1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Renesas Technology Europe RSK+ 7203 Support.
4  *
5  * Copyright (C) 2008 - 2010  Paul Mundt
6  */
7 #include <linux/init.h>
8 #include <linux/types.h>
9 #include <linux/platform_device.h>
10 #include <linux/interrupt.h>
11 #include <linux/smsc911x.h>
12 #include <linux/input.h>
13 #include <linux/gpio.h>
14 #include <linux/gpio_keys.h>
15 #include <linux/leds.h>
16 #include <asm/machvec.h>
17 #include <asm/io.h>
18 #include <cpu/sh7203.h>
19 
20 static struct smsc911x_platform_config smsc911x_config = {
21 	.phy_interface	= PHY_INTERFACE_MODE_MII,
22 	.irq_polarity	= SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
23 	.irq_type	= SMSC911X_IRQ_TYPE_OPEN_DRAIN,
24 	.flags		= SMSC911X_USE_32BIT | SMSC911X_SWAP_FIFO,
25 };
26 
27 static struct resource smsc911x_resources[] = {
28 	[0] = {
29 		.start		= 0x24000000,
30 		.end		= 0x240000ff,
31 		.flags		= IORESOURCE_MEM,
32 	},
33 	[1] = {
34 		.start		= 64,
35 		.end		= 64,
36 		.flags		= IORESOURCE_IRQ,
37 	},
38 };
39 
40 static struct platform_device smsc911x_device = {
41 	.name		= "smsc911x",
42 	.id		= -1,
43 	.num_resources	= ARRAY_SIZE(smsc911x_resources),
44 	.resource	= smsc911x_resources,
45 	.dev		= {
46 		.platform_data = &smsc911x_config,
47 	},
48 };
49 
50 static struct gpio_led rsk7203_gpio_leds[] = {
51 	{
52 		.name			= "green",
53 		.gpio			= GPIO_PE10,
54 		.active_low		= 1,
55 	}, {
56 		.name			= "orange",
57 		.default_trigger	= "nand-disk",
58 		.gpio			= GPIO_PE12,
59 		.active_low		= 1,
60 	}, {
61 		.name			= "red:timer",
62 		.default_trigger	= "timer",
63 		.gpio			= GPIO_PC14,
64 		.active_low		= 1,
65 	}, {
66 		.name			= "red:heartbeat",
67 		.default_trigger	= "heartbeat",
68 		.gpio			= GPIO_PE11,
69 		.active_low		= 1,
70 	},
71 };
72 
73 static struct gpio_led_platform_data rsk7203_gpio_leds_info = {
74 	.leds		= rsk7203_gpio_leds,
75 	.num_leds	= ARRAY_SIZE(rsk7203_gpio_leds),
76 };
77 
78 static struct platform_device led_device = {
79 	.name		= "leds-gpio",
80 	.id		= -1,
81 	.dev		= {
82 		.platform_data	= &rsk7203_gpio_leds_info,
83 	},
84 };
85 
86 static struct gpio_keys_button rsk7203_gpio_keys_table[] = {
87 	{
88 		.code		= BTN_0,
89 		.gpio		= GPIO_PB0,
90 		.active_low	= 1,
91 		.desc		= "SW1",
92 	}, {
93 		.code		= BTN_1,
94 		.gpio		= GPIO_PB1,
95 		.active_low	= 1,
96 		.desc		= "SW2",
97 	}, {
98 		.code		= BTN_2,
99 		.gpio		= GPIO_PB2,
100 		.active_low	= 1,
101 		.desc		= "SW3",
102 	},
103 };
104 
105 static struct gpio_keys_platform_data rsk7203_gpio_keys_info = {
106 	.buttons	= rsk7203_gpio_keys_table,
107 	.nbuttons	= ARRAY_SIZE(rsk7203_gpio_keys_table),
108 	.poll_interval	= 50, /* default to 50ms */
109 };
110 
111 static struct platform_device keys_device = {
112 	.name		= "gpio-keys-polled",
113 	.dev		= {
114 		.platform_data	= &rsk7203_gpio_keys_info,
115 	},
116 };
117 
118 static struct platform_device *rsk7203_devices[] __initdata = {
119 	&smsc911x_device,
120 	&led_device,
121 	&keys_device,
122 };
123 
rsk7203_devices_setup(void)124 static int __init rsk7203_devices_setup(void)
125 {
126 	/* Select pins for SCIF0 */
127 	gpio_request(GPIO_FN_TXD0, NULL);
128 	gpio_request(GPIO_FN_RXD0, NULL);
129 
130 	/* Setup LAN9118: CS1 in 16-bit Big Endian Mode, IRQ0 at Port B */
131 	__raw_writel(0x36db0400, 0xfffc0008); /* CS1BCR */
132 	gpio_request(GPIO_FN_IRQ0_PB, NULL);
133 
134 	return platform_add_devices(rsk7203_devices,
135 				    ARRAY_SIZE(rsk7203_devices));
136 }
137 device_initcall(rsk7203_devices_setup);
138