[PATCH 1/1] net: add micrel KSZ8873MLL switch support
From: Jean-Christophe PLAGNIOL-VILLARD <hidden>
Date: 2012-11-21 10:27:10
Also in:
linux-arm-kernel
Subsystem:
ethernet phy library, networking drivers, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
this will allow to detect the link between the switch and the soc Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <redacted> Cc: netdev@vger.kernel.org --- drivers/net/phy/micrel.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ include/linux/micrel_phy.h | 1 + 2 files changed, 45 insertions(+)
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 2165d5f..38d7034 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c@@ -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 Swithch", + .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 }, { } };
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index de20120..adfe8c0 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h@@ -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
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1.7.10.4