Public bug reported:

This is a cherry-pick of
https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2072675
from jammy to focal.

SRU Justification:

[Impact]
This is a cherry-pick fix from upstream to Add support for BF2 eMMC HW reset

[Fix]
BLueField eMMC RST_N register is implemented as secure, thus the default 
hw_reset() implementation won't work. This patch provides BlueField specific 
hw_reset() which send SMC call to ATF to update the same RST_N register.

[Test Case]
Same functionality and testing as on BlueField-1/2.

[Regression Potential]
Same behavior from user perspective.

** Affects: linux-bluefield (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2089455

Title:
  BF2: Add support for eMMC HW reset

Status in linux-bluefield package in Ubuntu:
  New

Bug description:
  This is a cherry-pick of
  https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2072675
  from jammy to focal.

  SRU Justification:

  [Impact]
  This is a cherry-pick fix from upstream to Add support for BF2 eMMC HW reset

  [Fix]
  BLueField eMMC RST_N register is implemented as secure, thus the default 
hw_reset() implementation won't work. This patch provides BlueField specific 
hw_reset() which send SMC call to ATF to update the same RST_N register.

  [Test Case]
  Same functionality and testing as on BlueField-1/2.

  [Regression Potential]
  Same behavior from user perspective.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-bluefield/+bug/2089455/+subscriptions


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