[U-Boot] [bug report] sunxi: booting from eMMC

[Jagan Teki]

On Sun, Oct 2, 2016 at 1:07 PM, Alexandr Bochkarev
<aneox.inbox at 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.