Add basic support for the Amlogic S4 based Amlogic AQ222 board:
which describe components as follows: CPU, GIC, IRQ, Timer, UART.
It's capable of booting up into the serial console.
Signed-off-by: Xianwei Zhao <[email protected]>
---
V3 -> V4: cleaned up coding style.
V2 -> V3: add of dts board compatible family.
V1 -> V2: cleaned up coding style, modify CPU affinity of timer interrups,
and modify GIC reg defintions.
---
arch/arm64/boot/dts/amlogic/Makefile | 1 +
.../dts/amlogic/meson-s4-s805x2-aq222.dts | 30 ++++++
arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 99 +++++++++++++++++++
3 files changed, 130 insertions(+)
create mode 100644 arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts
create mode 100644 arch/arm64/boot/dts/amlogic/meson-s4.dtsi
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 5148cd9e5146..faea74a45994 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -57,3 +57,4 @@ dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-c4.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-hc4.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb
+dtb-$(CONFIG_ARCH_MESON) += meson-s4-s805x2-aq222.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts
new file mode 100644
index 000000000000..a942d7e06d6e
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
+ */
+
+/dts-v1/;
+
+#include "meson-s4.dtsi"
+
+/ {
+ model = "Amlogic Meson S4 AQ222 Development Board";
+ compatible = "amlogic,aq222", "amlogic,s4";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aliases {
+ serial0 = &uart_B;
+ };
+
+ memory@00000000 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x40000000>;
+ };
+
+};
+
+&uart_B {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
new file mode 100644
index 000000000000..bf9ae1e1016b
--- /dev/null
+++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
@@ -0,0 +1,99 @@
+// 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>
+
+/ {
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35","arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35","arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35","arm,armv8";
+ reg = <0x0 0x2>;
+ enable-method = "psci";
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a35","arm,armv8";
+ reg = <0x0 0x3>;
+ 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: apb4@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: c5468e3c930d4d2937d3a842a85df0f74e95e152
--
2.30.2
Hi,
On Thu, 6 Jan 2022 19:22:14 +0800, Xianwei Zhao wrote:
> Add basic support for the Amlogic S4 based Amlogic AQ222 board:
> which describe components as follows: CPU, GIC, IRQ, Timer, UART.
> It's capable of booting up into the serial console.
>
>
Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v5.18/dt64)
[1/1] arm64: dts: add support for S4 based Amlogic AQ222
https://git.kernel.org/amlogic/c/1c1475389af077a9636c22dcb8c9ef498b48fcfc
--
Neil
On Thu, Jan 6, 2022 at 5:22 AM Xianwei Zhao <[email protected]> wrote:
>
> Add basic support for the Amlogic S4 based Amlogic AQ222 board:
> which describe components as follows: CPU, GIC, IRQ, Timer, UART.
> It's capable of booting up into the serial console.
>
> Signed-off-by: Xianwei Zhao <[email protected]>
> ---
> V3 -> V4: cleaned up coding style.
> V2 -> V3: add of dts board compatible family.
> V1 -> V2: cleaned up coding style, modify CPU affinity of timer interrups,
> and modify GIC reg defintions.
> ---
> arch/arm64/boot/dts/amlogic/Makefile | 1 +
> .../dts/amlogic/meson-s4-s805x2-aq222.dts | 30 ++++++
> arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 99 +++++++++++++++++++
> 3 files changed, 130 insertions(+)
> create mode 100644 arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts
> create mode 100644 arch/arm64/boot/dts/amlogic/meson-s4.dtsi
>
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index 5148cd9e5146..faea74a45994 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -57,3 +57,4 @@ dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-c4.dtb
> dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-hc4.dtb
> dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
> dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb
> +dtb-$(CONFIG_ARCH_MESON) += meson-s4-s805x2-aq222.dtb
> diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts
> new file mode 100644
> index 000000000000..a942d7e06d6e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts
> @@ -0,0 +1,30 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +#include "meson-s4.dtsi"
> +
> +/ {
> + model = "Amlogic Meson S4 AQ222 Development Board";
> + compatible = "amlogic,aq222", "amlogic,s4";
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + aliases {
> + serial0 = &uart_B;
> + };
> +
> + memory@00000000 {
> + device_type = "memory";
> + reg = <0x0 0x0 0x0 0x40000000>;
> + };
> +
> +};
> +
> +&uart_B {
> + status = "okay";
> +};
> diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
> new file mode 100644
> index 000000000000..bf9ae1e1016b
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
> @@ -0,0 +1,99 @@
> +// 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>
> +
> +/ {
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a35","arm,armv8";
I see this is already applied, but 'arm,armv8' is only valid for s/w
models. Please send a fix.
Rob