aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/mediatek/patches-5.4/0602-net-dsa-mt7530-use-resolved-link-config-in-mac_link_.patch
blob: ae153847dcee92c552e47915c0e65b30bc833caf (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource@vdorst.com>
Date: Fri, 27 Mar 2020 15:44:12 +0100
Subject: [PATCH] net: dsa: mt7530: use resolved link config in mac_link_up()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Convert the mt7530 switch driver to use the finalised link
parameters in mac_link_up() rather than the parameters in mac_config().

Signed-off-by: René van Dorst <opensource@vdorst.com>
Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -490,17 +490,6 @@ mt7530_mib_reset(struct dsa_switch *ds)
 	mt7530_write(priv, MT7530_MIB_CCR, CCR_MIB_ACTIVATE);
 }
 
-static void
-mt7530_port_set_status(struct mt7530_priv *priv, int port, int enable)
-{
-	u32 mask = PMCR_TX_EN | PMCR_RX_EN | PMCR_FORCE_LNK;
-
-	if (enable)
-		mt7530_set(priv, MT7530_PMCR_P(port), mask);
-	else
-		mt7530_clear(priv, MT7530_PMCR_P(port), mask);
-}
-
 static int mt7530_phy_read(struct dsa_switch *ds, int port, int regnum)
 {
 	struct mt7530_priv *priv = ds->priv;
@@ -674,7 +663,7 @@ mt7530_port_enable(struct dsa_switch *ds
 	priv->ports[port].enable = true;
 	mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
 		   priv->ports[port].pm);
-	mt7530_port_set_status(priv, port, 0);
+	mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
 
 	mutex_unlock(&priv->reg_mutex);
 
@@ -697,7 +686,7 @@ mt7530_port_disable(struct dsa_switch *d
 	priv->ports[port].enable = false;
 	mt7530_rmw(priv, MT7530_PCR_P(port), PCR_MATRIX_MASK,
 		   PCR_MATRIX_CLR);
-	mt7530_port_set_status(priv, port, 0);
+	mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
 
 	mutex_unlock(&priv->reg_mutex);
 }
@@ -1407,8 +1396,7 @@ static void mt7530_phylink_mac_config(st
 
 	mcr_cur = mt7530_read(priv, MT7530_PMCR_P(port));
 	mcr_new = mcr_cur;
-	mcr_new &= ~(PMCR_FORCE_SPEED_1000 | PMCR_FORCE_SPEED_100 |
-		     PMCR_FORCE_FDX | PMCR_TX_FC_EN | PMCR_RX_FC_EN);
+	mcr_new &= ~PMCR_LINK_SETTINGS_MASK;
 	mcr_new |= PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | PMCR_BACKOFF_EN |
 		   PMCR_BACKPR_EN | PMCR_FORCE_MODE;
 
@@ -1416,26 +1404,6 @@ static void mt7530_phylink_mac_config(st
 	if (port == 5 && dsa_is_user_port(ds, 5))
 		mcr_new |= PMCR_EXT_PHY;
 
-	switch (state->speed) {
-	case SPEED_1000:
-		mcr_new |= PMCR_FORCE_SPEED_1000;
-		if (priv->eee_enable & BIT(port))
-			mcr_new |= PMCR_FORCE_EEE1G;
-		break;
-	case SPEED_100:
-		mcr_new |= PMCR_FORCE_SPEED_100;
-		if (priv->eee_enable & BIT(port))
-			mcr_new |= PMCR_FORCE_EEE100;
-		break;
-	}
-	if (state->duplex == DUPLEX_FULL) {
-		mcr_new |= PMCR_FORCE_FDX;
-		if (state->pause & MLO_PAUSE_TX)
-			mcr_new |= PMCR_TX_FC_EN;
-		if (state->pause & MLO_PAUSE_RX)
-			mcr_new |= PMCR_RX_FC_EN;
-	}
-
 	if (mcr_new != mcr_cur)
 		mt7530_write(priv, MT7530_PMCR_P(port), mcr_new);
 }
@@ -1446,7 +1414,7 @@ static void mt7530_phylink_mac_link_down
 {
 	struct mt7530_priv *priv = ds->priv;
 
-	mt7530_port_set_status(priv, port, 0);
+	mt7530_clear(priv, MT7530_PMCR_P(port), PMCR_LINK_SETTINGS_MASK);
 }
 
 static void mt7530_phylink_mac_link_up(struct dsa_switch *ds, int port,
@@ -1457,8 +1425,31 @@ static void mt7530_phylink_mac_link_up(s
 				       bool tx_pause, bool rx_pause)
 {
 	struct mt7530_priv *priv = ds->priv;
+	u32 mcr;
+
+	mcr = PMCR_RX_EN | PMCR_TX_EN | PMCR_FORCE_LNK;
+
+	switch (speed) {
+	case SPEED_1000:
+		mcr |= PMCR_FORCE_SPEED_1000;
+		if (priv->eee_enable & BIT(port))
+			mcr_new |= PMCR_FORCE_EEE1G;
+		break;
+	case SPEED_100:
+		mcr |= PMCR_FORCE_SPEED_100;
+		if (priv->eee_enable & BIT(port))
+			mcr_new |= PMCR_FORCE_EEE100;
+		break;
+	}
+	if (duplex == DUPLEX_FULL) {
+		mcr |= PMCR_FORCE_FDX;
+		if (tx_pause)
+			mcr |= PMCR_TX_FC_EN;
+		if (rx_pause)
+			mcr |= PMCR_RX_FC_EN;
+	}
 
-	mt7530_port_set_status(priv, port, 1);
+	mt7530_set(priv, MT7530_PMCR_P(port), mcr);
 }
 
 static void mt7530_phylink_validate(struct dsa_switch *ds, int port,
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -222,6 +222,10 @@ enum mt7530_vlan_port_attr {
 #define  PMCR_FORCE_LNK			BIT(0)
 #define  PMCR_SPEED_MASK		(PMCR_FORCE_SPEED_100 | \
 					 PMCR_FORCE_SPEED_1000)
+#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)
 
 #define MT7530_PMSR_P(x)		(0x3008 + (x) * 0x100)
 #define  PMSR_EEE1G			BIT(7)