topic Re: imx8qxp eMMC boot issue in i.MX Processors

imx8qxp eMMC boot issue

zhengguang_yang — Mon, 30 Aug 2021 06:09:44 GMT

I'm using imx8qxp, Yocto 3.0.

The same image boot normally on the SD card, but after burning to EMMC, there is no log output in the uboot phase, and the kernel phase is normal.

I feel this phenomenon is so strange and I don't have any ideas, so I'd like to ask if you have any good ideas

jimmychan — Mon, 30 Aug 2021 07:23:27 GMT

Which board are you using?

Do you change the boot mode to boot from the EMMC?

zhengguang_yang — Mon, 30 Aug 2021 07:36:37 GMT

Hi Jimmychan:

Thank you for your reply.

We use our customized board.

Boot mode has been modified to boot from EMMC.

jimmychan — Tue, 31 Aug 2021 04:13:20 GMT

After you boot up from the SD card, can you mount the EMMC in Linux? Do you see any content in the EMMC?

zhengguang_yang — Tue, 31 Aug 2021 06:35:58 GMT

After starting from the SD card, we can successfully mount the EMMC, and the same content as the SD card can be seen in the EMMC.

Unplug the SD card, the EMMC boot normally, but there is no log output in the uboot phase.

jimmychan — Tue, 31 Aug 2021 07:03:36 GMT

"EMMC boot normally, but there is no log output in the uboot phase".

Sorry, what does it means? do you mean the board can normal boot up but no console output from debug uart?

zhengguang_yang — Tue, 31 Aug 2021 09:50:34 GMT

Yes, there is no log output in the uboot phase, and the kernel phase is normal.

jimmychan — Tue, 31 Aug 2021 12:45:26 GMT

Have you try to program the u-boot (in your SD card) to the EMMC?