4 * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
5 * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
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.
13 #include "dev-gpio-buttons.h"
14 #include "dev-leds-gpio.h"
15 #include "dev-m25p80.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>
25 // Uncomment to have reset on gpio18 instead of gipo7
28 #define DS_GPIO_LED_WLAN 0
29 #define DS_GPIO_LED_USB 1
32 #define DS_GPIO_AVR_RESET 18
34 // Maintained to have the console in the previous version of DS2 working
35 #define DS_GPIO_AVR_RESET_DS2 7
37 #define DS_GPIO_OE2 22
38 #define DS_GPIO_UART_ENA 23
39 #define DS_GPIO_CONF_BTN 20
41 #define DS_KEYS_POLL_INTERVAL 20 /* msecs */
42 #define DS_KEYS_DEBOUNCE_INTERVAL (3 * DS_KEYS_POLL_INTERVAL)
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
50 static struct gpio_led ds_leds_gpio
[] __initdata
= {
52 .name
= "arduino:white:usb",
53 .gpio
= DS_GPIO_LED_USB
,
57 .name
= "arduino:blue:wlan",
58 .gpio
= DS_GPIO_LED_WLAN
,
63 static struct gpio_keys_button ds_gpio_keys
[] __initdata
= {
65 .desc
= "configuration button",
67 .code
= KEY_WPS_BUTTON
,
68 .debounce_interval
= DS_KEYS_DEBOUNCE_INTERVAL
,
69 .gpio
= DS_GPIO_CONF_BTN
,
74 static void __init
ds_common_setup(void)
78 u8
*art
= (u8
*) KSEG1ADDR(0x1fff0000);
79 ath79_register_m25p80(NULL
);
81 if (ar93xx_wmac_read_mac_address(mac
)) {
82 ath79_register_wmac(NULL
, NULL
);
84 ath79_register_wmac(art
+ DS_CALDATA_OFFSET
,
85 art
+ DS_WMAC_MAC_OFFSET
);
86 memcpy(mac
, art
+ DS_WMAC_MAC_OFFSET
, sizeof(mac
));
90 ath79_init_mac(ath79_eth0_data
.mac_addr
, mac
, 0);
93 ath79_init_mac(ath79_eth1_data
.mac_addr
, mac
, 0);
94 ath79_register_mdio(0, 0x0);
97 ath79_register_eth(1);
100 ath79_register_eth(0);
103 static void __init
ds_setup(void)
109 ath79_register_leds_gpio(-1, ARRAY_SIZE(ds_leds_gpio
),
111 ath79_register_gpio_keys_polled(-1, DS_KEYS_POLL_INTERVAL
,
112 ARRAY_SIZE(ds_gpio_keys
),
114 ath79_register_usb();
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
);
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);
127 ath79_gpio_function2_setup(AR933X_GPIO_FUNC2_JUMPSTART_DISABLE
, 0);
129 printk("Setting DogStick2 GPIO\n");
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
);
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
);
142 // enable OE of level shifter
143 if (gpio_request_one(DS_GPIO_OE
,
144 GPIOF_OUT_INIT_HIGH
| GPIOF_EXPORT_DIR_FIXED
, "OE-1") != 0)
145 printk("Error setting GPIO OE\n");
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");
151 // enable OE of level shifter
152 if (gpio_request_one(DS_GPIO_OE2
,
153 GPIOF_OUT_INIT_HIGH
| GPIOF_EXPORT_DIR_FIXED
, "OE-2") != 0)
154 printk("Error setting GPIO OE2\n");
157 MIPS_MACHINE(ATH79_MACH_ARDUINO_YUN
, "Yun", "Arduino Yun", ds_setup
);