generic: add b53 swconfig switch driver

Add swconfig switch driver for Broadcom BCM53XX switch chips. Supports
switches connected through MDIO, SPI or memory mapped registers, and
supports BCM5325, BCM539x, BCM531x5 and the BCM63XX internal switch
chips.

Tested are BCM5325 trough MDIO, BCM53115 through SPI, and BCM6328.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 35305

1 files changed, 1294 insertions, 0 deletions

diff --git a/target/linux/generic/files/drivers/net/phy/b53/b53_common.c b/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
new file mode 100644
index 0000000000..c1cf513266
--- /dev/null
+++ b/target/linux/generic/files/drivers/net/phy/b53/b53_common.c
@@ -0,0 +1,1294 @@
+/*
+ * B53 switch driver main logic
+ *
+ * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/switch.h>
+#include <linux/platform_data/b53.h>
+
+#include "b53_regs.h"
+#include "b53_priv.h"
+
+/* buffer size needed for displaying all MIBs with max'd values */
+#define B53_BUF_SIZE	1188
+
+struct b53_mib_desc {
+	u8 size;
+	u8 offset;
+	const char *name;
+};
+
+
+/* BCM5365 MIB counters */
+static const struct b53_mib_desc b53_mibs_65[] = {
+	{ 8, 0x00, "TxOctets" },
+	{ 4, 0x08, "TxDropPkts" },
+	{ 4, 0x10, "TxBroadcastPkts" },
+	{ 4, 0x14, "TxMulticastPkts" },
+	{ 4, 0x18, "TxUnicastPkts" },
+	{ 4, 0x1c, "TxCollisions" },
+	{ 4, 0x20, "TxSingleCollision" },
+	{ 4, 0x24, "TxMultipleCollision" },
+	{ 4, 0x28, "TxDeferredTransmit" },
+	{ 4, 0x2c, "TxLateCollision" },
+	{ 4, 0x30, "TxExcessiveCollision" },
+	{ 4, 0x38, "TxPausePkts" },
+	{ 8, 0x44, "RxOctets" },
+	{ 4, 0x4c, "RxUndersizePkts" },
+	{ 4, 0x50, "RxPausePkts" },
+	{ 4, 0x54, "Pkts64Octets" },
+	{ 4, 0x58, "Pkts65to127Octets" },
+	{ 4, 0x5c, "Pkts128to255Octets" },
+	{ 4, 0x60, "Pkts256to511Octets" },
+	{ 4, 0x64, "Pkts512to1023Octets" },
+	{ 4, 0x68, "Pkts1024to1522Octets" },
+	{ 4, 0x6c, "RxOversizePkts" },
+	{ 4, 0x70, "RxJabbers" },
+	{ 4, 0x74, "RxAlignmentErrors" },
+	{ 4, 0x78, "RxFCSErrors" },
+	{ 8, 0x7c, "RxGoodOctets" },
+	{ 4, 0x84, "RxDropPkts" },
+	{ 4, 0x88, "RxUnicastPkts" },
+	{ 4, 0x8c, "RxMulticastPkts" },
+	{ 4, 0x90, "RxBroadcastPkts" },
+	{ 4, 0x94, "RxSAChanges" },
+	{ 4, 0x98, "RxFragments" },
+	{ },
+};
+
+/* BCM63xx MIB counters */
+static const struct b53_mib_desc b53_mibs_63xx[] = {
+	{ 8, 0x00, "TxOctets" },
+	{ 4, 0x08, "TxDropPkts" },
+	{ 4, 0x0c, "TxQoSPkts" },
+	{ 4, 0x10, "TxBroadcastPkts" },
+	{ 4, 0x14, "TxMulticastPkts" },
+	{ 4, 0x18, "TxUnicastPkts" },
+	{ 4, 0x1c, "TxCollisions" },
+	{ 4, 0x20, "TxSingleCollision" },
+	{ 4, 0x24, "TxMultipleCollision" },
+	{ 4, 0x28, "TxDeferredTransmit" },
+	{ 4, 0x2c, "TxLateCollision" },
+	{ 4, 0x30, "TxExcessiveCollision" },
+	{ 4, 0x38, "TxPausePkts" },
+	{ 8, 0x3c, "TxQoSOctets" },
+	{ 8, 0x44, "RxOctets" },
+	{ 4, 0x4c, "RxUndersizePkts" },
+	{ 4, 0x50, "RxPausePkts" },
+	{ 4, 0x54, "Pkts64Octets" },
+	{ 4, 0x58, "Pkts65to127Octets" },
+	{ 4, 0x5c, "Pkts128to255Octets" },
+	{ 4, 0x60, "Pkts256to511Octets" },
+	{ 4, 0x64, "Pkts512to1023Octets" },
+	{ 4, 0x68, "Pkts1024to1522Octets" },
+	{ 4, 0x6c, "RxOversizePkts" },
+	{ 4, 0x70, "RxJabbers" },
+	{ 4, 0x74, "RxAlignmentErrors" },
+	{ 4, 0x78, "RxFCSErrors" },
+	{ 8, 0x7c, "RxGoodOctets" },
+	{ 4, 0x84, "RxDropPkts" },
+	{ 4, 0x88, "RxUnicastPkts" },
+	{ 4, 0x8c, "RxMulticastPkts" },
+	{ 4, 0x90, "RxBroadcastPkts" },
+	{ 4, 0x94, "RxSAChanges" },
+	{ 4, 0x98, "RxFragments" },
+	{ 4, 0xa0, "RxSymbolErrors" },
+	{ 4, 0xa4, "RxQoSPkts" },
+	{ 8, 0xa8, "RxQoSOctets" },
+	{ 4, 0xb0, "Pkts1523to2047Octets" },
+	{ 4, 0xb4, "Pkts2048to4095Octets" },
+	{ 4, 0xb8, "Pkts4096to8191Octets" },
+	{ 4, 0xbc, "Pkts8192to9728Octets" },
+	{ 4, 0xc0, "RxDiscarded" },
+	{ }
+};
+
+/* MIB counters */
+static const struct b53_mib_desc b53_mibs[] = {
+	{ 8, 0x00, "TxOctets" },
+	{ 4, 0x08, "TxDropPkts" },
+	{ 4, 0x10, "TxBroadcastPkts" },
+	{ 4, 0x14, "TxMulticastPkts" },
+	{ 4, 0x18, "TxUnicastPkts" },
+	{ 4, 0x1c, "TxCollisions" },
+	{ 4, 0x20, "TxSingleCollision" },
