[PATCH 4/4] riscv: dts: sophgo: Enable SPI NOR node for SG2042_EVB_V2

[Troy Mitchell]

On Fri, Aug 15, 2025 at 02:17:10PM +0800, Zixian Zeng wrote:
> On Fri, Aug 15, 2025 at 11:56:22AM +0800, Chen Wang wrote:
> > 
> > On 8/13/2025 4:33 PM, Zixian Zeng wrote:
> > > Enable SPI NOR node for SG2042_EVB_V2 device tree
> > >
> > > Signed-off-by: Han Gao <rabenda.cn at gmail.com>
> > > Signed-off-by: Zixian Zeng <sycamoremoon376 at gmail.com>
> > > ---
> > >   arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts | 12 ++++++++++++
> > >   1 file changed, 12 insertions(+)
> > >
> > > diff --git a/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts b/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts
> > > index 46980e41b886ce17dacce791fa5f2cef14cfa214..7001d8ffdc3e04c5a5cd5da85a4fb1c0351eb9a5 100644
> > > --- a/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts
> > > +++ b/arch/riscv/boot/dts/sophgo/sg2042-evb-v2.dts
> > > @@ -226,6 +226,18 @@ &sd {
> > >   	status = "okay";
> > >   };
> > >   
> > > +&spifmc1 {
> > > +	status = "okay";
> > > +
> > > +	flash at 0 {
> > > +		compatible = "jedec,spi-nor";
> > > +		reg = <0>;
> > > +		spi-max-frequency = <100000000>;
> > > +		spi-tx-bus-width = <4>;
> > > +		spi-rx-bus-width = <4>;
> > > +	};
> > > +};
> > > +
> > 
> > Only spifmc1 on EVB_V2? What about spifmc0?
> > 
> Yes, EVB_V2 has only one spifmc1.
> I have checked schematics which can be opened by OrCAD:
> https://github.com/sophgo/sophgo-hardware/blob/master/SG2042/SG2042-x4-EVB/sch/SG2042_EVB_V2_20230302A_BOM.DSN
> https://github.com/sophgo/sophgo-hardware/blob/master/SG2042/SG2042-x8-EVB/SG2042_EVB_V11_20220902_BOM.DSN
> 
> For your convenience, I have exported them to PDF:
> https://github.com/sycamoremoon/linux-riscv/tree/schematic
Acked-by: Troy Mitchell <troy.mitchell at linux.spacemit.com>

Best Regards,
Troy
> > Otherwise:
> > 
> > Reviewed-by: Chen Wang <unicorn_wang at outlook.com>
> 
> Thanks for your reviewing.
> 
> Best Regards,
> Zixian
> 
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