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Miller" , Matthias Brugger Subject: [PATCH net-next v4 1/3] net: ethernet: mediatek: Add basic PHYLINK support Date: Sun, 25 Aug 2019 19:43:39 +0200 Message-Id: <20190825174341.20750-2-opensource@vdorst.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190825174341.20750-1-opensource@vdorst.com> References: <20190825174341.20750-1-opensource@vdorst.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190825_104358_570778_AC16D4DC X-CRM114-Status: GOOD ( 22.32 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frank Wunderlich , netdev@vger.kernel.org, linux-mips@vger.kernel.org, Russell King , =?utf-8?q?Ren=C3=A9_van_Dorst?= , linux-mediatek@lists.infradead.org, Stefan Roese , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org This convert the basics to PHYLINK API. SGMII support is not in this patch. Signed-off-by: René van Dorst --- v3->v4: * In link_down() a ~ was missing before the (, RX and TX bits have to be cleared. Spotted by Russell King v2->v3: * Make link_down() similar as link_up() suggested by Russell King v1->v2: * Also report 1000Base-X support suggested by Russell King * Reverse christmas on many places suggested by David Miller * Rebase too pickup the mt76x8 changes. --- drivers/net/ethernet/mediatek/Kconfig | 2 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 424 +++++++++++--------- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 31 +- 3 files changed, 265 insertions(+), 192 deletions(-) diff --git a/drivers/net/ethernet/mediatek/Kconfig b/drivers/net/ethernet/mediatek/Kconfig index b76cf2e1c9dc..4968352ba188 100644 --- a/drivers/net/ethernet/mediatek/Kconfig +++ b/drivers/net/ethernet/mediatek/Kconfig @@ -9,7 +9,7 @@ if NET_VENDOR_MEDIATEK config NET_MEDIATEK_SOC tristate "MediaTek SoC Gigabit Ethernet support" - select PHYLIB + select PHYLINK ---help--- This driver supports the gigabit ethernet MACs in the MediaTek SoC family. diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 8ddbb8dcf032..7d2566dd4ce0 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "mtk_eth_soc.h" @@ -186,168 +187,224 @@ static void mtk_gmac0_rgmii_adjust(struct mtk_eth *eth, int speed) mtk_w32(eth, val, TRGMII_TCK_CTRL); } -static void mtk_phy_link_adjust(struct net_device *dev) +static void mtk_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) { - struct mtk_mac *mac = netdev_priv(dev); - u16 lcl_adv = 0, 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 | - MAC_MCR_BACKPR_EN; + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + struct mtk_eth *eth = mac->hw; + u32 mcr_cur, mcr_new; + int val, ge_mode = 0; + + /* MT76x8 has no hardware settings between for the MAC */ + if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) && + mac->interface != state->interface) { + /* Setup soc pin functions */ + switch (state->interface) { + case PHY_INTERFACE_MODE_TRGMII: + if (mac->id) + goto err_phy; + if (!MTK_HAS_CAPS(mac->hw->soc->caps, + MTK_GMAC1_TRGMII)) + goto err_phy; + /* fall through */ + case PHY_INTERFACE_MODE_GMII: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII: + break; + case PHY_INTERFACE_MODE_MII: + ge_mode = 1; + break; + case PHY_INTERFACE_MODE_REVMII: + ge_mode = 2; + break; + case PHY_INTERFACE_MODE_RMII: + if (mac->id) + goto err_phy; + ge_mode = 3; + break; + default: + goto err_phy; + } - if (unlikely(test_bit(MTK_RESETTING, &mac->hw->state))) - return; + /* Setup clock for 1st gmac */ + if (!mac->id && + MTK_HAS_CAPS(mac->hw->soc->caps, MTK_GMAC1_TRGMII)) { + if (MTK_HAS_CAPS(mac->hw->soc->caps, + MTK_TRGMII_MT7621_CLK)) { + if (mt7621_gmac0_rgmii_adjust(mac->hw, + state->interface)) + goto err_phy; + } else { + if (state->interface != + PHY_INTERFACE_MODE_TRGMII) + mtk_gmac0_rgmii_adjust(mac->hw, + state->speed); + } + } - switch (dev->phydev->speed) { + /* put the gmac into the right mode */ + regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); + val &= ~SYSCFG0_GE_MODE(SYSCFG0_GE_MASK, mac->id); + val |= SYSCFG0_GE_MODE(ge_mode, mac->id); + regmap_write(eth->ethsys, ETHSYS_SYSCFG0, val); + + mac->interface = state->interface; + } + + /* Setup gmac */ + mcr_cur = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); + mcr_new = mcr_cur; + mcr_new &= ~(MAC_MCR_SPEED_100 | MAC_MCR_SPEED_1000 | + MAC_MCR_FORCE_DPX | MAC_MCR_FORCE_TX_FC | + MAC_MCR_FORCE_RX_FC); + mcr_new |= MAC_MCR_MAX_RX_1536 | MAC_MCR_IPG_CFG | MAC_MCR_FORCE_MODE | + MAC_MCR_BACKOFF_EN | MAC_MCR_BACKPR_EN | MAC_MCR_FORCE_LINK; + + switch (state->speed) { case SPEED_1000: - mcr |= MAC_MCR_SPEED_1000; + mcr_new |= MAC_MCR_SPEED_1000; break; case SPEED_100: - mcr |= MAC_MCR_SPEED_100; + mcr_new |= MAC_MCR_SPEED_100; break; } - - if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_GMAC1_TRGMII) && !mac->id) { - if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_TRGMII_MT7621_CLK)) { - if (mt7621_gmac0_rgmii_adjust(mac->hw, - dev->phydev->interface)) - return; - } else { - if (!mac->trgmii) - mtk_gmac0_rgmii_adjust(mac->hw, - dev->phydev->speed); - } + if (state->duplex == DUPLEX_FULL) { + mcr_new |= MAC_MCR_FORCE_DPX; + if (state->pause & MLO_PAUSE_TX) + mcr_new |= MAC_MCR_FORCE_TX_FC; + if (state->pause & MLO_PAUSE_RX) + mcr_new |= MAC_MCR_FORCE_RX_FC; } - if (dev->phydev->link) - mcr |= MAC_MCR_FORCE_LINK; + /* Only update control register when needed! */ + if (mcr_new != mcr_cur) + mtk_w32(mac->hw, mcr_new, MTK_MAC_MCR(mac->id)); - if (dev->phydev->duplex) { - mcr |= MAC_MCR_FORCE_DPX; + return; - if (dev->phydev->pause) - rmt_adv = LPA_PAUSE_CAP; - if (dev->phydev->asym_pause) - rmt_adv |= LPA_PAUSE_ASYM; +err_phy: + dev_err(eth->dev, "%s: GMAC%d mode %s not supported!