+	{ 4, 0x24, "TxMultipleCollision" },
+	{ 4, 0x28, "TxDeferredTransmit" },
+	{ 4, 0x2c, "TxLateCollision" },
+	{ 4, 0x30, "TxExcessiveCollision" },
+	{ 4, 0x38, "TxPausePkts" },
+	{ 8, 0x50, "RxOctets" },
+	{ 4, 0x58, "RxUndersizePkts" },
+	{ 4, 0x5c, "RxPausePkts" },
+	{ 4, 0x60, "Pkts64Octets" },
+	{ 4, 0x64, "Pkts65to127Octets" },
+	{ 4, 0x68, "Pkts128to255Octets" },
+	{ 4, 0x6c, "Pkts256to511Octets" },
+	{ 4, 0x70, "Pkts512to1023Octets" },
+	{ 4, 0x74, "Pkts1024to1522Octets" },
+	{ 4, 0x78, "RxOversizePkts" },
+	{ 4, 0x7c, "RxJabbers" },
+	{ 4, 0x80, "RxAlignmentErrors" },
+	{ 4, 0x84, "RxFCSErrors" },
+	{ 8, 0x88, "RxGoodOctets" },
+	{ 4, 0x90, "RxDropPkts" },
+	{ 4, 0x94, "RxUnicastPkts" },
+	{ 4, 0x98, "RxMulticastPkts" },
+	{ 4, 0x9c, "RxBroadcastPkts" },
+	{ 4, 0xa0, "RxSAChanges" },
+	{ 4, 0xa4, "RxFragments" },
+	{ 4, 0xa8, "RxJumboPkts" },
+	{ 4, 0xac, "RxSymbolErrors" },
+	{ 4, 0xc0, "RxDiscarded" },
+	{ }
+};
+
+static int b53_do_vlan_op(struct b53_device *dev, u8 op)
+{
+	unsigned int i;
+
+	b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op);
+
+	for (i = 0; i < 10; i++) {
+		u8 vta;
+
+		b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta);
+		if (!(vta & VTA_START_CMD))
+			return 0;
+
+		usleep_range(100, 200);
+	}
+
+	return -EIO;
+}
+
+static void b53_set_vlan_entry(struct b53_device *dev, u16 vid, u16 members,
+			       u16 untag)
+{
+	if (is5325(dev)) {
+		u32 entry = 0;
+
+		if (members)
+			entry = (untag << VA_UNTAG_S) | members | VA_VALID_25;
+
+		b53_write32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, entry);
+		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid |
+			    VTA_RW_STATE_WR | VTA_RW_OP_EN);
+	} else if (is5365(dev)) {
+		u16 entry = 0;
+
+		if (members)
+			entry = (untag << VA_UNTAG_S) | members | VA_VALID_65;
+
+		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, entry);
+		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid |
+			    VTA_RW_STATE_WR | VTA_RW_OP_EN);
+	} else {
+		b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid);
+		b53_write32(dev, B53_ARLIO_PAGE, dev->vta_regs[2],
+			    (untag << VTE_UNTAG_S) | members);
+
+		b53_do_vlan_op(dev, VTA_CMD_WRITE);
+	}
+}
+
+void b53_set_forwarding(struct b53_device *dev, int enable)
+{
+	u8 mgmt;
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+	if (enable)
+		mgmt |= SM_SW_FWD_EN;
+	else
+		mgmt &= ~SM_SW_FWD_EN;
+
+	b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+}
+
+static void b53_enable_vlan(struct b53_device *dev, int enable)
+{
+	u8 mgmt, vc0, vc1, vc4 = 0, vc5;
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+	b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0);
+	b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1);
+
+	if (is5325(dev) || is5365(dev)) {
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5);
+	} else if (is63xx(dev)) {
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4);
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5);
+	} else {
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4);
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5);
+	}
+
+	if (enable) {
+		if (!is63xx(dev))
+			mgmt |= SM_SW_FWD_MODE;
+
+		vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID;
+		vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN;
+		vc4 &= ~VC4_ING_VID_CHECK_MASK;
+		vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S;
+		vc5 |= VC5_DROP_VTABLE_MISS;
+
+		if (is5325(dev))
+			vc0 &= ~VC0_RESERVED_1;
+
+		if (is5325(dev) || is5365(dev))
+			vc1 |= VC1_RX_MCST_TAG_EN;
+
+		if (!is5325(dev) && !is5365(dev)) {
+			if (dev->allow_vid_4095)
+				vc5 |= VC5_VID_FFF_EN;
+			else
+				vc5 &= ~VC5_VID_FFF_EN;
+		}
+	} else {
+		mgmt &= ~SM_SW_FWD_MODE;
+		vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID);
+		vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN);
+		vc4 &= ~VC4_ING_VID_CHECK_MASK;
+		vc5 &= ~VC5_DROP_VTABLE_MISS;
+
+		if (is5325(dev) || is5365(dev))
+			vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S;
