2 * Driver for (BCM4706)? GBit MAC core on BCMA bus.
4 * Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com>
6 * Licensed under the GNU/GPL. See COPYING for details.
9 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
11 #include <linux/bcma/bcma.h>
12 #include <linux/brcmphy.h>
13 #include <linux/etherdevice.h>
14 #include <linux/of_net.h>
17 static inline bool bgmac_is_bcm4707_family(struct bcma_device *core)
19 switch (core->bus->chipinfo.id) {
20 case BCMA_CHIP_ID_BCM4707:
21 case BCMA_CHIP_ID_BCM47094:
22 case BCMA_CHIP_ID_BCM53018:
29 /**************************************************
31 **************************************************/
33 static u32 bcma_bgmac_read(struct bgmac *bgmac, u16 offset)
35 return bcma_read32(bgmac->bcma.core, offset);
38 static void bcma_bgmac_write(struct bgmac *bgmac, u16 offset, u32 value)
40 bcma_write32(bgmac->bcma.core, offset, value);
43 static u32 bcma_bgmac_idm_read(struct bgmac *bgmac, u16 offset)
45 return bcma_aread32(bgmac->bcma.core, offset);
48 static void bcma_bgmac_idm_write(struct bgmac *bgmac, u16 offset, u32 value)
50 return bcma_awrite32(bgmac->bcma.core, offset, value);
53 static bool bcma_bgmac_clk_enabled(struct bgmac *bgmac)
55 return bcma_core_is_enabled(bgmac->bcma.core);
58 static void bcma_bgmac_clk_enable(struct bgmac *bgmac, u32 flags)
60 bcma_core_enable(bgmac->bcma.core, flags);
63 static void bcma_bgmac_cco_ctl_maskset(struct bgmac *bgmac, u32 offset,
66 struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
68 bcma_chipco_chipctl_maskset(cc, offset, mask, set);
71 static u32 bcma_bgmac_get_bus_clock(struct bgmac *bgmac)
73 struct bcma_drv_cc *cc = &bgmac->bcma.core->bus->drv_cc;
75 return bcma_pmu_get_bus_clock(cc);
78 static void bcma_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset, u32 mask,
81 bcma_maskset32(bgmac->bcma.cmn, offset, mask, set);
84 static const struct bcma_device_id bgmac_bcma_tbl[] = {
85 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT,
86 BCMA_ANY_REV, BCMA_ANY_CLASS),
87 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_MAC_GBIT, BCMA_ANY_REV,
91 MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
93 /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
94 static int bgmac_probe(struct bcma_device *core)
96 struct bcma_chipinfo *ci = &core->bus->chipinfo;
97 struct ssb_sprom *sprom = &core->bus->sprom;
98 struct mii_bus *mii_bus;
100 const u8 *mac = NULL;
103 bgmac = kzalloc(sizeof(*bgmac), GFP_KERNEL);
107 bgmac->bcma.core = core;
108 bgmac->dev = &core->dev;
109 bgmac->dma_dev = core->dma_dev;
110 bgmac->irq = core->irq;
112 bcma_set_drvdata(core, bgmac);
114 if (bgmac->dev->of_node)
115 mac = of_get_mac_address(bgmac->dev->of_node);
117 /* If no MAC address assigned via device tree, check SPROM */
119 switch (core->core_unit) {
130 dev_err(bgmac->dev, "Unsupported core_unit %d\n",
137 ether_addr_copy(bgmac->mac_addr, mac);
139 /* On BCM4706 we need common core to access PHY */
140 if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
141 !core->bus->drv_gmac_cmn.core) {
142 dev_err(bgmac->dev, "GMAC CMN core not found (required for BCM4706)\n");
146 bgmac->bcma.cmn = core->bus->drv_gmac_cmn.core;
148 switch (core->core_unit) {
150 bgmac->phyaddr = sprom->et0phyaddr;
153 bgmac->phyaddr = sprom->et1phyaddr;
156 bgmac->phyaddr = sprom->et2phyaddr;
159 bgmac->phyaddr &= BGMAC_PHY_MASK;
160 if (bgmac->phyaddr == BGMAC_PHY_MASK) {
161 dev_err(bgmac->dev, "No PHY found\n");
165 dev_info(bgmac->dev, "Found PHY addr: %d%s\n", bgmac->phyaddr,
166 bgmac->phyaddr == BGMAC_PHY_NOREGS ? " (NOREGS)" : "");
168 if (!bgmac_is_bcm4707_family(core) &&
169 !(ci->id == BCMA_CHIP_ID_BCM53573 && core->core_unit == 1)) {
170 mii_bus = bcma_mdio_mii_register(core, bgmac->phyaddr);
171 if (IS_ERR(mii_bus)) {
172 err = PTR_ERR(mii_bus);
176 bgmac->mii_bus = mii_bus;
179 if (core->bus->hosttype == BCMA_HOSTTYPE_PCI) {
180 dev_err(bgmac->dev, "PCI setup not implemented\n");
185 bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo &
187 if (bgmac->has_robosw)
188 dev_warn(bgmac->dev, "Support for Roboswitch not implemented\n");
190 if (core->bus->sprom.boardflags_lo & BGMAC_BFL_ENETADM)
191 dev_warn(bgmac->dev, "Support for ADMtek ethernet switch not implemented\n");
194 switch (core->bus->chipinfo.id) {
195 case BCMA_CHIP_ID_BCM5357:
196 bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
197 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
198 bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
199 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
200 if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47186) {
201 bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
202 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
204 if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM5358)
205 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_EPHYRMII;
207 case BCMA_CHIP_ID_BCM53572:
208 bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
209 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
210 bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
211 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
212 if (core->bus->chipinfo.pkg == BCMA_PKG_ID_BCM47188) {
213 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
214 bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
217 case BCMA_CHIP_ID_BCM4749:
218 bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
219 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
220 bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL1;
221 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_PHY;
222 if (core->bus->chipinfo.pkg == 10) {
223 bgmac->feature_flags |= BGMAC_FEAT_SW_TYPE_RGMII;
224 bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
227 case BCMA_CHIP_ID_BCM4716:
228 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
230 case BCMA_CHIP_ID_BCM47162:
231 bgmac->feature_flags |= BGMAC_FEAT_FLW_CTRL2;
232 bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
235 case BCMA_CHIP_ID_BCM4707:
236 case BCMA_CHIP_ID_BCM47094:
237 case BCMA_CHIP_ID_BCM53018:
238 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
239 bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
240 bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
242 case BCMA_CHIP_ID_BCM53573:
243 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
244 bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
245 if (ci->pkg == BCMA_PKG_ID_BCM47189)
246 bgmac->feature_flags |= BGMAC_FEAT_IOST_ATTACHED;
247 if (core->core_unit == 0) {
248 bgmac->feature_flags |= BGMAC_FEAT_CC4_IF_SW_TYPE;
249 if (ci->pkg == BCMA_PKG_ID_BCM47189)
250 bgmac->feature_flags |=
251 BGMAC_FEAT_CC4_IF_SW_TYPE_RGMII;
252 } else if (core->core_unit == 1) {
253 bgmac->feature_flags |= BGMAC_FEAT_IRQ_ID_OOB_6;
254 bgmac->feature_flags |= BGMAC_FEAT_CC7_IF_TYPE_RGMII;
258 bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
259 bgmac->feature_flags |= BGMAC_FEAT_SET_RXQ_CLK;
262 if (!bgmac_is_bcm4707_family(core) && core->id.rev > 2)
263 bgmac->feature_flags |= BGMAC_FEAT_MISC_PLL_REQ;
265 if (core->id.id == BCMA_CORE_4706_MAC_GBIT) {
266 bgmac->feature_flags |= BGMAC_FEAT_CMN_PHY_CTL;
267 bgmac->feature_flags |= BGMAC_FEAT_NO_CLR_MIB;
270 if (core->id.rev >= 4) {
271 bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
272 bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
273 bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
276 bgmac->read = bcma_bgmac_read;
277 bgmac->write = bcma_bgmac_write;
278 bgmac->idm_read = bcma_bgmac_idm_read;
279 bgmac->idm_write = bcma_bgmac_idm_write;
280 bgmac->clk_enabled = bcma_bgmac_clk_enabled;
281 bgmac->clk_enable = bcma_bgmac_clk_enable;
282 bgmac->cco_ctl_maskset = bcma_bgmac_cco_ctl_maskset;
283 bgmac->get_bus_clock = bcma_bgmac_get_bus_clock;
284 bgmac->cmn_maskset32 = bcma_bgmac_cmn_maskset32;
286 err = bgmac_enet_probe(bgmac);
293 bcma_mdio_mii_unregister(bgmac->mii_bus);
296 bcma_set_drvdata(core, NULL);
301 static void bgmac_remove(struct bcma_device *core)
303 struct bgmac *bgmac = bcma_get_drvdata(core);
305 bcma_mdio_mii_unregister(bgmac->mii_bus);
306 bgmac_enet_remove(bgmac);
307 bcma_set_drvdata(core, NULL);
311 static struct bcma_driver bgmac_bcma_driver = {
312 .name = KBUILD_MODNAME,
313 .id_table = bgmac_bcma_tbl,
314 .probe = bgmac_probe,
315 .remove = bgmac_remove,
318 static int __init bgmac_init(void)
322 err = bcma_driver_register(&bgmac_bcma_driver);
325 pr_info("Broadcom 47xx GBit MAC driver loaded\n");
330 static void __exit bgmac_exit(void)
332 bcma_driver_unregister(&bgmac_bcma_driver);
335 module_init(bgmac_init)
336 module_exit(bgmac_exit)
338 MODULE_AUTHOR("Rafał Miłecki");
339 MODULE_LICENSE("GPL");