/branches/18.06.1/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c |
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/* |
* Arduino Yun support |
* |
* Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org> |
* Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de> |
* |
* This program is free software; you can redistribute it and/or modify it |
* under the terms of the GNU General Public License version 2 as published |
* by the Free Software Foundation. |
*/ |
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#include "dev-eth.h" |
#include "dev-gpio-buttons.h" |
#include "dev-leds-gpio.h" |
#include "dev-m25p80.h" |
#include "dev-spi.h" |
#include "dev-usb.h" |
#include "dev-wmac.h" |
#include "machtypes.h" |
#include <asm/mach-ath79/ar71xx_regs.h> |
#include <asm/mach-ath79/ath79.h> |
#include <linux/gpio.h> |
#include "common.h" |
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// Uncomment to have reset on gpio18 instead of gipo7 |
#define DS2_B |
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#define DS_GPIO_LED_WLAN 0 |
#define DS_GPIO_LED_USB 1 |
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#define DS_GPIO_OE 21 |
#define DS_GPIO_AVR_RESET 18 |
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// Maintained to have the console in the previous version of DS2 working |
#define DS_GPIO_AVR_RESET_DS2 7 |
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#define DS_GPIO_OE2 22 |
#define DS_GPIO_UART_ENA 23 |
#define DS_GPIO_CONF_BTN 20 |
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#define DS_KEYS_POLL_INTERVAL 20 /* msecs */ |
#define DS_KEYS_DEBOUNCE_INTERVAL (3 * DS_KEYS_POLL_INTERVAL) |
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#define DS_MAC0_OFFSET 0x0000 |
#define DS_MAC1_OFFSET 0x0006 |
#define DS_CALDATA_OFFSET 0x1000 |
#define DS_WMAC_MAC_OFFSET 0x1002 |
|
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static struct gpio_led ds_leds_gpio[] __initdata = { |
{ |
.name = "arduino:white:usb", |
.gpio = DS_GPIO_LED_USB, |
.active_low = 0, |
}, |
{ |
.name = "arduino:blue:wlan", |
.gpio = DS_GPIO_LED_WLAN, |
.active_low = 0, |
}, |
}; |
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static struct gpio_keys_button ds_gpio_keys[] __initdata = { |
{ |
.desc = "configuration button", |
.type = EV_KEY, |
.code = KEY_WPS_BUTTON, |
.debounce_interval = DS_KEYS_DEBOUNCE_INTERVAL, |
.gpio = DS_GPIO_CONF_BTN, |
.active_low = 1, |
}, |
}; |
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static void __init ds_common_setup(void) |
{ |
static u8 mac[6]; |
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u8 *art = (u8 *) KSEG1ADDR(0x1fff0000); |
ath79_register_m25p80(NULL); |
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if (ar93xx_wmac_read_mac_address(mac)) { |
ath79_register_wmac(NULL, NULL); |
} else { |
ath79_register_wmac(art + DS_CALDATA_OFFSET, |
art + DS_WMAC_MAC_OFFSET); |
memcpy(mac, art + DS_WMAC_MAC_OFFSET, sizeof(mac)); |
} |
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mac[3] |= 0x08; |
ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0); |
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mac[3] &= 0xF7; |
ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0); |
ath79_register_mdio(0, 0x0); |
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/* LAN ports */ |
ath79_register_eth(1); |
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/* WAN port */ |
ath79_register_eth(0); |
} |
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static void __init ds_setup(void) |
{ |
u32 t; |
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ds_common_setup(); |
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ath79_register_leds_gpio(-1, ARRAY_SIZE(ds_leds_gpio), |
ds_leds_gpio); |
ath79_register_gpio_keys_polled(-1, DS_KEYS_POLL_INTERVAL, |
ARRAY_SIZE(ds_gpio_keys), |
ds_gpio_keys); |
ath79_register_usb(); |
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/* use the swtich_led directly form sysfs */ |
ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN | |
AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN | |
AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN | |
AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN | |
AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN); |
|
//Disable the Function for some pins to have GPIO functionality active |
// GPIO6-7-8 and GPIO11 |
ath79_gpio_function_setup(AR933X_GPIO_FUNC_JTAG_DISABLE | AR933X_GPIO_FUNC_I2S_MCK_EN, 0); |
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ath79_gpio_function2_setup(AR933X_GPIO_FUNC2_JUMPSTART_DISABLE, 0); |
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printk("Setting DogStick2 GPIO\n"); |
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t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP); |
t |= AR933X_BOOTSTRAP_MDIO_GPIO_EN; |
ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP, t); |
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// Put the avr reset to high |
if (gpio_request_one(DS_GPIO_AVR_RESET_DS2, |
GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0) |
printk("Error setting GPIO OE\n"); |
gpio_unexport(DS_GPIO_AVR_RESET_DS2); |
gpio_free(DS_GPIO_AVR_RESET_DS2); |
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// enable OE of level shifter |
if (gpio_request_one(DS_GPIO_OE, |
GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, "OE-1") != 0) |
printk("Error setting GPIO OE\n"); |
|
if (gpio_request_one(DS_GPIO_UART_ENA, |
GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED, "UART-ENA") != 0) |
printk("Error setting GPIO Uart Enable\n"); |
|
// enable OE of level shifter |
if (gpio_request_one(DS_GPIO_OE2, |
GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, "OE-2") != 0) |
printk("Error setting GPIO OE2\n"); |
} |
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MIPS_MACHINE(ATH79_MACH_ARDUINO_YUN, "Yun", "Arduino Yun", ds_setup); |