+		else
+			vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S;
+
+		if (is5325(dev) || is5365(dev))
+			vc1 &= ~VC1_RX_MCST_TAG_EN;
+
+		if (!is5325(dev) && !is5365(dev))
+			vc5 &= ~VC5_VID_FFF_EN;
+	}
+
+	b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0);
+	b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1);
+
+	if (is5325(dev) || is5365(dev)) {
+		/* enable the high 8 bit vid check on 5325 */
+		if (is5325(dev) && enable)
+			b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3,
+				   VC3_HIGH_8BIT_EN);
+		else
+			b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
+
+		b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4);
+		b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5);
+	} else if (is63xx(dev)) {
+		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0);
+		b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4);
+		b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5);
+	} else {
+		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0);
+		b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4);
+		b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5);
+	}
+
+	b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+}
+
+static int b53_set_jumbo(struct b53_device *dev, int enable, int allow_10_100)
+{
+	u32 port_mask = 0;
+	u16 max_size = JMS_MIN_SIZE;
+
+	if (is5325(dev) || is5365(dev))
+		return -EINVAL;
+
+	if (enable) {
+		port_mask = dev->enabled_ports;
+		max_size = JMS_MAX_SIZE;
+		if (allow_10_100)
+			port_mask |= JPM_10_100_JUMBO_EN;
+	}
+
+	b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask);
+	return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size);
+}
+
+static int b53_flush_arl(struct b53_device *dev)
+{
+	unsigned int i;
+
+	b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
+		   FAST_AGE_DONE | FAST_AGE_DYNAMIC | FAST_AGE_STATIC);
+
+	for (i = 0; i < 10; i++) {
+		u8 fast_age_ctrl;
+
+		b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
+			  &fast_age_ctrl);
+
+		if (!(fast_age_ctrl & FAST_AGE_DONE))
+			return 0;
+
+		mdelay(1);
+	}
+
+	pr_warn("time out while flushing ARL\n");
+
+	return -EINVAL;
+}
+
+static void b53_enable_ports(struct b53_device *dev)
+{
+	unsigned i;
+
+	b53_for_each_port(dev, i) {
+		u8 port_ctrl;
+		u16 pvlan_mask;
+
+		/* 
+		 * prevent leaking packets between wan and lan in unmanaged
+		 * mode through port vlans.
+		 */
+		if (dev->enable_vlan || is_cpu_port(dev, i))
+			pvlan_mask = 0x1ff;
+		else if (is531x5(dev))
+			/* BCM53115 may use a different port as cpu port */
+			pvlan_mask = BIT(dev->sw_dev.cpu_port);
+		else 
+			pvlan_mask = BIT(B53_CPU_PORT);
+
+		/* BCM5325 CPU port is at 8 */
+		if ((is5325(dev) || is5365(dev)) && i == B53_CPU_PORT_25)
+			i = B53_CPU_PORT;
+
+		if (dev->chip_id == BCM5398_DEVICE_ID && (i == 6 || i == 7))
+			/* disable unused ports 6 & 7 */
+			port_ctrl = PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE;
+		else if (i == B53_CPU_PORT)
+			port_ctrl = PORT_CTRL_RX_BCST_EN |
+				    PORT_CTRL_RX_MCST_EN |
+				    PORT_CTRL_RX_UCST_EN;
+		else
+			port_ctrl = 0;
+
+		b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i),
+			    pvlan_mask);
+
+		/* port state is handled by bcm63xx_enet driver */
+		if (!is63xx(dev))
+			b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(i),
+				   port_ctrl);
+	}
+}
+
+static void b53_enable_mib(struct b53_device *dev)
+{
+	u8 gc;
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_GLOBAL_CONFIG, &gc);
+
+	gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN);
+
+	b53_write8(dev, B53_CTRL_PAGE, B53_GLOBAL_CONFIG, gc);
+}
+
+static int b53_apply(struct b53_device *dev)
+{
+	int i;
+
+	/* clear all vlan entries */
+	if (is5325(dev) || is5365(dev)) {
+		for (i = 1; i < dev->sw_dev.vlans; i++)
+			b53_set_vlan_entry(dev, i, 0, 0);
+	} else {
+		b53_do_vlan_op(dev, VTA_CMD_CLEAR);
+	}
+
+	b53_enable_vlan(dev, dev->enable_vlan);
+
+	/* fill VLAN table */
+	if (dev->enable_vlan) {
+		for (i = 0; i < dev->sw_dev.vlans; i++) {
