Posts by harsszegi

  • u-boot bootcmd question

    Hello,

    totally confused how LibreElec decides what bootcmd to use in u-boot.

    Can anyone shed some light on it?

    How is it decided what board what interface/device shall use for boot?

    I don't fully understand how is it decided whether SPI, NAND, RKNAND, MMC will be used to find the DOS partition.

    Or am I misunderstanding something completely? Is there a guide/doc on this?

    Thanks,

  • Build issue with libtool

    Hello, just did a pull and I can't compile my Rockchip image anymore.

    Any thoughts?

    Thanks,

  • MALI400 issue

    Hello,

    kinda clueless, hoping someone can shed some light on my problem.

    I have enabled CONFIG_MALI400 + CONFIG_MALI400_DEBUG in the kernel config (testing a RK3036).

    I'd say everything appears fine, apart from the "tiny" issue that "a bit after"

    [ 33.078793] initcall init_module+0x0/0x178 [mali] returned 0 after 4001 usecs

    the whole system locks up. If I remove MALI400, everything boots just fine.

    Any idea what might be the issue?

    Thanks,

    [ 33.074335] calling init_module+0x0/0x178 [mali] @ 218

    [ 33.074376] Mali<2>: Inserting Mali v900 device driver.

    [ 33.074381] Mali<2>: Compiled: Feb 26 2018, time: 06:35:09.

    [ 33.074385] Mali<2>: Driver revision: -7.90.001-5070-gd35be6b6b

    [ 33.074394] I : [File] : drivers/gpu/arm/mali400/mali/linux/mali_kernel_linux.c; [Line] : 415; [Func] : mali_module_init(); svn_rev_string_from_arm of this mali_ko is '-7.90.001-5070-gd35be6b6b', rk_ko_ver is '5', built at '06:35:09', on 'Feb 26 2018'.

    [ 33.074398] Mali<2>: mali_module_init() registering driver

    [ 33.074696] Mali<2>: mali_probe(): Called for platform device 10091000.gpu

    [ 33.074709] mali-utgard 10091000.gpu: mali_platform_device->num_resources = 9

    [ 33.074717] mali-utgard 10091000.gpu: resource[0].start = 0x0x10091000

    [ 33.074723] mali-utgard 10091000.gpu: resource[1].start = 0x0x10090000

    [ 33.074729] mali-utgard 10091000.gpu: resource[2].start = 0x0x10093000

    [ 33.074736] mali-utgard 10091000.gpu: resource[3].start = 0x0x10098000

    [ 33.074742] mali-utgard 10091000.gpu: resource[4].start = 0x0x10094000

    [ 33.074749] mali-utgard 10091000.gpu: resource[5].start = 0x0x00000019

    [ 33.074755] mali-utgard 10091000.gpu: resource[6].start = 0x0x0000001a

    [ 33.074761] mali-utgard 10091000.gpu: resource[7].start = 0x0x0000001b

    [ 33.074767] mali-utgard 10091000.gpu: resource[8].start = 0x0x0000001a

    [ 33.074775] D : [File] : drivers/gpu/arm/mali400/mali/platform/rk/rk.c; [Line] : 618; [Func] : mali_platform_device_init(); to add platform_specific_data to platform_device_of_mali.

    [ 33.075244] Mali<2>: Init Mali devfreq

    [ 33.075261] Mali<2>: mali devfreq table count 2

    [ 33.075269] Mali<2>: mali devfreq table array[0] = 200000000

    [ 33.075273] Mali<2>: mali devfreq table array[1] = 400000000

    [ 33.075645] Mali<2>: mali_devfreq_cur_freq: freq = 400000000

    [ 33.075656] Mali<2>: mali_devfreq_target:set_freq = 20654497726464 flags = 0x0

    [ 33.076247] Mali<2>: Mali SWAP: Swap out threshold vaule is 60M

    [ 33.076281] Mali<2>: Mali memory settings (shared: 0x40000000)

    [ 33.076287] Mali<2>: Using device defined frame buffer settings (0x00000000@0x00000000)

    [ 33.076300] Mali<2>: Mali PM domain: Creating Mali PM domain (mask=0x00001000)

    [ 33.076351] Mali<2>: Mali PP: Creating Mali PP core: Mali_PP0

    [ 33.076356] Mali<2>: Mali PP: Base address of PP core: 0x10098000

    [ 33.076582] Mali<2>: Found Mali GPU Mali-400 MP r1p1

    [ 33.076754] Mali<2>: Mali L2 cache: Created Mali_L2: 32K, 4-way, 64byte cache line, 64bit external bus

    [ 33.076776] Mali<2>: Mali MMU: Creating Mali MMU: Mali_GP_MMU

    [ 33.076836] Mali<2>: mali_mmu_probe_irq_acknowledge: intstat 0x3

    [ 33.076840] Mali<2>: Probe: Page fault detect: PASSED

    [ 33.076843] Mali<2>: Probe: Bus read error detect: PASSED

    [ 33.076874] Mali<2>: Mali GP: Creating Mali GP core: Mali_GP

    [ 33.076976] Mali<2>: Mali MMU: Creating Mali MMU: Mali_PP0_MMU

    [ 33.077013] Mali<2>: mali_mmu_probe_irq_acknowledge: intstat 0x3

    [ 33.077016] Mali<2>: Probe: Page fault detect: PASSED

    [ 33.077020] Mali<2>: Probe: Bus read error detect: PASSED

    [ 33.077046] Mali<2>: Mali PP: Creating Mali PP core: Mali_PP0

    [ 33.077051] Mali<2>: Mali PP: Base address of PP core: 0x10098000

    [ 33.077095] Mali<2>: 1+0 PP cores initialized

    [ 33.077111] Mali<2>: Mali GPU Utilization: No platform utilization handler installed

    [ 33.077999] Mali<2>: mali_probe(): Successfully initialized driver for platform device mali-utgard

    [ 33.078462] Mali: Mali device driver loaded

    [ 33.078793] initcall init_module+0x0/0x178 [mali] returned 0 after 4001 usecs

  • nss compile error on Rockchip branch

    Hello,

    nss fails to compile on the latest Rockchip branch.

