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From 121287dee1454be0ebc0e5b8c7b5b85e16570551 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Fri, 22 Apr 2016 11:05:23 +0200
Subject: [PATCH 80/90] net-next: mediatek: fix gigabit and flow control
advertisement
The current code will not setup the PHYs advertisement features correctly.
Fix this and properly advertise Gigabit features and properly handle
asymmetric pause frames.
Signed-off-by: John Crispin <blogic@openwrt.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 9928a79..204d927 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -133,6 +133,8 @@ static int mtk_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg)
static void mtk_phy_link_adjust(struct net_device *dev)
{
struct mtk_mac *mac = netdev_priv(dev);
+ u16 lcl_adv, rmt_adv = 0;
+ u8 flowctrl;
u32 mcr = MAC_MCR_MAX_RX_1536 | MAC_MCR_IPG_CFG |
MAC_MCR_FORCE_MODE | MAC_MCR_TX_EN |
MAC_MCR_RX_EN | MAC_MCR_BACKOFF_EN |
@@ -154,7 +156,16 @@ static void mtk_phy_link_adjust(struct net_device *dev)
mcr |= MAC_MCR_FORCE_DPX;
if (mac->phy_dev->pause)
- mcr |= MAC_MCR_FORCE_RX_FC | MAC_MCR_FORCE_TX_FC;
+ rmt_adv = LPA_PAUSE_CAP;
+ if (mac->phy_dev->asym_pause)
+ rmt_adv |= LPA_PAUSE_ASYM;
+
+ lcl_adv = mii_advertise_flowctrl(FLOW_CTRL_RX | FLOW_CTRL_TX);
+ flowctrl = mii_resolve_flowctrl_fdx(lcl_adv, rmt_adv);
+ if (flowctrl & FLOW_CTRL_TX)
+ mcr |= MAC_MCR_FORCE_TX_FC;
+ if (flowctrl & FLOW_CTRL_RX)
+ mcr |= MAC_MCR_FORCE_RX_FC;
mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id));
@@ -236,7 +247,8 @@ static int mtk_phy_connect(struct mtk_mac *mac)
mac->phy_dev->autoneg = AUTONEG_ENABLE;
mac->phy_dev->speed = 0;
mac->phy_dev->duplex = 0;
- mac->phy_dev->supported &= PHY_BASIC_FEATURES;
+ mac->phy_dev->supported &= PHY_GBIT_FEATURES | SUPPORTED_Pause |
+ ~SUPPORTED_Asym_Pause;
mac->phy_dev->advertising = mac->phy_dev->supported |
ADVERTISED_Autoneg;
phy_start_aneg(mac->phy_dev);
--
1.7.10.4
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