net: pse-pd: realtek-pse-mcu: add UART transport

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Add the serdev (UART) transport for the Realtek PSE MCU core. It registers
the MCU as a serdev device and provides the send/recv callbacks the core
uses to exchange the 12-byte frames, receiving asynchronously via the
serdev receive_buf callback.

The baud rate defaults to 19200 and can be overridden per board with the
"current-speed" property.

Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260813222036.873930-5-jelonek.jonas@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Jonas Jelonek 2026-08-13 22:20:35 +00:00 • committed by Paolo Abeni

parent 4c088d9eb3

commit 5cc93d9897

3 changed files with 176 additions and 0 deletions

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11

drivers/net/pse-pd/Kconfig

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1

drivers/net/pse-pd/Makefile

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164

drivers/net/pse-pd/realtek-pse-mcu-uart.c

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