[PATCH v2 5/6] net: ethernet: bgmac: Add platform device support

[jon.mason@broadcom.com (Jon Mason)]

The bcma portion of the driver has been split off into a bcma specific
driver.  This has been mirrored for the platform driver.  The last
references to the bcma core struct have been changed into a generic
function call.  These function calls are wrappers to either the original
bcma code or new platform functions that access the same areas via MMIO.
This necessitated adding function pointers for both platform and bcma to
hide which backend is being used from the generic bgmac code.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/net/ethernet/broadcom/Kconfig           |  23 +-
 drivers/net/ethernet/broadcom/Makefile          |   4 +-
 drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c |   2 +
 drivers/net/ethernet/broadcom/bgmac-bcma.c      | 315 +++++++++++++++++++++++
 drivers/net/ethernet/broadcom/bgmac-platform.c  | 189 ++++++++++++++
 drivers/net/ethernet/broadcom/bgmac.c           | 329 ++++--------------------
 drivers/net/ethernet/broadcom/bgmac.h           |  73 +++++-
 7 files changed, 650 insertions(+), 285 deletions(-)
 create mode 100644 drivers/net/ethernet/broadcom/bgmac-bcma.c
 create mode 100644 drivers/net/ethernet/broadcom/bgmac-platform.c

diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index d74a92e..bd8c80c 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -140,10 +140,18 @@ config BNX2X_SRIOV
 	  allows for virtual function acceleration in virtual environments.
 
 config BGMAC
-	tristate "BCMA bus GBit core support"
+	tristate
+	help
+	  This enables the integrated ethernet controller support for many
+	  Broadcom (mostly iProc) SoCs. An appropriate bus interface driver
+	  needs to be enabled to select this.
+
+config BGMAC_BCMA
+	tristate "Broadcom iProc GBit BCMA support"
 	depends on BCMA && BCMA_HOST_SOC
 	depends on HAS_DMA
 	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
+	select BGMAC
 	select PHYLIB
 	select FIXED_PHY
 	---help---
@@ -152,6 +160,19 @@ config BGMAC
 	  In case of using this driver on BCM4706 it's also requires to enable
 	  BCMA_DRIVER_GMAC_CMN to make it work.
 
+config BGMAC_PLATFORM
+	tristate "Broadcom iProc GBit platform support"
+	depends on HAS_DMA
+	depends on ARCH_BCM_IPROC || COMPILE_TEST
+	depends on OF
+	select BGMAC
+	select PHYLIB
+	select FIXED_PHY
+	default ARCH_BCM_IPROC
+	---help---
+	  Say Y here if you want to use the Broadcom iProc Gigabit Ethernet
+	  controller through the generic platform interface
+
 config SYSTEMPORT
 	tristate "Broadcom SYSTEMPORT internal MAC support"
 	depends on OF
diff --git a/drivers/net/ethernet/broadcom/Makefile b/drivers/net/ethernet/broadcom/Makefile
index f559794..79f2372 100644
--- a/drivers/net/ethernet/broadcom/Makefile
+++ b/drivers/net/ethernet/broadcom/Makefile
@@ -10,6 +10,8 @@ obj-$(CONFIG_CNIC) += cnic.o
 obj-$(CONFIG_BNX2X) += bnx2x/
 obj-$(CONFIG_SB1250_MAC) += sb1250-mac.o
 obj-$(CONFIG_TIGON3) += tg3.o
-obj-$(CONFIG_BGMAC) += bgmac.o bgmac-bcma-mdio.o
+obj-$(CONFIG_BGMAC) += bgmac.o
+obj-$(CONFIG_BGMAC_BCMA) += bgmac-bcma.o bgmac-bcma-mdio.o
+obj-$(CONFIG_BGMAC_PLATFORM) += bgmac-platform.o
 obj-$(CONFIG_SYSTEMPORT) += bcmsysport.o
 obj-$(CONFIG_BNXT) += bnxt/
diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
index 1e65349..7c19c8e 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c
@@ -245,6 +245,7 @@ err:
 	kfree(bcma_mdio);
 	return ERR_PTR(err);
 }
+EXPORT_SYMBOL_GPL(bcma_mdio_mii_register);
 
 void bcma_mdio_mii_unregister(struct mii_bus *mii_bus)
 {
@@ -259,6 +260,7 @@ void bcma_mdio_mii_unregister(struct mii_bus *mii_bus)
 	mdiobus_free(mii_bus);
 	kfree(bcma_mdio);
 }
+EXPORT_SYMBOL_GPL(bcma_mdio_mii_unregister);
 
