From f7d0a4797feaee0c03d3f1cd5459702b13337ba2 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sun, 30 Apr 2023 14:32:03 +0100 Subject: [PATCH] generic: mt7530: backport support for the MT7988 built-in switch Backport commits adding support for the MT7988 built-in switch to the mt7530 driver. This change results in the Kconfig symbol NET_DSA_MT7530 to be extended by NET_DSA_MT7530_MDIO (everything formally covered by NET_DSA_MT7530) and NET_DSA_MT7530_MMIO (a new driver for the MMIO-connected built-in switch of the MT7988 SoC). Select NET_DSA_MT7530_MDIO for all targets previously selecting NET_DSA_MT7530, with the exception of mediatek/filogic which also selects NET_DSA_MT7530_MMIO. Signed-off-by: Daniel Golle (cherry picked from commit 958fdf36e35c814eb83faf2c39db4ca379c921b5) --- ...ake-some-noise-if-register-read-fail.patch | 32 + ...a-mt7530-refactor-SGMII-PCS-creation.patch | 111 +++ ...mt7530-use-unlocked-regmap-accessors.patch | 74 ++ ...se-regmap-to-access-switch-register-.patch | 224 ++++++ ...ove-SGMII-PCS-creation-to-mt7530_pro.patch | 54 ++ ...t-dsa-mt7530-introduce-mutex-helpers.patch | 273 +++++++ ...ove-p5_intf_modes-function-to-mt7530.patch | 75 ++ ...ntroduce-mt7530_probe_common-helper-.patch | 155 ++++ ...ntroduce-mt7530_remove_common-helper.patch | 55 ++ ...plit-off-common-parts-from-mt7531_se.patch | 143 ++++ ...t7530-introduce-separate-MDIO-driver.patch | 692 ++++++++++++++++++ ...kip-locking-if-MDIO-bus-isn-t-presen.patch | 47 ++ ...ntroduce-driver-for-MT7988-built-in-.patch | 421 +++++++++++ ...-dsa-mt7530-fix-support-for-MT7531BE.patch | 118 +++ ...or-Motorcomm-yt8521-gigabit-ethernet.patch | 2 +- ...d-driver-for-OCOTP-in-Sunplus-SP7021.patch | 2 +- ...001-nvmem-microchip-otpc-add-support.patch | 2 +- ...e-all-MACs-are-powered-down-before-r.patch | 2 +- ...gister-OF-node-for-internal-MDIO-bus.patch | 4 +- target/linux/mediatek/filogic/config-5.15 | 2 + target/linux/mediatek/mt7622/config-5.15 | 2 + target/linux/mediatek/mt7623/config-5.15 | 2 + target/linux/mediatek/mt7629/config-5.15 | 2 + target/linux/ramips/mt7621/config-5.15 | 2 + ...hdog-add-realtek-otto-watchdog-timer.patch | 2 +- ...t-dsa-add-support-for-rtl838x-switch.patch | 4 +- 26 files changed, 2493 insertions(+), 9 deletions(-) create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0001-net-dsa-mt7530-make-some-noise-if-register-read-fail.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0002-net-dsa-mt7530-refactor-SGMII-PCS-creation.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0004-net-dsa-mt7530-use-regmap-to-access-switch-register-.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0005-net-dsa-mt7530-move-SGMII-PCS-creation-to-mt7530_pro.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0006-net-dsa-mt7530-introduce-mutex-helpers.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0007-net-dsa-mt7530-move-p5_intf_modes-function-to-mt7530.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0008-net-dsa-mt7530-introduce-mt7530_probe_common-helper-.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0009-net-dsa-mt7530-introduce-mt7530_remove_common-helper.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0010-net-dsa-mt7530-split-off-common-parts-from-mt7531_se.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0011-net-dsa-mt7530-introduce-separate-MDIO-driver.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0012-net-dsa-mt7530-skip-locking-if-MDIO-bus-isn-t-presen.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0013-net-dsa-mt7530-introduce-driver-for-MT7988-built-in-.patch create mode 100644 target/linux/generic/backport-5.15/790-v6.4-0014-net-dsa-mt7530-fix-support-for-MT7531BE.patch diff --git a/target/linux/generic/backport-5.15/790-v6.4-0001-net-dsa-mt7530-make-some-noise-if-register-read-fail.patch b/target/linux/generic/backport-5.15/790-v6.4-0001-net-dsa-mt7530-make-some-noise-if-register-read-fail.patch new file mode 100644 index 0000000000..ffbdde5a57 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0001-net-dsa-mt7530-make-some-noise-if-register-read-fail.patch @@ -0,0 +1,32 @@ +From b6f56cddb5f57a0b8da0ce582232a2f1933558c6 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:17:19 +0100 +Subject: [PATCH 04/16] net: dsa: mt7530: make some noise if register read + fails + +Simply returning the negative error value instead of the read value +doesn't seem like a good idea. Return 0 instead and add WARN_ON_ONCE(1) +so this kind of error will not go unnoticed. + +Suggested-by: Andrew Lunn +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -224,9 +224,10 @@ mt7530_mii_read(struct mt7530_priv *priv + /* MT7530 uses 31 as the pseudo port */ + ret = bus->write(bus, 0x1f, 0x1f, page); + if (ret < 0) { ++ WARN_ON_ONCE(1); + dev_err(&bus->dev, + "failed to read mt7530 register\n"); +- return ret; ++ return 0; + } + + lo = bus->read(bus, 0x1f, r); diff --git a/target/linux/generic/backport-5.15/790-v6.4-0002-net-dsa-mt7530-refactor-SGMII-PCS-creation.patch b/target/linux/generic/backport-5.15/790-v6.4-0002-net-dsa-mt7530-refactor-SGMII-PCS-creation.patch new file mode 100644 index 0000000000..8963d93d10 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0002-net-dsa-mt7530-refactor-SGMII-PCS-creation.patch @@ -0,0 +1,111 @@ +From 9ecc00164dc2300dfcd40afe549a8ee951dfea9f Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:17:30 +0100 +Subject: [PATCH 05/16] net: dsa: mt7530: refactor SGMII PCS creation + +Instead of macro templates use a dedidated function and allocated +regmap_config when creating the regmaps for the pcs-mtk-lynxi +instances. +This is in preparation to switching to use unlocked regmap accessors +and have regmap's locking API handle locking for us. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 74 +++++++++++++++++++++++++++------------- + 1 file changed, 50 insertions(+), 24 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -2926,26 +2926,56 @@ static const struct regmap_bus mt7531_re + .reg_update_bits = mt7530_regmap_update_bits, + }; + +-#define MT7531_PCS_REGMAP_CONFIG(_name, _reg_base) \ +- { \ +- .name = _name, \ +- .reg_bits = 16, \ +- .val_bits = 32, \ +- .reg_stride = 4, \ +- .reg_base = _reg_base, \ +- .max_register = 0x17c, \ ++static int ++mt7531_create_sgmii(struct mt7530_priv *priv) ++{ ++ struct regmap_config *mt7531_pcs_config[2]; ++ struct phylink_pcs *pcs; ++ struct regmap *regmap; ++ int i, ret = 0; ++ ++ for (i = 0; i < 2; i++) { ++ mt7531_pcs_config[i] = devm_kzalloc(priv->dev, ++ sizeof(struct regmap_config), ++ GFP_KERNEL); ++ if (!mt7531_pcs_config[i]) { ++ ret = -ENOMEM; ++ break; ++ } ++ ++ mt7531_pcs_config[i]->name = i ? "port6" : "port5"; ++ mt7531_pcs_config[i]->reg_bits = 16; ++ mt7531_pcs_config[i]->val_bits = 32; ++ mt7531_pcs_config[i]->reg_stride = 4; ++ mt7531_pcs_config[i]->reg_base = MT7531_SGMII_REG_BASE(5 + i); ++ mt7531_pcs_config[i]->max_register = 0x17c; ++ ++ regmap = devm_regmap_init(priv->dev, ++ &mt7531_regmap_bus, priv, ++ mt7531_pcs_config[i]); ++ if (IS_ERR(regmap)) { ++ ret = PTR_ERR(regmap); ++ break; ++ } ++ pcs = mtk_pcs_lynxi_create(priv->dev, regmap, ++ MT7531_PHYA_CTRL_SIGNAL3, 0); ++ if (!pcs) { ++ ret = -ENXIO; ++ break; ++ } ++ priv->ports[5 + i].sgmii_pcs = pcs; + } + +-static const struct regmap_config mt7531_pcs_config[] = { +- MT7531_PCS_REGMAP_CONFIG("port5", MT7531_SGMII_REG_BASE(5)), +- MT7531_PCS_REGMAP_CONFIG("port6", MT7531_SGMII_REG_BASE(6)), +-}; ++ if (ret && i) ++ mtk_pcs_lynxi_destroy(priv->ports[5].sgmii_pcs); ++ ++ return ret; ++} + + static int + mt753x_setup(struct dsa_switch *ds) + { + struct mt7530_priv *priv = ds->priv; +- struct regmap *regmap; + int i, ret; + + /* Initialise the PCS devices */ +@@ -2967,15 +2997,11 @@ mt753x_setup(struct dsa_switch *ds) + if (ret && priv->irq) + mt7530_free_irq_common(priv); + +- if (priv->id == ID_MT7531) +- for (i = 0; i < 2; i++) { +- regmap = devm_regmap_init(ds->dev, +- &mt7531_regmap_bus, priv, +- &mt7531_pcs_config[i]); +- priv->ports[5 + i].sgmii_pcs = +- mtk_pcs_lynxi_create(ds->dev, regmap, +- MT7531_PHYA_CTRL_SIGNAL3, 0); +- } ++ if (priv->id == ID_MT7531) { ++ ret = mt7531_create_sgmii(priv); ++ if (ret && priv->irq) ++ mt7530_free_irq_common(priv); ++ } + + return ret; + } diff --git a/target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch b/target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch new file mode 100644 index 0000000000..1b4a956199 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0003-net-dsa-mt7530-use-unlocked-regmap-accessors.patch @@ -0,0 +1,74 @@ +From 1bd099c49f65ed923b9f19b8c4b3cd1ff0024091 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:17:40 +0100 +Subject: [PATCH 06/16] net: dsa: mt7530: use unlocked regmap accessors + +Instead of wrapping the locked register accessor functions, use the +unlocked variants and add locking wrapper functions to let regmap +handle the locking. + +This is a preparation towards being able to always use regmap to +access switch registers instead of open-coded accessor functions. