diff options
Diffstat (limited to 'target/linux/ramips/patches-5.10/710-at803x.patch')
| -rw-r--r-- | target/linux/ramips/patches-5.10/710-at803x.patch | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/target/linux/ramips/patches-5.10/710-at803x.patch b/target/linux/ramips/patches-5.10/710-at803x.patch new file mode 100644 index 0000000000..2b0407d525 --- /dev/null +++ b/target/linux/ramips/patches-5.10/710-at803x.patch @@ -0,0 +1,149 @@ +From 924453aa9d2324e5611f8e2b71df746d8f0c79f1 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com> +Date: Fri, 13 Nov 2020 16:11:32 +0100 +Subject: [PATCH] net: phy: at803x: add support for SFP module in + RGMII-to-x-base mode +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Signed-off-by: René van Dorst <opensource@vdorst.com> +--- + drivers/net/phy/at803x.c | 91 ++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 91 insertions(+) + +--- a/drivers/net/phy/at803x.c ++++ b/drivers/net/phy/at803x.c +@@ -20,6 +20,8 @@ + #include <linux/regulator/driver.h> + #include <linux/regulator/consumer.h> + #include <dt-bindings/net/qca-ar803x.h> ++#include <linux/sfp.h> ++#include <linux/phylink.h> + + #define AT803X_SPECIFIC_FUNCTION_CONTROL 0x10 + #define AT803X_SFC_ASSERT_CRS BIT(11) +@@ -83,9 +85,18 @@ + + #define AT803X_MODE_CFG_MASK 0x0F + #define AT803X_MODE_CFG_SGMII 0x01 ++#define AT803X_MODE_CFG_BX1000_RGMII_50 0x02 ++#define AT803X_MODE_CFG_BX1000_RGMII_75 0x03 ++#define AT803X_MODE_FIBER 0x01 ++#define AT803X_MODE_COPPER 0x00 + + #define AT803X_PSSR 0x11 /*PHY-Specific Status Register*/ + #define AT803X_PSSR_MR_AN_COMPLETE 0x0200 ++#define PSSR_LINK BIT(10) ++#define PSSR_SYNC_STATUS BIT(8) ++#define PSSR_DUPLEX BIT(13) ++#define PSSR_SPEED_1000 BIT(15) ++#define PSSR_SPEED_100 BIT(14) + + #define AT803X_DEBUG_REG_0 0x00 + #define AT803X_DEBUG_RX_CLK_DLY_EN BIT(15) +@@ -505,10 +516,72 @@ static int at803x_parse_dt(struct phy_de + return 0; + } + ++static int at803x_mode(struct phy_device *phydev) ++{ ++ int mode; ++ ++ mode = phy_read(phydev, AT803X_REG_CHIP_CONFIG) & AT803X_MODE_CFG_MASK; ++ ++ if (mode == AT803X_MODE_CFG_BX1000_RGMII_50 || ++ mode == AT803X_MODE_CFG_BX1000_RGMII_75) ++ return AT803X_MODE_FIBER; ++ return AT803X_MODE_COPPER; ++} ++ ++static int at803x_sfp_insert(void *upstream, const struct sfp_eeprom_id *id) ++{ ++ __ETHTOOL_DECLARE_LINK_MODE_MASK(at803x_support) = { 0, }; ++ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, }; ++ struct phy_device *phydev = upstream; ++ phy_interface_t iface; ++ ++ phylink_set(at803x_support, 1000baseX_Full); ++ /* AT803x only support 1000baseX but SGMII works fine when module runs ++ * at 1Gbit. ++ */ ++ phylink_set(at803x_support, 1000baseT_Full); ++ ++ sfp_parse_support(phydev->sfp_bus, id, support); ++ ++ // Limit to interfaces that both sides support ++ linkmode_and(support, support, at803x_support); ++ ++ if (linkmode_empty(support)) ++ goto unsupported_mode; ++ ++ iface = sfp_select_interface(phydev->sfp_bus, support); ++ ++ if (iface != PHY_INTERFACE_MODE_SGMII && ++ iface != PHY_INTERFACE_MODE_1000BASEX) ++ goto unsupported_mode; ++ ++ dev_info(&phydev->mdio.dev, "SFP interface %s", phy_modes(iface)); ++ ++ return 0; ++ ++unsupported_mode: ++ dev_info(&phydev->mdio.dev, "incompatible SFP module inserted;" ++ "Only SGMII at 1Gbit/1000BASEX are supported!\n"); ++ return -EINVAL; ++} ++ ++static const struct sfp_upstream_ops at803x_sfp_ops = { ++ .attach = phy_sfp_attach, ++ .detach = phy_sfp_detach, ++ .module_insert = at803x_sfp_insert, ++}; ++ + static int at803x_probe(struct phy_device *phydev) + { + struct device *dev = &phydev->mdio.dev; + struct at803x_priv *priv; ++ int ret; ++ ++ if (at803x_mode(phydev) == AT803X_MODE_FIBER) { ++ ret = phy_sfp_probe(phydev, &at803x_sfp_ops); ++ if (ret < 0) ++ return ret; ++ } + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) +@@ -709,6 +782,10 @@ static int at803x_read_status(struct phy + { + int ss, err, old_link = phydev->link; + ++ /* Handle (Fiber) SGMII to RGMII mode */ ++ if (at803x_mode(phydev) == AT803X_MODE_FIBER) ++ return genphy_c37_read_status(phydev); ++ + /* Update the link, but return if there was an error */ + err = genphy_update_link(phydev); + if (err) +@@ -809,6 +886,12 @@ static int at803x_config_aneg(struct phy + { + int ret; + ++ /* Handle (Fiber) SerDes to RGMII mode */ ++ if (at803x_mode(phydev) == AT803X_MODE_FIBER) { ++ pr_warn("%s: fiber\n", __func__); ++ return genphy_c37_config_aneg(phydev); ++ } ++ + ret = at803x_config_mdix(phydev, phydev->mdix_ctrl); + if (ret < 0) + return ret; +@@ -1120,6 +1203,7 @@ static struct phy_driver at803x_driver[] + .suspend = at803x_suspend, + .resume = at803x_resume, + /* PHY_GBIT_FEATURES */ ++ .config_aneg = at803x_config_aneg, + .read_status = at803x_read_status, + .aneg_done = at803x_aneg_done, + .ack_interrupt = &at803x_ack_interrupt, |