I decided to test latest U-Boot, following instructions in doc/README.rockchip. The instructions seemed clear and I could build this easily.
However, there seems to be an issue when I save the environment. Any ideas? => saveenv Saving Environment to MMC... Writing to MMC(0)... OK => reset resetting ... U-Boot TPL 2020.01-rc1-00213-g0f282c1876af-dirty (Nov 07 2019 - 15:21:44) Trying to boot from BOOTROM Returning to boot ROM... U-Boot SPL 2020.01-rc1-00213-g0f282c1876af-dirty (Nov 07 2019 - 15:21:44 -0300) Trying to boot from MMC2 U-Boot 2020.01-rc1-00213-g0f282c1876af-dirty (Nov 07 2019 - 15:21:44 -0300) Model: Radxa ROCK Pi 4 DRAM: 2 GiB Cannot find regulator pwm init_voltage MMC: dwmmc@fe320000: 1, sdhci@fe330000: 0 Loading Environment from MMC... OK In: serial@ff1a0000 Out: serial@ff1a0000 Err: serial@ff1a0000 Model: Radxa ROCK Pi 4 ## Error: Can't overwrite "serial#" ## Error inserting "serial#" variable, errno=1 initcall sequence 000000007ffc10b8 failed at call 0000000000202a20 (err=-1) ### ERROR ### Please RESET the board ### _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
