1 What: /sys/bus/platform/drivers/aspe 1 What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/uart\*
2 Date: September 2021 2 Date: September 2021
3 Contact: Oskar Senft <osk@google.com> 3 Contact: Oskar Senft <osk@google.com>
4 Chia-Wei Wang <chiawei_wang@asp 4 Chia-Wei Wang <chiawei_wang@aspeedtech.com>
5 Description: Selects the RX source of the U 5 Description: Selects the RX source of the UARTx device.
6 6
7 When read, each file shows the 7 When read, each file shows the list of available options with currently
8 selected option marked by brac 8 selected option marked by brackets "[]". The list of available options
9 depends on the selected file. 9 depends on the selected file.
10 10
11 e.g. 11 e.g.
12 cat /sys/bus/platform/drivers/ 12 cat /sys/bus/platform/drivers/aspeed-uart-routing/\*.uart_routing/uart1
13 [io1] io2 io3 io4 uart2 uart3 13 [io1] io2 io3 io4 uart2 uart3 uart4 io6
14 14
15 In this case, UART1 gets its i 15 In this case, UART1 gets its input from IO1 (physical serial port 1).
16 16
17 Users: OpenBMC. Proposed changes sho 17 Users: OpenBMC. Proposed changes should be mailed to
18 openbmc@lists.ozlabs.org 18 openbmc@lists.ozlabs.org
19 19
20 What: /sys/bus/platform/drivers/aspe 20 What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/io\*
21 Date: September 2021 21 Date: September 2021
22 Contact: Oskar Senft <osk@google.com> 22 Contact: Oskar Senft <osk@google.com>
23 Chia-Wei Wang <chiawei_wang@asp 23 Chia-Wei Wang <chiawei_wang@aspeedtech.com>
24 Description: Selects the RX source of IOx s 24 Description: Selects the RX source of IOx serial port. The current selection
25 will be marked by brackets "[] 25 will be marked by brackets "[]".
26 Users: OpenBMC. Proposed changes sho 26 Users: OpenBMC. Proposed changes should be mailed to
27 openbmc@lists.ozlabs.org 27 openbmc@lists.ozlabs.org
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