net: dsa: b53: mdio: add support for BCM53134

Add support for the BCM53134 Ethernet switch in the existing b53 dsa driver.
BCM53134 is very similar to the BCM58XX series.
Signed-off-by: Paul Geurts <paul.geurts@prodrive-technologies.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/dsa/b53/b53_common.c

@@ -2613,6 +2613,20 @@ static const struct b53_chip_data b53_switch_chips[] = {
 		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
 		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
 	},
+	{
+		.chip_id = BCM53134_DEVICE_ID,
+		.dev_name = "BCM53134",
+		.vlans = 4096,
+		.enabled_ports = 0x12f,
+		.imp_port = 8,
+		.cpu_port = B53_CPU_PORT,
+		.vta_regs = B53_VTA_REGS,
+		.arl_bins = 4,
+		.arl_buckets = 1024,
+		.duplex_reg = B53_DUPLEX_STAT_GE,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+	},
 };
 
 static int b53_switch_init(struct b53_device *dev)
@@ -2790,6 +2804,7 @@ int b53_switch_detect(struct b53_device *dev)
 		case BCM53012_DEVICE_ID:
 		case BCM53018_DEVICE_ID:
 		case BCM53019_DEVICE_ID:
+		case BCM53134_DEVICE_ID:
 			dev->chip_id = id32;
 			break;
 		default:

drivers/net/dsa/b53/b53_mdio.c

@@ -286,6 +286,7 @@ static const struct b53_io_ops b53_mdio_ops = {
 #define B53_BRCM_OUI_2	0x03625c00
 #define B53_BRCM_OUI_3	0x00406000
 #define B53_BRCM_OUI_4	0x01410c00
+#define B53_BRCM_OUI_5	0xae025000
 
 static int b53_mdio_probe(struct mdio_device *mdiodev)
 {
@@ -313,7 +314,8 @@ static int b53_mdio_probe(struct mdio_device *mdiodev)
 	if ((phy_id & 0xfffffc00) != B53_BRCM_OUI_1 &&
 	    (phy_id & 0xfffffc00) != B53_BRCM_OUI_2 &&
 	    (phy_id & 0xfffffc00) != B53_BRCM_OUI_3 &&
-	    (phy_id & 0xfffffc00) != B53_BRCM_OUI_4) {
+	    (phy_id & 0xfffffc00) != B53_BRCM_OUI_4 &&
+	    (phy_id & 0xfffffc00) != B53_BRCM_OUI_5) {
 		dev_err(&mdiodev->dev, "Unsupported device: 0x%08x\n", phy_id);
 		return -ENODEV;
 	}
@@ -375,6 +377,7 @@ static const struct of_device_id b53_of_match[] = {
 	{ .compatible = "brcm,bcm53115" },
 	{ .compatible = "brcm,bcm53125" },
 	{ .compatible = "brcm,bcm53128" },
+	{ .compatible = "brcm,bcm53134" },
 	{ .compatible = "brcm,bcm5365" },
 	{ .compatible = "brcm,bcm5389" },
 	{ .compatible = "brcm,bcm5395" },

drivers/net/dsa/b53/b53_priv.h

@@ -80,6 +80,7 @@ enum {
 	BCM583XX_DEVICE_ID = 0x58300,
 	BCM7445_DEVICE_ID = 0x7445,
 	BCM7278_DEVICE_ID = 0x7278,
+	BCM53134_DEVICE_ID = 0x5075,
 };
 
 struct b53_pcs {
@@ -187,7 +188,8 @@ static inline int is531x5(struct b53_device *dev)
 {
 	return dev->chip_id == BCM53115_DEVICE_ID ||
 		dev->chip_id == BCM53125_DEVICE_ID ||
-		dev->chip_id == BCM53128_DEVICE_ID;
+		dev->chip_id == BCM53128_DEVICE_ID ||
+		dev->chip_id == BCM53134_DEVICE_ID;
 }
 
 static inline int is63xx(struct b53_device *dev)
@@ -215,7 +217,8 @@ static inline int is58xx(struct b53_device *dev)
 	return dev->chip_id == BCM58XX_DEVICE_ID ||
 		dev->chip_id == BCM583XX_DEVICE_ID ||
 		dev->chip_id == BCM7445_DEVICE_ID ||
-		dev->chip_id == BCM7278_DEVICE_ID;
+		dev->chip_id == BCM7278_DEVICE_ID ||
+		dev->chip_id == BCM53134_DEVICE_ID;
 }
 
 #define B53_63XX_RGMII0	4