1 /*
2  * Renesas Technology Europe RSK+ 7203 Support.
3  *
4  * Copyright (C) 2008 - 2010  Paul Mundt
5  *
6  * This file is subject to the terms and conditions of the GNU General Public
7  * License.  See the file "COPYING" in the main directory of this archive
8  * for more details.
9  */
10 #include <linux/init.h>
11 #include <linux/types.h>
12 #include <linux/platform_device.h>
13 #include <linux/interrupt.h>
14 #include <linux/smsc911x.h>
15 #include <linux/input.h>
16 #include <linux/gpio.h>
17 #include <linux/gpio_keys.h>
18 #include <linux/leds.h>
19 #include <asm/machvec.h>
20 #include <asm/io.h>
21 #include <cpu/sh7203.h>
22 
23 static struct smsc911x_platform_config smsc911x_config = {
24 	.phy_interface	= PHY_INTERFACE_MODE_MII,
25 	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
26 	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
27 	.flags		= SMSC911X_USE_32BIT | SMSC911X_SWAP_FIFO,
28 };
29 
30 static struct resource smsc911x_resources[] = {
31 	[0] = {
32 		.start		= 0x24000000,
33 		.end		= 0x240000ff,
34 		.flags		= IORESOURCE_MEM,
35 	},
36 	[1] = {
37 		.start		= 64,
38 		.end		= 64,
39 		.flags		= IORESOURCE_IRQ,
40 	},
41 };
42 
43 static struct platform_device smsc911x_device = {
44 	.name		= "smsc911x",
45 	.id		= -1,
46 	.num_resources	= ARRAY_SIZE(smsc911x_resources),
47 	.resource	= smsc911x_resources,
48 	.dev		= {
49 		.platform_data = &smsc911x_config,
50 	},
51 };
52 
53 static struct gpio_led rsk7203_gpio_leds[] = {
54 	{
55 		.name			= "green",
56 		.gpio			= GPIO_PE10,
57 		.active_low		= 1,
58 	}, {
59 		.name			= "orange",
60 		.default_trigger	= "nand-disk",
61 		.gpio			= GPIO_PE12,
62 		.active_low		= 1,
63 	}, {
64 		.name			= "red:timer",
65 		.default_trigger	= "timer",
66 		.gpio			= GPIO_PC14,
67 		.active_low		= 1,
68 	}, {
69 		.name			= "red:heartbeat",
70 		.default_trigger	= "heartbeat",
71 		.gpio			= GPIO_PE11,
72 		.active_low		= 1,
73 	},
74 };
75 
76 static struct gpio_led_platform_data rsk7203_gpio_leds_info = {
77 	.leds		= rsk7203_gpio_leds,
78 	.num_leds	= ARRAY_SIZE(rsk7203_gpio_leds),
79 };
80 
81 static struct platform_device led_device = {
82 	.name		= "leds-gpio",
83 	.id		= -1,
84 	.dev		= {
85 		.platform_data	= &rsk7203_gpio_leds_info,
86 	},
87 };
88 
89 static struct gpio_keys_button rsk7203_gpio_keys_table[] = {
90 	{
91 		.code		= BTN_0,
92 		.gpio		= GPIO_PB0,
93 		.active_low	= 1,
94 		.desc		= "SW1",
95 	}, {
96 		.code		= BTN_1,
97 		.gpio		= GPIO_PB1,
98 		.active_low	= 1,
99 		.desc		= "SW2",
100 	}, {
101 		.code		= BTN_2,
102 		.gpio		= GPIO_PB2,
103 		.active_low	= 1,
104 		.desc		= "SW3",
105 	},
106 };
107 
108 static struct gpio_keys_platform_data rsk7203_gpio_keys_info = {
109 	.buttons	= rsk7203_gpio_keys_table,
110 	.nbuttons	= ARRAY_SIZE(rsk7203_gpio_keys_table),
111 	.poll_interval	= 50, /* default to 50ms */
112 };
113 
114 static struct platform_device keys_device = {
115 	.name		= "gpio-keys-polled",
116 	.dev		= {
117 		.platform_data	= &rsk7203_gpio_keys_info,
118 	},
119 };
120 
121 static struct platform_device *rsk7203_devices[] __initdata = {
122 	&smsc911x_device,
123 	&led_device,
124 	&keys_device,
125 };
126 
127 static int __init rsk7203_devices_setup(void)
128 {
129 	/* Select pins for SCIF0 */
130 	gpio_request(GPIO_FN_TXD0, NULL);
131 	gpio_request(GPIO_FN_RXD0, NULL);
132 
133 	/* Setup LAN9118: CS1 in 16-bit Big Endian Mode, IRQ0 at Port B */
134 	__raw_writel(0x36db0400, 0xfffc0008); /* CS1BCR */
135 	gpio_request(GPIO_FN_IRQ0_PB, NULL);
136 
137 	return platform_add_devices(rsk7203_devices,
138 				    ARRAY_SIZE(rsk7203_devices));
139 }
140 device_initcall(rsk7203_devices_setup);
141