From 54d792f257c65aaff7ac2ab5ea5f83b14c910778 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:47 +0200
Subject: [PATCH 01/10] net: dsa: Centralise global and port setup code into
 mv88e6xxx.

The port setup code in the individual drivers is identical for 6123,
6171, and 6352, and very similar in 6131. Move it all into mv88e6xxx,
using the chip families to differentiate on features.

Similarly, the global setup is also very similar. Move the majority
into mv8e6xxx.

The chips themselves fall into families. Add helpers which uses the
device IDs to determine if a device is a member of a family or not.
Add some additional device IDs to the existing list, to make these
helper functions more complete. However these IDs are not yet added to
the probe functions.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6123_61_65.c | 168 +------------
 drivers/net/dsa/mv88e6131.c       | 149 +----------
 drivers/net/dsa/mv88e6171.c       | 170 +------------
 drivers/net/dsa/mv88e6352.c       | 168 +------------
 drivers/net/dsa/mv88e6xxx.c       | 405 ++++++++++++++++++++++++++++--
 drivers/net/dsa/mv88e6xxx.h       |  86 ++++++-
 6 files changed, 486 insertions(+), 660 deletions(-)

diff --git a/drivers/net/dsa/mv88e6123_61_65.c b/drivers/net/dsa/mv88e6123_61_65.c
index b4af6d5aff7c..73325ab520f2 100644
--- a/drivers/net/dsa/mv88e6123_61_65.c
+++ b/drivers/net/dsa/mv88e6123_61_65.c
@@ -55,7 +55,10 @@ static char *mv88e6123_61_65_probe(struct device *host_dev, int sw_addr)
 static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 {
 	int ret;
-	int i;
+
+	ret = mv88e6xxx_setup_global(ds);
+	if (ret)
+		return ret;
 
 	/* Disable the PHY polling unit (since there won't be any
 	 * external PHYs to poll), don't discard packets with
@@ -63,17 +66,6 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 	 */
 	REG_WRITE(REG_GLOBAL, 0x04, 0x0000);
 
-	/* Set the default address aging time to 5 minutes, and
-	 * enable address learn messages to be sent to all message
-	 * ports.
-	 */
-	REG_WRITE(REG_GLOBAL, 0x0a, 0x0148);
-
-	/* Configure the priority mapping registers. */
-	ret = mv88e6xxx_config_prio(ds);
-	if (ret < 0)
-		return ret;
-
 	/* Configure the upstream port, and configure the upstream
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
@@ -85,157 +77,9 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 	 */
 	REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
 
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:2x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x02, 0xffff);
-
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:0x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x03, 0xffff);
-
-	/* Disable the loopback filter, disable flow control
-	 * messages, disable flood broadcast override, disable
-	 * removing of provider tags, disable ATU age violation
-	 * interrupts, disable tag flow control, force flow
-	 * control priority to the highest, and send all special
-	 * multicast frames to the CPU at the highest priority.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
-
-	/* Program the DSA routing table. */
-	for (i = 0; i < 32; i++) {
-		int nexthop;
-
-		nexthop = 0x1f;
-		if (i != ds->index && i < ds->dst->pd->nr_chips)
-			nexthop = ds->pd->rtable[i] & 0x1f;
-
-		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
-	}
-
-	/* Clear all trunk masks. */
-	for (i = 0; i < 8; i++)
-		REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0xff);
-
-	/* Clear all trunk mappings. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 | (i << 11));
-
-	/* Disable ingress rate limiting by resetting all ingress
-	 * rate limit registers to their initial state.
-	 */
-	for (i = 0; i < 6; i++)
-		REG_WRITE(REG_GLOBAL2, 0x09, 0x9000 | (i << 8));
-
-	/* Initialise cross-chip port VLAN table to reset defaults. */
-	REG_WRITE(REG_GLOBAL2, 0x0b, 0x9000);
-
-	/* Clear the priority override table. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x0f, 0x8000 | (i << 8));
-
-	/* @@@ initialise AVB (22/23) watchdog (27) sdet (29) registers */
-
 	return 0;
 }
 
-static int mv88e6123_61_65_setup_port(struct dsa_switch *ds, int p)
-{
-	int addr = REG_PORT(p);
-	u16 val;
-
-	/* MAC Forcing register: don't force link, speed, duplex
-	 * or flow control state to any particular values on physical
-	 * ports, but force the CPU port and all DSA ports to 1000 Mb/s
-	 * full duplex.
-	 */
-	if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
-		REG_WRITE(addr, 0x01, 0x003e);
-	else
-		REG_WRITE(addr, 0x01, 0x0003);
-
-	/* Do not limit the period of time that this port can be
-	 * paused for by the remote end or the period of time that
-	 * this port can pause the remote end.
-	 */
-	REG_WRITE(addr, 0x02, 0x0000);
-
-	/* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
-	 * disable Header mode, enable IGMP/MLD snooping, disable VLAN
-	 * tunneling, determine priority by looking at 802.1p and IP
-	 * priority fields (IP prio has precedence), and set STP state
-	 * to Forwarding.
-	 *
-	 * If this is the CPU link, use DSA or EDSA tagging depending
-	 * on which tagging mode was configured.
-	 *
-	 * If this is a link to another switch, use DSA tagging mode.
-	 *
-	 * If this is the upstream port for this switch, enable
-	 * forwarding of unknown unicasts and multicasts.
-	 */
-	val = 0x0433;
-	if (dsa_is_cpu_port(ds, p)) {
-		if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA)
-			val |= 0x3300;
-		else
-			val |= 0x0100;
-	}
-	if (ds->dsa_port_mask & (1 << p))
-		val |= 0x0100;
-	if (p == dsa_upstream_port(ds))
-		val |= 0x000c;
-	REG_WRITE(addr, 0x04, val);
-
-	/* Port Control 2: don't force a good FCS, set the maximum
-	 * frame size to 10240 bytes, don't let the switch add or
-	 * strip 802.1q tags, don't discard tagged or untagged frames
-	 * on this port, do a destination address lookup on all
-	 * received packets as usual, disable ARP mirroring and don't
-	 * send a copy of all transmitted/received frames on this port
-	 * to the CPU.
-	 */
-	REG_WRITE(addr, 0x08, 0x2080);
-
-	/* Egress rate control: disable egress rate control. */
-	REG_WRITE(addr, 0x09, 0x0001);
-
-	/* Egress rate control 2: disable egress rate control. */
-	REG_WRITE(addr, 0x0a, 0x0000);
-
-	/* Port Association Vector: when learning source addresses
-	 * of packets, add the address to the address database using
-	 * a port bitmap that has only the bit for this port set and
-	 * the other bits clear.
-	 */
-	REG_WRITE(addr, 0x0b, 1 << p);
-
-	/* Port ATU control: disable limiting the number of address
-	 * database entries that this port is allowed to use.
-	 */
-	REG_WRITE(addr, 0x0c, 0x0000);
-
-	/* Priority Override: disable DA, SA and VTU priority override. */
-	REG_WRITE(addr, 0x0d, 0x0000);
-
-	/* Port Ethertype: use the Ethertype DSA Ethertype value. */
-	REG_WRITE(addr, 0x0f, ETH_P_EDSA);
-
-	/* Tag Remap: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x18, 0x3210);
-
-	/* Tag Remap 2: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x19, 0x7654);
-
-	return mv88e6xxx_setup_port_common(ds, p);
-}
-
 static int mv88e6123_61_65_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
@@ -262,14 +106,12 @@ static int mv88e6123_61_65_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	/* @@@ initialise vtu and atu */
-
 	ret = mv88e6123_61_65_setup_global(ds);
 	if (ret < 0)
 		return ret;
 
 	for (i = 0; i < ps->num_ports; i++) {
-		ret = mv88e6123_61_65_setup_port(ds, i);
+		ret = mv88e6xxx_setup_port(ds, i);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/net/dsa/mv88e6131.c b/drivers/net/dsa/mv88e6131.c
index e54824fa0d95..310c1cf37830 100644
--- a/drivers/net/dsa/mv88e6131.c
+++ b/drivers/net/dsa/mv88e6131.c
@@ -45,7 +45,10 @@ static char *mv88e6131_probe(struct device *host_dev, int sw_addr)
 static int mv88e6131_setup_global(struct dsa_switch *ds)
 {
 	int ret;
-	int i;
+
+	ret = mv88e6xxx_setup_global(ds);
+	if (ret)
+		return ret;
 
 	/* Enable the PHY polling unit, don't discard packets with
 	 * excessive collisions, use a weighted fair queueing scheme
@@ -54,17 +57,6 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	 */
 	REG_WRITE(REG_GLOBAL, 0x04, 0x4400);
 
-	/* Set the default address aging time to 5 minutes, and
-	 * enable address learn messages to be sent to all message
-	 * ports.
-	 */
-	REG_WRITE(REG_GLOBAL, 0x0a, 0x0148);
-
-	/* Configure the priority mapping registers. */
-	ret = mv88e6xxx_config_prio(ds);
-	if (ret < 0)
-		return ret;
-
 	/* Set the VLAN ethertype to 0x8100. */
 	REG_WRITE(REG_GLOBAL, 0x19, 0x8100);
 
@@ -83,38 +75,6 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	else
 		REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 | (ds->index & 0x1f));
 
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:0x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x03, 0xffff);
-
-	/* Ignore removed tag data on doubly tagged packets, disable
-	 * flow control messages, force flow control priority to the
-	 * highest, and send all special multicast frames to the CPU
-	 * port at the highest priority.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
-
-	/* Program the DSA routing table. */
-	for (i = 0; i < 32; i++) {
-		int nexthop;
-
-		nexthop = 0x1f;
-		if (ds->pd->rtable &&
-		    i != ds->index && i < ds->dst->pd->nr_chips)
-			nexthop = ds->pd->rtable[i] & 0x1f;
-
-		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
-	}
-
-	/* Clear all trunk masks. */
-	for (i = 0; i < 8; i++)
-		REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0x7ff);
-
-	/* Clear all trunk mappings. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 | (i << 11));
-
 	/* Force the priority of IGMP/MLD snoop frames and ARP frames
 	 * to the highest setting.
 	 */
@@ -123,103 +83,6 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	return 0;
 }
 
-static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
-{
-	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-	int addr = REG_PORT(p);
-	u16 val;
-
-	/* MAC Forcing register: don't force link, speed, duplex
-	 * or flow control state to any particular values on physical
-	 * ports, but force the CPU port and all DSA ports to 1000 Mb/s
-	 * (100 Mb/s on 6085) full duplex.
-	 */
-	if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
-		if (ps->id == PORT_SWITCH_ID_6085)
-			REG_WRITE(addr, 0x01, 0x003d); /* 100 Mb/s */
-		else
-			REG_WRITE(addr, 0x01, 0x003e); /* 1000 Mb/s */
-	else
-		REG_WRITE(addr, 0x01, 0x0003);
-
-	/* Port Control: disable Core Tag, disable Drop-on-Lock,
-	 * transmit frames unmodified, disable Header mode,
-	 * enable IGMP/MLD snoop, disable DoubleTag, disable VLAN
-	 * tunneling, determine priority by looking at 802.1p and
-	 * IP priority fields (IP prio has precedence), and set STP
-	 * state to Forwarding.
-	 *
-	 * If this is the upstream port for this switch, enable
-	 * forwarding of unknown unicasts, and enable DSA tagging
-	 * mode.
-	 *
-	 * If this is the link to another switch, use DSA tagging
-	 * mode, but do not enable forwarding of unknown unicasts.
-	 */
-	val = 0x0433;
-	if (p == dsa_upstream_port(ds)) {
-		val |= 0x0104;
-		/* On 6085, unknown multicast forward is controlled
-		 * here rather than in Port Control 2 register.
-		 */
-		if (ps->id == PORT_SWITCH_ID_6085)
-			val |= 0x0008;
-	}
-	if (ds->dsa_port_mask & (1 << p))
-		val |= 0x0100;
-	REG_WRITE(addr, 0x04, val);
-
-	/* Port Control 2: don't force a good FCS, don't use
-	 * VLAN-based, source address-based or destination
-	 * address-based priority overrides, don't let the switch
-	 * add or strip 802.1q tags, don't discard tagged or
-	 * untagged frames on this port, do a destination address
-	 * lookup on received packets as usual, don't send a copy
-	 * of all transmitted/received frames on this port to the
-	 * CPU, and configure the upstream port number.
-	 *
-	 * If this is the upstream port for this switch, enable
-	 * forwarding of unknown multicast addresses.
-	 */
-	if (ps->id == PORT_SWITCH_ID_6085)
-		/* on 6085, bits 3:0 are reserved, bit 6 control ARP
-		 * mirroring, and multicast forward is handled in
-		 * Port Control register.
-		 */
-		REG_WRITE(addr, 0x08, 0x0080);
-	else {
-		val = 0x0080 | dsa_upstream_port(ds);
-		if (p == dsa_upstream_port(ds))
-			val |= 0x0040;
-		REG_WRITE(addr, 0x08, val);
-	}
-
-	/* Rate Control: disable ingress rate limiting. */
-	REG_WRITE(addr, 0x09, 0x0000);
-
-	/* Rate Control 2: disable egress rate limiting. */
-	REG_WRITE(addr, 0x0a, 0x0000);
-
-	/* Port Association Vector: when learning source addresses
-	 * of packets, add the address to the address database using
-	 * a port bitmap that has only the bit for this port set and
-	 * the other bits clear.
-	 */
-	REG_WRITE(addr, 0x0b, 1 << p);
-
-	/* Tag Remap: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x18, 0x3210);
-
-	/* Tag Remap 2: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x19, 0x7654);
-
-	return mv88e6xxx_setup_port_common(ds, p);
-}
-
 static int mv88e6131_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
@@ -251,14 +114,12 @@ static int mv88e6131_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	/* @@@ initialise vtu and atu */
-
 	ret = mv88e6131_setup_global(ds);
 	if (ret < 0)
 		return ret;
 
 	for (i = 0; i < ps->num_ports; i++) {
-		ret = mv88e6131_setup_port(ds, i);
+		ret = mv88e6xxx_setup_port(ds, i);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 9104efea0e3e..2b733f0cd6b9 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -38,26 +38,17 @@ static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
 
 static int mv88e6171_setup_global(struct dsa_switch *ds)
 {
-	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret;
-	int i;
+
+	ret = mv88e6xxx_setup_global(ds);
+	if (ret)
+		return ret;
 
