Posts by gulp79

  • Remote power trouble

    Quote from bumerc

    gulp79

    u-boot_ddr4

    EUREKA!!!

    Finally is all ok, 3GB and power bug resolved!!!

    Many many thanks bumerc

    in attachement the complete log also with poweroff and poweron by remote.

    Great work man!!!

  • Remote power trouble

    no.... i can boot from sd (aml_sdc_burn.UBOOT used as u-boot.bin.sd.bin)

    but not with u-boot from internal storage... (UBOOT.USB and also bootloader.partition used as u-boot.ini)

    once i write to internal memory the uboot this is the log:

  • Remote power trouble

    seems that i can boot with ChimeyJimmey link

    MEGA

    i've extracted

    aml_sdc_burn.UBOOT

    and

    bootloader.PARTITION

    and now:

    I'm testing it right now.... i don't know if the bug is still there or not

  • Remote power trouble

    Quote from bumerc

    gulp79

    update

    u-boot_ddr4

    still bootloop.. i think i'm going to stay with 2gb of ram ;)

    Btw thank you for all your efforts!!

    This is the last log:

  • Remote power trouble

    Quote from bumerc

    please also test this uboot from the other github

    u-boot

    this u-boot can boot:

    but the power on bug is present:

    i've libreelec booted, turn off my board with remote and the system log this:

    after that i cannot power on with remote

  • Remote power trouble

    this is log of another u-boot (from beelink official firmware for GT1 Ultimate)

    this version con pass ram check at: DDR4 chl: Rank0+1 @ 912MHz - PASS

    Btw also this uboot version has the power on bug on H96 pro +

  • Remote power trouble

    i've tried another u-boot (from ROM SCV1-GT1_Ultimate for beelink GT1 Ultimate 3G DDR4).

    The box boot, this is the log: (DDR @ 636MHz :huh: )

    But once shutdown, the remote cannot wake the box up, so like the original one

  • Remote power trouble

    Quote from bumerc

    gulp79

    you have strange DDR4, I have the feeling that your DDR4 ≠ is a real DDR4.

    We can try to gradually reduce the Clk rate and hope it works

    Please only test u-boot.bin.sd.bin, it makes no sense at the moment to install u-boot.bin in emmc.

    u-boot@696Mhz

    nothing...still bootloop

    btw, with originlal u-boot, the ddr is detected as 792Mhz:

    Code
    ...
DDR4 chl: Rank0+1 @ 792MHz - PASS
Rank0: 2048MB(auto)-2T-18
Rank1: 1024MB(auto)-2T-18
DataBus test pass!
AddrBus test pass!
...

  • Remote power trouble

    Quote from bumerc

    gulp79

    next build

    bumerc ok, i've wiped bootloader on mmc and then booted SD2 (your u-boot) and i've this loop:

  • Remote power trouble

    Quote from bumerc

    Yes, please do this update

    after last update, i've this loop:

    the only way to restore was to short pin 29&30 of mmc and start an USB restore. (otherwise the board was not detected neither in usb).

  • Remote power trouble

    Quote from bumerc

    gulp79

    Rank1 (1024MB) could not be initialized, i will see what I can do.

    What is the size of the single RAM chip - 12x8, 13.2x9 or 14x9 mm? Please measure on the front and on the back of the PCB.

    Ok,

    size is the same on front and on back side, and is 14mm x 0,9mm,

    Attached there are some photos (chip on front side have different ID of back chips).

    i can try another update with

    Quote from bumerc

    UPDATE

    u-boot_ddr4

    use this dtb for Gigabit Ethernet

    gxm_q201_3g_gbit_phy.dtb


    or is better to wait?

  • Remote power trouble

    seems that using dtb for 2Gb of ram make the difference.

    So Booting with gxm_q201_2g.dtb or gxm_q200_2g.dtb is ok, i was able to write uboot to /dev/bootloader

    now i can boot the (old) SD1 and my remote can shutdown and poweron my Alfawise H96 Pro+ 3Gb

    but i've only 2 GB =O

    So, somenthing in new uboot cannot detect all my ram.

    bumerc , do you think is possible to fix also this problem so boards with 3Gb can use all available ram?

