3f51d8888a
Some firmware revisions provide different DTB tree that include odd MDIO placement in the tree. This commit adds support for 2 new buses: - MRML bridge (PCIB subordinate) - MDIO nexus (MRML subordinate) This allows for the correct MDIO attachment with both - new and old firmware. Obtained from: Semihalf Sponsored by: Cavium Differential Revision: https://reviews.freebsd.org/D5070