On Tue, Dec 20, 2022 at 10:30:32AM +0530, Rajendra Nayak wrote: > > 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@xxxxxxxxxxx> > > > Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> > > > Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx> > > > --- > > > 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. With such a configuration how does the bootloader know it should pass the kernel the device tree for 'hoglin-sku1536' (pro) and not the non-pro variant? IIUC the device tree is selected based on pin strappings on the mother-board, not the qcard.
