ar71xx: Add support for the OMYlink OMY-X1
[openwrt/openwrt.git] / target / linux / ar71xx / files / arch / mips / ath79 / mach-arduino-yun.c
1 /*
2 * Arduino Yun support
3 *
4 * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 as published
9 * by the Free Software Foundation.
10 */
11
12 #include "dev-eth.h"
13 #include "dev-gpio-buttons.h"
14 #include "dev-leds-gpio.h"
15 #include "dev-m25p80.h"
16 #include "dev-spi.h"
17 #include "dev-usb.h"
18 #include "dev-wmac.h"
19 #include "machtypes.h"
20 #include <asm/mach-ath79/ar71xx_regs.h>
21 #include <asm/mach-ath79/ath79.h>
22 #include <linux/gpio.h>
23 #include "common.h"
24
25 // Uncomment to have reset on gpio18 instead of gipo7
26 #define DS2_B
27
28 #define DS_GPIO_LED_WLAN 0
29 #define DS_GPIO_LED_USB 1
30
31 #define DS_GPIO_OE 21
32 #define DS_GPIO_AVR_RESET 18
33
34 // Maintained to have the console in the previous version of DS2 working
35 #define DS_GPIO_AVR_RESET_DS2 7
36
37 #define DS_GPIO_OE2 22
38 #define DS_GPIO_UART_ENA 23
39 #define DS_GPIO_CONF_BTN 20
40
41 #define DS_KEYS_POLL_INTERVAL 20 /* msecs */
42 #define DS_KEYS_DEBOUNCE_INTERVAL (3 * DS_KEYS_POLL_INTERVAL)
43
44 #define DS_MAC0_OFFSET 0x0000
45 #define DS_MAC1_OFFSET 0x0006
46 #define DS_CALDATA_OFFSET 0x1000
47 #define DS_WMAC_MAC_OFFSET 0x1002
48
49
50 static struct gpio_led ds_leds_gpio[] __initdata = {
51 {
52 .name = "arduino:white:usb",
53 .gpio = DS_GPIO_LED_USB,
54 .active_low = 0,
55 },
56 {
57 .name = "arduino:blue:wlan",
58 .gpio = DS_GPIO_LED_WLAN,
59 .active_low = 0,
60 },
61 };
62
63 static struct gpio_keys_button ds_gpio_keys[] __initdata = {
64 {
65 .desc = "configuration button",
66 .type = EV_KEY,
67 .code = KEY_WPS_BUTTON,
68 .debounce_interval = DS_KEYS_DEBOUNCE_INTERVAL,
69 .gpio = DS_GPIO_CONF_BTN,
70 .active_low = 1,
71 },
72 };
73
74 static void __init ds_common_setup(void)
75 {
76 static u8 mac[6];
77
78 u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
79 ath79_register_m25p80(NULL);
80
81 if (ar93xx_wmac_read_mac_address(mac)) {
82 ath79_register_wmac(NULL, NULL);
83 } else {
84 ath79_register_wmac(art + DS_CALDATA_OFFSET,
85 art + DS_WMAC_MAC_OFFSET);
86 memcpy(mac, art + DS_WMAC_MAC_OFFSET, sizeof(mac));
87 }
88
89 mac[3] |= 0x08;
90 ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
91
92 mac[3] &= 0xF7;
93 ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
94 ath79_register_mdio(0, 0x0);
95
96 /* LAN ports */
97 ath79_register_eth(1);
98
99 /* WAN port */
100 ath79_register_eth(0);
101 }
102
103 static void __init ds_setup(void)
104 {
105 u32 t;
106
107 ds_common_setup();
108
109 ath79_register_leds_gpio(-1, ARRAY_SIZE(ds_leds_gpio),
110 ds_leds_gpio);
111 ath79_register_gpio_keys_polled(-1, DS_KEYS_POLL_INTERVAL,
112 ARRAY_SIZE(ds_gpio_keys),
113 ds_gpio_keys);
114 ath79_register_usb();
115
116 /* use the swtich_led directly form sysfs */
117 ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
118 AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
119 AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
120 AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
121 AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
122
123 //Disable the Function for some pins to have GPIO functionality active
124 // GPIO6-7-8 and GPIO11
125 ath79_gpio_function_setup(AR933X_GPIO_FUNC_JTAG_DISABLE | AR933X_GPIO_FUNC_I2S_MCK_EN, 0);
126
127 ath79_gpio_function2_setup(AR933X_GPIO_FUNC2_JUMPSTART_DISABLE, 0);
128
129 printk("Setting DogStick2 GPIO\n");
130
131 t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
132 t |= AR933X_BOOTSTRAP_MDIO_GPIO_EN;
133 ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP, t);
134
135 // Put the avr reset to high
136 if (gpio_request_one(DS_GPIO_AVR_RESET_DS2,
137 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0)
138 printk("Error setting GPIO OE\n");
139 gpio_unexport(DS_GPIO_AVR_RESET_DS2);
140 gpio_free(DS_GPIO_AVR_RESET_DS2);
141
142 // enable OE of level shifter
143 if (gpio_request_one(DS_GPIO_OE,
144 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0)
145 printk("Error setting GPIO OE\n");
146
147 if (gpio_request_one(DS_GPIO_UART_ENA,
148 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "UART-ENA") != 0)
149 printk("Error setting GPIO Uart Enable\n");
150
151 // enable OE of level shifter
152 if (gpio_request_one(DS_GPIO_OE2,
153 GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-2") != 0)
154 printk("Error setting GPIO OE2\n");
155 }
156
157 MIPS_MACHINE(ATH79_MACH_ARDUINO_YUN, "Yun", "Arduino Yun", ds_setup);