    Any idea?

    Thanks,

  • RK3036 boot stops - rockchip branch

    Hello,

    trying to get RK3036 Kylin up and running in the Rockchip branch and it gives me the headache.

    1.) I have tried using the solid working .config for the kernel which comes from the original rockchip-linux kernel, which works
    just fine for a Debian rootfs, e.g. whole image boots -> no luck, when switching to rootfs(hopefully) the boot freezes

    2.) I have tried using the Tinkerboard linux.arm.conf which is in the repo, which has the same kernel config in the rockchip-linux kernel,

    so I thought would be a good start -> no luck, boot hangs the same way

    3.) I have copied back the linux.arm.conf (e.g. as .config, recompiled my kernel) in my "ethalon" RK3036 image, surprise the image boots just fine

    4.) I have checked whether I am missing anything in the DTS or not,

    So I am completely puzzled. Can anyone shed some light on what might go sideways? First I thought that the hardcoded tty0 (in the extlinux.cfg

    kernel parameter) causes the issue, but even if I get rid of that the boot still hangs.

    Thanks,

  • Features from Linux kernel that is used by LibreElec

    Hello,

    just bumped into the issue that it doesn't matter what kernel config I use for LibreElec (practically wanted to take over the same kernel config

    for my RockChip device I was using successfully up until now, but the system doesn't boot completely with that).

    Is there any guide which lists what is the minimum featureset from the Linux kernel that is needed for LibreElec to work?

    Thanks,

  • Serial port configuration

    Hello,

    I have a strange issue on my RK3036 the console should be on ttyS2.

    When I boot with the "stock" rockchip kernel this is what I get:

    [ 0.541192] 20060000.serial: ttyS0 at MMIO 0x20060000 (irq = 43, base_baud = 1500000) is a 16550A

    [ 0.543286] console [ttyS2] disabled

    [ 0.563776] 20068000.serial: ttyS2 at MMIO 0x20068000 (irq = 44, base_baud = 1500000) is a 16550A

    [ 1.451507] console [ttyS2] enabled


    however with the LibreElec config I get:

    [ 5.208566] ttyS2 - failed to request DMA


    Any hint what might be wrong? I noticed that the kernel config is completely different in LibreElec what is stored in the rockchip-linux/kernel config

    (e.g. Tinkerboard's config is completely different compared with the corresponding RKxx defconfig (which is practically rockchip_linux-defconfig)

    Thanks,

  • How to dump the rootfs from LibreElec?

    Hello,

    turned on debugging in extlinux.cfg to figure out why my RK3036 doesn't start Kodi, how can I dump the rootfs of the LibreElec image?

    I tried 'rkflashtool r' with various options (offset 0x40000), but couldn't really make it work (only zeroes were read).

    So how can I dump the linux root partition?

    Thanks,

  • Lame debugging question

    Hello Chewitt,

    thanks for the info. UART is not an issue

    I saw the mediacenter service starting at the end of the kernel boot via minicom already.

    U-boot, kernel boots fine, however I don’t have any shell (e.g login prompt - not even via ctrl-alt-f1/2/3), so I can’t get to check OS messages, my hunch is that X fails to start.

    Most probably will check via extlinux.cfg + debugging and then I dump the rootfs and see the logs.

    Mali400 should not be an issues, latest kernel supports that - at least this is what the Rockchip guys claim ;)

  • Lame debugging question

    Hello,

    built a Kylin RK3036 image from the Rockchip branch. It boots fine, it gets to "Reached target Kodi Mediacenter interface".

    However on the TV I see the LibreElec splash and nothing more. After a while the image is restarted.

    I guess I don't have tty console enabled, neither SSH. What should I do to at least be able to get into the shell so that to check some dmesg,

    Kodi logs, whatever to figure out what doesn't start and why?

    Thanks,

  • Compile error in rockchip branch, TinkerBoard

    Hello,

    I get

    config/Makefile:263: *** No gnu/libc-version.h found, please install glibc-dev[el]. Stop.

    make[1]: *** [Makefile:69: all] Error 2

    make[1]: Leaving directory '/home/harsszegi/rockchip/http://LibreELEC.tv/build.LibreELEC-TinkerBoard.arm-9.0-devel/linux-7b43537e/tools/perf'

    Makefile:12: recipe for target 'image' failed

    when using

    PROJECT=Rockchip DEVICE=TinkerBoard ARCH=arm make image

    it appears, like perf doesn't see the glibc project's include files.

    Any advise?

    Thanks,

    p.s.: I have added a "TARGET_KERNEL_PERF" option to devices/options, and modded linux/package.mk so that if this is set to "NO" PKG_BUILD_PERF is also set to "NO", so this clears the problem for now

  • Rockchip branch + master

    Hello,

    I'm trying to use the rockchip branch, however it doesn't compile for me (on ubuntu 17.10). I get a compile error on the glib already.

    Master builds just fine.

    As I checked the rockchip branch is "a bit" outdated.

    Can anyone provide a "guesstimate" when the Rockchip branch will be either synched with the master (I have tried to give it a go, but there

    were substantial changes since) or will be merged back to master?

    Thanks,