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 23 ++++++++++++++--------- + 1 file changed, 14 insertions(+), 9 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -2899,7 +2899,7 @@ static int mt7530_regmap_read(void *cont + { + struct mt7530_priv *priv = context; + +- *val = mt7530_read(priv, reg); ++ *val = mt7530_mii_read(priv, reg); + return 0; + }; + +@@ -2907,23 +2907,25 @@ static int mt7530_regmap_write(void *con + { + struct mt7530_priv *priv = context; + +- mt7530_write(priv, reg, val); ++ mt7530_mii_write(priv, reg, val); + return 0; + }; + +-static int mt7530_regmap_update_bits(void *context, unsigned int reg, +- unsigned int mask, unsigned int val) ++static void ++mt7530_mdio_regmap_lock(void *mdio_lock) + { +- struct mt7530_priv *priv = context; ++ mutex_lock_nested(mdio_lock, MDIO_MUTEX_NESTED); ++} + +- mt7530_rmw(priv, reg, mask, val); +- return 0; +-}; ++static void ++mt7530_mdio_regmap_unlock(void *mdio_lock) ++{ ++ mutex_unlock(mdio_lock); ++} + + static const struct regmap_bus mt7531_regmap_bus = { + .reg_write = mt7530_regmap_write, + .reg_read = mt7530_regmap_read, +- .reg_update_bits = mt7530_regmap_update_bits, + }; + + static int +@@ -2949,6 +2951,9 @@ mt7531_create_sgmii(struct mt7530_priv * + mt7531_pcs_config[i]->reg_stride = 4; + mt7531_pcs_config[i]->reg_base = MT7531_SGMII_REG_BASE(5 + i); + mt7531_pcs_config[i]->max_register = 0x17c; ++ mt7531_pcs_config[i]->lock = mt7530_mdio_regmap_lock; ++ mt7531_pcs_config[i]->unlock = mt7530_mdio_regmap_unlock; ++ mt7531_pcs_config[i]->lock_arg = &priv->bus->mdio_lock; + + regmap = devm_regmap_init(priv->dev, + &mt7531_regmap_bus, priv, diff --git a/target/linux/generic/backport-5.15/790-v6.4-0004-net-dsa-mt7530-use-regmap-to-access-switch-register-.patch b/target/linux/generic/backport-5.15/790-v6.4-0004-net-dsa-mt7530-use-regmap-to-access-switch-register-.patch new file mode 100644 index 0000000000..2d8bab9da6 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0004-net-dsa-mt7530-use-regmap-to-access-switch-register-.patch @@ -0,0 +1,224 @@ +From a08c045580e060a6886bbb656c50ae20b0c780b5 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:17:52 +0100 +Subject: [PATCH 07/16] net: dsa: mt7530: use regmap to access switch register + space + +Use regmap API to access the switch register space. + +Signed-off-by: Daniel Golle +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 99 ++++++++++++++++++++++++---------------- + drivers/net/dsa/mt7530.h | 2 + + 2 files changed, 62 insertions(+), 39 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -183,9 +183,9 @@ core_clear(struct mt7530_priv *priv, u32 + } + + static int +-mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val) ++mt7530_regmap_write(void *context, unsigned int reg, unsigned int val) + { +- struct mii_bus *bus = priv->bus; ++ struct mii_bus *bus = context; + u16 page, r, lo, hi; + int ret; + +@@ -197,24 +197,34 @@ mt7530_mii_write(struct mt7530_priv *pri + /* MT7530 uses 31 as the pseudo port */ + ret = bus->write(bus, 0x1f, 0x1f, page); + if (ret < 0) +- goto err; ++ return ret; + + ret = bus->write(bus, 0x1f, r, lo); + if (ret < 0) +- goto err; ++ return ret; + + ret = bus->write(bus, 0x1f, 0x10, hi); +-err: ++ return ret; ++} ++ ++static int ++mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val) ++{ ++ int ret; ++ ++ ret = regmap_write(priv->regmap, reg, val); ++ + if (ret < 0) +- dev_err(&bus->dev, ++ dev_err(priv->dev, + "failed to write mt7530 register\n"); ++ + return ret; + } + +-static u32 +-mt7530_mii_read(struct mt7530_priv *priv, u32 reg) ++static int ++mt7530_regmap_read(void *context, unsigned int reg, unsigned int *val) + { +- struct mii_bus *bus = priv->bus; ++ struct mii_bus *bus = context; + u16 page, r, lo, hi; + int ret; + +@@ -223,17 +233,32 @@ mt7530_mii_read(struct mt7530_priv *priv + + /* MT7530 uses 31 as the pseudo port */ + ret = bus->write(bus, 0x1f, 0x1f, page); +- if (ret < 0) { ++ if (ret < 0) ++ return ret; ++ ++ lo = bus->read(bus, 0x1f, r); ++ hi = bus->read(bus, 0x1f, 0x10); ++ ++ *val = (hi << 16) | (lo & 0xffff); ++ ++ return 0; ++} ++ ++static u32 ++mt7530_mii_read(struct mt7530_priv *priv, u32 reg) ++{ ++ int ret; ++ u32 val; ++ ++ ret = regmap_read(priv->regmap, reg, &val); ++ if (ret) { + WARN_ON_ONCE(1); +- dev_err(&bus->dev, ++ dev_err(priv->dev, + "failed to read mt7530 register\n"); + return 0; + } + +- lo = bus->read(bus, 0x1f, r); +- hi = bus->read(bus, 0x1f, 0x10); +- +- return (hi << 16) | (lo & 0xffff); ++ return val; + } + + static void +@@ -283,14 +308,10 @@ mt7530_rmw(struct mt7530_priv *priv, u32 + u32 mask, u32 set) + { + struct mii_bus *bus = priv->bus; +- u32 val; + + mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); + +- val = mt7530_mii_read(priv, reg); +- val &= ~mask; +- val |= set; +- mt7530_mii_write(priv, reg, val); ++ regmap_update_bits(priv->regmap, reg, mask, set); + + mutex_unlock(&bus->mdio_lock); + } +@@ -298,7 +319,7 @@ mt7530_rmw(struct mt7530_priv *priv, u32 + static void + mt7530_set(struct mt7530_priv *priv, u32 reg, u32 val) + { +- mt7530_rmw(priv, reg, 0, val); ++ mt7530_rmw(priv, reg, val, val); + } + + static void +@@ -2895,22 +2916,6 @@ static const struct phylink_pcs_ops mt75 + .pcs_an_restart = mt7530_pcs_an_restart, + }; + +-static int mt7530_regmap_read(void *context, unsigned int reg, unsigned int *val) +-{ +- struct mt7530_priv *priv = context; +- +- *val = mt7530_mii_read(priv, reg); +- return 0; +-}; +- +-static int mt7530_regmap_write(void *context, unsigned int reg, unsigned int val) +-{ +- struct mt7530_priv *priv = context; +- +- mt7530_mii_write(priv, reg, val); +- return 0; +-}; +- + static void + mt7530_mdio_regmap_lock(void *mdio_lock) + { +@@ -2923,7 +2928,7 @@ mt7530_mdio_regmap_unlock(void *mdio_loc + mutex_unlock(mdio_lock); + } + +-static const struct regmap_bus mt7531_regmap_bus = { ++static const struct regmap_bus mt7530_regmap_bus = { + .reg_write = mt7530_regmap_write, + .reg_read = mt7530_regmap_read, + }; +@@ -2956,7 +2961,7 @@ mt7531_create_sgmii(struct mt7530_priv * + mt7531_pcs_config[i]->lock_arg = &priv->bus->mdio_lock; + + regmap = devm_regmap_init(priv->dev, +- &mt7531_regmap_bus, priv, ++ &mt7530_regmap_bus, priv->bus, + mt7531_pcs_config[i]); + if (IS_ERR(regmap)) { + ret = PTR_ERR(regmap); +@@ -3121,6 +3126,7 @@ MODULE_DEVICE_TABLE(of, mt7530_of_match) + static int + mt7530_probe(struct mdio_device *mdiodev) + { ++ static struct regmap_config *regmap_config; + struct mt7530_priv *priv; + struct device_node *dn; + +@@ -3200,6 +3206,21 @@ mt7530_probe(struct mdio_device *mdiodev + mutex_init(&priv->reg_mutex); + dev_set_drvdata(&mdiodev->dev, priv); + ++ regmap_config = devm_kzalloc(&mdiodev->dev, sizeof(*regmap_config), ++ GFP_KERNEL); ++ if (!regmap_config) ++ return -ENOMEM; ++ ++ regmap_config->reg_bits = 16; ++ regmap_config->val_bits = 32; ++ regmap_config->reg_stride = 4; ++ regmap_config->max_register = MT7530_CREV; ++ regmap_config->disable_locking = true; ++ priv->regmap = devm_regmap_init(priv->dev, &mt7530_regmap_bus, ++ priv->bus, regmap_config); ++ if (IS_ERR(priv->regmap)) ++ return PTR_ERR(priv->regmap); ++ + return dsa_register_switch(priv->ds); + } + +--- a/drivers/net/dsa/mt7530.h ++++ b/drivers/net/dsa/mt7530.h +@@ -747,6 +747,7 @@ struct mt753x_info { + * @dev: The device pointer + * @ds: The pointer to the dsa core structure + * @bus: The bus used for the device and built-in PHY ++ * @regmap: The regmap instance representing all switch registers + * @rstc: The pointer to reset control used by MCM + * @core_pwr: The power supplied into the core + * @io_pwr: The power supplied into the I/O +@@ -767,6 +768,7 @@ struct mt7530_priv { + struct device *dev; + struct dsa_switch *ds; + struct mii_bus *bus; ++ struct regmap *regmap; + struct reset_control *rstc; + struct regulator *core_pwr; + struct regulator *io_pwr; diff --git a/target/linux/generic/backport-5.15/790-v6.4-0005-net-dsa-mt7530-move-SGMII-PCS-creation-to-mt7530_pro.patch b/target/linux/generic/backport-5.15/790-v6.4-0005-net-dsa-mt7530-move-SGMII-PCS-creation-to-mt7530_pro.patch new file mode 100644 index 0000000000..0bb64c3c5e --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0005-net-dsa-mt7530-move-SGMII-PCS-creation-to-mt7530_pro.patch @@ -0,0 +1,54 @@ +From 6de2852297737171ba96b91e89bf302ca1fda869 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:18:04 +0100 +Subject: [PATCH 08/16] net: dsa: mt7530: move SGMII PCS creation to + mt7530_probe function + +Move creating the SGMII PCS from mt753x_setup() to the more appropriate +mt7530_probe() function. +This is done also in preparation of moving all functions related to +MDIO-connected MT753x switches to a separate module. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 13 +++++++------ + 1 file changed, 7 insertions(+), 6 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -3007,12 +3007,6 @@ mt753x_setup(struct dsa_switch *ds) + if (ret && priv->irq) + mt7530_free_irq_common(priv); + +- if (priv->id == ID_MT7531) { +- ret = mt7531_create_sgmii(priv); +- if (ret && priv->irq) +- mt7530_free_irq_common(priv); +- } +- + return ret; + } + +@@ -3129,6 +3123,7 @@ mt7530_probe(struct mdio_device *mdiodev + static struct regmap_config *regmap_config; + struct mt7530_priv *priv; + struct device_node *dn; ++ int ret; + + dn = mdiodev->dev.of_node; + +@@ -3221,6 +3216,12 @@ mt7530_probe(struct mdio_device *mdiodev + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + ++ if (priv->id == ID_MT7531) { ++ ret = mt7531_create_sgmii(priv); ++ if (ret) ++ return ret; ++ } ++ + return dsa_register_switch(priv->ds); + } + diff --git a/target/linux/generic/backport-5.15/790-v6.4-0006-net-dsa-mt7530-introduce-mutex-helpers.patch b/target/linux/generic/backport-5.15/790-v6.4-0006-net-dsa-mt7530-introduce-mutex-helpers.patch new file mode 100644 index 0000000000..c23f96e7a6 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0006-net-dsa-mt7530-introduce-mutex-helpers.patch @@ -0,0 +1,273 @@ +From 1557c679f71c82a994eae0baadbaeb62b71e15bf Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:18:16 +0100 +Subject: [PATCH 09/16] net: dsa: mt7530: introduce mutex helpers + +As the MDIO bus lock only needs to be involved if actually operating +on an MDIO-connected switch we will need to skip locking for built-in +switches which are accessed via MMIO. +Create helper functions which simplify that upcoming change. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 73 ++++++++++++++++++++-------------------- + 1 file changed, 36 insertions(+), 37 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -143,31 +143,40 @@ err: + } + + static void +-core_write(struct mt7530_priv *priv, u32 reg, u32 val) ++mt7530_mutex_lock(struct mt7530_priv *priv) + { +- struct mii_bus *bus = priv->bus; ++ mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED); ++} + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++static void ++mt7530_mutex_unlock(struct mt7530_priv *priv) ++{ ++ mutex_unlock(&priv->bus->mdio_lock); ++} ++ ++static void ++core_write(struct mt7530_priv *priv, u32 reg, u32 val) ++{ ++ mt7530_mutex_lock(priv); + + core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val); + +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + } + + static void + core_rmw(struct mt7530_priv *priv, u32 reg, u32 mask, u32 set) + { +- struct mii_bus *bus = priv->bus; + u32 val; + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + val = core_read_mmd_indirect(priv, reg, MDIO_MMD_VEND2); + val &= ~mask; + val |= set; + core_write_mmd_indirect(priv, reg, MDIO_MMD_VEND2, val); + +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + } + + static void +@@ -264,13 +273,11 @@ mt7530_mii_read(struct mt7530_priv *priv + static void + mt7530_write(struct mt7530_priv *priv, u32 reg, u32 val) + { +- struct mii_bus *bus = priv->bus; +- +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + mt7530_mii_write(priv, reg, val); + +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + } + + static u32 +@@ -282,14 +289,13 @@ _mt7530_unlocked_read(struct mt7530_dumm + static u32 + _mt7530_read(struct mt7530_dummy_poll *p) + { +- struct mii_bus *bus = p->priv->bus; + u32 val; + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(p->priv); + + val = mt7530_mii_read(p->priv, p->reg); + +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(p->priv); + + return val; + } +@@ -307,13 +313,11 @@ static void + mt7530_rmw(struct mt7530_priv *priv, u32 reg, + u32 mask, u32 set) + { +- struct mii_bus *bus = priv->bus; +- +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + regmap_update_bits(priv->regmap, reg, mask, set); + +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + } + + static void +@@ -645,14 +649,13 @@ static int + mt7531_ind_c45_phy_read(struct mt7530_priv *priv, int port, int devad, + int regnum) + { +- struct mii_bus *bus = priv->bus; + struct mt7530_dummy_poll p; + u32 reg, val; + int ret; + + INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, + !