Reviewed-By: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com>
> -----Original Message-----
> From: Jeremy Linton <jeremy.lin...@arm.com>
> Sent: Friday, August 20, 2021 12:16 AM
> To: devel@edk2.groups.io
> Cc: p...@akeo.ie; ardb+tianoc...@kernel.org; Andrei Warkentin
> (awarken...@vmware.com) <awarken...@vmware.com>; Sunny Wang
> <sunny.w...@arm.com>; Samer El-Haj-Mahmoud <Samer.El-Haj-
> mahm...@arm.com>; Jeremy Linton <jeremy.lin...@arm.com>
> Subject: [PATCH v3 7/7] Platform/RaspberryPi: Add Linux quirk support
>
> Linux, for the time being has refused to support the Arm
> standard SMCCC for PCIe configuration. Instead they
> want to continue to maintain per device "quirks".
>
> As the RPI isn't really ECAM this is a bit more
> involved because the MCFG can't really describe
> the root port+config registers situation. Further
> platforms which support the SMCCC shouldn't have
> a MCFG, so we need an additional way to tell linux
> what it needs to know about this platform.
>
> Signed-off-by: Jeremy Linton <jeremy.lin...@arm.com>
> ---
> Platform/RaspberryPi/AcpiTables/Pci.asl | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Platform/RaspberryPi/AcpiTables/Pci.asl
> b/Platform/RaspberryPi/AcpiTables/Pci.asl
> index dc2bd7bc9e..50fe2cbdf2 100644
> --- a/Platform/RaspberryPi/AcpiTables/Pci.asl
> +++ b/Platform/RaspberryPi/AcpiTables/Pci.asl
> @@ -62,6 +62,13 @@ DefinitionBlock (__FILE__, "SSDT", 5, "RPIFDN",
> "RPI4PCIE", 2)
> Package (4) { 0x0000FFFF, 3, zero, 178 }
> })
>
> + Name (_DSD, Package () {
> + ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
> + Package () {
> + Package () { "linux-ecam-quirk-id", "bcm2711" },
> + }
> + })
> +
> // Root complex resources
> Method (_CRS, 0, Serialized) {
> Name (RBUF, ResourceTemplate () {
> --
> 2.13.7
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