+			struct b53_vlan *vlan = &dev->vlans[i];
+
+			if (!vlan->members)
+				continue;
+
+			b53_set_vlan_entry(dev, i, vlan->members, vlan->untag);
+		}
+
+		b53_for_each_port(dev, i)
+			b53_write16(dev, B53_VLAN_PAGE,
+				    B53_VLAN_PORT_DEF_TAG(i),
+				    dev->ports[i].pvid);
+	} else {
+		b53_for_each_port(dev, i)
+			b53_write16(dev, B53_VLAN_PAGE,
+				    B53_VLAN_PORT_DEF_TAG(i), 1);
+
+	}
+
+	b53_enable_ports(dev);
+
+	if (!is5325(dev) && !is5365(dev))
+		b53_set_jumbo(dev, dev->enable_jumbo, 1);
+
+	return 0;
+}
+
+static int b53_switch_reset(struct b53_device *dev)
+{
+	u8 mgmt;
+
+	b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+	if (!(mgmt & SM_SW_FWD_EN)) {
+		mgmt &= ~SM_SW_FWD_MODE;
+		mgmt |= SM_SW_FWD_EN;
+
+		b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
+		b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt);
+
+		if (!(mgmt & SM_SW_FWD_EN)) {
+			pr_err("Failed to enable switch!\n");
+			return -EINVAL;
+		}
+	}
+
+	/* enable all ports */
+	b53_enable_ports(dev);
+
+	/* configure MII port if necessary */
+	if (is5325(dev)) {
+		u8 mii_port_override;
+
+		b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+			  &mii_port_override);
+		/* reverse mii needs to be enabled */
+		if (!(mii_port_override & PORT_OVERRIDE_RV_MII_25)) {
+			b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+				   mii_port_override | PORT_OVERRIDE_RV_MII_25);
+			b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+				  &mii_port_override);
+
+			if (!(mii_port_override & PORT_OVERRIDE_RV_MII_25)) {
+				pr_err("Failed to enable reverse MII mode\n");
+				return -EINVAL;
+			}
+		}
+	} else if (is531x5(dev) && dev->sw_dev.cpu_port == B53_CPU_PORT) {
+		u8 mii_port_override;
+
+		b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+			  &mii_port_override);
+		b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL,
+			   mii_port_override | PORT_OVERRIDE_EN |
+			   PORT_OVERRIDE_LINK);
+	}
+
+	b53_enable_mib(dev);
+
+	return b53_flush_arl(dev);
+}
+
+/*
+ * Swconfig glue functions
+ */
+
+static int b53_global_get_vlan_enable(struct switch_dev *dev,
+				      const struct switch_attr *attr,
+				      struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	val->value.i = priv->enable_vlan;
+
+	return 0;
+}
+
+static int b53_global_set_vlan_enable(struct switch_dev *dev,
+				      const struct switch_attr *attr,
+				      struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	priv->enable_vlan = val->value.i;
+
+	return 0;
+}
+
+static int b53_global_get_jumbo_enable(struct switch_dev *dev,
+				       const struct switch_attr *attr,
+				       struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	val->value.i = priv->enable_jumbo;
+
+	return 0;
+}
+
+static int b53_global_set_jumbo_enable(struct switch_dev *dev,
+				       const struct switch_attr *attr,
+				       struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	priv->enable_jumbo = val->value.i;
+
+	return 0;
+}
+
+static int b53_global_get_4095_enable(struct switch_dev *dev,
+				      const struct switch_attr *attr,
+				      struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	val->value.i = priv->allow_vid_4095;
+
+	return 0;
+}
+
+static int b53_global_set_4095_enable(struct switch_dev *dev,
+				      const struct switch_attr *attr,
+				      struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	priv->allow_vid_4095 = val->value.i;
+
+	return 0;
+}
+
+static int b53_global_get_ports(struct switch_dev *dev,
+				const struct switch_attr *attr,
+				struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	val->len = snprintf(priv->buf, B53_BUF_SIZE, "0x%04x",
+			    priv->enabled_ports);
+	val->value.s = priv->buf;
+
+	return 0;
+}
+
+static int b53_port_get_pvid(struct switch_dev *dev, int port, int *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	*val = priv->ports[port].pvid;
+
+	return 0;
+}
+
+static int b53_port_set_pvid(struct switch_dev *dev, int port, int val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	if (val > 15 && is5325(priv))
