| 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 |