 	/* Discard packets with excessive collisions, mask all
 	 * interrupt sources, enable PPU.
 	 */
 	REG_WRITE(REG_GLOBAL, 0x04, 0x6000);
 
-	/* Set the default address aging time to 5 minutes, and
-	 * enable address learn messages to be sent to all message
-	 * ports.
-	 */
-	REG_WRITE(REG_GLOBAL, 0x0a, 0x0148);
-
-	/* Configure the priority mapping registers. */
-	ret = mv88e6xxx_config_prio(ds);
-	if (ret < 0)
-		return ret;
-
 	/* Configure the upstream port, and configure the upstream
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
@@ -72,158 +63,9 @@ static int mv88e6171_setup_global(struct dsa_switch *ds)
 	 */
 	REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
 
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:2x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x02, 0xffff);
-
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:0x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x03, 0xffff);
-
-	/* Disable the loopback filter, disable flow control
-	 * messages, disable flood broadcast override, disable
-	 * removing of provider tags, disable ATU age violation
-	 * interrupts, disable tag flow control, force flow
-	 * control priority to the highest, and send all special
-	 * multicast frames to the CPU at the highest priority.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
-
-	/* Program the DSA routing table. */
-	for (i = 0; i < 32; i++) {
-		int nexthop;
-
-		nexthop = 0x1f;
-		if (i != ds->index && i < ds->dst->pd->nr_chips)
-			nexthop = ds->pd->rtable[i] & 0x1f;
-
-		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
-	}
-
-	/* Clear all trunk masks. */
-	for (i = 0; i < ps->num_ports; i++)
-		REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0xff);
-
-	/* Clear all trunk mappings. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 | (i << 11));
-
-	/* Disable ingress rate limiting by resetting all ingress
-	 * rate limit registers to their initial state.
-	 */
-	for (i = 0; i < 6; i++)
-		REG_WRITE(REG_GLOBAL2, 0x09, 0x9000 | (i << 8));
-
-	/* Initialise cross-chip port VLAN table to reset defaults. */
-	REG_WRITE(REG_GLOBAL2, 0x0b, 0x9000);
-
-	/* Clear the priority override table. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x0f, 0x8000 | (i << 8));
-
-	/* @@@ initialise AVB (22/23) watchdog (27) sdet (29) registers */
-
 	return 0;
 }
 
-static int mv88e6171_setup_port(struct dsa_switch *ds, int p)
-{
-	int addr = REG_PORT(p);
-	u16 val;
-
-	/* MAC Forcing register: don't force link, speed, duplex
-	 * or flow control state to any particular values on physical
-	 * ports, but force the CPU port and all DSA ports to 1000 Mb/s
-	 * full duplex.
-	 */
-	val = REG_READ(addr, 0x01);
-	if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
-		REG_WRITE(addr, 0x01, val | 0x003e);
-	else
-		REG_WRITE(addr, 0x01, val | 0x0003);
-
-	/* Do not limit the period of time that this port can be
-	 * paused for by the remote end or the period of time that
-	 * this port can pause the remote end.
-	 */
-	REG_WRITE(addr, 0x02, 0x0000);
-
-	/* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
-	 * disable Header mode, enable IGMP/MLD snooping, disable VLAN
-	 * tunneling, determine priority by looking at 802.1p and IP
-	 * priority fields (IP prio has precedence), and set STP state
-	 * to Forwarding.
-	 *
-	 * If this is the CPU link, use DSA or EDSA tagging depending
-	 * on which tagging mode was configured.
-	 *
-	 * If this is a link to another switch, use DSA tagging mode.
-	 *
-	 * If this is the upstream port for this switch, enable
-	 * forwarding of unknown unicasts and multicasts.
-	 */
-	val = 0x0433;
-	if (dsa_is_cpu_port(ds, p)) {
-		if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA)
-			val |= 0x3300;
-		else
-			val |= 0x0100;
-	}
-	if (ds->dsa_port_mask & (1 << p))
-		val |= 0x0100;
-	if (p == dsa_upstream_port(ds))
-		val |= 0x000c;
-	REG_WRITE(addr, 0x04, val);
-
-	/* Port Control 2: don't force a good FCS, set the maximum
-	 * frame size to 10240 bytes, don't let the switch add or
-	 * strip 802.1q tags, don't discard tagged or untagged frames
-	 * on this port, do a destination address lookup on all
-	 * received packets as usual, disable ARP mirroring and don't
-	 * send a copy of all transmitted/received frames on this port
-	 * to the CPU.
-	 */
-	REG_WRITE(addr, 0x08, 0x2080);
-
-	/* Egress rate control: disable egress rate control. */
-	REG_WRITE(addr, 0x09, 0x0001);
-
-	/* Egress rate control 2: disable egress rate control. */
-	REG_WRITE(addr, 0x0a, 0x0000);
-
-	/* Port Association Vector: when learning source addresses
-	 * of packets, add the address to the address database using
-	 * a port bitmap that has only the bit for this port set and
-	 * the other bits clear.
-	 */
-	REG_WRITE(addr, 0x0b, 1 << p);
-
-	/* Port ATU control: disable limiting the number of address
-	 * database entries that this port is allowed to use.
-	 */
-	REG_WRITE(addr, 0x0c, 0x0000);
-
-	/* Priority Override: disable DA, SA and VTU priority override. */
-	REG_WRITE(addr, 0x0d, 0x0000);
-
-	/* Port Ethertype: use the Ethertype DSA Ethertype value. */
-	REG_WRITE(addr, 0x0f, ETH_P_EDSA);
-
-	/* Tag Remap: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x18, 0x3210);
-
-	/* Tag Remap 2: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x19, 0x7654);
-
-	return mv88e6xxx_setup_port_common(ds, p);
-}
-
 static int mv88e6171_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
@@ -240,8 +82,6 @@ static int mv88e6171_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	/* @@@ initialise vtu and atu */
-
 	ret = mv88e6171_setup_global(ds);
 	if (ret < 0)
 		return ret;
@@ -250,7 +90,7 @@ static int mv88e6171_setup(struct dsa_switch *ds)
 		if (!(dsa_is_cpu_port(ds, i) || ds->phys_port_mask & (1 << i)))
 			continue;
 
-		ret = mv88e6171_setup_port(ds, i);
+		ret = mv88e6xxx_setup_port(ds, i);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index 126c11b81e75..b32ec3e9bd6d 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -47,26 +47,17 @@ static char *mv88e6352_probe(struct device *host_dev, int sw_addr)
 
 static int mv88e6352_setup_global(struct dsa_switch *ds)
 {
-	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret;
-	int i;
+
+	ret = mv88e6xxx_setup_global(ds);
+	if (ret)
+		return ret;
 
 	/* Discard packets with excessive collisions,
 	 * mask all interrupt sources, enable PPU (bit 14, undocumented).
 	 */
 	REG_WRITE(REG_GLOBAL, 0x04, 0x6000);
 
-	/* Set the default address aging time to 5 minutes, and
-	 * enable address learn messages to be sent to all message
-	 * ports.
-	 */
-	REG_WRITE(REG_GLOBAL, 0x0a, 0x0148);
-
-	/* Configure the priority mapping registers. */
-	ret = mv88e6xxx_config_prio(ds);
-	if (ret < 0)
-		return ret;
-
 	/* Configure the upstream port, and configure the upstream
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
@@ -78,156 +69,9 @@ static int mv88e6352_setup_global(struct dsa_switch *ds)
 	 */
 	REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
 
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:2x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x02, 0xffff);
-
-	/* Send all frames with destination addresses matching
-	 * 01:80:c2:00:00:0x to the CPU port.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x03, 0xffff);
-
-	/* Disable the loopback filter, disable flow control
-	 * messages, disable flood broadcast override, disable
-	 * removing of provider tags, disable ATU age violation
-	 * interrupts, disable tag flow control, force flow
-	 * control priority to the highest, and send all special
-	 * multicast frames to the CPU at the highest priority.
-	 */
-	REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
-
-	/* Program the DSA routing table. */
-	for (i = 0; i < 32; i++) {
-		int nexthop = 0x1f;
-
-		if (i != ds->index && i < ds->dst->pd->nr_chips)
-			nexthop = ds->pd->rtable[i] & 0x1f;
-
-		REG_WRITE(REG_GLOBAL2, 0x06, 0x8000 | (i << 8) | nexthop);
-	}
-
-	/* Clear all trunk masks. */
-	for (i = 0; i < 8; i++)
-		REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0x7f);
-
-	/* Clear all trunk mappings. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x08, 0x8000 | (i << 11));
-
-	/* Disable ingress rate limiting by resetting all ingress
-	 * rate limit registers to their initial state.
-	 */
-	for (i = 0; i < ps->num_ports; i++)
-		REG_WRITE(REG_GLOBAL2, 0x09, 0x9000 | (i << 8));
-
-	/* Initialise cross-chip port VLAN table to reset defaults. */
-	REG_WRITE(REG_GLOBAL2, 0x0b, 0x9000);
-
-	/* Clear the priority override table. */
-	for (i = 0; i < 16; i++)
-		REG_WRITE(REG_GLOBAL2, 0x0f, 0x8000 | (i << 8));
-
-	/* @@@ initialise AVB (22/23) watchdog (27) sdet (29) registers */
-
 	return 0;
 }
 
