linux-kernel - [PATCH 4/6] ARM: dts: qcom: sdx75: Add QPIC NAND support

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Message-ID: <20250313130918.4238-5-quic_kaushalk@quicinc.com>
Date: Thu, 13 Mar 2025 18:39:16 +0530
From: Kaushal Kumar <quic_kaushalk@...cinc.com>
To: <vkoul@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <manivannan.sadhasivam@...aro.org>,
        <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <andersson@...nel.org>, <konradybcio@...nel.org>, <agross@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <dmaengine@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>,
        Kaushal Kumar <quic_kaushalk@...cinc.com>
Subject: [PATCH 4/6] ARM: dts: qcom: sdx75: Add QPIC NAND support

Add devicetree node to enable support for QPIC
NAND controller on Qualcomm SDX75 platform.
Since there is no "aon" clock in SDX75, a dummy
clock is provided.

Signed-off-by: Kaushal Kumar <quic_kaushalk@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sdx75.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdx75.dtsi b/arch/arm64/boot/dts/qcom/sdx75.dtsi
index e3a0ee661c4a..9c43b14a0594 100644
--- a/arch/arm64/boot/dts/qcom/sdx75.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdx75.dtsi
@@ -37,6 +37,12 @@
 			clock-frequency = <32764>;
 			#clock-cells = <0>;
 		};
+
+		nand_clk_dummy: nand-clk-dummy {
+			compatible = "fixed-clock";
+			clock-frequency = <32764>;
+			#clock-cells = <0>;
+		};
 	};
 
 	cpus {
@@ -894,6 +900,24 @@
 			status = "disabled";
 		};
 
+		qpic_nand: nand-controller@...8000 {
+			compatible = "qcom,sdx75-nand", "qcom,sdx55-nand";
+			reg = <0x0 0x01cc8000 0x0 0x10000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&rpmhcc RPMH_QPIC_CLK>,
+				 <&nand_clk_dummy>;
+			clock-names = "core", "aon";
+
+			dmas = <&qpic_bam 0>,
+			       <&qpic_bam 1>,
+			       <&qpic_bam 2>;
+			dma-names = "tx", "rx", "cmd";
+			iommus = <&apps_smmu 0x100 0x3>;
+			dma-coherent;
+			status = "disabled";
+		};
+
 		tcsr_mutex: hwlock@...0000 {
 			compatible = "qcom,tcsr-mutex";
 			reg = <0x0 0x01f40000 0x0 0x40000>;
-- 
2.17.1