(val & MT7531_PHY_ACS_ST), 20, 100000); +@@ -685,7 +688,7 @@ mt7531_ind_c45_phy_read(struct mt7530_pr + + ret = val & MT7531_MDIO_RW_DATA_MASK; + out: +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + + return ret; + } +@@ -694,14 +697,13 @@ static int + mt7531_ind_c45_phy_write(struct mt7530_priv *priv, int port, int devad, + int regnum, u32 data) + { +- struct mii_bus *bus = priv->bus; + struct mt7530_dummy_poll p; + u32 val, reg; + int ret; + + INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, + !(val & MT7531_PHY_ACS_ST), 20, 100000); +@@ -733,7 +735,7 @@ mt7531_ind_c45_phy_write(struct mt7530_p + } + + out: +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + + return ret; + } +@@ -741,14 +743,13 @@ out: + static int + mt7531_ind_c22_phy_read(struct mt7530_priv *priv, int port, int regnum) + { +- struct mii_bus *bus = priv->bus; + struct mt7530_dummy_poll p; + int ret; + u32 val; + + INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val, + !(val & MT7531_PHY_ACS_ST), 20, 100000); +@@ -771,7 +772,7 @@ mt7531_ind_c22_phy_read(struct mt7530_pr + + ret = val & MT7531_MDIO_RW_DATA_MASK; + out: +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + + return ret; + } +@@ -780,14 +781,13 @@ static int + mt7531_ind_c22_phy_write(struct mt7530_priv *priv, int port, int regnum, + u16 data) + { +- struct mii_bus *bus = priv->bus; + struct mt7530_dummy_poll p; + int ret; + u32 reg; + + INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC); + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg, + !(reg & MT7531_PHY_ACS_ST), 20, 100000); +@@ -809,7 +809,7 @@ mt7531_ind_c22_phy_write(struct mt7530_p + } + + out: +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + + return ret; + } +@@ -1109,7 +1109,6 @@ static int + mt7530_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu) + { + struct mt7530_priv *priv = ds->priv; +- struct mii_bus *bus = priv->bus; + int length; + u32 val; + +@@ -1120,7 +1119,7 @@ mt7530_port_change_mtu(struct dsa_switch + if (!dsa_is_cpu_port(ds, port)) + return 0; + +- mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + + val = mt7530_mii_read(priv, MT7530_GMACCR); + val &= ~MAX_RX_PKT_LEN_MASK; +@@ -1141,7 +1140,7 @@ mt7530_port_change_mtu(struct dsa_switch + + mt7530_mii_write(priv, MT7530_GMACCR, val); + +- mutex_unlock(&bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + + return 0; + } +@@ -1937,10 +1936,10 @@ mt7530_irq_thread_fn(int irq, void *dev_ + u32 val; + int p; + +- mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + val = mt7530_mii_read(priv, MT7530_SYS_INT_STS); + mt7530_mii_write(priv, MT7530_SYS_INT_STS, val); +- mutex_unlock(&priv->bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + + for (p = 0; p < MT7530_NUM_PHYS; p++) { + if (BIT(p) & val) { +@@ -1976,7 +1975,7 @@ mt7530_irq_bus_lock(struct irq_data *d) + { + struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); + +- mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED); ++ mt7530_mutex_lock(priv); + } + + static void +@@ -1985,7 +1984,7 @@ mt7530_irq_bus_sync_unlock(struct irq_da + struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); + + mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable); +- mutex_unlock(&priv->bus->mdio_lock); ++ mt7530_mutex_unlock(priv); + } + + static struct irq_chip mt7530_irq_chip = { diff --git a/target/linux/generic/backport-5.15/790-v6.4-0007-net-dsa-mt7530-move-p5_intf_modes-function-to-mt7530.patch b/target/linux/generic/backport-5.15/790-v6.4-0007-net-dsa-mt7530-move-p5_intf_modes-function-to-mt7530.patch new file mode 100644 index 0000000000..bd7ca33f6e --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0007-net-dsa-mt7530-move-p5_intf_modes-function-to-mt7530.patch @@ -0,0 +1,75 @@ +From 25d15dee34a1a40d5fd71636a205e3211f09fd1d Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:18:28 +0100 +Subject: [PATCH 10/16] net: dsa: mt7530: move p5_intf_modes() function to + mt7530.c + +In preparation of splitting mt7530.c into a driver for MDIO-connected +as well as MDIO-accessed built-in switches on one hand and MMIO-accessed +built-in switches move the p5_inft_modes() function from mt7530.h to +mt7530.c. The function is only needed there and will trigger a compiler +warning about a defined but unused function otherwise when including +mt7530.h in the to-be-introduced bus-specific drivers. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 18 ++++++++++++++++++ + drivers/net/dsa/mt7530.h | 18 ------------------ + 2 files changed, 18 insertions(+), 18 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -950,6 +950,24 @@ mt7530_set_ageing_time(struct dsa_switch + return 0; + } + ++static const char *p5_intf_modes(unsigned int p5_interface) ++{ ++ switch (p5_interface) { ++ case P5_DISABLED: ++ return "DISABLED"; ++ case P5_INTF_SEL_PHY_P0: ++ return "PHY P0"; ++ case P5_INTF_SEL_PHY_P4: ++ return "PHY P4"; ++ case P5_INTF_SEL_GMAC5: ++ return "GMAC5"; ++ case P5_INTF_SEL_GMAC5_SGMII: ++ return "GMAC5_SGMII"; ++ default: ++ return "unknown"; ++ } ++} ++ + static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface) + { + struct mt7530_priv *priv = ds->priv; +--- a/drivers/net/dsa/mt7530.h ++++ b/drivers/net/dsa/mt7530.h +@@ -682,24 +682,6 @@ enum p5_interface_select { + P5_INTF_SEL_GMAC5_SGMII, + }; + +-static const char *p5_intf_modes(unsigned int p5_interface) +-{ +- switch (p5_interface) { +- case P5_DISABLED: +- return "DISABLED"; +- case P5_INTF_SEL_PHY_P0: +- return "PHY P0"; +- case P5_INTF_SEL_PHY_P4: +- return "PHY P4"; +- case P5_INTF_SEL_GMAC5: +- return "GMAC5"; +- case P5_INTF_SEL_GMAC5_SGMII: +- return "GMAC5_SGMII"; +- default: +- return "unknown"; +- } +-} +- + struct mt7530_priv; + + struct mt753x_pcs { diff --git a/target/linux/generic/backport-5.15/790-v6.4-0008-net-dsa-mt7530-introduce-mt7530_probe_common-helper-.patch b/target/linux/generic/backport-5.15/790-v6.4-0008-net-dsa-mt7530-introduce-mt7530_probe_common-helper-.patch new file mode 100644 index 0000000000..34a1bd7372 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0008-net-dsa-mt7530-introduce-mt7530_probe_common-helper-.patch @@ -0,0 +1,155 @@ +From 37c9c0d8d0b2e24f8c9af72ecd4edd31537284d3 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:18:39 +0100 +Subject: [PATCH 11/16] net: dsa: mt7530: introduce mt7530_probe_common helper + function + +Move commonly used parts from mt7530_probe into new mt7530_probe_common +helper function which will be used by both, mt7530_probe and the +to-be-introduced mt7988_probe. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 98 ++++++++++++++++++++++------------------ + 1 file changed, 54 insertions(+), 44 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -3135,44 +3135,21 @@ static const struct of_device_id mt7530_ + MODULE_DEVICE_TABLE(of, mt7530_of_match); + + static int +-mt7530_probe(struct mdio_device *mdiodev) ++mt7530_probe_common(struct mt7530_priv *priv) + { +- static struct regmap_config *regmap_config; +- struct mt7530_priv *priv; +- struct device_node *dn; +- int ret; ++ struct device *dev = priv->dev; + +- dn = mdiodev->dev.of_node; +- +- priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL); +- if (!priv) +- return -ENOMEM; +- +- priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL); ++ priv->ds = devm_kzalloc(dev, sizeof(*priv->ds), GFP_KERNEL); + if (!priv->ds) + return -ENOMEM; + +- priv->ds->dev = &mdiodev->dev; ++ priv->ds->dev = dev; + priv->ds->num_ports = MT7530_NUM_PORTS; + +- /* Use medatek,mcm property to distinguish hardware type that would +- * casues a little bit differences on power-on sequence. +- */ +- priv->mcm = of_property_read_bool(dn, "mediatek,mcm"); +- if (priv->mcm) { +- dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n"); +- +- priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm"); +- if (IS_ERR(priv->rstc)) { +- dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); +- return PTR_ERR(priv->rstc); +- } +- } +- + /* Get the hardware identifier from the devicetree node. + * We will need it for some of the clock and regulator setup. + */ +- priv->info = of_device_get_match_data(&mdiodev->dev); ++ priv->info = of_device_get_match_data(dev); + if (!priv->info) + return -EINVAL; + +@@ -3186,23 +3163,53 @@ mt7530_probe(struct mdio_device *mdiodev + return -EINVAL; + + priv->id = priv->info->id; ++ priv->dev = dev; ++ priv->ds->priv = priv; ++ priv->ds->ops = &mt7530_switch_ops; ++ mutex_init(&priv->reg_mutex); ++ dev_set_drvdata(dev, priv); + +- if (priv->id == ID_MT7530) { +- priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core"); +- if (IS_ERR(priv->core_pwr)) +- return PTR_ERR(priv->core_pwr); ++ return 0; ++} + +- priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io"); +- if (IS_ERR(priv->io_pwr)) +- return PTR_ERR(priv->io_pwr); +- } ++static int ++mt7530_probe(struct mdio_device *mdiodev) ++{ ++ static struct regmap_config *regmap_config; ++ struct mt7530_priv *priv; ++ struct device_node *dn; ++ int ret; ++ ++ dn = mdiodev->dev.of_node; ++ ++ priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; + +- /* Not MCM that indicates switch works as the remote standalone ++ priv->bus = mdiodev->bus; ++ priv->dev = &mdiodev->dev; ++ ++ ret = mt7530_probe_common(priv); ++ if (ret) ++ return ret; ++ ++ /* Use