 MODULE_AUTHOR("Rafa? Mi?ecki");
 MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
new file mode 100644
index 0000000..9a9745c4
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
@@ -0,0 +1,315 @@
+/*
+ * Driver for (BCM4706)? GBit MAC core on BCMA bus.
+ *
+ * Copyright (C) 2012 Rafa? Mi?ecki <zajec5@gmail.com>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
+
+#include <linux/bcma/bcma.h>
+#include <linux/brcmphy.h>
+#include <linux/etherdevice.h>
+#include "bgmac.h"
+
+static inline bool bgmac_is_bcm4707_family(struct bcma_device *core)
+{
+	switch (core->bus->chipinfo.id) {
+	case BCMA_CHIP_ID_BCM4707:
+	case BCMA_CHIP_ID_BCM47094:
+	case BCMA_CHIP_ID_BCM53018:
+		return true;
+	default:
+		return false;
+	}
+}
+
+/**************************************************
+ * BCMA bus ops
+ **************************************************/
+
+static u32 bcma_bgmac_read(struct bgmac *bgmac, u16 offset)
+{
+	return bcma_read32(bgmac->bcma.core, offset);
+}
+
+static void bcma_bgmac_write(struct bgmac *bgmac, u16 offset, u32 value)
+{
+	bcma_write32(bgmac->bcma.core, offset, value);
+}
+
+static u32 bcma_bgmac_idm_read(struct bgmac *bgmac, u16 offset)
+{
+	return bcma_aread32(bgmac->bcma.core, offset);
+}
+
+static void bcma_bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value)
+{
+	return bcma_awrite32(bgmac->bcma.core, offset, value);
+}
+
+static bool bcma_bgmac_clk_enabled(struct bgmac *bgmac)
+{
+	return bcma_core_is_enabled(bgmac->bcma.core);
+}
+
+static void bcma_bgmac_clk_enable(struct bgmac *bgmac, u32 flags)
+{
+	bcma_core_enable(bgmac->bcma.core, flags);
+}
+
+static void bcma_bgmac_cco_ctl_maskset(struct bgmac *bgmac, u32 offset,
+				       u32 mask, u32 set)
+{
+	struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
+
+	bcma_chipco_chipctl_maskset(cc, offset, mask, set);
+}
+
+static u32 bcma_bgmac_get_bus_clock(struct bgmac *bgmac)
+{
+	struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
+
+	return bcma_pmu_get_bus_clock(cc);
+}
+
+static void bcma_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset, u32 mask,
+				     u32 set)
+{
+	bcma_maskset32(bgmac->bcma.cmn, offset, mask, set);
+}
+
+static const struct bcma_device_id bgmac_bcma_tbl[] = {
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT,
+		  BCMA_ANY_REV, BCMA_ANY_CLASS),
+	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_MAC_GBIT, BCMA_ANY_REV,
+		  BCMA_ANY_CLASS),
+	{},
+};
+MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
+
+/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
+static int bgmac_probe(struct bcma_device *core)
+{
+	struct ssb_sprom *sprom = &core->bus->sprom;
+	struct mii_bus *mii_bus;
+	struct bgmac *bgmac;
+	u8 *mac;
+	int err;
+
+	bgmac = kzalloc(sizeof(*bgmac), GFP_KERNEL);
+	if (!bgmac)
+		return -ENOMEM;
+
+	bgmac->bcma.core = core;
+	bgmac->dev = &core->dev;
+	bgmac->dma_dev = core->dma_dev;
+	bgmac->irq = core->irq;
+
+	bcma_set_drvdata(core, bgmac);
+
+	switch (core->core_unit) {
+	case 0:
+		mac = sprom->et0mac;
+		break;
+	case 1:
+		mac = sprom->et1mac;
+		break;
+	case 2:
+		mac = sprom->et2mac;
+		break;
+	default:
+		dev_err(bgmac->dev, "Unsupported core_unit %d\n",
+			core->core_unit);
+		err = -ENOTSUPP;
+		goto err;
+	}
+
+	ether_addr_copy(bgmac->mac_addr, mac);
+
+	/* On BCM4706 we need common core to access PHY */
+	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
+	    !core->bus->drv_gmac_cmn.core) {
+		dev_err(bgmac->dev, "GMAC CMN core not found (required for BCM4706)\n");
+		err = -ENODEV;
+		goto err;
+	}
+	bgmac->bcma.cmn = core->bus->drv_gmac_cmn.core;
+
+	switch (core->core_unit) {
+	case 0:
+		bgmac->phyaddr = sprom->et0phyaddr;
+		break;
+	case 1:
+		bgmac->phyaddr = sprom->et1phyaddr;
+		break;
+	case 2:
+		bgmac->phyaddr = sprom->et2phyaddr;
+		break;
+	}
+	bgmac->phyaddr &= BGMAC_PHY_MASK;
+	if (bgmac->phyaddr == BGMAC_PHY_MASK) {
+		dev_err(bgmac->dev, "No PHY found\n");
+		err = -ENODEV;
+		goto err;
+	}
+	dev_info(bgmac->dev, "Found PHY addr: %d%s\n", bgmac->phyaddr,
+		 bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : "");
+
+	if (!bgmac_is_bcm4707_family(core)) {
+		mii_bus = bcma_mdio_mii_register(core, bgmac->phyaddr);
+		if (!IS_ERR(mii_bus)) {
+			err = PTR_ERR(mii_bus);
+			goto err;
+		}
+
+		bgmac->mii_bus = mii_bus;
+	}
+
+	if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
+		dev_err(bgmac->dev, "PCI setup not implemented\n");
+		err = -ENOTSUPP;
+		goto err1;
+	}
+
+	bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo &
+			       BGMAC_BFL_ENETROBO);
+	if (bgmac->has_robosw)
+		dev_warn(bgmac->dev, "Support for Roboswitch not implemented\n");
+
+	if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM)
+		dev_warn(bgmac->dev, "Support for ADMtek ethernet switch not implemented\n");
+
+	/* Feature Flags */
+	switch (core->bus->chipinfo.id) {
+	case BCMA_CHIP_ID_BCM5357:
+		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
+		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
+		bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
+		if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47186) {
+			bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
+			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
+		}
+		if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM5358)
+			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_EPHYRMII;
+		break;
+	case BCMA_CHIP_ID_BCM53572:
+		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
+		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
+		bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
+		if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47188) {
+			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
+			bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
+		}
+		break;
+	case BCMA_CHIP_ID_BCM4749:
+		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
+		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
+		bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
+		if (core->bus->chipinfo.pkg == 10) {
+			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
+			bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
+		}
+		break;
+	case BCMA_CHIP_ID_BCM4716:
+		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+		/* fallthrough */
+	case BCMA_CHIP_ID_BCM47162:
+		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL2;
+		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
+		break;
+	/* bcm4707_family */
+	case BCMA_CHIP_ID_BCM4707:
+	case BCMA_CHIP_ID_BCM47094:
+	case BCMA_CHIP_ID_BCM53018:
+		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+		bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
+		bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
+		break;
+	default:
+		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
+	}
+
+	if (!bgmac_is_bcm4707_family(core) && core->id.rev > 2)
+		bgmac->feature_flags |= BGMAC_FEAT_MISC_PLL_REQ;
+
+	if (core->id.id == BCMA_CORE_4706_MAC_GBIT) {
+		bgmac->feature_flags |= BGMAC_FEAT_CMN_PHY_CTL;
+		bgmac->feature_flags |= BGMAC_FEAT_NO_CLR_MIB;
+	}
+
+	if (core->id.rev >= 4) {
