diff options
Diffstat (limited to 'target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch')
| -rw-r--r-- | target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch b/target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch new file mode 100644 index 0000000000..a22d272656 --- /dev/null +++ b/target/linux/generic/backport-4.14/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch @@ -0,0 +1,54 @@ +From 2355a6546a053b1c16ebefd6ce1f0cccc00e1da5 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Thu, 12 Oct 2017 10:21:25 +0200 +Subject: [PATCH] net: phy: broadcom: support new device flag for setting + master mode +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +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> +--- + drivers/net/phy/broadcom.c | 6 ++++++ + include/linux/brcmphy.h | 1 + + 2 files changed, 7 insertions(+) + +--- a/drivers/net/phy/broadcom.c ++++ b/drivers/net/phy/broadcom.c +@@ -43,6 +43,12 @@ static int bcm54210e_config_init(struct + 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; + } + +--- a/include/linux/brcmphy.h ++++ b/include/linux/brcmphy.h +@@ -64,6 +64,7 @@ + #define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000 + #define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000 + #define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000 ++#define PHY_BRCM_EN_MASTER_MODE 0x00010000 + + /* Broadcom BCM7xxx specific workarounds */ + #define PHY_BRCM_7XXX_REV(x) (((x) >> 8) & 0xff) |