Friendlyelec NanoPi M5

[Simon Glass]

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
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.

Thanks,
Simon