+		bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
+		bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
+		bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
+	}
+
+	bgmac->read = bcma_bgmac_read;
+	bgmac->write = bcma_bgmac_write;
+	bgmac->idm_read = bcma_bgmac_idm_read;
+	bgmac->idm_write = bcma_bgmac_idm_write;
+	bgmac->clk_enabled = bcma_bgmac_clk_enabled;
+	bgmac->clk_enable = bcma_bgmac_clk_enable;
+	bgmac->cco_ctl_maskset = bcma_bgmac_cco_ctl_maskset;
+	bgmac->get_bus_clock = bcma_bgmac_get_bus_clock;
+	bgmac->cmn_maskset32 = bcma_bgmac_cmn_maskset32;
+
+	err = bgmac_enet_probe(bgmac);
+	if (err)
+		goto err1;
+
+	return 0;
+
+err1:
+	bcma_mdio_mii_unregister(bgmac->mii_bus);
+err:
+	kfree(bgmac);
+	bcma_set_drvdata(core, NULL);
+
+	return err;
+}
+
+static void bgmac_remove(struct bcma_device *core)
+{
+	struct bgmac *bgmac = bcma_get_drvdata(core);
+
+	bcma_mdio_mii_unregister(bgmac->mii_bus);
+	bgmac_enet_remove(bgmac);
+	bcma_set_drvdata(core, NULL);
+	kfree(bgmac);
+}
+
+static struct bcma_driver bgmac_bcma_driver = {
+	.name		= KBUILD_MODNAME,
+	.id_table	= bgmac_bcma_tbl,
+	.probe		= bgmac_probe,
+	.remove		= bgmac_remove,
+};
+
+static int __init bgmac_init(void)
+{
+	int err;
+
+	err = bcma_driver_register(&bgmac_bcma_driver);
+	if (err)
+		return err;
+	pr_info("Broadcom 47xx GBit MAC driver loaded\n");
+
+	return 0;
+}
+
+static void __exit bgmac_exit(void)
+{
+	bcma_driver_unregister(&bgmac_bcma_driver);
+}
+
+module_init(bgmac_init)
+module_exit(bgmac_exit)
+
+MODULE_AUTHOR("Rafa? Mi?ecki");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
new file mode 100644
index 0000000..7a8f7ef
--- /dev/null
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright (C) 2016 Broadcom
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
+
+#include <linux/bcma/bcma.h>
+#include <linux/etherdevice.h>
+#include <linux/of_address.h>
+#include <linux/of_net.h>
+#include "bgmac.h"
+
+static u32 platform_bgmac_read(struct bgmac *bgmac, u16 offset)
+{
+	return readl(bgmac->plat.base + offset);
+}
+
+static void platform_bgmac_write(struct bgmac *bgmac, u16 offset, u32 value)
+{
+	writel(value, bgmac->plat.base + offset);
+}
+
+static u32 platform_bgmac_idm_read(struct bgmac *bgmac, u16 offset)
+{
+	return readl(bgmac->plat.idm_base + offset);
+}
+
+static void platform_bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value)
+{
+	return writel(value, bgmac->plat.idm_base + offset);
+}
+
+static bool platform_bgmac_clk_enabled(struct bgmac *bgmac)
+{
+	if ((bgmac_idm_read(bgmac, BCMA_IOCTL) &
+	     (BCMA_IOCTL_CLK | BCMA_IOCTL_FGC)) != BCMA_IOCTL_CLK)
+		return false;
+	if (bgmac_idm_read(bgmac, BCMA_RESET_CTL) & BCMA_RESET_CTL_RESET)
+		return false;
+	return true;
+}
+
+static void platform_bgmac_clk_enable(struct bgmac *bgmac, u32 flags)
+{
+	bgmac_idm_write(bgmac, BCMA_IOCTL,
+			(BCMA_IOCTL_CLK | BCMA_IOCTL_FGC | flags));
+	bgmac_idm_read(bgmac, BCMA_IOCTL);
+
+	bgmac_idm_write(bgmac, BCMA_RESET_CTL, 0);
+	bgmac_idm_read(bgmac, BCMA_RESET_CTL);
+	udelay(1);
+
+	bgmac_idm_write(bgmac, BCMA_IOCTL, (BCMA_IOCTL_CLK | flags));
+	bgmac_idm_read(bgmac, BCMA_IOCTL);
+	udelay(1);
+}
+
+static void platform_bgmac_cco_ctl_maskset(struct bgmac *bgmac, u32 offset,
+					   u32 mask, u32 set)
+{
+	/* This shouldn't be encountered */
+	WARN_ON(1);
+}
+
+static u32 platform_bgmac_get_bus_clock(struct bgmac *bgmac)
+{
+	/* This shouldn't be encountered */
+	WARN_ON(1);
+
+	return 0;
+}
+
+static void platform_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset,
+					 u32 mask, u32 set)
+{
+	/* This shouldn't be encountered */
+	WARN_ON(1);
+}
+
+static int bgmac_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct bgmac *bgmac;
+	struct resource *regs;
+	const u8 *mac_addr;
+
+	bgmac = devm_kzalloc(&pdev->dev, sizeof(*bgmac), GFP_KERNEL);
+	if (!bgmac)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, bgmac);
+
+	/* Set the features of the 4707 family */
+	bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
+	bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
+	bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
+	bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
+	bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
+	bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
+
+	bgmac->dev = &pdev->dev;
+	bgmac->dma_dev = &pdev->dev;
+
+	mac_addr = of_get_mac_address(np);
+	if (mac_addr)
+		ether_addr_copy(bgmac->mac_addr, mac_addr);
+	else
+		dev_warn(&pdev->dev, "MAC address not present in device tree\n");
+
+	bgmac->irq = platform_get_irq(pdev, 0);
+	if (bgmac->irq < 0) {
+		dev_err(&pdev->dev, "Unable to obtain IRQ\n");
+		return bgmac->irq;
+	}
+
+	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "amac_base");
+	if (!regs) {
+		dev_err(&pdev->dev, "Unable to obtain base resource\n");
+		return -EINVAL;
+	}
+
+	bgmac->plat.base = devm_ioremap_resource(&pdev->dev, regs);
+	if (IS_ERR(bgmac->plat.base)) {
+		dev_err(&pdev->dev, "Unable to map base resource\n");
+		return PTR_ERR(bgmac->plat.base);
+	}
+
+	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "idm_base");
+	if (!regs) {
+		dev_err(&pdev->dev, "Unable to obtain idm resource\n");
+		return -EINVAL;
+	}
+
+	bgmac->plat.idm_base = devm_ioremap_resource(&pdev->dev, regs);
+	if (!bgmac->plat.idm_base) {
+		dev_err(&pdev->dev, "Unable to map idm resource\n");
+		return PTR_ERR(bgmac->plat.idm_base);
+	}
+
+	bgmac->read = platform_bgmac_read;
+	bgmac->write = platform_bgmac_write;
+	bgmac->idm_read = platform_bgmac_idm_read;
+	bgmac->idm_write = platform_bgmac_idm_write;
+	bgmac->clk_enabled = platform_bgmac_clk_enabled;
+	bgmac->clk_enable = platform_bgmac_clk_enable;
+	bgmac->cco_ctl_maskset = platform_bgmac_cco_ctl_maskset;
+	bgmac->get_bus_clock = platform_bgmac_get_bus_clock;
+	bgmac->cmn_maskset32 = platform_bgmac_cmn_maskset32;
+
+	return bgmac_enet_probe(bgmac);
+}
+
+static int bgmac_remove(struct platform_device *pdev)
+{
+	struct bgmac *bgmac = platform_get_drvdata(pdev);
+
+	bgmac_enet_remove(bgmac);
+
+	return 0;
+}
+
+static const struct of_device_id bgmac_of_enet_match[] = {
+	{.compatible = "brcm,amac",},
+	{.compatible = "brcm,nsp-amac",},
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, bgmac_of_enet_match);
+
+static struct platform_driver bgmac_enet_driver = {
+	.driver = {
+		.name  = "bgmac-enet",
+		.of_match_table = bgmac_of_enet_match,
+	},
+	.probe = bgmac_probe,
+	.remove = bgmac_remove,
+};
+
+module_platform_driver(bgmac_enet_driver);
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index b85e39a..bba9749 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -6,51 +6,27 @@
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
-#include "bgmac.h"
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/delay.h>
+#define pr_fmt(fmt)		KBUILD_MODNAME ": " fmt
+
+#include <linux/bcma/bcma.h>
 #include <linux/etherdevice.h>
-#include <linux/mii.h>
-#include <linux/phy.h>
-#include <linux/phy_fixed.h>
-#include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
 #include <linux/bcm47xx_nvram.h>
+#include "bgmac.h"
 
