[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20250401091713.2765724-3-maz@kernel.org>
Date: Tue, 1 Apr 2025 10:17:02 +0100
From: Marc Zyngier <maz@...nel.org>
To: linux-arm-kernel@...ts.infradead.org,
linux-pci@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
asahi@...ts.linux.dev
Cc: Alyssa Rosenzweig <alyssa@...enzweig.io>,
Janne Grunau <j@...nau.net>,
Hector Martin <marcan@...can.st>,
Sven Peter <sven@...npeter.dev>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Lorenzo Pieralisi <lpieralisi@...nel.org>,
Krzysztof WilczyĆski <kw@...ux.com>,
Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Mark Kettenis <mark.kettenis@...all.nl>
Subject: [PATCH v3 02/13] dt-bindings: pci: apple,pcie: Add t6020 compatible string
From: Alyssa Rosenzweig <alyssa@...enzweig.io>
t6020 adds some register ranges compared to t8103, so requires
a new compatible as well as the new PHY registers.
Thanks to Mark and Rob for their helpful suggestions in updating
the binding.
Suggested-by: Mark Kettenis <mark.kettenis@...all.nl>
Suggested-by: Rob Herring <robh@...nel.org>
Reviewed-by: Rob Herring (Arm) <robh@...nel.org>
Acked-by: Alyssa Rosenzweig <alyssa@...enzweig.io>
Tested-by: Janne Grunau <j@...nau.net>
Signed-off-by: Alyssa Rosenzweig <alyssa@...enzweig.io>
[maz: added PHY registers, constraints]
Signed-off-by: Marc Zyngier <maz@...nel.org>
---
.../devicetree/bindings/pci/apple,pcie.yaml | 33 +++++++++++++++----
1 file changed, 26 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/pci/apple,pcie.yaml b/Documentation/devicetree/bindings/pci/apple,pcie.yaml
index c8775f9cb0713..c0852be04f6de 100644
--- a/Documentation/devicetree/bindings/pci/apple,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/apple,pcie.yaml
@@ -17,6 +17,10 @@ description: |
implements its root ports. But the ATU found on most DesignWare
PCIe host bridges is absent.
+ On systems derived from T602x, the PHY registers are in a region
+ separate from the port registers. In that case, there is one PHY
+ register range per port register range.
+
All root ports share a single ECAM space, but separate GPIOs are
used to take the PCI devices on those ports out of reset. Therefore
the standard "reset-gpios" and "max-link-speed" properties appear on
@@ -30,16 +34,18 @@ description: |
properties:
compatible:
- items:
- - enum:
- - apple,t8103-pcie
- - apple,t8112-pcie
- - apple,t6000-pcie
- - const: apple,pcie
+ oneOf:
+ - items:
+ - enum:
+ - apple,t8103-pcie
+ - apple,t8112-pcie
+ - apple,t6000-pcie
+ - const: apple,pcie
+ - const: apple,t6020-pcie
reg:
minItems: 3
- maxItems: 6
+ maxItems: 10
reg-names:
minItems: 3
@@ -50,6 +56,10 @@ properties:
- const: port1
- const: port2
- const: port3
+ - const: phy0
+ - const: phy1
+ - const: phy2
+ - const: phy3
ranges:
minItems: 2
@@ -98,6 +108,15 @@ allOf:
maxItems: 5
interrupts:
maxItems: 3
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: apple,t6020-pcie
+ then:
+ properties:
+ reg-names:
+ minItems: 10
examples:
- |
--
2.39.2
Powered by blists - more mailing lists