linux-kernel - Re: [PATCH v4 4/5] ARM: dts: imx6ull: add rng

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Date:   Tue, 17 Aug 2021 19:38:42 +0200
From:   Frieder Schrempf <frieder.schrempf@...tron.de>
To:     Horia Geantă <horia.geanta@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>
Cc:     devicetree@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Iuliana Prodan <iuliana.prodan@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Marco Felsch <m.felsch@...gutronix.de>,
        linux-kernel@...r.kernel.org,
        Franck Lenormand <franck.lenormand@....com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Martin Kaiser <martin@...ser.cx>,
        Silvano Di Ninno <silvano.dininno@....com>,
        Fabio Estevam <festevam@...il.com>,
        linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org
Subject: Re: [PATCH v4 4/5] ARM: dts: imx6ull: add rng

On 17.08.21 17:39, Frieder Schrempf wrote:
> Hi,
> 
> On 15.07.20 17:26, Horia Geantă wrote:
>> Add node for the RNGB block.
>>
>> Signed-off-by: Horia Geantă <horia.geanta@....com>
>> Reviewed-by: Marco Felsch <m.felsch@...gutronix.de>
>> ---
>>  arch/arm/boot/dts/imx6ull.dtsi | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi
>> index fcde7f77ae42..9bf67490ac49 100644
>> --- a/arch/arm/boot/dts/imx6ull.dtsi
>> +++ b/arch/arm/boot/dts/imx6ull.dtsi
>> @@ -68,6 +68,13 @@
>>  				clock-names = "dcp";
>>  			};
>>  
>> +			rngb: rng@...4000 {
>> +				compatible = "fsl,imx6ull-rngb", "fsl,imx25-rngb";
>> +				reg = <0x02284000 0x4000>;
>> +				interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
>> +				clocks = <&clks IMX6UL_CLK_DUMMY>;
>> +			};
>> +
> 
> My board (imx6ull-kontron-n6411-s.dts) fails to boot since this was added in v5.10-rc1. There is a crash in the RNG probe. Can anyone help?
> Below is the interesting part of the boot log from v5.14-rc6.

I just found out, that I was trying to boot on an i.MX6UL when I was assuming the board had an i.MX6ULL. That won't work of course. Sorry for the noise!