\n", __func__, + mac->id, phy_modes(state->interface)); +} - lcl_adv = linkmode_adv_to_lcl_adv_t(dev->phydev->advertising); - flowctrl = mii_resolve_flowctrl_fdx(lcl_adv, rmt_adv); +static int mtk_mac_link_state(struct phylink_config *config, + struct phylink_link_state *state) +{ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + u32 pmsr = mtk_r32(mac->hw, MTK_MAC_MSR(mac->id)); - if (flowctrl & FLOW_CTRL_TX) - mcr |= MAC_MCR_FORCE_TX_FC; - if (flowctrl & FLOW_CTRL_RX) - mcr |= MAC_MCR_FORCE_RX_FC; + state->link = (pmsr & MAC_MSR_LINK); + state->duplex = (pmsr & MAC_MSR_DPX) >> 1; - netif_dbg(mac->hw, link, dev, "rx pause %s, tx pause %s\n", - flowctrl & FLOW_CTRL_RX ? "enabled" : "disabled", - flowctrl & FLOW_CTRL_TX ? "enabled" : "disabled"); + switch (pmsr & (MAC_MSR_SPEED_1000 | MAC_MSR_SPEED_100)) { + case 0: + state->speed = SPEED_10; + break; + case MAC_MSR_SPEED_100: + state->speed = SPEED_100; + break; + case MAC_MSR_SPEED_1000: + state->speed = SPEED_1000; + break; + default: + state->speed = SPEED_UNKNOWN; + break; } - mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id)); + state->pause &= (MLO_PAUSE_RX | MLO_PAUSE_TX); + if (pmsr & MAC_MSR_RX_FC) + state->pause |= MLO_PAUSE_RX; + if (pmsr & MAC_MSR_TX_FC) + state->pause |= MLO_PAUSE_TX; - if (!of_phy_is_fixed_link(mac->of_node)) - phy_print_status(dev->phydev); + return 1; } -static int mtk_phy_connect_node(struct mtk_eth *eth, struct mtk_mac *mac, - struct device_node *phy_node) +static void mtk_mac_an_restart(struct phylink_config *config) { - struct phy_device *phydev; - int phy_mode; - - phy_mode = of_get_phy_mode(phy_node); - if (phy_mode < 0) { - dev_err(eth->dev, "incorrect phy-mode %d\n", phy_mode); - return -EINVAL; - } - - phydev = of_phy_connect(eth->netdev[mac->id], phy_node, - mtk_phy_link_adjust, 0, phy_mode); - if (!phydev) { - dev_err(eth->dev, "could not connect to PHY\n"); - return -ENODEV; - } + /* Do nothing */ +} - dev_info(eth->dev, - "connected mac %d to PHY at %s [uid=%08x, driver=%s]\n", - mac->id, phydev_name(phydev), phydev->phy_id, - phydev->drv->name); +static void mtk_mac_link_down(struct phylink_config *config, unsigned int mode, + phy_interface_t interface) +{ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + u32 mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); - return 0; + mcr &= ~(MAC_MCR_TX_EN | MAC_MCR_RX_EN); + mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id)); } -static int mtk_phy_connect(struct net_device *dev) +static void mtk_mac_link_up(struct phylink_config *config, unsigned int mode, + phy_interface_t interface, + struct phy_device *phy) { - struct mtk_mac *mac = netdev_priv(dev); - struct mtk_eth *eth; - struct device_node *np; - u32 val; - int err; + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + u32 mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); - eth = mac->hw; - np = of_parse_phandle(mac->of_node, "phy-handle", 0); - if (!np && of_phy_is_fixed_link(mac->of_node)) - if (!of_phy_register_fixed_link(mac->of_node)) - np = of_node_get(mac->of_node); - if (!np) - return -ENODEV; + mcr |= MAC_MCR_TX_EN | MAC_MCR_RX_EN; + mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id)); +} - err = mtk_setup_hw_path(eth, mac->id, of_get_phy_mode(np)); - if (err) - goto err_phy; - - mac->ge_mode = 0; - switch (of_get_phy_mode(np)) { - case PHY_INTERFACE_MODE_TRGMII: - mac->trgmii = true; - case PHY_INTERFACE_MODE_RGMII_TXID: - case PHY_INTERFACE_MODE_RGMII_RXID: - case PHY_INTERFACE_MODE_RGMII_ID: - case PHY_INTERFACE_MODE_RGMII: - case PHY_INTERFACE_MODE_SGMII: - break; - case PHY_INTERFACE_MODE_MII: - case PHY_INTERFACE_MODE_GMII: - mac->ge_mode = 1; - break; - case PHY_INTERFACE_MODE_REVMII: - mac->ge_mode = 2; - break; - case PHY_INTERFACE_MODE_RMII: - if (!mac->id) - goto err_phy; - mac->ge_mode = 3; - break; - default: - goto err_phy; - } +static void mtk_validate(struct phylink_config *config, + unsigned long *supported, + struct phylink_link_state *state) +{ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; - /* No MT7628/88 support for now */ - if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) { - /* put the gmac into the right mode */ - regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); - val &= ~SYSCFG0_GE_MODE(SYSCFG0_GE_MASK, mac->id); - val |= SYSCFG0_GE_MODE(mac->ge_mode, mac->id); - regmap_write(eth->ethsys, ETHSYS_SYSCFG0, val); + if (state->interface != PHY_INTERFACE_MODE_NA && + state->interface != PHY_INTERFACE_MODE_MII && + state->interface != PHY_INTERFACE_MODE_GMII && + !(MTK_HAS_CAPS(mac->hw->soc->caps, MTK_RGMII) && + phy_interface_mode_is_rgmii(state->interface)) && + !(MTK_HAS_CAPS(mac->hw->soc->caps, MTK_TRGMII) && + !mac->id && state->interface == PHY_INTERFACE_MODE_TRGMII)) { + linkmode_zero(supported); + return; } - /* couple phydev to net_device */ - if (mtk_phy_connect_node(eth, mac, np)) - goto err_phy; + phylink_set_port_modes(mask); + phylink_set(mask, Autoneg); - of_node_put(np); + if (state->interface == PHY_INTERFACE_MODE_TRGMII) { + phylink_set(mask, 1000baseT_Full); + } else { + phylink_set(mask, 10baseT_Half); + phylink_set(mask, 10baseT_Full); + phylink_set(mask, 100baseT_Half); + phylink_set(mask, 100baseT_Full); + + if (state->interface != PHY_INTERFACE_MODE_MII) { + phylink_set(mask, 1000baseT_Half); + phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseX_Full); + } + } - return 0; + phylink_set(mask, Pause); + phylink_set(mask, Asym_Pause); -err_phy: - if (of_phy_is_fixed_link(mac->of_node)) - of_phy_deregister_fixed_link(mac->of_node); - of_node_put(np); - dev_err(eth->dev, "%s: invalid phy\n", __func__); - return -EINVAL; + linkmode_and(supported, supported, mask); + linkmode_and(state->advertising, state->advertising, mask); } +static const struct phylink_mac_ops mtk_phylink_ops = { + .validate = mtk_validate, + .mac_link_state = mtk_mac_link_state, + .mac_an_restart = mtk_mac_an_restart, + .mac_config = mtk_mac_config, + .mac_link_down = mtk_mac_link_down, + .mac_link_up = mtk_mac_link_up, +}; + static int mtk_mdio_init(struct mtk_eth *eth) { struct device_node *mii_np; @@ -2013,6 +2070,14 @@ static int mtk_open(struct net_device *dev) { struct mtk_mac *mac = netdev_priv(dev); struct mtk_eth *eth = mac->hw; + int err; + + err = phylink_of_phy_connect(mac->phylink, mac->of_node, 0); + if (err) { + netdev_err(dev, "%s: could not attach PHY: %d\n", __func__, + err); + return err; + } /* we run 2 netdevs on the same dma ring so we only bring it up once */ if (!refcount_read(ð->dma_refcnt)) { @@ -2030,7 +2095,7 @@ static int mtk_open(struct net_device *dev) else refcount_inc(ð->dma_refcnt); - phy_start(dev->phydev); + phylink_start(mac->phylink); netif_start_queue(dev); return 0; } @@ -2063,8 +2128,11 @@ static int mtk_stop(struct net_device *dev) struct mtk_mac *mac = netdev_priv(dev); struct mtk_eth *eth = mac->hw; + phylink_stop(mac->phylink); + netif_tx_disable(dev); - phy_stop(dev->phydev); + + phylink_disconnect_phy(mac->phylink); /* only shutdown DMA if this is the last user */ if (!refcount_dec_and_test(ð->dma_refcnt)) @@ -2159,15 +2227,6 @@ static int mtk_hw_init(struct mtk_eth *eth) ethsys_reset(eth, RSTCTRL_FE); ethsys_reset(eth, RSTCTRL_PPE); - regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); - for (i = 0; i < MTK_MAC_COUNT; i++) { - if (!eth->mac[i]) - continue; - val &= ~SYSCFG0_GE_MODE(SYSCFG0_GE_MASK, eth->mac[i]->id); - val |= SYSCFG0_GE_MODE(eth->mac[i]->ge_mode, eth->mac[i]->id); - } - regmap_write(eth->ethsys, ETHSYS_SYSCFG0, val); - if (eth->pctl) { /* Set GE2 driving and slew rate */ regmap_write(eth->pctl, GPIO_DRV_SEL10, 0xa00); @@ -2180,11 +2239,11 @@ static int mtk_hw_init(struct mtk_eth *eth) } /* Set linkdown as the default for each GMAC. Its own MCR would be set - * up with the more appropriate value when mtk_phy_link_adjust call is - * being invoked. + * up with the more appropriate value when mtk_mac_config call is being + * invoked. */ for (i = 0; i < MTK_MAC_COUNT; i++) - mtk_w32(eth, 0, MTK_MAC_MCR(i)); + mtk_w32(eth, MAC_MCR_FORCE_LINK_DOWN, MTK_MAC_MCR(i)); /* Indicates CDM to parse the MTK special tag from CPU * which also is working out for untag packets. @@ -2212,7 +2271,7 @@ static int mtk_hw_init(struct mtk_eth *eth) mtk_w32(eth, MTK_RX_DONE_INT, MTK_QDMA_INT_GRP2); mtk_w32(eth, 0x21021000, MTK_FE_INT_GRP); - for (i = 0; i < 2; i++) { + for (i = 0; i < MTK_MAC_COUNT; i++) { u32 val = mtk_r32(eth, MTK_GDMA_FWD_CFG(i)); /* setup the forward port to send frame to PDMA */ @@ -2264,7 +2323,7 @@ static int __init mtk_init(struct net_device *dev) dev->dev_addr); } - return mtk_phy_connect(dev); + return 0; } static void mtk_uninit(struct net_device *dev) @@ -2272,20 +2331,20 @@ static void mtk_uninit(struct net_device *dev) struct mtk_mac *mac = netdev_priv(dev); struct mtk_eth *eth = mac->hw; - phy_disconnect(dev->phydev); - if (of_phy_is_fixed_link(mac->of_node)) - of_phy_deregister_fixed_link(mac->of_node); + phylink_disconnect_phy(mac->phylink); mtk_tx_irq_disable(eth, ~0); mtk_rx_irq_disable(eth, ~0); } static int mtk_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { + struct mtk_mac *mac = netdev_priv(dev); + switch (cmd) { case SIOCGMIIPHY: case SIOCGMIIREG: case SIOCSMIIREG: - return phy_mii_ioctl(dev->phydev, ifr, cmd); + return phylink_mii_ioctl(mac->phylink, ifr, cmd); default: break; } @@ -2326,16 +2385,6 @@ static void mtk_pending_work(struct work_struct *work) eth->dev->pins->default_state); mtk_hw_init(eth); - for (i = 0; i < MTK_MAC_COUNT; i++) { - if (!eth->mac[i] || - of_phy_is_fixed_link(eth->mac[i]->of_node)) - continue; - err = phy_init_hw(eth->netdev[i]->phydev); - if (err) - dev_err(eth->dev, "%s: PHY init failed.\n", - eth->netdev[i]->name); - } - /* restart DMA and enable IRQs */ for (i = 0; i < MTK_MAC_COUNT; i++) { if (!test_bit(i, &restart)) @@ -2398,9 +2447,7 @@ static int mtk_get_link_ksettings(struct net_device *ndev, if (unlikely(test_bit(MTK_RESETTING, &mac->hw->state))) return -EBUSY; - phy_ethtool_ksettings_get(ndev->phydev, cmd); - - return 0; + return phylink_ethtool_ksettings_get(mac->phylink, cmd); } static int mtk_set_link_ksettings(struct net_device *ndev, @@ -2411,7 +2458,7 @@ static int mtk_set_link_ksettings(struct net_device *ndev, if (unlikely(test_bit(MTK_RESETTING, &mac->hw->state))) return -EBUSY; - return phy_ethtool_ksettings_set(ndev->phydev, cmd); + return phylink_ethtool_ksettings_set(mac->phylink, cmd); } static void mtk_get_drvinfo(struct net_device *dev, @@ -2445,22 +2492,10 @@ static int mtk_nway_reset(struct net_device *dev) if (unlikely(test_bit(MTK_RESETTING, &mac->hw->state))) return -EBUSY; - return genphy_restart_aneg(dev->phydev); -} + if (!mac->phylink) + return -ENOTSUPP; -static u32 mtk_get_link(struct net_device *dev) -{ - struct mtk_mac *mac = netdev_priv(dev); - int err; - - if (unlikely(test_bit(MTK_RESETTING, &mac->hw->state))) - return -EBUSY; - - err = genphy_update_link(dev->phydev); - if (err) - return ethtool_op_get_link(dev); - - return dev->phydev->link; + return phylink_ethtool_nway_reset(mac->phylink); } static void mtk_get_strings(struct net_device *dev, u32 stringset, u8 *data) @@ -2580,7 +2615,7 @@ static const struct ethtool_ops mtk_ethtool_ops = { .get_msglevel = mtk_get_msglevel, .set_msglevel = mtk_set_msglevel, .nway_reset = mtk_nway_reset, - .get_link = mtk_get_link, + .get_link = ethtool_op_get_link, .get_strings = mtk_get_strings, .get_sset_count = mtk_get_sset_count, .get_ethtool_stats = mtk_get_ethtool_stats, @@ -2608,9 +2643,10 @@ static const struct net_device_ops mtk_netdev_ops = { static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) { - struct mtk_mac *mac; const __be32 *_id = of_get_property(np, "reg", NULL); - int id, err; + struct phylink *phylink; + int phy_mode, id, err; + struct mtk_mac *mac; if (!_id) { dev_err(eth->dev, "missing mac id\n"); @@ -2654,6 +2690,32 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) u64_stats_init(&mac->hw_stats->syncp); mac->hw_stats->reg_offset = id * MTK_STAT_OFFSET; + /* phylink create */ + phy_mode = of_get_phy_mode(np); + if (phy_mode < 0) { + dev_err(eth->dev, "incorrect phy-mode\n"); + err = -EINVAL; + goto free_netdev; + } + + /* mac config is not set */ + mac->interface = PHY_INTERFACE_MODE_NA; + mac->mode = MLO_AN_PHY; + mac->speed = SPEED_UNKNOWN; + + mac->phylink_config.dev = ð->netdev[id]->dev; + mac->phylink_config.type = PHYLINK_NETDEV; + + phylink = phylink_create(&mac->phylink_config, + of_fwnode_handle(mac->of_node), + phy_mode, &mtk_phylink_ops); + if (IS_ERR(phylink)) { + err = PTR_ERR(phylink); + goto free_netdev; + } + + mac->phylink = phylink; + SET_NETDEV_DEV(eth->netdev[id], eth->dev); eth->netdev[id]->watchdog_timeo = 5 * HZ; eth->netdev[id]->netdev_ops = &mtk_netdev_ops; @@ -2682,8 +2744,7 @@ static int mtk_probe(struct platform_device *pdev) { struct device_node *mac_np; struct mtk_eth *eth; - int err; - int i; + int err, i; eth = devm_kzalloc(&pdev->dev, sizeof(*eth), GFP_KERNEL); if (!eth) @@ -2869,6 +2930,7 @@ static int mtk_probe(struct platform_device *pdev) static int mtk_remove(struct platform_device *pdev) { struct mtk_eth *eth = platform_get_drvdata(pdev); + struct mtk_mac *mac; int i; /* stop all devices to make sure that dma is properly shut down */ @@ -2876,6 +2938,8 @@ static int mtk_remove(struct platform_device *pdev) if (!eth->netdev[i]) continue; mtk_stop(eth->netdev[i]); + mac = netdev_priv(eth->netdev[i]); + phylink_disconnect_phy(mac->phylink); } mtk_hw_deinit(eth); diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index cc1466ae0926..7f5f541daad7 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -14,6 +14,7 @@ #include #include #include +#include #define MTK_QDMA_PAGE_SIZE 2048 #define MTK_MAX_RX_LENGTH 1536 @@ -330,12 +331,19 @@ #define MAC_MCR_SPEED_100 BIT(2) #define MAC_MCR_FORCE_DPX BIT(1) #define MAC_MCR_FORCE_LINK BIT(0) -#define MAC_MCR_FIXED_LINK (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 | \ - MAC_MCR_BACKPR_EN | MAC_MCR_FORCE_RX_FC | \ - MAC_MCR_FORCE_TX_FC | MAC_MCR_SPEED_1000 | \ - MAC_MCR_FORCE_DPX | MAC_MCR_FORCE_LINK) +#define MAC_MCR_FORCE_LINK_DOWN (MAC_MCR_FORCE_MODE) + +/* Mac status registers */ +#define MTK_MAC_MSR(x) (0x10108 + (x * 0x100)) +#define MAC_MSR_EEE1G BIT(7) +#define MAC_MSR_EEE100M BIT(6) +#define MAC_MSR_RX_FC BIT(5) +#define MAC_MSR_TX_FC BIT(4) +#define MAC_MSR_SPEED_1000 BIT(3) +#define MAC_MSR_SPEED_100 BIT(2) +#define MAC_MSR_SPEED_MASK (MAC_MSR_SPEED_1000 | MAC_MSR_SPEED_100) +#define MAC_MSR_DPX BIT(1) +#define MAC_MSR_LINK BIT(0) /* TRGMII RXC control register */ #define TRGMII_RCK_CTRL 0x10300 @@ -858,22 +866,23 @@ struct mtk_eth { /* struct mtk_mac - the structure that holds the info about the MACs of the * SoC * @id: The number of the MAC - * @ge_mode: Interface mode kept for setup restoring + * @interface: Interface mode kept for detecting change in hw settings * @of_node: Our devicetree node * @hw: Backpointer to our main datastruture * @hw_stats: Packet statistics counter - * @trgmii Indicate if the MAC uses TRGMII connected to internal - switch */ struct mtk_mac { int id; - int ge_mode; + phy_interface_t interface; + unsigned int mode; + int speed; struct device_node *of_node; + struct phylink *phylink; + struct phylink_config phylink_config; struct mtk_eth *hw; struct mtk_hw_stats *hw_stats; __be32 hwlro_ip[MTK_MAX_LRO_IP_CNT]; int hwlro_ip_cnt; - bool trgmii; }; /* the struct describing the SoC. these are declared in the soc_xyz.c files */ From patchwork Sun Aug 25 17:43:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ren=C3=A9_van_Dorst?= X-Patchwork-Id: 11113589 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B34151399 for ; Sun, 25 Aug 2019 17:45:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8C76B206DD for ; 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Miller" , Matthias Brugger Subject: [PATCH net-next v4 2/3] net: ethernet: mediatek: Re-add support SGMII Date: Sun, 25 Aug 2019 19:43:40 +0200 Message-Id: <20190825174341.20750-3-opensource@vdorst.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190825174341.20750-1-opensource@vdorst.com> References: <20190825174341.20750-1-opensource@vdorst.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190825_104358_436797_0A935F51 X-CRM114-Status: GOOD ( 20.08 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frank Wunderlich , netdev@vger.kernel.org, linux-mips@vger.kernel.org, Russell King , =?utf-8?q?Ren=C3=A9_van_Dorst?= , linux-mediatek@lists.infradead.org, Stefan Roese , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org * Re-add SGMII support but now with PHYLINK API support So the SGMII changes are more clear * Move SGMII block setup from mtk_gmac_sgmii_path_setup() to mtk_mac_config() * Merge mtk_setup_hw_path() into mtk_mac_config() * Remove mediatek,physpeed property, fixed-link supports now any speed so speed = <2500>; is now valid with PHYLINK * Demagic SGMII register values * Use phylink state to setup fixed-link mode Signed-off-by: René van Dorst --- v3->v4: * Refactor validate() to incorporate the following items. * Also report 1000baseX_Full for SGMII and GMII modes. Suggested by Russell King * Report both 1000BaseX and 2500BaseX modes in both BaseX mode. As Russsell King explains here: https://lore.kernel.org/netdev/20190824091106.GC13294@shell.armlinux.org.uk/ v2->v3: * Redo validate(), it was totally wrong. Noticed by Russell King. v1->v2: * SGMII port only support SGMII at 1Gbit, 1000BASE-X and 2500BASE-X. Also SGMII mode only does auto-negotiation. * Change validate() to support mt76x8 changes. --- drivers/net/ethernet/mediatek/mtk_eth_path.c | 75 +-------- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 151 ++++++++++++++++--- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 37 ++++- drivers/net/ethernet/mediatek/mtk_sgmii.c | 65 +++++--- 4 files changed, 213 insertions(+), 115 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_path.c b/drivers/net/ethernet/mediatek/mtk_eth_path.c index 28960e4c4e43..ef11cf3d1ccc 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_path.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_path.c @@ -239,10 +239,9 @@ static int mtk_eth_mux_setup(struct mtk_eth *eth, int path) return err; } -static int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id) +int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id) { - unsigned int val = 0; - int sid, err, path; + int err, path; path = (mac_id == 0) ? MTK_ETH_PATH_GMAC1_SGMII : MTK_ETH_PATH_GMAC2_SGMII; @@ -252,33 +251,10 @@ static int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id) if (err) return err; - /* The path GMAC to SGMII will be enabled once the SGMIISYS is being - * setup done. - */ - regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); - - regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0, - SYSCFG0_SGMII_MASK, ~(u32)SYSCFG0_SGMII_MASK); - - /* Decide how GMAC and SGMIISYS be mapped */ - sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? 0 : mac_id; - - /* Setup SGMIISYS with the determined property */ - if (MTK_HAS_FLAGS(eth->sgmii->flags[sid], MTK_SGMII_PHYSPEED_AN)) - err = mtk_sgmii_setup_mode_an(eth->sgmii, sid); - else - err = mtk_sgmii_setup_mode_force(eth->sgmii, sid); - - if (err) - return err; - - regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0, - SYSCFG0_SGMII_MASK, val); - return 0; } -static int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id) +int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id) { int err, path = 0; @@ -296,7 +272,7 @@ static int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id) return 0; } -static int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id) +int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id) { int err, path; @@ -311,46 +287,3 @@ static int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id) return 0; } -int mtk_setup_hw_path(struct mtk_eth *eth, int mac_id, int phymode) -{ - int err; - - /* No mux'ing for MT7628/88 */ - if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) - return 0; - - switch (phymode) { - case PHY_INTERFACE_MODE_TRGMII: - case PHY_INTERFACE_MODE_RGMII_TXID: - case PHY_INTERFACE_MODE_RGMII_RXID: - case PHY_INTERFACE_MODE_RGMII_ID: - case PHY_INTERFACE_MODE_RGMII: - case PHY_INTERFACE_MODE_MII: - case PHY_INTERFACE_MODE_REVMII: - case PHY_INTERFACE_MODE_RMII: - if (MTK_HAS_CAPS(eth->soc->caps, MTK_RGMII)) { - err = mtk_gmac_rgmii_path_setup(eth, mac_id); - if (err) - return err; - } - break; - case PHY_INTERFACE_MODE_SGMII: - if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) { - err = mtk_gmac_sgmii_path_setup(eth, mac_id); - if (err) - return err; - } - break; - case PHY_INTERFACE_MODE_GMII: - if (MTK_HAS_CAPS(eth->soc->caps, MTK_GEPHY)) { - err = mtk_gmac_gephy_path_setup(eth, mac_id); - if (err) - return err; - } - break; - default: - break; - } - - return 0; -} diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 7d2566dd4ce0..b41884e12434 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -193,8 +193,8 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, struct mtk_mac *mac = container_of(config, struct mtk_mac, phylink_config); struct mtk_eth *eth = mac->hw; - u32 mcr_cur, mcr_new; - int val, ge_mode = 0; + u32 mcr_cur, mcr_new, sid; + int val, ge_mode, err; /* MT76x8 has no hardware settings between for the MAC */ if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628) && @@ -208,29 +208,42 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, MTK_GMAC1_TRGMII)) goto err_phy; /* fall through */ - case PHY_INTERFACE_MODE_GMII: case PHY_INTERFACE_MODE_RGMII_TXID: case PHY_INTERFACE_MODE_RGMII_RXID: case PHY_INTERFACE_MODE_RGMII_ID: case PHY_INTERFACE_MODE_RGMII: - break; case PHY_INTERFACE_MODE_MII: - ge_mode = 1; - break; case PHY_INTERFACE_MODE_REVMII: - ge_mode = 2; - break; case PHY_INTERFACE_MODE_RMII: - if (mac->id) - goto err_phy; - ge_mode = 3; + if (MTK_HAS_CAPS(eth->soc->caps, MTK_RGMII)) { + err = mtk_gmac_rgmii_path_setup(eth, mac->id); + if (err) + goto init_err; + } + break; + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: + case PHY_INTERFACE_MODE_SGMII: + if (MTK_HAS_CAPS(eth->soc->caps, MTK_SGMII)) { + err = mtk_gmac_sgmii_path_setup(eth, mac->id); + if (err) + goto init_err; + } + break; + case PHY_INTERFACE_MODE_GMII: + if (MTK_HAS_CAPS(eth->soc->caps, MTK_GEPHY)) { + err = mtk_gmac_gephy_path_setup(eth, mac->id); + if (err) + goto init_err; + } break; default: goto err_phy; } /* Setup clock for 1st gmac */ - if (!mac->id && + if (!mac->id && state->interface != PHY_INTERFACE_MODE_SGMII && + !phy_interface_mode_is_8023z(state->interface) && MTK_HAS_CAPS(mac->hw->soc->caps, MTK_GMAC1_TRGMII)) { if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_TRGMII_MT7621_CLK)) { @@ -245,6 +258,23 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, } } + ge_mode = 0; + switch (state->interface) { + case PHY_INTERFACE_MODE_MII: + ge_mode = 1; + break; + case PHY_INTERFACE_MODE_REVMII: + ge_mode = 2; + break; + case PHY_INTERFACE_MODE_RMII: + if (mac->id) + goto err_phy; + ge_mode = 3; + break; + default: + break; + } + /* put the gmac into the right mode */ regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); val &= ~SYSCFG0_GE_MODE(SYSCFG0_GE_MASK, mac->id); @@ -254,6 +284,40 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, mac->interface = state->interface; } + /* SGMII */ + if (state->interface == PHY_INTERFACE_MODE_SGMII || + phy_interface_mode_is_8023z(state->interface)) { + /* The path GMAC to SGMII will be enabled once the SGMIISYS is + * being setup done. + */ + regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); + + regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0, + SYSCFG0_SGMII_MASK, + ~(u32)SYSCFG0_SGMII_MASK); + + /* Decide how GMAC and SGMIISYS be mapped */ + sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? + 0 : mac->id; + + /* Setup SGMIISYS with the determined property */ + if (state->interface != PHY_INTERFACE_MODE_SGMII) + err = mtk_sgmii_setup_mode_force(eth->sgmii, sid, + state); + else if (phylink_autoneg_inband(mode)) + err = mtk_sgmii_setup_mode_an(eth->sgmii, sid); + + if (err) + goto init_err; + + regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0, + SYSCFG0_SGMII_MASK, val); + } else if (phylink_autoneg_inband(mode)) { + dev_err(eth->dev, + "In-band mode not supported in non SGMII mode!\n"); + return; + } + /* Setup gmac */ mcr_cur = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); mcr_new = mcr_cur; @@ -264,6 +328,7 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, MAC_MCR_BACKOFF_EN | MAC_MCR_BACKPR_EN | MAC_MCR_FORCE_LINK; switch (state->speed) { + case SPEED_2500: case SPEED_1000: mcr_new |= MAC_MCR_SPEED_1000; break; @@ -288,6 +353,11 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, err_phy: dev_err(eth->dev, "%s: GMAC%d mode %s not supported!\n", __func__, mac->id, phy_modes(state->interface)); + return; + +init_err: + dev_err(eth->dev, "%s: GMAC%d mode %s err: %d!\n", __func__, + mac->id, phy_modes(state->interface), err); } static int mtk_mac_link_state(struct phylink_config *config, @@ -326,7 +396,10 @@ static int mtk_mac_link_state(struct phylink_config *config, static void mtk_mac_an_restart(struct phylink_config *config) { - /* Do nothing */ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + + mtk_sgmii_restart_an(mac->hw, mac->id); } static void mtk_mac_link_down(struct phylink_config *config, unsigned int mode, @@ -366,7 +439,10 @@ static void mtk_validate(struct phylink_config *config, !(MTK_HAS_CAPS(mac->hw->soc->caps, MTK_RGMII) && phy_interface_mode_is_rgmii(state->interface)) && !(MTK_HAS_CAPS(mac->hw->soc->caps, MTK_TRGMII) && - !mac->id && state->interface == PHY_INTERFACE_MODE_TRGMII)) { + !mac->id && state->interface == PHY_INTERFACE_MODE_TRGMII) && + !(MTK_HAS_CAPS(mac->hw->soc->caps, MTK_SGMII) && + (state->interface == PHY_INTERFACE_MODE_SGMII || + phy_interface_mode_is_8023z(state->interface)))) { linkmode_zero(supported); return; } @@ -374,19 +450,53 @@ static void mtk_validate(struct phylink_config *config, phylink_set_port_modes(mask); phylink_set(mask, Autoneg); - if (state->interface == PHY_INTERFACE_MODE_TRGMII) { + switch (state->interface) { + case PHY_INTERFACE_MODE_TRGMII: phylink_set(mask, 1000baseT_Full); - } else { + break; + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_2500BASEX: + phylink_set(mask, 1000baseX_Full); + phylink_set(mask, 2500baseX_Full); + break; + case PHY_INTERFACE_MODE_GMII: + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + phylink_set(mask, 1000baseT_Half); + /* fall through */ + case PHY_INTERFACE_MODE_SGMII: + phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseX_Full); + /* fall through */ + case PHY_INTERFACE_MODE_MII: + case PHY_INTERFACE_MODE_RMII: + case PHY_INTERFACE_MODE_REVMII: + case PHY_INTERFACE_MODE_NA: + default: phylink_set(mask, 10baseT_Half); phylink_set(mask, 10baseT_Full); phylink_set(mask, 100baseT_Half); phylink_set(mask, 100baseT_Full); + break; + } - if (state->interface != PHY_INTERFACE_MODE_MII) { - phylink_set(mask, 1000baseT_Half); + if (state->interface == PHY_INTERFACE_MODE_NA) { + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_SGMII)) { + phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseX_Full); + phylink_set(mask, 2500baseX_Full); + } + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_RGMII)) { phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseT_Half); phylink_set(mask, 1000baseX_Full); } + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_GEPHY)) { + phylink_set(mask, 1000baseT_Full); + phylink_set(mask, 1000baseT_Half); + } } phylink_set(mask, Pause); @@ -394,6 +504,11 @@ static void mtk_validate(struct phylink_config *config, linkmode_and(supported, supported, mask); linkmode_and(state->advertising, state->advertising, mask); + + /* We can only operate at 2500BaseX or 1000BaseX. If requested + * to advertise both, only report advertising at 2500BaseX. + */ + phylink_helper_basex_speed(state); } static const struct phylink_mac_ops mtk_phylink_ops = { diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 7f5f541daad7..76bd12cb8150 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -412,14 +412,38 @@ /* Register to auto-negotiation restart */ #define SGMSYS_PCS_CONTROL_1 0x0 #define SGMII_AN_RESTART BIT(9) +#define SGMII_ISOLATE BIT(10) +#define SGMII_AN_ENABLE BIT(12) +#define SGMII_LINK_STATYS BIT(18) +#define SGMII_AN_ABILITY BIT(19) +#define SGMII_AN_COMPLETE BIT(21) +#define SGMII_PCS_FAULT BIT(23) +#define SGMII_AN_EXPANSION_CLR BIT(30) /* Register to programmable link timer, the unit in 2 * 8ns */ #define SGMSYS_PCS_LINK_TIMER 0x18 #define SGMII_LINK_TIMER_DEFAULT (0x186a0 & GENMASK(19, 0)) /* Register to control remote fault */ -#define SGMSYS_SGMII_MODE 0x20 -#define SGMII_REMOTE_FAULT_DIS BIT(8) +#define SGMSYS_SGMII_MODE 0x20 +#define SGMII_IF_MODE_BIT0 BIT(0) +#define SGMII_SPEED_DUPLEX_AN BIT(1) +#define SGMII_SPEED_10 0x0 +#define SGMII_SPEED_100 BIT(2) +#define SGMII_SPEED_1000 BIT(3) +#define SGMII_DUPLEX_FULL BIT(4) +#define SGMII_IF_MODE_BIT5 BIT(5) +#define SGMII_REMOTE_FAULT_DIS BIT(8) +#define SGMII_CODE_SYNC_SET_VAL BIT(9) +#define SGMII_CODE_SYNC_SET_EN BIT(10) +#define SGMII_SEND_AN_ERROR_EN BIT(11) +#define SGMII_IF_MODE_MASK GENMASK(5, 1) + +/* Register to set SGMII speed, ANA RG_ Control Signals III*/ +#define SGMSYS_ANA_RG_CS3 0x2028 +#define RG_PHY_SPEED_MASK (BIT(2) | BIT(3)) +#define RG_PHY_SPEED_1_25G 0x0 +#define RG_PHY_SPEED_3_125G BIT(2) /* Register to power up QPHY */ #define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8 @@ -897,7 +921,12 @@ u32 mtk_r32(struct mtk_eth *eth, unsigned reg); int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np, u32 ana_rgc3); int mtk_sgmii_setup_mode_an(struct mtk_sgmii *ss, int id); -int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id); -int mtk_setup_hw_path(struct mtk_eth *eth, int mac_id, int phymode); +int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, + const struct phylink_link_state *state); +void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id); + +int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id); +int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id); +int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id); #endif /* MTK_ETH_H */ diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c index ff509d42d818..4db27dfc7ec1 100644 --- a/drivers/net/ethernet/mediatek/mtk_sgmii.c +++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c @@ -16,8 +16,7 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) { struct device_node *np; - const char *str; - int i, err; + int i; ss->ana_rgc3 = ana_rgc3; @@ -29,19 +28,6 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) ss->regmap[i] = syscon_node_to_regmap(np); if (IS_ERR(ss->regmap[i])) return PTR_ERR(ss->regmap[i]); - - err = of_property_read_string(np, "mediatek,physpeed", &str); - if (err) - return err; - - if (!strcmp(str, "2500")) - ss->flags[i] |= MTK_SGMII_PHYSPEED_2500; - else if (!strcmp(str, "1000")) - ss->flags[i] |= MTK_SGMII_PHYSPEED_1000; - else if (!strcmp(str, "auto")) - ss->flags[i] |= MTK_SGMII_PHYSPEED_AN; - else - return -EINVAL; } return 0; @@ -73,27 +59,45 @@ int mtk_sgmii_setup_mode_an(struct mtk_sgmii *ss, int id) return 0; } -int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id) +int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id, + const struct phylink_link_state *state) { unsigned int val; - int mode; if (!ss->regmap[id]) return -EINVAL; regmap_read(ss->regmap[id], ss->ana_rgc3, &val); - val &= ~GENMASK(3, 2); - mode = ss->flags[id] & MTK_SGMII_PHYSPEED_MASK; - val |= (mode == MTK_SGMII_PHYSPEED_1000) ? 0 : BIT(2); + val &= ~RG_PHY_SPEED_MASK; + if (state->interface == PHY_INTERFACE_MODE_2500BASEX) + val |= RG_PHY_SPEED_3_125G; regmap_write(ss->regmap[id], ss->ana_rgc3, val); /* Disable SGMII AN */ regmap_read(ss->regmap[id], SGMSYS_PCS_CONTROL_1, &val); - val &= ~BIT(12); + val &= ~SGMII_AN_ENABLE; regmap_write(ss->regmap[id], SGMSYS_PCS_CONTROL_1, val); /* SGMII force mode setting */ - val = 0x31120019; + regmap_read(ss->regmap[id], SGMSYS_SGMII_MODE, &val); + val &= ~SGMII_IF_MODE_MASK; + + switch (state->speed) { + case SPEED_10: + val |= SGMII_SPEED_10; + break; + case SPEED_100: + val |= SGMII_SPEED_100; + break; + case SPEED_2500: + case SPEED_1000: + val |= SGMII_SPEED_1000; + break; + }; + + if (state->duplex == DUPLEX_FULL) + val |= SGMII_DUPLEX_FULL; + regmap_write(ss->regmap[id], SGMSYS_SGMII_MODE, val); /* Release PHYA power down state */ @@ -103,3 +107,20 @@ int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id) return 0; } + +void mtk_sgmii_restart_an(struct mtk_eth *eth, int mac_id) +{ + struct mtk_sgmii *ss = eth->sgmii; + unsigned int val, sid; + + /* Decide how GMAC and SGMIISYS be mapped */ + sid = (MTK_HAS_CAPS(eth->soc->caps, MTK_SHARED_SGMII)) ? + 0 : mac_id; + + if (!ss->regmap[sid]) + return; + + regmap_read(ss->regmap[sid], SGMSYS_PCS_CONTROL_1, &val); + val |= SGMII_AN_RESTART; + regmap_write(ss->regmap[sid], SGMSYS_PCS_CONTROL_1, val); +} From patchwork Sun Aug 25 17:43:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Ren=C3=A9_van_Dorst?