linux-kernel - [PATCH v3 3/7] dt-bindings: PCI: mvebu: Add orion5x compatible

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Date:   Mon,  5 Sep 2022 21:23:06 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Russell King <linux@...linux.org.uk>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Mauri Sandberg <maukka@....kapsi.fi>
Cc:     linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v3 3/7] dt-bindings: PCI: mvebu: Add orion5x compatible

From: Mauri Sandberg <maukka@....kapsi.fi>

Add a compatible string to bindings to indicate that orion5x PCIe is
supported too. Orion requires additional bindings for config space
registers.

Signed-off-by: Mauri Sandberg <maukka@....kapsi.fi>
Signed-off-by: Pali Rohár <pali@...nel.org>
---
Changes in v3:
* Add more detailed information about MMIO registers
---
 Documentation/devicetree/bindings/pci/mvebu-pci.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
index 8f0bca42113f..d8d6afc6376a 100644
--- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt
+++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
@@ -7,6 +7,7 @@ Mandatory properties:
     marvell,armada-xp-pcie
     marvell,dove-pcie
     marvell,kirkwood-pcie
+    marvell,orion5x-pcie
 - #address-cells, set to <3>
 - #size-cells, set to <2>
 - #interrupt-cells, set to <1>
@@ -60,7 +61,8 @@ PCIe interface, having the following mandatory properties:
 - reg: used only for interrupt mapping, so only the first four bytes
   are used to refer to the correct bus number and device number.
 - assigned-addresses: reference to the MMIO registers used to control
-  this PCIe interface.
+  this PCIe interface. first value controls internal registers and
+  second value (Orion-specific) controls config space registers.
 - clocks: the clock associated to this PCIe interface
 - marvell,pcie-port: the physical PCIe port number
 - status: either "disabled" or "okay"
-- 
2.20.1