+		return -EINVAL;
+	if (val == 4095 && !priv->allow_vid_4095)
+		return -EINVAL;
+
+	priv->ports[port].pvid = val;
+
+	return 0;
+}
+
+static int b53_vlan_get_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+	struct switch_port *port = &val->value.ports[0];
+	struct b53_vlan *vlan = &priv->vlans[val->port_vlan];
+	int i;
+
+	val->len = 0;
+
+	if (!vlan->members)
+		return 0;
+
+	for (i = 0; i < dev->ports; i++) {
+		if (!(vlan->members & BIT(i)))
+			continue;
+
+
+		if (!(vlan->untag & BIT(i)))
+			port->flags = BIT(SWITCH_PORT_FLAG_TAGGED);
+		else
+			port->flags = 0;
+
+		port->id = i;
+		val->len++;
+		port++;
+	}
+
+	return 0;
+}
+
+static int b53_vlan_set_ports(struct switch_dev *dev, struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+	struct switch_port *port;
+	struct b53_vlan *vlan = &priv->vlans[val->port_vlan];
+	int i;
+
+	/* only BCM5325 and BCM5365 supports VID 0 */
+	if (val->port_vlan == 0 && !is5325(priv) && !is5365(priv))
+		return -EINVAL;
+
+	/* VLAN 4095 needs special handling */
+	if (val->port_vlan == 4095 && !priv->allow_vid_4095)
+		return -EINVAL;
+
+	port = &val->value.ports[0];
+	vlan->members = 0;
+	vlan->untag = 0;
+	for (i = 0; i < val->len; i++, port++) {
+		vlan->members |= BIT(port->id);
+
+		if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED))) {
+			vlan->untag |= BIT(port->id);
+			priv->ports[port->id].pvid = val->port_vlan;
+		};
+	}
+
+	/* ignore disabled ports */
+	vlan->members &= priv->enabled_ports;
+	vlan->untag &= priv->enabled_ports;
+
+	return 0;
+}
+
+static int b53_port_get_link(struct switch_dev *dev, int port,
+			     struct switch_port_link *link)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	if (is_cpu_port(priv, port)) {
+		link->link = 1;
+		link->duplex = 1;
+		link->speed = is5325(priv) || is5365(priv) ?
+				SWITCH_PORT_SPEED_100 : SWITCH_PORT_SPEED_1000;
+		link->aneg = 0;
+	} else if (priv->enabled_ports & BIT(port)) {
+		u32 speed;
+		u16 lnk, duplex;
+
+		b53_read16(priv, B53_STAT_PAGE, B53_LINK_STAT, &lnk);
+		b53_read16(priv, B53_STAT_PAGE, priv->duplex_reg, &duplex);
+
+		lnk = (lnk >> port) & 1;
+		duplex = (duplex >> port) & 1;
+
+		if (is5325(priv) || is5365(priv)) {
+			u16 tmp;
+
+			b53_read16(priv, B53_STAT_PAGE, B53_SPEED_STAT, &tmp);
+			speed = SPEED_PORT_FE(tmp, port);
+		} else {
+			b53_read32(priv, B53_STAT_PAGE, B53_SPEED_STAT, &speed);
+			speed = SPEED_PORT_GE(speed, port);
+		}
+
+		link->link = lnk;
+		if (lnk) {
+			link->duplex = duplex;
+			switch (speed) {
+			case SPEED_STAT_10M:
+				link->speed = SWITCH_PORT_SPEED_10;
+				break;
+			case SPEED_STAT_100M:
+				link->speed = SWITCH_PORT_SPEED_100;
+				break;
+			case SPEED_STAT_1000M:
+				link->speed = SWITCH_PORT_SPEED_1000;
+				break;
+			}
+		}
+
+		link->aneg = 1;
+	} else {
+		link->link = 0;
+	}
+
+	return 0;
+
+}
+
+static int b53_global_reset_switch(struct switch_dev *dev)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	/* reset vlans */
+	priv->enable_vlan = 0;
+	priv->enable_jumbo = 0;
+	priv->allow_vid_4095 = 0;
+
+	memset(priv->vlans, 0, sizeof(priv->vlans) * dev->vlans);
+	memset(priv->ports, 0, sizeof(priv->ports) * dev->ports);
+
+	return b53_switch_reset(priv);
+}
+
+static int b53_global_apply_config(struct switch_dev *dev)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+
+	/* disable switching */
+	b53_set_forwarding(priv, 0);
+
+	b53_apply(priv);
+
+	/* enable switching */
+	b53_set_forwarding(priv, 1);
+
+	return 0;
+}
+
+
+static int b53_global_reset_mib(struct switch_dev *dev,
+				const struct switch_attr *attr,
+				struct switch_val *val)
+{
+	struct b53_device *priv = sw_to_b53(dev);
+	u8 gc;
+
+	b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc);
+
+	b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB);
+	mdelay(1);
+	b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB);
+	mdelay(1);
+
+	return 0;
+}
+
+static int b53_port_get_mib(struct switch_dev *sw_dev,
