On 20.07.2023 09:48, Hariharan K wrote: > Add the initial device tree support for the Reference Design > Platform(RDP) 415 based on IPQ5018 family of SoC. This patch > carries the support for Console UART and eMMC. > > Signed-off-by: Hariharan K <quic_harihk@xxxxxxxxxxx> > --- [...] > + > +&sdhc_1 { > + pinctrl-0 = <&sdc_default_state>; > + pinctrl-names = "default"; > + mmc-ddr-1_8v; > + mmc-hs200-1_8v; > + max-frequency = <192000000>; > + bus-width = <4>; > + status = "okay"; Since some (but presumably not all) SKUs have SDHCI, you can define the plumbing for it in the common DTSI but only enable it on ones that do (or disable on those that don't) Konrad