openwrt/target/linux/generic/pending-6.1/795-07-net-dsa-mt7530-move-MT753X_MTRAP-operations-for-MT75.patch
Daniel Golle d40691a5fb generic: 6.1, 6.6: mt7530: import pending patches
net: dsa: mt7530: explain exposing MDIO bus of MT7531AE better
 net: dsa: mt7530: do not pass port variable to mt7531_rgmii_setup()
 net: dsa: mt7530: use priv->ds->num_ports instead of MT7530_NUM_PORTS
 net: dsa: mt7530: get rid of mac_port_validate member of mt753x_info
 net: dsa: mt7530: refactor MT7530_PMEEECR_P()
 net: dsa: mt7530: get rid of function sanity check
 net: dsa: mt7530: define MAC speed capabilities per switch model
 net: dsa: mt7530: return mt7530_setup_mdio & mt7531_setup_common on error
 net: dsa: mt7530: move MT753X_MTRAP operations for MT7530
 net: dsa: mt7530: refactor MT7530_HWTRAP and MT7530_MHWTRAP
 net: dsa: mt7530: refactor MT7530_MFC and MT7531_CFC, add MT7531_QRY_FFP
 net: dsa: mt7530: rename mt753x_bpdu_port_fw enum to mt753x_to_cpu_fw
 net: dsa: mt7530: rename p5_intf_sel and use only for MT7530 switch
 net: dsa: mt7530: refactor MT7530_PMCR_P()
 net: dsa: mt7530: disable EEE abilities on failure on MT7531 and MT7988

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-04-24 21:05:46 +01:00

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From 2982f395c9a513b168f1e685588f70013cba2f5f 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 10:15:14 +0300
Subject: [PATCH 07/15] net: dsa: mt7530: move MT753X_MTRAP operations for
MT7530
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
On MT7530, the media-independent interfaces of port 5 and 6 are controlled
by the MT7530_P5_DIS and MT7530_P6_DIS bits of the hardware trap. Deal with
these bits only when the relevant port is being enabled or disabled. This
ensures that these ports will be disabled when they are not in use.
Do not set MT7530_CHG_TRAP on mt7530_setup_port5() as that's already being
done on mt7530_setup().
Instead of globally setting MT7530_P5_MAC_SEL, clear it, then set it only
on the appropriate case.
If PHY muxing is detected, clear MT7530_P5_DIS before calling
mt7530_setup_port5().
Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
---
drivers/net/dsa/mt7530.c | 38 +++++++++++++++++++++++++++-----------
1 file changed, 27 insertions(+), 11 deletions(-)
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -873,8 +873,7 @@ static void mt7530_setup_port5(struct ds
val = mt7530_read(priv, MT753X_MTRAP);
- val |= MT7530_CHG_TRAP | MT7530_P5_MAC_SEL | MT7530_P5_DIS;
- val &= ~MT7530_P5_RGMII_MODE & ~MT7530_P5_PHY0_SEL;
+ val &= ~MT7530_P5_PHY0_SEL & ~MT7530_P5_MAC_SEL & ~MT7530_P5_RGMII_MODE;
switch (priv->p5_mode) {
/* MUX_PHY_P0: P0 -> P5 -> SoC MAC */
@@ -884,15 +883,13 @@ static void mt7530_setup_port5(struct ds
/* MUX_PHY_P4: P4 -> P5 -> SoC MAC */
case MUX_PHY_P4:
- val &= ~MT7530_P5_MAC_SEL & ~MT7530_P5_DIS;
-
/* Setup the MAC by default for the cpu port */
mt7530_write(priv, MT753X_PMCR_P(5), 0x56300);
break;
/* GMAC5: P5 -> SoC MAC or external PHY */
default:
- val &= ~MT7530_P5_DIS;
+ val |= MT7530_P5_MAC_SEL;
break;
}
@@ -1186,6 +1183,14 @@ mt7530_port_enable(struct dsa_switch *ds
mutex_unlock(&priv->reg_mutex);
+ if (priv->id != ID_MT7530 && priv->id != ID_MT7621)
+ return 0;
+
+ if (port == 5)
+ mt7530_clear(priv, MT753X_MTRAP, MT7530_P5_DIS);
+ else if (port == 6)
+ mt7530_clear(priv, MT753X_MTRAP, MT7530_P6_DIS);
+
return 0;
}
@@ -1204,6 +1209,14 @@ mt7530_port_disable(struct dsa_switch *d
PCR_MATRIX_CLR);
mutex_unlock(&priv->reg_mutex);
+
+ if (priv->id != ID_MT7530 && priv->id != ID_MT7621)
+ return;
+
+ if (port == 5)
+ mt7530_set(priv, MT753X_MTRAP, MT7530_P5_DIS);
+ else if (port == 6)
+ mt7530_set(priv, MT753X_MTRAP, MT7530_P6_DIS);
}
static int
@@ -2392,11 +2405,11 @@ mt7530_setup(struct dsa_switch *ds)
mt7530_rmw(priv, MT7530_TRGMII_RD(i),
RD_TAP_MASK, RD_TAP(16));
- /* Enable port 6 */
- val = mt7530_read(priv, MT753X_MTRAP);
- val &= ~MT7530_P6_DIS & ~MT7530_PHY_INDIRECT_ACCESS;
- val |= MT7530_CHG_TRAP;
- mt7530_write(priv, MT753X_MTRAP, val);
+ /* Allow modifying the trap and directly access PHY registers via the
+ * MDIO bus the switch is on.
+ */
+ mt7530_rmw(priv, MT753X_MTRAP, MT7530_CHG_TRAP |
+ MT7530_PHY_INDIRECT_ACCESS, MT7530_CHG_TRAP);
if ((val & MT7530_XTAL_MASK) == MT7530_XTAL_40MHZ)
mt7530_pll_setup(priv);
@@ -2479,8 +2492,11 @@ mt7530_setup(struct dsa_switch *ds)
break;
}
- if (priv->p5_mode == MUX_PHY_P0 || priv->p5_mode == MUX_PHY_P4)
+ if (priv->p5_mode == MUX_PHY_P0 ||
+ priv->p5_mode == MUX_PHY_P4) {
+ mt7530_clear(priv, MT753X_MTRAP, MT7530_P5_DIS);
mt7530_setup_port5(ds, interface);
+ }
}
#ifdef CONFIG_GPIOLIB