    For now, thank you!

    In attachment there is the UART log of my board booting from u-boot from mmc and load libreelec from SD1, hope you can find the problem.

  • Remote power trouble

    Quote from bumerc

    gulp79

    before you go to sleep.. please test the next build:shy:

    u-boot_chl_auto


    Ok,

    i've prepared SD2 (/dev/sdf)

    burned your "LibreELEC-S912.arm-8.90.6-h96pp-emergency-sdcard.img"

    copied "gxm_q201_3g.dtb" (and after i've tried also gxm_q200_3g.dtb") over dtb.img

    then injected u-boot.bin.sd.bin into SD2

    After i've done a boot with SD1 (my libreelec sd card),

    erased bootloader

    Code
    dd if=/dev/zero of=/dev/env bs=8M count=1 && sync
dd if=/dev/zero of=/dev/bootloader

    then rebooted with SD2

    this time u-boot starts, but the emergency systems dosn't boot, this is the UART log:

    so i cannot write new u-boot.bin to eMMC.......

    a little better than previous attempt

  • Remote power trouble

    Quote from bumerc

    gulp79

    No Log = No Help

    Sorry, i've tried the u-boot update without connecting serial (hoping in good luck).

    As soon i've some time (my son use the box every two seconds....so i've to try at nigth :dodgy: ) i'll upload your u-boot (ddr4) and i'll provide you the log.

    In meantime, i've solder the pins to onboard serial port, so i can connect a lot faster nowI

    Thank you for your support!

  • Remote power trouble

    Quote from bumerc

    ok., please test this version

    u-boot.bin.sd.bin_clk_792Mhz

    tip:

    when reinstall - fill the space for the u-boot with zeros

    Code
    dd if=/dev/zero of=/dev/sdX bs=1 count=442
dd if=/dev/zero of=/dev/sdX bs=512 skip=1 seek=1 count=2047

    then

    Code
    dd if=u-boot.bin.sd.bin of=/dev/sdX bs=1 count=442 && sync
dd if=u-boot.bin.sd.bin of=/dev/sdX bs=512 skip=1 seek=1 && sync

    My board with DDR4 hangs at boot also with this u-boot... restored with Amlogic USB burning tool full restore.

  • Remote power trouble

    I've just done...

    booted libreelec, erased bootloader,

    rebooted with second sd card prepared with:

    sudo dd if=u-boot.bin.sd.bin of=/dev/sdX bs=1 count=442 && sync

    sudo dd if=u-boot.bin.sd.bin of=/dev/sdX bs=512 skip=1 seek=1 && sync

    but is not working....seems a problem with ddr4 memory... this is the log:

    i've restored Android with amlogic usb burning tool.

    Maybe i need a different u-boot.

  • Remote power trouble

    Quote from bumerc

    Sorry, yandex disk automatically compresses the folders in zip format, I did not see that. I will update the link in the installation guide. You only need the * .img file

    LibreELEC-S912.arm-8.90.6-h96pp-emergency-sdcard.img.tar.gz — Яндекс.Диск

    Edit: Try this tutorial, use win32disk manager with "Verify" option. "Verify" is equivalent to the linux command "sync"

    Can i replace "u-boot.bin" inside LibreELEC-S912.arm-8.90.6-h96pp-emergency-sdcard.img.tar.gz with your "u-boot.bin.sd.bin" for DDR4 and use the emergency LE instead to short pin 29 and 30?

    So i want to rename "u-boot.bin.sd.bin" to "u-boot.bin" and overwrite "u-boot.bin" on "SD card 2" with LE Emergency...

  • Remote power trouble

    Quote from bumerc

    gulp79

    yuwT4IYj3TrgBU

    uart

    8mQwqj9s3TrgBe

    upgrade mode

    i've just done a boot recording UART log.

    DDR seems running at 792Mhz...strange....

    "DDR4 chl: Rank0+1 @ 792MHz - PASS"

    Here the boot log (Libreelec SD) captured on serial console:

    Do you think i can use your u-boot.bin compiled for ddr @1067Mhz?