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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87171ab8-9c6d-3978-6d34-4ae922361307@linaro.org>
Date:   Sun, 19 Mar 2023 12:06:13 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jacky Huang <ychuang570808@...il.com>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, lee@...nel.org,
        mturquette@...libre.com, sboyd@...nel.org, p.zabel@...gutronix.de,
        gregkh@...uxfoundation.org, jirislaby@...nel.org
Cc:     devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
        schung@...oton.com, Jacky Huang <ychuang3@...oton.com>
Subject: Re: [PATCH 11/15] arm64: dts: nuvoton: Add initial ma35d1 device tree

On 18/03/2023 07:07, Jacky Huang wrote:
> 
>>
>>> +		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_RAW(0x13) |
>>> +			      IRQ_TYPE_LEVEL_HIGH)>;
>>> +	};
>>> +
>>> +	uart0:serial@...00000 {
>>> +		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