-static int mv88e6352_setup_port(struct dsa_switch *ds, int p)
-{
-	int addr = REG_PORT(p);
-	u16 val;
-
-	/* MAC Forcing register: don't force link, speed, duplex
-	 * or flow control state to any particular values on physical
-	 * ports, but force the CPU port and all DSA ports to 1000 Mb/s
-	 * full duplex.
-	 */
-	if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
-		REG_WRITE(addr, 0x01, 0x003e);
-	else
-		REG_WRITE(addr, 0x01, 0x0003);
-
-	/* Do not limit the period of time that this port can be
-	 * paused for by the remote end or the period of time that
-	 * this port can pause the remote end.
-	 */
-	REG_WRITE(addr, 0x02, 0x0000);
-
-	/* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
-	 * disable Header mode, enable IGMP/MLD snooping, disable VLAN
-	 * tunneling, determine priority by looking at 802.1p and IP
-	 * priority fields (IP prio has precedence), and set STP state
-	 * to Forwarding.
-	 *
-	 * If this is the CPU link, use DSA or EDSA tagging depending
-	 * on which tagging mode was configured.
-	 *
-	 * If this is a link to another switch, use DSA tagging mode.
-	 *
-	 * If this is the upstream port for this switch, enable
-	 * forwarding of unknown unicasts and multicasts.
-	 */
-	val = 0x0433;
-	if (dsa_is_cpu_port(ds, p)) {
-		if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA)
-			val |= 0x3300;
-		else
-			val |= 0x0100;
-	}
-	if (ds->dsa_port_mask & (1 << p))
-		val |= 0x0100;
-	if (p == dsa_upstream_port(ds))
-		val |= 0x000c;
-	REG_WRITE(addr, 0x04, val);
-
-	/* Port Control 2: don't force a good FCS, set the maximum
-	 * frame size to 10240 bytes, don't let the switch add or
-	 * strip 802.1q tags, don't discard tagged or untagged frames
-	 * on this port, do a destination address lookup on all
-	 * received packets as usual, disable ARP mirroring and don't
-	 * send a copy of all transmitted/received frames on this port
-	 * to the CPU.
-	 */
-	REG_WRITE(addr, 0x08, 0x2080);
-
-	/* Egress rate control: disable egress rate control. */
-	REG_WRITE(addr, 0x09, 0x0001);
-
-	/* Egress rate control 2: disable egress rate control. */
-	REG_WRITE(addr, 0x0a, 0x0000);
-
-	/* Port Association Vector: when learning source addresses
-	 * of packets, add the address to the address database using
-	 * a port bitmap that has only the bit for this port set and
-	 * the other bits clear.
-	 */
-	REG_WRITE(addr, 0x0b, 1 << p);
-
-	/* Port ATU control: disable limiting the number of address
-	 * database entries that this port is allowed to use.
-	 */
-	REG_WRITE(addr, 0x0c, 0x0000);
-
-	/* Priority Override: disable DA, SA and VTU priority override. */
-	REG_WRITE(addr, 0x0d, 0x0000);
-
-	/* Port Ethertype: use the Ethertype DSA Ethertype value. */
-	REG_WRITE(addr, 0x0f, ETH_P_EDSA);
-
-	/* Tag Remap: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x18, 0x3210);
-
-	/* Tag Remap 2: use an identity 802.1p prio -> switch prio
-	 * mapping.
-	 */
-	REG_WRITE(addr, 0x19, 0x7654);
-
-	return mv88e6xxx_setup_port_common(ds, p);
-}
-
 #ifdef CONFIG_NET_DSA_HWMON
 
 static int mv88e6352_get_temp(struct dsa_switch *ds, int *temp)
@@ -306,14 +150,12 @@ static int mv88e6352_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	/* @@@ initialise vtu and atu */
-
 	ret = mv88e6352_setup_global(ds);
 	if (ret < 0)
 		return ret;
 
 	for (i = 0; i < ps->num_ports; i++) {
-		ret = mv88e6352_setup_port(ds, i);
+		ret = mv88e6xxx_setup_port(ds, i);
 		if (ret < 0)
 			return ret;
 	}
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index af639ab4c55b..84496066f21b 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -165,24 +165,6 @@ int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val)
 	return ret;
 }
 
-int mv88e6xxx_config_prio(struct dsa_switch *ds)
-{
-	/* Configure the IP ToS mapping registers. */
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_0, 0x0000);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_1, 0x0000);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_2, 0x5555);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_3, 0x5555);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_4, 0xaaaa);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_5, 0xaaaa);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_6, 0xffff);
-	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_7, 0xffff);
-
-	/* Configure the IEEE 802.1p priority mapping register. */
-	REG_WRITE(REG_GLOBAL, GLOBAL_IEEE_PRI, 0xfa41);
-
-	return 0;
-}
-
 int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr)
 {
 	REG_WRITE(REG_GLOBAL, GLOBAL_MAC_01, (addr[0] << 8) | addr[1]);
@@ -434,14 +416,100 @@ void mv88e6xxx_poll_link(struct dsa_switch *ds)
 	}
 }
 
+static bool mv88e6xxx_6065_family(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+	switch (ps->id) {
+	case PORT_SWITCH_ID_6031:
+	case PORT_SWITCH_ID_6061:
+	case PORT_SWITCH_ID_6035:
+	case PORT_SWITCH_ID_6065:
+		return true;
+	}
+	return false;
+}
+
+static bool mv88e6xxx_6095_family(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+	switch (ps->id) {
+	case PORT_SWITCH_ID_6092:
+	case PORT_SWITCH_ID_6095:
+		return true;
+	}
+	return false;
+}
+
+static bool mv88e6xxx_6097_family(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+	switch (ps->id) {
+	case PORT_SWITCH_ID_6046:
+	case PORT_SWITCH_ID_6085:
+	case PORT_SWITCH_ID_6096:
+	case PORT_SWITCH_ID_6097:
+		return true;
+	}
+	return false;
+}
+
+static bool mv88e6xxx_6165_family(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+	switch (ps->id) {
+	case PORT_SWITCH_ID_6123:
+	case PORT_SWITCH_ID_6161:
+	case PORT_SWITCH_ID_6165:
+		return true;
+	}
+	return false;
+}
+
+static bool mv88e6xxx_6185_family(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+	switch (ps->id) {
+	case PORT_SWITCH_ID_6121:
+	case PORT_SWITCH_ID_6122:
+	case PORT_SWITCH_ID_6152:
+	case PORT_SWITCH_ID_6155:
+	case PORT_SWITCH_ID_6182:
+	case PORT_SWITCH_ID_6185:
+	case PORT_SWITCH_ID_6108:
+	case PORT_SWITCH_ID_6131:
+		return true;
+	}
+	return false;
+}
+
+static bool mv88e6xxx_6351_family(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+
+	switch (ps->id) {
+	case PORT_SWITCH_ID_6171:
+	case PORT_SWITCH_ID_6175:
+	case PORT_SWITCH_ID_6350:
+	case PORT_SWITCH_ID_6351:
+		return true;
+	}
+	return false;
+}
+
 static bool mv88e6xxx_6352_family(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 
 	switch (ps->id) {
-	case PORT_SWITCH_ID_6352:
 	case PORT_SWITCH_ID_6172:
 	case PORT_SWITCH_ID_6176:
+	case PORT_SWITCH_ID_6240:
+	case PORT_SWITCH_ID_6352:
 		return true;
 	}
 	return false;
@@ -1241,13 +1309,212 @@ static void mv88e6xxx_bridge_work(struct work_struct *work)
 	}
 }
 
-int mv88e6xxx_setup_port_common(struct dsa_switch *ds, int port)
+int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret, fid;
+	u16 reg;
 
 	mutex_lock(&ps->smi_mutex);
 
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+	    mv88e6xxx_6185_family(ds) || mv88e6xxx_6095_family(ds) ||
+	    mv88e6xxx_6065_family(ds)) {
+		/* MAC Forcing register: don't force link, speed,
+		 * duplex or flow control state to any particular
+		 * values on physical ports, but force the CPU port
+		 * and all DSA ports to their maximum bandwidth and
+		 * full duplex.
+		 */
+		reg = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_PCS_CTRL);
+		if (dsa_is_cpu_port(ds, port) ||
+		    ds->dsa_port_mask & (1 << port)) {
+			reg |= PORT_PCS_CTRL_FORCE_LINK |
+				PORT_PCS_CTRL_LINK_UP |
+				PORT_PCS_CTRL_DUPLEX_FULL |
+				PORT_PCS_CTRL_FORCE_DUPLEX;
+			if (mv88e6xxx_6065_family(ds))
+				reg |= PORT_PCS_CTRL_100;
+			else
+				reg |= PORT_PCS_CTRL_1000;
+		} else {
+			reg |= PORT_PCS_CTRL_UNFORCED;
+		}
+
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_PCS_CTRL, reg);
+		if (ret)
+			goto abort;
+	}
+
+	/* Port Control: disable Drop-on-Unlock, disable Drop-on-Lock,
+	 * disable Header mode, enable IGMP/MLD snooping, disable VLAN
+	 * tunneling, determine priority by looking at 802.1p and IP
+	 * priority fields (IP prio has precedence), and set STP state
+	 * to Forwarding.
+	 *
+	 * If this is the CPU link, use DSA or EDSA tagging depending
+	 * on which tagging mode was configured.
+	 *
+	 * If this is a link to another switch, use DSA tagging mode.
+	 *
+	 * If this is the upstream port for this switch, enable
+	 * forwarding of unknown unicasts and multicasts.
+	 */
+	reg = 0;
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+	    mv88e6xxx_6095_family(ds) || mv88e6xxx_6065_family(ds) ||
+	    mv88e6xxx_6185_family(ds))
+		reg = PORT_CONTROL_IGMP_MLD_SNOOP |
+		PORT_CONTROL_USE_TAG | PORT_CONTROL_USE_IP |
+		PORT_CONTROL_STATE_FORWARDING;
+	if (dsa_is_cpu_port(ds, port)) {
+		if (mv88e6xxx_6095_family(ds) || mv88e6xxx_6185_family(ds))
+			reg |= PORT_CONTROL_DSA_TAG;
+		if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+		    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds)) {
+			if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA)
+				reg |= PORT_CONTROL_FRAME_ETHER_TYPE_DSA;
+			else
+				reg |= PORT_CONTROL_FRAME_MODE_DSA;
+		}
+
+		if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+		    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+		    mv88e6xxx_6095_family(ds) || mv88e6xxx_6065_family(ds) ||
+		    mv88e6xxx_6185_family(ds)) {
+			if (ds->dst->tag_protocol == DSA_TAG_PROTO_EDSA)
+				reg |= PORT_CONTROL_EGRESS_ADD_TAG;
+		}
+	}
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+	    mv88e6xxx_6095_family(ds) || mv88e6xxx_6065_family(ds)) {
+		if (ds->dsa_port_mask & (1 << port))
+			reg |= PORT_CONTROL_FRAME_MODE_DSA;
+		if (port == dsa_upstream_port(ds))
+			reg |= PORT_CONTROL_FORWARD_UNKNOWN |
+				PORT_CONTROL_FORWARD_UNKNOWN_MC;
+	}
+	if (reg) {
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_CONTROL, reg);
+		if (ret)
+			goto abort;
+	}
+
+	/* Port Control 2: don't force a good FCS, set the maximum
+	 * frame size to 10240 bytes, don't let the switch add or
+	 * strip 802.1q tags, don't discard tagged or untagged frames
+	 * on this port, do a destination address lookup on all
+	 * received packets as usual, disable ARP mirroring and don't
+	 * send a copy of all transmitted/received frames on this port
+	 * to the CPU.
+	 */
+	reg = 0;
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+	    mv88e6xxx_6095_family(ds))
+		reg = PORT_CONTROL_2_MAP_DA;
+
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds))
+		reg |= PORT_CONTROL_2_JUMBO_10240;
+
+	if (mv88e6xxx_6095_family(ds) || mv88e6xxx_6185_family(ds)) {
+		/* Set the upstream port this port should use */
+		reg |= dsa_upstream_port(ds);
+		/* enable forwarding of unknown multicast addresses to
+		 * the upstream port
+		 */
+		if (port == dsa_upstream_port(ds))
+			reg |= PORT_CONTROL_2_FORWARD_UNKNOWN;
+	}
+
+	if (reg) {
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_CONTROL_2, reg);
+		if (ret)
+			goto abort;
+	}
+
+	/* Port Association Vector: when learning source addresses
+	 * of packets, add the address to the address database using
+	 * a port bitmap that has only the bit for this port set and
+	 * the other bits clear.
+	 */
+	ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_ASSOC_VECTOR,
+				   1 << port);
+	if (ret)
+		goto abort;
+
+	/* Egress rate control 2: disable egress rate control. */
+	ret = _mv88e6xxx_reg_write(ds, REG_PORT(port), PORT_RATE_CONTROL_2,
+				   0x0000);
+	if (ret)
+		goto abort;
+
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds)) {
+		/* Do not limit the period of time that this port can
+		 * be paused for by the remote end or the period of
+		 * time that this port can pause the remote end.
+		 */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_PAUSE_CTRL, 0x0000);
+		if (ret)
+			goto abort;
+
+		/* Port ATU control: disable limiting the number of
+		 * address database entries that this port is allowed
+		 * to use.
+		 */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_ATU_CONTROL, 0x0000);
+		/* Priority Override: disable DA, SA and VTU priority
+		 * override.
+		 */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_PRI_OVERRIDE, 0x0000);
+		if (ret)
+			goto abort;
+
+		/* Port Ethertype: use the Ethertype DSA Ethertype
+		 * value.
+		 */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_ETH_TYPE, ETH_P_EDSA);
+		if (ret)
+			goto abort;
+		/* Tag Remap: use an identity 802.1p prio -> switch
+		 * prio mapping.
+		 */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_TAG_REGMAP_0123, 0x3210);
+		if (ret)
+			goto abort;
+
+		/* Tag Remap 2: use an identity 802.1p prio -> switch
+		 * prio mapping.
+		 */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_TAG_REGMAP_4567, 0x7654);
+		if (ret)
+			goto abort;
+	}
+
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+	    mv88e6xxx_6185_family(ds) || mv88e6xxx_6095_family(ds)) {
+		/* Rate Control: disable ingress rate limiting. */
+		ret = _mv88e6xxx_reg_write(ds, REG_PORT(port),
+					   PORT_RATE_CONTROL, 0x0001);
+		if (ret)
+			goto abort;
+	}
+
 	/* Port Control 1: disable trunking, disable sending
 	 * learning messages to this port.
 	 */
@@ -1298,6 +1565,104 @@ int mv88e6xxx_setup_common(struct dsa_switch *ds)
 	return 0;
 }
 
