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armbian / linux-rockchip

Improved Rockchip Linux
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arm64: dts: turing-rk1: device tree cleanup and use correct stdout-path #101

Closed Joshua-Riek closed 11 months ago

Joshua-Riek commented 11 months ago

I cleaned up the device tree for the Turing RK1 and adjusted the stdout path to use UART 9.

This device uses UART 9 with a baud rate of 115200 for the console instead of the standard UART 2 with a baud rate 1500000 for Rockchip devices. I wouldn't say I like this, but it is necessary for the hardware..

rpardini commented 11 months ago

Hey @Joshua-Riek, what if in the aliases { ... } you'd invert uart2 and uart9, so that /dev/ttyS2 would be kept as debug UART? It might reduce the surprise factor for users...

Joshua-Riek commented 11 months ago

I was able to get UART2 and UART9 working at the same time, I made a weird mistake with U-Boot that was causing the problem. However, I would like to stay close to the proposed mainline patch for this board. I have already expressed my concerns to the author, and hopefully, it will be considered.

https://lore.kernel.org/lkml/20231007043600.151908-4-CFSworks@gmail.com/T/