HCL:ProBox2 Ava

The PROBOX2 AVA is a TV set-top-box shipping with Android.

Technical data

ProBox2 Ava (upside down) with SSD and UART cable attached

Realtek RTD1295DD SoC
- 4x ARM Cortex-A53 CPU
2 GB RAM
16 GB eMMC
SD card slot
SATA 2.5" hard drive slot
1x USB 2.0, 1x USB 3.0
1x 1 Gb Ethernet
1x HDMI out, 1x HDMI in
SPDIF

UART access

When removing the bottom cover, the four pin holes next to the hard drive slot are:
3.3VD, TX, RX, GND (from back-side connectors towards front display)

Manual installation

U-Boot

Not mainline.

Ethernet (ping, tftp) , USB (usb start) and SD (sd rescan) are not working. Serial seems the only way to load an alternative kernel (e.g., via minicom).

loady $kernel_loadaddr
loady $fdt_loadaddr
loady $rootfs_loadaddr
fdt addr $fdt_loadaddr
fdt resize
env set bootargs "initrd=$rootfs_loadaddr,0x$filesize"
env set bootcmd 'booti $kernel_loadaddr - $fdt_loadaddr'
b2ndbc

Kernel

v4.13-rc1 had initial RTD1295 support.

An Ava .dts for 4.14 is in the works.