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Message-Id: <20230524130127.268201-8-alexis.lothore@bootlin.com>
Date: Wed, 24 May 2023 15:01:27 +0200
From: Alexis Lothoré <alexis.lothore@...tlin.com>
To: Andrew Lunn <andrew@...n.ch>,
	Florian Fainelli <f.fainelli@...il.com>,
	Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Richard Cochran <richardcochran@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Russell King <linux@...linux.org.uk>
Cc: linux-kernel@...r.kernel.org ,
	netdev@...r.kernel.org ,
	devicetree@...r.kernel.org ,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	paul.arola@...us.com ,
	scott.roberts@...us.com ,
	Marek Behún <kabel@...nel.org>,
	Alexis Lothoré <alexis.lothore@...tlin.com>
Subject: [PATCH net-next v3 7/7] net: dsa: mv88e6xxx: enable support for 88E6361 switch

Marvell 88E6361 is an 8-port switch derived from the
88E6393X/88E9193X/88E6191X switches family. It can benefit from the
existing mv88e6xxx driver by simply adding the proper switch description in
the driver. Main differences with other switches from this
family are:
- 8 ports exposed (instead of 11): ports 1, 2 and 8 not available
- No 5GBase-x nor SFI/USXGMII support

---
Changes since v2:
- use direct chip info comparison instead of intermediate variable to get
  better formatting

Changes since v1:
- define internal phys offset
- enforce 88e6361 features in mv88e6393x_phylink_get_caps
- enforce 88e6361 features in mv88e6393x_port_set_speed_duplex
- enforce 88e6361 features in mv88e6393x_port_max_speed_mode

Signed-off-by: Alexis Lothoré <alexis.lothore@...tlin.com>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 42 ++++++++++++++++++++++++++++----
 drivers/net/dsa/mv88e6xxx/chip.h |  3 ++-
 drivers/net/dsa/mv88e6xxx/port.c | 14 ++++++++---
 drivers/net/dsa/mv88e6xxx/port.h |  1 +
 4 files changed, 51 insertions(+), 9 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 0e6267193ac1..7c77b4b634f9 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -790,6 +790,8 @@ static void mv88e6393x_phylink_get_caps(struct mv88e6xxx_chip *chip, int port,
 	unsigned long *supported = config->supported_interfaces;
 	bool is_6191x =
 		chip->info->prod_num == MV88E6XXX_PORT_SWITCH_ID_PROD_6191X;
+	bool is_6361 =
+		chip->info->prod_num == MV88E6XXX_PORT_SWITCH_ID_PROD_6361;
 
 	mv88e6xxx_translate_cmode(chip->ports[port].cmode, supported);
 
@@ -804,13 +806,17 @@ static void mv88e6393x_phylink_get_caps(struct mv88e6xxx_chip *chip, int port,
 		/* 6191X supports >1G modes only on port 10 */
 		if (!is_6191x || port == 10) {
 			__set_bit(PHY_INTERFACE_MODE_2500BASEX, supported);
-			__set_bit(PHY_INTERFACE_MODE_5GBASER, supported);
-			__set_bit(PHY_INTERFACE_MODE_10GBASER, supported);
+			config->mac_capabilities |= MAC_2500FD;
+
+			/* 6361 only supports up to 2500BaseX */
+			if (!is_6361) {
+				__set_bit(PHY_INTERFACE_MODE_5GBASER, supported);
+				__set_bit(PHY_INTERFACE_MODE_10GBASER, supported);
+				config->mac_capabilities |= MAC_5000FD |
+					MAC_10000FD;
+			}
 			/* FIXME: USXGMII is not supported yet */
 			/* __set_bit(PHY_INTERFACE_MODE_USXGMII, supported); */
-
-			config->mac_capabilities |= MAC_2500FD | MAC_5000FD |
-				MAC_10000FD;
 		}
 	}
 