+int mv88e6xxx_setup_global(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+	int i;
+
+	/* Set the default address aging time to 5 minutes, and
+	 * enable address learn messages to be sent to all message
+	 * ports.
+	 */
+	REG_WRITE(REG_GLOBAL, GLOBAL_ATU_CONTROL,
+		  0x0140 | GLOBAL_ATU_CONTROL_LEARN2ALL);
+
+	/* Configure the IP ToS mapping registers. */
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_0, 0x0000);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_1, 0x0000);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_2, 0x5555);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_3, 0x5555);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_4, 0xaaaa);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_5, 0xaaaa);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_6, 0xffff);
+	REG_WRITE(REG_GLOBAL, GLOBAL_IP_PRI_7, 0xffff);
+
+	/* Configure the IEEE 802.1p priority mapping register. */
+	REG_WRITE(REG_GLOBAL, GLOBAL_IEEE_PRI, 0xfa41);
+
+	/* Send all frames with destination addresses matching
+	 * 01:80:c2:00:00:0x to the CPU port.
+	 */
+	REG_WRITE(REG_GLOBAL2, GLOBAL2_MGMT_EN_0X, 0xffff);
+
+	/* Ignore removed tag data on doubly tagged packets, disable
+	 * flow control messages, force flow control priority to the
+	 * highest, and send all special multicast frames to the CPU
+	 * port at the highest priority.
+	 */
+	REG_WRITE(REG_GLOBAL2, GLOBAL2_SWITCH_MGMT,
+		  0x7 | GLOBAL2_SWITCH_MGMT_RSVD2CPU | 0x70 |
+		  GLOBAL2_SWITCH_MGMT_FORCE_FLOW_CTRL_PRI);
+
+	/* Program the DSA routing table. */
+	for (i = 0; i < 32; i++) {
+		int nexthop = 0x1f;
+
+		if (ds->pd->rtable &&
+		    i != ds->index && i < ds->dst->pd->nr_chips)
+			nexthop = ds->pd->rtable[i] & 0x1f;
+
+		REG_WRITE(REG_GLOBAL2, GLOBAL2_DEVICE_MAPPING,
+			  GLOBAL2_DEVICE_MAPPING_UPDATE |
+			  (i << GLOBAL2_DEVICE_MAPPING_TARGET_SHIFT) |
+			  nexthop);
+	}
+
+	/* Clear all trunk masks. */
+	for (i = 0; i < 8; i++)
+		REG_WRITE(REG_GLOBAL2, GLOBAL2_TRUNK_MASK,
+			  0x8000 | (i << GLOBAL2_TRUNK_MASK_NUM_SHIFT) |
+			  ((1 << ps->num_ports) - 1));
+
+	/* Clear all trunk mappings. */
+	for (i = 0; i < 16; i++)
+		REG_WRITE(REG_GLOBAL2, GLOBAL2_TRUNK_MAPPING,
+			  GLOBAL2_TRUNK_MAPPING_UPDATE |
+			  (i << GLOBAL2_TRUNK_MAPPING_ID_SHIFT));
+
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds)) {
+		/* Send all frames with destination addresses matching
+		 * 01:80:c2:00:00:2x to the CPU port.
+		 */
+		REG_WRITE(REG_GLOBAL2, GLOBAL2_MGMT_EN_2X, 0xffff);
+
+		/* Initialise cross-chip port VLAN table to reset
+		 * defaults.
+		 */
+		REG_WRITE(REG_GLOBAL2, GLOBAL2_PVT_ADDR, 0x9000);
+
+		/* Clear the priority override table. */
+		for (i = 0; i < 16; i++)
+			REG_WRITE(REG_GLOBAL2, GLOBAL2_PRIO_OVERRIDE,
+				  0x8000 | (i << 8));
+	}
+
+	if (mv88e6xxx_6352_family(ds) || mv88e6xxx_6351_family(ds) ||
+	    mv88e6xxx_6165_family(ds) || mv88e6xxx_6097_family(ds) ||
+	    mv88e6xxx_6185_family(ds) || mv88e6xxx_6095_family(ds)) {
+		/* Disable ingress rate limiting by resetting all
+		 * ingress rate limit registers to their initial
+		 * state.
+		 */
+		for (i = 0; i < ps->num_ports; i++)
+			REG_WRITE(REG_GLOBAL2, GLOBAL2_INGRESS_OP,
+				  0x9000 | (i << 8));
+	}
+
+	return 0;
+}
+
 int mv88e6xxx_switch_reset(struct dsa_switch *ds, bool ppu_active)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index e045154f3364..2aa1a6b31980 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -40,9 +40,31 @@
 #define PORT_STATUS_TX_PAUSED	BIT(5)
 #define PORT_STATUS_FLOW_CTRL	BIT(4)
 #define PORT_PCS_CTRL		0x01
+#define PORT_PCS_CTRL_FC		BIT(7)
+#define PORT_PCS_CTRL_FORCE_FC		BIT(6)
+#define PORT_PCS_CTRL_LINK_UP		BIT(5)
+#define PORT_PCS_CTRL_FORCE_LINK	BIT(4)
+#define PORT_PCS_CTRL_DUPLEX_FULL	BIT(3)
+#define PORT_PCS_CTRL_FORCE_DUPLEX	BIT(2)
+#define PORT_PCS_CTRL_10		0x00
+#define PORT_PCS_CTRL_100		0x01
+#define PORT_PCS_CTRL_1000		0x02
+#define PORT_PCS_CTRL_UNFORCED		0x03
+#define PORT_PAUSE_CTRL		0x02
 #define PORT_SWITCH_ID		0x03
+#define PORT_SWITCH_ID_6031	0x0310
+#define PORT_SWITCH_ID_6035	0x0350
+#define PORT_SWITCH_ID_6046	0x0480
+#define PORT_SWITCH_ID_6061	0x0610
+#define PORT_SWITCH_ID_6065	0x0650
 #define PORT_SWITCH_ID_6085	0x04a0
+#define PORT_SWITCH_ID_6092	0x0970
 #define PORT_SWITCH_ID_6095	0x0950
+#define PORT_SWITCH_ID_6096	0x0980
+#define PORT_SWITCH_ID_6097	0x0990
+#define PORT_SWITCH_ID_6108	0x1070
+#define PORT_SWITCH_ID_6121	0x1040
+#define PORT_SWITCH_ID_6122	0x1050
 #define PORT_SWITCH_ID_6123	0x1210
 #define PORT_SWITCH_ID_6123_A1	0x1212
 #define PORT_SWITCH_ID_6123_A2	0x1213
@@ -58,13 +80,38 @@
 #define PORT_SWITCH_ID_6165_A2	0x1653
 #define PORT_SWITCH_ID_6171	0x1710
 #define PORT_SWITCH_ID_6172	0x1720
+#define PORT_SWITCH_ID_6175	0x1750
 #define PORT_SWITCH_ID_6176	0x1760
 #define PORT_SWITCH_ID_6182	0x1a60
 #define PORT_SWITCH_ID_6185	0x1a70
+#define PORT_SWITCH_ID_6240	0x2400
+#define PORT_SWITCH_ID_6320	0x1250
+#define PORT_SWITCH_ID_6350	0x3710
+#define PORT_SWITCH_ID_6351	0x3750
 #define PORT_SWITCH_ID_6352	0x3520
 #define PORT_SWITCH_ID_6352_A0	0x3521
 #define PORT_SWITCH_ID_6352_A1	0x3522
 #define PORT_CONTROL		0x04
+#define PORT_CONTROL_USE_CORE_TAG	BIT(15)
+#define PORT_CONTROL_DROP_ON_LOCK	BIT(14)
+#define PORT_CONTROL_EGRESS_UNMODIFIED	(0x0 << 12)
+#define PORT_CONTROL_EGRESS_UNTAGGED	(0x1 << 12)
+#define PORT_CONTROL_EGRESS_TAGGED	(0x2 << 12)
+#define PORT_CONTROL_EGRESS_ADD_TAG	(0x3 << 12)
+#define PORT_CONTROL_HEADER		BIT(11)
+#define PORT_CONTROL_IGMP_MLD_SNOOP	BIT(10)
+#define PORT_CONTROL_DOUBLE_TAG		BIT(9)
+#define PORT_CONTROL_FRAME_MODE_NORMAL		(0x0 << 8)
+#define PORT_CONTROL_FRAME_MODE_DSA		(0x1 << 8)
+#define PORT_CONTROL_FRAME_MODE_PROVIDER	(0x2 << 8)
+#define PORT_CONTROL_FRAME_ETHER_TYPE_DSA	(0x3 << 8)
+#define PORT_CONTROL_DSA_TAG		BIT(8)
+#define PORT_CONTROL_VLAN_TUNNEL	BIT(7)
+#define PORT_CONTROL_TAG_IF_BOTH	BIT(6)
+#define PORT_CONTROL_USE_IP		BIT(5)
+#define PORT_CONTROL_USE_TAG		BIT(4)
+#define PORT_CONTROL_FORWARD_UNKNOWN_MC	BIT(3)
+#define PORT_CONTROL_FORWARD_UNKNOWN	BIT(2)
 #define PORT_CONTROL_STATE_MASK		0x03
 #define PORT_CONTROL_STATE_DISABLED	0x00
 #define PORT_CONTROL_STATE_BLOCKING	0x01
@@ -74,15 +121,32 @@
 #define PORT_BASE_VLAN		0x06
 #define PORT_DEFAULT_VLAN	0x07
 #define PORT_CONTROL_2		0x08
+#define PORT_CONTROL_2_IGNORE_FCS	BIT(15)
+#define PORT_CONTROL_2_VTU_PRI_OVERRIDE	BIT(14)
+#define PORT_CONTROL_2_SA_PRIO_OVERRIDE	BIT(13)
+#define PORT_CONTROL_2_DA_PRIO_OVERRIDE	BIT(12)
+#define PORT_CONTROL_2_JUMBO_1522	(0x00 << 12)
+#define PORT_CONTROL_2_JUMBO_2048	(0x01 << 12)
+#define PORT_CONTROL_2_JUMBO_10240	(0x02 << 12)
+#define PORT_CONTROL_2_DISCARD_TAGGED	BIT(9)
+#define PORT_CONTROL_2_DISCARD_UNTAGGED	BIT(8)
+#define PORT_CONTROL_2_MAP_DA		BIT(7)
+#define PORT_CONTROL_2_DEFAULT_FORWARD	BIT(6)
+#define PORT_CONTROL_2_FORWARD_UNKNOWN	BIT(6)
+#define PORT_CONTROL_2_EGRESS_MONITOR	BIT(5)
+#define PORT_CONTROL_2_INGRESS_MONITOR	BIT(4)
 #define PORT_RATE_CONTROL	0x09
 #define PORT_RATE_CONTROL_2	0x0a
 #define PORT_ASSOC_VECTOR	0x0b
+#define PORT_ATU_CONTROL	0x0c
+#define PORT_PRI_OVERRIDE	0x0d
+#define PORT_ETH_TYPE		0x0f
 #define PORT_IN_DISCARD_LO	0x10
 #define PORT_IN_DISCARD_HI	0x11
 #define PORT_IN_FILTERED	0x12
 #define PORT_OUT_FILTERED	0x13
-#define PORT_TAG_REGMAP_0123	0x19
-#define PORT_TAG_REGMAP_4567	0x1a
+#define PORT_TAG_REGMAP_0123	0x18
+#define PORT_TAG_REGMAP_4567	0x19
 
