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8#include <linux/list.h>
9#include <linux/module.h>
10#include <linux/netdevice.h>
11#include <linux/interrupt.h>
12#include <linux/platform_device.h>
13#include <linux/phy.h>
14#include <linux/phy_fixed.h>
15#include <linux/phylink.h>
16#include <linux/mii.h>
17#include <linux/of.h>
18#include <linux/of_irq.h>
19#include <linux/of_address.h>
20#include <linux/of_net.h>
21#include <linux/of_mdio.h>
22#include <net/dsa.h>
23#include <linux/ethtool.h>
24#include <linux/if_bridge.h>
25#include <linux/brcmphy.h>
26#include <linux/etherdevice.h>
27#include <linux/platform_data/b53.h>
28
29#include "bcm_sf2.h"
30#include "bcm_sf2_regs.h"
31#include "b53/b53_priv.h"
32#include "b53/b53_regs.h"
33
34static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port)
35{
36 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
37 unsigned int i;
38 u32 reg, offset;
39
40 if (priv->type == BCM7445_DEVICE_ID)
41 offset = CORE_STS_OVERRIDE_IMP;
42 else
43 offset = CORE_STS_OVERRIDE_IMP2;
44
45
46 reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
47 reg &= ~P_TXQ_PSM_VDD(port);
48 core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
49
50
51 reg = core_readl(priv, CORE_IMP_CTL);
52 reg |= (RX_BCST_EN | RX_MCST_EN | RX_UCST_EN);
53 reg &= ~(RX_DIS | TX_DIS);
54 core_writel(priv, reg, CORE_IMP_CTL);
55
56
57 core_writel(priv, SW_FWDG_EN, CORE_SWMODE);
58
59
60 reg = core_readl(priv, CORE_SWITCH_CTRL);
61 reg |= MII_DUMB_FWDG_EN;
62 core_writel(priv, reg, CORE_SWITCH_CTRL);
63
64
65
66
67 reg = core_readl(priv, CORE_PORT_TC2_QOS_MAP_PORT(port));
68 for (i = 0; i < SF2_NUM_EGRESS_QUEUES; i++)
69 reg |= i << (PRT_TO_QID_SHIFT * i);
70 core_writel(priv, reg, CORE_PORT_TC2_QOS_MAP_PORT(port));
71
72 b53_brcm_hdr_setup(ds, port);
73
74
75 reg = core_readl(priv, offset);
76 reg |= (MII_SW_OR | LINK_STS);
77 core_writel(priv, reg, offset);
78}
79
80static void bcm_sf2_gphy_enable_set(struct dsa_switch *ds, bool enable)
81{
82 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
83 u32 reg;
84
85 reg = reg_readl(priv, REG_SPHY_CNTRL);
86 if (enable) {
87 reg |= PHY_RESET;
88 reg &= ~(EXT_PWR_DOWN | IDDQ_BIAS | IDDQ_GLOBAL_PWR | CK25_DIS);
89 reg_writel(priv, reg, REG_SPHY_CNTRL);
90 udelay(21);
91 reg = reg_readl(priv, REG_SPHY_CNTRL);
92 reg &= ~PHY_RESET;
93 } else {
94 reg |= EXT_PWR_DOWN | IDDQ_BIAS | PHY_RESET;
95 reg_writel(priv, reg, REG_SPHY_CNTRL);
96 mdelay(1);
97 reg |= CK25_DIS;
98 }
99 reg_writel(priv, reg, REG_SPHY_CNTRL);
100
101
102 if (!enable) {
103 reg = reg_readl(priv, REG_LED_CNTRL(0));
104 reg |= SPDLNK_SRC_SEL;
105 reg_writel(priv, reg, REG_LED_CNTRL(0));
106 }
107}
108
109static inline void bcm_sf2_port_intr_enable(struct bcm_sf2_priv *priv,
110 int port)
111{
112 unsigned int off;
113
114 switch (port) {
115 case 7:
116 off = P7_IRQ_OFF;
117 break;
118 case 0:
119
120 intrl2_0_mask_clear(priv, P_IRQ_MASK(P0_IRQ_OFF));
121 return;
122 default:
