Booting from EMMC on a NanoPi Neo Core

[niks]

Hello. After burning Efuse to the Nanopi Neo Core, I can't boot from emmc. It works from the SD card, so I try loading everything into emmc: spl, uboot. But spl doesn't find u-boot, as far as I understand. I'm using the u-boot and dts config from the Nanopi Neo, with some edits to mmc2, since it's not available in the Neo.

U-Boot SPL 2024.07 (Feb 25 2026 - 15:51:42 +0300)
DRAM: 512 MiB
Trying to boot from MMC1
CMD_SEND:0
               ARG                      0x00000000
               MMC_RSP_NONE
CMD_SEND:8
               ARG                      0x000001aa
               RET                      -110
CMD_SEND:55
               ARG                      0x00000000
               RET                      -110
CMD_SEND:0
               ARG                      0x00000000
               MMC_RSP_NONE
CMD_SEND:1
               ARG                      0x00000000
               RET                      -110
Card did not respond to voltage select! : -110
spl: mmc init failed with error: -95
SPL: failed to boot from all boot devices
### ERROR ### Please RESET the board ###