IMX93 uses UUU to burn uboot problems

[jack_huang1]

Dear；

       Currently NXP IMX93, model is PIMX9352CVUXMAA, software BSP version is Linux 6.1.22_2.0.0, storage uses LPDDR4+EMMC configuration, EMMC model is SDINBDG4-16G-XI1; When UUU is used to write uboot, run the uuu -V -b emmc flash.bin command. If the MMC cannot be identified, the following information is displayed:

U-Boot SPL 2023.04-lf_v2023.04+g6b39c4f44 (Dec 09 2023 - 06:56:58 +0000)

SOC: 0xa0009300

LC: 0x40010

M33 prepare ok

Normal Boot

Trying to boot from BOOTROM

Boot Stage: USB boot

Find img info 0x88000000, size 416

Download 1654784, Total size 1655808

NOTICE:  BL31: v2.8(release):automotive-13.0.0_2.1.0-0-g99195a23d

NOTICE:  BL31: Built : 06:14:17, Jun  2 2023

U-Boot 2023.04-lf_v2023.04+g6b39c4f44 (Dec 09 2023 - 06:56:58 +0000)

CPU:   i.MX93(52) rev1.0 1700 MHz (running at 1692 MHz)

CPU:   Consumer temperature grade (0C to 95C) at 32C

Reset cause: WDOG3 (0x21)

Model: VT SBC SMARC IMX93 CB board

DRAM:  2 GiB

tcpc_init: Can't find device id=0x52

setup_typec: tcpc portpd init failed, err=-19

tcpc_init: Can't find device id=0x51

setup_typec: tcpc port2 init failed, err=-19

tcpc_init: Can't find device id=0x50

setup_typec: tcpc port1 init failed, err=-19

pca953x gpio@22: Error reading output register

Core:  219 devices, 32 uclasses, devicetree: separateVT102 | 脱机 | ttyUSB0

MMC:   FSL_SDHC: 0, FSL_SDHC: 1

Loading Environment from nowhere... OK

[*]-Video Link 0adv7535_mipi2hdmi hdmi@3d: Can't find cec device id=0x3c

fail to probe panel device hdmi@3d

fail to get display timings

probe video device failed, ret -19

        [0] lcd-controller@4ae30000, video

        [1] dsi@4ae10000, video_bridge

        [2] hdmi@3d, panel

adv7535_mipi2hdmi hdmi@3d: Can't find cec device id=0x3c

fail to probe panel device hdmi@3d

fail to get display timings

probe video device failed, ret -19

In:    serial

Out:   serial

Err:   serial

BuildInfo:

  - ELE firmware version 0.0.10-af252062

MMC: no card present

UID: 0x3dc76249 0x234933d1 0x2bff409f 0xbf0d0444

Detect USB boot. Will enter fastboot mode!

Net:   pca953x gpio@22: Error reading output register

         
         Is LPDDR4 not configured at present the cause of the problem? Excuse me: Is there any IMX93 debugging guide documentation?

         Thanks!

         Best Regards!

[Zhiming_Liu]

If the board can't detect the MMC, it  can't flash the firmware.

MMC: no card present

-->Does this problem occur all the time or occasionally? This is a very critical issue.

[jack_huang1]

Dears；

           At present, it has been verified on the development board of Feiling that all are normal, and my own board has just been welded and debutted, and it is found that EMMC cannot be recognized, resulting in no burning,  which is being excluded.

         Best Regards!

[jack_huang1]

Dear，

        The problem has been eliminated, the hardware design in the EMMC line CLK reserved capacitance to the ground, after removing it.

        Best Regards！