generic: v6.1, v6.6: add patch to fix PHY-muxing on MT7530

Move accepted patches to backport folder, re-add previously removed patch
which caused havoc on MT7621 and add the (still pending) fix.

Fixes: d40691a5fb ("generic: 6.1, 6.6: mt7530: import pending patches")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 200 insertions, 0 deletions

diff --git a/target/linux/generic/backport-6.6/790-39-v6.10-net-dsa-mt7530-refactor-MT7530_PMCR_P.patch b/target/linux/generic/backport-6.6/790-39-v6.10-net-dsa-mt7530-refactor-MT7530_PMCR_P.patch
new file mode 100644
index 0000000000..89fad45dd5
--- /dev/null
+++ b/target/linux/generic/backport-6.6/790-39-v6.10-net-dsa-mt7530-refactor-MT7530_PMCR_P.patch
@@ -0,0 +1,200 @@
+From 712ad00d2f43814c81a7abfcbc339690a05fb6a0 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
+Date: Mon, 22 Apr 2024 10:15:09 +0300
+Subject: [PATCH 02/15] net: dsa: mt7530: refactor MT7530_PMCR_P()
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The MT7530_PMCR_P() registers are on MT7530, MT7531, and the switch on the
+MT7988 SoC. Rename the definition for them to MT753X_PMCR_P(). Bit 15 is
+for MT7530 only. Add MT7530 prefix to the definition for bit 15.
+
+Use GENMASK and FIELD_PREP for PMCR_IFG_XMIT().
+
+Rename PMCR_TX_EN and PMCR_RX_EN to PMCR_MAC_TX_EN and PMCR_MAC_TX_EN to
+follow the naming on the "MT7621 Giga Switch Programming Guide v0.3",
+"MT7531 Reference Manual for Development Board v1.0", and "MT7988A Wi-Fi 7
+Generation Router Platform: Datasheet (Open Version) v0.1" documents.
+
+These documents show that PMCR_RX_FC_EN is at bit 5. Correct this along
+with renaming it to PMCR_FORCE_RX_FC_EN, and the same for PMCR_TX_FC_EN.
+
+Remove PMCR_SPEED_MASK which doesn't have a use.
+
+Rename the force mode definitions for MT7531 to FORCE_MODE. Add MASK at the
+end for the mask that includes all force mode definitions.
+
+Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
+---
+ drivers/net/dsa/mt7530.c | 24 ++++++++---------
+ drivers/net/dsa/mt7530.h | 58 +++++++++++++++++++++-------------------
+ 2 files changed, 42 insertions(+), 40 deletions(-)
+
+--- a/drivers/net/dsa/mt7530.c
++++ b/drivers/net/dsa/mt7530.c
+@@ -896,7 +896,7 @@ static void mt7530_setup_port5(struct ds
+ 		val &= ~MHWTRAP_P5_MAC_SEL & ~MHWTRAP_P5_DIS;
+ 
+ 		/* Setup the MAC by default for the cpu port */
+-		mt7530_write(priv, MT7530_PMCR_P(5), 0x56300);
++		mt7530_write(priv, MT753X_PMCR_P(5), 0x56300);
+ 		break;
+ 	case P5_INTF_SEL_GMAC5:
+ 		/* MT7530_P5_MODE_GMAC: P5 -> External phy or 2nd GMAC */
+@@ -2444,8 +2444,8 @@ mt7530_setup(struct dsa_switch *ds)
+ 		/* Clear link settings and enable force mode to force link down
+ 		 * on all ports until they're enabled later.
+ 		 */
+-		mt7530_rmw(priv, MT7530_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
+-			   PMCR_FORCE_MODE, PMCR_FORCE_MODE);
++		mt7530_rmw(priv, MT753X_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
++			   MT7530_FORCE_MODE, MT7530_FORCE_MODE);
+ 
+ 		/* Disable forwarding by default on all ports */
+ 		mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
+@@ -2555,8 +2555,8 @@ mt7531_setup_common(struct dsa_switch *d
+ 		/* Clear link settings and enable force mode to force link down
+ 		 * on all ports until they're enabled later.
