From: Daniel Golle Date: Mon, 15 Aug 2022 16:50:10 +0000 (+0200) Subject: kernel: add pending mtk_sgmii and phy improvements from @lynxis X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=e504fdae4e1d0e7ae112828ec9f71db6f9821c71;p=openwrt%2Fstaging%2Fsvanheule.git kernel: add pending mtk_sgmii and phy improvements from @lynxis Add pending patches from Alexander 'lynxis' Couzens which are required for RealTek NBase-T PHYs or SFP+ cages to work when connected to the SGMII interface provided by recent MediaTek SoCs [1]. The patches for MT753x fix link speed limitation on CPU ports observed by many users which is due to reset being carried out wrongly [2]. [1]: https://patchwork.kernel.org/project/netdevbpf/list/?series=669488&state=* [2]: https://patchwork.kernel.org/project/netdevbpf/list/?series=669486&state=* Signed-off-by: Daniel Golle --- diff --git a/target/linux/generic/pending-5.15/721-net-phy-realtek-rtl8221-allow-to-configure-SERDES-mo.patch b/target/linux/generic/pending-5.15/721-net-phy-realtek-rtl8221-allow-to-configure-SERDES-mo.patch new file mode 100644 index 0000000000..703a0b8b72 --- /dev/null +++ b/target/linux/generic/pending-5.15/721-net-phy-realtek-rtl8221-allow-to-configure-SERDES-mo.patch @@ -0,0 +1,101 @@ +From ace6abaa0f9203083fe4c0a6a74da2d96410b625 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Sat, 13 Aug 2022 12:49:33 +0200 +Subject: [PATCH 01/10] net: phy: realtek: rtl8221: allow to configure SERDES + mode + +The rtl8221 supports multiple SERDES modes: +- SGMII +- 2500base-x +- HiSGMII + +Further it supports rate adaption on SERDES links to allow +slow ethernet speeds (10/100/1000mbit) to work on 2500base-x/HiSGMII +links without reducing the SERDES speed. + +When operating without rate adapters the SERDES link will follow the +ethernet speed. + +Signed-off-by: Alexander Couzens +--- + drivers/net/phy/realtek.c | 48 +++++++++++++++++++++++++++++++++++++++ + 1 file changed, 48 insertions(+) + +--- a/drivers/net/phy/realtek.c ++++ b/drivers/net/phy/realtek.c +@@ -53,6 +53,15 @@ + RTL8201F_ISR_LINK) + #define RTL8201F_IER 0x13 + ++#define RTL8221B_MMD_SERDES_CTRL MDIO_MMD_VEND1 ++#define RTL8221B_MMD_PHY_CTRL MDIO_MMD_VEND2 ++#define RTL8221B_SERDES_OPTION 0x697a ++#define RTL8221B_SERDES_OPTION_MODE_MASK GENMASK(5, 0) ++#define RTL8221B_SERDES_OPTION_MODE_2500BASEX_SGMII 0 ++#define RTL8221B_SERDES_OPTION_MODE_HISGMII_SGMII 1 ++#define RTL8221B_SERDES_OPTION_MODE_2500BASEX 2 ++#define RTL8221B_SERDES_OPTION_MODE_HISGMII 3 ++ + #define RTL8366RB_POWER_SAVE 0x15 + #define RTL8366RB_POWER_SAVE_ON BIT(12) + +@@ -841,6 +850,43 @@ static irqreturn_t rtl9000a_handle_inter + return IRQ_HANDLED; + } + ++static int rtl8221b_config_init(struct phy_device *phydev) ++{ ++ u16 option_mode; ++ ++ switch (phydev->interface) { ++ case PHY_INTERFACE_MODE_SGMII: ++ case PHY_INTERFACE_MODE_2500BASEX: ++ option_mode = RTL8221B_SERDES_OPTION_MODE_2500BASEX_SGMII; ++ break; ++ default: ++ return 0; ++ } ++ ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, ++ 0x75f3, 0); ++ ++ phy_modify_mmd_changed(phydev, RTL8221B_MMD_SERDES_CTRL, ++ RTL8221B_SERDES_OPTION, ++ RTL8221B_SERDES_OPTION_MODE_MASK, option_mode); ++ switch (option_mode) { ++ case RTL8221B_SERDES_OPTION_MODE_2500BASEX_SGMII: ++ case RTL8221B_SERDES_OPTION_MODE_2500BASEX: ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6a04, 0x0503); ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f10, 0xd455); ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f11, 0x8020); ++ break; ++ case RTL8221B_SERDES_OPTION_MODE_HISGMII_SGMII: ++ case RTL8221B_SERDES_OPTION_MODE_HISGMII: ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6a04, 0x0503); ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f10, 0xd433); ++ phy_write_mmd(phydev, RTL8221B_MMD_SERDES_CTRL, 0x6f11, 0x8020); ++ break; ++ } ++ ++ return 0; ++} ++ + static struct phy_driver