#linux-rockchip on 2024-03-05 — irc logs at libera.irclog.whitequark.org

2023-07-10 07:36 mmind00 changed the topic of #linux-rockchip to: Rockchip development discussion | public log at https://libera.irclog.whitequark.org/linux-rockchip

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11:19 <maz> does anyone know if rv1108 and rv1106 are related? I can't find a datasheet for the latter.

11:27 <mmind00> maz: comparing devicetrees, it doesn't look like it ... uart2: serial@ff4c0000 in rv1106.dtsi vs. uart2: serial@10210000 in rv1108.dtsi

11:28 <mmind00> rv1103 and rv1106 seem related

11:28 <beeble> rv1108 a7 + dsp, rv1106 a7 + mcu + npu, different isps, avalable as sip etc

11:31 <maz> mmind00: thanks. where did you see this rv1106.dtsi?

11:32 <maz> (looks like rv1106 boards in rpi pico format have become available, which is of interest for a side project...)

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11:35 <mmind00> maz: https://github.com/rockchip-linux/kernel/blob/develop-5.10/arch/arm/boot/dts/rv1106.dtsi

11:38 <maz> mmind00: ah, great! guess I'll order a couple of boards and see if I remember what 32bit is like... ;-)

11:40 <mmind00> maz: looking forward to mainline patches then ... those 32bit pull requests often feel so empty these days

11:44 <maz> mmind00: that's the way they should be. hopefully there isn't too much to do...

11:45 <mmind00> maz: looking at that kernel branch (grepping for rv1106), there really isn't much ... just the usual ... a clock controller and a bunch of different GRF offsets in a number of drivers

11:47 <maz> mmind00: ordering now!

11:49 <mmind00> maz: also at least a "datasheet" seems publically available https://datasheet.lcsc.com/lcsc/2401261534_Rockchip-RV1106G2_C5272606.pdf ... not a TRM though

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11:55 <maz> mmind00: yeah, that's lacking details, and I'm not quite ready yet to spin my own board with a QFN128.

11:55 <beeble> https://files.luckfox.com/wiki/Luckfox-Pico/PDF/Rockchip%20RV1106%20Datasheet%20V1.3-20230522.pdf newer revision of the datasheet

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20:26 <minute> what's the actually correct cpu freq driver in mainline for rk3588? CONFIG_ARM_SCMI_CPUFREQ?

20:27 <minute> we just built a debian kernel for rk3588 and everything works, just i don't get any cpu freq info vs my monolithic kernel build... (same dts) so trying to figure out what's missing

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20:28 <minute> apparently it's not rockchip_cpufreq (which doesn't probe with error -22)

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21:12 <CounterPillow> mainline has no cpufreq support for rk3588 atm

21:14 <CounterPillow> I think Collabora has a somewhat hacky solution in one of their kernel trees, but I don't think it properly implements the silicon-dependant voltage/clock management

21:26 <minute> ah sorry, i meant the collabora tree...

21:27 <minute> CounterPillow: do you know what they're using to do the freq scaling that exists?

21:30 <CounterPillow> no

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21:47 <mmind00> minute: https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/commit/9c90c5032743a0419bf3fd2f914a24fd53101acd

21:49 <mmind00> and https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/issues/7#note_152389 for all the information on the why (i.e. separate regulators on a number of boards)

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22:19 <minute> mmind00: thank you very much!

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