-static const struct bcma_device_id bgmac_bcma_tbl[] = {
-	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT, BCMA_ANY_REV, BCMA_ANY_CLASS),
-	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_MAC_GBIT, BCMA_ANY_REV, BCMA_ANY_CLASS),
-	{},
-};
-MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
-
-static inline bool bgmac_is_bcm4707_family(struct bgmac *bgmac)
-{
-	switch (bgmac->core->bus->chipinfo.id) {
-	case BCMA_CHIP_ID_BCM4707:
-	case BCMA_CHIP_ID_BCM47094:
-	case BCMA_CHIP_ID_BCM53018:
-		return true;
-	default:
-		return false;
-	}
-}
-
-static bool bgmac_wait_value(struct bcma_device *core, u16 reg, u32 mask,
+static bool bgmac_wait_value(struct bgmac *bgmac, u16 reg, u32 mask,
 			     u32 value, int timeout)
 {
 	u32 val;
 	int i;
 
 	for (i = 0; i < timeout / 10; i++) {
-		val = bcma_read32(core, reg);
+		val = bgmac_read(bgmac, reg);
 		if ((val & mask) == value)
 			return true;
 		udelay(10);
 	}
-	dev_err(&core->dev, "Timeout waiting for reg 0x%X\n", reg);
+	dev_err(bgmac->dev, "Timeout waiting for reg 0x%X\n", reg);
 	return false;
 }
 
@@ -89,7 +65,7 @@ static void bgmac_dma_tx_reset(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
 
 	/* Remove SUSPEND bit */
 	bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_TX_CTL, 0);
-	if (!bgmac_wait_value(bgmac->core,
+	if (!bgmac_wait_value(bgmac,
 			      ring->mmio_base + BGMAC_DMA_TX_STATUS,
 			      BGMAC_DMA_TX_STAT, BGMAC_DMA_TX_STAT_DISABLED,
 			      10000)) {
@@ -316,7 +292,7 @@ static void bgmac_dma_rx_reset(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
 		return;
 
 	bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_CTL, 0);
-	if (!bgmac_wait_value(bgmac->core,
+	if (!bgmac_wait_value(bgmac,
 			      ring->mmio_base + BGMAC_DMA_RX_STATUS,
 			      BGMAC_DMA_RX_STAT, BGMAC_DMA_RX_STAT_DISABLED,
 			      10000))
@@ -639,7 +615,7 @@ static int bgmac_dma_alloc(struct bgmac *bgmac)
 	BUILD_BUG_ON(BGMAC_MAX_TX_RINGS > ARRAY_SIZE(ring_base));
 	BUILD_BUG_ON(BGMAC_MAX_RX_RINGS > ARRAY_SIZE(ring_base));
 
