Created attachment 144016 [details] Add support for Broadcom 5725/5761/5762 UART The Broadcom 5725, 5761, and 5762 devices have a UART which can be configured to be accessed via ssh, telnet, or (for 5725) IPMI SoL. This patch adds support for this UART (tested on 5762). Since it has a register shift, a field for this vale was added into struct pci_id, and the bus_alloc_resource() call was modified to account for the larger size when regshft is non-zero.
A commit references this bug: Author: marcel Date: Wed Aug 12 15:48:15 UTC 2015 New revision: 286668 URL: https://svnweb.freebsd.org/changeset/base/286668 Log: Add support for the Broadcom TruManage integrated serial port. PR: 191266 Changes: head/sys/dev/uart/uart_bus_pci.c
Remove 191265 as a dependency. Being able to detect and attach has a higher priority, as one cannot resolve the buffering related problem without having uart(4) attached.
Thanks for the patch and sorry for the delay.
If you could use it, I should be able to get you a NIC with this UART on it for testing.