[meta-xilinx] ramdisk format for booti command in u-boot

[Giordon Stark]

Hi Sandeep,

So I don't have `mmc` in u-boot at all. Here's my attempt at trying to do
it by setting root=/dev/mtd3 where that was supposedly pointing to the QSPI
flash partition I made with the rootfs in it:
https://gist.github.com/kratsg/33dd03d49d6c8580587410160f79243a

&qspi {
    flash0: flash at 0 {
        compatible = "micron,mt25qu02g";
        reg = <0x0>;
        #address-cells = <1>;
        #size-cells = <1>;
        spi-max-frequency = <50000000>;
        partition at qspi-fsbl-uboot {
                  label = "qspi-fsbl-uboot";
                  reg = <0x0 0x2000000>;
        };
        partition at qspi-linux {
                  label = "qspi-linux";
                  reg = <0x2000000 0x2000000>;
        };
        partition at qspi-device-tree {
                  label = "qspi-device-tree";
                  reg = <0x4000000 0x2000000>;
        };
        partition at qspi-rootfs {
                  label = "qspi-rootfs";
                  reg = <0x6000000 0x2000000>;
        };
        partition at qspi-bitstream {
                  label = "qspi-bitstream";
                  reg = <0x8000000 0x2000000>;
        };
    };
};

I'm not sure why I'm struggling so much with this part and I can't find
anything I'm doing wrong based on the various guides and posts, but it
seems like the partitions in the QSPI aren't being created as I expected.
Posts/guides like:

-
https://forums.xilinx.com/t5/Embedded-Linux/QSPI-FLASH-file-system-mount-error/td-p/759963

-
https://forums.xilinx.com/t5/Embedded-Linux/Booting-Linux-PL-bitstream-from-Zynq-QSPI/td-p/521617

- http://www.wiki.xilinx.com/Zynq+QSPI+Driver
- http://www.wiki.xilinx.com/Zynq+UltraScale+MPSoC+Non+Secure+Boot

Thanks,

Giordon

On Sat, Jan 13, 2018 at 12:09 AM Sandeep Gundlupet Raju <SANDEEPG at xilinx.com>
wrote:

> Hi Giordon,
>
>
>
> *Thanks,*
>
> *Sandeep*
>
>
>
> *From:* meta-xilinx-bounces at yoctoproject.org [mailto:
> meta-xilinx-bounces at yoctoproject.org] *On Behalf Of *Giordon Stark
> *Sent:* Wednesday, January 10, 2018 9:48 AM
> *To:* meta-xilinx at yoctoproject.org
> *Subject:* [meta-xilinx] ramdisk format for booti command in u-boot
>
>
>
> Hi all,
>
>
>
> Initially, I tried the bootm command, and found the Image format to be
> incorrect.. so then I switched to the booti command, and I get this:
>
>
> > booti 0x200000 0x7000000 0x1000000
>
> Bad Linux ARM64 Image magic!
>
>
>
>
> I do something like the following to set things up:
>
>
>
> > setenv ip no
>
> > setenv autoload no
>
> > setenv serverip 192.168.1.100
>
> > dhcp
>
> > tftpboot 0x200000 Image
>
> > tftpboot 0x7000000 zynq-base-gfex-prototype3.tar.gz
>
> > tftpboot 0x1000000 gfex-prototype3.dtb
>
>
>
> Three questions:
>
>
>
> 1) Is there a different image format I should be using? If so, what is it?
>
> 2) are the addresses here arbitrary?
>
> 3) if I run without the initrd (passing '-' as the second parameter
> instead), it gets to a point where it cannot open a root device (we have no
> working SD card):
> https://gist.github.com/kratsg/b5630a23aa3b71161da833fcad07eaaf - how to
> fix this? Having `bootargs=boot=ram0` or something similar did not work.
>
>
>
> Try similar to this command.
>
> # mmc dev 0 && mmcinfo && load mmc 0:1 0x80000 Image.bin && load mmc 0:1
> 0x4000000 system.dtb && load mmc 0:1 0x6000000 rootfs.cpio.gz && booti
> 0x80000 - 0x4000000
>
>
>
> Thanks,
>
>
>
> Giordon
>
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