[Orange Pi One Plus] Not Booting LE 11.0 Nightly

    When I (try to) boot LE11 (stable and latest nightly build), I get the following error on my screen:

    *** Error in mount_flash: mount_common: Could not mount UUID=1507-1311 ***

    ### Starting debugging shell for boot step: mount_flash... type exit to quit ##

    LE10 and LE12 booting normally from the same SD-cards.

    Problem reproduces with LE11 on other/different SD-card, but messages from the serial console show boot process halting for different reasons at different points.

    Some results below. Anybody any clues?

    Booting LibreELEC-H6.arm-11.0-nightly-20230715-9a33cd2-orangepi-one-plus and monitoring the serial port gives some clues:

    ...

    Loading Environment from FAT... Unable to read "uboot.env" from mmc0:1...

    ...

    Hit any key to stop autoboot: 0

    switch to partitions #0, OK

    mmc0 is current device

    Scanning mmc 0:1...

    Found /extlinux/extlinux.conf

    Retrieving file: /extlinux/extlinux.conf

    Ignoring unknown command: disk=UUID=1dbaf091-9f9b-458c-adf2-ac409022867d

    1: LibreELEC

    Retrieving file: /KERNEL

    append: boot=UUID=1507-1311

    Retrieving file: /sun50i-h6-orangepi-one-plus.dtb

    ...

    [ 0.000000] Unknown kernel command line parameters "boot=UUID=1507-1311", will be passed to user space.

    ...

    *** Error in mount_flash: mount_common: Could not mount UUID=1507-1311 ***

    ### Starting debugging shell for boot step: mount_flash... type exit to quit ###

    Rebooting from the same image:

    ...

    Loading Environment from FAT... ** Bad device specification mmc 0 **

    System enters then in U-Boot-terminal. In there mmc cannot be started:

    => mmc list

    mmc@4020000: 0

    => mmc info

    =>

    Restarting then results in:

    U-Boot SPL 2022.10 (Jul 16 2023 - 11:07:20 +0000)

    DRAM: 1024 MiB

    Trying to boot from MMC1

    NOTICE: BL31: v2.8(release):fedfb6b-dirty

    NOTICE: BL31: Built : 09:52:28, Jul 16 2023

    NOTICE: BL31: Detected Allwinner H6 SoC (1728)

    NOTICE: BL31: Found U-Boot DTB at 0xa06f288, model: OrangePi One Plus

    ERROR: PMIC: Found unknown PMIC 00

    ERROR: RSB: read command: 0x103

    ERROR:

    We have identified a similar problem with OrangePI 3 LTE.
    Seems to be a problem with AllwinerH6 and AXP805 RSB.
    The code is in arm-trusted-firmware.
    However, I have tried to change the speed, and it improves, but it still occurs.
    When this occurs, various voltages cannot be changed.
    I replaced the PMIC, but the situation did not improve.
    Also, the AXP805 has an I2C communication method, which we tested on Linux, but it did not work.
    When I plug and unplug the USB power supply with a fine-tuned sense, it sometimes works fine.
    As far as I can see from the RSB waveform, it looks like there is a problem with the PMIC AXP805.
    But I couldn't find a fix for this problem.
    The arm-trusted-firmware also seems to be tied to Linux power management and rebooting, making Linux Reboot unstable.

    Hello mikeneko007.

    Good to see some activity in this post. See my posts on GitHub. I was inspired by this patch that uses I2C instead of RSB on a OrangePi-3-LTS. And this patch, that rolls back Armbian for OPI-One-Plus from RSB to I2C. I had some succes with it, that is successful boots but not reliably. Where in the code did you try some speed changes ; in the RSB-part? Booting an Armbian image works 100% fine, by the way. How to get this Armbian patch consistently in the Libreelec-code?

    (allwinner: uboot: make consistent use of r_i2c across all stages from bootloader to kernel ; In sunxi-6.1 and sunxi-6.5 kernel we have a patch that changes r_rsb to r_i2c. But same change is not done for u-boot. Mixing use of r_rsb and r_i2c seems to cause issues if its also something handled in crust. Hence making it consistent across u-boot and kernel dts files").