Hi Alexey, On Mon, 25 May 2026 at 01:57, Alexey Charkov <[email protected]> wrote: > > On Sat, May 23, 2026 at 4:41 AM Simon Glass <[email protected]> wrote: > > > > Hi Alexey, > > > > On Fri, 22 May 2026 at 00:24, Alexey Charkov <[email protected]> wrote: > > > > > > Hi Simon, > > > > > > On Fri, May 22, 2026 at 3:22 AM Simon Glass <[email protected]> wrote: > > > > > > > > Hi, > > > > > > > > I am trying to make Friendlyelec NanoPi M5 (RK3576) work with > > > > mainline. I found the note about needing a workaround so have tried > > > > kwiboo/rk3576 at > > > > > > > > https://github.com/Kwiboo/u-boot-rockchip.git > > > > > > > > I am building like this: > > > > > > > > $ > > > > ROCKCHIP_TPL=~/dev/rkbin/bin/rk35/rk3576_ddr_lp4_2112MHz_lp5_2736MHz_v1.09.bin > > > > BL31=~/dev/rkbin/bin/rk35/rk3576_bl31_v1.20.elf um build > > > > nanopi-m5-rk3576 > > > > > > FWIW, upstream TF-A master branch works well as BL31 on RK3576, though > > > it's most probably unrelated to the issue you're seeing > > > > OK, thanks. > > > > > > > > > Image 'simple-bin' is missing optional external blobs but is still > > > > functional: tee-os > > > > > > > > /binman/simple-bin/fit/images/@tee-SEQ/tee-os (tee-os): > > > > See the documentation for your board. You may need to build Open > > > > Portable > > > > Trusted Execution Environment (OP-TEE) and build with > > > > TEE=/path/to/tee.bin > > > > > > > > Image 'simple-bin-spi' is missing optional external blobs but is still > > > > functional: tee-os > > > > > > > > /binman/simple-bin-spi/fit/images/@tee-SEQ/tee-os (tee-os): > > > > See the documentation for your board. You may need to build Open > > > > Portable > > > > Trusted Execution Environment (OP-TEE) and build with > > > > TEE=/path/to/tee.bin > > > > > > > > $ dd if=/tmp/b/nanopi-m5-rk3576/u-boot-rockchip.bin of=/dev/sda seek=64 > > > > 18579+0 records in > > > > 18579+0 records out > > > > 9512448 bytes (9.5 MB, 9.1 MiB) copied, 1.99658 s, 4.8 MB/s > > > > > > > > I get no serial output at all booting from SD card. Is there a special > > > > trick I am missing? I have confirmed that the Alpine Linux image works > > > > OK. > > > > > > Dumb question: did you flip the switch on the back side of the board > > > from FSPI1 to UFS/SD? > > > > Yes it is set to UFS/SC. > > > > > > If yes, then having no serial output at all most likely means the > > > boost.bin trick from Jonas' WIP patch didn't apply, because the DDR > > > trainer unconditionally spits out some logs on the debug UART during > > > early init. > > > > > > The SD card might also be finicky, so if you happen to have an SPI > > > flash equipped board then you can flash U-boot there instead via > > > Maskrom. Just remove all other storage, connect a USB A-A cable to the > > > top USB 3.0 port, and power it up while holding the maskrom button. > > > > I am not sure how to power the board other than through the > > > > > > Then: > > > rockusb download-boot rk3576_loader_fspi1_v1.13.100.bin > > > # note the zero below, because u-boot-rockchip-spi.bin already has a > > > 64-sector offset baked in, unlike u-boot-rockchip.bin: > > > rockusb write-file 0 u-boot-rockchip-spi.bin > > > rockusb reset-device > > > > With this I was able to get it to SPL: > > > > DDR 2f85f4b2d4 cym 24/11/07-19:07:28,fwver: v1.09 > > In > > ch0 ttot6 > > ch1 ttot6 > > ch0 ttot7 > > LPDDR5, 2736MHz > > channel[0] BW=16 Col=10 Bk=16 CS0 Row=16 CS=1 Die BW=16 