On Thu, Apr 21, 2016 at 7:45 PM, jonsm...@gmail.com <jonsm...@gmail.com> wrote: > On Thu, Apr 21, 2016 at 6:01 PM, Siarhei Siamashka > <siarhei.siamas...@gmail.com> wrote: >> On Thu, 21 Apr 2016 16:14:13 -0400 >> "jonsm...@gmail.com" <jonsm...@gmail.com> wrote: >> >>> On Thu, Apr 21, 2016 at 4:09 PM, Siarhei Siamashka >>> <siarhei.siamas...@gmail.com> wrote: >>> > On Thu, 21 Apr 2016 13:38:19 -0400 >>> > "jonsm...@gmail.com" <jonsm...@gmail.com> wrote: >>> > >>> >> On Thu, Apr 21, 2016 at 1:17 PM, Siarhei Siamashka >>> >> <siarhei.siamas...@gmail.com> wrote: >>> >> > Hello, >>> >> > >>> >> > On Thu, 21 Apr 2016 11:24:56 -0400 >>> >> > "jonsm...@gmail.com" <jonsm...@gmail.com> wrote: >>> >> > >>> >> >> The manual is very sparse on this subject. Does anyone know what order >>> >> >> it looks at the MMC options? >>> >> >> >>> >> >> For example - MMC flash and an SD Card socket. For brick recovery it >>> >> >> should be possible to put in an SD Card with a proper boot sector >>> >> >> (right signature) and then boot from the SD Card overriding the MMC >>> >> >> flash. >>> >> >>> >> Thanks for info. >>> >> >>> >> > >>> >> > We don't have full details yet, but it looks like the boot order >>> >> > on Allwinner A64 is somewhat similar to >>> >> > https://linux-sunxi.org/Boot#A31 >>> >> > >>> >> > For example, the Jide Remix Mini device boots from the internal >>> >> > eMMC by default, but the user can override the boot order by >>> >> > pressing the FEL button: >>> >> > https://linux-sunxi.org/Jide_Remix_Mini#FEL_mode >>> >> > >>> >> > And if I understand it correctly, most of the Allwinner based devices >>> >> > (at least the ones which do not deviate from the reference schematics) >>> >> > are perfectly unbrickable: >>> >> > >>> >> > http://lists.infradead.org/pipermail/linux-arm-kernel/2015-October/380686.html >>> >> > >>> >> > When somebody gets an A64 tablet, I strongly suspect that one of the >>> >> > volume control buttons is going to be connected to the FEL pin too. >>> >> > But we can't be 100% sure until somebody confirms this. >>> >> > >>> >> > Why are you asking this question? >>> >> >>> >> We are designing A64 board for an embedded system. >>> >> >>> >> I don't see any boot A64 jumpers for picking one of the four modes -- >>> >> sel[0:1] >>> > >>> > You are right. There are no UBOOT_SEL pins in the A64 datasheet. This >>> > probably means that there is some hardcoded boot order in the case if >>> > the FEL button is not pressed. But we haven't seen anything other than >>> > the SD card and the eMMC as a bootable media yet >>> > >>> > BTW, did you reply off-list on purpose? >>> >>> no, i just must have touched wrong reply key >> >> OK, adding the linux-sunxi mailing list back to CC :-) >> >> I have also tried to experiment a bit and added the actual A64 boot >> sequence information to the wiki: >> >> https://linux-sunxi.org/BROM#A64 >> >> As for designing an A64 board, unless you really want a 64-bit >> processor, something like Allwinner H3 might be a better choice >> right now. At least it is currently better supported in software >> and has more USB ports. ARM Cortex-A53 is faster than ARM Cortex-A7 >> per MHz, but it is also more power hungry. >> >> Do you have any contacts at Allwinner? Probably not, because otherwise >> you would not be asking the A64 boot sequence questions here. > > We require Android 5.1, not an option on H3.
I am interested in getting AW Android running on mainline. System is headless so there is no messing with video. > > >> >> -- >> Best regards, >> Siarhei Siamashka > > > > -- > Jon Smirl > jonsm...@gmail.com -- Jon Smirl jonsm...@gmail.com -- 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 linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
