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To enable the uartlite driver in the linux kernel you either have to integrate it or build it as kernel module (.ko). You can enable it with:

Code Block
make menuconfig
---> Device Drivers ---> Character devices ---> Serial drivers ---> ARM AMBA PL010 serial port support

Or you can do this in the .config file with either of the following lines:

Code Block
# integrate into the kernel
SERIAL_AMBA_PL010=y
# build as loadable module
SERIAL_AMBA_PL010=m

Devicetree


Here's how the devicetree entry could look like.

https://www.kernel.org/doc/Documentation/devicetree/bindings/serial/pl011.yaml


Code Block
  serial@80120000 {
      compatible = "arm,pl011", "arm,primecell";
      reg = <0x80120000 0x1000>;
      interrupts = <0 11 4>;
      dmas = <&dma 13 0 0x2>, <&dma 13 0 0x0>;
      dma-names = "rx", "tx";
      clocks = <&foo_clk>, <&bar_clk>;
      clock-names = "uartclk", "apb_pclk";
  };


Mainline Status

This driver is currently in sync with mainline kernel except for the following:

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Change Log

2020.2

  • None

2021.1

  • None

2021.2

  • None


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