[meta-xilinx] How to make uImage for zynqmp

[Nathan Rossi]

On Mon, Oct 10, 2016 at 8:00 PM, Mike Looijmans <mike.looijmans at topic.nl> wrote:
> On 10-10-16 11:44, Cai, Chuntian (GE Transportation) wrote:
>>
>> Hi Nathan
>>
>> I am not aware of that uImage is obsoleted for arm64, could you tell me
>> how to use booti command to boot linux?
>>
>> What address and how to set dtb and rootfs?
>
>
> Ah, now we're getting to the real question.
>
> Just looking at the u-boot source code reveils how it's done:
>
> https://github.com/Xilinx/u-boot-xlnx/blob/master/include/configs/xilinx_zynqmp.h#L189
>
> booti $kernel_addr - $fdt_addr
>

Yep, works the same as the other boot* style commands. The following
addresses should work for zynqmp:

tftpboot 0x80000 Image
tftpboot 0x6000000 core-image-minimal-ep108-zynqmp.cpio.gz.u-boot
tftpboot 0x7000000 Image-zynqmp-ep108.dtb
booti 0x80000 0x6000000 0x7000000

Regards,
Nathan

>
>
>>
>
> Kind regards,
>
> Mike Looijmans
> System Expert
>
> TOPIC Products
> Materiaalweg 4, NL-5681 RJ Best
> Postbus 440, NL-5680 AK Best
> Telefoon: +31 (0) 499 33 69 79
> E-mail: mike.looijmans at topicproducts.com
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> Please consider the environment before printing this e-mail
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>
>
>
>
> -----Original Message-----
>>
>> From: Nathan Rossi [mailto:nathan at nathanrossi.com]
>> Sent: Monday, October 10, 2016 5:31 PM
>> To: Cai, Chuntian (GE Transportation)
>> Cc: meta-xilinx at yoctoproject.org; Mike Looijmans
>> Subject: EXT: Re: [meta-xilinx] How to make uImage for zynqmp
>>
>> On Mon, Oct 10, 2016 at 3:46 PM, Mike Looijmans <mike.looijmans at topic.nl>
>> wrote:
>>>
>>> On 09-10-16 03:20, Cai, Chuntian (GE Transportation) wrote:
>>>
>>>> I using bitbake build Linux system for zcu102 board.
>>>>
>>>> I issue bitbake core-image-x11 , then I can found Image file in the
>>>> deploy folder, But I could not find uImage, and I want use uImage
>>
>>
>> uImage is not a valid target for aarch64/arm64 in the kernel (like it is
>> for arm). This is because "uImage" is actually shorthand for u-boot wrapped
>> zImage. And arm64 does not have support for zImage, thus also does not have
>> a uImage target.
>>
>> (arm targets)
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm/Makefile?id=refs/tags/v4.8#n365
>> (arm64 targets)
>>
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/Makefile?id=refs/tags/v4.8#n135
>>
>> ---
>>
>> A good question is why do you want to use uImage? If you are not aware it
>> is possible to boot a linux "Image" with the U-Boot "booti"
>> command.
>>
>> However it is possible to wrap the kernel image with mkimage (or a FIT
>> blob if you are prepared to configure the image tree). For wrapping with
>> mkimage the command you will need is similar to:
>>
>> mkimage -A arm64 -O linux -T kernel -C none -a 0x80000 -e 0x80000 -d Image
>> Image.ub
>>
>> Also if you need mkimage, run the command using the mkimage built by OE
>> from the sysroot relative to the tmp/deploy/images/<machine>/ directory of
>> your build (assuming you are on a x86_64 host):
>>
>> ../../../sysroots/x86_64-linux/usr/bin/mkimage ...
>>
>>>>
>>>>
>>>> Could you tell me how to build uImage rather than Image
>>>
>>>
>>>
>>> Just setting KERNEL_IMAGETYPE="uImage" in the kernel recipe or machine
>>> config would do that.
>>>
>>> I think you can even specify multiple types in there.
>>
>>
>> You can, KERNEL_IMAGETYPES += "<extra ones>"
>>
>> Regards,
>> Nathan
>>
>>>
>>>
>>>
>>> Kind regards,
>>>
>>> Mike Looijmans
>>> System Expert
>>>
>>> TOPIC Products
>>> Materiaalweg 4, NL-5681 RJ Best
>>> Postbus 440, NL-5680 AK Best
>>> Telefoon: +31 (0) 499 33 69 79
>>> E-mail: mike.looijmans at topicproducts.com
>>> Website: www.topicproducts.com
>>>
>>> Please consider the environment before printing this e-mail
>>>
>>>
>>>
>>>
>>>
>>> --
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>