realtek_drvs[] = { + { + PHY_ID_MATCH_EXACT(0x00008201), +@@ -981,6 +1027,7 @@ static struct phy_driver realtek_drvs[] + PHY_ID_MATCH_EXACT(0x001cc849), + .name = "RTL8221B-VB-CG 2.5Gbps PHY", + .get_features = rtl822x_get_features, ++ .config_init = rtl8221b_config_init, + .config_aneg = rtl822x_config_aneg, + .read_status = rtl822x_read_status, + .suspend = genphy_suspend, +@@ -992,6 +1039,7 @@ static struct phy_driver realtek_drvs[] + .name = "RTL8221B-VM-CG 2.5Gbps PHY", + .get_features = rtl822x_get_features, + .config_aneg = rtl822x_config_aneg, ++ .config_init = rtl8221b_config_init, + .read_status = rtl822x_read_status, + .suspend = genphy_suspend, + .resume = rtlgen_resume, diff --git a/target/linux/generic/pending-5.15/722-net-mt7531-only-do-PLL-once-after-the-reset.patch b/target/linux/generic/pending-5.15/722-net-mt7531-only-do-PLL-once-after-the-reset.patch new file mode 100644 index 0000000000..6fd450d7f9 --- /dev/null +++ b/target/linux/generic/pending-5.15/722-net-mt7531-only-do-PLL-once-after-the-reset.patch @@ -0,0 +1,67 @@ +From 9fec662b54fc956b776df15c704e996c61292850 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Sat, 13 Aug 2022 13:05:09 +0200 +Subject: [PATCH 02/10] net: mt7531: only do PLL once after the reset + +Move the PLL init of the switch out of the pad configuration of the port +6 (usally cpu port). + +Fix a unidirectional 100 mbit limitation on 1 gbit or 2.5 gbit links for +outbound traffic on port 5 or port 6. + +Signed-off-by: Alexander Couzens +--- + drivers/net/dsa/mt7530.c | 15 +++++++++------ + 1 file changed, 9 insertions(+), 6 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -506,14 +506,19 @@ static bool mt7531_dual_sgmii_supported( + static int + mt7531_pad_setup(struct dsa_switch *ds, phy_interface_t interface) + { +- struct mt7530_priv *priv = ds->priv; ++ return 0; ++} ++ ++static void ++mt7531_pll_setup(struct mt7530_priv *priv) ++{ + u32 top_sig; + u32 hwstrap; + u32 xtal; + u32 val; + + if (mt7531_dual_sgmii_supported(priv)) +- return 0; ++ return; + + val = mt7530_read(priv, MT7531_CREV); + top_sig = mt7530_read(priv, MT7531_TOP_SIG_SR); +@@ -592,8 +597,6 @@ mt7531_pad_setup(struct dsa_switch *ds, + val |= EN_COREPLL; + mt7530_write(priv, MT7531_PLLGP_EN, val); + usleep_range(25, 35); +- +- return 0; + } + + static void +@@ -2326,6 +2329,8 @@ mt7531_setup(struct dsa_switch *ds) + SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST | + SYS_CTRL_REG_RST); + ++ mt7531_pll_setup(priv); ++ + if (mt7531_dual_sgmii_supported(priv)) { + priv->p5_intf_sel = P5_INTF_SEL_GMAC5_SGMII; + +@@ -2882,8 +2887,6 @@ mt7531_cpu_port_config(struct dsa_switch + case 6: + interface = PHY_INTERFACE_MODE_2500BASEX; + +- mt7531_pad_setup(ds, interface); +- + priv->p6_interface = interface; + break; + default: diff --git a/target/linux/generic/pending-5.15/723-net-mt7531-ensure-all-MACs-are-powered-down-before-r.patch b/target/linux/generic/pending-5.15/723-net-mt7531-ensure-all-MACs-are-powered-down-before-r.patch new file mode 100644 index 0000000000..cc12d72110 --- /dev/null +++ b/target/linux/generic/pending-5.15/723-net-mt7531-ensure-all-MACs-are-powered-down-before-r.patch @@ -0,0 +1,28 @@ +From 3fb8841513c4ec3a2e5d366df86230c45f239a57 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Sat, 13 Aug 2022 13:08:22 +0200 +Subject: [PATCH 03/10] net: mt7531: ensure all MACs are powered down before + reset + +The datasheet [1] explicit describes it as requirement for a reset. + +[1] MT7531 Reference Manual for Development Board rev 1.0, page 735 + +Signed-off-by: Alexander Couzens +--- + drivers/net/dsa/mt7530.