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@xxxxxxxxxxx> --- Link: https://lore.kernel.org/all/20230407102704.1055152-1-kelvin.zhang@xxxxxxxxxxx V4 -> V5: Use string 'meson-s4-uart' instead of 'meson-g12a-uart'. V3 -> V4: Move Link under the --- before the changelog. 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 | 87 +++++++++++++++++++ 3 files changed, 117 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..60ad4f3eef9d --- /dev/null +++ b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi @@ -0,0 +1,87 @@ +// 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@fff01000 { + 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@fe000000 { + compatible = "simple-bus"; + reg = <0x0 0xfe000000 0x0 0x480000>; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0x0 0x0 0x0 0xfe000000 0x0 0x480000>; + + uart_b: serial@7a000 { + compatible = "amlogic,meson-s4-uart", + "amlogic,meson-ao-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
