[mirror_ubuntu-zesty-kernel.git] / drivers / net / ethernet / broadcom / bgmac-bcma.c

/*
 * Driver for (BCM4706)? GBit MAC core on BCMA bus.
 *
 * Copyright (C) 2012 Rafał Miłecki <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("Rafał Miłecki");
MODULE_LICENSE("GPL");
Commit	Line	Data
f6a95a24 JM	1	/*
	2	* Driver for (BCM4706)? GBit MAC core on BCMA bus.
	3	*
	4	* Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com>
	5	*
	6	* Licensed under the GNU/GPL. See COPYING for details.
	7	*/
	8
	9	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	10
	11	#include <linux/bcma/bcma.h>
	12	#include <linux/brcmphy.h>
	13	#include <linux/etherdevice.h>
	14	#include "bgmac.h"
	15
	16	static inline bool bgmac_is_bcm4707_family(struct bcma_device *core)
	17	{
	18	switch (core->bus->chipinfo.id) {
	19	case BCMA_CHIP_ID_BCM4707:
	20	case BCMA_CHIP_ID_BCM47094:
	21	case BCMA_CHIP_ID_BCM53018:
	22	return true;
	23	default:
	24	return false;
	25	}
	26	}
	27
	28	/**************************************************
	29	* BCMA bus ops
	30	**************************************************/
	31
	32	static u32 bcma_bgmac_read(struct bgmac *bgmac, u16 offset)
	33	{
	34	return bcma_read32(bgmac->bcma.core, offset);
	35	}
	36
	37	static void bcma_bgmac_write(struct bgmac *bgmac, u16 offset, u32 value)
	38	{
	39	bcma_write32(bgmac->bcma.core, offset, value);
	40	}
	41
	42	static u32 bcma_bgmac_idm_read(struct bgmac *bgmac, u16 offset)
	43	{
	44	return bcma_aread32(bgmac->bcma.core, offset);
	45	}
	46
	47	static void bcma_bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value)
	48	{
	49	return bcma_awrite32(bgmac->bcma.core, offset, value);
	50	}
	51
	52	static bool bcma_bgmac_clk_enabled(struct bgmac *bgmac)
	53	{
	54	return bcma_core_is_enabled(bgmac->bcma.core);
	55	}
	56
	57	static void bcma_bgmac_clk_enable(struct bgmac *bgmac, u32 flags)
	58	{
	59	bcma_core_enable(bgmac->bcma.core, flags);
	60	}
	61
	62	static void bcma_bgmac_cco_ctl_maskset(struct bgmac *bgmac, u32 offset,
	63	u32 mask, u32 set)
	64	{
65	struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
66
67	bcma_chipco_chipctl_maskset(cc, offset, mask, set);
68	}
69
70	static u32 bcma_bgmac_get_bus_clock(struct bgmac *bgmac)
71	{
72	struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
73
74	return bcma_pmu_get_bus_clock(cc);
75	}
76
77	static void bcma_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset, u32 mask,
78	u32 set)
79	{
80	bcma_maskset32(bgmac->bcma.cmn, offset, mask, set);
81	}
82
83	static const struct bcma_device_id bgmac_bcma_tbl[] = {
84	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT,
85	BCMA_ANY_REV, BCMA_ANY_CLASS),
86	BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_MAC_GBIT, BCMA_ANY_REV,
87	BCMA_ANY_CLASS),
88	{},
89	};
90	MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
91
92	/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
93	static int bgmac_probe(struct bcma_device *core)
94	{
95	struct ssb_sprom *sprom = &core->bus->sprom;
96	struct mii_bus *mii_bus;
97	struct bgmac *bgmac;
98	u8 *mac;
99	int err;
100
101	bgmac = kzalloc(sizeof(*bgmac), GFP_KERNEL);
102	if (!bgmac)
103	return -ENOMEM;
104
105	bgmac->bcma.core = core;
