diff options
Diffstat (limited to 'target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch')
| -rw-r--r-- | target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch b/target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch new file mode 100644 index 0000000000..db239e0a00 --- /dev/null +++ b/target/linux/generic/backport-4.14/071-v4.15-0001-net-bgmac-enable-master-mode-for-BCM54210E-and-B5021.patch @@ -0,0 +1,50 @@ +From 12acd136913ccdf394eeb2bc8686ff5505368119 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 10:21:26 +0200 +Subject: [PATCH] net: bgmac: enable master mode for BCM54210E and B50212E PHYs +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +There are 4 very similar PHYs: +0x600d84a1: BCM54210E (rev B0) +0x600d84a2: BCM54210E (rev B1) +0x600d84a5: B50212E (rev B0) +0x600d84a6: B50212E (rev B1) +that need setting master mode manually. It's because they run in slave +mode by default with Automatic Slave/Master configuration disabled which +can lead to unreliable connection with massive ping loss. + +So far it was reported for a board with BCM47189 SoC and B50212E B1 PHY +connected to the bgmac supported ethernet device. Telling PHY driver to +setup PHY properly solves this issue. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/broadcom/bgmac-bcma.c | 8 +++++++- + 1 file changed, 7 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c ++++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c +@@ -184,13 +184,19 @@ static int bgmac_probe(struct bcma_devic + + if (!bgmac_is_bcm4707_family(core) && + !(ci->id == BCMA_CHIP_ID_BCM53573 && core->core_unit == 1)) { ++ struct phy_device *phydev; ++ + mii_bus = bcma_mdio_mii_register(bgmac); + if (IS_ERR(mii_bus)) { + err = PTR_ERR(mii_bus); + goto err; + } +- + bgmac->mii_bus = mii_bus; ++ ++ phydev = mdiobus_get_phy(bgmac->mii_bus, bgmac->phyaddr); ++ if (ci->id == BCMA_CHIP_ID_BCM53573 && phydev && ++ (phydev->drv->phy_id & phydev->drv->phy_id_mask) == PHY_ID_BCM54210E) ++ phydev->dev_flags |= PHY_BRCM_EN_MASTER_MODE; + } + + if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) { |