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OpenNuvoton / NUC970_Linux_Kernel

Linux Kernel Source Code for NUC970 Series Microprocessor
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HMI-N9H30 board DTS file #78

Open Barmallini opened 1 year ago

Barmallini commented 1 year ago

Where to get dts file for this board?

ychuang3 commented 1 year ago

The default config does not enable device tree. The kernel features and drivers are configured with menuconfig.

Barmallini commented 1 year ago

How to enable device tree to make modification (add interrupts, gpio, interfaces, etc)

ychuang3 commented 1 year ago

Device tree enable/disable is configured from kernel menuconfig. You can find related information by google search. It's not specific to n9h30.

Barmallini commented 1 year ago

actually, it's specific for example, Allwiner F1C200 (https://github.com/thirtythreeforty/businesscard-linux/blob/master/board/businesscard/v1/dts/businesscard.dts) for board and https://github.com/thirtythreeforty/linux/blob/f1c100s-v5.2.2/arch/arm/boot/dts/suniv-f1c100s.dtsi for SOC

where to find N9H30.dtsi ?

ychuang3 commented 1 year ago

As of version 3.10, the device tree is not widely used. Although NUC970 has support, it is recommended to use menuconfig only. If you must use the device tree, you may face many trial and error. I am not sure. The device tree file are in the arch/arm/boot/dts directory, which should be well known. You can find 9h30-nudesign.dts here, please modify it based on your board configuration. In addition, kernel menuconfig must open CONFIG_OF to enable device tree support..