medatek,mcm property to distinguish hardware type that would ++ * cause a little bit differences on power-on sequence. ++ * Not MCM that indicates switch works as the remote standalone + * integrated circuit so the GPIO pin would be used to complete + * the reset, otherwise memory-mapped register accessing used + * through syscon provides in the case of MCM. + */ +- if (!priv->mcm) { ++ priv->mcm = of_property_read_bool(dn, "mediatek,mcm"); ++ if (priv->mcm) { ++ dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n"); ++ ++ priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm"); ++ if (IS_ERR(priv->rstc)) { ++ dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); ++ return PTR_ERR(priv->rstc); ++ } ++ } else { + priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset", + GPIOD_OUT_LOW); + if (IS_ERR(priv->reset)) { +@@ -3211,12 +3218,15 @@ mt7530_probe(struct mdio_device *mdiodev + } + } + +- priv->bus = mdiodev->bus; +- priv->dev = &mdiodev->dev; +- priv->ds->priv = priv; +- priv->ds->ops = &mt7530_switch_ops; +- mutex_init(&priv->reg_mutex); +- dev_set_drvdata(&mdiodev->dev, priv); ++ if (priv->id == ID_MT7530) { ++ priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core"); ++ if (IS_ERR(priv->core_pwr)) ++ return PTR_ERR(priv->core_pwr); ++ ++ priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io"); ++ if (IS_ERR(priv->io_pwr)) ++ return PTR_ERR(priv->io_pwr); ++ } + + regmap_config = devm_kzalloc(&mdiodev->dev, sizeof(*regmap_config), + GFP_KERNEL); diff --git a/target/linux/generic/backport-5.15/790-v6.4-0009-net-dsa-mt7530-introduce-mt7530_remove_common-helper.patch b/target/linux/generic/backport-5.15/790-v6.4-0009-net-dsa-mt7530-introduce-mt7530_remove_common-helper.patch new file mode 100644 index 0000000000..2881365ec7 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0009-net-dsa-mt7530-introduce-mt7530_remove_common-helper.patch @@ -0,0 +1,55 @@ +From 720d736351761574af02ed093658ab60de60576c Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:18:50 +0100 +Subject: [PATCH 12/16] net: dsa: mt7530: introduce mt7530_remove_common helper + function + +Move commonly used parts from mt7530_remove into new +mt7530_remove_common helper function which will be used by both, +mt7530_remove and the to-be-introduced mt7988_remove. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 18 ++++++++++++------ + 1 file changed, 12 insertions(+), 6 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -3253,6 +3253,17 @@ mt7530_probe(struct mdio_device *mdiodev + } + + static void ++mt7530_remove_common(struct mt7530_priv *priv) ++{ ++ if (priv->irq) ++ mt7530_free_irq(priv); ++ ++ dsa_unregister_switch(priv->ds); ++ ++ mutex_destroy(&priv->reg_mutex); ++} ++ ++static void + mt7530_remove(struct mdio_device *mdiodev) + { + struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev); +@@ -3271,16 +3282,11 @@ mt7530_remove(struct mdio_device *mdiode + dev_err(priv->dev, "Failed to disable io pwr: %d\n", + ret); + +- if (priv->irq) +- mt7530_free_irq(priv); +- +- dsa_unregister_switch(priv->ds); ++ mt7530_remove_common(priv); + + for (i = 0; i < 2; ++i) + mtk_pcs_lynxi_destroy(priv->ports[5 + i].sgmii_pcs); + +- mutex_destroy(&priv->reg_mutex); +- + dev_set_drvdata(&mdiodev->dev, NULL); + } + diff --git a/target/linux/generic/backport-5.15/790-v6.4-0010-net-dsa-mt7530-split-off-common-parts-from-mt7531_se.patch b/target/linux/generic/backport-5.15/790-v6.4-0010-net-dsa-mt7530-split-off-common-parts-from-mt7531_se.patch new file mode 100644 index 0000000000..c8e7d93026 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0010-net-dsa-mt7530-split-off-common-parts-from-mt7531_se.patch @@ -0,0 +1,143 @@ +From 7f54cc9772ced2d76ac11832f0ada43798443ac9 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:19:02 +0100 +Subject: [PATCH 13/16] net: dsa: mt7530: split-off common parts from + mt7531_setup + +MT7988 shares a significant part of the setup function with MT7531. +Split-off those parts into a shared function which is going to be used +also by mt7988_setup. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 99 ++++++++++++++++++++++------------------ + 1 file changed, 55 insertions(+), 44 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -2348,11 +2348,64 @@ mt7530_setup(struct dsa_switch *ds) + } + + static int ++mt7531_setup_common(struct dsa_switch *ds) ++{ ++ struct mt7530_priv *priv = ds->priv; ++ struct dsa_port *cpu_dp; ++ int ret, i; ++ ++ /* BPDU to CPU port */ ++ dsa_switch_for_each_cpu_port(cpu_dp, ds) { ++ mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK, ++ BIT(cpu_dp->index)); ++ break; ++ } ++ mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK, ++ MT753X_BPDU_CPU_ONLY); ++ ++ /* Enable and reset MIB counters */ ++ mt7530_mib_reset(ds); ++ ++ for (i = 0; i < MT7530_NUM_PORTS; i++) { ++ /* Disable forwarding by default on all ports */ ++ mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK, ++ PCR_MATRIX_CLR); ++ ++ /* Disable learning by default on all ports */ ++ mt7530_set(priv, MT7530_PSC_P(i), SA_DIS); ++ ++ mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR); ++ ++ if (dsa_is_cpu_port(ds, i)) { ++ ret = mt753x_cpu_port_enable(ds, i); ++ if (ret) ++ return ret; ++ } else { ++ mt7530_port_disable(ds, i); ++ ++ /* Set default PVID to 0 on all user ports */ ++ mt7530_rmw(priv, MT7530_PPBV1_P(i), G0_PORT_VID_MASK, ++ G0_PORT_VID_DEF); ++ } ++ ++ /* Enable consistent egress tag */ ++ mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, ++ PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); ++ } ++ ++ /* Flush the FDB table */ ++ ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL); ++ if (ret < 0) ++ return ret; ++ ++ return 0; ++} ++ ++static int + mt7531_setup(struct dsa_switch *ds) + { + struct mt7530_priv *priv = ds->priv; + struct mt7530_dummy_poll p; +- struct dsa_port *cpu_dp; + u32 val, id; + int ret, i; + +@@ -2426,44 +2479,7 @@ mt7531_setup(struct dsa_switch *ds) + mt7531_ind_c45_phy_write(priv, MT753X_CTRL_PHY_ADDR, MDIO_MMD_VEND2, + CORE_PLL_GROUP4, val); + +- /* BPDU to CPU port */ +- dsa_switch_for_each_cpu_port(cpu_dp, ds) { +- mt7530_rmw(priv, MT7531_CFC, MT7531_CPU_PMAP_MASK, +- BIT(cpu_dp->index)); +- break; +- } +- mt7530_rmw(priv, MT753X_BPC, MT753X_BPDU_PORT_FW_MASK, +- MT753X_BPDU_CPU_ONLY); +- +- /* Enable and reset MIB counters */ +- mt7530_mib_reset(ds); +- +- for (i = 0; i < MT7530_NUM_PORTS; i++) { +- /* Disable forwarding by default on all ports */ +- mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK, +- PCR_MATRIX_CLR); +- +- /* Disable learning by default on all ports */ +- mt7530_set(priv, MT7530_PSC_P(i), SA_DIS); +- +- mt7530_set(priv, MT7531_DBG_CNT(i), MT7531_DIS_CLR); +- +- if (dsa_is_cpu_port(ds, i)) { +- ret = mt753x_cpu_port_enable(ds, i); +- if (ret) +- return ret; +- } else { +- mt7530_port_disable(ds, i); +- +- /* Set default PVID to 0 on all user ports */ +- mt7530_rmw(priv, MT7530_PPBV1_P(i), G0_PORT_VID_MASK, +- G0_PORT_VID_DEF); +- } +- +- /* Enable consistent egress tag */ +- mt7530_rmw(priv, MT7530_PVC_P(i), PVC_EG_TAG_MASK, +- PVC_EG_TAG(MT7530_VLAN_EG_CONSISTENT)); +- } ++ mt7531_setup_common(ds); + + /* Setup VLAN ID 0 for VLAN-unaware bridges */ + ret = mt7530_setup_vlan0(priv); +@@ -2473,11 +2489,6 @@ mt7531_setup(struct dsa_switch *ds) + ds->assisted_learning_on_cpu_port = true; + ds->mtu_enforcement_ingress = true; + +- /* Flush the FDB table */ +- ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL); +- if (ret < 0) +- return ret; +- + return 0; + } + diff --git a/target/linux/generic/backport-5.15/790-v6.4-0011-net-dsa-mt7530-introduce-separate-MDIO-driver.patch b/target/linux/generic/backport-5.15/790-v6.4-0011-net-dsa-mt7530-introduce-separate-MDIO-driver.patch new file mode 100644 index 0000000000..96afa041aa --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0011-net-dsa-mt7530-introduce-separate-MDIO-driver.patch @@ -0,0 +1,692 @@ +From cb675afcddbbeb2bfa6596e3bc236bc026cd425f Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:19:13 +0100 +Subject: [PATCH 14/16] net: dsa: mt7530: introduce separate MDIO driver + +Split MT7530 switch driver into a common part and a part specific +for MDIO connected switches and multi-chip modules. +Move MDIO-specific functions to newly introduced mt7530-mdio.c while +keeping the common parts in mt7530.c. +Introduce new Kconfig symbol CONFIG_NET_DSA_MT7530_MDIO which is +implied by CONFIG_NET_DSA_MT7530. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + MAINTAINERS | 1 + + drivers/net/dsa/Kconfig | 15 +- + drivers/net/dsa/Makefile | 1 + + drivers/net/dsa/mt7530-mdio.c | 271 ++++++++++++++++++++++++++++++++++ + drivers/net/dsa/mt7530.c | 264 +-------------------------------- + drivers/net/dsa/mt7530.h | 6 + + 6 files changed, 300 insertions(+), 258 deletions(-) + create mode 100644 drivers/net/dsa/mt7530-mdio.c + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -11901,6 +11901,7 @@ M: Landen Chao + L: netdev@vger.kernel.org + S: Maintained ++F: drivers/net/dsa/mt7530-mdio.c + F: drivers/net/dsa/mt7530.