at91rm92reg.h>
47
48 #include "uart_if.h"
49
50 static int usart_at91rm92_probe(device_t dev);
51
52 extern struct uart_class at91_usart_class;
53
54 static device_method_t usart_at91rm92_methods[] = {
55 /* Device interface */
56 DEVMETHOD(device_probe, usart_at91rm92_probe),
57 DEVMETHOD(device_attach, uart_bus_attach),
58 DEVMETHOD(device_detach, uart_bus_detach),
59 { 0, 0 }
60 };
61
62 static driver_t usart_at91rm92_driver = {
63 uart_driver_name,
64 usart_at91rm92_methods,
65 sizeof(struct uart_softc),
66 };
67
68 extern SLIST_HEAD(uart_devinfo_list, uart_devinfo) uart_sysdevs;
69
70 static int
71 usart_at91rm92_probe(device_t dev)
72 {
73 struct uart_softc *sc;
74
75 sc = device_get_softc(dev);
76 switch (device_get_unit(dev))
77 {
78 case 0:
79 #ifdef SKYEYE_WORKAROUNDS
80 device_set_desc(dev, "USART0");
81 #else
82 device_set_desc(dev, "DBGU");
83 #endif
84 /*
85 * Setting sc_sysdev makes this device a 'system device' and
86 * indirectly makes it the system console.
87 */
88 sc->sc_sysdev = SLIST_FIRST(&uart_sysdevs);
89 bcopy(&sc->sc_sysdev->bas, &sc->sc_bas, sizeof(sc->sc_bas));
90 break;
91 case 1:
92 device_set_desc(dev, "USART0");
93 break;
94 case 2:
95 device_set_desc(dev, "USART1");
96 break;
97 case 3:
98 device_set_desc(dev, "USART2");
99 break;
100 case 4:
101 device_set_desc(dev, "USART3");
102 break;
103 }
104 sc->sc_class = &at91_usart_class;
105 return (uart_bus_probe(dev, 0, 0, 0, device_get_unit(dev)));
106 }
107
108
109 DRIVER_MODULE(uart, atmelarm, usart_at91rm92_driver, uart_devclass, 0, 0);
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