+			    const struct switch_attr *attr,
+			    struct switch_val *val)
+{
+	struct b53_device *dev = sw_to_b53(sw_dev);
+	const struct b53_mib_desc *mibs;
+	int port = val->port_vlan;
+	int len = 0;
+
+	if (!(BIT(port) & dev->enabled_ports))
+		return -1;
+
+	if (is5365(dev)) {
+		if (port == 5)
+			port = 8;
+
+		mibs = b53_mibs_65;
+	} else if (is63xx(dev)) {
+		mibs = b53_mibs_63xx;
+	} else {
+		mibs = b53_mibs;
+	}
+
+	dev->buf[0] = 0;
+
+	for (; mibs->size > 0; mibs++) {
+		u64 val;
+
+		if (mibs->size == 8) {
+			b53_read64(dev, B53_MIB_PAGE(port), mibs->offset, &val);
+		} else {
+			u32 val32;
+
+			b53_read32(dev, B53_MIB_PAGE(port), mibs->offset,
+				   &val32);
+			val = val32;
+		}
+
+		len += snprintf(dev->buf + len, B53_BUF_SIZE - len,
+				"%-20s: %llu\n", mibs->name, val);
+	}
+
+	val->len = len;
+	val->value.s = dev->buf;
+
+	return 0;
+}
+
+static struct switch_attr b53_global_ops_25[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "Enable VLAN mode",
+		.set = b53_global_set_vlan_enable,
+		.get = b53_global_get_vlan_enable,
+		.max = 1,
+	},
+	{
+		.type = SWITCH_TYPE_STRING,
+		.name = "ports",
+		.description = "Available ports (as bitmask)",
+		.get = b53_global_get_ports,
+	},
+};
+
+static struct switch_attr b53_global_ops_65[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "Enable VLAN mode",
+		.set = b53_global_set_vlan_enable,
+		.get = b53_global_get_vlan_enable,
+		.max = 1,
+	},
+	{
+		.type = SWITCH_TYPE_STRING,
+		.name = "ports",
+		.description = "Available ports (as bitmask)",
+		.get = b53_global_get_ports,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "reset_mib",
+		.description = "Reset MIB counters",
+		.set = b53_global_reset_mib,
+	},
+};
+
+static struct switch_attr b53_global_ops[] = {
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_vlan",
+		.description = "Enable VLAN mode",
+		.set = b53_global_set_vlan_enable,
+		.get = b53_global_get_vlan_enable,
+		.max = 1,
+	},
+	{
+		.type = SWITCH_TYPE_STRING,
+		.name = "ports",
+		.description = "Available Ports (as bitmask)",
+		.get = b53_global_get_ports,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "reset_mib",
+		.description = "Reset MIB counters",
+		.set = b53_global_reset_mib,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "enable_jumbo",
+		.description = "Enable Jumbo Frames",
+		.set = b53_global_set_jumbo_enable,
+		.get = b53_global_get_jumbo_enable,
+		.max = 1,
+	},
+	{
+		.type = SWITCH_TYPE_INT,
+		.name = "allow_vid_4095",
+		.description = "Allow VID 4095",
+		.set = b53_global_set_4095_enable,
+		.get = b53_global_get_4095_enable,
+		.max = 1,
+	},
+};
+
+static struct switch_attr b53_port_ops[] = {
+	{
+		.type = SWITCH_TYPE_STRING,
+		.name = "mib",
+		.description = "Get port's MIB counters",
+		.get = b53_port_get_mib,
+	},
+};
+
+static struct switch_attr b53_no_ops[] = {
+};
+
+static const struct switch_dev_ops b53_switch_ops_25 = {
+	.attr_global = {
+		.attr = b53_global_ops_25,
+		.n_attr = ARRAY_SIZE(b53_global_ops_25),
+	},
+	.attr_port = {
+		.attr = b53_no_ops,
+		.n_attr = ARRAY_SIZE(b53_no_ops),
+	},
+	.attr_vlan = {
+		.attr = b53_no_ops,
+		.n_attr = ARRAY_SIZE(b53_no_ops),
+	},
+
+	.get_vlan_ports = b53_vlan_get_ports,
+	.set_vlan_ports = b53_vlan_set_ports,
+	.get_port_pvid = b53_port_get_pvid,
+	.set_port_pvid = b53_port_set_pvid,
+	.apply_config = b53_global_apply_config,
+	.reset_switch = b53_global_reset_switch,
+	.get_port_link = b53_port_get_link,
+};
+
+static const struct switch_dev_ops b53_switch_ops_65 = {
+	.attr_global = {
+		.attr = b53_global_ops_25,
+		.n_attr = ARRAY_SIZE(b53_global_ops_65),
+	},
+	.attr_port = {
+		.attr = b53_no_ops,
+		.n_attr = ARRAY_SIZE(b53_port_ops),
+	},
+	.attr_vlan = {
+		.attr = b53_no_ops,
+		.n_attr = ARRAY_SIZE(b53_no_ops),
+	},
+
+	.get_vlan_ports = b53_vlan_get_ports,
+	.set_vlan_ports = b53_vlan_set_ports,
+	.get_port_pvid = b53_port_get_pvid,
+	.set_port_pvid = b53_port_set_pvid,
+	.apply_config = b53_global_apply_config,
