[Bug 1965796] [NEW] missing device-tree fixups

[Heinrich Schuchardt]

Public bug reported:

When U-Boot loads a device-tree it makes fixups like adjusting the
memory size before booting into Linux. When GRUB loads a device-tree
these fixups are missing. On RISC-V the Linux kernel expects the
property /chosen/boot-hartidproperty in the device-tree which is set
during fixups.

There are two solutions to this:

Either always load the device-tree in U-Boot or call the
EFI_DT_FIXUP_PROTOCOL implemented in U-Boot. Calling the protocol seems
to be the better solution.

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: fr-2120 riscv64

** Tags added: riscv64

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https://bugs.launchpad.net/bugs/1965796

Title:
  missing device-tree fixups

Status in grub2 package in Ubuntu:
  New

Bug description:
  When U-Boot loads a device-tree it makes fixups like adjusting the
  memory size before booting into Linux. When GRUB loads a device-tree
  these fixups are missing. On RISC-V the Linux kernel expects the
  property /chosen/boot-hartidproperty in the device-tree which is set
  during fixups.

  There are two solutions to this:

  Either always load the device-tree in U-Boot or call the
  EFI_DT_FIXUP_PROTOCOL implemented in U-Boot. Calling the protocol
  seems to be the better solution.

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