Re: [PATCH 09/10] arm64: dts: qcom: add IPQ5332 SoC and MI01.2 board support

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Thanks Konrad for taking time to review the patch.


On 1/26/2023 3:29 AM, Konrad Dybcio wrote:

On 25.01.2023 11:45, Kathiravan Thirumoorthy wrote:
From: Kathiravan T <quic_kathirav@xxxxxxxxxxx>

Add initial device tree support for the Qualcomm IPQ5332 SoC and
MI01.2 board.

Signed-off-by: Kathiravan T <quic_kathirav@xxxxxxxxxxx>
---
  arch/arm64/boot/dts/qcom/Makefile           |   1 +
  arch/arm64/boot/dts/qcom/ipq5332-mi01.2.dts |  71 +++++
  arch/arm64/boot/dts/qcom/ipq5332.dtsi       | 273 ++++++++++++++++++++
  3 files changed, 345 insertions(+)
  create mode 100644 arch/arm64/boot/dts/qcom/ipq5332-mi01.2.dts
  create mode 100644 arch/arm64/boot/dts/qcom/ipq5332.dtsi

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 3e79496292e7..fbd5bc583a9b 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -3,6 +3,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb
  dtb-$(CONFIG_ARCH_QCOM)	+= apq8094-sony-xperia-kitakami-karin_windy.dtb
  dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
  dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-ifc6640.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= ipq5332-mi01.2.dtb
  dtb-$(CONFIG_ARCH_QCOM)	+= ipq6018-cp01-c1.dtb
  dtb-$(CONFIG_ARCH_QCOM)	+= ipq8074-hk01.dtb
  dtb-$(CONFIG_ARCH_QCOM)	+= ipq8074-hk10-c1.dtb
diff --git a/arch/arm64/boot/dts/qcom/ipq5332-mi01.2.dts b/arch/arm64/boot/dts/qcom/ipq5332-mi01.2.dts
new file mode 100644
index 000000000000..7984d8f824ce
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq5332-mi01.2.dts
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * IPQ5332 AP-MI01.2 board device tree source
+ *
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "ipq5332.dtsi"
+
+/ {
+	model = "Qualcomm Technologies, Inc. IPQ5332/AP-MI01.2";
+	compatible = "qcom,ipq5332-ap-mi01.2", "qcom,ipq5332";
+
+	aliases {
+		serial0 = &blsp1_uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0";
+	};
+};
+
+&blsp1_uart0 {
+	pinctrl-0 = <&serial_0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&sdhc {
+	pinctrl-0 = <&sdc_default_state>;
+	pinctrl-names = "default";
+	non-removable;
+	status = "okay";
+};
+
+&sleep_clk {
+	clock-frequency = <32000>;
+};
+
+&xo_board {
+	clock-frequency = <24000000>;
+};
+
+/* PINCTRL */
+
+&tlmm {
+	sdc_default_state: sdc-default-state {
+		clk-pins {
+			pins = "gpio13";
+			function = "sdc_clk";
+			drive-strength = <8>;
+			bias-disable;
+		};
+
+		cmd-pins {
+			pins = "gpio12";
+			function = "sdc_cmd";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		data-pins {
+			pins = "gpio8", "gpio9", "gpio10", "gpio11";
+			function = "sdc_data";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
new file mode 100644
index 000000000000..d04244a3cd3a
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * IPQ5332 device tree source
+ *
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <dt-bindings/clock/qcom,gcc-ipq5332.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	interrupt-parent = <&intc>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	clocks {
+		sleep_clk: sleep-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+		};
+
+		xo_board: xo-board-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+		};
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		CPU0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x0>;
+			enable-method = "psci";
+			next-level-cache = <&L2_0>;
+		};
+
+		CPU1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x1>;
+			enable-method = "psci";
+			next-level-cache = <&L2_0>;
+		};
+
+		CPU2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x2>;
+			enable-method = "psci";
+			next-level-cache = <&L2_0>;
+		};
+
+		CPU3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x3>;
+			enable-method = "psci";
+			next-level-cache = <&L2_0>;
+		};
+
+		L2_0: l2-cache {
+			compatible = "cache";
+			cache-level = <0x2>;
+		};
+	};
+
+	firmware {
+		scm {
+			compatible = "qcom,scm-ipq5332", "qcom,scm";
+		};
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		/* We expect the bootloader to fill in the size */
+		reg = <0x0 0x40000000 0x0 0x0>;
+	};
+
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_PPI 7 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+	};
+
+	psci {
+		compatible = "arm,psci-1.0";
+		method = "smc";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		tz: memory@4a600000 {
memory@ is discouraged, the node name should be somewhat
descriptive of what lies in this reserved region. On the
other hand, tz: sounds like a label to a trust zone device
of some kind. I propose:

tz_mem: tz@4a600000 {

instead.


Ack.



+			no-map;
+			reg = <0x0 0x4a600000 0x0 0x200000>;
+		};
+	};
+
+	soc@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0 0 0xffffffff>;
+		compatible = "simple-bus";
Move compatible first, please.


Ack.



