OpenWrt – Rev 1
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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
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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
@@ -166,13 +166,19 @@ 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) {