Commit f896424c authored Nov 02, 2005 by Matt Porter Committed by Jeff Garzik Nov 05, 2005

[PATCH] phy address mask support for generic phy layer



Adds a phy_mask field to struct mii_bus and uses it.  This field
indicates each phy address to be ignored when probing the mdio bus.

This support is needed for the fs_enet and ibm_emac drivers to be
converted to the generic phy layer among other drivers. Many systems
lock up on probing certain phy addresses or probing doesn't return
0xffff when nothing is found at the address. A new driver I'm
working on also makes use of this mask.

Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>

parent 4371dc6c

drivers/net/phy/mdio_bus.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -61,6 +61,9 @@ int mdiobus_register(struct mii_bus *bus)
		for (i = 0; i < PHY_MAX_ADDR; i++) {
		struct phy_device *phydev;

		if (bus->phy_mask & (1 << i))
		continue;

		phydev = get_phy_device(bus, i);

		if (IS_ERR(phydev))

include/linux/phy.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -72,6 +72,9 @@ struct mii_bus {
		/* list of all PHYs on bus */
		struct phy_device *phy_map[PHY_MAX_ADDR];

		/* Phy addresses to be ignored when probing */
		u32 phy_mask;

		/* Pointer to an array of interrupts, each PHY's
		* interrupt at the index matching its address */
		int *irq;