Hi Heiko, On Wed, Nov 20, 2019 at 7:23 PM Heiko Stübner <heiko@xxxxxxxxx> wrote: > > Hi Jagan, > > Am Mittwoch, 20. November 2019, 14:45:35 CET schrieb Jagan Teki: > > On Wed, Nov 20, 2019 at 6:55 PM Heiko Stübner <heiko@xxxxxxxxx> wrote: > > > Am Mittwoch, 20. November 2019, 12:39:22 CET schrieb Jagan Teki: > > > > Carrier board often referred as baseboard. For making > > > > complete SBC, the associated SOM will mount on top of > > > > this carrier board. > > > > > > > > Radxa has a carrier board which supports on board > > > > peripherals, ports like USB-2.0, USB-3.0, HDMI, MIPI DSI/CSI, > > > > eDP, Ethernet, PCIe, USB-C, 40-Pin GPIO header and etc. > > > > > > > > Currently this carrier board can be used together with > > > > VMARC RK3399Por SOM for making Rock PI N10 SBC. > > > > > > > > So add this carrier board dtsi as a separate file in > > > > ARM directory, so-that the same can reuse it in both > > > > arm32 and arm64 variants of Rockchip SOMs. > > > > > > Do you really think someone will create an arm32 soc using that > > > carrier board? > > > > Yes, we have Rock Pi N8 which is using same carrier board design with > > (+ external codec) on top of RK3288 SOM. I didn't mentioned on the > > commit message since radxa doesn't officially announced on the > > website. > > > > > > > > Similarly so far I don't think we haven't even seen a lot of reuse > > > of existing carrier boards at all, other than their initial combination. > > > > > > So maybe just having the content of your > > > rockchip-radxa-carrierboard.dtsi > > > in > > > rockchip/rk3399pro-rock-pi-n10.dts > > > from patch 5 might be a better start - at least until there is any > > > further usage - if at all? > > > > But, this particular design has proper use case. > > 1. rk3399pro SOM + carrier board (Rock Pi N10) > > 2. rk3288 SOM + carrier board (Rock Pi N8) > > > > > > > > Also rockchip-radxa-carrierboard might even be overly generic > > > as there may be multiple carrierboards from Radxa later on. > > > > I'm slightly disagree of having overlay here, since these are fixed > > design combinations. where SOM with respective carrier board is > > mandatory to make final board. Understand that we can have a > > maintenance over-ahead if we have multiple carrier boards, but right > > now radxa has only one carrier board with 2 sets of SOM's combinations > > that indeed fit like a dev board, so there is unused carrier board. > > All is good ... with that information from above (rk3288) this definitly > makes more sense :-) > > The naming of the file is still a tiny struggle though. Does this board > maybe have some actual product name or is it really just called > "carrierboard"? :-) True, I felt the same. Just now Tom has named this as 'Dalang Carrier board' so we can have rockchip-radxa-dalang.dtsi or rockchip-radxa-dalang-carrier.dtsi as file names. or let me know if you have any suggestions on the file name? Jagan.