This allows finding the correct PCIe device when multiple devices
have the same vendor-id/device-id but differ in the class-rev register
Signed-off-by: Grant Ramsay <gramsay@enphaseenergy.com>
The interrupt-map property specifies both 32-bits values and a phandle;
update the type accordingly.
Update the definition of pcie-host-ecam-generic on qemu arm64 to match
the new type.
Signed-off-by: Rodrigo Cataldo <rodrigo.cataldo@huawei.com>
Co-authored-by: Henri Xavier <datacomos@huawei.com>
Add DTS information for qemu-virt-a53 and qemu-kvm-arm64 for PCIe
controller support. Three new bindings are required for the PCIe
controller in ECAM mode.
The DTS information was extracted from QEMU (dumpdtb) with a PCIe device
attached to the virtual machine (ivshmem)
Signed-off-by: Rodrigo Cataldo <rodrigo.cataldo@huawei.com>
Co-authored-by: Henri Xavier <datacomos@huawei.com>
Use the new PCIe core infrastructure for looking up the BDF at runtime
based on the VID/DID values.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
The BDF values can differ on the same platform, based on e.g. BIOS
configuration, and in the case of qemu the command line parameters. It's
therefore more reliable to always look up the BDF value based on the
known Vendor and Device IDs.
This patch introduces such a framework, and allows the incremental
update of PCIe drivers to start taking advantage of it.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
All in tree device drivers use some form of DEVICE_DT_GET
so we no longer need to require label properties.
Signed-off-by: Kumar Gala <galak@kernel.org>
Add bindings for a generic PCIe Controller in ECAM mode.
ECAM stands for PCI Express Enhanced Configuration Access Mechanism
where the PCIe config space is flat memory-mapped.
An optional msi-parent phandle is added to link to an optional
MSI/MSI-X Interrupt Message Translation HW component.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Add a binding to represent a PCIe bus. This way PCIe devices can be
ordered under a parent PCIe bus object and make help of DT BUS macros
for conditional code.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
