On 2016-07-13 16:57 -0700, Martin Michlmayr wrote: > * Wookey <wookey@wookware.org> [2016-07-13 13:03]: > > > I spoke to NVIDIA and they recommend mainline u-boot, so I removed the > > > NVIDIA u-boot as an option. Since users have to upgrade, I moved the > > > u-boot text back up again. > > > > Do they? I didn't upgrade nmy uboot (which is why I moved it down the > > bottom as it seemed to be optional). Perhaps my board had already got > > a fairly recent uboot. If the point that the Debian uboot will set the > > missing console and ftdfile uboot variables so that things are more > > automatic? But I see those are still in the instructions? > > See http://permalink.gmane.org/gmane.linux.ports.tegra/26941 > > Basically, I got a hang with an old u-boot. I tried putting in the new debian u-boot as documented on https://wiki.debian.org/InstallingDebianOn/NVIDIA/Jetson-TK1 sudo ./flash.sh -L ../tmp/usr/lib/u-boot/jetson-tk1/u-boot-dtb-tegra.bin -S 14580MiB jetson-tk1 mmcblk0p1 (i.e to internal flash, not SD card), and all I got was a bricked board that won't boot at all. So that's dull. Now, lets see if I can get it going again. Ah yes. flashing the bootloader/u-boot.bin file from the Tegra_for_Linux distro gets me a bootloader that does something. sudo ./flash.sh -L bootloader/u-boot.bin jetson-tk1 mmcblk0p1 I can go back and forth: debian u-boot-dtb-tegra.bin produces total darkness. supplied u-boot.bin works. I guess the debian one worked on your board? Where do people who understand the details of this board hang out? I tried joining the https://devtalk.nvidia.com/ forums but never got a confirmation email. Is there an IRC channel. cc:ing debian-arm for now. Background for debian-arm: I installed debian stetch on an Nvidia jetson TK1 (armhf) board with no real difficulties, and updated https://wiki.debian.org/InstallingDebianOn/NVIDIA/Jetson-TK1 (and Martin has updated it more since). But whilst this was fine with debian kernel 4.5, intalling 4.6 made it fail to boot. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=827557 for details. Whilst trying to work out exactly why the 4.6 kernels broke I discovered the above issue with the debian uboot-tegra image not working for me (at least as arranged by the flash.sh script). Clues welcome Wookey -- Principal hats: Linaro, Debian, Wookware, ARM http://wookware.org/
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