> I've tried accessing MDIO address space and MAC controller address space in > u-boot with `md` and `mw` [1]. From the result, i guess the CLK_BUS is the > System Bus clock (AHB Bus clock), and the CLK_MAC is the clock shared by > both MDIO bus and MAC. The MAC has a internal clock divider to divide the > input clock(54MHz in common) to a configurable variable rate. In general, sharing a clock is not a problem. The clock API does reference counting. So if two consumers enable the clock, it will not be disabled until two consumes disable the clock. So it should not be an issue for both the MAC and the MDIO driver to consume the clock. However, the funny PHY reset code is going to be key here. We need to understand that in more detail. Talking about details, you commit messages need improving. The commit message is your chance to answer all the reviewers questions before they even ask them. Removing a binding was always going to need justification, so you needed to have that in the commit message. In order to review a DT bindings, having an overview of what the hardware actually looks like is needed. So that is something which you can add to the commit messages. Please take a look at your patches from the perspective of a reviewer, somebody how knows nothing about this device. What information is needed to understand the patches? Andrew