Determining Load Addresses

Determining Load Addresses

[Kenny Koller]

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I'm trying to piece together the various load addresses used in the boot
sequence. I have built core-image-minimal for a Beaglebone. How can I
determine which load address and entry point is used when mkimage is called
for the kernel? Should I dig in to the recipe? Search some log files? I've
tried a few difference things without results.

Thanks.

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Re: Determining Load Addresses

[Leonardo Sandoval]

On Wed, 2017-07-12 at 05:23 +0000, Kenny Koller wrote:
> I'm trying to piece together the various load addresses used in the
> boot sequence. I have built core-image-minimal for a Beaglebone. How
> can I determine which load address and entry point is used when
> mkimage is called for the kernel? Should I dig in to the recipe?
> Search some log files? I've tried a few difference things without
> results.
> 
> 
This type of info usually comes in the machine definition, thus look
there. Diong a simple git grep ^UBOOT shows the following related
variables

meta/conf/documentation.conf:UBOOT_ENTRYPOINT[doc] = "Specifies the
entry point for the U-Boot image."
meta/conf/documentation.conf:UBOOT_LOADADDRESS[doc] = "Specifies the
load address for the U-Boot image."



> Thanks.
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Re: Determining Load Addresses

[Robert Berger]

Hi,

On 2017-07-12 08:23, Kenny Koller wrote:
> I'm trying to piece together the various load addresses used in the boot 
> sequence. I have built core-image-minimal for a Beaglebone. How can I 
> determine which load address and entry point is used when mkimage is 
> called for the kernel? Should I dig in to the recipe? Search some log 
> files? I've tried a few difference things without results.

You don't need to bake a board specific address into uImage.

Like this you could create an uImage without a baked in address. Check 
here between lines 98 and 112

https://github.com/RobertBerger/meta-mainline/blob/pyro-training-v4.9.x/multi-v7-ml/conf/machine/multi-v7-ml.conf#L98


> 
> Thanks.
> 
>