+ 		 */
+-		mt7530_rmw(priv, MT7530_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
+-			   MT7531_FORCE_MODE, MT7531_FORCE_MODE);
++		mt7530_rmw(priv, MT753X_PMCR_P(i), PMCR_LINK_SETTINGS_MASK |
++			   MT7531_FORCE_MODE_MASK, MT7531_FORCE_MODE_MASK);
+ 
+ 		/* Disable forwarding by default on all ports */
+ 		mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
+@@ -2639,7 +2639,7 @@ mt7531_setup(struct dsa_switch *ds)
+ 
+ 	/* Force link down on all ports before internal reset */
+ 	for (i = 0; i < MT7530_NUM_PORTS; i++)
+-		mt7530_write(priv, MT7530_PMCR_P(i), MT7531_FORCE_LNK);
++		mt7530_write(priv, MT753X_PMCR_P(i), MT7531_FORCE_MODE_LNK);
+ 
+ 	/* Reset the switch through internal reset */
+ 	mt7530_write(priv, MT7530_SYS_CTRL, SYS_CTRL_SW_RST | SYS_CTRL_REG_RST);
+@@ -2881,7 +2881,7 @@ mt753x_phylink_mac_config(struct phylink
+ 
+ 	/* Are we connected to external phy */
+ 	if (port == 5 && dsa_is_user_port(ds, 5))
+-		mt7530_set(priv, MT7530_PMCR_P(port), PMCR_EXT_PHY);
++		mt7530_set(priv, MT753X_PMCR_P(port), PMCR_EXT_PHY);
+ }
+ 
+ static void mt753x_phylink_mac_link_down(struct phylink_config *config,
+@@ -2891,7 +2891,7 @@ static void mt753x_phylink_mac_link_down
+ 	struct dsa_port *dp = dsa_phylink_to_port(config);
+ 	struct mt7530_priv *priv = dp->ds->priv;
+ 
+-	mt7530_clear(priv, MT7530_PMCR_P(dp->index), PMCR_LINK_SETTINGS_MASK);
++	mt7530_clear(priv, MT753X_PMCR_P(dp->index), PMCR_LINK_SETTINGS_MASK);
+ }
+ 
+ static void mt753x_phylink_mac_link_up(struct phylink_config *config,
+@@ -2905,7 +2905,7 @@ static void mt753x_phylink_mac_link_up(s
+ 	struct mt7530_priv *priv = dp->ds->priv;
+ 	u32 mcr;
+ 
+-	mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK;
++	mcr = PMCR_MAC_RX_EN | PMCR_MAC_TX_EN | PMCR_FORCE_LNK;
+ 
+ 	switch (speed) {
+ 	case SPEED_1000:
+@@ -2920,9 +2920,9 @@ static void mt753x_phylink_mac_link_up(s
+ 	if (duplex == DUPLEX_FULL) {
+ 		mcr |= PMCR_FORCE_FDX;
+ 		if (tx_pause)
+-			mcr |= PMCR_TX_FC_EN;
++			mcr |= PMCR_FORCE_TX_FC_EN;
+ 		if (rx_pause)
+-			mcr |= PMCR_RX_FC_EN;
++			mcr |= PMCR_FORCE_RX_FC_EN;
+ 	}
+ 
+ 	if (mode == MLO_AN_PHY && phydev && phy_init_eee(phydev, false) >= 0) {
+@@ -2937,7 +2937,7 @@ static void mt753x_phylink_mac_link_up(s
+ 		}
+ 	}
+ 
+-	mt7530_set(priv, MT7530_PMCR_P(dp->index), mcr);
++	mt7530_set(priv, MT753X_PMCR_P(dp->index), mcr);
+ }
+ 
+ static void mt753x_phylink_get_caps(struct dsa_switch *ds, int port,
+--- a/drivers/net/dsa/mt7530.h
++++ b/drivers/net/dsa/mt7530.h
+@@ -304,44 +304,46 @@ enum mt7530_vlan_port_acc_frm {
+ #define  G0_PORT_VID_DEF		G0_PORT_VID(0)
+ 
+ /* Register for port MAC control register */
