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authorRafał Miłecki <rafal@milecki.pl>2017-10-12 11:21:25 +0300
committerDavid S. Miller <davem@davemloft.net>2017-10-13 08:59:38 +0300
commit2355a6546a053b1c16ebefd6ce1f0cccc00e1da5 (patch)
tree3d041989b24f4ab300c3ac24ad4b04d06e2e5447 /drivers/net/phy/broadcom.c
parent32c10bbfe914c76d8802be33c97b59be9582df1b (diff)
downloadlinux-2355a6546a053b1c16ebefd6ce1f0cccc00e1da5.tar.xz
net: phy: broadcom: support new device flag for setting master mode
Some of Broadcom's PHYs run by default in slave mode with Automatic Slave/Master configuration disabled. It stops them from working properly with some devices. So far it has been verified for BCM54210E and BCM50212E which don't work well with Intel's I217-LM and I218-LM: http://ark.intel.com/products/60019/Intel-Ethernet-Connection-I217-LM http://ark.intel.com/products/71307/Intel-Ethernet-Connection-I218-LM I was told there is massive ping loss. This commit adds support for a new flag which can be set by an ethernet driver to fixup PHY setup. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/broadcom.c')
-rw-r--r--drivers/net/phy/broadcom.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 1e9ad30a35c8..d7ed69deabfb 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -43,6 +43,12 @@ static int bcm54210e_config_init(struct phy_device *phydev)
val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
+ if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) {
+ val = phy_read(phydev, MII_CTRL1000);
+ val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER;
+ phy_write(phydev, MII_CTRL1000, val);
+ }
+
return 0;
}