Thanks. So I cloned https://github.com/smaeul/linux/commits/riscv/d1-wip 5.2GB... oof!
But it is not clear to me where I get a kernel configuration from? Do I just use the *src/linux/arch/riscv/configs/defconfig* file? Does that one have everything the rv86 needs? On Tue, May 24, 2022 at 4:35 PM Samuel Holland <sam...@sholland.org> wrote: > On 5/24/22 6:22 PM, Bram Stolk wrote: > > Thanks. This is all very useful information. > > I will attempt a build! > > I take it that Ethernet does work with a mainline build? > > Yes, Ethernet works fine on the mainline-based branch. The upstream driver > did > not even need any changes for D1 support. > > Regards, > Samuel > > > On Tue, May 24, 2022 at 10:52 AM Samuel Holland <sam...@sholland.org > > <mailto:sam...@sholland.org>> wrote: > > > > Hi, > > > > On 5/19/22 5:09 PM, Bram Stolk wrote: > > > Hi, > > > > > > I have a Sipeed Lichee RV86 < > https://linux-sunxi.org/Sipeed_Lichee_RV> panel. > > > It basically adds a screen/ethernet/wifi for the Lichee RV compute > module > > (riscv64). > > > > > > I created an SDCARD using OpenixCard > > <https://github.com/YuzukiTsuru/OpenixCard> > > > tool and the manufacturer's image: *LicheeRV_Debian_86_480p.img* > > > > > > I'm pretty happy with the result. It's pretty nice to have a > straightforward > > > linear framebuffer. > > > So I decided to remove all X11 stuff, and keep it as CLI with > framebuffer. > > > > > > > > > Currently, I am trying to find out what is involved when I want to > upgrade the > > > kernel. > > > > You can upgrade to the mainline-based U-Boot and kernel by following > the > > instructions here: > > > > https://linux-sunxi.org/Allwinner_Nezha#Manual_build > > > > The only adjustment you need to make is selecting the right > devicetree for your > > board. You can do that by using `lichee_rv_86_panel_defconfig` > instead of > > `nezha_defconfig` when building U-Boot. > > > > One thing to note is that mainline Linux does not yet support the > LCD panel used > > in the Sipeed Lichee RV 86 Panel. The display engine is supported, > and I ported > > over the panel driver, but for some reason it doesn't work, and I > have not > > debugged it. So if you switch now, you will lose your display > output. (Or this > > is an opportunity if you want to help get the panel working on > mainline.) > > > > > I understand it uses U-BOOT. > > > > > > I am not sure where U-BOOT gets the kernel image from? > > > > > > mmcblk0 179:0 0 15G 0 disk > > > ├─mmcblk0p1 179:1 0 3.9M 0 part > > > ├─mmcblk0p2 179:2 0 252K 0 part > > > ├─mmcblk0p3 179:3 0 252K 0 part > > > ├─mmcblk0p4 179:4 0 10.1M 0 part > > > ├─mmcblk0p5 179:5 0 504K 0 part > > > ├─mmcblk0p6 179:6 0 13.8M 0 part > > > └─mmcblk0p7 179:7 0 8G 0 part / > > > > > > I don't see kernel images in the root filesystem. > > > > Allwinner's downstream BSP U-Boot uses the Android boot flow, so one > of those > > partitions is an Android boot.img (no filesystem, just the boot.img > file written > > to the block device). Based on the partition sizes, I am guessing > that one or > > both of mmcblk0p4 or mmcblk0p6 are boot.img partitions. > > > > Upstream U-Boot loads the kernel from a filesystem, as you would > expect. > > > > > I am able to mount mmcblk0p1 but that fs just contains: > > > bootlogo.bmp > > > magic.bin > > > > > > Does the U-BOOT and kernel reside on the SOC maybe? Or is it on > the SDCARD > > as well? > > > > U-Boot is on the SD card as well, at specific offsets/sector numbers > from the > > beginning of the card (sector 16, 256, 24576, or 32800). See the > wiki page for > > more explanation. > > > > > I also tried holding down the "FEL" key when powering up to enter a > > "DOWNLOAD" mode. > > > When I do that, I indeed do not get boot output on the serial > port. But > > nothing > > > else shows up on serial. I get no U-BOOT prompt, which I was > expecting? > > > > FEL mode is very minimal and does not itself touch the serial port. > It only > > communicates over USB. Generally, the way to use FEL is to use it to > download > > and execute U-Boot. Then you can interact with U-Boot over the > serial console. > > > > Regards, > > Samuel > > > > > > > > -- > > Owner/Director of Game Studio Abraham Stolk Inc. > > Vancouver BC, Canada > > b.st...@gmail.com <mailto:b.st...@gmail.com> > > > > -- Owner/Director of Game Studio Abraham Stolk Inc. Vancouver BC, Canada b.st...@gmail.com -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/linux-sunxi/CABYXEkvR-iC3BEw2b%3Dsx_SkATdoLjd6Bw2ez9XiRxUk4Pf6KAA%40mail.gmail.com.
