Hi Peter, On 1/27/22 02:00, Peter Geis wrote: > Several io power domains on the Quartz64-A operate at 1.8v. > Add the pmu_io_domains definition to enable support for this. > This permits the enablement of the following features: > sdio - wifi support > sdhci - mmc-hs200-1_8v > > Signed-off-by: Peter Geis <pgwipeout@xxxxxxxxx> > --- > arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts > index d9eb92d59099..33c2c18caaa9 100644 > --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts > +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts > @@ -482,6 +482,19 @@ vcc_sd_h: vcc-sd-h { > }; > }; > https://files.pine64.org/doc/quartz64/Quartz64_model-A_schematic_v2.0_20210427.pdf Could you check with the IO Power Domain Map? > +&pmu_io_domains { > + pmuio1-supply = <&vcc3v3_pmu>; VCC3V3_PMU > + pmuio2-supply = <&vcc3v3_pmu>; VCC3V3_PMU > + vccio1-supply = <&vccio_acodec>; VCCIO_ACODEC > + vccio2-supply = <&vcc_1v8>; VCC_1V8 > + vccio3-supply = <&vccio_sd>; VCCIO_SD > + vccio4-supply = <&vcc_1v8>; ==> VCC1V8_PMU > + vccio5-supply = <&vcc_3v3>; ==> VCC_1V8 > + vccio6-supply = <&vcc1v8_dvp>; VCC1V8_DVP > + vccio7-supply = <&vcc_3v3>; VCC_3V3 > + status = "okay"; > +}; > + > &sdhci { > bus-width = <8>; > mmc-hs200-1_8v;