Re: [PATCH v7 4/4] arm64: dts: amlogic-t7-a311d2-khadas-vim4: add initial device-tree

Neil Armstrong
2023-07-03T09:37:27Z

On 29/06/2023 09:34, Lucas Tanure wrote:
> The Khadas VIM4 uses the Amlogic A311D2 SoC, based on the Amlogic T7 SoC
> family, on a board with the same form factor as the VIM3 models.
>
> - 8GB LPDDR4X 2016MHz
> - 32GB eMMC 5.1 storage
> - 32MB SPI flash
> - 10/100/1000 Base-T Ethernet
> - AP6275S Wireless (802.11 a/b/g/n/ac/ax, BT5.1)
> - HDMI 2.1 video
> - HDMI Input
> - 1x USB 2.0 + 1x USB 3.0 ports
> - 1x USB-C (power) with USB 2.0 OTG
> - 3x LED's (1x red, 1x blue, 1x white)
> - 3x buttons (power, function, reset)
> - M2 socket with PCIe, USB, ADC & I2C
> - 40pin GPIO Header
> - 1x micro SD card slot
>
> Signed-off-by: Lucas Tanure <tanure@linux.com>
> ---
> arch/arm64/boot/dts/amlogic/Makefile | 1 +
> .../amlogic/amlogic-t7-a311d2-khadas-vim4.dts | 54 ++++++
> arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi | 155 ++++++++++++++++++
> 3 files changed, 210 insertions(+)
> create mode 100644 arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
> create mode 100644 arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
>
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index cd1c5b04890a..166fec1e4229 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-$(CONFIG_ARCH_MESON) += amlogic-t7-a311d2-khadas-vim4.dtb
> dtb-$(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-t7-a311d2-khadas-vim4.dts b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
> new file mode 100644
> index 000000000000..fffdab96b12e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
> @@ -0,0 +1,54 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2022 Wesion, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +#include "amlogic-t7.dtsi"
> +
> +/ {
> + model = "Khadas vim4";
> + compatible = "khadas,vim4", "amlogic,a311d2", "amlogic,t7";
> +
> + aliases {
> + serial0 = &uart_a;
> + };
> +
> + memory@0 {
> + device_type = "memory";
> + reg = <0x0 0x0 0x2 0x0>; /* 8 GB */
> + };
> +
> + reserved-memory {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + ranges;
> +
> + /* 3 MiB reserved for ARM Trusted Firmware (BL31) */
> + secmon_reserved: secmon@5000000 {
> + reg = <0x0 0x05000000 0x0 0x300000>;
> + no-map;
> + };
> +
> + /* 32 MiB reserved for ARM Trusted Firmware (BL32) */
> + secmon_reserved_bl32: secmon@5300000 {
> + reg = <0x0 0x05300000 0x0 0x2000000>;
> + no-map;
> + };
> + };
> +
> + xtal: xtal-clk {
> + compatible = "fixed-clock";
> + clock-frequency = <24000000>;
> + clock-output-names = "xtal";
> + #clock-cells = <0>;
> + };
> +
> +};
> +
> +&uart_a {
> + status = "okay";
> + clocks = <&xtal>, <&xtal>, <&xtal>;
> + clock-names = "xtal", "pclk", "baud";
> +};
> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
> new file mode 100644
> index 000000000000..1423d4a79156
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-t7.dtsi
> @@ -0,0 +1,155 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +/ {
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + cpus {
> + #address-cells = <0x2>;
> + #size-cells = <0x0>;
> +
> + cpu-map {
> + cluster0 {
> + core0 {
> + cpu = <&cpu100>;
> + };
> + core1 {
> + cpu = <&cpu101>;
> + };
> + core2 {
> + cpu = <&cpu102>;
> + };
> + core3 {
> + cpu = <&cpu103>;
> + };
> + };
> +
> + cluster1 {
> + core0 {
> + cpu = <&cpu0>;
> + };
> + core1 {
> + cpu = <&cpu1>;
> + };
> + core2 {
> + cpu = <&cpu2>;
> + };
> + core3 {
> + cpu = <&cpu3>;
> + };
> + };
> + };
> +
> + cpu100: cpu@100 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53";
> + reg = <0x0 0x100>;
> + enable-method = "psci";
> + };
> +
> + cpu101: cpu@101{
> + device_type = "cpu";
> + compatible = "arm,cortex-a53";
> + reg = <0x0 0x101>;
> + enable-method = "psci";
> + };
> +
> + cpu102: cpu@102 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53";
> + reg = <0x0 0x102>;
> + enable-method = "psci";
> + };
> +
> + cpu103: cpu@103 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a53";
> + reg = <0x0 0x103>;
> + enable-method = "psci";
> + };
> +
> + cpu0: cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a73";
> + reg = <0x0 0x0>;
> + enable-method = "psci";
> + };
> +
> + cpu1: cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a73";
> + reg = <0x0 0x1>;
> + enable-method = "psci";
> + };
> +
> + cpu2: cpu@2 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a73";
> + reg = <0x0 0x2>;
> + enable-method = "psci";
> + };
> +
> + cpu3: cpu@3 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a73";
> + reg = <0x0 0x3>;
> + enable-method = "psci";
> + };
> + };
> +
> + timer {
> + compatible = "arm,armv8-timer";
> + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
> + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
> + };
> +
> + psci {
> + compatible = "arm,psci-1.0";
> + method = "smc";
> + };
> +
> + sm: secure-monitor {
> + compatible = "amlogic,meson-gxbb-sm";
> + };
> +
> + 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 0x0100>;
> + interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(8) | 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_a: serial@78000 {
> + compatible = "amlogic,t7-uart", "amlogic,meson-s4-uart";
> + reg = <0x0 0x78000 0x0 0x18>;
> + interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
> + status = "disabled";
> + };
> + };
> +
> + };
> +};
> --
> 2.41.0
>

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>