Hi,
I'm facing the same issue with A33 board with eMMC (SanDisk SDIN7DP2-4G), I
don't understand, it suppose to work.
Have you had any progress for the reason behind?
Thanks and all the best wishes.
在 2016年10月2日星期日 UTC+8下午10:07:51，Александр Бочкарев写道：
>
> 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.
>
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> *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. set *valid_signature = 1
> *force,
> has no positive effect.
>
>
> 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 ###
>
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