Thread (28 messages) 28 messages, 7 authors, 2019-06-24

Re: [PATCH 5/6] arm64: dts: Add ipq6018 SoC and CP01 board support

From: Marc Zyngier <hidden>
Date: 2019-06-05 17:26:21
Also in: linux-arm-msm, linux-clk, linux-devicetree, linux-gpio, lkml

On 05/06/2019 18:16, Sricharan R wrote:
quoted hunk ↗ jump to hunk
Add initial device tree support for the Qualcomm IPQ6018 SoC and
CP01 evaluation board.

Signed-off-by: Sricharan R <redacted>
Signed-off-by: Abhishek Sahu <redacted>
---
 arch/arm64/boot/dts/qcom/Makefile            |   1 +
 arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts |  35 ++++
 arch/arm64/boot/dts/qcom/ipq6018.dtsi        | 231 +++++++++++++++++++++++++++
 3 files changed, 267 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
 create mode 100644 arch/arm64/boot/dts/qcom/ipq6018.dtsi
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 21d548f..ac22dbb 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -2,6 +2,7 @@
 dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq8074-hk01.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= ipq6018-cp01-c1.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8916-mtp.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8992-bullhead-rev-101.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= msm8994-angler-rev-101.dtb
diff --git a/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts b/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
new file mode 100644
index 0000000..ac7cb22
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dts
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * IPQ6018 CP01 board device tree source
+ *
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "ipq6018.dtsi"
+
+/ {
+	#address-cells = <0x2>;
+	#size-cells = <0x2>;
+	model = "Qualcomm Technologies, Inc. IPQ6018/AP-CP01-C1";
+	compatible = "qcom,ipq6018-cp01", "qcom,ipq6018";
+	interrupt-parent = <&intc>;
+};
+
+&tlmm {
+	uart_pins: uart_pins {
+		mux {
+			pins = "gpio44", "gpio45";
+			function = "blsp2_uart";
+			drive-strength = <8>;
+			bias-pull-down;
+		};
+	};
+};
+
+&blsp1_uart3 {
+	pinctrl-0 = <&uart_pins>;
+	pinctrl-names = "default";
+	status = "ok";
+};
diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
new file mode 100644
index 0000000..79cccdd
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -0,0 +1,231 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * IPQ6018 SoC device tree source
+ *
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/qcom,gcc-ipq6018.h>
+
+/ {
+	model = "Qualcomm Technologies, Inc. IPQ6018";
+	compatible = "qcom,ipq6018";
+
+	chosen {
+		bootargs = "console=ttyMSM0,115200,n8 rw init=/init";
+		bootargs-append = " swiotlb=1 clk_ignore_unused";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		tz:tz@48500000 {
+			no-map;
+			reg = <0x0 0x48500000 0x0 0x00200000>;
+		};
+	};
+
+	soc: soc {
+		#address-cells = <0x1>;
+		#size-cells = <0x1>;
+		ranges = <0 0 0 0xffffffff>;
+		dma-ranges;
+		compatible = "simple-bus";
+
+		intc: interrupt-controller@b000000 {
+			compatible = "qcom,msm-qgic2";
+			interrupt-controller;
+			#interrupt-cells = <0x3>;
+			reg = <0xb000000 0x1000>, <0xb002000 0x1000>;
Where are the rest of the GICv2 MMIO regions, such as GICV and GICH? And
the maintenance interrupt?
+		};
+
+		timer {
+			compatible = "arm,armv8-timer";
+			interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 3 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 4 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+				     <GIC_PPI 1 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
The fact that you expose the EL2 timer interrupt would tend to confirm
the idea that this system supports virtualization... Hence my questions
above.

Thanks,

	M.

-- 
Jazz is not dead. It just smells funny...

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