diff options
Diffstat (limited to 'target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c')
-rw-r--r-- | target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c new file mode 100644 index 0000000..fbe1f99 --- /dev/null +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-arduino-yun.c @@ -0,0 +1,137 @@ +/* + * 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. + */ + +#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 "common.h" +#include "gpio.h" +#include "linux/gpio.h" + +// Uncomment to have reset on gpio18 instead of gipo7 +#define DS2_B + +#define DS_GPIO_LED_WLAN 0 +#define DS_GPIO_LED_USB 1 + +#define DS_GPIO_OE 21 +#define DS_GPIO_AVR_RESET 18 + +// Maintained to have the console in the previous version of DS2 working +#define DS_GPIO_AVR_RESET_DS2 7 + +#define DS_GPIO_OE2 22 +#define DS_GPIO_UART_ENA 23 +#define DS_GPIO_CONF_BTN 20 + +#define DS_KEYS_POLL_INTERVAL 20 /* msecs */ +#define DS_KEYS_DEBOUNCE_INTERVAL (3 * DS_KEYS_POLL_INTERVAL) + +#define DS_MAC0_OFFSET 0x0000 +#define DS_MAC1_OFFSET 0x0006 +#define DS_CALDATA_OFFSET 0x1000 +#define DS_WMAC_MAC_OFFSET 0x1002 + + +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, + }, +}; + +static void __init ds_common_setup(void) +{ + static u8 mac[6]; + + u8 *art = (u8 *) KSEG1ADDR(0x1fff0000); + ath79_register_m25p80(NULL); + + 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)); + } + + mac[3] |= 0x08; + ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0); + + mac[3] &= 0xF7; + ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0); + ath79_register_mdio(0, 0x0); + + /* LAN ports */ + ath79_register_eth(1); + + /* WAN port */ + ath79_register_eth(0); +} + +static void __init ds_setup(void) +{ + u32 t; + + ds_common_setup(); + + ath79_register_leds_gpio(-1, ARRAY_SIZE(ds_leds_gpio), + ds_leds_gpio); + ath79_register_usb(); + + //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); + + ath79_gpio_function2_setup(AR933X_GPIO_FUNC2_JUMPSTART_DISABLE, 0); + + printk("Setting DogStick2 GPIO\n"); + + t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP); + t |= AR933X_BOOTSTRAP_MDIO_GPIO_EN; + ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP, t); + + // 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); + + // enable OE of level shifter + if (gpio_request_one(DS_GPIO_OE, + GPIOF_OUT_INIT_LOW | 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_LOW | GPIOF_EXPORT_DIR_FIXED, "OE-2") != 0) + printk("Error setting GPIO OE2\n"); +} + +MIPS_MACHINE(ATH79_MACH_ARDUINO_YUN, "Yun", "Arduino Yun", ds_setup); |