-	if (!(bcma_aread32(bgmac->core, BCMA_IOST) & BCMA_IOST_DMA64)) {
+	if (!(bgmac_idm_read(bgmac, BCMA_IOST) & BCMA_IOST_DMA64)) {
 		dev_err(bgmac->dev, "Core does not report 64-bit DMA\n");
 		return -ENOTSUPP;
 	}
@@ -871,12 +847,10 @@ static void bgmac_mac_speed(struct bgmac *bgmac)
 
 static void bgmac_miiconfig(struct bgmac *bgmac)
 {
-	struct bcma_device *core = bgmac->core;
-
 	if (bgmac->feature_flags & BGMAC_FEAT_FORCE_SPEED_2500) {
-		bcma_awrite32(core, BCMA_IOCTL,
-			      bcma_aread32(core, BCMA_IOCTL) | 0x40 |
-			      BGMAC_BCMA_IOCTL_SW_CLKEN);
+		bgmac_idm_write(bgmac, BCMA_IOCTL,
+				bgmac_idm_read(bgmac, BCMA_IOCTL) | 0x40 |
+				BGMAC_BCMA_IOCTL_SW_CLKEN);
 		bgmac->mac_speed = SPEED_2500;
 		bgmac->mac_duplex = DUPLEX_FULL;
 		bgmac_mac_speed(bgmac);
@@ -896,12 +870,11 @@ static void bgmac_miiconfig(struct bgmac *bgmac)
 /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipreset */
 static void bgmac_chip_reset(struct bgmac *bgmac)
 {
-	struct bcma_device *core = bgmac->core;
 	u32 cmdcfg_sr;
 	u32 iost;
 	int i;
 
-	if (bcma_core_is_enabled(core)) {
+	if (bgmac_clk_enabled(bgmac)) {
 		if (!bgmac->stats_grabbed) {
 			/* bgmac_chip_stats_update(bgmac); */
 			bgmac->stats_grabbed = true;
@@ -919,7 +892,7 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 		/* TODO: Clear software multicast filter list */
 	}
 
-	iost = bcma_aread32(core, BCMA_IOST);
+	iost = bgmac_idm_read(bgmac, BCMA_IOST);
 	if (bgmac->feature_flags & BGMAC_FEAT_IOST_ATTACHED)
 		iost &= ~BGMAC_BCMA_IOST_ATTACHED;
 
@@ -931,21 +904,20 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 			if (!bgmac->has_robosw)
 				flags |= BGMAC_BCMA_IOCTL_SW_RESET;
 		}
-		bcma_core_enable(core, flags);
+		bgmac_clk_enable(bgmac, flags);
 	}
 
 	/* Request Misc PLL for corerev > 2 */
 	if (bgmac->feature_flags & BGMAC_FEAT_MISC_PLL_REQ) {
 		bgmac_set(bgmac, BCMA_CLKCTLST,
 			  BGMAC_BCMA_CLKCTLST_MISC_PLL_REQ);
-		bgmac_wait_value(bgmac->core, BCMA_CLKCTLST,
+		bgmac_wait_value(bgmac, BCMA_CLKCTLST,
 				 BGMAC_BCMA_CLKCTLST_MISC_PLL_ST,
 				 BGMAC_BCMA_CLKCTLST_MISC_PLL_ST,
 				 1000);
 	}
 
 	if (bgmac->feature_flags & BGMAC_FEAT_SW_TYPE_PHY) {
-		struct bcma_drv_cc *cc = &bgmac->core->bus->drv_cc;
 		u8 et_swtype = 0;
 		u8 sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHY |
 			     BGMAC_CHIPCTL_1_IF_TYPE_MII;
@@ -964,16 +936,15 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 			sw_type = BGMAC_CHIPCTL_1_IF_TYPE_RGMII |
 				  BGMAC_CHIPCTL_1_SW_TYPE_RGMII;
 		}
-		bcma_chipco_chipctl_maskset(cc, 1,
-					    ~(BGMAC_CHIPCTL_1_IF_TYPE_MASK |
-					      BGMAC_CHIPCTL_1_SW_TYPE_MASK),
-					    sw_type);
+		bgmac_cco_ctl_maskset(bgmac, 1, ~(BGMAC_CHIPCTL_1_IF_TYPE_MASK |
+						  BGMAC_CHIPCTL_1_SW_TYPE_MASK),
+				      sw_type);
 	}
 
 	if (iost & BGMAC_BCMA_IOST_ATTACHED && !bgmac->has_robosw)
-		bcma_awrite32(core, BCMA_IOCTL,
-			      bcma_aread32(core, BCMA_IOCTL) &
-			      ~BGMAC_BCMA_IOCTL_SW_RESET);
+		bgmac_idm_write(bgmac, BCMA_IOCTL,
+				bgmac_idm_read(bgmac, BCMA_IOCTL) &
+				~BGMAC_BCMA_IOCTL_SW_RESET);
 
 	/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/gmac_reset
 	 * Specs don't say about using BGMAC_CMDCFG_SR, but in this routine
@@ -1009,8 +980,8 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 
 	bgmac_clear_mib(bgmac);
 	if (bgmac->feature_flags & BGMAC_FEAT_CMN_PHY_CTL)
-		bcma_maskset32(bgmac->cmn, BCMA_GMAC_CMN_PHY_CTL, ~0,
-			       BCMA_GMAC_CMN_PC_MTE);
+		bgmac_cmn_maskset32(bgmac, BCMA_GMAC_CMN_PHY_CTL, ~0,
+				    BCMA_GMAC_CMN_PC_MTE);
 	else
 		bgmac_set(bgmac, BGMAC_PHY_CNTL, BGMAC_PC_MTE);
 	bgmac_miiconfig(bgmac);
@@ -1055,8 +1026,8 @@ static void bgmac_enable(struct bgmac *bgmac)
 	if (bgmac->feature_flags & BGMAC_FEAT_CLKCTLST || mode != 0)
 		bgmac_set(bgmac, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
 	if (bgmac->feature_flags & BGMAC_FEAT_CLKCTLST && mode == 2)
-		bcma_chipco_chipctl_maskset(&bgmac->core->bus->drv_cc, 1, ~0,
-					    BGMAC_CHIPCTL_1_RXC_DLL_BYPASS);
+		bgmac_cco_ctl_maskset(bgmac, 1, ~0,
+				      BGMAC_CHIPCTL_1_RXC_DLL_BYPASS);
 
