What:		/sys/bus/platform/drivers/aspeed-uart-routing/*/uart*
Date:		September 2021
Contact:	Oskar Senft <osk@google.com>
		Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Description:	Selects the RX source of the UARTx device.

		When read, each file shows the list of available options with currently
		selected option marked by brackets "[]". The list of available options
		depends on the selected file.

		e.g.
		cat /sys/bus/platform/drivers/aspeed-uart-routing/*.uart_routing/uart1
		[io1] io2 io3 io4 uart2 uart3 uart4 io6

		In this case, UART1 gets its input from IO1 (physical serial port 1).

Users:		OpenBMC.  Proposed changes should be mailed to
		openbmc@lists.ozlabs.org

What:		/sys/bus/platform/drivers/aspeed-uart-routing/*/io*
Date:		September 2021
Contact:	Oskar Senft <osk@google.com>
		Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Description:	Selects the RX source of IOx serial port. The current selection
		will be marked by brackets "[]".
Users:		OpenBMC.  Proposed changes should be mailed to
		openbmc@lists.ozlabs.org