Re: [PATCH 3/3] arm64: dts: nuvoton: Add initial support for MA35D1
From: Jacky Huang
Date: Wed Apr 06 2022 - 04:32:59 EST
On 2022/3/7 下午 06:25, Krzysztof Kozlowski wrote:
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@xxxxxxxxxxx>
---
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.
I would add the following to end of arch/arm64/Kconfig.platforms, and
add the
modification to this patch series.
config ARCH_MA35D1
bool "Nuvoton MA35D1 SOC Family"
select PINCTRL
select PINCTRL_MA35D1
select PM
select GPIOLIB
select SOC_BUS
select VIDEOMODE_HELPERS
select FB_MODE_HELPERS
help
This enables support for Nuvoton MA35D1 SOC Family.
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.
OK, I would modify it as:
chosen {
stdout-path = "serial0:115200n8";
};
+ };
You need compatible and bindings.
I will add the compatible here
compatible = "nuvoton,ma35d1-evb", "nuvoton,ma35d1"
And, I should create a new binding file
Documentation/devicetree/bindings/arm/nuvoton.yaml to this patch series.
And the property would be:
properties:
compatible:
description: Nuvoton MA35D1-EVB
items:
- const: nuvoton,ma35d1-evb
- const: nuvoton,ma35d1
Is it OK?
+
+ memory@80000000 {
+ 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.
I will create a new binding file
Documentation/devicetree/bindings/arm/nuvoton.yaml to this patch series.
+ 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.
OK, I will fix it in the next version.
+ 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@40460000 {
+ 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@40460200 {
+ 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@50800000 {
+ 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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Best regards,
Krzysztof
I am sorry. I have requested mail server manager to add exception rule.
The unpleasant official declarations are removed.
Thanks for your review.
Sincerely,
Jacky