rellla changed the topic of #linux-sunxi to: Allwinner/sunxi /development discussion - did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait! - https://github.com/linux-sunxi/ - Logs at http://irclog.whitequark.org/linux-sunxi - *only registered users can talk*
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<rellla> can anybody give me a hint, why cma allocation at 0x40000000 via dtb fails? https://pastebin.com/q9gjiTBt
<KotCzarny> isnt that beginning of the ram?
<KotCzarny> which usally has some data already reserved?
<KotCzarny> not to mention kernel option of reserving first few kB of beginning of ram?
<rellla> i changed dts like that https://pastebin.com/5KVtDU0J
<rellla> from where should i start?
<KotCzarny> 0x40000000 + 256M - cma_size - 1M ?
<KotCzarny> if 0x4a.. works why changing it/
<rellla> KotCzarny: increasing cma...
<KotCzarny> then lower that 0x4a.. by amount you increase?
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<rellla> KotCzarny, i'll try 128MB from 0x48000000 on ...
<KotCzarny> also i seem to recall some specific limits where that block has to live
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<rellla> KotCzarny: i have "Loading Ramdisk to 492fd000, end 49fffbd4" - could that be the reason?
<KotCzarny> yeah, although ramdisk gets moved by linux often
<KotCzarny> but yeah, it was related to boot.scr setting
<KotCzarny> disclaimer: it was then i was hacking around uboot and legacy kernel
<KotCzarny> but principle stands
<KotCzarny> also, it had to be in lower 256MB of ram
<KotCzarny> for a10 at least, might be relaxed later
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<rellla> KotCzarny: where do i define the address, where my ramdisk is loaded?
<KotCzarny> for uboot in it's script, but i dont know where linux does the reloc
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<KotCzarny> oh, found the ramdisk note
<rellla> i was using a prebuilt debian image https://wiki.debian.org/InstallingDebianOn/Allwinner ...
<rellla> changing ramdisk_addr_r boot.scr to sth else doesn't have any effect. so i probably have to find out, where the relocation is done!?
<KotCzarny> check what ends up in boot .. line
<KotCzarny> but as i've said, that's where uboot loads things
<KotCzarny> once linux boots it relocs things around on it's own
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<rellla> ok, so i can set initrd_high to move ramdisk below a defined address, but now the device tree is loaded in this region ...
<rellla> is there any place, where i can control this things?
<rellla> ah
<jernej> rellla: yes, that works for me
<rellla> ok, so allocation 128M cma@48000000 works now with setting initrd_high and fdt_high
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<fALSO> sirs, i recently updaded the kernel and uboot on my orangepi pc
<fALSO> now , while debugging via serial, uboot only goes till:
<fALSO> Starting kernel ...
<KotCzarny> don't update working kernels, next please!</joke>
<fALSO> is therey any debugging that i can enable ?
<fALSO> i see the network light blinking
<fALSO> but the light on the board doesnt turn on
<fALSO> going to try an older uboot.... and then an older kernel :-(
<fALSO> i should have backuped
<KotCzarny> if the kernel booted, then you need early_printk (in debug menuconfig)
<KotCzarny> if the kernel crashed and didnt boot, you need to fix the .config and/or boot params
<fALSO> the message "Starting kernel ..." comes from the kernel ? or from uBoot
<KotCzarny> from uboot afair
<fALSO> ok
<fALSO> going to try an older uboot first
<fALSO> or maybe something has changed in the boot.cmd file
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<fALSO> went back to uboot v2018.09
<fALSO> and kernel 4.18.12
<fALSO> finally it booted :-D
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<tautologico> fALSO: do you get hdmi output working with this setup?
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<fALSO> yes, console via framebuffer
<fALSO> and X in framebuffer too
<fALSO> so slow
<fALSO> I normally use them as "servers" to develop stuff
<tautologico> right, I tried a 4.15 kernel with a orangepi one I got recently, couldn't get the console via hdmi
<fALSO> it should work
<fALSO> on even on uBoot ?
<fALSO> not
<tautologico> uboot output appears through hdmi
<tautologico> then "starting kernel" and the screen goes black
<fALSO> tautologico, do you have a "BIG" monitor ?
<tautologico> keyboard works
<fALSO> 2560x1080?
<tautologico> I guess I tested it on a 1080p, yes
<fALSO> I have a problem with that, jernej made some patches for me
<tautologico> 1920x1080
<fALSO> on my monitor it didnt display because of that...
<fALSO> so its not the same problem
<fALSO> I have tested hdmi on the "Orange PI PC" and "Orange PI PC 2"
<tautologico> which kernel version? I think some video stuff on H3 is pretty recent in mainline
<tautologico> are you using buildroot/another tool or doint it manually? newer stable buildroot fails when building uboot, LTS version has old kernel
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<fALSO> tautologico, doing it manually
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<curlybracket> Hello. Is drm/sun4i capable of managing multiple pipelines at the same time? If not, do you know what is missing?
<curlybracket> Thanks to your recent patchsets, both the HDMI and the DSI panel work well with sun4i-drm individually. But when combined, only the DSI output is active and I get this in the log: https://gist.github.com/zavorka/1cc8dea642f6a7f8a1a940ec5ea29f73
<curlybracket> My intention is to get 2 independent screens on A64; one over MIPI-DSI and the other over HDMI. I've got a similar setup working with the BSP kernel, so I have no doubts that the hardware is capable of running such a configuration, I'd very much like to avoid the BSP kernel though.
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