 #define REG_GLOBAL		0x1b
 #define GLOBAL_STATUS		0x00
@@ -102,7 +166,7 @@
 #define GLOBAL_CONTROL_DISCARD_EXCESS	BIT(13) /* 6352 */
 #define GLOBAL_CONTROL_SCHED_PRIO	BIT(11) /* 6152 */
 #define GLOBAL_CONTROL_MAX_FRAME_1632	BIT(10) /* 6152 */
-#define GLOBAL_CONTROL_RELOAD_EEPROM	BIT(9)  /* 6152 */
+#define GLOBAL_CONTROL_RELOAD_EEPROM	BIT(9)	/* 6152 */
 #define GLOBAL_CONTROL_DEVICE_EN	BIT(7)
 #define GLOBAL_CONTROL_STATS_DONE_EN	BIT(6)
 #define GLOBAL_CONTROL_VTU_PROBLEM_EN	BIT(5)
@@ -117,6 +181,7 @@
 #define GLOBAL_VTU_DATA_4_7	0x08
 #define GLOBAL_VTU_DATA_8_11	0x09
 #define GLOBAL_ATU_CONTROL	0x0a
+#define GLOBAL_ATU_CONTROL_LEARN2ALL	BIT(3)
 #define GLOBAL_ATU_OP		0x0b
 #define GLOBAL_ATU_OP_BUSY	BIT(15)
 #define GLOBAL_ATU_OP_NOP		(0 << 12)
@@ -172,9 +237,20 @@
 #define GLOBAL2_MGMT_EN_0X	0x03
 #define GLOBAL2_FLOW_CONTROL	0x04
 #define GLOBAL2_SWITCH_MGMT	0x05
+#define GLOBAL2_SWITCH_MGMT_USE_DOUBLE_TAG_DATA	BIT(15)
+#define GLOBAL2_SWITCH_MGMT_PREVENT_LOOPS	BIT(14)
+#define GLOBAL2_SWITCH_MGMT_FLOW_CONTROL_MSG	BIT(13)
+#define GLOBAL2_SWITCH_MGMT_FORCE_FLOW_CTRL_PRI	BIT(7)
+#define GLOBAL2_SWITCH_MGMT_RSVD2CPU		BIT(3)
 #define GLOBAL2_DEVICE_MAPPING	0x06
+#define GLOBAL2_DEVICE_MAPPING_UPDATE		BIT(15)
+#define GLOBAL2_DEVICE_MAPPING_TARGET_SHIFT	8
 #define GLOBAL2_TRUNK_MASK	0x07
+#define GLOBAL2_TRUNK_MASK_UPDATE		BIT(15)
+#define GLOBAL2_TRUNK_MASK_NUM_SHIFT		12
 #define GLOBAL2_TRUNK_MAPPING	0x08
+#define GLOBAL2_TRUNK_MAPPING_UPDATE		BIT(15)
+#define GLOBAL2_TRUNK_MAPPING_ID_SHIFT		11
 #define GLOBAL2_INGRESS_OP	0x09
 #define GLOBAL2_INGRESS_DATA	0x0a
 #define GLOBAL2_PVT_ADDR	0x0b
@@ -260,14 +336,14 @@ struct mv88e6xxx_hw_stat {
 };
 
 int mv88e6xxx_switch_reset(struct dsa_switch *ds, bool ppu_active);
-int mv88e6xxx_setup_port_common(struct dsa_switch *ds, int port);
+int mv88e6xxx_setup_port(struct dsa_switch *ds, int port);
 int mv88e6xxx_setup_common(struct dsa_switch *ds);
+int mv88e6xxx_setup_global(struct dsa_switch *ds);
 int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);
 int mv88e6xxx_reg_read(struct dsa_switch *ds, int addr, int reg);
 int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
 			  int reg, u16 val);
 int mv88e6xxx_reg_write(struct dsa_switch *ds, int addr, int reg, u16 val);
-int mv88e6xxx_config_prio(struct dsa_switch *ds);
 int mv88e6xxx_set_addr_direct(struct dsa_switch *ds, u8 *addr);
 int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr);
 int mv88e6xxx_phy_read(struct dsa_switch *ds, int port, int regnum);

From dbde9e6667166f17d6d70a08becb05c596cb8fb5 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:48 +0200
Subject: [PATCH 02/10] net: dsa: Centralize setting up ports

Now that setting up a port is identical for all switches, centralisers
the code looping over all the ports to set them up.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6123_61_65.c |  9 +--------
 drivers/net/dsa/mv88e6131.c       |  9 +--------
 drivers/net/dsa/mv88e6171.c       | 12 +-----------
 drivers/net/dsa/mv88e6352.c       |  9 +--------
 drivers/net/dsa/mv88e6xxx.c       | 16 +++++++++++++++-
 drivers/net/dsa/mv88e6xxx.h       |  2 +-
 6 files changed, 20 insertions(+), 37 deletions(-)

diff --git a/drivers/net/dsa/mv88e6123_61_65.c b/drivers/net/dsa/mv88e6123_61_65.c
index 73325ab520f2..c7c8b1e232ef 100644
--- a/drivers/net/dsa/mv88e6123_61_65.c
+++ b/drivers/net/dsa/mv88e6123_61_65.c
@@ -83,7 +83,6 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 static int mv88e6123_61_65_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-	int i;
 	int ret;
 
 	ret = mv88e6xxx_setup_common(ds);
@@ -110,13 +109,7 @@ static int mv88e6123_61_65_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < ps->num_ports; i++) {
-		ret = mv88e6xxx_setup_port(ds, i);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
+	return mv88e6xxx_setup_ports(ds);
 }
 
 struct dsa_switch_driver mv88e6123_61_65_switch_driver = {
diff --git a/drivers/net/dsa/mv88e6131.c b/drivers/net/dsa/mv88e6131.c
index 310c1cf37830..1a5a15bf16df 100644
--- a/drivers/net/dsa/mv88e6131.c
+++ b/drivers/net/dsa/mv88e6131.c
@@ -86,7 +86,6 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 static int mv88e6131_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-	int i;
 	int ret;
 
 	ret = mv88e6xxx_setup_common(ds);
@@ -118,13 +117,7 @@ static int mv88e6131_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < ps->num_ports; i++) {
-		ret = mv88e6xxx_setup_port(ds, i);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
+	return mv88e6xxx_setup_ports(ds);
 }
 
 static int mv88e6131_port_to_phy_addr(struct dsa_switch *ds, int port)
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 2b733f0cd6b9..a036d0d15a13 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -69,7 +69,6 @@ static int mv88e6171_setup_global(struct dsa_switch *ds)
 static int mv88e6171_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-	int i;
 	int ret;
 
 	ret = mv88e6xxx_setup_common(ds);
@@ -86,16 +85,7 @@ static int mv88e6171_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < ps->num_ports; i++) {
-		if (!(dsa_is_cpu_port(ds, i) || ds->phys_port_mask & (1 << i)))
-			continue;
-
-		ret = mv88e6xxx_setup_port(ds, i);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
+	return mv88e6xxx_setup_ports(ds);
 }
 
 static int mv88e6171_get_eee(struct dsa_switch *ds, int port,
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index b32ec3e9bd6d..41d113749878 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -136,7 +136,6 @@ static int mv88e6352_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret;
-	int i;
 
 	ret = mv88e6xxx_setup_common(ds);
 	if (ret < 0)
@@ -154,13 +153,7 @@ static int mv88e6352_setup(struct dsa_switch *ds)
 	if (ret < 0)
 		return ret;
 
-	for (i = 0; i < ps->num_ports; i++) {
-		ret = mv88e6xxx_setup_port(ds, i);
-		if (ret < 0)
-			return ret;
-	}
-
-	return 0;
+	return mv88e6xxx_setup_ports(ds);
 }
 
 static int mv88e6352_read_eeprom_word(struct dsa_switch *ds, int addr)
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 84496066f21b..f38d8dfa934a 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -1309,7 +1309,7 @@ static void mv88e6xxx_bridge_work(struct work_struct *work)
 	}
 }
 
-int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
+static int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret, fid;
@@ -1548,6 +1548,20 @@ int mv88e6xxx_setup_port(struct dsa_switch *ds, int port)
 	return ret;
 }
 
+int mv88e6xxx_setup_ports(struct dsa_switch *ds)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+	int ret;
+	int i;
+
+	for (i = 0; i < ps->num_ports; i++) {
+		ret = mv88e6xxx_setup_port(ds, i);
+		if (ret < 0)
+			return ret;
+	}
+	return 0;
+}
+
 int mv88e6xxx_setup_common(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 2aa1a6b31980..46c5ea3801df 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -336,7 +336,7 @@ struct mv88e6xxx_hw_stat {
 };
 
 int mv88e6xxx_switch_reset(struct dsa_switch *ds, bool ppu_active);
-int mv88e6xxx_setup_port(struct dsa_switch *ds, int port);
+int mv88e6xxx_setup_ports(struct dsa_switch *ds);
 int mv88e6xxx_setup_common(struct dsa_switch *ds);
 int mv88e6xxx_setup_global(struct dsa_switch *ds);
 int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg);

From 15966a2a76f57ee45479cc3e7d28dd105f09260a Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:49 +0200
Subject: [PATCH 03/10] net: dsa: Converting remaining registers to mnemonics

Use defines for registers, shifts and bits in the remaining register
accesses in the individual drivers, in order to aid readability.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6123_61_65.c | 11 ++++++++---
 drivers/net/dsa/mv88e6131.c       | 26 ++++++++++++++++++++------
 drivers/net/dsa/mv88e6171.c       | 26 +++++++++++++++++++++-----
 drivers/net/dsa/mv88e6352.c       | 10 ++++++++--
 drivers/net/dsa/mv88e6xxx.h       | 12 ++++++++++++
 5 files changed, 69 insertions(+), 16 deletions(-)

diff --git a/drivers/net/dsa/mv88e6123_61_65.c b/drivers/net/dsa/mv88e6123_61_65.c
index c7c8b1e232ef..71a29a7ce538 100644
--- a/drivers/net/dsa/mv88e6123_61_65.c
+++ b/drivers/net/dsa/mv88e6123_61_65.c
@@ -54,7 +54,9 @@ static char *mv88e6123_61_65_probe(struct device *host_dev, int sw_addr)
 
 static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 {
+	u32 upstream_port = dsa_upstream_port(ds);
 	int ret;
+	u32 reg;
 
 	ret = mv88e6xxx_setup_global(ds);
 	if (ret)
@@ -64,18 +66,21 @@ static int mv88e6123_61_65_setup_global(struct dsa_switch *ds)
 	 * external PHYs to poll), don't discard packets with
 	 * excessive collisions, and mask all interrupt sources.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x04, 0x0000);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL, 0x0000);
 
 	/* Configure the upstream port, and configure the upstream
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1110));
+	reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
+	REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
 
 	/* Disable remote management for now, and set the switch's
 	 * DSA device number.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2, ds->index & 0x1f);
 
 	return 0;
 }
diff --git a/drivers/net/dsa/mv88e6131.c b/drivers/net/dsa/mv88e6131.c
index 1a5a15bf16df..765de63f59bd 100644
--- a/drivers/net/dsa/mv88e6131.c
+++ b/drivers/net/dsa/mv88e6131.c
@@ -44,7 +44,9 @@ static char *mv88e6131_probe(struct device *host_dev, int sw_addr)
 
 static int mv88e6131_setup_global(struct dsa_switch *ds)
 {
+	u32 upstream_port = dsa_upstream_port(ds);
 	int ret;
+	u32 reg;
 
 	ret = mv88e6xxx_setup_global(ds);
 	if (ret)
@@ -55,30 +57,42 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 	 * to arbitrate between packet queues, set the maximum frame
 	 * size to 1632, and mask all interrupt sources.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x04, 0x4400);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL,
+		  GLOBAL_CONTROL_PPU_ENABLE | GLOBAL_CONTROL_MAX_FRAME_1632);
 
 	/* Set the VLAN ethertype to 0x8100. */
-	REG_WRITE(REG_GLOBAL, 0x19, 0x8100);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CORE_TAG_TYPE, 0x8100);
 
 	/* Disable ARP mirroring, and configure the upstream port as
 	 * the port to which ingress and egress monitor frames are to
 	 * be sent.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1100) | 0x00f0);
+	reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
+		GLOBAL_MONITOR_CONTROL_ARP_DISABLED;
+	REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
 
 	/* Disable cascade port functionality unless this device
 	 * is used in a cascade configuration, and set the switch's
 	 * DSA device number.
 	 */
 	if (ds->dst->pd->nr_chips > 1)
-		REG_WRITE(REG_GLOBAL, 0x1c, 0xf000 | (ds->index & 0x1f));
+		REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2,
+			  GLOBAL_CONTROL_2_MULTIPLE_CASCADE |
+			  (ds->index & 0x1f));
 	else
-		REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 | (ds->index & 0x1f));
+		REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2,
+			  GLOBAL_CONTROL_2_NO_CASCADE |
+			  (ds->index & 0x1f));
 
 	/* Force the priority of IGMP/MLD snoop frames and ARP frames
 	 * to the highest setting.
 	 */
-	REG_WRITE(REG_GLOBAL2, 0x0f, 0x00ff);
+	REG_WRITE(REG_GLOBAL2, GLOBAL2_PRIO_OVERRIDE,
+		  GLOBAL2_PRIO_OVERRIDE_FORCE_SNOOP |
+		  7 << GLOBAL2_PRIO_OVERRIDE_SNOOP_SHIFT |
+		  GLOBAL2_PRIO_OVERRIDE_FORCE_ARP |
+		  7 << GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT);
 
 	return 0;
 }
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index a036d0d15a13..56fad84aded6 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -38,6 +38,7 @@ static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
 
 static int mv88e6171_setup_global(struct dsa_switch *ds)
 {
+	u32 upstream_port = dsa_upstream_port(ds);
 	int ret;
 
 	ret = mv88e6xxx_setup_global(ds);
@@ -47,21 +48,36 @@ static int mv88e6171_setup_global(struct dsa_switch *ds)
 	/* Discard packets with excessive collisions, mask all
 	 * interrupt sources, enable PPU.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x04, 0x6000);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL,
+		  GLOBAL_CONTROL_PPU_ENABLE | GLOBAL_CONTROL_DISCARD_EXCESS);
 
