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Message-Id: <20240123135014.614858-2-dev@pschenker.ch>
Date: Tue, 23 Jan 2024 14:50:14 +0100
From: Philippe Schenker <dev@...henker.ch>
To: netdev@...r.kernel.org
Cc: Paolo Abeni <pabeni@...hat.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Woojung Huh <woojung.huh@...rochip.com>,
	Vladimir Oltean <olteanv@...il.com>,
	linux-kernel@...r.kernel.org,
	UNGLinuxDriver@...rochip.com,
	Marek Vasut <marex@...x.de>,
	Florian Fainelli <f.fainelli@...il.com>,
	devicetree@...r.kernel.org,
	Eric Dumazet <edumazet@...gle.com>,
	"David S . Miller" <davem@...emloft.net>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Jakub Kicinski <kuba@...nel.org>,
	Andrew Lunn <andrew@...n.ch>,
	Rob Herring <robh+dt@...nel.org>,
	Philippe Schenker <philippe.schenker@...ulsing.ch>
Subject: [PATCH net-next v1 2/2] net: dsa: Add KSZ8567 switch support

From: Philippe Schenker <philippe.schenker@...ulsing.ch>

This commit introduces support for the KSZ8567, a robust 7-port
Ethernet switch. The KSZ8567 features two RGMII/MII/RMII interfaces,
each capable of gigabit speeds, complemented by five 10/100 Mbps
MAC/PHYs.

Signed-off-by: Philippe Schenker <philippe.schenker@...ulsing.ch>

---

 drivers/net/dsa/microchip/ksz9477_i2c.c     |  4 ++
 drivers/net/dsa/microchip/ksz_common.c      | 42 ++++++++++++++++++++-
 drivers/net/dsa/microchip/ksz_common.h      |  1 +
 drivers/net/dsa/microchip/ksz_spi.c         |  5 +++
 include/linux/platform_data/microchip-ksz.h |  1 +
 5 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/drivers/net/dsa/microchip/ksz9477_i2c.c b/drivers/net/dsa/microchip/ksz9477_i2c.c
index cac4a607e54a..82bebee4615c 100644
--- a/drivers/net/dsa/microchip/ksz9477_i2c.c
+++ b/drivers/net/dsa/microchip/ksz9477_i2c.c
@@ -103,6 +103,10 @@ static const struct of_device_id ksz9477_dt_ids[] = {
 		.compatible = "microchip,ksz8563",
 		.data = &ksz_switch_chips[KSZ8563]
 	},
+	{
+		.compatible = "microchip,ksz8567",
+		.data = &ksz_switch_chips[KSZ8567]
+	},
 	{
 		.compatible = "microchip,ksz9567",
 		.data = &ksz_switch_chips[KSZ9567]
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 245dfb7a7a31..9b96de86dfc8 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -1214,6 +1214,38 @@ const struct ksz_chip_data ksz_switch_chips[] = {
 		.rd_table = &ksz8563_register_set,
 	},
 
+	[KSZ8567] = {
+		.chip_id = KSZ8567_CHIP_ID,
+		.dev_name = "KSZ8567",
+		.num_vlans = 4096,
+		.num_alus = 4096,
+		.num_statics = 16,
+		.cpu_ports = 0x7F,	/* can be configured as cpu port */
+		.port_cnt = 7,		/* total port count */
+		.port_nirqs = 3,
+		.num_tx_queues = 4,
+		.tc_cbs_supported = true,
+		.tc_ets_supported = true,
+		.ops = &ksz9477_dev_ops,
+		.mib_names = ksz9477_mib_names,
+		.mib_cnt = ARRAY_SIZE(ksz9477_mib_names),
+		.reg_mib_cnt = MIB_COUNTER_NUM,
+		.regs = ksz9477_regs,
+		.masks = ksz9477_masks,
+		.shifts = ksz9477_shifts,
+		.xmii_ctrl0 = ksz9477_xmii_ctrl0,
+		.xmii_ctrl1 = ksz9477_xmii_ctrl1,
+		.supports_mii	= {false, false, false, false,
+				   false, true, true},
+		.supports_rmii	= {false, false, false, false,
+				   false, true, true},
+		.supports_rgmii = {false, false, false, false,
+				   false, true, true},
+		.internal_phy	= {true, true, true, true,
+				   true, false, false},
+		.gbit_capable	= {false, false, false, false, false, true, true},
+	},
+
 	[KSZ8795] = {
 		.chip_id = KSZ8795_CHIP_ID,
 		.dev_name = "KSZ8795",
@@ -2649,6 +2681,7 @@ static void ksz_port_teardown(struct dsa_switch *ds, int port)
 
 	switch (dev->chip_id) {
 	case KSZ8563_CHIP_ID:
+	case KSZ8567_CHIP_ID:
 	case KSZ9477_CHIP_ID:
 	case KSZ9563_CHIP_ID:
 	case KSZ9567_CHIP_ID:
@@ -2705,7 +2738,8 @@ static enum dsa_tag_protocol ksz_get_tag_protocol(struct dsa_switch *ds,
 	    dev->chip_id == KSZ9563_CHIP_ID)
 		proto = DSA_TAG_PROTO_KSZ9893;
 
