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. 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.
