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[~andy/linux] / arch / arm / plat-omap / debug-devices.c
1 /*
2  * linux/arch/arm/plat-omap/debug-devices.c
3  *
4  * Copyright (C) 2005 Nokia Corporation
5  * Modified from mach-omap2/board-h4.c
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License version 2 as
9  * published by the Free Software Foundation.
10  */
11 #include <linux/gpio.h>
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/platform_device.h>
15 #include <linux/io.h>
16 #include <linux/smc91x.h>
17
18 #include <mach/hardware.h>
19 #include "../mach-omap2/debug-devices.h"
20
21 /* Many OMAP development platforms reuse the same "debug board"; these
22  * platforms include H2, H3, H4, and Perseus2.
23  */
24
25 static struct smc91x_platdata smc91x_info = {
26         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
27         .leda   = RPC_LED_100_10,
28         .ledb   = RPC_LED_TX_RX,
29 };
30
31 static struct resource smc91x_resources[] = {
32         [0] = {
33                 .flags  = IORESOURCE_MEM,
34         },
35         [1] = {
36                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
37         },
38 };
39
40 static struct platform_device smc91x_device = {
41         .name           = "smc91x",
42         .id             = -1,
43         .dev            = {
44                 .platform_data = &smc91x_info,
45         },
46         .num_resources  = ARRAY_SIZE(smc91x_resources),
47         .resource       = smc91x_resources,
48 };
49
50 static struct resource led_resources[] = {
51         [0] = {
52                 .flags  = IORESOURCE_MEM,
53         },
54 };
55
56 static struct platform_device led_device = {
57         .name           = "omap_dbg_led",
58         .id             = -1,
59         .num_resources  = ARRAY_SIZE(led_resources),
60         .resource       = led_resources,
61 };
62
63 static struct platform_device *debug_devices[] __initdata = {
64         &smc91x_device,
65         &led_device,
66         /* ps2 kbd + mouse ports */
67         /* 4 extra uarts */
68         /* 6 input dip switches */
69         /* 8 output pins */
70 };
71
72 int __init debug_card_init(u32 addr, unsigned gpio)
73 {
74         int     status;
75
76         smc91x_resources[0].start = addr + 0x300;
77         smc91x_resources[0].end   = addr + 0x30f;
78
79         smc91x_resources[1].start = gpio_to_irq(gpio);
80         smc91x_resources[1].end   = gpio_to_irq(gpio);
81
82         status = gpio_request(gpio, "SMC91x irq");
83         if (status < 0) {
84                 printk(KERN_ERR "GPIO%d unavailable for smc91x IRQ\n", gpio);
85                 return status;
86         }
87         gpio_direction_input(gpio);
88
89         led_resources[0].start = addr;
90         led_resources[0].end   = addr + SZ_4K - 1;
91
92         return platform_add_devices(debug_devices, ARRAY_SIZE(debug_devices));
93 }