Re: [PATCH 11/15] arm64: dts: nuvoton: Add initial ma35d1 device tree

[Krzysztof Kozlowski]

On 18/03/2023 07:07, Jacky Huang wrote:
> 
>>
>>> +		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_RAW(0x13) |
>>> +			      IRQ_TYPE_LEVEL_HIGH)>;
>>> +	};
>>> +
>>> +	uart0:serial@40700000 {
>>> +		compatible = "nuvoton,ma35d1-uart";
>>> +		reg = <0x0 0x40700000 0x0 0x100>;
>>> +		interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
>>> +		clocks = <&clk UART0_GATE>;
>>> +		status = "okay";
>> Why? Drop the line... or convert it to disabled. Otherwise, why every
>> SoC has serial0 enabled? Is it used internally?
> 
> 
> uart0 is on all the way since this SoC booting from the MaskROM boot code,
> 
> load arm-trusted-firmware, load bootloader, and finally load linux  kernel.
> 
> uart0 is also the Linux console.

Are you sure? Maybe my board has UART0 disconnected.

Best regards,
Krzysztof