Already tried. The same output:

mmc_load_image_raw_sector: mmc block read error SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ###

2 окт. 2016 г., в 19:38, Jagan Teki jagannadh.teki@gmail.com написал(а):

On Sun, Oct 2, 2016 at 1:07 PM, Alexandr Bochkarev aneox.inbox@gmail.com wrote:

...

Hi!

I am trying to boot my A20 board from eMMC KLM4G1FE3B-B001, but has no success. Commenting mmc_change_freq has no effect. U-Boot 2016.03 just says Could not determine boot source

I have found, that it stucks in sunxi_mmc_has_egon_boot_signature.

int sunxi_mmc_has_egon_boot_signature(struct mmc *mmc) { char *buf = malloc(512); int valid_signature = 0;

   if (buf == NULL)
           panic("Failed to allocate memory\n");

   if (mmc_getcd(mmc) && mmc_init(mmc) == 0 &&
       mmc->block_dev.block_read(&mmc->block_dev, 16, 1, buf) == 1 &&
       strncmp(&buf[4], "eGON.BT0", 8) == 0)
           valid_signature = 1;

   free(buf);
   return valid_signature;

}

mmc_init(mmc) return no errors, seems good, but block_read returns 0, seems it cant read emmc.

U-Boot 2016.09 says:

mmc_load_image_raw_sector: mmc block read error SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ###

Can you try it on master once?

-- Jagan Teki Free Software Engineer | www.openedev.com U-Boot, Linux | Upstream Maintainer Hyderabad, India.