[U-Boot] fdt problem

[Peng Fan]

On Tue, Mar 15, 2016 at 09:27:51AM +0100, Safa Hamza wrote:
>the same problem ... but when i wrote fdt resize before U-Boot# fdt mknode /
>chosen modules no error appeared 
>is that right ?

Yeah. correct. "fdt mknode /xxx" needs more space, so need to first 
"fdt addr xxx [0x100000]", then "fdt resize", then "mknode"

Regards,
Peng.

>
>On Tue, Mar 15, 2016 at 6:34 AM, Peng Fan <van.freenix at gmail.com> wrote:
>
>    Hi Safa,
>
>    Cc Xen experts, Ian.
>   
>    On Mon, Mar 14, 2016 at 10:21:15AM +0100, Safa Hamza wrote:
>    >i'm trying to run xen on omap5 ..but i get a problem while doing this
>    >libfdt fdt_setprop(): FDT_ERR_NOSPACE
>    >
>    >
>    ******************************************************************************************
>    >U-Boot#  setenv dtb_addr_r 0x825f0000
>    >U-Boot# setenv xen_addr_r 0x90000000
>    >U-Boot# setenv kernel_addr_r 0xa0000000
>    >U-Boot# setenv xen_bootargs 'sync_console console=dtuart dtuart=serial2'
>    >U-Boot#  setenv dom0_bootargs 'console=hvc0,115200n8 earlyprintk=xen debug
>    >ignore_loglevel root=/dev/mmcblk0p2 rw rootwait fixrtc'
>    >U-Boot# fatload mmc 0:1 $dtb_addr_r omap5-uevm.dtb
>    >reading omap5-uevm.dtb
>    >44836 bytes read in 7 ms (6.1 MiB/s)
>    >U-Boot# fatload mmc 0:1 $xen_addr_r xen-uImage
>    >reading xen-uImage
>    >787372 bytes read in 43 ms (17.5 MiB/s)
>    >U-Boot#  fatload mmc 0:1 $kernel_addr_r zImage
>    >reading zImage
>    >4284248 bytes read in 212 ms (19.3 MiB/s)
>    >U-Boot# fdt addr $dtb_addr_r
>
>    I think you need to enlarge the space allocated to device tree.
>
>    Change "fdt addr $dtb_addr_r" to "fdt addr $dtb_addr_r 0x100000", then
>    have a try.
>
>    Regards,
>    Peng.
>   
>    >U-Boot# fdt resize
>    >U-Boot# fdt set /chosen xen,xen-bootargs \"$xen_bootargs\"
>    >U-Boot# fdt resize
>    >U-Boot# fdt set /chosen xen,dom0-bootargs \"$dom0_bootargs\"
>    >U-Boot# fdt mknode /chosen modules
>    >libfdt fdt_add_subnode(): FDT_ERR_NOSPACE
>    >
>    *********************************************************************************************
>    >how can i fix this ??
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>