On Fri, May 24, 2019 at 09:00:24AM +0000, Rasmus Villemoes wrote: > The 88e6250 (as well as 6220, 6071, 6070, 6020) do not support > multi-chip (indirect) addressing. However, one can still have two of > them on the same mdio bus, since the device only uses 16 of the 32 > possible addresses, either addresses 0x00-0x0F or 0x10-0x1F depending > on the ADDR4 pin at reset [since ADDR4 is internally pulled high, the > latter is the default]. > > In order to prepare for supporting the 88e6250 and friends, introduce > mv88e6xxx_info::dual_chip to allow having a non-zero sw_addr while > still using direct addressing. > > Signed-off-by: Rasmus Villemoes <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]> Andrew
