3 files changed, 58 insertions, 2 deletions

diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
index 46429402dfc1..6f736c19872f 100644
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -14,12 +14,21 @@
 #define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
 
 #include <linux/bcma/bcma.h>
+#include <linux/brcmphy.h>
 #include <linux/etherdevice.h>
 #include <linux/of_address.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
 #include "bgmac.h"
 
+#define NICPM_IOMUX_CTRL		0x00000008
+
+#define NICPM_IOMUX_CTRL_INIT_VAL	0x3196e000
+#define NICPM_IOMUX_CTRL_SPD_SHIFT	10
+#define NICPM_IOMUX_CTRL_SPD_10M	0
+#define NICPM_IOMUX_CTRL_SPD_100M	1
+#define NICPM_IOMUX_CTRL_SPD_1000M	2
+
 static u32 platform_bgmac_read(struct bgmac *bgmac, u16 offset)
 {
 	return readl(bgmac->plat.base + offset);
@@ -87,12 +96,46 @@ static void platform_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset,
 	WARN_ON(1);
 }
 
+static void bgmac_nicpm_speed_set(struct net_device *net_dev)
+{
+	struct bgmac *bgmac = netdev_priv(net_dev);
+	u32 val;
+
+	if (!bgmac->plat.nicpm_base)
+		return;
+
+	val = NICPM_IOMUX_CTRL_INIT_VAL;
+	switch (bgmac->net_dev->phydev->speed) {
+	default:
+		netdev_err(net_dev, "Unsupported speed. Defaulting to 1000Mb\n");
+	case SPEED_1000:
+		val |= NICPM_IOMUX_CTRL_SPD_1000M << NICPM_IOMUX_CTRL_SPD_SHIFT;
+		break;
+	case SPEED_100:
+		val |= NICPM_IOMUX_CTRL_SPD_100M << NICPM_IOMUX_CTRL_SPD_SHIFT;
+		break;
+	case SPEED_10:
+		val |= NICPM_IOMUX_CTRL_SPD_10M << NICPM_IOMUX_CTRL_SPD_SHIFT;
+		break;
+	}
+
+	writel(val, bgmac->plat.nicpm_base + NICPM_IOMUX_CTRL);
+
+	bgmac_adjust_link(bgmac->net_dev);
+}
+
 static int platform_phy_connect(struct bgmac *bgmac)
 {
 	struct phy_device *phy_dev;
 
-	phy_dev = of_phy_get_and_connect(bgmac->net_dev, bgmac->dev->of_node,
-					 bgmac_adjust_link);
+	if (bgmac->plat.nicpm_base)
+		phy_dev = of_phy_get_and_connect(bgmac->net_dev,
+						 bgmac->dev->of_node,
+						 bgmac_nicpm_speed_set);
+	else
+		phy_dev = of_phy_get_and_connect(bgmac->net_dev,
+						 bgmac->dev->of_node,
+						 bgmac_adjust_link);
 	if (!phy_dev) {
 		dev_err(bgmac->dev, "PHY connection failed\n");
 		return -ENODEV;
@@ -156,6 +199,14 @@ static int bgmac_probe(struct platform_device *pdev)
 	if (IS_ERR(bgmac->plat.idm_base))
 		return PTR_ERR(bgmac->plat.idm_base);
 
+	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nicpm_base");
+	if (regs) {
+		bgmac->plat.nicpm_base = devm_ioremap_resource(&pdev->dev,
+							       regs);
+		if (IS_ERR(bgmac->plat.nicpm_base))
+			return PTR_ERR(bgmac->plat.nicpm_base);
+	}
+
 	bgmac->read = platform_bgmac_read;
 	bgmac->write = platform_bgmac_write;
 	bgmac->idm_read = platform_bgmac_idm_read;
@@ -187,6 +238,7 @@ static int bgmac_remove(struct platform_device *pdev)
 static const struct of_device_id bgmac_of_enet_match[] = {
 	{.compatible = "brcm,amac",},
 	{.compatible = "brcm,nsp-amac",},
+	{.compatible = "brcm,ns2-amac",},
 	{},
 };
 
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 7f66ea763822..a29787fbb572 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1082,6 +1082,9 @@ static void bgmac_enable(struct bgmac *bgmac)
 /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
 static void bgmac_chip_init(struct bgmac *bgmac)
 {
+	/* Clear any erroneously pending interrupts */
+	bgmac_write(bgmac, BGMAC_INT_STATUS, ~0);
+
 	/* 1 interrupt per received frame */
 	bgmac_write(bgmac, BGMAC_INT_RECV_LAZY, 1 << BGMAC_IRL_FC_SHIFT);
 
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index bfd9f40d71f7..71f493f2451f 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -463,6 +463,7 @@ struct bgmac {
 		struct {
 			void *base;
 			void *idm_base;
+			void *nicpm_base;
 		} plat;
 		struct {
 			struct bcma_device *core;