On Thu, May 28, 2015 at 06:42:15PM -0700, Mathieu Olivari wrote: > This patch set adds initial support for AR8xxx switches using the DSA > subsystem. It currently supports QCA8337 switch, and can be extended to > other hardware in the same family. > > This switch was already discussed in the following thread: > https://www.marc.info/?t=142601417400004&r=1&w=2 > > Below is a typical picture of a QCA8337 used in a standard home gateway > configuration: > > +-----------+ +-----------+ > | | SGMII | | > | eth0+-------+ +------ 1000baseT MDI ("WAN") > | wan| | 7-port +------ 1000baseT MDI ("LAN1") > | CPU | | ethernet +------ 1000baseT MDI ("LAN2") > | | RGMII | switch +------ 1000baseT MDI ("LAN3") > | eth1+-------+ w/5 PHYs +------ 1000baseT MDI ("LAN4") > | lan| | | > +-----------+ +-----------+ > | MDIO | > \------------/ > > The switch is connected to the CPU using 2 xMII interfaces. As DSA only > supports one logical interface to the switch, we split the switch using > device-tree information into 2 parts: > *port 6 (one of the xMII switch port) will be dedicated to one > particular Ethernet port. From a system perspective, it will be seen as > a regular PHY. > *port 0 (the other xMII port) will act as the switch master interface FYI: I have patches which allow DSA to use two cpu interfaces. Seems to work on my DIR665 with a Marvell Switch. I will post the patches as an RFC. Andrew -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
