Merge branch 'bcm53134-support'

Álvaro Fernández Rojas says:

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

This is based on the initial work from Paul Geurts that was sent to the
incorrect linux development lists and recipients.
I've modified it by removing BCM53134_DEVICE_ID from is531x5() and therefore
adding is53134() where needed.
I also added a separate RGMII handling block for is53134() since according to
Paul, BCM53134 doesn't support RGMII_CTRL_TIMING_SEL as opposed to is531x5().
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml

@@ -19,6 +19,7 @@ properties:
       - const: brcm,bcm53115
       - const: brcm,bcm53125
       - const: brcm,bcm53128
+      - const: brcm,bcm53134
       - const: brcm,bcm5365
       - const: brcm,bcm5395
       - const: brcm,bcm5389

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