Date: Sat, 21 Sep 2024 20:51:04 +0200 From: =?utf-8?Q?Klaus_K=C3=BCchemann?= <maciphone2@googlemail.com> To: Emmanuel Vadot <manu@bidouilliste.com>, Mark Millard <marklmi@yahoo.com>, pfaller@protonmail.com, freebsd-arm@freebsd.org Subject: Re: Rockchip RK3328 Rock64 HDMI Message-ID: <6B056224-6771-42B9-B9FF-1A64E54F9D35@googlemail.com> In-Reply-To: <20240921193608.d88ec27b1da889a52c1f6e3e@bidouilliste.com> References: <5kADboXE-OUia2ncm13XjDesvDmjB3tjWSyr3ytCpa5XYof9xOrL9AbRownQoRG9eJcJpYswqjbMt0P0XiZfs7KNNfiNF7vQ93m72mm_Fyk=@protonmail.com> <4F94C5BF-B5D8-4EA0-8B4E-695BBC28D693@googlemail.com> <20240921132533.8b8cf0229a38275128ef0ccc@bidouilliste.com> <D2B71952-7F81-4B19-A47A-252C4797D1E9@googlemail.com> <20240921193608.d88ec27b1da889a52c1f6e3e@bidouilliste.com>
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thanks for the clarification, Manu, ..that`s what I=E2=80=99d expected.=20 Now it`s clear for the first where to begin to get efifb working at = first. After removing the dust I can read a shiny Rock64 V2.0 on the board :-) If anybody of you has ever seen any HDMI-output on RK3328 with FreeBSD`s = fdt/u-boot setup , it would help to tell the (u-boot/fdt-and = board-)versions.`hope I=E2=80=99ll find some years old u-boot-hacks for = this board in my dustbin :-) Thx=20 Regards K.=20 > Am 21.09.2024 um 19:36 schrieb Emmanuel Vadot <manu@bidouilliste.com>: >=20 > On Sat, 21 Sep 2024 15:49:51 +0200 > Klaus K=C3=BCchemann <maciphone2@googlemail.com> wrote: >=20 >> Hi Manu, >>=20 >> thanks for letting me know. It`s the first time I looked deeper into = this issue. >> So you mean that adding RK3328 codes to your DRM-subtree is even = necessary=20 >> to get efifb console output ? >=20 > No, efifb will automagically works if u-boot setup the display (which > it should and did iirc but it's been a while) >=20 >> The current state of (at least my) Rock64 is a complete HDMI blank = screen without any electrical reaction at boot . >> Can`t find any specific Rockchip frame buffer code at first view, so = for now I`m a bit confused where to start=20 >> to get any HDMI-output.u-boot or firmware or your drm-subtree, or is = there a specific Rockchip bug somewhere???=20 >=20 > As said above for efifb u-boot needs to setup hdmi etc ... If it's not > done right now maybe some config is needed. > drm-subtree is needed if one wants 2D accel (but needs code), for 3D = we > will need lima ported as this GPU isn't supported by panfrost iirc. >=20 >> Regards >> K. >>=20 >>=20 >>> Am 21.09.2024 um 13:25 schrieb Emmanuel Vadot = <manu@bidouilliste.com>: >>>=20 >>>=20 >>> Hi Klaus, >>>=20 >>> On Sat, 21 Sep 2024 01:06:21 +0200 >>> Klaus K=C3=BCchemann <maciphone2@googlemail.com> wrote: >>>=20 >>>> First time since years I switched the dusty Rock64 on :-) >>>> yes, you?re right, still not fixed : >>>> dmesg: >>>> .. >>>> clknode_link_recalc: Attempt to use unresolved linked clock: = hdmi_phy >>>> Cannot get frequency for clk: hdmi_phy, error: 9 >>>> ? >>>> So you can file a bug report to: https://bugs.freebsd.org = <https://bugs.freebsd.org/>; >>>> You can attach dmesg there (or what I would prefer: send dmesg to = https://dmesgd.nycbug.org<https://dmesgd.nycbug.org/>) >>>=20 >>> This isn't a bug, the hdmi_phy clock is supposed to be exported by >>> the hdmi-phy driver (see the hdmiphy: phy@ff430000 in the DTS), = since we >>> don't have a driver for this, it's not exported and we warn about = this. >>>=20 >>>> I guess you don`t want to port any linux drivers at first attempt = :-) but instead fix the issue=20 >>>> to get the framebuffer driver working( with it`s restrictions e.g. = no 4K) >>>>=20 >>>> Regards >>>> K. >>>=20 >>> Cheers, >>>=20 >>>>=20 >>>>> Am 20.09.2024 um 19:22 schrieb Christoph Pfaller = <pfaller@protonmail.com>: >>>>>=20 >>>>> Hello! >>>>>=20 >>>>> I recently switched to FreeBSD on my Rock64 due to appearing = kernel panics when running the board with Linux. So far I enjoy the = operating system. However; there is one little annoyance - the = integrated HDMI output does not work. So I want to change that. >>>>>=20 >>>>> As we are on ARM my first intention was looking into the device = tree for the rk3328. I compared it to Linux device tree and also found = some missing parts. My next step was looking into the drivers itself and = as the Linux drivers sources are available here = https://github.com/torvalds/linux/tree/master/drivers/gpu/drm/rockchip I = got some idea how the corresponding driver should look like. >>>>>=20 >>>>> However, I am unsure how I should proceed getting HDMI to work. = Accodring to https://wiki.freebsd.org/arm/RockChip HDMI works for the = rockchip rk3399 but I could not find any drivers neither in the = freebsd-src or drm-kmod (I am new to FreeBSD so i don't know if this is = even the right place to look for). I hope someone with more technical = knowledge about FreeBSD or HDMI can provide me with some guidance on = where I have to look and work on. >>>>>=20 >>>>> Greetings >>>>> pf0 >>>>>=20 >>>>>=20 >>>>=20 >>>>=20 >>>=20 >>>=20 >>> --=20 >>> Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org> >>=20 >>=20 >>=20 >=20 >=20 > --=20 > Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>
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