linux-kernel - [PATCH 4/7] [DSA] add support for GMAC2 wired to ext

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Date:   Tue, 11 Dec 2018 20:33:11 +0100
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Matthias Brugger <matthias.bgg@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>
Subject: [PATCH 4/7] [DSA] add support for GMAC2 wired to ext

based on
https://github.com/openwrt/openwrt/blob/master/target/linux/mediatek/patches-4.14/0032-net-dsa-mediatek-add-support-for-GMAC2-wired-to-ext-.patch

Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
---
 drivers/net/dsa/mt7530.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index a5de9bffe5be..a6a15a063e3e 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1277,6 +1277,11 @@ mt7530_setup(struct dsa_switch *ds)
 	val = mt7530_read(priv, MT7530_MHWTRAP);
 	val &= ~MHWTRAP_P6_DIS & ~MHWTRAP_PHY_ACCESS;
 	val |= MHWTRAP_MANUAL;
+	if (!dsa_is_cpu_port(ds, 5)) {
+		val |= MHWTRAP_P5_DIS;
+		val |= MHWTRAP_P5_MAC_SEL;
+		val |= MHWTRAP_P5_RGMII_MODE;
+	}
 	mt7530_write(priv, MT7530_MHWTRAP, val);
 
 	/* Enable and reset MIB counters */
-- 
2.17.1