On Mon, Jun 15, 2015 at 10:56 AM, Chen-Yu Tsai <[email protected]> wrote: > On Sat, Jun 13, 2015 at 5:05 PM, 'Simos Xenitellis' via linux-sunxi > <[email protected]> wrote: >> Hi All! >> >> Recently, several people received developer boards with the A83T SoC. >> >> I have collected information from a few sources and put them on >> https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T >> >> The page includes a comparison of modules of the A83T with other A-line SoCs. >> There are high-resolution images of the board. >> In addition, the page has boot messages and also output of commands >> from the pre-installed BR Linux (kernel version: 3.4). > > Some facts about the board: > > Boot0 is V4.0.0. > DRAM is 1GB DDR3 @ 672 MHz. > eMMC is 8GB (7.32 GiB). > AXP818 is a PMIC & audio codec combo. > AC200 is a audio codec (unused here), TV encoder, ethernet PHY and RTC > 4-in-1 chip. > USB0 (OTG) and USB1 (EHCI/OHCI) are routed directly to the 2 USB ports. > That means no actual OTG, only host mode. > > The board (and schematics) say this is an H8. > However I won't be removing the heatsink to verify. > I don't recommend it either. It is quite warm just idling. > That said, the A83T has the same packing as the H8 (BGA 345), > though I have not compared the actual pin signals. > > Kevin, Shuge, do you know if the 2 chips are actually the same? > 請問 A83T 和 H8 是一樣的晶片嗎? 提供給我們的板子上是印 H8， > 但告知我們是 A83T 的原型機，讓人不是很有把握。 > > The board runs a customized Android system. >
My impression is that it's just Buildroot (on /dev/mmcblk0p7), https://linux-sunxi.org/User:Simos/H8HomletProtoV20_A83T Did you manage to boot some other partition (like the big /dev/mmcblk0p1)? The partition /dev/mmcblk0p2 (FAT16) can be mounted, but only has images (as in BMP) and .FNT files and no other important files. > Not sure if FEL mode or Android fastboot would work on this board. > If not, it's going to be hard to mainline without U-boot support. > You can get into FEL mode if you keep pressing "2" while in the serial console and then restart the board. Perhaps I am missing something? Simos > UART0 is the 5 pin-out next to the WiFi module and AXP818. > It shares the same pinout as the micro-SD breakout, or the > A80 Optimus. Note that the onboard OS muxes UART0 onto mmc0 > instead. :| > > ChenYu > >> I'ld like to start a thread about the planning of the mainlining of the A83T. >> >> If there are any other topics not directly related to this thread, >> please start a new thread. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
