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author | Rafał Miłecki <rafal@milecki.pl> | 2017-10-13 10:22:41 +0200 |
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committer | Rafał Miłecki <rafal@milecki.pl> | 2017-10-13 13:54:22 +0200 |
commit | 2cd32a3304cd52411da2dfac6db429efcad74ac8 (patch) | |
tree | aa47d9c3ee421f14df8b9fd7a27e0a852110058c /target/linux/generic/backport-4.9/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch | |
parent | 878456caf60dc5016a63e2ebd3dfe6b233f67b81 (diff) | |
download | mtk-20170518-2cd32a3304cd52411da2dfac6db429efcad74ac8.zip mtk-20170518-2cd32a3304cd52411da2dfac6db429efcad74ac8.tar.gz mtk-20170518-2cd32a3304cd52411da2dfac6db429efcad74ac8.tar.bz2 |
kernel: add fix for bgmac with B50212E B1 PHY
This PHY requires some extra programming to work reliably with all
devices. Backport upstream fix for it.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Diffstat (limited to 'target/linux/generic/backport-4.9/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch')
-rw-r--r-- | target/linux/generic/backport-4.9/076-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-4.9/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch b/target/linux/generic/backport-4.9/076-v4.15-0001-net-phy-broadcom-support-new-device-flag-for-setting.patch new file mode 100644 index 0000000..334c444 --- /dev/null +++ b/target/linux/generic/backport-4.9/076-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 +@@ -59,6 +59,7 @@ + #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) |