Hi, The fastboot feature sounds like an ideal approach! I never used this u-boot feature! Can you point me to some good documentation, possible directly related to the Allwinner SoC's ?
Thanks, On Monday, 17 October 2016 15:28:00 UTC+2, Andre Przywara wrote: > > Hi, > > one thing I forgot ... > > On 17/10/16 14:18, Andre Przywara wrote: > > Hi, > > > > On 17/10/16 14:08, Ciprian Manea wrote: > >> Hi Andre, > >> > >> Thanks for your answer! > >> The thing is that there are a lot of libs&apps in the image and is > >> bigger than the available RAM. > >> If there's no way to flash the eMMC through the sunxi tools, is there a > >> way to boot over an USB storage device > >> and flash an image that is store on the USB storage to the eMMC ? > > > > Yes, that's what I wanted to say in the first message. > > You can either fully boot into Linux (for instance using an initrd, > > root-over-NFS, root-on-SD card or root-on-USB) and do the flashing from > > there. Or you do it from U-Boot as I described, with the same options, > > bascially. > > Another popular possibility seems to be to use the fastboot feature in > U-Boot: You boot into U-Boot using FEL, then switch to fastboot on your > PC (and U-Boot) and do the rest of the flashing from there. This > requires OTG functionality in U-Boot and I haven't tried this myself > yet, but apparently there are a lot of happy users of this method. > > Cheers, > Andre. > > > If your image is bigger than the DRAM, you can still load in smaller > > chunks in U-Boot and do the writing accordingly, though this sound > > tedious to automate. I don't think U-Boot supports direct copying from > > one medium to another. > > Given that I think it might be easier to boot into Linux, because it > > doesn't have that restriction (dd if=image.file of=/dev/mmcblk1) and is > > also easier to automate. > > > >> And there are the phoenix tools. Are these of any use for flashing > >> Linux images? > > > > I have no idea, and frankly don't really care ;-) > > > > But since you are the second person in two weeks asking me that, I think > > there is some case for providing some GUI wrapper or at least some > > wrapper script around sunxi-fel to tackle that use case. > > > > Cheers, > > Andre. > > > >> On Monday, 17 October 2016 12:49:36 UTC+2, Andre Przywara wrote: > >> > >> Hi Ciprian, > >> > >> On 17/10/16 11:13, Ciprian Manea wrote: > >> > > >> > I'm using the Sinlinx SinA33 dev board, I connected it to my dev > pc > >> > using the OTG cable, and I was able to boot it in the FEL mode. > >> > > >> > I used the sunxi tools (sunxi-fel more specifically ) to get BROM > >> > version and boot the board over usb. > >> > But is there a way to flash the onboard eMMC over the usb, using > the > >> > sunxi tools ? > >> > >> Not that I am aware of, and not sure if it's worth to pull in a MMC > >> driver via FEL (like we do with the much smaller SPI NOR flash > code). > >> > >> What I did last week was booting into U-Boot via FEL and using the > mmc > >> command there to write the eMMC. > >> You can get data in via TFTP, USB storage (pen drive) or reading > >> from an > >> SD card, for instance. Of course you can also load the image via > FEL. > >> This works easily when the amount to flash is not overly big (read: > >> fits > >> in DRAM easily). > >> So you do something like: > >> # tftpboot 0x50000000 emmc.img > >> # mmc write 0x50000000 0 <nr of sectors> > >> > >> I think you can even automate this by some U-Boot environment magic > (I > >> think sunxi-fel gained something for this lately). > >> > >> I also enabled the md5sum command (which required some build system > >> changes) to make sure the transfer and flashing was sane. > >> > >> Cheers, > >> Andre. > >> > > > -- 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.
