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Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/linville...
[linux-2.6.git] / 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
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
20 #include <plat/board.h>
21 #include <mach/gpio.h>
22
23
24 /* Many OMAP development platforms reuse the same "debug board"; these
25  * platforms include H2, H3, H4, and Perseus2.
26  */
27
28 static struct smc91x_platdata smc91x_info = {
29         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
30         .leda   = RPC_LED_100_10,
31         .ledb   = RPC_LED_TX_RX,
32 };
33
34 static struct resource smc91x_resources[] = {
35         [0] = {
36                 .flags  = IORESOURCE_MEM,
37         },
38         [1] = {
39                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
40         },
41 };
42
43 static struct platform_device smc91x_device = {
44         .name           = "smc91x",
45         .id             = -1,
46         .dev            = {
47                 .platform_data = &smc91x_info,
48         },
49         .num_resources  = ARRAY_SIZE(smc91x_resources),
50         .resource       = smc91x_resources,
51 };
52
53 static struct resource led_resources[] = {
54         [0] = {
55                 .flags  = IORESOURCE_MEM,
56         },
57 };
58
59 static struct platform_device led_device = {
60         .name           = "omap_dbg_led",
61         .id             = -1,
62         .num_resources  = ARRAY_SIZE(led_resources),
63         .resource       = led_resources,
64 };
65
66 static struct platform_device *debug_devices[] __initdata = {
67         &smc91x_device,
68         &led_device,
69         /* ps2 kbd + mouse ports */
70         /* 4 extra uarts */
71         /* 6 input dip switches */
72         /* 8 output pins */
73 };
74
75 int __init debug_card_init(u32 addr, unsigned gpio)
76 {
77         int     status;
78
79         smc91x_resources[0].start = addr + 0x300;
80         smc91x_resources[0].end   = addr + 0x30f;
81
82         smc91x_resources[1].start = gpio_to_irq(gpio);
83         smc91x_resources[1].end   = gpio_to_irq(gpio);
84
85         status = gpio_request(gpio, "SMC91x irq");
86         if (status < 0) {
87                 printk(KERN_ERR "GPIO%d unavailable for smc91x IRQ\n", gpio);
88                 return status;
89         }
90         gpio_direction_input(gpio);
91
92         led_resources[0].start = addr;
93         led_resources[0].end   = addr + SZ_4K - 1;
94
95         return platform_add_devices(debug_devices, ARRAY_SIZE(debug_devices));
96 }