From: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx> Amlogic A5 is an application processor designed for smart audio and IoT applications. Add basic support for the A5 based Amlogic AV400 board, which describes the following components: CPU, GIC, IRQ, Timer and UART. These are capable of booting up into the serial console. Signed-off-by: Xianwei Zhao <xianwei.zhao@xxxxxxxxxxx> --- arch/arm64/boot/dts/amlogic/Makefile | 1 + .../boot/dts/amlogic/amlogic-a5-a113x2-av400.dts | 43 ++++++++++ arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi | 94 ++++++++++++++++++++++ 3 files changed, 138 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile index 9a50ec11bb8d..154c9efb26e4 100644 --- a/arch/arm64/boot/dts/amlogic/Makefile +++ b/arch/arm64/boot/dts/amlogic/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 dtb-$(CONFIG_ARCH_MESON) += amlogic-a4-a113l2-ba400.dtb +dtb-$(CONFIG_ARCH_MESON) += amlogic-a5-a113x2-av400.dtb dtb-$(CONFIG_ARCH_MESON) += amlogic-c3-c302x-aw409.dtb dtb-$(CONFIG_ARCH_MESON) += amlogic-t7-a311d2-an400.dtb dtb-$(CONFIG_ARCH_MESON) += amlogic-t7-a311d2-khadas-vim4.dtb diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a5-a113x2-av400.dts b/arch/arm64/boot/dts/amlogic/amlogic-a5-a113x2-av400.dts new file mode 100644 index 000000000000..e36fae1cf844 --- /dev/null +++ b/arch/arm64/boot/dts/amlogic/amlogic-a5-a113x2-av400.dts @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2024 Amlogic, Inc. All rights reserved. + */ + +/dts-v1/; + +#include "amlogic-a5.dtsi" + +/ { + model = "Amlogic A113X2 av400 Development Board"; + compatible = "amlogic,av400","amlogic,a5"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + aliases { + serial0 = &uart_b; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x0 0x0 0x40000000>; + }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + /* 52 MiB reserved for ARM Trusted Firmware */ + secmon_reserved:linux,secmon { + compatible = "shared-dma-pool"; + no-map; + alignment = <0x0 0x400000>; + reg = <0x0 0x05000000 0x0 0x3400000>; + }; + }; +}; + +&uart_b { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi new file mode 100644 index 000000000000..bfb9f13f84ec --- /dev/null +++ b/arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi @@ -0,0 +1,94 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2024 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-a55"; + reg = <0x0 0x0>; + enable-method = "psci"; + }; + + cpu1: cpu@100 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + reg = <0x0 0x100>; + enable-method = "psci"; + }; + + cpu2: cpu@200 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + reg = <0x0 0x200>; + enable-method = "psci"; + }; + + cpu3: cpu@300 { + device_type = "cpu"; + compatible = "arm,cortex-a55"; + reg = <0x0 0x300>; + 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)>; + }; + + 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)>; + }; + + apb@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>; + clocks = <&xtal>, <&xtal>, <&xtal>; + clock-names = "xtal", "pclk", "baud"; + status = "disabled"; + }; + }; + }; +}; -- 2.37.1