* + F: net/dsa/tag_mtk.c + +--- a/drivers/net/dsa/Kconfig ++++ b/drivers/net/dsa/Kconfig +@@ -37,10 +37,22 @@ config NET_DSA_MT7530 + tristate "MediaTek MT753x and MT7621 Ethernet switch support" + select NET_DSA_TAG_MTK + select MEDIATEK_GE_PHY ++ imply NET_DSA_MT7530_MDIO ++ help ++ This enables support for the MediaTek MT7530 and MT7531 Ethernet ++ switch chips. Multi-chip module MT7530 in MT7621AT, MT7621DAT, ++ MT7621ST and MT7623AI SoCs, and built-in switch in MT7988 SoC are ++ supported as well. ++ ++config NET_DSA_MT7530_MDIO ++ tristate "MediaTek MT7530 MDIO interface driver" ++ depends on NET_DSA_MT7530 + select PCS_MTK_LYNXI + help +- This enables support for the MediaTek MT7530, MT7531, and MT7621 +- Ethernet switch chips. ++ This enables support for the MediaTek MT7530 and MT7531 switch ++ chips which are connected via MDIO, as well as multi-chip ++ module MT7530 which can be found in the MT7621AT, MT7621DAT, ++ MT7621ST and MT7623AI SoCs. + + config NET_DSA_MV88E6060 + tristate "Marvell 88E6060 ethernet switch chip support" +--- a/drivers/net/dsa/Makefile ++++ b/drivers/net/dsa/Makefile +@@ -7,6 +7,7 @@ obj-$(CONFIG_FIXED_PHY) += dsa_loop_bdi + endif + obj-$(CONFIG_NET_DSA_LANTIQ_GSWIP) += lantiq_gswip.o + obj-$(CONFIG_NET_DSA_MT7530) += mt7530.o ++obj-$(CONFIG_NET_DSA_MT7530_MDIO) += mt7530-mdio.o + obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o + obj-$(CONFIG_NET_DSA_REALTEK_SMI) += realtek-smi.o + realtek-smi-objs := realtek-smi-core.o rtl8366.o rtl8366rb.o +--- /dev/null ++++ b/drivers/net/dsa/mt7530-mdio.c +@@ -0,0 +1,271 @@ ++// SPDX-License-Identifier: GPL-2.0-only ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "mt7530.h" ++ ++static int ++mt7530_regmap_write(void *context, unsigned int reg, unsigned int val) ++{ ++ struct mii_bus *bus = context; ++ u16 page, r, lo, hi; ++ int ret; ++ ++ page = (reg >> 6) & 0x3ff; ++ r = (reg >> 2) & 0xf; ++ lo = val & 0xffff; ++ hi = val >> 16; ++ ++ /* MT7530 uses 31 as the pseudo port */ ++ ret = bus->write(bus, 0x1f, 0x1f, page); ++ if (ret < 0) ++ return ret; ++ ++ ret = bus->write(bus, 0x1f, r, lo); ++ if (ret < 0) ++ return ret; ++ ++ ret = bus->write(bus, 0x1f, 0x10, hi); ++ return ret; ++} ++ ++static int ++mt7530_regmap_read(void *context, unsigned int reg, unsigned int *val) ++{ ++ struct mii_bus *bus = context; ++ u16 page, r, lo, hi; ++ int ret; ++ ++ page = (reg >> 6) & 0x3ff; ++ r = (reg >> 2) & 0xf; ++ ++ /* MT7530 uses 31 as the pseudo port */ ++ ret = bus->write(bus, 0x1f, 0x1f, page); ++ if (ret < 0) ++ return ret; ++ ++ lo = bus->read(bus, 0x1f, r); ++ hi = bus->read(bus, 0x1f, 0x10); ++ ++ *val = (hi << 16) | (lo & 0xffff); ++ ++ return 0; ++} ++ ++static void ++mt7530_mdio_regmap_lock(void *mdio_lock) ++{ ++ mutex_lock_nested(mdio_lock, MDIO_MUTEX_NESTED); ++} ++ ++static void ++mt7530_mdio_regmap_unlock(void *mdio_lock) ++{ ++ mutex_unlock(mdio_lock); ++} ++ ++static const struct regmap_bus mt7530_regmap_bus = { ++ .reg_write = mt7530_regmap_write, ++ .reg_read = mt7530_regmap_read, ++}; ++ ++static int ++mt7531_create_sgmii(struct mt7530_priv *priv) ++{ ++ struct regmap_config *mt7531_pcs_config[2]; ++ struct phylink_pcs *pcs; ++ struct regmap *regmap; ++ int i, ret = 0; ++ ++ for (i = 0; i < 2; i++) { ++ mt7531_pcs_config[i] = devm_kzalloc(priv->dev, ++ sizeof(struct regmap_config), ++ GFP_KERNEL); ++ if (!mt7531_pcs_config[i]) { ++ ret = -ENOMEM; ++ break; ++ } ++ ++ mt7531_pcs_config[i]->name = i ? "port6" : "port5"; ++ mt7531_pcs_config[i]->reg_bits = 16; ++ mt7531_pcs_config[i]->val_bits = 32; ++ mt7531_pcs_config[i]->reg_stride = 4; ++ mt7531_pcs_config[i]->reg_base = MT7531_SGMII_REG_BASE(5 + i); ++ mt7531_pcs_config[i]->max_register = 0x17c; ++ mt7531_pcs_config[i]->lock = mt7530_mdio_regmap_lock; ++ mt7531_pcs_config[i]->unlock = mt7530_mdio_regmap_unlock; ++ mt7531_pcs_config[i]->lock_arg = &priv->bus->mdio_lock; ++ ++ regmap = devm_regmap_init(priv->dev, ++ &mt7530_regmap_bus, priv->bus, ++ mt7531_pcs_config[i]); ++ if (IS_ERR(regmap)) { ++ ret = PTR_ERR(regmap); ++ break; ++ } ++ pcs = mtk_pcs_lynxi_create(priv->dev, regmap, ++ MT7531_PHYA_CTRL_SIGNAL3, 0); ++ if (!pcs) { ++ ret = -ENXIO; ++ break; ++ } ++ priv->ports[5 + i].sgmii_pcs = pcs; ++ } ++ ++ if (ret && i) ++ mtk_pcs_lynxi_destroy(priv->ports[5].sgmii_pcs); ++ ++ return ret; ++} ++ ++static const struct of_device_id mt7530_of_match[] = { ++ { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], }, ++ { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], }, ++ { .compatible = "mediatek,mt7531", .data = &mt753x_table[ID_MT7531], }, ++ { /* sentinel */ }, ++}; ++MODULE_DEVICE_TABLE(of, mt7530_of_match); ++ ++static int ++mt7530_probe(struct mdio_device *mdiodev) ++{ ++ static struct regmap_config *regmap_config; ++ struct mt7530_priv *priv; ++ struct device_node *dn; ++ int ret; ++ ++ dn = mdiodev->dev.of_node; ++ ++ priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; ++ ++ priv->bus = mdiodev->bus; ++ priv->dev = &mdiodev->dev; ++ ++ ret = mt7530_probe_common(priv); ++ if (ret) ++ return ret; ++ ++ /* Use medatek,mcm property to distinguish hardware type that would ++ * cause a little bit differences on power-on sequence. ++ * Not MCM that indicates switch works as the remote standalone ++ * integrated circuit so the GPIO pin would be used to complete ++ * the reset, otherwise memory-mapped register accessing used ++ * through syscon provides in the case of MCM. ++ */ ++ priv->mcm = of_property_read_bool(dn, "mediatek,mcm"); ++ if (priv->mcm) { ++ dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n"); ++ ++ priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm"); ++ if (IS_ERR(priv->rstc)) { ++ dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); ++ return PTR_ERR(priv->rstc); ++ } ++ } else { ++ priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset", ++ GPIOD_OUT_LOW); ++ if (IS_ERR(priv->reset)) { ++ dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); ++ return PTR_ERR(priv->reset); ++ } ++ } ++ ++ if (priv->id == ID_MT7530) { ++ priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core"); ++ if (IS_ERR(priv->core_pwr)) ++ return PTR_ERR(priv->core_pwr); ++ ++ priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io"); ++ if (IS_ERR(priv->io_pwr)) ++ return PTR_ERR(priv->io_pwr); ++ } ++ ++ regmap_config = devm_kzalloc(&mdiodev->dev, sizeof(*regmap_config), ++ GFP_KERNEL); ++ if (!regmap_config) ++ return -ENOMEM; ++ ++ regmap_config->reg_bits = 16; ++ regmap_config->val_bits = 32; ++ regmap_config->reg_stride = 4; ++ regmap_config->max_register = MT7530_CREV; ++ regmap_config->disable_locking = true; ++ priv->regmap = devm_regmap_init(priv->dev, &mt7530_regmap_bus, ++ priv->bus, regmap_config); ++ if (IS_ERR(priv->regmap)) ++ return PTR_ERR(priv->regmap); ++ ++ if (priv->id == ID_MT7531) { ++ ret = mt7531_create_sgmii(priv); ++ if (ret) ++ return ret; ++ } ++ ++ return dsa_register_switch(priv->ds); ++} ++ ++static void ++mt7530_remove(struct mdio_device *mdiodev) ++{ ++ struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev); ++ int ret = 0, i; ++ ++ if (!priv) ++ return; ++ ++ ret = regulator_disable(priv->core_pwr); ++ if (ret < 0) ++ dev_err(priv->dev, ++ "Failed to disable core power: %d\n", ret); ++ ++ ret = regulator_disable(priv->io_pwr); ++ if (ret < 0) ++ dev_err(priv->dev, "Failed to disable io pwr: %d\n", ++ ret); ++ ++ mt7530_remove_common(priv); ++ ++ for (i = 0; i < 2; ++i) ++ mtk_pcs_lynxi_destroy(priv->ports[5 + i].sgmii_pcs); ++} ++ ++static void mt7530_shutdown(struct mdio_device *mdiodev) ++{ ++ struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev); ++ ++ if (!priv) ++ return; ++ ++ dsa_switch_shutdown(priv->ds); ++ ++ dev_set_drvdata(&mdiodev->dev, NULL); ++} ++ ++static struct mdio_driver mt7530_mdio_driver = { ++ .probe = mt7530_probe, ++ .remove = mt7530_remove, ++ .shutdown = mt7530_shutdown, ++ .mdiodrv.driver = { ++ .name = "mt7530-mdio", ++ .of_match_table = mt7530_of_match, ++ }, ++}; ++ ++mdio_module_driver(mt7530_mdio_driver); ++ ++MODULE_AUTHOR("Sean Wang "); ++MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch (MDIO)"); ++MODULE_LICENSE("GPL"); +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -14,7 +14,6 @@ + #include + #include + #include +-#include + #include + #include + #include +@@ -192,31 +191,6 @@ core_clear(struct mt7530_priv *priv, u32 + } + + static int +-mt7530_regmap_write(void *context, unsigned int reg, unsigned int val) +-{ +- struct mii_bus *bus = context; +- u16 page, r, lo, hi; +- int ret; +- +- page = (reg >> 6) & 0x3ff; +- r = (reg >> 2) & 0xf; +- lo = val & 0xffff; +- hi = val >> 16; +- +- /* MT7530 uses 31 as the pseudo port */ +- ret = bus->write(bus, 0x1f, 0x1f, page); +- if (ret < 0) +- return ret; +- +- ret = bus->write(bus, 0x1f, r, lo); +- if (ret < 0) +- return ret; +- +- ret = bus->write(bus, 0x1f, 0x10, hi); +- return ret; +-} +- +-static int + mt7530_mii_write(struct mt7530_priv *priv, u32 reg, u32 val) + { + int ret; +@@ -230,29 +204,6 @@ mt7530_mii_write(struct mt7530_priv *pri + return ret; + } + +-static int +-mt7530_regmap_read(void *context, unsigned int reg, unsigned int *val) +-{ +- struct mii_bus *bus = context; +- u16 page, r, lo, hi; +- int ret; +- +- page = (reg >> 6) & 0x3ff; +- r = (reg >> 2) & 0xf; +- +- /* MT7530 uses 31 as the pseudo port */ +- ret = bus->write(bus, 0x1f, 0x1f, page); +- if (ret < 0) +- return ret; +- +- lo = bus->read(bus, 0x1f, r); +- hi = bus->read(bus, 0x1f, 0x10); +- +- *val = (hi << 16) | (lo & 0xffff); +- +- return 0; +-} +- + static u32 + mt7530_mii_read(struct mt7530_priv *priv, u32 reg) + { +@@ -2944,72 +2895,6 @@ static const struct phylink_pcs_ops mt75 + .pcs_an_restart = mt7530_pcs_an_restart, + }; + +-static void +-mt7530_mdio_regmap_lock(void *mdio_lock) +-{ +- mutex_lock_nested(mdio_lock, MDIO_MUTEX_NESTED); +-} +- +-static void +-mt7530_mdio_regmap_unlock(void *mdio_lock) +-{ +- mutex_unlock(mdio_lock); +-} +- +-static const struct regmap_bus mt7530_regmap_bus = { +- .reg_write = mt7530_regmap_write, +- .reg_read = mt7530_regmap_read, +-}; +- +-static int +-mt7531_create_sgmii(struct mt7530_priv *priv) +-{ +- struct regmap_config *mt7531_pcs_config[2]; +- struct phylink_pcs *pcs; +- struct regmap *regmap; +- int i, ret = 0; +- +- for (i = 0; i < 2; i++) { +- mt7531_pcs_config[i] = devm_kzalloc(priv->dev, +- sizeof(struct regmap_config), +- GFP_KERNEL); +- if (!mt7531_pcs_config[i]) { +- ret = -ENOMEM; +- break; +- } +- +- mt7531_pcs_config[i]->name = i ? "port6" : "port5"; +- mt7531_pcs_config[i]->reg_bits = 16; +- mt7531_pcs_config[i]->val_bits = 32; +- mt7531_pcs_config[i]->reg_stride = 4; +- mt7531_pcs_config[i]->reg_base = MT7531_SGMII_REG_BASE(5 + i); +- mt7531_pcs_config[i]->max_register = 0x17c; +- mt7531_pcs_config[i]->lock = mt7530_mdio_regmap_lock; +- mt7531_pcs_config[i]->unlock = mt7530_mdio_regmap_unlock; +- mt7531_pcs_config[i]->lock_arg = &priv->bus->mdio_lock; +- +- regmap = devm_regmap_init(priv->dev, +- &mt7530_regmap_bus, priv->bus, +- mt7531_pcs_config[i]); +- if (IS_ERR(regmap)) { +- ret = PTR_ERR(regmap); +- break; +- } +- pcs = mtk_pcs_lynxi_create(priv->dev, regmap, +- MT7531_PHYA_CTRL_SIGNAL3, 0); +- if (!pcs) { +- ret = -ENXIO; +- break; +- } +- priv->ports[5 + i].sgmii_pcs = pcs; +- } +- +- if (ret && i) +- mtk_pcs_lynxi_destroy(priv->ports[5].sgmii_pcs); +- +- return ret; +-} +- + static int + mt753x_setup(struct dsa_switch *ds) + { +@@ -3068,7 +2953,7 @@ static int mt753x_set_mac_eee(struct dsa + return 0; + } + +-static const struct dsa_switch_ops mt7530_switch_ops = { ++const struct dsa_switch_ops mt7530_switch_ops = { + .get_tag_protocol = mtk_get_tag_protocol, + .setup = mt753x_setup, + .get_strings = mt7530_get_strings, +@@ -3102,8 +2987,9 @@ static const struct dsa_switch_ops mt753 + .get_mac_eee = mt753x_get_mac_eee, + .set_mac_eee = mt753x_set_mac_eee, + }; ++EXPORT_SYMBOL_GPL(mt7530_switch_ops); + +-static const struct mt753x_info mt753x_table[] = { ++const struct mt753x_info mt753x_table[] = { + [ID_MT7621] = { + .id = ID_MT7621, + .pcs_ops = &mt7530_pcs_ops, +@@ -3136,16 +3022,9 @@ static const struct mt753x_info mt753x_t + .mac_port_config = mt7531_mac_config, + }, + }; ++EXPORT_SYMBOL_GPL(mt753x_table); + +-static const struct of_device_id mt7530_of_match[] = { +- { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], }, +- { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], }, +- { .compatible = "mediatek,mt7531", .data = &mt753x_table[ID_MT7531], }, +- { /* sentinel */ }, +-}; +-MODULE_DEVICE_TABLE(of, mt7530_of_match); +- +-static int ++int + mt7530_probe_common(struct mt7530_priv *priv) + { + struct device *dev = priv->dev; +@@ -3182,88 +3061,9 @@ mt7530_probe_common(struct mt7530_priv * + + return 0; + } ++EXPORT_SYMBOL_GPL(mt7530_probe_common); + +-static int +-mt7530_probe(struct mdio_device *mdiodev) +-{ +- static struct regmap_config *regmap_config; +- struct mt7530_priv *priv; +- struct device_node *dn; +- int ret; +- +- dn = mdiodev->dev.of_node; +- +- priv = devm_kzalloc(&mdiodev->dev, sizeof(*priv), GFP_KERNEL); +- if (!priv) +- return -ENOMEM; +- +- priv->bus = mdiodev->bus; +- priv->dev = &mdiodev->dev; +- +- ret = mt7530_probe_common(priv); +- if (ret) +- return ret; +- +- /* Use medatek,mcm property to distinguish hardware type that would +- * cause a little bit differences on power-on sequence. +- * Not MCM that indicates switch works as the remote standalone +- * integrated circuit so the GPIO pin would be used to complete +- * the reset, otherwise memory-mapped register accessing used +- * through syscon provides in the case of MCM. +- */ +- priv->mcm = of_property_read_bool(dn, "mediatek,mcm"); +- if (priv->mcm) { +- dev_info(&mdiodev->dev, "MT7530 adapts as multi-chip module\n"); +- +- priv->rstc = devm_reset_control_get(&mdiodev->dev, "mcm"); +- if (IS_ERR(priv->rstc)) { +- dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); +- return PTR_ERR(priv->rstc); +- } +- } else { +- priv->reset = devm_gpiod_get_optional(&mdiodev->dev, "reset", +- GPIOD_OUT_LOW); +- if (IS_ERR(priv->reset)) { +- dev_err(&mdiodev->dev, "Couldn't get our reset line\n"); +- return PTR_ERR(priv->reset); +- } +- } +- +- if (priv->id == ID_MT7530) { +- priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core"); +- if (IS_ERR(priv->core_pwr)) +- return PTR_ERR(priv->core_pwr); +- +- priv->io_pwr = devm_regulator_get(&mdiodev->dev, "io"); +- if (IS_ERR(priv->io_pwr)) +- return PTR_ERR(priv->io_pwr); +- } +- +- regmap_config = devm_kzalloc(&mdiodev->dev, sizeof(*regmap_config), +- GFP_KERNEL); +- if (!regmap_config) +- return -ENOMEM; +- +- regmap_config->reg_bits = 16; +- regmap_config->val_bits = 32; +- regmap_config->reg_stride = 4; +- regmap_config->max_register = MT7530_CREV; +- regmap_config->disable_locking = true; +- priv->regmap = devm_regmap_init(priv->dev, &mt7530_regmap_bus, +- priv->bus, regmap_config); +- if (IS_ERR(priv->regmap)) +- return PTR_ERR(priv->regmap); +- +- if (priv->id == ID_MT7531) { +- ret = mt7531_create_sgmii(priv); +- if (ret) +- return ret; +- } +- +- return dsa_register_switch(priv->ds); +-} +- +-static void ++void + mt7530_remove_common(struct mt7530_priv *priv) + { + if (priv->irq) +@@ -3274,57 +3074,6 @@ mt7530_remove_common(struct mt7530_priv + mutex_destroy(&priv->reg_mutex); + } + +-static void +-mt7530_remove(struct mdio_device *mdiodev) +-{ +- struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev); +- int ret = 0, i; +- +- if (!priv) +- return; +- +- ret = regulator_disable(priv->core_pwr); +- if (ret < 0) +- dev_err(priv->dev, +- "Failed to disable core power: %d\n", ret); +- +- ret = regulator_disable(priv->io_pwr); +- if (ret < 0) +- dev_err(priv->dev, "Failed to disable io pwr: %d\n", +- ret); +- +- mt7530_remove_common(priv); +- +- for (i = 0; i < 2; ++i) +- mtk_pcs_lynxi_destroy(priv->ports[5 + i].sgmii_pcs); +- +- dev_set_drvdata(&mdiodev->dev, NULL); +-} +- +-static void mt7530_shutdown(struct mdio_device *mdiodev) +-{ +- struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev); +- +- if (!priv) +- return; +- +- dsa_switch_shutdown(priv->ds); +- +- dev_set_drvdata(&mdiodev->dev, NULL); +-} +- +-static struct mdio_driver mt7530_mdio_driver = { +- .probe = mt7530_probe, +- .remove = mt7530_remove, +- .shutdown = mt7530_shutdown, +- .mdiodrv.driver = { +- .name = "mt7530", +- .of_match_table = mt7530_of_match, +- }, +-}; +- +-mdio_module_driver(mt7530_mdio_driver); +- + MODULE_AUTHOR("Sean Wang "); + MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch"); + MODULE_LICENSE("GPL"); +--- a/drivers/net/dsa/mt7530.h ++++ b/drivers/net/dsa/mt7530.h +@@ -807,4 +807,10 @@ static inline void INIT_MT7530_DUMMY_POL + p->reg = reg; + } + ++int mt7530_probe_common(struct mt7530_priv *priv); ++void mt7530_remove_common(struct mt7530_priv *priv); ++ ++extern const struct dsa_switch_ops mt7530_switch_ops; ++extern const struct mt753x_info mt753x_table[]; ++ + #endif /* __MT7530_H */ diff --git a/target/linux/generic/backport-5.15/790-v6.4-0012-net-dsa-mt7530-skip-locking-if-MDIO-bus-isn-t-presen.patch b/target/linux/generic/backport-5.15/790-v6.4-0012-net-dsa-mt7530-skip-locking-if-MDIO-bus-isn-t-presen.patch new file mode 100644 index 0000000000..95b7cc6afe --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0012-net-dsa-mt7530-skip-locking-if-MDIO-bus-isn-t-presen.patch @@ -0,0 +1,47 @@ +From 54d4147a121cec5004a673a58572da346e4458f8 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:19:28 +0100 +Subject: [PATCH 15/16] net: dsa: mt7530: skip locking if MDIO bus isn't + present + +As MT7530 and MT7531 internally use 32-bit wide registers, each access +to any register of the switch requires several operations on the MDIO +bus. Hence if there is congruent access, e.g. due to PCS or PHY +polling, this can mess up and interfere with another ongoing register +access sequence. + +However, the MDIO bus mutex is only relevant for MDIO-connected +switches. Prepare switches which have there registers directly mapped +into the SoCs register space via MMIO which do not require such +locking. There we can simply use regmap's default locking mechanism. + +Hence guard mutex operations to only be performed in case of MDIO +connected switches. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/dsa/mt7530.c | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -144,13 +144,15 @@ err: + static void + mt7530_mutex_lock(struct mt7530_priv *priv) + { +- mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED); ++ if (priv->bus) ++ mutex_lock_nested(&priv->bus->mdio_lock, MDIO_MUTEX_NESTED); + } + + static void + mt7530_mutex_unlock(struct mt7530_priv *priv) + { +- mutex_unlock(&priv->bus->mdio_lock); ++ if (priv->bus) ++ mutex_unlock(&priv->bus->mdio_lock); + } + + static void diff --git a/target/linux/generic/backport-5.15/790-v6.4-0013-net-dsa-mt7530-introduce-driver-for-MT7988-built-in-.patch b/target/linux/generic/backport-5.15/790-v6.4-0013-net-dsa-mt7530-introduce-driver-for-MT7988-built-in-.patch new file mode 100644 index 0000000000..8210aae27c --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0013-net-dsa-mt7530-introduce-driver-for-MT7988-built-in-.patch @@ -0,0 +1,421 @@ +From 110c18bfed41421edd677935dd33be5e6507ba92 Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Mon, 3 Apr 2023 02:19:40 +0100 +Subject: [PATCH 16/16] net: dsa: mt7530: introduce driver for MT7988 built-in + switch + +Add driver for the built-in Gigabit Ethernet switch which can be found +in the MediaTek MT7988 SoC. + +The switch shares most of its design with MT7530 and MT7531, but has +it's registers mapped into the SoCs register space rather than being +connected externally or internally via MDIO. + +Introduce a new platform driver to support that. + +Signed-off-by: Daniel Golle +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + MAINTAINERS | 2 + + drivers/net/dsa/Kconfig | 12 +++ + drivers/net/dsa/Makefile | 1 + + drivers/net/dsa/mt7530-mmio.c | 101 +++++++++++++++++++++++++ + drivers/net/dsa/mt7530.c | 137 +++++++++++++++++++++++++++++++++- + drivers/net/dsa/mt7530.h | 12 +-- + 6 files changed, 255 insertions(+), 10 deletions(-) + create mode 100644 drivers/net/dsa/mt7530-mmio.c + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -11899,9 +11899,11 @@ MEDIATEK SWITCH DRIVER + M: Sean Wang + M: Landen Chao + M: DENG Qingfang ++M: Daniel Golle + L: netdev@vger.kernel.org + S: Maintained + F: drivers/net/dsa/mt7530-mdio.c ++F: drivers/net/dsa/mt7530-mmio.c + F: drivers/net/dsa/mt7530.* + F: net/dsa/tag_mtk.c + +--- a/drivers/net/dsa/Kconfig ++++ b/drivers/net/dsa/Kconfig +@@ -38,6 +38,7 @@ config NET_DSA_MT7530 + select NET_DSA_TAG_MTK + select MEDIATEK_GE_PHY + imply NET_DSA_MT7530_MDIO ++ imply NET_DSA_MT7530_MMIO + help + This enables support for the MediaTek MT7530 and MT7531 Ethernet + switch chips. Multi-chip module MT7530 in MT7621AT, MT7621DAT, +@@ -54,6 +55,17 @@ config NET_DSA_MT7530_MDIO + module MT7530 which can be found in the MT7621AT, MT7621DAT, + MT7621ST and MT7623AI SoCs. + ++config NET_DSA_MT7530_MMIO ++ tristate "MediaTek MT7530 MMIO interface driver" ++ depends on NET_DSA_MT7530 ++ depends on HAS_IOMEM ++ help ++ This enables support for the built-in Ethernet switch found ++ in the MediaTek MT7988 SoC. ++ The switch is a similar design as MT7531, but the switch registers ++ are directly mapped into the SoCs register space rather than being ++ accessible via MDIO. ++ + config NET_DSA_MV88E6060 + tristate "Marvell 88E6060 ethernet switch chip support" + select NET_DSA_TAG_TRAILER +--- a/drivers/net/dsa/Makefile ++++ b/drivers/net/dsa/Makefile +@@ -8,6 +8,7 @@ endif + obj-$(CONFIG_NET_DSA_LANTIQ_GSWIP) += lantiq_gswip.o + obj-$(CONFIG_NET_DSA_MT7530) += mt7530.o + obj-$(CONFIG_NET_DSA_MT7530_MDIO) += mt7530-mdio.o ++obj-$(CONFIG_NET_DSA_MT7530_MMIO) += mt7530-mmio.o + obj-$(CONFIG_NET_DSA_MV88E6060) += mv88e6060.o + obj-$(CONFIG_NET_DSA_REALTEK_SMI) += realtek-smi.o + realtek-smi-objs := realtek-smi-core.o rtl8366.o rtl8366rb.o +--- /dev/null ++++ b/drivers/net/dsa/mt7530-mmio.c +@@ -0,0 +1,101 @@ ++// SPDX-License-Identifier: GPL-2.0-only ++ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "mt7530.h" ++ ++static const struct of_device_id mt7988_of_match[] = { ++ { .compatible = "mediatek,mt7988-switch", .data = &mt753x_table[ID_MT7988], }, ++ { /* sentinel */ }, ++}; ++MODULE_DEVICE_TABLE(of, mt7988_of_match); ++ ++static int ++mt7988_probe(struct platform_device *pdev) ++{ ++ static struct regmap_config *sw_regmap_config; ++ struct mt7530_priv *priv; ++ void __iomem *base_addr; ++ int ret; ++ ++ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); ++ if (!priv) ++ return -ENOMEM; ++ ++ priv->bus = NULL; ++ priv->dev = &pdev->dev; ++ ++ ret = mt7530_probe_common(priv); ++ if (ret) ++ return ret; ++ ++ priv->rstc = devm_reset_control_get(&pdev->dev, NULL); ++ if (IS_ERR(priv->rstc)) { ++ dev_err(&pdev->dev, "Couldn't get our reset line\n"); ++ return PTR_ERR(priv->rstc); ++ } ++ ++ base_addr = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(base_addr)) { ++ dev_err(&pdev->dev, "cannot request I/O memory space\n"); ++ return -ENXIO; ++ } ++ ++ sw_regmap_config = devm_kzalloc(&pdev->dev, sizeof(*sw_regmap_config), GFP_KERNEL); ++ if (!sw_regmap_config) ++ return -ENOMEM; ++ ++ sw_regmap_config->name = "switch"; ++ sw_regmap_config->reg_bits = 16; ++ sw_regmap_config->val_bits = 32; ++ sw_regmap_config->reg_stride = 4; ++ sw_regmap_config->max_register = MT7530_CREV; ++ priv->regmap = devm_regmap_init_mmio(&pdev->dev, base_addr, sw_regmap_config); ++ if (IS_ERR(priv->regmap)) ++ return PTR_ERR(priv->regmap); ++ ++ return dsa_register_switch(priv->ds); ++} ++ ++static int ++mt7988_remove(struct platform_device *pdev) ++{ ++ struct mt7530_priv *priv = platform_get_drvdata(pdev); ++ ++ if (priv) ++ mt7530_remove_common(priv); ++ ++ return 0; ++} ++ ++static void mt7988_shutdown(struct platform_device *pdev) ++{ ++ struct mt7530_priv *priv = platform_get_drvdata(pdev); ++ ++ if (!priv) ++ return; ++ ++ dsa_switch_shutdown(priv->ds); ++ ++ dev_set_drvdata(&pdev->dev, NULL); ++} ++ ++static struct platform_driver mt7988_platform_driver = { ++ .probe = mt7988_probe, ++ .remove = mt7988_remove, ++ .shutdown = mt7988_shutdown, ++ .driver = { ++ .name = "mt7530-mmio", ++ .of_match_table = mt7988_of_match, ++ }, ++}; ++module_platform_driver(mt7988_platform_driver); ++ ++MODULE_AUTHOR("Daniel Golle "); ++MODULE_DESCRIPTION("Driver for Mediatek MT7530 Switch (MMIO)"); ++MODULE_LICENSE("GPL"); +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -1984,6 +1984,47 @@ static const struct irq_domain_ops mt753 + }; + + static void ++mt7988_irq_mask(struct irq_data *d) ++{ ++ struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); ++ ++ priv->irq_enable &= ~BIT(d->hwirq); ++ mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable); ++} ++ ++static void ++mt7988_irq_unmask(struct irq_data *d) ++{ ++ struct mt7530_priv *priv = irq_data_get_irq_chip_data(d); ++ ++ priv->irq_enable |= BIT(d->hwirq); ++ mt7530_mii_write(priv, MT7530_SYS_INT_EN, priv->irq_enable); ++} ++ ++static struct irq_chip mt7988_irq_chip = { ++ .name = KBUILD_MODNAME, ++ .irq_mask = mt7988_irq_mask, ++ .irq_unmask = mt7988_irq_unmask, ++}; ++ ++static int ++mt7988_irq_map(struct irq_domain *domain, unsigned int irq, ++ irq_hw_number_t hwirq) ++{ ++ irq_set_chip_data(irq, domain->host_data); ++ irq_set_chip_and_handler(irq, &mt7988_irq_chip, handle_simple_irq); ++ irq_set_nested_thread(irq, true); ++ irq_set_noprobe(irq); ++ ++ return 0; ++} ++ ++static const struct irq_domain_ops mt7988_irq_domain_ops = { ++ .map = mt7988_irq_map, ++ .xlate = irq_domain_xlate_onecell, ++}; ++ ++static void + mt7530_setup_mdio_irq(struct mt7530_priv *priv) + { + struct dsa_switch *ds = priv->ds; +@@ -2017,8 +2058,15 @@ mt7530_setup_irq(struct mt7530_priv *pri + return priv->irq ? : -EINVAL; + } + +- priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS, +- &mt7530_irq_domain_ops, priv); ++ if (priv->id == ID_MT7988) ++ priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS, ++ &mt7988_irq_domain_ops, ++ priv); ++ else ++ priv->irq_domain = irq_domain_add_linear(np, MT7530_NUM_PHYS, ++ &mt7530_irq_domain_ops, ++ priv); ++ + if (!priv->irq_domain) { + dev_err(dev, "failed to create IRQ domain\n"); + return -ENOMEM; +@@ -2507,6 +2555,25 @@ static void mt7531_mac_port_get_caps(str + } + } + ++static void mt7988_mac_port_get_caps(struct dsa_switch *ds, int port, ++ struct phylink_config *config) ++{ ++ phy_interface_zero(config->supported_interfaces); ++ ++ switch (port) { ++ case 0 ... 4: /* Internal phy */ ++ __set_bit(PHY_INTERFACE_MODE_INTERNAL, ++ config->supported_interfaces); ++ break; ++ ++ case 6: ++ __set_bit(PHY_INTERFACE_MODE_INTERNAL, ++ config->supported_interfaces); ++ config->mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | ++ MAC_10000FD; ++ } ++} ++ + static int + mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state) + { +@@ -2583,6 +2650,17 @@ static bool mt753x_is_mac_port(u32 port) + } + + static int ++mt7988_mac_config(struct dsa_switch *ds, int port, unsigned int mode, ++ phy_interface_t interface) ++{ ++ if (dsa_is_cpu_port(ds, port) && ++ interface == PHY_INTERFACE_MODE_INTERNAL) ++ return 0; ++ ++ return -EINVAL; ++} ++ ++static int + mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode, + phy_interface_t interface) + { +@@ -2652,7 +2730,8 @@ mt753x_phylink_mac_config(struct dsa_swi + + switch (port) { + case 0 ... 4: /* Internal phy */ +- if (state->interface != PHY_INTERFACE_MODE_GMII) ++ if (state->interface != PHY_INTERFACE_MODE_GMII && ++ state->interface != PHY_INTERFACE_MODE_INTERNAL) + goto unsupported; + break; + case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */ +@@ -2730,7 +2809,8 @@ static void mt753x_phylink_mac_link_up(s + /* MT753x MAC works in 1G full duplex mode for all up-clocked + * variants. + */ +- if (interface == PHY_INTERFACE_MODE_TRGMII || ++ if (interface == PHY_INTERFACE_MODE_INTERNAL || ++ interface == PHY_INTERFACE_MODE_TRGMII || + (phy_interface_mode_is_8023z(interface))) { + speed = SPEED_1000; + duplex = DUPLEX_FULL; +@@ -2810,6 +2890,21 @@ mt7531_cpu_port_config(struct dsa_switch + return 0; + } + ++static int ++mt7988_cpu_port_config(struct dsa_switch *ds, int port) ++{ ++ struct mt7530_priv *priv = ds->priv; ++ ++ mt7530_write(priv, MT7530_PMCR_P(port), ++ PMCR_CPU_PORT_SETTING(priv->id)); ++ ++ mt753x_phylink_mac_link_up(ds, port, MLO_AN_FIXED, ++ PHY_INTERFACE_MODE_INTERNAL, NULL, ++ SPEED_10000, DUPLEX_FULL, true, true); ++ ++ return 0; ++} ++ + static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port, + struct phylink_config *config) + { +@@ -2955,6 +3050,27 @@ static int mt753x_set_mac_eee(struct dsa + return 0; + } + ++static int mt7988_pad_setup(struct dsa_switch *ds, phy_interface_t interface) ++{ ++ return 0; ++} ++ ++static int mt7988_setup(struct dsa_switch *ds) ++{ ++ struct mt7530_priv *priv = ds->priv; ++ ++ /* Reset the switch */ ++ reset_control_assert(priv->rstc); ++ usleep_range(20, 50); ++ reset_control_deassert(priv->rstc); ++ usleep_range(20, 50); ++ ++ /* Reset the switch PHYs */ ++ mt7530_write(priv, MT7530_SYS_CTRL, SYS_CTRL_PHY_RST); ++ ++ return mt7531_setup_common(ds); ++} ++ + const struct dsa_switch_ops mt7530_switch_ops = { + .get_tag_protocol = mtk_get_tag_protocol, + .setup = mt753x_setup, +@@ -3023,6 +3139,17 @@ const struct mt753x_info mt753x_table[] + .mac_port_get_caps = mt7531_mac_port_get_caps, + .mac_port_config = mt7531_mac_config, + }, ++ [ID_MT7988] = { ++ .id = ID_MT7988, ++ .pcs_ops = &mt7530_pcs_ops, ++ .sw_setup = mt7988_setup, ++ .phy_read = mt7531_ind_phy_read, ++ .phy_write = mt7531_ind_phy_write, ++ .pad_setup = mt7988_pad_setup, ++ .cpu_port_config = mt7988_cpu_port_config, ++ .mac_port_get_caps = mt7988_mac_port_get_caps, ++ .mac_port_config = mt7988_mac_config, ++ }, + }; + EXPORT_SYMBOL_GPL(mt753x_table); + +--- a/drivers/net/dsa/mt7530.h ++++ b/drivers/net/dsa/mt7530.h +@@ -18,6 +18,7 @@ enum mt753x_id { + ID_MT7530 = 0, + ID_MT7621 = 1, + ID_MT7531 = 2, ++ ID_MT7988 = 3, + }; + + #define NUM_TRGMII_CTRL 5 +@@ -54,11 +55,11 @@ enum mt753x_id { + #define MT7531_MIRROR_PORT_SET(x) (((x) & MIRROR_MASK) << 16) + #define MT7531_CPU_PMAP_MASK GENMASK(7, 0) + +-#define MT753X_MIRROR_REG(id) (((id) == ID_MT7531) ? \ ++#define MT753X_MIRROR_REG(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \ + MT7531_CFC : MT7530_MFC) +-#define MT753X_MIRROR_EN(id) (((id) == ID_MT7531) ? \ ++#define MT753X_MIRROR_EN(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \ + MT7531_MIRROR_EN : MIRROR_EN) +-#define MT753X_MIRROR_MASK(id) (((id) == ID_MT7531) ? \ ++#define MT753X_MIRROR_MASK(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \ + MT7531_MIRROR_MASK : MIRROR_MASK) + + /* Registers for BPDU and PAE frame control*/ +@@ -295,9 +296,8 @@ enum mt7530_vlan_port_acc_frm { + MT7531_FORCE_DPX | \ + MT7531_FORCE_RX_FC | \ + MT7531_FORCE_TX_FC) +-#define PMCR_FORCE_MODE_ID(id) (((id) == ID_MT7531) ? \ +- MT7531_FORCE_MODE : \ +- PMCR_FORCE_MODE) ++#define PMCR_FORCE_MODE_ID(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \ ++ MT7531_FORCE_MODE : PMCR_FORCE_MODE) + #define PMCR_LINK_SETTINGS_MASK (PMCR_TX_EN | PMCR_FORCE_SPEED_1000 | \ + PMCR_RX_EN | PMCR_FORCE_SPEED_100 | \ + PMCR_TX_FC_EN | PMCR_RX_FC_EN | \ diff --git a/target/linux/generic/backport-5.15/790-v6.4-0014-net-dsa-mt7530-fix-support-for-MT7531BE.patch b/target/linux/generic/backport-5.15/790-v6.4-0014-net-dsa-mt7530-fix-support-for-MT7531BE.patch new file mode 100644 index 0000000000..5259730996 --- /dev/null +++ b/target/linux/generic/backport-5.15/790-v6.4-0014-net-dsa-mt7530-fix-support-for-MT7531BE.patch @@ -0,0 +1,118 @@ +From 91daa4f62ce878b6e1ac5908aceb83550332447f Mon Sep 17 00:00:00 2001 +From: Daniel Golle +Date: Sun, 16 Apr 2023 13:08:14 +0100 +Subject: [PATCH] net: dsa: mt7530: fix support for MT7531BE +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +There are two variants of the MT7531 switch IC which got different +features (and pins) regarding port 5: + * MT7531AE: SGMII/1000Base-X/2500Base-X SerDes PCS + * MT7531BE: RGMII + +Moving the creation of the SerDes PCS from mt753x_setup to mt7530_probe +with commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation +to mt7530_probe function") works fine for MT7531AE which got two +instances of mtk-pcs-lynxi, however, MT7531BE requires mt7531_pll_setup +to setup clocks before the single PCS on port 6 (usually used as CPU +port) starts to work and hence the PCS creation failed on MT7531BE. + +Fix this by introducing a pointer to mt7531_create_sgmii function in +struct mt7530_priv and call it again at the end of mt753x_setup like it +was before commit 6de285229773 ("net: dsa: mt7530: move SGMII PCS +creation to mt7530_probe function"). + +Fixes: 6de285229773 ("net: dsa: mt7530: move SGMII PCS creation to mt7530_probe function") +Signed-off-by: Daniel Golle +Acked-by: Arınç ÜNAL +Link: https://lore.kernel.org/r/ZDvlLhhqheobUvOK@makrotopia.org +Signed-off-by: Jakub Kicinski +--- + drivers/net/dsa/mt7530-mdio.c | 16 ++++++++-------- + drivers/net/dsa/mt7530.c | 6 ++++++ + drivers/net/dsa/mt7530.h | 4 ++-- + 3 files changed, 16 insertions(+), 10 deletions(-) + +--- a/drivers/net/dsa/mt7530-mdio.c ++++ b/drivers/net/dsa/mt7530-mdio.c +@@ -81,14 +81,17 @@ static const struct regmap_bus mt7530_re + }; + + static int +-mt7531_create_sgmii(struct mt7530_priv *priv) ++mt7531_create_sgmii(struct mt7530_priv *priv, bool dual_sgmii) + { +- struct regmap_config *mt7531_pcs_config[2]; ++ struct regmap_config *mt7531_pcs_config[2] = {}; + struct phylink_pcs *pcs; + struct regmap *regmap; + int i, ret = 0; + +- for (i = 0; i < 2; i++) { ++ /* MT7531AE has two SGMII units for port 5 and port 6 ++ * MT7531BE has only one SGMII unit for port 6 ++ */ ++ for (i = dual_sgmii ? 