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ath79: add support for Arduino Yun

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Arduino Yun is a microcontroller development board, based on Atmel
ATmega32u4 and Atheros AR9331.

Specifications:
- MCU: ATmega32U4
- SoC: AR9331
- RAM: DDR2 64MB
- Flash: SPI NOR 16MB
- WiFi:
  - 2.4GHz: SoC internal
- Ethernet: 1x 10/100Mbps
- USB: 1x 2.0
- MicroSD: 1x SDHC

Notes:
- Stock firmware is based on OpenWrt AA.
- The SoC UART can be accessed only through the MCU.
  YunSerialTerminal is recommended for access to serial console.
- Stock firmware uses non-standard 250000 baudrate by default.
- The MCU can be reprogrammed from the SoC with avrdude linuxgpio.

Installation:
1.  Update U-Boot environment variables to adapt to new partition scheme.
    > setenv bootcmd "run addboard; run addtty; run addparts; run addrootfs; bootm 0x9f050000 || bootm 0x9fea0000"
    > setenv mtdparts "spi0.0:256k(u-boot)ro,64k(u-boot-env),15936k(firmware),64k(nvram),64k(art)ro"
    > saveenv
2.  Boot into stock firmware normally and perform sysupgrade with
    sysupgrade image.
    # sysupgrade -n -F /tmp/sysupgrade.bin

Signed-off-by: Sungbo Eo <mans0n@gorani.run>
This commit is contained in:
Sungbo Eo
2020-01-12 21:36:23 +09:00
committed by Petr Štetiar
parent dc61e3b7ff
commit 358aec7775
7 changed files with 352 additions and 0 deletions
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3
target/linux/ath79/generic/base-files/etc/uci-defaults/04_led_migration
View File

@@ -5,6 +5,9 @@ board=$(board_name)
boardonly="${board##*,}"
case "$board" in
arduino,yun)
migrate_leds "arduino:=yun:"
;;
engenius,epg5000)
migrate_leds ":wlan-2g=:wlan2g" ":wlan-5g=:wlan5g"
;;