To exclude board factor, i get another board, Cubieboard2, desolder nand chip and put emmc on sdc2 lines. Boot kernel from sd on sdc0 lines, kernel init emmc well, in 4 bit mode
So, some trouble in u-boot is exist, PLEASE HELP! U-Boot SPL 2016.11-rc1-g4dc34be My board - A20: U-Boot with my config EMMC on sdc0 lines U-Boot output: >> Trying to boot from MMC1 >> mmc_load_image_raw_sector: mmc block read error >> SPL: failed to boot from all boot devices >> ### ERROR ### Please RESET the board ### MarsBoard - A20: U-Boot with my config and mmc extra slot config set to 2 EMMC on sdc2 lines EMMC works from linux with 4-bit bus width, if boot from SD card on sdc0 lines U-Boot output: >> Trying to boot from MMC2 >> mmc_load_image_raw_sector: mmc block read error >> SPL: failed to boot from all boot devices >> ### ERROR ### Please RESET the board ### Cubieboard2 - A20: U-Boot with Cubieboard_defconfig and mmc extra slot config set to 2 EMMC on sdc2 lines EMMC works from linux with 4-bit bus width, if boot from SD card on sdc0 lines U-Boot output: >> Trying to boot from MMC2 >> mmc_load_image_raw_sector: mmc block read error >> SPL: failed to boot from all boot devices >> ### ERROR ### Please RESET the board ### _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot