On 25. 03. 19 9:08, Michal Simek wrote: > On 22. 03. 19 15:39, Jean-Jacques Hiblot wrote: >> >> The purpose of this series is to provide the SPL with ability to apply >> overlays for u-boot. this is only a RFC so far, to get a feedback on the >> approach. >> >> Our use-case is the support of the daughter boards of the AM65x EVM. In >> Linux, each board is supported by a unique overlay. The presence of the >> boards is detected at runtime, and some useful features (like USB) are >> implemented on those daughter boards. Instead of providing multiple dtbs >> and fall in a combinatorial pit, we propose to use DT overlays. > > Not sure if you have it on these boards too but I expect you are able to > detect base board with this code board/ti/common/board_detect.c > > How do you detect these daughter cards? Is there additional I2C > connection to them and they have on board eeprom with any format for > detection? > Something similar what it is part of FMC standard/VITA 57.1 with using > FRU spec for daughter card description? > Anyway we are working on FRU parser exactly for this purpose. > > Do you also need to apply that overlays in SPL? > Isn't it enough to apply them as the part of board_fdt_blob_setup()?
I see v2 now but without answering my questions here. M _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
