Amarula A64 Relic
================
Amarula A64-Relic is an Allwinner A64 based IoT device, which supports:
- Allwinner A64 Cortex-A53
- Mali-400MP2 GPU
- AXP803 PMIC
- 1GB DDR3 RAM
- 8GB eMMC
- AP6330 Wifi/BLE
- MIPI-DSI
- CSI: OV5640 sensor
- USB OTG
- 12V DC power supply
Wiki link:
https://openedev.amarulasolutions.com/display/ODWIKI/Amarual+A64-Relic
Build
=====
$ make amarula_a64_relic_defconfig
$ make
build files at output/images/:
- sunxi-spl.bin
- u-boot.itb
- Image
- sun50i-a64-amarula-relic.dtb
- boot.vfat
- rootfs.ext4
Write eMMC
=========
The board comes with an operating system preloaded on the eMMC.
To replace it with the Buildroot-built system, take the following
steps
1. Connect the board UART with host and open minicom(ttyUSBx/115200N8)
2. Supply 12V DC for power-on the board.
3. Interrupt U-Boot by pressing enter
4. Create GPT partitions
=> mmc dev 1
=> gpt write mmc 1 $partitions
5. Connect the board USB-OTG with USB slot on the host.
6. Initiate fastboot
=> fastboot 0
7. Write images from host onto eMMC using fastboot
$ cd output/images
$ sudo fastboot -i 0x1f3a flash loader1 sunxi-spl.bin
$ sudo fastboot -i 0x1f3a flash loader2 u-boot.itb
$ sudo fastboot -i 0x1f3a flash esp boot.vfat
$ sudo fastboot -i 0x1f3a flash system rootfs.ext4
Update eMMC during Development
==============================
During development, reflashing the entire filesystem image at every
change is time consuming. A useful alternative is to directly access
over USB the filesystem stored on the eMMC, using the USB Mass Storage
capability of U-Boot. To achieve this:
1. Build U-Boot by enabling UMS
$ make uboot-menuconfig
(select CONFIG_CMD_USB_MASS_STORAGE=y)
2. Follow all 6 steps from 'Write eMMC' and mount eMMC on host
=> mmc dev 1
=> ums 0 mmc 1
WiFi
====
# wpa_passphrase ACCESSPOINTNAME >> /etc/wpa_supplicant.conf
(type password and enter)
# wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B
# udhcpc -i wlan0
# ping google.com
--
Jagan Teki <jagan@amarulasolutions.com>
29-Jun-2018
5e01e9442d