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<hanetzer>
anyone know offhand where one could find the pinmux tables/regs for the rk3399?
<robmur01>
the pin summary in the datasheet is usually the most readable for general reference, otherwise the actual register details are all buried in the giant GRF section of the TRM. https://opensource.rock-chips.com/wiki_Main_Page
<robmur01>
(applies beyond RK3399 as well, other than mostly having to dredge the relevant docs from random corners of the internet)
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<hanetzer>
from what I can gather, rk3288 muxes their jtag on sdcard; does 3399 do the same?
<robmur01>
according to the nearest board schematic (which TBH I find even easier to search than the datasheet), the mux seems to be there - in fact there are two, APJTAG and MCUJTAG
<robmur01>
looks like it also has the magic automatic switching thing that Linux turns off
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<hanetzer>
yay.
<hanetzer>
mcu is prolly the smol cortex-0 inside it?
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<robmur01>
yup, I'd guess it's probably a separate scanchain for both the M0s
<hanetzer>
ima grab one of those sdcard to 2.54mm adapters and tinker with things
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