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