From 2e5f032095ff101274dfb03d5fd5e06d9aeb83cd Mon Sep 17 00:00:00 2001 From: Lennert Buytenhek Date: Tue, 7 Oct 2008 13:45:18 +0000 Subject: dsa: add support for the Marvell 88E6131 switch chip Add support for the Marvell 88E6131 switch chip. This chip only supports the original (ethertype-less) DSA tagging format. On the 88E6131, there is a PHY Polling Unit (PPU) which has exclusive access to each of the PHYs's MII management registers. If we want to talk to the PHYs from software, we have to disable the PPU and wait for it to complete its current transaction before we can do so, and we need to re-enable the PPU afterwards to make sure that the switch will notice changes in link state and speed on the individual ports as they occur. Since disabling the PPU is rather slow, and since MII management accesses are typically done in bursts, this patch keeps the PPU disabled for 10ms after a software access completes. This makes handling the PPU slightly more complex, but speeds up something like running ethtool on one of the switch slave interfaces from ~300ms to ~30ms on typical hardware. Signed-off-by: Lennert Buytenhek Tested-by: Nicolas Pitre Tested-by: Peter van Valderen Tested-by: Dirk Teurlings Signed-off-by: David S. Miller --- net/dsa/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'net/dsa/Makefile') diff --git a/net/dsa/Makefile b/net/dsa/Makefile index 8b92123315b8..7fb6f85a69ed 100644 --- a/net/dsa/Makefile +++ b/net/dsa/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_NET_DSA_TAG_EDSA) += tag_edsa.o # switch drivers obj-$(CONFIG_NET_DSA_MV88E6XXX) += mv88e6xxx.o obj-$(CONFIG_NET_DSA_MV88E6123_61_65) += mv88e6123_61_65.o +obj-$(CONFIG_NET_DSA_MV88E6131) += mv88e6131.o # the core obj-$(CONFIG_NET_DSA) += dsa.o slave.o -- cgit v1.2.3