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