Writing Arm64 Assembly for #PinePhone 😬
https://github.com/lupyuen/incubator-nuttx/blob/pinephone/arch/arm64/src/qemu/qemu_lowputc.S#L74-L89
Here's how we check #PinePhone's UART Port in Arm64 Assembly
https://lupyuen.github.io/articles/uboot?88#wait-for-uart-ready
And why we're doing #PinePhone UART in Arm64 Assembly
https://lupyuen.github.io/articles/uboot?89#nuttx-uart-macros
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Here's how we check #PinePhone's UART Port in Arm64 Assembly
https://lupyuen.github.io/articles/uboot?88#wait-for-uart-ready