openwrt-archive/target/linux/brcm63xx/patches-4.4/423-bcm63xx_enet_add_b53_support.patch

--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
@@ -336,6 +336,9 @@ struct bcm_enet_priv {
 	struct bcm63xx_enetsw_port used_ports[ENETSW_MAX_PORT];
 	int sw_port_link[ENETSW_MAX_PORT];
 
+	/* platform device for associated switch */
+	struct platform_device *b53_device;
+
 	/* used to poll switch port state */
 	struct timer_list swphy_poll;
 	spinlock_t enetsw_mdio_lock;
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -31,6 +31,7 @@
 #include <linux/platform_device.h>
 #include <linux/if_vlan.h>
 #include <linux/gpio/consumer.h>
+#include <linux/platform_data/b53.h>
 
 #include <bcm63xx_dev_enet.h>
 #include "bcm63xx_enet.h"
@@ -1974,7 +1975,8 @@ static int bcm_enet_remove(struct platfo
 	return 0;
 }
 
-struct platform_driver bcm63xx_enet_driver = {
+
+static struct platform_driver bcm63xx_enet_driver = {
 	.probe	= bcm_enet_probe,
 	.remove	= bcm_enet_remove,
 	.driver	= {
@@ -1983,6 +1985,42 @@ struct platform_driver bcm63xx_enet_driv
 	},
 };
 
+struct b53_platform_data bcm63xx_b53_pdata = {
+	.chip_id = 0x6300,
+	.big_endian = 1,
+};
+
+struct platform_device bcm63xx_b53_dev = {
+	.name		= "b53-switch",
+	.id		= -1,
+	.dev		= {
+		.platform_data = &bcm63xx_b53_pdata,
+	},
+};
+
+static int bcmenet_switch_register(struct bcm_enet_priv *priv, u16 port_mask)
+{
+	int ret;
+
+	bcm63xx_b53_pdata.regs = priv->base;
+	bcm63xx_b53_pdata.enabled_ports = port_mask;
+	bcm63xx_b53_pdata.alias = priv->net_dev->name;
+
+	ret = platform_device_register(&bcm63xx_b53_dev);
+	if (!ret)
+		priv->b53_device = &bcm63xx_b53_dev;
+
+	return ret;
+}
+
+static void bcmenet_switch_unregister(struct bcm_enet_priv *priv)
+{
+	if (priv->b53_device)
+		platform_device_unregister(&bcm63xx_b53_dev);
+
+	priv->b53_device = NULL;
+}
+
 /*
  * switch mii access callbacks
  */
@@ -2241,29 +2279,6 @@ static int bcm_enetsw_open(struct net_de
 		enetsw_writeb(priv, rgmii_ctrl, ENETSW_RGMII_CTRL_REG(i));
 	}
 
-	/* reset mib */
-	val = enetsw_readb(priv, ENETSW_GMCR_REG);
-	val |= ENETSW_GMCR_RST_MIB_MASK;
-	enetsw_writeb(priv, val, ENETSW_GMCR_REG);
-	mdelay(1);
-	val &= ~ENETSW_GMCR_RST_MIB_MASK;
-	enetsw_writeb(priv, val, ENETSW_GMCR_REG);
-	mdelay(1);
-
-	/* force CPU port state */
-	val = enetsw_readb(priv, ENETSW_IMPOV_REG);
-	val |= ENETSW_IMPOV_FORCE_MASK | ENETSW_IMPOV_LINKUP_MASK;
-	enetsw_writeb(priv, val, ENETSW_IMPOV_REG);
-
-	/* enable switch forward engine */
-	val = enetsw_readb(priv, ENETSW_SWMODE_REG);
-	val |= ENETSW_SWMODE_FWD_EN_MASK;
-	enetsw_writeb(priv, val, ENETSW_SWMODE_REG);
-
-	/* enable jumbo on all ports */
-	enetsw_writel(priv, 0x1ff, ENETSW_JMBCTL_PORT_REG);
-	enetsw_writew(priv, 9728, ENETSW_JMBCTL_MAXSIZE_REG);
-
 	/* initialize flow control buffer allocation */
 	enet_dma_writel(priv, ENETDMA_BUFALLOC_FORCE_MASK | 0,
 			ENETDMA_BUFALLOC_REG(priv->rx_chan));
@@ -2722,6 +2737,9 @@ static int bcm_enetsw_probe(struct platf
 	struct bcm63xx_enetsw_platform_data *pd;
 	struct resource *res_mem;
 	int ret, irq_rx, irq_tx;
+	unsigned i, num_ports = 0;
+	u16 port_mask = BIT(8);
+	u8 val;
 
 	/* stop if shared driver failed, assume driver->probe will be
 	 * called in the same order we register devices (correct ?)
@@ -2811,6 +2829,43 @@ static int bcm_enetsw_probe(struct platf
 	priv->pdev = pdev;
 	priv->net_dev = dev;
 
+	/* reset mib */
+	val = enetsw_readb(priv, ENETSW_GMCR_REG);
+	val |= ENETSW_GMCR_RST_MIB_MASK;
+	enetsw_writeb(priv, val, ENETSW_GMCR_REG);
+	mdelay(1);
+	val &= ~ENETSW_GMCR_RST_MIB_MASK;
+	enetsw_writeb(priv, val, ENETSW_GMCR_REG);
+	mdelay(1);
+
+	/* force CPU port state */
+	val = enetsw_readb(priv, ENETSW_IMPOV_REG);
+	val |= ENETSW_IMPOV_FORCE_MASK | ENETSW_IMPOV_LINKUP_MASK;
+	enetsw_writeb(priv, val, ENETSW_IMPOV_REG);
+
+	/* enable switch forward engine */
+	val = enetsw_readb(priv, ENETSW_SWMODE_REG);
+	val |= ENETSW_SWMODE_FWD_EN_MASK;
+	enetsw_writeb(priv, val, ENETSW_SWMODE_REG);
+
+	/* enable jumbo on all ports */
+	enetsw_writel(priv, 0x1ff, ENETSW_JMBCTL_PORT_REG);
+	enetsw_writew(priv, 9728, ENETSW_JMBCTL_MAXSIZE_REG);
+
+	for (i = 0; i < priv->num_ports; i++) {
+		struct bcm63xx_enetsw_port *port = &priv->used_ports[i];
+
+		if (!port->used)
+			continue;
+
+		num_ports++;
+		port_mask |= BIT(i);
+	}
+
+	/* only register if there is more than one external port */
+	if (num_ports > 1)
+		bcmenet_switch_register(priv, port_mask);
+
 	return 0;
 
 out_put_clk:
@@ -2839,6 +2894,9 @@ static int bcm_enetsw_remove(struct plat
 	priv = netdev_priv(dev);
 	unregister_netdev(dev);
 
+	/* remove switch */
+	bcmenet_switch_unregister(priv);
+
 	/* release device resources */
 	iounmap(priv->base);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);