 	/* Configure the upstream port, and configure the upstream
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
 	 */
-	if (REG_READ(REG_PORT(0), 0x03) == 0x1710)
-		REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1111));
+	if (REG_READ(REG_PORT(0), PORT_SWITCH_ID) == PORT_SWITCH_ID_6171)
+		REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL,
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_ARP_SHIFT |
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT);
 	else
-		REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1110));
+		REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL,
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
+			  upstream_port <<
+			  GLOBAL_MONITOR_CONTROL_ARP_SHIFT);
 
 	/* Disable remote management for now, and set the switch's
 	 * DSA device number.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1c, ds->index & 0x1f);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL_2, ds->index & 0x1f);
 
 	return 0;
 }
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index 41d113749878..e9aca7f7945e 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -47,7 +47,9 @@ static char *mv88e6352_probe(struct device *host_dev, int sw_addr)
 
 static int mv88e6352_setup_global(struct dsa_switch *ds)
 {
+	u32 upstream_port = dsa_upstream_port(ds);
 	int ret;
+	u32 reg;
 
 	ret = mv88e6xxx_setup_global(ds);
 	if (ret)
@@ -56,13 +58,17 @@ static int mv88e6352_setup_global(struct dsa_switch *ds)
 	/* Discard packets with excessive collisions,
 	 * mask all interrupt sources, enable PPU (bit 14, undocumented).
 	 */
-	REG_WRITE(REG_GLOBAL, 0x04, 0x6000);
+	REG_WRITE(REG_GLOBAL, GLOBAL_CONTROL,
+		  GLOBAL_CONTROL_PPU_ENABLE | GLOBAL_CONTROL_DISCARD_EXCESS);
 
 	/* Configure the upstream port, and configure the upstream
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
 	 */
-	REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1110));
+	reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT;
+	REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
 
 	/* Disable remote management for now, and set the switch's
 	 * DSA device number.
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 46c5ea3801df..aafcb1a0a616 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -216,7 +216,15 @@
 #define GLOBAL_IEEE_PRI		0x18
 #define GLOBAL_CORE_TAG_TYPE	0x19
 #define GLOBAL_MONITOR_CONTROL	0x1a
+#define GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT	12
+#define GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT	8
+#define GLOBAL_MONITOR_CONTROL_ARP_SHIFT	4
+#define GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT	0
+#define GLOBAL_MONITOR_CONTROL_ARP_DISABLED	(0xf0)
 #define GLOBAL_CONTROL_2	0x1c
+#define GLOBAL_CONTROL_2_NO_CASCADE		0xe000
+#define GLOBAL_CONTROL_2_MULTIPLE_CASCADE	0xf000
+
 #define GLOBAL_STATS_OP		0x1d
 #define GLOBAL_STATS_OP_BUSY	BIT(15)
 #define GLOBAL_STATS_OP_NOP		(0 << 12)
@@ -259,6 +267,10 @@
 #define GLOBAL2_SWITCH_MAC_BUSY BIT(15)
 #define GLOBAL2_ATU_STATS	0x0e
 #define GLOBAL2_PRIO_OVERRIDE	0x0f
+#define GLOBAL2_PRIO_OVERRIDE_FORCE_SNOOP	BIT(7)
+#define GLOBAL2_PRIO_OVERRIDE_SNOOP_SHIFT	4
+#define GLOBAL2_PRIO_OVERRIDE_FORCE_ARP		BIT(3)
+#define GLOBAL2_PRIO_OVERRIDE_ARP_SHIFT		0
 #define GLOBAL2_EEPROM_OP	0x14
 #define GLOBAL2_EEPROM_OP_BUSY	BIT(15)
 #define GLOBAL2_EEPROM_OP_LOAD	BIT(11)

From 1636d88357e9e1675a2f205c0721a574e5372fda Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:50 +0200
Subject: [PATCH 04/10] net: dsa: Move mv88e6172 support into mv88e6352 family
 driver

The mv88e6172 is part of the mv88e6352 family of devices. Move support
for it out of the mv88e6171 driver into the mv88e6352, which results
in some simplifications to the code.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/Kconfig     | 10 +++----
 drivers/net/dsa/mv88e6171.c | 53 +++++--------------------------------
 drivers/net/dsa/mv88e6352.c |  3 +++
 3 files changed, 15 insertions(+), 51 deletions(-)

diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index 18550c7ebe6f..d96f2e24e6a9 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -37,22 +37,22 @@ config NET_DSA_MV88E6123_61_65
 	  ethernet switch chips.
 
 config NET_DSA_MV88E6171
-	tristate "Marvell 88E6171/6172 ethernet switch chip support"
+	tristate "Marvell 88E6171 ethernet switch chip support"
 	depends on NET_DSA
 	select NET_DSA_MV88E6XXX
 	select NET_DSA_TAG_EDSA
 	---help---
-	  This enables support for the Marvell 88E6171/6172 ethernet switch
+	  This enables support for the Marvell 88E6171 ethernet switch
 	  chips.
 
 config NET_DSA_MV88E6352
-	tristate "Marvell 88E6176/88E6352 ethernet switch chip support"
+	tristate "Marvell 88E6172/88E6176/88E6352 ethernet switch chip support"
 	depends on NET_DSA
 	select NET_DSA_MV88E6XXX
 	select NET_DSA_TAG_EDSA
 	---help---
-	  This enables support for the Marvell 88E6176 and 88E6352 ethernet
-	  switch chips.
+	  This enables support for the Marvell 88E6172, 88E6176 and 88E6352
+	  ethernet switch chips.
 
 config NET_DSA_BCM_SF2
 	tristate "Broadcom Starfighter 2 Ethernet switch support"
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 56fad84aded6..132783cc8aea 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -1,4 +1,4 @@
-/* net/dsa/mv88e6171.c - Marvell 88e6171/8826172 switch chip support
+/* net/dsa/mv88e6171.c - Marvell 88e6171 switch chip support
  * Copyright (c) 2008-2009 Marvell Semiconductor
  * Copyright (c) 2014 Claudio Leite <leitec@staticky.com>
  *
@@ -29,8 +29,6 @@ static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
 	if (ret >= 0) {
 		if ((ret & 0xfff0) == PORT_SWITCH_ID_6171)
 			return "Marvell 88E6171";
-		if ((ret & 0xfff0) == PORT_SWITCH_ID_6172)
-			return "Marvell 88E6172";
 	}
 
 	return NULL;
@@ -40,6 +38,7 @@ static int mv88e6171_setup_global(struct dsa_switch *ds)
 {
 	u32 upstream_port = dsa_upstream_port(ds);
 	int ret;
+	u32 reg;
 
 	ret = mv88e6xxx_setup_global(ds);
 	if (ret)
@@ -55,24 +54,11 @@ static int mv88e6171_setup_global(struct dsa_switch *ds)
 	 * port as the port to which ingress and egress monitor frames
 	 * are to be sent.
 	 */
-	if (REG_READ(REG_PORT(0), PORT_SWITCH_ID) == PORT_SWITCH_ID_6171)
-		REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL,
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_ARP_SHIFT |
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT);
-	else
-		REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL,
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
-			  upstream_port <<
-			  GLOBAL_MONITOR_CONTROL_ARP_SHIFT);
+	reg = upstream_port << GLOBAL_MONITOR_CONTROL_INGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_EGRESS_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_ARP_SHIFT |
+		upstream_port << GLOBAL_MONITOR_CONTROL_MIRROR_SHIFT;
+	REG_WRITE(REG_GLOBAL, GLOBAL_MONITOR_CONTROL, reg);
 
 	/* Disable remote management for now, and set the switch's
 	 * DSA device number.
@@ -104,28 +90,6 @@ static int mv88e6171_setup(struct dsa_switch *ds)
 	return mv88e6xxx_setup_ports(ds);
 }
 
-static int mv88e6171_get_eee(struct dsa_switch *ds, int port,
-			     struct ethtool_eee *e)
-{
-	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-
-	if (ps->id == PORT_SWITCH_ID_6172)
-		return mv88e6xxx_get_eee(ds, port, e);
-
-	return -EOPNOTSUPP;
-}
-
-static int mv88e6171_set_eee(struct dsa_switch *ds, int port,
-			     struct phy_device *phydev, struct ethtool_eee *e)
-{
-	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
-
-	if (ps->id == PORT_SWITCH_ID_6172)
-		return mv88e6xxx_set_eee(ds, port, phydev, e);
-
-	return -EOPNOTSUPP;
-}
-
 struct dsa_switch_driver mv88e6171_switch_driver = {
 	.tag_protocol		= DSA_TAG_PROTO_EDSA,
 	.priv_size		= sizeof(struct mv88e6xxx_priv_state),
@@ -138,8 +102,6 @@ struct dsa_switch_driver mv88e6171_switch_driver = {
 	.get_strings		= mv88e6xxx_get_strings,
 	.get_ethtool_stats	= mv88e6xxx_get_ethtool_stats,
 	.get_sset_count		= mv88e6xxx_get_sset_count,
-	.set_eee		= mv88e6171_set_eee,
-	.get_eee		= mv88e6171_get_eee,
 #ifdef CONFIG_NET_DSA_HWMON
 	.get_temp               = mv88e6xxx_get_temp,
 #endif
@@ -154,4 +116,3 @@ struct dsa_switch_driver mv88e6171_switch_driver = {
 };
 
 MODULE_ALIAS("platform:mv88e6171");
-MODULE_ALIAS("platform:mv88e6172");
diff --git a/drivers/net/dsa/mv88e6352.c b/drivers/net/dsa/mv88e6352.c
index e9aca7f7945e..632815c10a40 100644
--- a/drivers/net/dsa/mv88e6352.c
+++ b/drivers/net/dsa/mv88e6352.c
@@ -32,6 +32,8 @@ static char *mv88e6352_probe(struct device *host_dev, int sw_addr)
 
 	ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), PORT_SWITCH_ID);
 	if (ret >= 0) {
+		if ((ret & 0xfff0) == PORT_SWITCH_ID_6172)
+			return "Marvell 88E6172";
 		if ((ret & 0xfff0) == PORT_SWITCH_ID_6176)
 			return "Marvell 88E6176";
 		if (ret == PORT_SWITCH_ID_6352_A0)
@@ -393,3 +395,4 @@ struct dsa_switch_driver mv88e6352_switch_driver = {
 };
 
 MODULE_ALIAS("platform:mv88e6352");
+MODULE_ALIAS("platform:mv88e6172");

From eee7483edbcb17858ac743b154231e26d523a6a5 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:51 +0200
Subject: [PATCH 05/10] net: dsa: mv88e6171: Add other members of the family

The 6171 is one member of the family 6171/6175/6350/6351. Add the
other family members to the driver.

