[edk2-devel] [PATCH v3 0/7] RPi4: Enable ACPI PCIe conduit

[Samer El-Haj-Mahmoud]

+Jared to review/test the series with NetBSD 10, which supports the DEN0115 interface (https://www.netbsd.org/changes/changes-10.0.html#port-evbarm)



> -----Original Message-----
> From: Jeremy Linton <jeremy.linton at arm.com>
> Sent: Friday, August 20, 2021 12:16 AM
> To: devel at edk2.groups.io
> Cc: pete at akeo.ie; ardb+tianocore at kernel.org; Andrei Warkentin
> (awarkentin at vmware.com) <awarkentin at vmware.com>; Sunny Wang
> <Sunny.Wang at arm.com>; Samer El-Haj-Mahmoud <Samer.El-Haj-
> Mahmoud at arm.com>; Jeremy Linton <Jeremy.Linton at arm.com>
> Subject: [PATCH v3 0/7] RPi4: Enable ACPI PCIe conduit
>
> 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.
>
> v2->v3:
>     Remove ACPI0004 container around PCI root bridge along with some
>         whitespace/tweaks to the Pci.asl file.
>     Add Linux quirk _DSD patch at the end.
>
> 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 (7):
>   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: Add Linux quirk support
>
>  Platform/RaspberryPi/AcpiTables/AcpiTables.inf     |   4 +
>  Platform/RaspberryPi/AcpiTables/Dsdt.asl           |   3 -
>  Platform/RaspberryPi/AcpiTables/Pci.asl            | 168
> +++++++++++++++++++++
>  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, 323 insertions(+), 28 deletions(-)
>  create mode 100644 Platform/RaspberryPi/AcpiTables/Pci.asl
>
> --
> 2.13.7

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