From 7445094c7cfde396f2c2dd49599f357be86c35ac Mon Sep 17 00:00:00 2001 From: Dasnavis Sabiya Date: Fri, 15 Mar 2024 17:18:20 +0530 Subject: arm64: dts: ti: k3-am69-sk: Update Serdes0 to support Multilink PCIe configuration AM69-SK has a 2 Lane PCIe M.2 Key M PCIe instance (PCIe1) and a 1 Lane PCIe M.2 Key E PCIe instance (PCIe3), both of which are interfaced via a shared Serdes instance namely Serdes0. Update the Serdes0 link to enable Multilink PCIe configuration. Signed-off-by: Dasnavis Sabiya Reviewed-by: Siddharth Vadapalli --- arch/arm64/boot/dts/ti/k3-am69-sk.dts | 21 ++++++++++++++------- 1 file changed, 14 insertions(+), 7 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts index c23e827b168c..444bb05c11d8 100644 --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts @@ -728,12 +728,19 @@ &serdes0 { status = "okay"; - serdes0_pcie_link: phy@0 { + serdes0_pcie_link1: phy@0 { reg = <0>; - cdns,num-lanes = <3>; + cdns,num-lanes = <2>; #phy-cells = <0>; cdns,phy-type = ; - resets = <&serdes_wiz0 1>, <&serdes_wiz0 2>, <&serdes_wiz0 3>; + resets = <&serdes_wiz0 1>, <&serdes_wiz0 2>; + }; + serdes0_pcie_link2: phy@2 { + reg = <2>; + cdns,num-lanes = <1>; + #phy-cells = <0>; + cdns,phy-type = ; + resets = <&serdes_wiz0 3>; }; serdes0_usb_link: phy@3 { reg = <3>; @@ -775,14 +782,14 @@ &pcie1_rc { status = "okay"; reset-gpios = <&exp1 5 GPIO_ACTIVE_HIGH>; - phys = <&serdes0_pcie_link>; + phys = <&serdes0_pcie_link1>; phy-names = "pcie-phy"; num-lanes = <2>; }; &pcie1_ep { status = "disabled"; - phys = <&serdes0_pcie_link>; + phys = <&serdes0_pcie_link1>; phy-names = "pcie-phy"; num-lanes = <2>; }; @@ -790,14 +797,14 @@ &pcie3_rc { status = "okay"; reset-gpios = <&exp1 6 GPIO_ACTIVE_HIGH>; - phys = <&serdes0_pcie_link>; + phys = <&serdes0_pcie_link2>; phy-names = "pcie-phy"; num-lanes = <1>; }; &pcie3_ep { status = "disabled"; - phys = <&serdes0_pcie_link>; + phys = <&serdes0_pcie_link2>; phy-names = "pcie-phy"; num-lanes = <1>; }; -- cgit v1.2.3