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
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.looijm...@topicproducts.com
Website: www.topicproducts.com
Please consider the environment before printing this e-mail
-----Original Message-----
From: Nathan Rossi [mailto:nat...@nathanrossi.com]
Sent: Monday, October 10, 2016 5:31 PM
To: Cai, Chuntian (GE Transportation)
Cc: meta-xilinx@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.looijm...@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.looijm...@topicproducts.com
Website: www.topicproducts.com
Please consider the environment before printing this e-mail
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