= X-Patchwork-Id: 11113583 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BB1D814DE for ; Sun, 25 Aug 2019 17:44:36 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 97ECD206DD for ; Sun, 25 Aug 2019 17:44:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="TfObCA+j"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=vdorst.com header.i=@vdorst.com header.b="nro0kzTL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97ECD206DD Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=vdorst.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WZjN+MMZz54Eq5e0gkF/XeAPVwbKZUgt5wbT36IraYs=; b=TfObCA+j9h3cT8 1X8iklNpRfyh8Mot2mZyw3KFHxtpN6EHRMjvr346s4lA+u8l7gw+dGu39Mdk0qnOTz6/emQrr4P+r uFT5BRugACFGcL60llraNh1OiNZtor4kaQaM9BxYCG3F8FPlIaU3rIOIErHKImCl65pQmuvbHXadc sulxn/lRbvyiwPPWqu1L86vlm/4VpUWoBCbziAUCMGuHA17g4J14vyJzsUuwYYg7SVVdpADT6+D+u a4sbu0auX+ssOABZj0impqo9TYgEJ2NdNFBK0qcP5NrfbjufSCg95gewjWEU36hH/F73LwmsaQh1a LdZElbc3GJ3z71o52QVw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i1wZA-0007KL-2O; Sun, 25 Aug 2019 17:44:36 +0000 Received: from mx.0dd.nl ([5.2.79.48]) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i1wYY-0006iH-3V; Sun, 25 Aug 2019 17:44:00 +0000 Received: from mail.vdorst.com (mail.vdorst.com [IPv6:fd01::250]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx.0dd.nl (Postfix) with ESMTPS id 5BA3E5FD28; Sun, 25 Aug 2019 19:43:55 +0200 (CEST) Authentication-Results: mx.0dd.nl; dkim=pass (2048-bit key) header.d=vdorst.com header.i=@vdorst.com header.b="nro0kzTL"; dkim-atps=neutral Received: from pc-rene.vdorst.com (pc-rene.vdorst.com [192.168.2.125]) by mail.vdorst.com (Postfix) with ESMTPA id 1FFD71D8E168; Sun, 25 Aug 2019 19:43:55 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 mail.vdorst.com 1FFD71D8E168 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vdorst.com; s=default; t=1566755035; bh=6lat4PIPVb1cltboLCPg5/gDn73phY2LzDM8oNuT0Ao=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nro0kzTLs7e2U41CqK11e9uw/2xPpBR6Jjz8+4Gy4czDwpbnP1ZdVdilnLHkeHags MJ1ZnbghbRGVjntOFriY22pAsP0TnchYwwU4tgqtAFBIk6A+wZZJilXR4eRr3Ii75y ovjKiQCmdHk19S5xjxLTk3ke3L4dD1rMVlGuULzlCpwVPBCD93isymHA2Lx7gFclsv R4NGXUTX39J1IdzCWHC4RNcbFq5aP1EIFIoX9jgLqdgA6WKgMJim6IKQ3vpnnhGZb7 yftwEGwFfj1/iBZ1WdFthOwjnYQ052rb+y0NayqmGtos/Eaw9ZJaW9u3YSDHwBuTCa YS2ukcEQYA/1Q== From: =?utf-8?q?Ren=C3=A9_van_Dorst?= To: John Crispin , Sean Wang , Nelson Chang , "David S . Miller" , Matthias Brugger Subject: [PATCH net-next v4 3/3] dt-bindings: net: ethernet: Update mt7622 docs and dts to reflect the new phylink API Date: Sun, 25 Aug 2019 19:43:41 +0200 Message-Id: <20190825174341.20750-4-opensource@vdorst.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190825174341.20750-1-opensource@vdorst.com> References: <20190825174341.20750-1-opensource@vdorst.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190825_104358_435423_171992E5 X-CRM114-Status: GOOD ( 13.72 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frank Wunderlich , netdev@vger.kernel.org, linux-mips@vger.kernel.org, Russell King , =?utf-8?q?Ren=C3=A9_van_Dorst?= , linux-mediatek@lists.infradead.org, Stefan Roese , linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org This patch the removes the recently added mediatek,physpeed property. Use the fixed-link property speed = <2500> to set the phy in 2.5Gbit. See mt7622-bananapi-bpi-r64.dts for a working example. Signed-off-by: René van Dorst --- v3->v4: * no change v2->v3: * no change v1->v2: * SGMII port only support BASE-X at 2.5Gbit. --- .../arm/mediatek/mediatek,sgmiisys.txt | 2 -- .../dts/mediatek/mt7622-bananapi-bpi-r64.dts | 28 +++++++++++++------ arch/arm64/boot/dts/mediatek/mt7622.dtsi | 1 - 3 files changed, 19 insertions(+), 12 deletions(-) diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt index f5518f26a914..30cb645c0e54 100644 --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt @@ -9,8 +9,6 @@ Required Properties: - "mediatek,mt7622-sgmiisys", "syscon" - "mediatek,mt7629-sgmiisys", "syscon" - #clock-cells: Must be 1 -- mediatek,physpeed: Should be one of "auto", "1000" or "2500" to match up - the capability of the target PHY. The SGMIISYS controller uses the common clk binding from Documentation/devicetree/bindings/clock/clock-bindings.txt diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts index 710c5c3d87d3..83e10591e0e5 100644 --- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts +++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts @@ -115,24 +115,34 @@ }; ð { - pinctrl-names = "default"; - pinctrl-0 = <ð_pins>; status = "okay"; + gmac0: mac@0 { + compatible = "mediatek,eth-mac"; + reg = <0>; + phy-mode = "2500base-x"; + + fixed-link { + speed = <2500>; + full-duplex; + pause; + }; + }; gmac1: mac@1 { compatible = "mediatek,eth-mac"; reg = <1>; - phy-handle = <&phy5>; + phy-mode = "rgmii"; + + fixed-link { + speed = <1000>; + full-duplex; + pause; + }; }; - mdio-bus { + mdio: mdio-bus { #address-cells = <1>; #size-cells = <0>; - - phy5: ethernet-phy@5 { - reg = <5>; - phy-mode = "sgmii"; - }; }; }; diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi index d1e13d340e26..dac51e98204c 100644 --- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi @@ -931,6 +931,5 @@ "syscon"; reg = <0 0x1b128000 0 0x3000>; #clock-cells = <1>; - mediatek,physpeed = "2500"; }; };