-	if (dev->chip_id == KSZ9477_CHIP_ID ||
+	if (dev->chip_id == KSZ8567_CHIP_ID ||
+	    dev->chip_id == KSZ9477_CHIP_ID ||
 	    dev->chip_id == KSZ9896_CHIP_ID ||
 	    dev->chip_id == KSZ9897_CHIP_ID ||
 	    dev->chip_id == KSZ9567_CHIP_ID)
@@ -2813,6 +2847,7 @@ static int ksz_max_mtu(struct dsa_switch *ds, int port)
 	case KSZ8830_CHIP_ID:
 		return KSZ8863_HUGE_PACKET_SIZE - VLAN_ETH_HLEN - ETH_FCS_LEN;
 	case KSZ8563_CHIP_ID:
+	case KSZ8567_CHIP_ID:
 	case KSZ9477_CHIP_ID:
 	case KSZ9563_CHIP_ID:
 	case KSZ9567_CHIP_ID:
@@ -2839,6 +2874,7 @@ static int ksz_validate_eee(struct dsa_switch *ds, int port)
 
 	switch (dev->chip_id) {
 	case KSZ8563_CHIP_ID:
+	case KSZ8567_CHIP_ID:
 	case KSZ9477_CHIP_ID:
 	case KSZ9563_CHIP_ID:
 	case KSZ9567_CHIP_ID:
@@ -3183,6 +3219,7 @@ static int ksz_switch_detect(struct ksz_device *dev)
 		case KSZ9896_CHIP_ID:
 		case KSZ9897_CHIP_ID:
 		case KSZ9567_CHIP_ID:
+		case KSZ8567_CHIP_ID:
 		case LAN9370_CHIP_ID:
 		case LAN9371_CHIP_ID:
 		case LAN9372_CHIP_ID:
@@ -3220,6 +3257,7 @@ static int ksz_cls_flower_add(struct dsa_switch *ds, int port,
 
 	switch (dev->chip_id) {
 	case KSZ8563_CHIP_ID:
+	case KSZ8567_CHIP_ID:
 	case KSZ9477_CHIP_ID:
 	case KSZ9563_CHIP_ID:
 	case KSZ9567_CHIP_ID:
@@ -3239,6 +3277,7 @@ static int ksz_cls_flower_del(struct dsa_switch *ds, int port,
 
 	switch (dev->chip_id) {
 	case KSZ8563_CHIP_ID:
+	case KSZ8567_CHIP_ID:
 	case KSZ9477_CHIP_ID:
 	case KSZ9563_CHIP_ID:
 	case KSZ9567_CHIP_ID:
@@ -4142,6 +4181,7 @@ static int ksz_parse_drive_strength(struct ksz_device *dev)
 	case KSZ8794_CHIP_ID:
 	case KSZ8765_CHIP_ID:
 	case KSZ8563_CHIP_ID:
+	case KSZ8567_CHIP_ID:
 	case KSZ9477_CHIP_ID:
 	case KSZ9563_CHIP_ID:
 	case KSZ9567_CHIP_ID:
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 15612101a155..060c5de9aa05 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -187,6 +187,7 @@ struct ksz_device {
 /* List of supported models */
 enum ksz_model {
 	KSZ8563,
+	KSZ8567,
 	KSZ8795,
 	KSZ8794,
 	KSZ8765,
diff --git a/drivers/net/dsa/microchip/ksz_spi.c b/drivers/net/dsa/microchip/ksz_spi.c
index 6f6d878e742c..c8166fb440ab 100644
--- a/drivers/net/dsa/microchip/ksz_spi.c
+++ b/drivers/net/dsa/microchip/ksz_spi.c
@@ -164,6 +164,10 @@ static const struct of_device_id ksz_dt_ids[] = {
 		.compatible = "microchip,ksz8563",
 		.data = &ksz_switch_chips[KSZ8563]
 	},
+	{
+		.compatible = "microchip,ksz8567",
+		.data = &ksz_switch_chips[KSZ8567]
+	},
 	{
 		.compatible = "microchip,ksz9567",
 		.data = &ksz_switch_chips[KSZ9567]
@@ -204,6 +208,7 @@ static const struct spi_device_id ksz_spi_ids[] = {
 	{ "ksz9893" },
 	{ "ksz9563" },
 	{ "ksz8563" },
+	{ "ksz8567" },
 	{ "ksz9567" },
 	{ "lan9370" },
 	{ "lan9371" },
diff --git a/include/linux/platform_data/microchip-ksz.h b/include/linux/platform_data/microchip-ksz.h
index f177416635a2..c4466e56d9d7 100644
--- a/include/linux/platform_data/microchip-ksz.h
+++ b/include/linux/platform_data/microchip-ksz.h
@@ -24,6 +24,7 @@
 
 enum ksz_chip_id {
 	KSZ8563_CHIP_ID = 0x8563,
+	KSZ8567_CHIP_ID = 0x00856700,
 	KSZ8795_CHIP_ID = 0x8795,
 	KSZ8794_CHIP_ID = 0x8794,
 	KSZ8765_CHIP_ID = 0x8765,
-- 
2.34.1

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