[edk2-devel] [PATCH v2 0/6] RPi4: Enable ACPI PCIe conduit

[Jeremy Linton]

A new Arm standard DEN0115A specifies how
platforms that don't have standard ECAM can
use the firmware to handle config read/write
operations. This is mostly implemented in TFA
but UEFI needs to assure that there is a
description of the root complex in the ACPI
namespace.

This set adds that description based on
a new menu item which toggles between XHCI
platform description and PCIe via a BDS
menu selection on the RPi4. The CM4 is really
the platform that needs this as it has a PCIe
slot. On that platform PCIe is enabled by default.

v1->v2:
    Use global shared interrupts in PCI PRT
        which is a pretty significant
        simplification.
    Modify bus max to use the secondary side
        of the root port for enforcing device
        limits
    Various other AML cleanups per Ard (drop
        redundant _DMA, bump UID to make it
        unique, etc)
    Break link status move into its own patch
    MADT->MCFG typos in various comments
    Commit message tweaking
		
Jeremy Linton (6):
  Platform/RaspberryPi: Add XHCI/PCI selection menu
  Platform/RaspberryPi: Break XHCI into its own SSDT
  Platform/RaspberryPi: Add PCIe SSDT
  Silicon/Broadcom/Bcm27xx: Relax PCIe device restriction
  Silicon/Broadcom/Bcm27xx: Move linkup check into the cfg accessor
  Platform/RaspberryPi: Enable NVMe boot on CM4

 Platform/RaspberryPi/AcpiTables/AcpiTables.inf     |   4 +
 Platform/RaspberryPi/AcpiTables/Dsdt.asl           |   3 -
 Platform/RaspberryPi/AcpiTables/Pci.asl            | 209 +++++++++++++++++++++
 Platform/RaspberryPi/AcpiTables/Xhci.asl           |  35 ++--
 Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c |  56 ++++++
 .../RaspberryPi/Drivers/ConfigDxe/ConfigDxe.inf    |   1 +
 .../RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.uni |   5 +
 .../RaspberryPi/Drivers/ConfigDxe/ConfigDxeHii.vfr |  17 ++
 Platform/RaspberryPi/Include/ConfigVars.h          |   4 +
 Platform/RaspberryPi/RPi3/RPi3.dsc                 |   6 +
 Platform/RaspberryPi/RPi4/RPi4.dsc                 |  13 ++
 Platform/RaspberryPi/RPi4/RPi4.fdf                 |   5 +
 Platform/RaspberryPi/RaspberryPi.dec               |   1 +
 .../Bcm2711PciHostBridgeLibConstructor.c           |   5 -
 .../Library/Bcm2711PciSegmentLib/PciSegmentLib.c   |  28 ++-
 15 files changed, 364 insertions(+), 28 deletions(-)
 create mode 100644 Platform/RaspberryPi/AcpiTables/Pci.asl

-- 
2.13.7



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