On Tue, Mar 15, 2022 at 08:24:54AM -0300, Fabio Estevam wrote: > Hi Simon, > > On Tue, Mar 15, 2022 at 2:54 AM Simon Glass wrote: > > > +For example, on iMX6:: > > + > > + lpuart3: serial@5a090000 { > > + compatible = "fsl,imx8qm-lpuart"; > > I found this part confusing as i.MX6 does not have lpuart. > > > +For example, on iMX6, put this in your xxx-u-boot.dtsi file:: > > + > > + &pd_dma { > > + u-boot,dm-pre-proper; > > + }; > > + > > + &pd_dma_lpuart3 { > > + u-boot,dm-pre-proper; > > Same here, these pd_dma and pd_dma_lpuart3 nodes do not exist for i.MX6. Yes, lets make sure we have examples here that are correct for a given SoC. -- Tom