linux-kernel - Re: [PATCH 1/3] ARM: dts: qcom: ipq8064: add v2 dtsi variant

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Date:   Thu, 11 Aug 2022 14:48:29 +0200
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ARM: dts: qcom: ipq8064: add v2 dtsi variant



On 8.08.2022 15:35, Christian Marangi wrote:
> On Mon, Aug 08, 2022 at 12:55:36PM +0200, Konrad Dybcio wrote:
>>
>>
>> On 7.08.2022 15:00, Christian Marangi wrote:
>>> On Mon, Jul 18, 2022 at 06:18:24PM +0200, Christian Marangi wrote:
>>>> Add ipq8064-v2.0 dtsi variant that differ from original ipq8064 SoC for
>>>> some additional pcie, sata and usb configuration values, additional
>>>> reserved memory and serial output.
>>>>
>>>> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
>>>
>>> Any news for this?Unless Qualcomm naming was different back then, you should simply merge
>> all of these changes into ipq8064.dtsi, as v1 is often the pre-production,
>> internal chip revision and only the last one (or the last and second-last)
>> are shipped in production devices.
>>
> 
> Mhh, this is not the case, there are dev board based on v1 and we also
> have some device based on v1 (that have some difference for pci and usb)
> One example is a Netgear r7500 where we have 2 revision one based on
> ipq8064-v1.0 and one based on ipq8064-v2.0.
Very interesting.. but if there really are devices shipping with v1, I guess
it's the correct thing to keep both.

Konrad