diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.19/535-net-marvell-neta-add-comphy-support.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.19/535-net-marvell-neta-add-comphy-support.patch | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.19/535-net-marvell-neta-add-comphy-support.patch b/target/linux/mvebu/patches-4.19/535-net-marvell-neta-add-comphy-support.patch new file mode 100644 index 0000000000..257cfdec4a --- /dev/null +++ b/target/linux/mvebu/patches-4.19/535-net-marvell-neta-add-comphy-support.patch @@ -0,0 +1,159 @@ +From a10c1c8191e04c21769656c2ca8e1c69a6218954 Mon Sep 17 00:00:00 2001 +From: Russell King <rmk+kernel@armlinux.org.uk> +Date: Thu, 7 Feb 2019 16:19:26 +0000 +Subject: [PATCH] net: marvell: neta: add comphy support + +Add support for the common phy binding, so that we can reconfigure the +comphy according to the desired ethernet speed. This will allow us to +support 1000base-X and 2500base-X SFPs dynamically on SolidRun Clearfog. + +Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/marvell/mvneta.c | 45 +++++++++++++++++++++++++++++++---- + 1 file changed, 41 insertions(+), 4 deletions(-) + +--- a/drivers/net/ethernet/marvell/mvneta.c ++++ b/drivers/net/ethernet/marvell/mvneta.c +@@ -27,6 +27,7 @@ + #include <linux/of_irq.h> + #include <linux/of_mdio.h> + #include <linux/of_net.h> ++#include <linux/phy/phy.h> + #include <linux/phy.h> + #include <linux/phylink.h> + #include <linux/platform_device.h> +@@ -436,6 +437,7 @@ struct mvneta_port { + struct device_node *dn; + unsigned int tx_csum_limit; + struct phylink *phylink; ++ struct phy *comphy; + + struct mvneta_bm *bm_priv; + struct mvneta_bm_pool *pool_long; +@@ -3153,6 +3155,8 @@ static void mvneta_start_dev(struct mvne + { + int cpu; + ++ WARN_ON(phy_power_on(pp->comphy)); ++ + mvneta_max_rx_size_set(pp, pp->pkt_size); + mvneta_txq_max_tx_size_set(pp, pp->pkt_size); + +@@ -3215,6 +3219,8 @@ static void mvneta_stop_dev(struct mvnet + + mvneta_tx_reset(pp); + mvneta_rx_reset(pp); ++ ++ WARN_ON(phy_power_off(pp->comphy)); + } + + static void mvneta_percpu_enable(void *arg) +@@ -3340,6 +3346,7 @@ static int mvneta_set_mac_addr(struct ne + static void mvneta_validate(struct net_device *ndev, unsigned long *supported, + struct phylink_link_state *state) + { ++ struct mvneta_port *pp = netdev_priv(ndev); + __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; + + /* We only support QSGMII, SGMII, 802.3z and RGMII modes */ +@@ -3360,8 +3367,13 @@ static void mvneta_validate(struct net_d + phylink_set(mask, Pause); + + /* Half-duplex at speeds higher than 100Mbit is unsupported */ +- phylink_set(mask, 1000baseT_Full); +- phylink_set(mask, 1000baseX_Full); ++ if (pp->comphy || state->interface != PHY_INTERFACE_MODE_2500BASEX) { ++ phylink_set(mask, 1000baseT_Full); ++ phylink_set(mask, 1000baseX_Full); ++ } ++ if (pp->comphy || state->interface == PHY_INTERFACE_MODE_2500BASEX) { ++ phylink_set(mask, 2500baseX_Full); ++ } + + if (!phy_interface_mode_is_8023z(state->interface)) { + /* 10M and 100M are only supported in non-802.3z mode */ +@@ -3375,6 +3387,11 @@ static void mvneta_validate(struct net_d + __ETHTOOL_LINK_MODE_MASK_NBITS); + bitmap_and(state->advertising, state->advertising, mask, + __ETHTOOL_LINK_MODE_MASK_NBITS); ++ ++ /* We can only operate at 2500BaseX or 1000BaseX. If requested ++ * to advertise both, only report advertising at 2500BaseX. ++ */ ++ phylink_helper_basex_speed(state); + } + + static int mvneta_mac_link_state(struct net_device *ndev, +@@ -3386,7 +3403,9 @@ static int mvneta_mac_link_state(struct + gmac_stat = mvreg_read(pp, MVNETA_GMAC_STATUS); + + if (gmac_stat & MVNETA_GMAC_SPEED_1000) +- state->speed = SPEED_1000; ++ state->speed = ++ state->interface == PHY_INTERFACE_MODE_2500BASEX ? ++ SPEED_2500 : SPEED_1000; + else if (gmac_stat & MVNETA_GMAC_SPEED_100) + state->speed = SPEED_100; + else +@@ -3501,12 +3520,20 @@ static void mvneta_mac_config(struct net + MVNETA_GMAC_FORCE_LINK_DOWN); + } + ++ + /* When at 2.5G, the link partner can send frames with shortened + * preambles. + */ + if (state->speed == SPEED_2500) + new_ctrl4 |= MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE; + ++ if (pp->comphy && ++ (state->interface == PHY_INTERFACE_MODE_SGMII || ++ state->interface == PHY_INTERFACE_MODE_1000BASEX || ++ state->interface == PHY_INTERFACE_MODE_2500BASEX)) ++ WARN_ON(phy_set_mode_ext(pp->comphy, PHY_MODE_ETHERNET, ++ state->interface)); ++ + if (new_ctrl0 != gmac_ctrl0) + mvreg_write(pp, MVNETA_GMAC_CTRL_0, new_ctrl0); + if (new_ctrl2 != gmac_ctrl2) +@@ -4419,7 +4446,7 @@ static int mvneta_port_power_up(struct m + if (phy_mode == PHY_INTERFACE_MODE_QSGMII) + mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_QSGMII_SERDES_PROTO); + else if (phy_mode == PHY_INTERFACE_MODE_SGMII || +- phy_mode == PHY_INTERFACE_MODE_1000BASEX) ++ phy_interface_mode_is_8023z(phy_mode)) + mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO); + else if (!phy_interface_mode_is_rgmii(phy_mode)) + return -EINVAL; +@@ -4436,6 +4463,7 @@ static int mvneta_probe(struct platform_ + struct mvneta_port *pp; + struct net_device *dev; + struct phylink *phylink; ++ struct phy *comphy; + const char *dt_mac_addr; + char hw_mac_addr[ETH_ALEN]; + const char *mac_from; +@@ -4461,6 +4489,14 @@ static int mvneta_probe(struct platform_ + goto err_free_irq; + } + ++ comphy = devm_of_phy_get(&pdev->dev, dn, NULL); ++ if (comphy == ERR_PTR(-EPROBE_DEFER)) { ++ err = -EPROBE_DEFER; ++ goto err_free_irq; ++ } else if (IS_ERR(comphy)) { ++ comphy = NULL; ++ } ++ + phylink = phylink_create(dev, pdev->dev.fwnode, phy_mode, + &mvneta_phylink_ops); + if (IS_ERR(phylink)) { +@@ -4477,6 +4513,7 @@ static int mvneta_probe(struct platform_ + pp = netdev_priv(dev); + spin_lock_init(&pp->lock); + pp->phylink = phylink; ++ pp->comphy = comphy; + pp->phy_interface = phy_mode; + pp->dn = dn; + |