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Hector Palacios 222a91f213 libubootenv: add fall-back function to read HWID from nvmem 
The HWID is populated on the device tree by the boot loader.
This can be used as a key modifier when encrypting the U-Boot
environment. Some old U-Boot versions however, did not populate
the HWID on the device tree. When updating firmware from an
old version to a new one, the library may not be able to read
the HWID from the DT and then be unable to unencrypt the
environment.

This patch implements a fall-back function to read the HWID
directly from the nvmem node (sysfs). Implementation has been
done for ccimx6 family only, where this case of old U-Boot
can happen.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>

https://onedigi.atlassian.net/browse/DEL-8444
 		2023-04-17 08:48:52 +02:00
..
classes meta-digi: remove True option to getVar 2023-02-24 16:24:47 +01:00
conf ccmp15/ccmp13: remove rs232 device tree overlays 2023-03-07 18:14:20 +01:00
custom-licenses kirkstone migration: cosmetic, clean build warnings 2022-06-21 16:49:56 +02:00
dynamic-layers meta-digi: revert revisions to AUTOREV 2023-03-10 15:48:01 +01:00
recipes-bsp libubootenv: add fall-back function to read HWID from nvmem 2023-04-17 08:48:52 +02:00
recipes-core udev: mount.sh: force to find files in /tmp 2023-03-03 12:06:33 +01:00
recipes-digi trustfence: add function to generate a PKI tree if it doesn't exist 2023-03-21 09:41:36 +01:00
recipes-kernel ccx: fix some outdated files so implementation matches 'cctags api’ repository 2023-04-11 12:59:52 +02:00
DIGI_EULA DIGI_EULA: Update Digi EULA file. 2017-08-29 12:23:22 +02:00
DIGI_OPEN_EULA meta-digi-arm: Add end user license agreements. 2012-10-26 16:20:14 +02:00
README meta-digi: update support email address 2017-10-30 17:02:33 +01:00

README 

OpenEmbedded/Yocto BSP layer for Digi's ConnectCore platforms
=============================================================

This layer provides support for Digi's ConnnecCore platforms for use
with OpenEmbedded and/or Yocto.

This layer depends on:

git://git.yoctoproject.org/poky.git
git://git.openembedded.org/meta-openembedded.git
git://git.yoctoproject.org/meta-freescale.git

Digi's license agreements
-------------------------

All software is covered by Digi's general EULA and Digi's Open Source
EULA. To have the right to use the software in your images you need to
read and accept both EULAs at the DIGI_EULA and DIGI_OPEN_EULA files.

NXP Semiconductors' software license agreement
----------------------------------------------

Some platforms depends on libraries and packages that are covered by
NXP Semiconductors' EULA. To have the right to use those binaries in
your images you need to read and accept the EULA file in meta-freescale
Yocto layer.

Support
-------

This layer is provided 'as is' with no guarantee. However, some support
may be available from tech.support@digi.com