[meta-xilinx] Zedboard Bring-up Yocto fido, meta-xilinx

[Johnson, Eric MH]

> Hi,
>
> I’ve had some experience with Yocto in the past and I’m trying to get a project started using the Avnet Zedboard, I have YP fido 1.8 and the meta-xilinx setup. I had an issue with a recipe downloading  source initially and now have a successful core-image-minimal build.  Initially I am trying to boot > directly from the SD card and the boot process appears to hang up when reading the kernel.
>
> Boot Sequence output:
> U-Boot SPL 2015.01 (Oct 28 2015 - 09:53:12)
> mmc boot
> reading download.bit
> reading download.bit
>   design filename = "TW5_top_level;UserID=0XFFFFFFFF;Version=2015.2"
>   part number = "7z020clg484"
>   date = "2015/08/04"
>   time = "11:56:16"
>   bytes in bitstream = 4045564
> zynq_align_dma_buffer: Align buffer at 400006d to 4000000(swap 1)
> reading system.dtb
> reading uImage
> reading uImage
> ** Just hangs here forever **

I had a similar issue when using a custom board.  The issue was that the boot directory in the rootfs had the wrong device tree / uImage.  Evidently we did not set up our device tree correctly for Yocto to populate the boot directory.  After removing all files in the boot directory on the rootfs, we were able to boot the board using a kernel generated by Vivado.

YMMV.

Eric
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