Hi, thanks, got it compiled and booting...currently looking around how to do things ;) have successful booted linux+dtb+initrd manually and pinged my router as network test. now i looks how to include scripts that i don't need to write all again and again... documentation says that a direktory will be used in boards directory, but this seems not working so i used the config-approach DEFAULT_ENVIRONMENT_PATH=arch/arm/boards/rockchip-rk3568-evb/defaultenv i'm not sure how the saveenv works (where the environment is stored...i have no /dev/env0). in uboot i can define a device (mmc), partition (1:1), filename (uboot.env) for storing environment onto a fat-partition. i guess you have something similar too regards Frank > Gesendet: Dienstag, 04. Januar 2022 um 11:51 Uhr > Von: "Sascha Hauer" <sha@xxxxxxxxxxxxxx> > An: "Frank Wunderlich" <frank-w@xxxxxxxxxxxxxxx> > Cc: barebox@xxxxxxxxxxxxxxxxxxx > Betreff: Re: barebox - rk3568 > > Hi Frank, > > On Tue, Jan 04, 2022 at 09:39:05AM +0100, Frank Wunderlich wrote: > > Hi, > > > > i have a prototype rk3568 board (bpi-r2-pro). > > > > is it possible to flash only barebox instead of uboot? in documentation i found only "creating SD-card", but i dont want to break existing partitions. > > The rk3568 has a fixed boot order of eMMC, SD, USB. The EVB board has a > pushbutton to shortcircuit a pin of the eMMC. When pushed, the eMMC > becomes invalid and the board boots from SD card. I could imagine it's > the same on your board, so you could create an SD card and boot from > that. Other than that an image that starts from SD card can also start > from eMMC, the images are the same. > You could also start from USB, the barebox tree has a rk3568 USB loader > tool. > > > > > https://www.barebox.org/doc/latest/boards/rockchip.html#rockchip-rk3568 > > > > says it starts from sector 32, my first block for uboot (idblock.bin=spl+raminit) starts at 64, full uboot in partition at 8M. > > > > As it differs a bit from evb can i add new dts like in uboot? > > Yes, you can. See > https://www.barebox.org/doc/latest/devel/porting.html?highlight=new%20board > for more information how. Also have a look at commit b9f1bb8563ba > which adds the EVB board support. You'll have to do the same for your > board. > One thing you'll need is a sdram-init.bin file. You can extract it from > your BSP. > > Regards, > Sascha > > -- > Pengutronix e.K. | | > Steuerwalder Str. 21 | http://www.pengutronix.de/ | > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
