linux-kernel - [PATCH 3/3] arm64: dts: Enabled MHI device over PCIe

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Date:   Thu,  6 Aug 2020 14:54:38 +0530
From:   Gokul Sriram Palanisamy <gokulsri@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        sboyd@...eaurora.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     sricharan@...eaurora.org, gokulsri@...eaurora.org
Subject: [PATCH 3/3] arm64: dts: Enabled MHI device over PCIe

Enabled MHI device support over PCIe and added memory
reservation required for MHI enabled QCN9000 PCIe card.

Signed-off-by: Gokul Sriram Palanisamy <gokulsri@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi | 58 ++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/ipq8074.dtsi      |  8 +++++
 2 files changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi b/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
index 0827055..d201a7b 100644
--- a/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq8074-hk10.dtsi
@@ -24,6 +24,22 @@
 		device_type = "memory";
 		reg = <0x0 0x40000000 0x0 0x20000000>;
 	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		qcn9000_pcie0: memory@...00000 {
+			no-map;
+			reg = <0x0 0x50f00000 0x0 0x03700000>;
+		};
+
+		qcn9000_pcie1: memory@...00000 {
+			no-map;
+			reg = <0x0 0x54600000 0x0 0x03700000>;
+		};
+	};
 };
 
 &blsp1_spi1 {
@@ -74,3 +90,45 @@
 		nand-bus-width = <8>;
 	};
 };
+
+&pcie0_rp {
+	status = "ok";
+
+	mhi_0: qcom,mhi@0 {
+		reg = <0 0 0 0 0 >;
+		qrtr_instance_id = <0x20>;
+		#address-cells = <0x2>;
+		#size-cells = <0x2>;
+
+		base-addr = <0x50f00000>;
+		qcom,caldb-addr = <0x53E00000>;
+		qrtr_node_id = <0x27>;
+		mhi,max-channels = <30>;
+		mhi,timeout = <10000>;
+
+		pcie0_mhi: pcie0_mhi {
+			status = "ok";
+		};
+	};
+};
+
+&pcie1_rp {
+	status = "ok";
+
+	mhi_1: qcom,mhi@1 {
+		reg = <0 0 0 0 0 >;
+		qrtr_instance_id = <0x21>;
+		#address-cells = <0x2>;
+		#size-cells = <0x2>;
+
+		base-addr = <0x54600000>;
+		qcom,caldb-addr = <0x57500000>;
+		qrtr_node_id = <0x28>;
+		mhi,max-channels = <30>;
+		mhi,timeout = <10000>;
+
+		pcie1_mhi: pcie1_mhi {
+			status = "ok";
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
index b651345..eef47c1 100644
--- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
@@ -709,6 +709,10 @@
 				      "ahb",
 				      "axi_m_sticky";
 			status = "disabled";
+
+			pcie1_rp: pcie1_rp {
+				reg = <0 0 0 0 0>;
+			};
 		};
 
 		pcie0: pci@...00000 {
@@ -779,6 +783,10 @@
 				      "axi_m_sticky",
 				      "axi_s_sticky";
 			status = "disabled";
+
+			pcie0_rp: pcie0_rp {
+				reg = <0 0 0 0 0>;
+			};
 		};
 
 		tcsr_q6: syscon@...5000 {
-- 
2.7.4