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Date: Mon, 7 Mar 2022 11:25:09 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Jacky Huang <ychuang3@...oton.com>, robh+dt@...nel.org,
mturquette@...libre.com, sboyd@...nel.org, arnd@...db.de,
olof@...om.net
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-clk@...r.kernel.org, soc@...nel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3/3] arm64: dts: nuvoton: Add initial support for MA35D1
On 07/03/2022 10:19, Jacky Huang wrote:
> Add the initial device tree files for Nuvoton MA35D1 Soc.
>
> Signed-off-by: Jacky Huang <ychuang3@...oton.com>
> ---
> arch/arm64/boot/dts/Makefile | 1 +
> arch/arm64/boot/dts/nuvoton/Makefile | 2 +
> arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts | 23 +++++
> arch/arm64/boot/dts/nuvoton/ma35d1.dtsi | 106 +++++++++++++++++++++
> 4 files changed, 132 insertions(+)
> create mode 100644 arch/arm64/boot/dts/nuvoton/Makefile
> create mode 100644 arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts
> create mode 100644 arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
>
> diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
> index 639e01a4d855..28e01442094f 100644
> --- a/arch/arm64/boot/dts/Makefile
> +++ b/arch/arm64/boot/dts/Makefile
> @@ -30,3 +30,4 @@ subdir-y += synaptics
> subdir-y += ti
> subdir-y += toshiba
> subdir-y += xilinx
> +subdir-y += nuvoton
> diff --git a/arch/arm64/boot/dts/nuvoton/Makefile b/arch/arm64/boot/dts/nuvoton/Makefile
> new file mode 100644
> index 000000000000..e1e0c466bf5e
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nuvoton/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0
> +dtb-$(CONFIG_ARCH_NUVOTON) += ma35d1-evb.dtb
ARCH_NUVOTON does not exist.
> diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts b/arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts
> new file mode 100644
> index 000000000000..38e4f734da0f
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nuvoton/ma35d1-evb.dts
> @@ -0,0 +1,23 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Device Tree Source for MA35D1 Evaluation Board (EVB)
> + *
> + * Copyright (C) 2021 Nuvoton Technology Corp.
> + */
> +
> +/dts-v1/;
> +#include "ma35d1.dtsi"
> +
> +/ {
> + model = "Nuvoton MA35D1-EVB";
> +
> + chosen {
> + bootargs = "console=ttyS0,115200n8";
No bootargs. "chosen", please.
> + };
You need compatible and bindings.
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x00000000 0x80000000 0 0x10000000>;
> + };
> +};
> +
> diff --git a/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi b/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
> new file mode 100644
> index 000000000000..27adac4975c3
> --- /dev/null
> +++ b/arch/arm64/boot/dts/nuvoton/ma35d1.dtsi
> @@ -0,0 +1,106 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2022 Nuvoton Technology Corp.
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/clock/nuvoton,ma35d1-clk.h>
> +
> +/ {
> + compatible = "nuvoton,ma35d1";
Please run checkpatch. This compatible looks undocumented.
> + interrupt-parent = <&gic>;
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + cpus {
> + #address-cells = <2>;
> + #size-cells = <0>;
> + cpu-map {
> + cluster0 {
> + core0 {
> + cpu = <&cpu0>;
> + };
> + core1 {
> + cpu = <&cpu1>;
> + };
> + };
> + };
Line break between each nodes, here and below.
> + cpu0: cpu@0 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a35";
> + reg = <0x0 0x0>;
> + enable-method = "psci";
> + next-level-cache = <&L2_0>;
> + };
> + cpu1: cpu@1 {
> + device_type = "cpu";
> + compatible = "arm,cortex-a35";
> + reg = <0x0 0x1>;
> + enable-method = "psci";
> + next-level-cache = <&L2_0>;
> + };
> + L2_0: l2-cache0 {
> + compatible = "cache";
> + cache-level = <2>;
> + };
> + };
> +
> + psci {
> + compatible = "arm,psci-0.2";
> + method = "smc";
> + };
> +
> + 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)>;
> + clock-frequency = <12000000>;
> + };
> +
> + sys: system-controller@...60000 {
> + compatible = "nuvoton,ma35d1-sys", "syscon", "simple-mfd";
> + reg = <0x0 0x40460000 0x0 0x200>;
> + };
> +
> + reset: reset-controller {
> + compatible = "nuvoton,ma35d1-reset";
> + nuvoton,ma35d1-sys = <&sys>;
> + #reset-cells = <1>;
> + };
> +
> + clk: clock-controller@...60200 {
> + compatible = "nuvoton,ma35d1-clk";
> + reg = <0x00000000 0x40460200 0x0 0x100>;
> + #clock-cells = <1>;
> + assigned-clocks = <&clk DDRPLL>,
> + <&clk APLL>,
> + <&clk EPLL>,
> + <&clk VPLL>;
> + assigned-clock-rates = <266000000>,
> + <180000000>,
> + <500000000>,
> + <102000000>;
> + clock-pll-mode = <1>, <0>, <0>, <0>;
> + };
> +
> + gic: interrupt-controller@...00000 {
> + compatible = "arm,gic-400";
> + #interrupt-cells = <3>;
> + interrupt-parent = <&gic>;
> + interrupt-controller;
> + reg = <0x0 0x50801000 0 0x1000>,
> + <0x0 0x50802000 0 0x2000>,
> + <0x0 0x50804000 0 0x2000>,
> + <0x0 0x50806000 0 0x2000>;
> + interrupts = <GIC_PPI 9 (GIC_CPU_MASK_RAW(0x13) |
> + IRQ_TYPE_LEVEL_HIGH)>;
> + };
> +};
> --
> 2.17.1
>
> ________________________________
> ________________________________
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> Your cooperation is highly appreciated...
Cooperation seems futile... :)
Best regards,
Krzysztof
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