106	bgmac->dev = &core->dev;
107	bgmac->dma_dev = core->dma_dev;
108	bgmac->irq = core->irq;
109
110	bcma_set_drvdata(core, bgmac);
111
112	switch (core->core_unit) {
113	case 0:
114	mac = sprom->et0mac;
115	break;
116	case 1:
117	mac = sprom->et1mac;
118	break;
119	case 2:
120	mac = sprom->et2mac;
121	break;
122	default:
123	dev_err(bgmac->dev, "Unsupported core_unit %d\n",
124	core->core_unit);
125	err = -ENOTSUPP;
126	goto err;
127	}
128
129	ether_addr_copy(bgmac->mac_addr, mac);
130
131	/* On BCM4706 we need common core to access PHY */
132	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
133	!core->bus->drv_gmac_cmn.core) {
134	dev_err(bgmac->dev, "GMAC CMN core not found (required for BCM4706)\n");
135	err = -ENODEV;
136	goto err;
137	}
138	bgmac->bcma.cmn = core->bus->drv_gmac_cmn.core;
139
140	switch (core->core_unit) {
141	case 0:
142	bgmac->phyaddr = sprom->et0phyaddr;
143	break;
144	case 1:
145	bgmac->phyaddr = sprom->et1phyaddr;
146	break;
147	case 2:
148	bgmac->phyaddr = sprom->et2phyaddr;
149	break;
150	}
151	bgmac->phyaddr &= BGMAC_PHY_MASK;
152	if (bgmac->phyaddr == BGMAC_PHY_MASK) {
153	dev_err(bgmac->dev, "No PHY found\n");
154	err = -ENODEV;
155	goto err;
156	}
157	dev_info(bgmac->dev, "Found PHY addr: %d%s\n", bgmac->phyaddr,
158	bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : "");
159
160	if (!bgmac_is_bcm4707_family(core)) {
161	mii_bus = bcma_mdio_mii_register(core, bgmac->phyaddr);
b9f63ae7	162	if (IS_ERR(mii_bus)) {
f6a95a24 JM	163	err = PTR_ERR(mii_bus);
	164	goto err;
	165	}
	166
	167	bgmac->mii_bus = mii_bus;
	168	}
	169
	170	if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
	171	dev_err(bgmac->dev, "PCI setup not implemented\n");
	172	err = -ENOTSUPP;
	173	goto err1;
	174	}
	175
	176	bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo &
	177	BGMAC_BFL_ENETROBO);
	178	if (bgmac->has_robosw)
	179	dev_warn(bgmac->dev, "Support for Roboswitch not implemented\n");
	180
	181	if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM)
	182	dev_warn(bgmac->dev, "Support for ADMtek ethernet switch not implemented\n");
	183
	184	/* Feature Flags */
	185	switch (core->bus->chipinfo.id) {
	186	case BCMA_CHIP_ID_BCM5357:
	187	bgmac->feature_flags \|= BGMAC_FEAT_SET_RXQ_CLK;
	188	bgmac->feature_flags \|= BGMAC_FEAT_CLKCTLST;
	189	bgmac->feature_flags \|= BGMAC_FEAT_FLW_CTRL1;
	190	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_PHY;
	191	if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47186) {
	192	bgmac->feature_flags \|= BGMAC_FEAT_IOST_ATTACHED;
	193	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_RGMII;
	194	}
	195	if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM5358)
	196	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_EPHYRMII;
	197	break;
	198	case BCMA_CHIP_ID_BCM53572:
	199	bgmac->feature_flags \|= BGMAC_FEAT_SET_RXQ_CLK;
	200	bgmac->feature_flags \|= BGMAC_FEAT_CLKCTLST;
	201	bgmac->feature_flags \|= BGMAC_FEAT_FLW_CTRL1;
	202	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_PHY;
	203	if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47188) {
	204	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_RGMII;
