This series is based on tip of torvalds/master. The first patch adds register definitions from Broadcom docs.
The second patch adds the BCM54612E PHY ID, flags, and device-specific RGMII internal delay initialization. I tested on a custom board with an Aspeed AST2500 SOC with its second MAC connected to this PHY. Xo Wang (2): net: phy: broadcom: Update Auxiliary Control Register net: phy: broadcom: Add support for BCM54612E