 	if (bgmac->feature_flags & (BGMAC_FEAT_FLW_CTRL1 |
 				    BGMAC_FEAT_FLW_CTRL2)) {
@@ -1078,8 +1049,7 @@ static void bgmac_enable(struct bgmac *bgmac)
 
 		rxq_ctl = bgmac_read(bgmac, BGMAC_RXQ_CTL);
 		rxq_ctl &= ~BGMAC_RXQ_CTL_MDP_MASK;
-		bp_clk = bcma_pmu_get_bus_clock(&bgmac->core->bus->drv_cc) /
-				1000000;
+		bp_clk = bgmac_get_bus_clock(bgmac) / 1000000;
 		mdp = (bp_clk * 128 / 1000) - 3;
 		rxq_ctl |= (mdp << BGMAC_RXQ_CTL_MDP_SHIFT);
 		bgmac_write(bgmac, BGMAC_RXQ_CTL, rxq_ctl);
@@ -1174,7 +1144,7 @@ static int bgmac_open(struct net_device *net_dev)
 	/* Specs say about reclaiming rings here, but we do that in DMA init */
 	bgmac_chip_init(bgmac);
 
-	err = request_irq(bgmac->core->irq, bgmac_interrupt, IRQF_SHARED,
+	err = request_irq(bgmac->irq, bgmac_interrupt, IRQF_SHARED,
 			  KBUILD_MODNAME, net_dev);
 	if (err < 0) {
 		dev_err(bgmac->dev, "IRQ request error: %d!\n", err);
@@ -1199,7 +1169,7 @@ static int bgmac_stop(struct net_device *net_dev)
 
 	napi_disable(&bgmac->napi);
 	bgmac_chip_intrs_off(bgmac);
-	free_irq(bgmac->core->irq, net_dev);
+	free_irq(bgmac->irq, net_dev);
 
 	bgmac_chip_reset(bgmac);
 	bgmac_dma_cleanup(bgmac);
@@ -1378,7 +1348,7 @@ static void bgmac_get_drvinfo(struct net_device *net_dev,
 			      struct ethtool_drvinfo *info)
 {
 	strlcpy(info->driver, KBUILD_MODNAME, sizeof(info->driver));
-	strlcpy(info->bus_info, "BCMA", sizeof(info->bus_info));
+	strlcpy(info->bus_info, "AXI", sizeof(info->bus_info));
 }
 
 static const struct ethtool_ops bgmac_ethtool_ops = {
@@ -1462,116 +1432,41 @@ static int bgmac_phy_connect(struct bgmac *bgmac)
 	return 0;
 }
 
-static int bgmac_probe(struct bcma_device *core)
+int bgmac_enet_probe(struct bgmac *info)
 {
 	struct net_device *net_dev;
 	struct bgmac *bgmac;
-	struct ssb_sprom *sprom = &core->bus->sprom;
-	u8 *mac;
 	int err;
 
-	switch (core->core_unit) {
-	case 0:
-		mac = sprom->et0mac;
-		break;
-	case 1:
-		mac = sprom->et1mac;
-		break;
-	case 2:
-		mac = sprom->et2mac;
-		break;
-	default:
-		dev_err(&core->dev, "Unsupported core_unit %d\n",
-			core->core_unit);
-		return -ENOTSUPP;
-	}
-
-	if (!is_valid_ether_addr(mac)) {
-		dev_err(&core->dev, "Invalid MAC addr: %pM\n", mac);
-		eth_random_addr(mac);
-		dev_warn(&core->dev, "Using random MAC: %pM\n", mac);
-	}
-
-	/* This (reset &) enable is not preset in specs or reference driver but
-	 * Broadcom does it in arch PCI code when enabling fake PCI device.
-	 */
-	bcma_core_enable(core, 0);
-
 	/* Allocation and references */
 	net_dev = alloc_etherdev(sizeof(*bgmac));
 	if (!net_dev)
 		return -ENOMEM;
+
 	net_dev->netdev_ops = &bgmac_netdev_ops;
-	net_dev->irq = core->irq;
 	net_dev->ethtool_ops = &bgmac_ethtool_ops;
 	bgmac = netdev_priv(net_dev);
-	bgmac->dev = &core->dev;
-	bgmac->dma_dev = core->dma_dev;
+	memcpy(bgmac, info, sizeof(*bgmac));
 	bgmac->net_dev = net_dev;
-	bgmac->core = core;
-	bcma_set_drvdata(core, bgmac);
-	SET_NETDEV_DEV(net_dev, &core->dev);
-
-	/* Defaults */
-	memcpy(bgmac->net_dev->dev_addr, mac, ETH_ALEN);
-
-	/* On BCM4706 we need common core to access PHY */
-	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
-	    !core->bus->drv_gmac_cmn.core) {
-		dev_err(bgmac->dev, "GMAC CMN core not found (required for BCM4706)\n");
-		err = -ENODEV;
-		goto err_netdev_free;
-	}
-	bgmac->cmn = core->bus->drv_gmac_cmn.core;
-
-	switch (core->core_unit) {
-	case 0:
-		bgmac->phyaddr = sprom->et0phyaddr;
-		break;
-	case 1:
-		bgmac->phyaddr = sprom->et1phyaddr;
-		break;
-	case 2:
-		bgmac->phyaddr = sprom->et2phyaddr;
-		break;
-	}
-	bgmac->phyaddr &= BGMAC_PHY_MASK;
-	if (bgmac->phyaddr == BGMAC_PHY_MASK) {
-		dev_err(bgmac->dev, "No PHY found\n");
-		err = -ENODEV;
-		goto err_netdev_free;
+	net_dev->irq = bgmac->irq;
+	SET_NETDEV_DEV(net_dev, bgmac->dev);
+
+	if (!is_valid_ether_addr(bgmac->mac_addr)) {
+		dev_err(bgmac->dev, "Invalid MAC addr: %pM\n",
+			bgmac->mac_addr);
+		eth_random_addr(bgmac->mac_addr);
+		dev_warn(bgmac->dev, "Using random MAC: %pM\n",
+			 bgmac->mac_addr);
 	}
-	dev_info(bgmac->dev, "Found PHY addr: %d%s\n", bgmac->phyaddr,
-		 bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : "");
+	ether_addr_copy(net_dev->dev_addr, bgmac->mac_addr);
 