0 : 1; i < 2; i++) { + mt7531_pcs_config[i] = devm_kzalloc(priv->dev, + sizeof(struct regmap_config), + GFP_KERNEL); +@@ -208,11 +211,8 @@ mt7530_probe(struct mdio_device *mdiodev + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + +- if (priv->id == ID_MT7531) { +- ret = mt7531_create_sgmii(priv); +- if (ret) +- return ret; +- } ++ if (priv->id == ID_MT7531) ++ priv->create_sgmii = mt7531_create_sgmii; + + return dsa_register_switch(priv->ds); + } +--- a/drivers/net/dsa/mt7530.c ++++ b/drivers/net/dsa/mt7530.c +@@ -3017,6 +3017,12 @@ mt753x_setup(struct dsa_switch *ds) + if (ret && priv->irq) + mt7530_free_irq_common(priv); + ++ if (priv->create_sgmii) { ++ ret = priv->create_sgmii(priv, mt7531_dual_sgmii_supported(priv)); ++ if (ret && priv->irq) ++ mt7530_free_irq(priv); ++ } ++ + return ret; + } + +--- a/drivers/net/dsa/mt7530.h ++++ b/drivers/net/dsa/mt7530.h +@@ -741,10 +741,10 @@ struct mt753x_info { + * registers + * @p6_interface Holding the current port 6 interface + * @p5_intf_sel: Holding the current port 5 interface select +- * + * @irq: IRQ number of the switch + * @irq_domain: IRQ domain of the switch irq_chip + * @irq_enable: IRQ enable bits, synced to SYS_INT_EN ++ * @create_sgmii: Pointer to function creating SGMII PCS instance(s) + */ + struct mt7530_priv { + struct device *dev; +@@ -763,7 +763,6 @@ struct mt7530_priv { + unsigned int p5_intf_sel; + u8 mirror_rx; + u8 mirror_tx; +- + struct mt7530_port ports[MT7530_NUM_PORTS]; + struct mt753x_pcs pcs[MT7530_NUM_PORTS]; + /* protect among processes for registers access*/ +@@ -771,6 +770,7 @@ struct mt7530_priv { + int irq; + struct irq_domain *irq_domain; + u32 irq_enable; ++ int (*create_sgmii)(struct mt7530_priv *priv, bool dual_sgmii); + }; + + struct mt7530_hw_vlan_entry { diff --git a/target/linux/generic/backport-5.15/791-v6.2-01-net-phy-Add-driver-for-Motorcomm-yt8521-gigabit-ethernet.patch b/target/linux/generic/backport-5.15/791-v6.2-01-net-phy-Add-driver-for-Motorcomm-yt8521-gigabit-ethernet.patch index 57137c34fc..e2a0e25a79 100644 --- a/target/linux/generic/backport-5.15/791-v6.2-01-net-phy-Add-driver-for-Motorcomm-yt8521-gigabit-ethernet.patch +++ b/target/linux/generic/backport-5.15/791-v6.2-01-net-phy-Add-driver-for-Motorcomm-yt8521-gigabit-ethernet.patch @@ -21,7 +21,7 @@ Signed-off-by: David S. Miller --- a/MAINTAINERS +++ b/MAINTAINERS -@@ -12697,6 +12697,7 @@ F: include/uapi/linux/meye.h +@@ -12700,6 +12700,7 @@ F: include/uapi/linux/meye.h MOTORCOMM PHY DRIVER M: Peter Geis diff --git a/target/linux/generic/backport-5.15/804-v5.18-0009-nvmem-Add-driver-for-OCOTP-in-Sunplus-SP7021.patch b/target/linux/generic/backport-5.15/804-v5.18-0009-nvmem-Add-driver-for-OCOTP-in-Sunplus-SP7021.patch index 2a9dc74947..ae177e0cb0 100644 --- a/target/linux/generic/backport-5.15/804-v5.18-0009-nvmem-Add-driver-for-OCOTP-in-Sunplus-SP7021.patch +++ b/target/linux/generic/backport-5.15/804-v5.18-0009-nvmem-Add-driver-for-OCOTP-in-Sunplus-SP7021.patch @@ -19,7 +19,7 @@ Signed-off-by: Greg Kroah-Hartman --- a/MAINTAINERS +++ b/MAINTAINERS -@@ -17962,6 +17962,11 @@ L: netdev@vger.kernel.org +@@ -17965,6 +17965,11 @@ L: netdev@vger.kernel.org S: Maintained F: drivers/net/ethernet/dlink/sundance.c diff --git a/target/linux/generic/backport-5.15/806-v6.0-0001-nvmem-microchip-otpc-add-support.patch b/target/linux/generic/backport-5.15/806-v6.0-0001-nvmem-microchip-otpc-add-support.patch index b1855d1f2f..ad0460d4f3 100644 --- a/target/linux/generic/backport-5.15/806-v6.0-0001-nvmem-microchip-otpc-add-support.patch +++ b/target/linux/generic/backport-5.15/806-v6.0-0001-nvmem-microchip-otpc-add-support.patch @@ -57,7 +57,7 @@ Signed-off-by: Greg Kroah-Hartman --- a/MAINTAINERS +++ b/MAINTAINERS -@@ -12361,6 +12361,14 @@ S: Supported +@@ -12364,6 +12364,14 @@ S: Supported F: Documentation/devicetree/bindings/mtd/atmel-nand.txt F: drivers/mtd/nand/raw/atmel/* 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 index d93ee0685b..bd806a7a6d 100644 --- 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 @@ -15,7 +15,7 @@ Signed-off-by: Alexander Couzens --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c -@@ -2347,6 +2347,10 @@ mt7531_setup(struct dsa_switch *ds) +@@ -2440,6 +2440,10 @@ mt7531_setup(struct dsa_switch *ds) return -ENODEV; } diff --git a/target/linux/generic/pending-5.15/795-mt7530-register-OF-node-for-internal-MDIO-bus.patch b/target/linux/generic/pending-5.15/795-mt7530-register-OF-node-for-internal-MDIO-bus.patch index f9b88db995..8a64a2a985 100644 --- a/target/linux/generic/pending-5.15/795-mt7530-register-OF-node-for-internal-MDIO-bus.patch +++ b/target/linux/generic/pending-5.15/795-mt7530-register-OF-node-for-internal-MDIO-bus.patch @@ -16,7 +16,7 @@ Signed-off-by: David Bauer --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c -@@ -2081,10 +2081,13 @@ mt7530_setup_mdio(struct mt7530_priv *pr +@@ -2121,10 +2121,13 @@ mt7530_setup_mdio(struct mt7530_priv *pr { struct dsa_switch *ds = priv->ds; struct device *dev = priv->dev; @@ -30,7 +30,7 @@ Signed-off-by: David Bauer bus = devm_mdiobus_alloc(dev); if (!bus) return -ENOMEM; -@@ -2101,7 +2104,9 @@ mt7530_setup_mdio(struct mt7530_priv *pr +@@ -2141,7 +2144,9 @@ mt7530_setup_mdio(struct mt7530_priv *pr if (priv->irq) mt7530_setup_mdio_irq(priv); diff --git a/target/linux/mediatek/filogic/config-5.15 b/target/linux/mediatek/filogic/config-5.15 index 7268b69389..134afb63f9 100644 --- a/target/linux/mediatek/filogic/config-5.15 +++ b/target/linux/mediatek/filogic/config-5.15 @@ -250,6 +250,8 @@ CONFIG_NEED_SG_DMA_LENGTH=y CONFIG_NET_DEVLINK=y CONFIG_NET_DSA=y CONFIG_NET_DSA_MT7530=y +CONFIG_NET_DSA_MT7530_MDIO=y +CONFIG_NET_DSA_MT7530_MMIO=y CONFIG_NET_DSA_TAG_MTK=y CONFIG_NET_FLOW_LIMIT=y CONFIG_NET_MEDIATEK_SOC=y diff --git a/target/linux/mediatek/mt7622/config-5.15 b/target/linux/mediatek/mt7622/config-5.15 index 88ca94472c..2de14752b4 100644 --- a/target/linux/mediatek/mt7622/config-5.15 +++ b/target/linux/mediatek/mt7622/config-5.15 @@ -272,6 +272,8 @@ CONFIG_NEED_SG_DMA_LENGTH=y CONFIG_NET_DEVLINK=y CONFIG_NET_DSA=y CONFIG_NET_DSA_MT7530=y +CONFIG_NET_DSA_MT7530_MDIO=y +# CONFIG_NET_DSA_MT7530_MMIO is not set CONFIG_NET_DSA_TAG_MTK=y CONFIG_NET_FLOW_LIMIT=y CONFIG_NET_MEDIATEK_SOC=y diff --git a/target/linux/mediatek/mt7623/config-5.15 b/target/linux/mediatek/mt7623/config-5.15 index 77d20a3bdb..af0a5c1939 100644 --- a/target/linux/mediatek/mt7623/config-5.15 +++ b/target/linux/mediatek/mt7623/config-5.15 @@ -372,6 +372,8 @@ CONFIG_NEON=y CONFIG_NET_DEVLINK=y CONFIG_NET_DSA=y CONFIG_NET_DSA_MT7530=y +CONFIG_NET_DSA_MT7530_MDIO=y +# CONFIG_NET_DSA_MT7530_MMIO is not set CONFIG_NET_DSA_TAG_MTK=y CONFIG_NET_FLOW_LIMIT=y CONFIG_NET_MEDIATEK_SOC=y diff --git a/target/linux/mediatek/mt7629/config-5.15 b/target/linux/mediatek/mt7629/config-5.15 index 46b444108b..08089dde2a 100644 --- a/target/linux/mediatek/mt7629/config-5.15 +++ b/target/linux/mediatek/mt7629/config-5.15 @@ -197,6 +197,8 @@ CONFIG_NETFILTER=y CONFIG_NET_DEVLINK=y CONFIG_NET_DSA=y CONFIG_NET_DSA_MT7530=y +CONFIG_NET_DSA_MT7530_MDIO=y +# CONFIG_NET_DSA_MT7530_MMIO is not set CONFIG_NET_DSA_TAG_MTK=y CONFIG_NET_FLOW_LIMIT=y CONFIG_NET_MEDIATEK_SOC=y diff --git a/target/linux/ramips/mt7621/config-5.15 b/target/linux/ramips/mt7621/config-5.15 index 1b8a48100d..1b4330c2d1 100644 --- a/target/linux/ramips/mt7621/config-5.15 +++ b/target/linux/ramips/mt7621/config-5.15 @@ -184,6 +184,8 @@ CONFIG_NEED_DMA_MAP_STATE=y CONFIG_NET_DEVLINK=y CONFIG_NET_DSA=y CONFIG_NET_DSA_MT7530=y +CONFIG_NET_DSA_MT7530_MDIO=y +# CONFIG_NET_DSA_MT7530_MMIO is not set CONFIG_NET_DSA_TAG_MTK=y CONFIG_NET_FLOW_LIMIT=y CONFIG_NET_MEDIATEK_SOC=y diff --git a/target/linux/realtek/patches-5.15/008-5.17-watchdog-add-realtek-otto-watchdog-timer.patch b/target/linux/realtek/patches-5.15/008-5.17-watchdog-add-realtek-otto-watchdog-timer.patch index e562dd8396..17ff729f52 100644 --- a/target/linux/realtek/patches-5.15/008-5.17-watchdog-add-realtek-otto-watchdog-timer.patch +++ b/target/linux/realtek/patches-5.15/008-5.17-watchdog-add-realtek-otto-watchdog-timer.patch @@ -32,7 +32,7 @@ Signed-off-by: Guenter Roeck --- a/MAINTAINERS +++ b/MAINTAINERS -@@ -15899,6 +15899,13 @@ S: Maintained +@@ -15902,6 +15902,13 @@ S: Maintained F: include/sound/rt*.h F: sound/soc/codecs/rt* diff --git a/target/linux/realtek/patches-5.15/700-net-dsa-add-support-for-rtl838x-switch.patch b/target/linux/realtek/patches-5.15/700-net-dsa-add-support-for-rtl838x-switch.patch index 8f40001263..8c6a4c3639 100644 --- a/target/linux/realtek/patches-5.15/700-net-dsa-add-support-for-rtl838x-switch.patch +++ b/target/linux/realtek/patches-5.15/700-net-dsa-add-support-for-rtl838x-switch.patch @@ -22,7 +22,7 @@ Submitted-by: John Crispin --- a/drivers/net/dsa/Kconfig +++ b/drivers/net/dsa/Kconfig -@@ -61,6 +61,8 @@ source "drivers/net/dsa/sja1105/Kconfig" +@@ -85,6 +85,8 @@ source "drivers/net/dsa/sja1105/Kconfig" source "drivers/net/dsa/xrs700x/Kconfig" @@ -33,7 +33,7 @@ Submitted-by: John Crispin select NET_DSA_TAG_RTL4_A --- a/drivers/net/dsa/Makefile +++ b/drivers/net/dsa/Makefile -@@ -22,5 +22,6 @@ obj-y += microchip/ +@@ -24,5 +24,6 @@ obj-y += microchip/ obj-y += mv88e6xxx/ obj-y += ocelot/ obj-y += qca/ -- 2.30.2