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Commit 93272e07 authored by Jean-Christophe PLAGNIOL-VILLARD's avatar Jean-Christophe PLAGNIOL-VILLARD Committed by David S. Miller
Browse files

net: add micrel KSZ8873MLL switch support 



this will allow to detect the link between the switch and the soc

Signed-off-by: default avatarJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: netdev@vger.kernel.org
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0b545a62

drivers/net/phy/micrel.c

+44 −0
Original line number Diff line number Diff line
@@ -127,6 +127,39 @@ static int ks8051_config_init(struct phy_device *phydev) 
	return 0;

}



#define KSZ8873MLL_GLOBAL_CONTROL_4	0x06

#define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX	(1 << 6)

#define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED	(1 << 4)

int ksz8873mll_read_status(struct phy_device *phydev)

{

	int regval;



	/* dummy read */

	regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);



	regval = phy_read(phydev, KSZ8873MLL_GLOBAL_CONTROL_4);



	if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX)

		phydev->duplex = DUPLEX_HALF;

	else

		phydev->duplex = DUPLEX_FULL;



	if (regval & KSZ8873MLL_GLOBAL_CONTROL_4_SPEED)

		phydev->speed = SPEED_10;

	else

		phydev->speed = SPEED_100;



	phydev->link = 1;

	phydev->pause = phydev->asym_pause = 0;



	return 0;

}



static int ksz8873mll_config_aneg(struct phy_device *phydev)

{

	return 0;

}



static struct phy_driver ksphy_driver[] = {

{

	.phy_id		= PHY_ID_KS8737,
@@ -204,6 +237,16 @@ static struct phy_driver ksphy_driver[] = { 
	.ack_interrupt	= kszphy_ack_interrupt,

	.config_intr	= ksz9021_config_intr,

	.driver		= { .owner = THIS_MODULE, },

}, {

	.phy_id		= PHY_ID_KSZ8873MLL,

	.phy_id_mask	= 0x00fffff0,

	.name		= "Micrel KSZ8873MLL Switch",

	.features	= (SUPPORTED_Pause | SUPPORTED_Asym_Pause),

	.flags		= PHY_HAS_MAGICANEG,

	.config_init	= kszphy_config_init,

	.config_aneg	= ksz8873mll_config_aneg,

	.read_status	= ksz8873mll_read_status,

	.driver		= { .owner = THIS_MODULE, },

} };



static int __init ksphy_init(void)
@@ -232,6 +275,7 @@ static struct mdio_device_id __maybe_unused micrel_tbl[] = { 
	{ PHY_ID_KSZ8021, 0x00ffffff },

	{ PHY_ID_KSZ8041, 0x00fffff0 },

	{ PHY_ID_KSZ8051, 0x00fffff0 },

	{ PHY_ID_KSZ8873MLL, 0x00fffff0 },

	{ }

};

include/linux/micrel_phy.h

+1 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 


#define MICREL_PHY_ID_MASK	0x00fffff0



#define PHY_ID_KSZ8873MLL	0x000e7237

#define PHY_ID_KSZ9021		0x00221610

#define PHY_ID_KS8737		0x00221720

#define PHY_ID_KSZ8021		0x00221555