-	if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
-		dev_err(bgmac->dev, "PCI setup not implemented\n");
-		err = -ENOTSUPP;
-		goto err_netdev_free;
-	}
+	/* This (reset &) enable is not preset in specs or reference driver but
+	 * Broadcom does it in arch PCI code when enabling fake PCI device.
+	 */
+	bgmac_clk_enable(bgmac, 0);
 
 	bgmac_chip_reset(bgmac);
 
-	/* For Northstar, we have to take all GMAC core out of reset */
-	if (bgmac_is_bcm4707_family(bgmac)) {
-		struct bcma_device *ns_core;
-		int ns_gmac;
-
-		/* Northstar has 4 GMAC cores */
-		for (ns_gmac = 0; ns_gmac < 4; ns_gmac++) {
-			/* As Northstar requirement, we have to reset all GMACs
-			 * before accessing one. bgmac_chip_reset() call
-			 * bcma_core_enable() for this core. Then the other
-			 * three GMACs didn't reset.  We do it here.
-			 */
-			ns_core = bcma_find_core_unit(core->bus,
-						      BCMA_CORE_MAC_GBIT,
-						      ns_gmac);
-			if (ns_core && !bcma_core_is_enabled(ns_core))
-				bcma_core_enable(ns_core, 0);
-		}
-	}
-
 	err = bgmac_dma_alloc(bgmac);
 	if (err) {
 		dev_err(bgmac->dev, "Unable to alloc memory for DMA\n");
@@ -1582,103 +1477,15 @@ static int bgmac_probe(struct bcma_device *core)
 	if (bcm47xx_nvram_getenv("et0_no_txint", NULL, 0) == 0)
 		bgmac->int_mask &= ~BGMAC_IS_TX_MASK;
 
-	bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo &
-			       BGMAC_BFL_ENETROBO);
-	if (bgmac->has_robosw)
-		dev_warn(bgmac->dev, "Support for Roboswitch not implemented\n");
-
-	if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM)
-		dev_warn(bgmac->dev, "Support for ADMtek ethernet switch not implemented\n");
-
-	/* Feature Flags */
-	switch (core->bus->chipinfo.id) {
-	case BCMA_CHIP_ID_BCM5357:
-		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
-		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
-		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
-		bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
-		if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47186) {
-			bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
-			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
-		}
-		if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM5358)
-			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_EPHYRMII;
-		break;
-	case BCMA_CHIP_ID_BCM53572:
-		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
-		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
-		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
-		bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
-		if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47188) {
-			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
-			bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
-		}
-		break;
-	case BCMA_CHIP_ID_BCM4749:
-		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
-		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
-		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
-		bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
-		if (core->bus->chipinfo.pkg == 10) {
-			bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
-			bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
-		}
-		break;
-	case BCMA_CHIP_ID_BCM4716:
-		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
-		/* fallthrough */
-	case BCMA_CHIP_ID_BCM47162:
-		bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL2;
-		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
-		break;
-	/* bcm4707_family */
-	case BCMA_CHIP_ID_BCM4707:
-	case BCMA_CHIP_ID_BCM47094:
-	case BCMA_CHIP_ID_BCM53018:
-		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
-		bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
-		bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
-		break;
-	default:
-		bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
-		bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
-	}
-
-	if (!bgmac_is_bcm4707_family(bgmac) && core->id.rev > 2)
-		bgmac->feature_flags |= BGMAC_FEAT_MISC_PLL_REQ;
-
-	if (core->id.id == BCMA_CORE_4706_MAC_GBIT) {
-		bgmac->feature_flags |= BGMAC_FEAT_CMN_PHY_CTL;
-		bgmac->feature_flags |= BGMAC_FEAT_NO_CLR_MIB;
-	}
-
-	if (core->id.rev >= 4) {
-		bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
-		bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
-		bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
-	}
-
 	netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT);
 
-	if (!bgmac_is_bcm4707_family(bgmac)) {
-		struct mii_bus *mii_bus;
-
-		mii_bus = bcma_mdio_mii_register(core, bgmac->phyaddr);
-		if (!IS_ERR(mii_bus)) {
-			err = PTR_ERR(mii_bus);
-			goto err_dma_free;
-		}
-
-		bgmac->mii_bus = mii_bus;
-	}
-
 	if (!bgmac->mii_bus)
 		err = bgmac_phy_connect_direct(bgmac);
 	else
 		err = bgmac_phy_connect(bgmac);
 	if (err) {
 		dev_err(bgmac->dev, "Cannot connect to phy\n");
-		goto err_mii_unregister;
+		goto err_dma_free;
 	}
 
 	net_dev->features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
@@ -1697,56 +1504,24 @@ static int bgmac_probe(struct bcma_device *core)
 
 err_phy_disconnect:
 	phy_disconnect(net_dev->phydev);
-err_mii_unregister:
-	bcma_mdio_mii_unregister(bgmac->mii_bus);
 err_dma_free:
 	bgmac_dma_free(bgmac);
 err_netdev_free:
-	bcma_set_drvdata(core, NULL);
 	free_netdev(net_dev);
 
 	return err;
 }
+EXPORT_SYMBOL_GPL(bgmac_enet_probe);
 
