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Message-Id: <20241031080655.3879139-11-hongxing.zhu@nxp.com>
Date: Thu, 31 Oct 2024 16:06:55 +0800
From: Richard Zhu <hongxing.zhu@....com>
To: l.stach@...gutronix.de,
	bhelgaas@...gle.com,
	lpieralisi@...nel.org,
	kw@...ux.com,
	manivannan.sadhasivam@...aro.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	shawnguo@...nel.org,
	frank.li@....com,
	s.hauer@...gutronix.de,
	festevam@...il.com
Cc: imx@...ts.linux.dev,
	kernel@...gutronix.de,
	linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Richard Zhu <hongxing.zhu@....com>,
	Frank Li <Frank.Li@....com>
Subject: [PATCH v5 10/10] arm64: dts: imx95: Add ref clock for i.MX95 PCIe

Add ref clock for i.MX95 PCIe here, when the internal PLL is used as
PCIe reference clock.

Signed-off-by: Richard Zhu <hongxing.zhu@....com>
Reviewed-by: Frank Li <Frank.Li@....com>
---
 arch/arm64/boot/dts/freescale/imx95.dtsi | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx95.dtsi b/arch/arm64/boot/dts/freescale/imx95.dtsi
index 03661e76550f..5cb504b5f851 100644
--- a/arch/arm64/boot/dts/freescale/imx95.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx95.dtsi
@@ -1473,6 +1473,14 @@ smmu: iommu@...d0000 {
 			};
 		};
 
+		hsio_blk_ctl: syscon@...100c0 {
+			compatible = "nxp,imx95-hsio-blk-ctl", "syscon";
+			reg = <0x0 0x4c0100c0 0x0 0x4>;
+			#clock-cells = <1>;
+			clocks = <&dummy>;
+			power-domains = <&scmi_devpd IMX95_PD_HSIO_TOP>;
+		};
+
 		pcie0: pcie@...00000 {
 			compatible = "fsl,imx95-pcie";
 			reg = <0 0x4c300000 0 0x10000>,
@@ -1500,8 +1508,9 @@ pcie0: pcie@...00000 {
 			clocks = <&scmi_clk IMX95_CLK_HSIO>,
 				 <&scmi_clk IMX95_CLK_HSIOPLL>,
 				 <&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
-				 <&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
-			clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux";
+				 <&scmi_clk IMX95_CLK_HSIOPCIEAUX>,
+				 <&hsio_blk_ctl 0>;
+			clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "ref";
 			assigned-clocks =<&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
 					 <&scmi_clk IMX95_CLK_HSIOPLL>,
 					 <&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
@@ -1528,8 +1537,9 @@ pcie0_ep: pcie-ep@...00000 {
 			clocks = <&scmi_clk IMX95_CLK_HSIO>,
 				 <&scmi_clk IMX95_CLK_HSIOPLL>,
 				 <&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
-				 <&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
-			clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux";
+				 <&scmi_clk IMX95_CLK_HSIOPCIEAUX>,
+				 <&hsio_blk_ctl 0>;
+			clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_aux", "ref";
 			assigned-clocks =<&scmi_clk IMX95_CLK_HSIOPLL_VCO>,
 					 <&scmi_clk IMX95_CLK_HSIOPLL>,
 					 <&scmi_clk IMX95_CLK_HSIOPCIEAUX>;
-- 
2.37.1


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