Size=1536MB > > ch1 ttot7 > > channel[1] BW=16 Col=10 Bk=16 CS0 Row=16 CS=1 Die BW=16 Size=1536MB > > Manufacturer ID:0xff > > CH0 RX Vref:24.1%, RX DQS Vref:29.6%, TX Vref:19.0%,0.0% > > DQ roc: > > p4 n2, p6 n7, p5 n0, p1 n0, p0 n0, p0 n4, p3 n0, p7 n0, p3 n0, > > p4 n2, p5 n0, p2 n2, p0 n2, p7 n0, p2 n0, p6 n0, p7 n0, p6 n4, > > > > DQ rds:l0 l0 h1 l0 l0 l0 l0 l0, l0 l0 h1 l0 l0 l0 l0 l0 > > DQS roc: p2, n0, p1, n0 > > > > CH1 RX Vref:25.7%, RX DQS Vref:29.2%, TX Vref:20.0%,0.0% > > DQ roc: > > p2 n0, p7 n0, p2 n0, p1 n0, p2 n0, p0 n1, p3 n0, p5 n0, p7 n0, > > p6 n0, p3 n2, p3 n0, p2 n0, p2 n0, p6 n0, p0 n0, p0 n2, p0 n0, > > > > DQ rds:l0 h2 l0 l0 l0 l0 l0 h1, l0 l0 l0 l0 h1 l0 h1 l0 > > DQS roc: p2, n0, p2, n0 > > > > stride=0x3, ddr_config=0x2 > > hash bank_mask0-3 0x0 0x2100 0x44200 0x88400, rank_mask0 0x0 > > change to F1: 534MHz > > ch0 ttot6 > > ch1 ttot6 > > change to F2: 1320MHz > > ch0 ttot8 > > ch1 ttot8 > > change to F3: 1968MHz > > ch0 ttot6 > > ch1 ttot6 > > change to F0: 2736MHz > > ch0 ttot7 > > ch1 ttot7 > > out > > > > U-Boot SPL 2026.01-00014-gf6f1066339a5 (May 22 2026 - 18:32:58 -0600) > > Trying to boot from MMC1 > > Card did not respond to voltage select! : -110 > > spl: mmc init failed with error: -95 > > Error: -95 > > SPL: Unsupported Boot Device! > > SPL: failed to boot from all boot devices > > ### ERROR ### Please RESET the board ### > > > > > > It seems to boot from SPI but then try to switch to MMC? > > Sifting through my local tree I also noticed I've got the following > patch to set the pin config for SPI flash on NanoPi M5: > > https://github.com/flipperdevices/u-boot/commit/ffb0d6c9b4893d6a8c2fe51efc3dd5914857615e > > Would you mind giving it a try? > > The node itself and its properties are already in the upstream DTS, so > it _shouldn't_ really be required, but maybe the bootph-* markers > didn't propagate for me as-is and I didn't have the willpower to > investigate further :) > > > I also found that if I 'dd if=/tmp/image of=/dev/sda count=2000' from > > the good Alpine image, it ends up in the U-Boot I built (although of > > course I have not built the earlier parts). > > Another way to get it to boot without relying on a particular storage > configuration or the prebuilt image is to load an upstream binary > directly to RAM over Maskrom: > > export BL31=[...] ROCKCHIP_TPL=[...] > make nanopi-m5-rk3576_defconfig rockchip-ramboot.config > make -j$(nproc) > rockusb download-sram u-boot-rockchip-usb471.bin > rockusb download-ddr u-boot-rockchip-usb472.bin > > SPI boot is supposed to work fine though. Did you use the > u-boot-rockchip-spi.bin or u-boot-rockchip.bin image? > > > > Loader binary can be assembled from rkbin blobs, or alternatively > > > taken from e.g. here: > > > https://dl-linux-images.flipp.dev/u-boot/u%3D1afdc52186635bb599642064ee7c23f539b73e3c/rk%3D495eec7a93220b1269e915e684c5667250462a3d__tfa%3Dfc3691b5022abd9feba6c37330005b7437cccf9f/nanopi-m5/rk3576_loader_fspi1_v1.13.100.bin > > > > > > rockusb tool: cargo install rockusb --example rockusb --features=nusb > > > > Thanks very much for taking the time to help with this! > > Always welcome!
It was booting from UFS, but since U-Boot SPL didn't have it enabled, it didn't complete. So I've erased that and am using your method of booting over USB - BTW it is very slow, doesn't seem to use bulk mode. The board is now working in my lab! Thanks again. Regards, Simon
