PROCESSOR-SDK-AM65X: Write u-boot to MMC without SD card

rei

Hi,

My customers are thinking about AM65x + Linux + WiLink 8.
AM65x has onnly two SDIOs. Therefore, WiLink(SDIO), MMC and SD card can't be connected at same time. It's a bitter decision that they give up SD card(storage).

In this case, how do I write u-boot to MMC?

Normally u-boot of MMC is copied from SD card.
Would you tell me how to write u-boot to MMC?

Regards, Rei

over 5 years ago

0 Keerthy J over 5 years ago

TI__Guru**** 166450 points

Hi Rei,

When you say MMC i believe you mean eMMC. There is a way to boot using UART:

http://software-dl.ti.com/processor-sdk-linux/esd/docs/06_00_00_07/linux/Foundational_Components_U-Boot.html#u-boot-for-am65x-family-of-socs

Once you boot to u-boot prompt you can try to write the u-boot to eMMC using tftp. The above link has both UART boot steps
and eMMC boot steps. In eMMC boot instead of using

fatload mmc

You should be using tftp to download images on to eMMC using ethernet.

Regards,
Keerthy

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PROCESSOR-SDK-AM65X: Write u-boot to MMC without SD card