+	.reset_switch = b53_global_reset_switch,
+	.get_port_link = b53_port_get_link,
+};
+
+static const struct switch_dev_ops b53_switch_ops = {
+	.attr_global = {
+		.attr = b53_global_ops,
+		.n_attr = ARRAY_SIZE(b53_global_ops),
+	},
+	.attr_port = {
+		.attr = b53_port_ops,
+		.n_attr = ARRAY_SIZE(b53_port_ops),
+	},
+	.attr_vlan = {
+		.attr = b53_no_ops,
+		.n_attr = ARRAY_SIZE(b53_no_ops),
+	},
+
+	.get_vlan_ports = b53_vlan_get_ports,
+	.set_vlan_ports = b53_vlan_set_ports,
+	.get_port_pvid = b53_port_get_pvid,
+	.set_port_pvid = b53_port_set_pvid,
+	.apply_config = b53_global_apply_config,
+	.reset_switch = b53_global_reset_switch,
+	.get_port_link = b53_port_get_link,
+};
+
+struct b53_chip_data {
+	u32 chip_id;
+	const char *dev_name;
+	const char *alias;
+	u16 vlans;
+	u16 enabled_ports;
+	u8 cpu_port;
+	u8 vta_regs[3];
+	u8 duplex_reg;
+	u8 jumbo_pm_reg;
+	u8 jumbo_size_reg;
+	const struct switch_dev_ops *sw_ops;
+};
+
+#define B53_VTA_REGS	\
+	{ B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY }
+#define B53_VTA_REGS_9798 \
+	{ B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 }
+#define B53_VTA_REGS_63XX \
+	{ B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX }
+
+static const struct b53_chip_data b53_switch_chips[] = {
+	{
+		.chip_id = BCM5325_DEVICE_ID,
+		.dev_name = "BCM5325",
+		.alias = "bcm5325",
+		.vlans = 16,
+		.enabled_ports = 0x1f,
+		.cpu_port = B53_CPU_PORT_25,
+		.duplex_reg = B53_DUPLEX_STAT_FE,
+		.sw_ops = &b53_switch_ops_25,
+	},
+	{
+		.chip_id = BCM5365_DEVICE_ID,
+		.dev_name = "BCM5365",
+		.alias = "bcm5365",
+		.vlans = 256,
+		.enabled_ports = 0x1f,
+		.cpu_port = B53_CPU_PORT_25,
+		.duplex_reg = B53_DUPLEX_STAT_FE,
+		.sw_ops = &b53_switch_ops_65,
+	},
+	{
+		.chip_id = BCM5395_DEVICE_ID,
+		.dev_name = "BCM5395",
+		.alias = "bcm5395",
+		.vlans = 4096,
+		.enabled_ports = 0x1f,
+		.cpu_port = B53_CPU_PORT,
+		.vta_regs = B53_VTA_REGS,
+		.duplex_reg = B53_DUPLEX_STAT_GE,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+		.sw_ops = &b53_switch_ops,
+	},
+	{
+		.chip_id = BCM5397_DEVICE_ID,
+		.dev_name = "BCM5397",
+		.alias = "bcm5397",
+		.vlans = 4096,
+		.enabled_ports = 0x1f,
+		.cpu_port = B53_CPU_PORT,
+		.vta_regs = B53_VTA_REGS_9798,
+		.duplex_reg = B53_DUPLEX_STAT_GE,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+		.sw_ops = &b53_switch_ops,
+	},
+	{
+		.chip_id = BCM5398_DEVICE_ID,
+		.dev_name = "BCM5398",
+		.alias = "bcm5398",
+		.vlans = 4096,
+		.enabled_ports = 0x7f,
+		.cpu_port = B53_CPU_PORT,
+		.vta_regs = B53_VTA_REGS_9798,
+		.duplex_reg = B53_DUPLEX_STAT_GE,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+		.sw_ops = &b53_switch_ops,
+	},
+	{
+		.chip_id = BCM53115_DEVICE_ID,
+		.dev_name = "BCM53115",
+		.alias = "bcm53115",
+		.vlans = 4096,
+		.enabled_ports = 0x1f,
+		.vta_regs = B53_VTA_REGS,
+		.cpu_port = B53_CPU_PORT,
+		.duplex_reg = B53_DUPLEX_STAT_GE,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+		.sw_ops = &b53_switch_ops,
+	},
+	{
+		.chip_id = BCM53125_DEVICE_ID,
+		.dev_name = "BCM53125",
+		.alias = "bcm53125",
+		.vlans = 4096,
+		.enabled_ports = 0x1f,
+		.cpu_port = B53_CPU_PORT,
+		.vta_regs = B53_VTA_REGS,
+		.duplex_reg = B53_DUPLEX_STAT_GE,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE,
+		.sw_ops = &b53_switch_ops,
+	},
+	{
+		.chip_id = BCM63XX_DEVICE_ID,
+		.dev_name = "BCM63xx",
+		.alias = "bcm63xx",
+		.vlans = 4096,
+		.enabled_ports = 0, /* pdata must provide them */
+		.cpu_port = B53_CPU_PORT,
+		.vta_regs = B53_VTA_REGS_63XX,
+		.duplex_reg = B53_DUPLEX_STAT_63XX,
+		.jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX,
+		.jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX,
+		.sw_ops = &b53_switch_ops,
+	},
+};
+
+int b53_switch_init(struct b53_device *dev)
+{
+	struct switch_dev *sw_dev = &dev->sw_dev;
+	unsigned i;
+
+	for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) {
+		const struct b53_chip_data *chip = &b53_switch_chips[i];
+
+		if (chip->chip_id == dev->chip_id) {