@@ -6311,6 +6317,32 @@ static const struct mv88e6xxx_info mv88e6xxx_table[] = {
 		.ptp_support = true,
 		.ops = &mv88e6352_ops,
 	},
+	[MV88E6361] = {
+		.prod_num = MV88E6XXX_PORT_SWITCH_ID_PROD_6361,
+		.family = MV88E6XXX_FAMILY_6393,
+		.name = "Marvell 88E6361",
+		.num_databases = 4096,
+		.num_macs = 16384,
+		.num_ports = 11,
+		/* Ports 1, 2 and 8 are not routed */
+		.invalid_port_mask = BIT(1) | BIT(2) | BIT(8),
+		.num_internal_phys = 5,
+		.internal_phys_offset = 3,
+		.max_vid = 4095,
+		.max_sid = 63,
+		.port_base_addr = 0x0,
+		.phy_base_addr = 0x0,
+		.global1_addr = 0x1b,
+		.global2_addr = 0x1c,
+		.age_time_coeff = 3750,
+		.g1_irqs = 10,
+		.g2_irqs = 14,
+		.atu_move_port_mask = 0x1f,
+		.pvt = true,
+		.multi_chip = true,
+		.ptp_support = true,
+		.ops = &mv88e6393x_ops,
+	},
 	[MV88E6390] = {
 		.prod_num = MV88E6XXX_PORT_SWITCH_ID_PROD_6390,
 		.family = MV88E6XXX_FAMILY_6390,
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index dd7c8880e987..79c06ba42c54 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -82,6 +82,7 @@ enum mv88e6xxx_model {
 	MV88E6350,
 	MV88E6351,
 	MV88E6352,
+	MV88E6361,
 	MV88E6390,
 	MV88E6390X,
 	MV88E6393X,
@@ -100,7 +101,7 @@ enum mv88e6xxx_family {
 	MV88E6XXX_FAMILY_6351,	/* 6171 6175 6350 6351 */
 	MV88E6XXX_FAMILY_6352,	/* 6172 6176 6240 6352 */
 	MV88E6XXX_FAMILY_6390,  /* 6190 6190X 6191 6290 6390 6390X */
-	MV88E6XXX_FAMILY_6393,	/* 6191X 6193X 6393X */
+	MV88E6XXX_FAMILY_6393,	/* 6191X 6193X 6361 6393X */
 };
 
 /**
diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c
index 66f1b40b4e96..e9b4a6ea4d09 100644
--- a/drivers/net/dsa/mv88e6xxx/port.c
+++ b/drivers/net/dsa/mv88e6xxx/port.c
@@ -424,6 +424,10 @@ int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 	u16 reg, ctrl;
 	int err;
 
+	if (chip->info->prod_num == MV88E6XXX_PORT_SWITCH_ID_PROD_6361 &&
+	    speed > 2500)
+		return -EOPNOTSUPP;
+
 	if (speed == 200 && port != 0)
 		return -EOPNOTSUPP;
 
@@ -506,10 +510,14 @@ int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port,
 phy_interface_t mv88e6393x_port_max_speed_mode(struct mv88e6xxx_chip *chip,
 					       int port)
 {
-	if (port == 0 || port == 9 || port == 10)
-		return PHY_INTERFACE_MODE_10GBASER;
 
-	return PHY_INTERFACE_MODE_NA;
+	if (port != 0 && port != 9 && port != 10)
+		return PHY_INTERFACE_MODE_NA;
+
+	if (chip->info->prod_num == MV88E6XXX_PORT_SWITCH_ID_PROD_6361)
+		return PHY_INTERFACE_MODE_2500BASEX;
+
+	return PHY_INTERFACE_MODE_10GBASER;
 }
 
 static int mv88e6xxx_port_set_cmode(struct mv88e6xxx_chip *chip, int port,
diff --git a/drivers/net/dsa/mv88e6xxx/port.h b/drivers/net/dsa/mv88e6xxx/port.h
index 3c9fc17abdd2..56dfa9d3d4e0 100644
--- a/drivers/net/dsa/mv88e6xxx/port.h
+++ b/drivers/net/dsa/mv88e6xxx/port.h
@@ -138,6 +138,7 @@
 #define MV88E6XXX_PORT_SWITCH_ID_PROD_6141	0x3400
 #define MV88E6XXX_PORT_SWITCH_ID_PROD_6341	0x3410
 #define MV88E6XXX_PORT_SWITCH_ID_PROD_6352	0x3520
+#define MV88E6XXX_PORT_SWITCH_ID_PROD_6361	0x2610
 #define MV88E6XXX_PORT_SWITCH_ID_PROD_6350	0x3710
 #define MV88E6XXX_PORT_SWITCH_ID_PROD_6351	0x3750
 #define MV88E6XXX_PORT_SWITCH_ID_PROD_6390	0x3900
-- 
2.40.1


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