| Chia-Wei Wang | 0884005 | 2022-02-01 17:30:27 +1030 | [diff] [blame] | 1 | What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/uart\* |
| Chia-Wei Wang | c680797 | 2021-10-22 10:36:16 +1030 | [diff] [blame] | 2 | Date: September 2021 |
| 3 | Contact: Oskar Senft <osk@google.com> |
| 4 | Chia-Wei Wang <chiawei_wang@aspeedtech.com> |
| 5 | Description: Selects the RX source of the UARTx device. |
| 6 | |
| 7 | When read, each file shows the list of available options with currently |
| 8 | selected option marked by brackets "[]". The list of available options |
| 9 | depends on the selected file. |
| 10 | |
| 11 | e.g. |
| Chia-Wei Wang | 0884005 | 2022-02-01 17:30:27 +1030 | [diff] [blame] | 12 | cat /sys/bus/platform/drivers/aspeed-uart-routing/\*.uart_routing/uart1 |
| Chia-Wei Wang | c680797 | 2021-10-22 10:36:16 +1030 | [diff] [blame] | 13 | [io1] io2 io3 io4 uart2 uart3 uart4 io6 |
| 14 | |
| 15 | In this case, UART1 gets its input from IO1 (physical serial port 1). |
| 16 | |
| 17 | Users: OpenBMC. Proposed changes should be mailed to |
| 18 | openbmc@lists.ozlabs.org |
| 19 | |
| Chia-Wei Wang | 0884005 | 2022-02-01 17:30:27 +1030 | [diff] [blame] | 20 | What: /sys/bus/platform/drivers/aspeed-uart-routing/\*/io\* |
| Chia-Wei Wang | c680797 | 2021-10-22 10:36:16 +1030 | [diff] [blame] | 21 | Date: September 2021 |
| 22 | Contact: Oskar Senft <osk@google.com> |
| 23 | Chia-Wei Wang <chiawei_wang@aspeedtech.com> |
| 24 | Description: Selects the RX source of IOx serial port. The current selection |
| 25 | will be marked by brackets "[]". |
| 26 | Users: OpenBMC. Proposed changes should be mailed to |
| 27 | openbmc@lists.ozlabs.org |