Not tested on these new devices.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/Kconfig     | 6 +++---
 drivers/net/dsa/mv88e6171.c | 9 +++++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index d96f2e24e6a9..7ad0a4d8e475 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -37,13 +37,13 @@ config NET_DSA_MV88E6123_61_65
 	  ethernet switch chips.
 
 config NET_DSA_MV88E6171
-	tristate "Marvell 88E6171 ethernet switch chip support"
+	tristate "Marvell 88E6171/6175/6350/6351 ethernet switch chip support"
 	depends on NET_DSA
 	select NET_DSA_MV88E6XXX
 	select NET_DSA_TAG_EDSA
 	---help---
-	  This enables support for the Marvell 88E6171 ethernet switch
-	  chips.
+	  This enables support for the Marvell 88E6171/6175/6350/6351
+	  ethernet switches chips.
 
 config NET_DSA_MV88E6352
 	tristate "Marvell 88E6172/88E6176/88E6352 ethernet switch chip support"
diff --git a/drivers/net/dsa/mv88e6171.c b/drivers/net/dsa/mv88e6171.c
index 132783cc8aea..1c7808495a9d 100644
--- a/drivers/net/dsa/mv88e6171.c
+++ b/drivers/net/dsa/mv88e6171.c
@@ -29,6 +29,12 @@ static char *mv88e6171_probe(struct device *host_dev, int sw_addr)
 	if (ret >= 0) {
 		if ((ret & 0xfff0) == PORT_SWITCH_ID_6171)
 			return "Marvell 88E6171";
+		if ((ret & 0xfff0) == PORT_SWITCH_ID_6175)
+			return "Marvell 88E6175";
+		if ((ret & 0xfff0) == PORT_SWITCH_ID_6350)
+			return "Marvell 88E6350";
+		if ((ret & 0xfff0) == PORT_SWITCH_ID_6351)
+			return "Marvell 88E6351";
 	}
 
 	return NULL;
@@ -116,3 +122,6 @@ struct dsa_switch_driver mv88e6171_switch_driver = {
 };
 
 MODULE_ALIAS("platform:mv88e6171");
+MODULE_ALIAS("platform:mv88e6175");
+MODULE_ALIAS("platform:mv88e6350");
+MODULE_ALIAS("platform:mv88e6351");

From 1441f4e59695682909bbbb7d5740c3fff326a4c3 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:52 +0200
Subject: [PATCH 06/10] net: dsa: mv88e6131: Add support for mv88e6185

The mv88e6185 is part of the family that the mv88e6131 driver
supports. Add it to the probe function, and set the number of ports.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6131.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/mv88e6131.c b/drivers/net/dsa/mv88e6131.c
index 765de63f59bd..32f4a08e9bc9 100644
--- a/drivers/net/dsa/mv88e6131.c
+++ b/drivers/net/dsa/mv88e6131.c
@@ -37,6 +37,8 @@ static char *mv88e6131_probe(struct device *host_dev, int sw_addr)
 			return "Marvell 88E6131 (B2)";
 		if (ret_masked == PORT_SWITCH_ID_6131)
 			return "Marvell 88E6131";
+		if (ret_masked == PORT_SWITCH_ID_6185)
+			return "Marvell 88E6185";
 	}
 
 	return NULL;
@@ -110,6 +112,7 @@ static int mv88e6131_setup(struct dsa_switch *ds)
 
 	switch (ps->id) {
 	case PORT_SWITCH_ID_6085:
+	case PORT_SWITCH_ID_6185:
 		ps->num_ports = 10;
 		break;
 	case PORT_SWITCH_ID_6095:

From 3898c148589752687524ff552a498a8fb4c80667 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:53 +0200
Subject: [PATCH 07/10] net: dsa: mv88e6xxx: Replace PHY mutex by SMI mutex

The SMI bus is the bottleneck in all switch operations, not the
granularity of locks. Replace the PHY mutex by the SMI mutex to make
the locking concept simpler.

The REG_READ/REG_WRITE macros cannot be used while holding the SMI
mutex, since they try to acquire it. Replace with calls to the
appropriate function which does not try to get the mutex.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6xxx.c | 121 +++++++++++++++++++-----------------
 drivers/net/dsa/mv88e6xxx.h |   1 -
 2 files changed, 63 insertions(+), 59 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index f38d8dfa934a..e974d26c1a03 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -199,20 +199,20 @@ int mv88e6xxx_set_addr_indirect(struct dsa_switch *ds, u8 *addr)
 	return 0;
 }
 
-/* Must be called with phy mutex held */
+/* Must be called with SMI mutex held */
 static int _mv88e6xxx_phy_read(struct dsa_switch *ds, int addr, int regnum)
 {
 	if (addr >= 0)
-		return mv88e6xxx_reg_read(ds, addr, regnum);
+		return _mv88e6xxx_reg_read(ds, addr, regnum);
 	return 0xffff;
 }
 
-/* Must be called with phy mutex held */
+/* Must be called with SMI mutex held */
 static int _mv88e6xxx_phy_write(struct dsa_switch *ds, int addr, int regnum,
 				u16 val)
 {
 	if (addr >= 0)
-		return mv88e6xxx_reg_write(ds, addr, regnum, val);
+		return _mv88e6xxx_reg_write(ds, addr, regnum, val);
 	return 0;
 }
 
@@ -762,7 +762,7 @@ int  mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp)
 
 	*temp = 0;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 
 	ret = _mv88e6xxx_phy_write(ds, 0x0, 0x16, 0x6);
 	if (ret < 0)
@@ -795,19 +795,23 @@ int  mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp)
 
 error:
 	_mv88e6xxx_phy_write(ds, 0x0, 0x16, 0x0);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 #endif /* CONFIG_NET_DSA_HWMON */
 
-static int mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset, u16 mask)
+/* Must be called with SMI lock held */
+static int _mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset,
+			   u16 mask)
 {
 	unsigned long timeout = jiffies + HZ / 10;
 
 	while (time_before(jiffies, timeout)) {
 		int ret;
 
-		ret = REG_READ(reg, offset);
+		ret = _mv88e6xxx_reg_read(ds, reg, offset);
+		if (ret < 0)
+			return ret;
 		if (!(ret & mask))
 			return 0;
 
@@ -816,10 +820,22 @@ static int mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset, u16 mask)
 	return -ETIMEDOUT;
 }
 
-int mv88e6xxx_phy_wait(struct dsa_switch *ds)
+static int mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset, u16 mask)
+{
+	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
+	int ret;
+
+	mutex_lock(&ps->smi_mutex);
+	ret = _mv88e6xxx_wait(ds, reg, offset, mask);
+	mutex_unlock(&ps->smi_mutex);
+
+	return ret;
+}
+
+static int _mv88e6xxx_phy_wait(struct dsa_switch *ds)
 {
-	return mv88e6xxx_wait(ds, REG_GLOBAL2, GLOBAL2_SMI_OP,
-			      GLOBAL2_SMI_OP_BUSY);
+	return _mv88e6xxx_wait(ds, REG_GLOBAL2, GLOBAL2_SMI_OP,
+			       GLOBAL2_SMI_OP_BUSY);
 }
 
 int mv88e6xxx_eeprom_load_wait(struct dsa_switch *ds)
@@ -834,25 +850,6 @@ int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds)
 			      GLOBAL2_EEPROM_OP_BUSY);
 }
 
-/* Must be called with SMI lock held */
-static int _mv88e6xxx_wait(struct dsa_switch *ds, int reg, int offset, u16 mask)
-{
-	unsigned long timeout = jiffies + HZ / 10;
-
-	while (time_before(jiffies, timeout)) {
-		int ret;
-
-		ret = _mv88e6xxx_reg_read(ds, reg, offset);
-		if (ret < 0)
-			return ret;
-		if (!(ret & mask))
-			return 0;
-
-		usleep_range(1000, 2000);
-	}
-	return -ETIMEDOUT;
-}
-
 /* Must be called with SMI lock held */
 static int _mv88e6xxx_atu_wait(struct dsa_switch *ds)
 {
@@ -860,31 +857,40 @@ static int _mv88e6xxx_atu_wait(struct dsa_switch *ds)
 			       GLOBAL_ATU_OP_BUSY);
 }
 
-/* Must be called with phy mutex held */
+/* Must be called with SMI mutex held */
 static int _mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr,
 					int regnum)
 {
 	int ret;
 
-	REG_WRITE(REG_GLOBAL2, GLOBAL2_SMI_OP,
-		  GLOBAL2_SMI_OP_22_READ | (addr << 5) | regnum);
+	ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL2, GLOBAL2_SMI_OP,
+				   GLOBAL2_SMI_OP_22_READ | (addr << 5) |
+				   regnum);
+	if (ret < 0)
+		return ret;
 
-	ret = mv88e6xxx_phy_wait(ds);
+	ret = _mv88e6xxx_phy_wait(ds);
 	if (ret < 0)
 		return ret;
 
-	return REG_READ(REG_GLOBAL2, GLOBAL2_SMI_DATA);
+	return _mv88e6xxx_reg_read(ds, REG_GLOBAL2, GLOBAL2_SMI_DATA);
 }
 
-/* Must be called with phy mutex held */
+/* Must be called with SMI mutex held */
 static int _mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int addr,
 					 int regnum, u16 val)
 {
-	REG_WRITE(REG_GLOBAL2, GLOBAL2_SMI_DATA, val);
-	REG_WRITE(REG_GLOBAL2, GLOBAL2_SMI_OP,
-		  GLOBAL2_SMI_OP_22_WRITE | (addr << 5) | regnum);
+	int ret;
+
+	ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL2, GLOBAL2_SMI_DATA, val);
+	if (ret < 0)
+		return ret;
 
-	return mv88e6xxx_phy_wait(ds);
+	ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL2, GLOBAL2_SMI_OP,
+				   GLOBAL2_SMI_OP_22_WRITE | (addr << 5) |
+				   regnum);
+
+	return _mv88e6xxx_phy_wait(ds);
 }
 
 int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
@@ -892,7 +898,7 @@ int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int reg;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 
 	reg = _mv88e6xxx_phy_read_indirect(ds, port, 16);
 	if (reg < 0)
@@ -901,7 +907,7 @@ int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
 	e->eee_enabled = !!(reg & 0x0200);
 	e->tx_lpi_enabled = !!(reg & 0x0100);
 
-	reg = mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_STATUS);
+	reg = _mv88e6xxx_reg_read(ds, REG_PORT(port), PORT_STATUS);
 	if (reg < 0)
 		goto out;
 
@@ -909,7 +915,7 @@ int mv88e6xxx_get_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
 	reg = 0;
 
 out:
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return reg;
 }
 
@@ -920,7 +926,7 @@ int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
 	int reg;
 	int ret;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 
 	ret = _mv88e6xxx_phy_read_indirect(ds, port, 16);
 	if (ret < 0)
@@ -934,7 +940,7 @@ int mv88e6xxx_set_eee(struct dsa_switch *ds, int port,
 
 	ret = _mv88e6xxx_phy_write_indirect(ds, port, 16, reg);
 out:
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 
 	return ret;
 }
@@ -1568,7 +1574,6 @@ int mv88e6xxx_setup_common(struct dsa_switch *ds)
 
 	mutex_init(&ps->smi_mutex);
 	mutex_init(&ps->stats_mutex);
-	mutex_init(&ps->phy_mutex);
 
 	ps->id = REG_READ(REG_PORT(0), PORT_SWITCH_ID) & 0xfff0;
 
@@ -1722,14 +1727,14 @@ int mv88e6xxx_phy_page_read(struct dsa_switch *ds, int port, int page, int reg)
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 	ret = _mv88e6xxx_phy_write_indirect(ds, port, 0x16, page);
 	if (ret < 0)
 		goto error;
 	ret = _mv88e6xxx_phy_read_indirect(ds, port, reg);
 error:
 	_mv88e6xxx_phy_write_indirect(ds, port, 0x16, 0x0);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 
@@ -1739,7 +1744,7 @@ int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page,
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 	int ret;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 	ret = _mv88e6xxx_phy_write_indirect(ds, port, 0x16, page);
 	if (ret < 0)
 		goto error;
@@ -1747,7 +1752,7 @@ int mv88e6xxx_phy_page_write(struct dsa_switch *ds, int port, int page,
 	ret = _mv88e6xxx_phy_write_indirect(ds, port, reg, val);
 error:
 	_mv88e6xxx_phy_write_indirect(ds, port, 0x16, 0x0);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 
@@ -1770,9 +1775,9 @@ mv88e6xxx_phy_read(struct dsa_switch *ds, int port, int regnum)
 	if (addr < 0)
 		return addr;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 	ret = _mv88e6xxx_phy_read(ds, addr, regnum);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 
@@ -1786,9 +1791,9 @@ mv88e6xxx_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
 	if (addr < 0)
 		return addr;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 	ret = _mv88e6xxx_phy_write(ds, addr, regnum, val);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 
@@ -1802,9 +1807,9 @@ mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int port, int regnum)
 	if (addr < 0)
 		return addr;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 	ret = _mv88e6xxx_phy_read_indirect(ds, addr, regnum);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 
@@ -1819,9 +1824,9 @@ mv88e6xxx_phy_write_indirect(struct dsa_switch *ds, int port, int regnum,
 	if (addr < 0)
 		return addr;
 
-	mutex_lock(&ps->phy_mutex);
+	mutex_lock(&ps->smi_mutex);
 	ret = _mv88e6xxx_phy_write_indirect(ds, addr, regnum, val);
-	mutex_unlock(&ps->phy_mutex);
+	mutex_unlock(&ps->smi_mutex);
 	return ret;
 }
 
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index aafcb1a0a616..e10ccdb4ffbc 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -377,7 +377,6 @@ int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port);
 void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
 			struct ethtool_regs *regs, void *_p);
 int  mv88e6xxx_get_temp(struct dsa_switch *ds, int *temp);
-int mv88e6xxx_phy_wait(struct dsa_switch *ds);
 int mv88e6xxx_eeprom_load_wait(struct dsa_switch *ds);
 int mv88e6xxx_eeprom_busy_wait(struct dsa_switch *ds);
 int mv88e6xxx_phy_read_indirect(struct dsa_switch *ds, int addr, int regnum);

From 31888234b736f455fa27c8e775df38a60241d562 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:54 +0200
Subject: [PATCH 08/10] net: dsa: mv88e6xxx: Replace stats mutex with SMI mutex

The SMI bus is the bottleneck in all switch operations, not the
granularity of locks. Replace the stats mutex by the SMI mutex to make
the locking concept simpler.

