linux-kernel - [PATCH 1/1] dt-bindings: pci: armada: add system controller and MAC reset bit

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Message-ID: <20241112065229.753466-1-jpatel2@marvell.com>
Date: Mon, 11 Nov 2024 22:52:29 -0800
From: Jenishkumar Maheshbhai Patel <jpatel2@...vell.com>
To: <lpieralisi@...nel.org>, <thomas.petazzoni@...tlin.com>, <kw@...ux.com>,
        <manivannan.sadhasivam@...aro.org>, <robh@...nel.org>,
        <bhelgaas@...gle.com>, <linux-pci@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
CC: <salee@...vell.com>, <dingwei@...vell.com>,
        Jenishkumar Maheshbhai Patel
	<jpatel2@...vell.com>
Subject: [PATCH 1/1] dt-bindings: pci: armada: add system controller and MAC reset bit

Adding Armada 7K/8K controller bindings optional system-controller
and mac-reset-bit-mask needed for linkdown procedure.

Signed-off-by: Jenishkumar Maheshbhai Patel <jpatel2@...vell.com>
---
 Documentation/devicetree/bindings/pci/pci-armada8k.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/pci-armada8k.txt b/Documentation/devicetree/bindings/pci/pci-armada8k.txt
index ff25a134befa..a177b971a9a0 100644
--- a/Documentation/devicetree/bindings/pci/pci-armada8k.txt
+++ b/Documentation/devicetree/bindings/pci/pci-armada8k.txt
@@ -24,6 +24,10 @@ Optional properties:
 - phy-names: names of the PHYs corresponding to the number of lanes.
 	Must be "cp0-pcie0-x4-lane0-phy", "cp0-pcie0-x4-lane1-phy" for
 	2 PHYs.
+- marvell,system-controller: address of system controller needed
+	in order to reset MAC used by link-down handle
+- marvell,mac-reset-bit-mask: MAC reset bit of system controller
+	needed in order to reset MAC used by link-down handle
 
 Example:
 
@@ -45,4 +49,6 @@ Example:
 		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
 		num-lanes = <1>;
 		clocks = <&cpm_syscon0 1 13>;
+		marvell,system-controller = <&CP11X_LABEL(syscon0)>;
+		marvell,mac-reset-bit-mask = <CP11X_PCIEx_MAC_RESET_BIT_MASK(1)>;
 	};
-- 
2.25.1