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From: Vikas N Kumar <vikas@vikaskumar.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] u-boot verifiied boot question
Date: Sun, 22 Sep 2013 15:16:40 -0400	[thread overview]
Message-ID: <523F4218.3040001@vikaskumar.org> (raw)
In-Reply-To: <523F25B4.3010909@vikaskumar.org>


Hi
I am trying to get verified boot working for the Beaglebone Black (BBB)
and have gotten the FIT image part working with  a kernel and an FDT
blob for the BBB. 

However, I am a little confused by the documentation
which says that u-boot also needs an FDT blob (with CONFIG_OF_CONTROL)
to embed the RSA public key.

I have a few questions that might not be related to each other but can
help me complete my work:

- Is this uboot FDT control blob the same as the FDT blob in the FIT
image for booting the kernel or are these 2 separate blobs pointing to
the same hardware ?

- Can the uboot FDT blob be empty in the sense that all it does is store
a public key and all the machine specific stuff is in the uboot image
itself as it is done today for the BBB ?

- Can one embed the public key in u-boot without using an FDT blob ?

Thanks
_vicash_

       reply	other threads:[~2013-09-22 19:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <523F25B4.3010909@vikaskumar.org>
2013-09-22 19:16 ` Vikas N Kumar [this message]
2013-09-22 21:26   ` [U-Boot] u-boot verifiied boot question Simon Glass

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