The REG_READ/REG_WRITE macros cannot be used while holding the SMI
mutex, since they try to acquire it. Replace with calls to the
appropriate function which does not try to get the mutex.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6xxx.c | 50 ++++++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 23 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index e974d26c1a03..bd033e00c751 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -515,13 +515,14 @@ static bool mv88e6xxx_6352_family(struct dsa_switch *ds)
 	return false;
 }
 
-static int mv88e6xxx_stats_wait(struct dsa_switch *ds)
+/* Must be called with SMI mutex held */
+static int _mv88e6xxx_stats_wait(struct dsa_switch *ds)
 {
 	int ret;
 	int i;
 
 	for (i = 0; i < 10; i++) {
-		ret = REG_READ(REG_GLOBAL, GLOBAL_STATS_OP);
+		ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_OP);
 		if ((ret & GLOBAL_STATS_OP_BUSY) == 0)
 			return 0;
 	}
@@ -529,7 +530,8 @@ static int mv88e6xxx_stats_wait(struct dsa_switch *ds)
 	return -ETIMEDOUT;
 }
 
-static int mv88e6xxx_stats_snapshot(struct dsa_switch *ds, int port)
+/* Must be called with SMI mutex held */
+static int _mv88e6xxx_stats_snapshot(struct dsa_switch *ds, int port)
 {
 	int ret;
 
@@ -537,42 +539,45 @@ static int mv88e6xxx_stats_snapshot(struct dsa_switch *ds, int port)
 		port = (port + 1) << 5;
 
 	/* Snapshot the hardware statistics counters for this port. */
-	REG_WRITE(REG_GLOBAL, GLOBAL_STATS_OP,
-		  GLOBAL_STATS_OP_CAPTURE_PORT |
-		  GLOBAL_STATS_OP_HIST_RX_TX | port);
+	ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_STATS_OP,
+				   GLOBAL_STATS_OP_CAPTURE_PORT |
+				   GLOBAL_STATS_OP_HIST_RX_TX | port);
+	if (ret < 0)
+		return ret;
 
 	/* Wait for the snapshotting to complete. */
-	ret = mv88e6xxx_stats_wait(ds);
+	ret = _mv88e6xxx_stats_wait(ds);
 	if (ret < 0)
 		return ret;
 
 	return 0;
 }
 
-static void mv88e6xxx_stats_read(struct dsa_switch *ds, int stat, u32 *val)
+/* Must be called with SMI mutex held */
+static void _mv88e6xxx_stats_read(struct dsa_switch *ds, int stat, u32 *val)
 {
 	u32 _val;
 	int ret;
 
 	*val = 0;
 
-	ret = mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_STATS_OP,
-				  GLOBAL_STATS_OP_READ_CAPTURED |
-				  GLOBAL_STATS_OP_HIST_RX_TX | stat);
+	ret = _mv88e6xxx_reg_write(ds, REG_GLOBAL, GLOBAL_STATS_OP,
+				   GLOBAL_STATS_OP_READ_CAPTURED |
+				   GLOBAL_STATS_OP_HIST_RX_TX | stat);
 	if (ret < 0)
 		return;
 
-	ret = mv88e6xxx_stats_wait(ds);
+	ret = _mv88e6xxx_stats_wait(ds);
 	if (ret < 0)
 		return;
 
-	ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_COUNTER_32);
+	ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_COUNTER_32);
 	if (ret < 0)
 		return;
 
 	_val = ret << 16;
 
-	ret = mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_COUNTER_01);
+	ret = _mv88e6xxx_reg_read(ds, REG_GLOBAL, GLOBAL_STATS_COUNTER_01);
 	if (ret < 0)
 		return;
 
@@ -655,11 +660,11 @@ static void _mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
 	int ret;
 	int i;
 
-	mutex_lock(&ps->stats_mutex);
+	mutex_lock(&ps->smi_mutex);
 
-	ret = mv88e6xxx_stats_snapshot(ds, port);
+	ret = _mv88e6xxx_stats_snapshot(ds, port);
 	if (ret < 0) {
-		mutex_unlock(&ps->stats_mutex);
+		mutex_unlock(&ps->smi_mutex);
 		return;
 	}
 
@@ -676,8 +681,8 @@ static void _mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
 				goto error;
 			low = ret;
 			if (s->sizeof_stat == 4) {
-				ret = mv88e6xxx_reg_read(ds, REG_PORT(port),
-							 s->reg - 0x100 + 1);
+				ret = _mv88e6xxx_reg_read(ds, REG_PORT(port),
+							  s->reg - 0x100 + 1);
 				if (ret < 0)
 					goto error;
 				high = ret;
@@ -685,14 +690,14 @@ static void _mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
 			data[i] = (((u64)high) << 16) | low;
 			continue;
 		}
-		mv88e6xxx_stats_read(ds, s->reg, &low);
+		_mv88e6xxx_stats_read(ds, s->reg, &low);
 		if (s->sizeof_stat == 8)
-			mv88e6xxx_stats_read(ds, s->reg + 1, &high);
+			_mv88e6xxx_stats_read(ds, s->reg + 1, &high);
 
 		data[i] = (((u64)high) << 32) | low;
 	}
 error:
-	mutex_unlock(&ps->stats_mutex);
+	mutex_unlock(&ps->smi_mutex);
 }
 
 /* All the statistics in the table */
@@ -1573,7 +1578,6 @@ int mv88e6xxx_setup_common(struct dsa_switch *ds)
 	struct mv88e6xxx_priv_state *ps = ds_to_priv(ds);
 
 	mutex_init(&ps->smi_mutex);
-	mutex_init(&ps->stats_mutex);
 
 	ps->id = REG_READ(REG_PORT(0), PORT_SWITCH_ID) & 0xfff0;
 

From 16fe24fc43e8d32b76030c79c151c7db691865f6 Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:55 +0200
Subject: [PATCH 09/10] net: dsa: mv88e6xxx: Fix false positive lockdep splat

DSA can have nested MDIO busses, where the Ethernet MDIO bus is used
to access an MDIO bus within the switch which has the PHYs connected
to it. This nesting causes lockdep to give false positives. Use
mutex_lock_nested() to avoid this.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/dsa/mv88e6xxx.c | 46 +++++++++++++++++++++++++++++--------
 1 file changed, 37 insertions(+), 9 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index bd033e00c751..56ecbe49eb86 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -19,6 +19,34 @@
 #include <net/dsa.h>
 #include "mv88e6xxx.h"
 
+/* MDIO bus access can be nested in the case of PHYs connected to the
+ * internal MDIO bus of the switch, which is accessed via MDIO bus of
+ * the Ethernet interface. Avoid lockdep false positives by using
+ * mutex_lock_nested().
+ */
+static int mv88e6xxx_mdiobus_read(struct mii_bus *bus, int addr, u32 regnum)
+{
+	int ret;
+
+	mutex_lock_nested(&bus->mdio_lock, SINGLE_DEPTH_NESTING);
+	ret = bus->read(bus, addr, regnum);
+	mutex_unlock(&bus->mdio_lock);
+
+	return ret;
+}
+
+static int mv88e6xxx_mdiobus_write(struct mii_bus *bus, int addr, u32 regnum,
+				   u16 val)
+{
+	int ret;
+
+	mutex_lock_nested(&bus->mdio_lock, SINGLE_DEPTH_NESTING);
+	ret = bus->write(bus, addr, regnum, val);
+	mutex_unlock(&bus->mdio_lock);
+
+	return ret;
+}
+
 /* If the switch's ADDR[4:0] strap pins are strapped to zero, it will
  * use all 32 SMI bus addresses on its SMI bus, and all switch registers
  * will be directly accessible on some {device address,register address}
@@ -33,7 +61,7 @@ static int mv88e6xxx_reg_wait_ready(struct mii_bus *bus, int sw_addr)
 	int i;
 
 	for (i = 0; i < 16; i++) {
-		ret = mdiobus_read(bus, sw_addr, SMI_CMD);
+		ret = mv88e6xxx_mdiobus_read(bus, sw_addr, SMI_CMD);
 		if (ret < 0)
 			return ret;
 
@@ -49,7 +77,7 @@ int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg)
 	int ret;
 
 	if (sw_addr == 0)
-		return mdiobus_read(bus, addr, reg);
+		return mv88e6xxx_mdiobus_read(bus, addr, reg);
 
 	/* Wait for the bus to become free. */
 	ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
@@ -57,8 +85,8 @@ int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg)
 		return ret;
 
 	/* Transmit the read command. */
-	ret = mdiobus_write(bus, sw_addr, SMI_CMD,
-			    SMI_CMD_OP_22_READ | (addr << 5) | reg);
+	ret = mv88e6xxx_mdiobus_write(bus, sw_addr, SMI_CMD,
+				      SMI_CMD_OP_22_READ | (addr << 5) | reg);
 	if (ret < 0)
 		return ret;
 
@@ -68,7 +96,7 @@ int __mv88e6xxx_reg_read(struct mii_bus *bus, int sw_addr, int addr, int reg)
 		return ret;
 
 	/* Read the data. */
-	ret = mdiobus_read(bus, sw_addr, SMI_DATA);
+	ret = mv88e6xxx_mdiobus_read(bus, sw_addr, SMI_DATA);
 	if (ret < 0)
 		return ret;
 
@@ -112,7 +140,7 @@ int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
 	int ret;
 
 	if (sw_addr == 0)
-		return mdiobus_write(bus, addr, reg, val);
+		return mv88e6xxx_mdiobus_write(bus, addr, reg, val);
 
 	/* Wait for the bus to become free. */
 	ret = mv88e6xxx_reg_wait_ready(bus, sw_addr);
@@ -120,13 +148,13 @@ int __mv88e6xxx_reg_write(struct mii_bus *bus, int sw_addr, int addr,
 		return ret;
 
 	/* Transmit the data to write. */
-	ret = mdiobus_write(bus, sw_addr, SMI_DATA, val);
+	ret = mv88e6xxx_mdiobus_write(bus, sw_addr, SMI_DATA, val);
 	if (ret < 0)
 		return ret;
 
 	/* Transmit the write command. */
-	ret = mdiobus_write(bus, sw_addr, SMI_CMD,
-			    SMI_CMD_OP_22_WRITE | (addr << 5) | reg);
+	ret = mv88e6xxx_mdiobus_write(bus, sw_addr, SMI_CMD,
+				      SMI_CMD_OP_22_WRITE | (addr << 5) | reg);
 	if (ret < 0)
 		return ret;
 

From 448b4482c6713c5b62828622b7bf46900ff9569b Mon Sep 17 00:00:00 2001
From: Andrew Lunn <andrew@lunn.ch>
Date: Wed, 6 May 2015 01:09:56 +0200
Subject: [PATCH 10/10] net: dsa: Add lockdep class to tx queues to avoid
 lockdep splat

DSA stacks an Ethernet device on top of an Ethernet device. This can
cause false positive lockdep splats for the transmit queue:
Acked-by: Florian Fainelli <f.fainelli@gmail.com>

=============================================
[ INFO: possible recursive locking detected ]
4.0.0-rc7-01838-g70621a215fc7 #386 Not tainted
---------------------------------------------
kworker/0:0/4 is trying to acquire lock:
 (_xmit_ETHER#2){+.-...}, at: [<c040e95c>] sch_direct_xmit+0xa8/0x1fc

but task is already holding lock:
 (_xmit_ETHER#2){+.-...}, at: [<c03f4208>] __dev_queue_xmit+0x4d4/0x56c

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(_xmit_ETHER#2);
  lock(_xmit_ETHER#2);

To avoid this, walk the tq queues of the dsa slaves and set a lockdep
class.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/dsa/slave.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 827cda560a55..03e041addea3 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -810,12 +810,19 @@ static int dsa_slave_phy_setup(struct dsa_slave_priv *p,
 	return 0;
 }
 
+static struct lock_class_key dsa_slave_netdev_xmit_lock_key;
+static void dsa_slave_set_lockdep_class_one(struct net_device *dev,
+					    struct netdev_queue *txq,
+					    void *_unused)
+{
+	lockdep_set_class(&txq->_xmit_lock,
+			  &dsa_slave_netdev_xmit_lock_key);
+}
+
 int dsa_slave_suspend(struct net_device *slave_dev)
 {
 	struct dsa_slave_priv *p = netdev_priv(slave_dev);
 
-	netif_device_detach(slave_dev);
-
 	if (p->phy) {
 		phy_stop(p->phy);
 		p->old_pause = -1;
@@ -861,6 +868,9 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
 	slave_dev->netdev_ops = &dsa_slave_netdev_ops;
 	slave_dev->swdev_ops = &dsa_slave_swdev_ops;
 
+	netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one,
+				 NULL);
+
 	SET_NETDEV_DEV(slave_dev, parent);
 	slave_dev->dev.of_node = ds->pd->port_dn[port];
 	slave_dev->vlan_features = master->vlan_features;