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    • Andrei Warkentin's avatar
      Platform/RaspberryPi: default DisplayDxe to just native mode · bfa32ac7
      Andrei Warkentin authored
      
      
      The scaled resolutions are useful, but are not the default expected
      by most users. Linux and BSDs don't set preferred resolution in
      their OS loader, so when booting via setup UI, the OS is left
      running at 800x600, not the native resolution. This looks crummy.
      
      Signed-off-by: default avatarAndrei Warkentin <andrey.warkentin@gmail.com>
      Reviewed-by: default avatarPete Batard <pete@akeo.ie>
      Tested-by: default avatarPete Batard <pete@akeo.ie>
      bfa32ac7
    • Andrei Warkentin's avatar
      RPi: allow selecting DT-only mode · d4926396
      Andrei Warkentin authored
      
      
      Today the Pies can be booted in a way where only ACPI is exposed,
      or both ACPI and DT are exposed.
      
      This adds one more mode - DT only, no ACPI. The target audience
      is developers. When both are exposed, it's up to the OS to decide
      which gets used, and that choice can differ between OSes,
      
      Note: this does _not_ change defaults. Pi 3 still defaults to
      ACPI + DT, while Pi 4 still defaults to ACPI only.
      
      We don't really want to remove DT + ACPI mode - it is the default
      on Pi 3, and removing it is bound to just annoy users - WoA and
      NetBSD (voa UEFI) on Pi 3 only work with ACPI, while everything
      else (Linux, FreeBSD) only work with DT. I'd make an analogy of
      MPS and ACPI being exposed for the longest time ever together on
      PCs.
      
      Testing: OpenBSD on Pi 4 with DT-only and ACPI-only boots.
      
      Signed-off-by: default avatarAndrei Warkentin <andrey.warkentin@gmail.com>
      Reviewed-by: default avatarPete Batard <pete@akeo.ie>
      d4926396
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