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Kernel: Add character device driver for the RPi "mini UART" (UART1)
While the PL011-based UART0 is currently reserved for the kernel console, UART1 is free to be exposed to the userspace as `/dev/ttyS0`. This will be used as the stdout of `run-tests-and-shutdown.sh` when testing the AArch64 kernel.
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@ -442,6 +442,7 @@ elseif("${SERENITY_ARCH}" STREQUAL "aarch64")
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Arch/aarch64/RPi/GPIO.cpp
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Arch/aarch64/RPi/InterruptController.cpp
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Arch/aarch64/RPi/Mailbox.cpp
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Arch/aarch64/RPi/MiniUART.cpp
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Arch/aarch64/RPi/MMIO.cpp
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Arch/aarch64/RPi/SDHostController.cpp
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Arch/aarch64/RPi/Timer.cpp
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