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -2324,6 +2324,10 @@ mt7531_setup(struct dsa_switch *ds) + return -ENODEV; + } + ++ /* all MACs must be forced link-down before sw reset */ ++ for (i = 0; i < MT7530_NUM_PORTS; i++) ++ mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK); ++ + /* Reset the switch through internal reset */ + mt7530_write(priv, MT7530_SYS_CTRL, + SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST | diff --git a/target/linux/generic/pending-5.15/724-net-mtk_sgmii-implement-mtk_pcs_ops.patch b/target/linux/generic/pending-5.15/724-net-mtk_sgmii-implement-mtk_pcs_ops.patch new file mode 100644 index 0000000000..896f0169d2 --- /dev/null +++ b/target/linux/generic/pending-5.15/724-net-mtk_sgmii-implement-mtk_pcs_ops.patch @@ -0,0 +1,44 @@ +From cbfed00575d15eafd85efd9619b7ecc0836a4aa7 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Sat, 13 Aug 2022 14:42:12 +0200 +Subject: [PATCH 04/10] net: mtk_sgmii: implement mtk_pcs_ops + +Implement mtk_pcs_ops for the SGMII pcs to read the current state +of the hardware. + +Signed-off-by: Alexander Couzens +[added DUPLEX_FULL] +Signed-off-by: Daniel Golle +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 15 +++++++++++++++ + 1 file changed, 15 insertions(+) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -122,10 +122,26 @@ static void mtk_pcs_link_up(struct phyli + regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); + } + ++static void mtk_pcs_get_state(struct phylink_pcs *pcs, struct phylink_link_state *state) ++{ ++ struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs); ++ unsigned int val; ++ ++ regmap_read(mpcs->regmap, mpcs->ana_rgc3, &val); ++ state->speed = val & RG_PHY_SPEED_3_125G ? SPEED_2500 : SPEED_1000; ++ ++ regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val); ++ state->an_complete = !!(val & SGMII_AN_COMPLETE); ++ state->link = !!(val & SGMII_LINK_STATYS); ++ state->duplex = DUPLEX_FULL; ++ state->pause = 0; ++} ++ + static const struct phylink_pcs_ops mtk_pcs_ops = { + .pcs_config = mtk_pcs_config, + .pcs_an_restart = mtk_pcs_restart_an, + .pcs_link_up = mtk_pcs_link_up, ++ .pcs_get_state = mtk_pcs_get_state, + }; + + int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3) diff --git a/target/linux/generic/pending-5.15/725-net-mtk_sgmii-fix-powering-up-the-SGMII-phy.patch b/target/linux/generic/pending-5.15/725-net-mtk_sgmii-fix-powering-up-the-SGMII-phy.patch new file mode 100644 index 0000000000..0fa357d48f --- /dev/null +++ b/target/linux/generic/pending-5.15/725-net-mtk_sgmii-fix-powering-up-the-SGMII-phy.patch @@ -0,0 +1,39 @@ +From 7f75f43fe2159123baa101fcc8c6faa0b0a4c598 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Sat, 13 Aug 2022 14:48:51 +0200 +Subject: [PATCH 05/10] net: mtk_sgmii: fix powering up the SGMII phy + +There are certain race condition when the SGMII_PHYA_PWD register still +contains 0x9 which prevents the SGMII from working properly. + +The SGMII still shows link but no traffic can flow. + +Signed-off-by: Alexander Couzens +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 8 ++------ + 1 file changed, 2 insertions(+), 6 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -36,9 +36,7 @@ static int mtk_pcs_setup_mode_an(struct + val |= SGMII_AN_RESTART; + regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); + +- regmap_read(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, &val); +- val &= ~SGMII_PHYA_PWD; +- regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, val); ++ regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0); + + return 0; + +@@ -70,9 +68,7 @@ static int mtk_pcs_setup_mode_force(stru + regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); + + /* Release PHYA power down state */ +- regmap_read(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, &val); +- val &= ~SGMII_PHYA_PWD; +- regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, val); ++ regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0); + + return 0; + } diff --git a/target/linux/generic/pending-5.15/726-net-mtk_sgmii-ensure-the-SGMII-PHY-is-powered-down-o.patch b/target/linux/generic/pending-5.15/726-net-mtk_sgmii-ensure-the-SGMII-PHY-is-powered-down-o.patch new file mode 100644 index 0000000000..329b41cf03 --- /dev/null +++ b/target/linux/generic/pending-5.15/726-net-mtk_sgmii-ensure-the-SGMII-PHY-is-powered-down-o.patch @@ -0,0 +1,65 @@ +From 9daea9b71d060d93d7394ac465b2e5ee0b7e7bca Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Mon, 15 Aug 2022 16:02:01 +0200 +Subject: [PATCH 06/10] net: mtk_sgmii: ensure the SGMII PHY is powered down on + configuration + +The code expect the PHY to be in power down (which is only true after reset). +Allow the changes of SGMII parameters more than once. +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 16 +++++++++++++++- + 1 file changed, 15 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -7,6 +7,7 @@ + * + */ + ++#include + #include + #include + #include +@@ -24,6 +25,9 @@ static int mtk_pcs_setup_mode_an(struct + { + unsigned int val; + ++ /* PHYA power down */ ++ regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, SGMII_PHYA_PWD); ++ + /* Setup the link timer and QPHY power up inside SGMIISYS */ + regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, + SGMII_LINK_TIMER_DEFAULT); +@@ -36,6 +40,10 @@ static int mtk_pcs_setup_mode_an(struct + val |= SGMII_AN_RESTART; + regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); + ++ /* Release PHYA power down state ++ * unknown how much the QPHY needs but it is racy without a sleep ++ */ ++ usleep_range(50, 100); + regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0); + + return 0; +@@ -50,6 +58,9 @@ static int mtk_pcs_setup_mode_force(stru + { + unsigned int val; + ++ /* PHYA power down */ ++ regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, SGMII_PHYA_PWD); ++ + regmap_read(mpcs->regmap, mpcs->ana_rgc3, &val); + val &= ~RG_PHY_SPEED_MASK; + if (interface == PHY_INTERFACE_MODE_2500BASEX) +@@ -67,7 +78,10 @@ static int mtk_pcs_setup_mode_force(stru + val |= SGMII_SPEED_1000; + regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); + +- /* Release PHYA power down state */ ++ /* Release PHYA power down state ++ * unknown how much the QPHY needs but it is racy without a sleep ++ */ ++ usleep_range(50, 100); + regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0); + + return 0; diff --git a/target/linux/generic/pending-5.15/727-net-mtk_sgmii-mtk_pcs_setup_mode_an-don-t-rely-on-re.patch b/target/linux/generic/pending-5.15/727-net-mtk_sgmii-mtk_pcs_setup_mode_an-don-t-rely-on-re.patch new file mode 100644 index 0000000000..5bc187cfc8 --- /dev/null +++ b/target/linux/generic/pending-5.15/727-net-mtk_sgmii-mtk_pcs_setup_mode_an-don-t-rely-on-re.patch @@ -0,0 +1,31 @@ +From e4dca7affb8c03438b63bdb5fddefd6ad2431cfd Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Mon, 15 Aug 2022 14:59:29 +0200 +Subject: [PATCH 07/10] net: mtk_sgmii: mtk_pcs_setup_mode_an: don't rely on + register defaults + +Ensure autonegotiation is enabled. + +Signed-off-by: Alexander Couzens +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -32,12 +32,13 @@ static int mtk_pcs_setup_mode_an(struct + regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, + SGMII_LINK_TIMER_DEFAULT); + ++ /* disable remote fault & enable auto neg */ + regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val); +- val |= SGMII_REMOTE_FAULT_DIS; ++ val |= SGMII_REMOTE_FAULT_DIS | SGMII_SPEED_DUPLEX_AN; + regmap_write(mpcs->regmap, SGMSYS_SGMII_MODE, val); + + regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &val); +- val |= SGMII_AN_RESTART; ++ val |= SGMII_AN_RESTART | SGMII_AN_ENABLE; + regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); + + /* Release PHYA power down state diff --git a/target/linux/generic/pending-5.15/728-net-mtk_sgmii-set-the-speed-according-to-the-phy-int.patch b/target/linux/generic/pending-5.15/728-net-mtk_sgmii-set-the-speed-according-to-the-phy-int.patch new file mode 100644 index 0000000000..0b17f77eef --- /dev/null +++ b/target/linux/generic/pending-5.15/728-net-mtk_sgmii-set-the-speed-according-to-the-phy-int.patch @@ -0,0 +1,47 @@ +From 952b64575613d26163a5afa5ff8bfdb57840091b Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Mon, 15 Aug 2022 15:00:14 +0200 +Subject: [PATCH 08/10] net: mtk_sgmii: set the speed according to the phy + interface in AN + +The non auto-negotioting code path is setting the correct speed for the +interface. Ensure auto-negotiation code path is doing it as well. + +Signed-off-by: Alexander Couzens +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 11 +++++++++-- + 1 file changed, 9 insertions(+), 2 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -21,13 +21,20 @@ static struct mtk_pcs *pcs_to_mtk_pcs(st + } + + /* For SGMII interface mode */ +-static int mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs) ++static int mtk_pcs_setup_mode_an(struct mtk_pcs *mpcs, phy_interface_t interface) + { + unsigned int val; + + /* PHYA power down */ + regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, SGMII_PHYA_PWD); + ++ /* Set SGMII phy speed */ ++ regmap_read(mpcs->regmap, mpcs->ana_rgc3, &val); ++ val &= ~RG_PHY_SPEED_MASK; ++ if (interface == PHY_INTERFACE_MODE_2500BASEX) ++ val |= RG_PHY_SPEED_3_125G; ++ regmap_write(mpcs->regmap, mpcs->ana_rgc3, val); ++ + /* Setup the link timer and QPHY power up inside SGMIISYS */ + regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, + SGMII_LINK_TIMER_DEFAULT); +@@ -100,7 +107,7 @@ static int mtk_pcs_config(struct phylink + if (interface != PHY_INTERFACE_MODE_SGMII) + err = mtk_pcs_setup_mode_force(mpcs, interface); + else if (phylink_autoneg_inband(mode)) +- err = mtk_pcs_setup_mode_an(mpcs); ++ err = mtk_pcs_setup_mode_an(mpcs, interface); + + return err; + } diff --git a/target/linux/generic/pending-5.15/729-net-mtk_eth_soc-improve-comment.patch b/target/linux/generic/pending-5.15/729-net-mtk_eth_soc-improve-comment.patch new file mode 100644 index 0000000000..80144850ec --- /dev/null +++ b/target/linux/generic/pending-5.15/729-net-mtk_eth_soc-improve-comment.patch @@ -0,0 +1,22 @@ +From 06773f19cffd6c9d34dcbc8320169afef5ab60ba Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Mon, 15 Aug 2022 13:58:07 +0200 +Subject: [PATCH 09/10] net: mtk_eth_soc: improve comment + +Signed-off-by: Alexander Couzens +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -80,7 +80,8 @@ static int mtk_pcs_setup_mode_force(stru + val &= ~SGMII_AN_ENABLE; + regmap_write(mpcs->regmap, SGMSYS_PCS_CONTROL_1, val); + +- /* Set the speed etc but leave the duplex unchanged */ ++ /* Set the speed etc but leave the duplex unchanged. ++ * The SGMII mode for 2.5gbit is the same as for 1gbit, expect the speed in ANA_RGC3 */ + regmap_read(mpcs->regmap, SGMSYS_SGMII_MODE, &val); + val &= SGMII_DUPLEX_FULL | ~SGMII_IF_MODE_MASK; + val |= SGMII_SPEED_1000; diff --git a/target/linux/generic/pending-5.15/730-mtk_sgmii-enable-PCS-polling-to-allow-SFP-work.patch b/target/linux/generic/pending-5.15/730-mtk_sgmii-enable-PCS-polling-to-allow-SFP-work.patch new file mode 100644 index 0000000000..6c7fd6a6bf --- /dev/null +++ b/target/linux/generic/pending-5.15/730-mtk_sgmii-enable-PCS-polling-to-allow-SFP-work.patch @@ -0,0 +1,23 @@ +From 95dcd0f223d7cab6e25bc19088016e5eb4ca1804 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens +Date: Tue, 16 Aug 2022 00:22:11 +0200 +Subject: [PATCH 10/10] mtk_sgmii: enable PCS polling to allow SFP work + +Currently there is no IRQ handling (even the SGMII supports it). +Enable polling to support SFP ports. + +Signed-off-by: Alexander Couzens +--- + drivers/net/ethernet/mediatek/mtk_sgmii.c | 1 + + 1 file changed, 1 insertion(+) + +--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c ++++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c +@@ -180,6 +180,7 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, + return PTR_ERR(ss->pcs[i].regmap); + + ss->pcs[i].pcs.ops = &mtk_pcs_ops; ++ ss->pcs[i].pcs.poll = 1; + } + + return 0;