	205	bgmac->feature_flags \|= BGMAC_FEAT_IOST_ATTACHED;
	206	}
	207	break;
	208	case BCMA_CHIP_ID_BCM4749:
	209	bgmac->feature_flags \|= BGMAC_FEAT_SET_RXQ_CLK;
	210	bgmac->feature_flags \|= BGMAC_FEAT_CLKCTLST;
	211	bgmac->feature_flags \|= BGMAC_FEAT_FLW_CTRL1;
	212	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_PHY;
	213	if (core->bus->chipinfo.pkg == 10) {
	214	bgmac->feature_flags \|= BGMAC_FEAT_SW_TYPE_RGMII;
	215	bgmac->feature_flags \|= BGMAC_FEAT_IOST_ATTACHED;
	216	}
	217	break;
	218	case BCMA_CHIP_ID_BCM4716:
	219	bgmac->feature_flags \|= BGMAC_FEAT_CLKCTLST;
	220	/* fallthrough */
	221	case BCMA_CHIP_ID_BCM47162:
	222	bgmac->feature_flags \|= BGMAC_FEAT_FLW_CTRL2;
	223	bgmac->feature_flags \|= BGMAC_FEAT_SET_RXQ_CLK;
	224	break;
	225	/* bcm4707_family */
	226	case BCMA_CHIP_ID_BCM4707:
227	case BCMA_CHIP_ID_BCM47094:
228	case BCMA_CHIP_ID_BCM53018:
229	bgmac->feature_flags \|= BGMAC_FEAT_CLKCTLST;
230	bgmac->feature_flags \|= BGMAC_FEAT_NO_RESET;
231	bgmac->feature_flags \|= BGMAC_FEAT_FORCE_SPEED_2500;
232	break;
233	default:
234	bgmac->feature_flags \|= BGMAC_FEAT_CLKCTLST;
235	bgmac->feature_flags \|= BGMAC_FEAT_SET_RXQ_CLK;
236	}
237
238	if (!bgmac_is_bcm4707_family(core) && core->id.rev > 2)
239	bgmac->feature_flags \|= BGMAC_FEAT_MISC_PLL_REQ;
240
241	if (core->id.id == BCMA_CORE_4706_MAC_GBIT) {
242	bgmac->feature_flags \|= BGMAC_FEAT_CMN_PHY_CTL;
243	bgmac->feature_flags \|= BGMAC_FEAT_NO_CLR_MIB;
244	}
245
246	if (core->id.rev >= 4) {
247	bgmac->feature_flags \|= BGMAC_FEAT_CMDCFG_SR_REV4;
248	bgmac->feature_flags \|= BGMAC_FEAT_TX_MASK_SETUP;
249	bgmac->feature_flags \|= BGMAC_FEAT_RX_MASK_SETUP;
250	}
251
252	bgmac->read = bcma_bgmac_read;
253	bgmac->write = bcma_bgmac_write;
254	bgmac->idm_read = bcma_bgmac_idm_read;
255	bgmac->idm_write = bcma_bgmac_idm_write;
256	bgmac->clk_enabled = bcma_bgmac_clk_enabled;
257	bgmac->clk_enable = bcma_bgmac_clk_enable;
258	bgmac->cco_ctl_maskset = bcma_bgmac_cco_ctl_maskset;
259	bgmac->get_bus_clock = bcma_bgmac_get_bus_clock;
260	bgmac->cmn_maskset32 = bcma_bgmac_cmn_maskset32;
261
262	err = bgmac_enet_probe(bgmac);
263	if (err)
264	goto err1;
265
266	return 0;
267
268	err1:
269	bcma_mdio_mii_unregister(bgmac->mii_bus);
270	err:
271	kfree(bgmac);
272	bcma_set_drvdata(core, NULL);
273
274	return err;
275	}
276
277	static void bgmac_remove(struct bcma_device *core)
278	{
279	struct bgmac *bgmac = bcma_get_drvdata(core);
280
281	bcma_mdio_mii_unregister(bgmac->mii_bus);
282	bgmac_enet_remove(bgmac);
283	bcma_set_drvdata(core, NULL);
284	kfree(bgmac);
285	}
286
287	static struct bcma_driver bgmac_bcma_driver = {
288	.name = KBUILD_MODNAME,
289	.id_table = bgmac_bcma_tbl,
290	.probe = bgmac_probe,
291	.remove = bgmac_remove,
292	};
293
294	static int __init bgmac_init(void)
295	{
296	int err;
297
298	err = bcma_driver_register(&bgmac_bcma_driver);
299	if (err)
300	return err;
301	pr_info("Broadcom 47xx GBit MAC driver loaded\n");
302
303	return 0;
304	}
305
306	static void __exit bgmac_exit(void)
307	{
308	bcma_driver_unregister(&bgmac_bcma_driver);
309	}
310
311	module_init(bgmac_init)
312	module_exit(bgmac_exit)
313
314	MODULE_AUTHOR("Rafał Miłecki");
315	MODULE_LICENSE("GPL");