+
+		tlmm: pinctrl@1000000 {
+			compatible = "qcom,ipq5332-tlmm";
+			reg = <0x01000000 0x300000>;
+			interrupts = <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&tlmm 0 0 53>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+
+			serial_0_pins: serial0-state {
You may be interested in having a suspend state for this
one, so you may wish to rename this futureproofing-ly to
serial0-active-state.


Ack. AFAIK, we don't support suspend state, anyways let me got back and check it.



+				pins = "gpio18", "gpio19";
+				function = "blsp0_uart0";
+				drive-strength = <8>;
+				bias-pull-up;
+			};
+		};
+
+		gcc: clock-controller@1800000 {
+			compatible = "qcom,ipq5332-gcc";
+			reg = <0x01800000 0x80000>;
+			#clock-cells = <0x1>;
+			#reset-cells = <0x1>;
Decimal values for -cells, please.


Ack.



+			#power-domain-cells = <1>;
+			clock-names = "xo",
+				      "sleep_clk",
+				      "pcie_2lane_phy_pipe_clk",
+				      "pcie_2lane_phy_pipe_clk_x1",
+				      "usb_pcie_wrapper_pipe_clk";
+			clocks = <&xo_board>,
+				 <&sleep_clk>,
+				 <0>,
+				 <0>,
+				 <0>;
+		};
+
+		sdhc: mmc@7804000 {
+			compatible = "qcom,ipq5332-sdhci", "qcom,sdhci-msm-v5";
+			reg = <0x07804000 0x1000>, <0x07805000 0x1000>;
+
+			interrupts = <GIC_SPI 313 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 316 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "hc_irq", "pwr_irq";
+
+			clocks = <&gcc GCC_SDCC1_AHB_CLK>,
+				 <&gcc GCC_SDCC1_APPS_CLK>,
+				 <&xo_board>;
+			clock-names = "iface", "core", "xo";
+			mmc-ddr-1_8v;
+			mmc-hs200-1_8v;
+			max-frequency = <192000000>;
As Krzysztof pointed out, this one should go.


Ack.



+			bus-width = <4>;
Oh that's interesting.. a 4-wide bus for eMMC?


Yes, eMMC is 4bit bus width with HS200 mode only.



+			status = "disabled";
+		};
+
+		blsp1_uart0: serial@78af000 {
+			compatible = "qcom,msm-uartdm-v1.4", "qcom,msm-uartdm";
+			reg = <0x078af000 0x200>;
+			interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&gcc GCC_BLSP1_UART1_APPS_CLK>,
+				 <&gcc GCC_BLSP1_AHB_CLK>;
+			clock-names = "core", "iface";
+			status = "disabled";
+		};
+
+		intc: interrupt-controller@b000000 {
+			compatible = "qcom,msm-qgic2";
+			#address-cells = <1>;
+			#size-cells = <1>;
Please move these two above ranges..


Ack.



+			interrupt-controller;
+			#interrupt-cells = <0x3>;
Decimal value, please.


Ack.



+			reg = <0x0b000000 0x1000>,	/* GICD */
+			      <0x0b002000 0x1000>,	/* GICC */
+			      <0x0b001000 0x1000>,	/* GICH */
+			      <0x0b004000 0x1000>;	/* GICV */
..and reg just below compatible...

Ack.



+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
..and interrupts just below reg, please.

Ack.



+			ranges = <0 0x0b00c000 0x3000>;
+
+			v2m0: v2m@0 {
+				compatible = "arm,gic-v2m-frame";
+				reg = <0x0 0xffd>;
Please pad the reg for consistency.


Sure.


+				msi-controller;
+			};
+
+			v2m1: v2m@1 {
+				compatible = "arm,gic-v2m-frame";
+				reg = <0x00001000 0xffd>;
+				msi-controller;
+			};
+
+			v2m2: v2m@2 {
+				compatible = "arm,gic-v2m-frame";
+				reg = <0x00002000 0xffd>;
+				msi-controller;
+			};
+		};
+
+		timer@b120000 {
+			compatible = "arm,armv7-timer-mem";
+			reg = <0x0b120000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			frame@b120000 {
+				frame-number = <0>;
+				interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b121000 0x1000>,
+				      <0x0b122000 0x1000>;
reg
interrupts
frame-number

would be more consistent with most other nodes.
Ack.

+			};
+
+			frame@b123000 {
+				frame-number = <1>;
+				interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b123000 0x1000>;
+				status = "disabled";
+			};
+
+			frame@b124000 {
+				frame-number = <2>;
+				interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b124000 0x1000>;
+				status = "disabled";
+			};
+
+			frame@b125000 {
+				frame-number = <3>;
+				interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b125000 0x1000>;
+				status = "disabled";
+			};
+
+			frame@b126000 {
+				frame-number = <4>;
+				interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b126000 0x1000>;
+				status = "disabled";
+			};
+
+			frame@b127000 {
+				frame-number = <5>;
+				interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b127000 0x1000>;
+				status = "disabled";
+			};
+
+			frame@b128000 {
+				frame-number = <6>;
+				interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+				reg = <0x0b128000 0x1000>;
+				status = "disabled";
+			};
+		};
+
+	};
+
+	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 indentation seems off here.


Will fix it in V2. Thanks.



Konrad
+	};
+};



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