linux-kernel - [PATCH v2] arm64: dts: ti: k3-j721e-common-proc-board: Enable PCIe + QSGMII multilink configuration

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Date:   Wed, 2 Feb 2022 10:09:44 +0530
From:   Aswath Govindraju <a-govindraju@...com>
To:     unlisted-recipients:; (no To-header on input)
CC:     Aswath Govindraju <a-govindraju@...com>,
        Swapnil Jakhade <sjakhade@...ence.com>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] arm64: dts: ti: k3-j721e-common-proc-board: Enable PCIe + QSGMII multilink configuration

From: Swapnil Jakhade <sjakhade@...ence.com>

The zeroth instance of SerDes on J721E common processor board will be
shared between PCIe and QSGMII. Therefore, add support for enabling this.

Signed-off-by: Swapnil Jakhade <sjakhade@...ence.com>
Signed-off-by: Aswath Govindraju <a-govindraju@...com>
---

changes since v1:
- Fixed the commit message.

 .../boot/dts/ti/k3-j721e-common-proc-board.dts    | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index 2d7596911b27..157d86dc2824 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -431,7 +431,7 @@
 };
 
 &serdes_ln_ctrl {
-	idle-states = <J721E_SERDES0_LANE0_PCIE0_LANE0>, <J721E_SERDES0_LANE1_PCIE0_LANE1>,
+	idle-states = <J721E_SERDES0_LANE0_PCIE0_LANE0>, <J721E_SERDES0_LANE1_QSGMII_LANE2>,
 		      <J721E_SERDES1_LANE0_PCIE1_LANE0>, <J721E_SERDES1_LANE1_PCIE1_LANE1>,
 		      <J721E_SERDES2_LANE0_PCIE2_LANE0>, <J721E_SERDES2_LANE1_PCIE2_LANE1>,
 		      <J721E_SERDES3_LANE0_USB3_0_SWAP>, <J721E_SERDES3_LANE1_USB3_0>,
@@ -757,8 +757,8 @@
 };
 
 &serdes0 {
-	assigned-clocks = <&serdes0 CDNS_SIERRA_PLL_CMNLC>;
-	assigned-clock-parents = <&wiz0_pll1_refclk>;
+	assigned-clocks = <&serdes0 CDNS_SIERRA_PLL_CMNLC>, <&serdes0 CDNS_SIERRA_PLL_CMNLC1>;
+	assigned-clock-parents = <&wiz0_pll1_refclk>, <&wiz0_pll1_refclk>;
 
 	serdes0_pcie_link: phy@0 {
 		reg = <0>;
@@ -767,6 +767,15 @@
 		cdns,phy-type = <PHY_TYPE_PCIE>;
 		resets = <&serdes_wiz0 1>;
 	};
+
+	serdes0_qsgmii_link: phy@1 {
+		reg = <1>;
+		cdns,num-lanes = <1>;
+		#phy-cells = <0>;
+		cdns,phy-type = <PHY_TYPE_QSGMII>;
+		resets = <&serdes_wiz0 2>;
+	};
+
 };
 
 &serdes1 {
-- 
2.17.1