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Date: Fri, 5 May 2023 15:12:54 +0800
From: Xianwei Zhao <xianwei.zhao@...ogic.com>
To: <linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
<linux-amlogic@...ts.infradead.org>, <devicetree@...r.kernel.org>
CC: Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>,
Neil Armstrong <neil.armstrong@...aro.org>,
Kevin Hilman <khilman@...libre.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: [PATCH V3] arm64: dts: add support for C3 based Amlogic AW409
Amlogic C3 is an advanced edge AI processor designed for smart IP camera
applications.
Add basic support for the C3 based Amlogic AW409 board, which describes
the following components: CPU, GIC, IRQ, Timer, UART. It's capable of
booting up into the serial console.
Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
Link: https://lore.kernel.org/all/20230407102704.1055152-1-kelvin.zhang@amlogic.com
Link: https://lore.kernel.org/all/20230307222651.2106615-2-martin.blumenstingl@googlemail.com
---
v2 -> V3: Remove '256m' from filename;
Keep alphabetical order of Makefile.
V1 -> V2: Remove new arch, and use ARCH_MESON;
Modify node name, and delete superfluous blank line.
---
arch/arm64/boot/dts/amlogic/Makefile | 1 +
.../dts/amlogic/amlogic-c3-c302x-aw409.dts | 29 +++++++
arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi | 86 +++++++++++++++++++
3 files changed, 116 insertions(+)
create mode 100644 arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409.dts
create mode 100644 arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index cd1c5b04890a..6f61798a109f 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_MESON) += amlogic-c3-c302x-aw409.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-axg-jethome-jethub-j100.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-axg-jethome-jethub-j110-rev-2.dtb
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409.dts b/arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409.dts
new file mode 100644
index 000000000000..edce8850b338
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409.dts
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "amlogic-c3.dtsi"
+
+/ {
+ model = "Amlogic C302 aw409 Development Board";
+ compatible = "amlogic,aw409", "amlogic,c3";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aliases {
+ serial0 = &uart_b;
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x10000000>;
+ };
+};
+
+&uart_b {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
new file mode 100644
index 000000000000..93b335aef605
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ };
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+ <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ xtal: xtal-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ clock-output-names = "xtal";
+ #clock-cells = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ gic: interrupt-controller@...01000 {
+ compatible = "arm,gic-400";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0x0 0xfff01000 0 0x1000>,
+ <0x0 0xfff02000 0 0x2000>,
+ <0x0 0xfff04000 0 0x2000>,
+ <0x0 0xfff06000 0 0x2000>;
+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+ };
+
+ apb4: bus@...00000 {
+ compatible = "simple-bus";
+ reg = <0x0 0xfe000000 0x0 0x480000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0xfe000000 0x0 0x480000>;
+
+ uart_b: serial@...00 {
+ compatible = "amlogic,meson-g12a-uart";
+ reg = <0x0 0x7a000 0x0 0x18>;
+ interrupts = <GIC_SPI 169 IRQ_TYPE_EDGE_RISING>;
+ status = "disabled";
+ clocks = <&xtal>, <&xtal>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+ };
+
+ };
+ };
+};
base-commit: ae68fb187b59bc8645974320808ab2d7c41b1833
--
2.37.1
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