+-#define MT7530_PMCR_P(x)		(0x3000 + ((x) * 0x100))
+-#define  PMCR_IFG_XMIT(x)		(((x) & 0x3) << 18)
++#define MT753X_PMCR_P(x)		(0x3000 + ((x) * 0x100))
++#define  PMCR_IFG_XMIT_MASK		GENMASK(19, 18)
++#define  PMCR_IFG_XMIT(x)		FIELD_PREP(PMCR_IFG_XMIT_MASK, x)
+ #define  PMCR_EXT_PHY			BIT(17)
+ #define  PMCR_MAC_MODE			BIT(16)
+-#define  PMCR_FORCE_MODE		BIT(15)
+-#define  PMCR_TX_EN			BIT(14)
+-#define  PMCR_RX_EN			BIT(13)
++#define  MT7530_FORCE_MODE		BIT(15)
++#define  PMCR_MAC_TX_EN			BIT(14)
++#define  PMCR_MAC_RX_EN			BIT(13)
+ #define  PMCR_BACKOFF_EN		BIT(9)
+ #define  PMCR_BACKPR_EN			BIT(8)
+ #define  PMCR_FORCE_EEE1G		BIT(7)
+ #define  PMCR_FORCE_EEE100		BIT(6)
+-#define  PMCR_TX_FC_EN			BIT(5)
+-#define  PMCR_RX_FC_EN			BIT(4)
++#define  PMCR_FORCE_RX_FC_EN		BIT(5)
++#define  PMCR_FORCE_TX_FC_EN		BIT(4)
+ #define  PMCR_FORCE_SPEED_1000		BIT(3)
+ #define  PMCR_FORCE_SPEED_100		BIT(2)
+ #define  PMCR_FORCE_FDX			BIT(1)
+ #define  PMCR_FORCE_LNK			BIT(0)
+-#define  PMCR_SPEED_MASK		(PMCR_FORCE_SPEED_100 | \
+-					 PMCR_FORCE_SPEED_1000)
+-#define  MT7531_FORCE_LNK		BIT(31)
+-#define  MT7531_FORCE_SPD		BIT(30)
+-#define  MT7531_FORCE_DPX		BIT(29)
+-#define  MT7531_FORCE_RX_FC		BIT(28)
+-#define  MT7531_FORCE_TX_FC		BIT(27)
+-#define  MT7531_FORCE_EEE100		BIT(26)
+-#define  MT7531_FORCE_EEE1G		BIT(25)
+-#define  MT7531_FORCE_MODE		(MT7531_FORCE_LNK | \
+-					 MT7531_FORCE_SPD | \
+-					 MT7531_FORCE_DPX | \
+-					 MT7531_FORCE_RX_FC | \
+-					 MT7531_FORCE_TX_FC | \
+-					 MT7531_FORCE_EEE100 | \
+-					 MT7531_FORCE_EEE1G)
+-#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 | \
+-					 PMCR_FORCE_FDX | PMCR_FORCE_LNK | \
+-					 PMCR_FORCE_EEE1G | PMCR_FORCE_EEE100)
++#define  MT7531_FORCE_MODE_LNK		BIT(31)
++#define  MT7531_FORCE_MODE_SPD		BIT(30)
++#define  MT7531_FORCE_MODE_DPX		BIT(29)
++#define  MT7531_FORCE_MODE_RX_FC	BIT(28)
++#define  MT7531_FORCE_MODE_TX_FC	BIT(27)
++#define  MT7531_FORCE_MODE_EEE100	BIT(26)
++#define  MT7531_FORCE_MODE_EEE1G	BIT(25)
++#define  MT7531_FORCE_MODE_MASK		(MT7531_FORCE_MODE_LNK | \
++					 MT7531_FORCE_MODE_SPD | \
++					 MT7531_FORCE_MODE_DPX | \
++					 MT7531_FORCE_MODE_RX_FC | \
++					 MT7531_FORCE_MODE_TX_FC | \
++					 MT7531_FORCE_MODE_EEE100 | \
++					 MT7531_FORCE_MODE_EEE1G)
++#define  PMCR_LINK_SETTINGS_MASK	(PMCR_MAC_TX_EN | PMCR_MAC_RX_EN | \
++					 PMCR_FORCE_EEE1G | \
++					 PMCR_FORCE_EEE100 | \
++					 PMCR_FORCE_RX_FC_EN | \
++					 PMCR_FORCE_TX_FC_EN | \
++					 PMCR_FORCE_SPEED_1000 | \
++					 PMCR_FORCE_SPEED_100 | \
++					 PMCR_FORCE_FDX | PMCR_FORCE_LNK)
+ 
+ #define MT7530_PMEEECR_P(x)		(0x3004 + (x) * 0x100)
+ #define  WAKEUP_TIME_1000(x)		(((x) & 0xFF) << 24)