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Message-ID: <fd23e295-fea0-1b0a-752c-3cce26b57346@quicinc.com>
Date:   Tue, 20 Dec 2022 10:30:32 +0530
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Subject: Re: [PATCH v4 1/2] dt-bindings: arm: qcom: Document the sc7280 CRD
 Pro boards
Content-Language: en-US
To:     Matthias Kaehlcke <mka@chromium.org>
CC:     <agross@kernel.org>, <andersson@kernel.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <konrad.dybcio@linaro.org>,
        <linux-arm-msm@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <dianders@chromium.org>
References: <20221216112918.1243-1-quic_rjendra@quicinc.com>
 <Y5x+WEwTtpoV0gaR@google.com>
From:   Rajendra Nayak <quic_rjendra@quicinc.com>
In-Reply-To: <Y5x+WEwTtpoV0gaR@google.com>
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On 12/16/2022 7:49 PM, Matthias Kaehlcke wrote:
> On Fri, Dec 16, 2022 at 04:59:17PM +0530, Rajendra Nayak wrote:
>> Add compatibles for the Pro SKU of the sc7280 CRD boards
>> which come with a Pro variant of the qcard.
>> The Pro qcard variant has smps9 from pm8350c ganged up with
>> smps7 and smps8.
>>
>> Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com>
>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
>> ---
>> v4 changes:
>> Added the zoglin-sku1536 compatible along with hoglin-sku1536.
>> Zoglin is same as the Hoglin variant, with the SPI Flash reduced
>> from 64MB to 8MB
>>
>>   Documentation/devicetree/bindings/arm/qcom.yaml | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
>> index 1b5ac6b02bc5..07771d4c91bd 100644
>> --- a/Documentation/devicetree/bindings/arm/qcom.yaml
>> +++ b/Documentation/devicetree/bindings/arm/qcom.yaml
>> @@ -558,6 +558,12 @@ properties:
>>             - const: google,hoglin
>>             - const: qcom,sc7280
>>   
>> +      - description: Qualcomm Technologies, Inc. sc7280 CRD Pro platform (newest rev)
>> +        items:
>> +          - const: google,zoglin-sku1536
>> +          - const: google,hoglin-sku1536
> 
> Is there actually such a thing as a 'hoglin-sku1536', i.e. the Pro qcard
> with 64MB of SPI flash, or do they all have 8MB of flash?

The SPI flash is on the CRD mother-board and not on the qcards, so if you replace
the qcards on the CRDs with 64MB flash you would need the hoglin-sku1536 to
boot on those.