Re: [PATCH net-next 12/12] arm64: dts: qcom: qcs6490-rb3gen2: enable TC9564 with a single QCS8081 phy

From: Alex Elder

Date: Tue May 05 2026 - 12:49:45 EST


On 5/5/26 11:42 AM, Mohd Ayaan Anwar wrote:
Hi Alex,
On Fri, May 01, 2026 at 10:54:20AM -0500, Alex Elder wrote:
From: Daniel Thompson <daniel@xxxxxxxxxxxx>

The QCS6490 RB3Gen2 includes a Toshiba TC9564 (a.k.a. Qualcomm QPS615).
TC9564 is an twin Ethernet-AVB/TSN bridge with an integrated PCIe switch.

There are multiple builds of RB3Gen2 with components included/excluded.
That means whether or not there is a phy attached to eMAC0 depends on
the exact board. However all versions include a TC9564 combined with a
single QCS8081 attached to eMAC1.

Add properties to the existing PCI nodes to describe how the TC9564 and
QCS8081 are connected to each other (and to the host SoC).

(Note: "pci1179,0220" is documented in the "net/toshiba,tc956x-dwmac.yaml"
binding, but checkpatch.pl doesn't recognize that.)

Co-developed-by: Alex Elder <elder@xxxxxxxxxxxx>
Signed-off-by: Alex Elder <elder@xxxxxxxxxxxx>
Signed-off-by: Daniel Thompson <daniel@xxxxxxxxxxxx>

There's a minor typo in the PHY name - QCS8081 instead of QCA8081.

OK, I'll fix that too. Thanks a lot Ayaan.

-Alex


Ayaan