+			sw_dev->name = chip->dev_name;
+			if (!sw_dev->alias)
+				sw_dev->alias = chip->alias;
+			if (!dev->enabled_ports)
+				dev->enabled_ports = chip->enabled_ports;
+			dev->duplex_reg = chip->duplex_reg;
+			dev->vta_regs[0] = chip->vta_regs[0];
+			dev->vta_regs[1] = chip->vta_regs[1];
+			dev->vta_regs[2] = chip->vta_regs[2];
+			dev->jumbo_pm_reg = chip->jumbo_pm_reg;
+			sw_dev->ops = chip->sw_ops;
+			sw_dev->cpu_port = chip->cpu_port;
+			sw_dev->vlans = chip->vlans;
+			break;
+		}
+	}
+
+	if (!sw_dev->name)
+		return -EINVAL;
+
+	/* check which BCM5325x version we have */
+	if (is5325(dev)) {
+		u8 vc4;
+
+		b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4);
+
+		/* check reserved bits */
+		switch (vc4 & 3) {
+		case 1:
+			/* BCM5325E */
+			break;
+		case 3:
+			/* BCM5325F - do not use port 4 */
+			dev->enabled_ports &= ~BIT(4);
+			break;
+		default:
+			/* BCM5325M */
+			return -EINVAL;
+		}
+	} else if (dev->chip_id == BCM53115_DEVICE_ID) {
+		u64 strap_value;
+
+		b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value);
+		/* use second IMP port if GMII is enabled */
+		if (strap_value & SV_GMII_CTRL_115)
+			sw_dev->cpu_port = 5;
+	}
+
+	/* cpu port is always last */
+	sw_dev->ports = sw_dev->cpu_port + 1;
+	dev->enabled_ports |= BIT(sw_dev->cpu_port);
+
+	dev->ports = devm_kzalloc(dev->dev,
+				  sizeof(struct b53_port) * sw_dev->ports,
+				  GFP_KERNEL);
+	if (!dev->ports)
+		return -ENOMEM;
+
+	dev->vlans = devm_kzalloc(dev->dev,
+				  sizeof(struct b53_vlan) * sw_dev->vlans,
+				  GFP_KERNEL);
+	if (!dev->vlans)
+		return -ENOMEM;
+
+	dev->buf = devm_kzalloc(dev->dev, B53_BUF_SIZE, GFP_KERNEL);
+	if (!dev->buf)
+		return -ENOMEM;
+
+	return b53_switch_reset(dev);
+}
+
+struct b53_device *b53_switch_alloc(struct device *base, struct b53_io_ops *ops,
+				    void *priv)
+{
+	struct b53_device *dev;
+
+	dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+
+	dev->dev = base;
+	dev->ops = ops;
+	dev->priv = priv;
+	mutex_init(&dev->reg_mutex);
+
+	return dev;
+}
+EXPORT_SYMBOL(b53_switch_alloc);
+
+int b53_switch_detect(struct b53_device *dev)
+{
+	u32 id32;
+	u16 tmp;
+	u8 id8;
+	int ret;
+
+	ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8);
+	if (ret)
+		return ret;
+
+	switch (id8) {
+	case 0:
+		/*
+		 * BCM5325 and BCM5365 do not have this register so reads
+		 * return 0. But the read operation did succeed, so assume
+		 * this is one of them.
+		 *
+		 * Next check if we can write to the 5325's VTA register; for
+		 * 5365 it is read only.
+		 */
+
+		b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf);
+		b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp);
+
+		if (tmp == 0xf)
+			dev->chip_id = BCM5325_DEVICE_ID;
+		else
+			dev->chip_id = BCM5365_DEVICE_ID;
+		break;
+	case BCM5395_DEVICE_ID:
+	case BCM5397_DEVICE_ID:
+	case BCM5398_DEVICE_ID:
+		dev->chip_id = id8;
+		break;
+	default:
+		ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32);
+		if (ret)
+			return ret;
+
+		switch (id32) {
+		case BCM53115_DEVICE_ID:
+		case BCM53125_DEVICE_ID:
+			dev->chip_id = id32;
+			break;
+		default:
+			pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n",
+			       id8, id32);
+			return -ENODEV;
+		}
+	}
+
+	return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID, &dev->core_rev);
+}
+EXPORT_SYMBOL(b53_switch_detect);
+
+int b53_switch_register(struct b53_device *dev)
+{
+	int ret;
+
+	if (dev->pdata) {
+		dev->chip_id = dev->pdata->chip_id;
+		dev->enabled_ports = dev->pdata->enabled_ports;
+		dev->sw_dev.alias = dev->pdata->alias;
+	}
+
+	if (!dev->chip_id && b53_switch_detect(dev))
+		return -EINVAL;
+
+	ret = b53_switch_init(dev);
+	if (ret)
+		return ret;
+
+	pr_info("found switch: %s, rev %i\n", dev->sw_dev.name, dev->core_rev);
+
+	return register_switch(&dev->sw_dev, NULL);
+}
+EXPORT_SYMBOL(b53_switch_register);
+
+MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>");
+MODULE_DESCRIPTION("B53 switch library");
+MODULE_LICENSE("Dual BSD/GPL");