Hi Yangyu On 10:10 Mon 17 Jun , Yangyu Chen wrote: > > > > On Jun 17, 2024, at 06:53, Yixun Lan <dlan@xxxxxxxxxx> wrote: > > > > On 01:20 Mon 17 Jun , Yangyu Chen wrote: > >> Banana Pi BPI-F3 motherboard is powered by SpacemiT K1[1]. > >> > > .. snip > >> + uart0: serial@d4017000 { > >> + compatible = "intel,xscale-uart"; > > are you sure the uart IP is fully compatible with xscale? > > otherwise I'd suggest to introduce a vendor specific one.. > > > > Sounds like a good idea. I will add it soon. > > >> + reg = <0x0 0xd4017000 0x0 0x100>; > >> + interrupts = <42>; > >> + clock-frequency = <14000000>; > >> + reg-shift = <2>; > >> + reg-io-width = <4>; > >> + status = "disabled"; > >> + }; > >> + }; > >> +}; > > it's better to also add other uart nodes, I feel it's more complete > > > > I should test it before adding them. However, if I remember correctly, > there is only one UART on BPI-F3. I'm not talking about BPI-F3 specifically, but from the SoC perspective you can check vendor's dts file of k1-x.dtsi, there are uart0-uart9(uart1 is missing).. > > > -- > > Yixun Lan (dlan) > > Gentoo Linux Developer > > GPG Key ID AABEFD55 -- Yixun Lan (dlan) Gentoo Linux Developer GPG Key ID AABEFD55