-static void bgmac_remove(struct bcma_device *core)
+void bgmac_enet_remove(struct bgmac *bgmac)
 {
-	struct bgmac *bgmac = bcma_get_drvdata(core);
-
 	unregister_netdev(bgmac->net_dev);
 	phy_disconnect(bgmac->net_dev->phydev);
-	bcma_mdio_mii_unregister(bgmac->mii_bus);
 	netif_napi_del(&bgmac->napi);
 	bgmac_dma_free(bgmac);
-	bcma_set_drvdata(core, NULL);
 	free_netdev(bgmac->net_dev);
 }
-
-static struct bcma_driver bgmac_bcma_driver = {
-	.name		= KBUILD_MODNAME,
-	.id_table	= bgmac_bcma_tbl,
-	.probe		= bgmac_probe,
-	.remove		= bgmac_remove,
-};
-
-static int __init bgmac_init(void)
-{
-	int err;
-
-	err = bcma_driver_register(&bgmac_bcma_driver);
-	if (err)
-		return err;
-	pr_info("Broadcom 47xx GBit MAC driver loaded\n");
-
-	return 0;
-}
-
-static void __exit bgmac_exit(void)
-{
-	bcma_driver_unregister(&bgmac_bcma_driver);
-}
-
-module_init(bgmac_init)
-module_exit(bgmac_exit)
+EXPORT_SYMBOL_GPL(bgmac_enet_remove);
 
 MODULE_AUTHOR("Rafa? Mi?ecki");
 MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 89dfee1..24a25026 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -1,8 +1,6 @@
 #ifndef _BGMAC_H
 #define _BGMAC_H
 
-#include <linux/bcma/bcma.h>
-#include <linux/brcmphy.h>
 #include <linux/netdevice.h>
 
 #define BGMAC_DEV_CTL				0x000
@@ -442,11 +440,21 @@ struct bgmac_rx_header {
 };
 
 struct bgmac {
-	struct bcma_device *core;
-	struct bcma_device *cmn; /* Reference to CMN core for BCM4706 */
+	union {
+		struct {
+			void *base;
+			void *idm_base;
+		} plat;
+		struct {
+			struct bcma_device *core;
+			/* Reference to CMN core for BCM4706 */
+			struct bcma_device *cmn;
+		} bcma;
+	};
 
 	struct device *dev;
 	struct device *dma_dev;
+	unsigned char mac_addr[ETH_ALEN];
 	u32 feature_flags;
 
 	struct net_device *net_dev;
@@ -463,6 +471,7 @@ struct bgmac {
 	u32 mib_rx_regs[BGMAC_NUM_MIB_RX_REGS];
 
 	/* Int */
+	int irq;
 	u32 int_mask;
 
 	/* Current MAC state */
@@ -473,19 +482,71 @@ struct bgmac {
 	bool has_robosw;
 
 	bool loopback;
+
+	u32 (*read)(struct bgmac *bgmac, u16 offset);
+	void (*write)(struct bgmac *bgmac, u16 offset, u32 value);
+	u32 (*idm_read)(struct bgmac *bgmac, u16 offset);
+	void (*idm_write)(struct bgmac *bgmac, u16 offset, u32 value);
+	bool (*clk_enabled)(struct bgmac *bgmac);
+	void (*clk_enable)(struct bgmac *bgmac, u32 flags);
+	void (*cco_ctl_maskset)(struct bgmac *bgmac, u32 offset, u32 mask,
+				u32 set);
+	u32 (*get_bus_clock)(struct bgmac *bgmac);
+	void (*cmn_maskset32)(struct bgmac *bgmac, u16 offset, u32 mask,
+			      u32 set);
 };
 
+int bgmac_enet_probe(struct bgmac *info);
+void bgmac_enet_remove(struct bgmac *bgmac);
+
 struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr);
 void bcma_mdio_mii_unregister(struct mii_bus *mii_bus);
 
 static inline u32 bgmac_read(struct bgmac *bgmac, u16 offset)
 {
-	return bcma_read32(bgmac->core, offset);
+	return bgmac->read(bgmac, offset);
 }
 
 static inline void bgmac_write(struct bgmac *bgmac, u16 offset, u32 value)
 {
-	bcma_write32(bgmac->core, offset, value);
+	bgmac->write(bgmac, offset, value);
+}
+
+static inline u32 bgmac_idm_read(struct bgmac *bgmac, u16 offset)
+{
+	return bgmac->idm_read(bgmac, offset);
+}
+
+static inline void bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value)
+{
+	bgmac->idm_write(bgmac, offset, value);
+}
+
+static inline bool bgmac_clk_enabled(struct bgmac *bgmac)
+{
+	return bgmac->clk_enabled(bgmac);
+}
+
+static inline void bgmac_clk_enable(struct bgmac *bgmac, u32 flags)
+{
+	bgmac->clk_enable(bgmac, flags);
+}
+
+static inline void bgmac_cco_ctl_maskset(struct bgmac *bgmac, u32 offset,
+					 u32 mask, u32 set)
+{
+	bgmac->cco_ctl_maskset(bgmac, offset, mask, set);
+}
+
+static inline u32 bgmac_get_bus_clock(struct bgmac *bgmac)
+{
+	return bgmac->get_bus_clock(bgmac);
+}
+
+static inline void bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset,
+				       u32 mask, u32 set)
+{
+	bgmac->cmn_maskset32(bgmac, offset, mask, set);
 }
 
 static inline void bgmac_maskset(struct bgmac *bgmac, u16 offset, u32 mask,
-- 
1.9.1