OMAP baseline test results for v3.7-rc3

Mark Jackson mpfj-list at mimc.co.uk
Tue Nov 13 10:26:58 EST 2012


On 06/11/12 09:47, Mark Jackson wrote:
> On 06/11/12 06:16, Hiremath, Vaibhav wrote:
>>
>> Where is your DTB? Is it appended to Kernel image?
>> Can you try below sequence/commands from u-boot?
>>
>>
>> mmc rescan 0
>> fatload mmc 0 80000000 am335x-bone.dtb
>> fatload mmc 0 81000000 uImage
>> setenv bootargs console=ttyO0,115200n8 mem=256M root=/dev/mmcblk0p2 rw noinitrd rootfstype=ext3 rootwait earlyprink=serial
>> sendln 'bootm 81000000 - 80000000'
>>
>>
>>
>> To build DTB files, use "make dtbs" command on your kernel home directory.
> 
> That works ... great !!
> 
> But now I'm confused, since I thought the DTB was appended to the uImage file.
> 
> I have the following in my .config:-
> 
> ARM_ATAG_DTB_COMPAT=y
> ARM_APPENDED_DTB=y
> ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
> 
> And then I create my uImage file using:-
> 
> $ make -j 8 ARCH=arm CROSS_COMPILE=arm-linux- uImage
> $ make -j 8 ARCH=arm CROSS_COMPILE=arm-linux- am335x-bone.dtb
> $ cat arch/arm/boot/uImage arch/arm/boot/am335x-bone.dtb > arch/arm/boot/uImage-dtb.am335x-bone
> $ cp arch/arm/boot/uImage-dtb.am335x-bone /media/boot/uImage
> 
> Do you now have to load the DTB as a separate file ?
> 
> Or should the appended DTB still work ?

Any update on this ?

Cheers
Mark J.




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