123 off = P_IRQ_OFF(port);
124 break;
125 }
126
127 intrl2_1_mask_clear(priv, P_IRQ_MASK(off));
128}
129
130static inline void bcm_sf2_port_intr_disable(struct bcm_sf2_priv *priv,
131 int port)
132{
133 unsigned int off;
134
135 switch (port) {
136 case 7:
137 off = P7_IRQ_OFF;
138 break;
139 case 0:
140
141 intrl2_0_mask_set(priv, P_IRQ_MASK(P0_IRQ_OFF));
142 intrl2_0_writel(priv, P_IRQ_MASK(P0_IRQ_OFF), INTRL2_CPU_CLEAR);
143 return;
144 default:
145 off = P_IRQ_OFF(port);
146 break;
147 }
148
149 intrl2_1_mask_set(priv, P_IRQ_MASK(off));
150 intrl2_1_writel(priv, P_IRQ_MASK(off), INTRL2_CPU_CLEAR);
151}
152
153static int bcm_sf2_port_setup(struct dsa_switch *ds, int port,
154 struct phy_device *phy)
155{
156 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
157 unsigned int i;
158 u32 reg;
159
160
161 reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
162 reg &= ~P_TXQ_PSM_VDD(port);
163 core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
164
165
166 reg = core_readl(priv, CORE_DIS_LEARN);
167 reg &= ~BIT(port);
168 core_writel(priv, reg, CORE_DIS_LEARN);
169
170
171 if (priv->brcm_tag_mask & BIT(port))
172 b53_brcm_hdr_setup(ds, port);
173
174
175
176
177 reg = core_readl(priv, CORE_PORT_TC2_QOS_MAP_PORT(port));
178 for (i = 0; i < SF2_NUM_EGRESS_QUEUES; i++)
179 reg |= i << (PRT_TO_QID_SHIFT * i);
180 core_writel(priv, reg, CORE_PORT_TC2_QOS_MAP_PORT(port));
181
182
183 if (priv->int_phy_mask & 1 << port && priv->hw_params.num_gphy == 1) {
184 bcm_sf2_gphy_enable_set(ds, true);
185 if (phy) {
186
187
188
189
190
191
192
193
194
195 phy->state = PHY_READY;
196 phy_init_hw(phy);
197 }
198 }
199
200
201 if (port == priv->moca_port)
202 bcm_sf2_port_intr_enable(priv, port);
203
204
205 core_writel(priv, 32, CORE_TXQ_THD_PAUSE_QN_PORT(port));
206
207
208 for (i = 0; i < SF2_NUM_EGRESS_QUEUES; i++) {
209 reg = acb_readl(priv, ACB_QUEUE_CFG(port *
210 SF2_NUM_EGRESS_QUEUES + i));
211 reg &= ~XOFF_THRESHOLD_MASK;
212 reg |= 24;
213 acb_writel(priv, reg, ACB_QUEUE_CFG(port *
214 SF2_NUM_EGRESS_QUEUES + i));
215 }
216
217 return b53_enable_port(ds, port, phy);
218}
219
220static void bcm_sf2_port_disable(struct dsa_switch *ds, int port)
221{
222 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
223 u32 reg;
224
225
226 if (priv->wol_ports_mask & (1 << port)) {
227 reg = core_readl(priv, CORE_DIS_LEARN);
228 reg |= BIT(port);
229 core_writel(priv, reg, CORE_DIS_LEARN);
230 return;
231 }
232
233 if (port == priv->moca_port)
234 bcm_sf2_port_intr_disable(priv, port);
235
236 if (priv->int_phy_mask & 1 << port && priv->hw_params.num_gphy == 1)
237 bcm_sf2_gphy_enable_set(ds, false);
238
239 b53_disable_port(ds, port);
240
241
242 reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL);
243 reg |= P_TXQ_PSM_VDD(port);
244 core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL);
245}
246
247
248static int bcm_sf2_sw_indir_rw(struct bcm_sf2_priv *priv, int op, int addr,
249 int regnum, u16 val)
250{
251 int ret = 0;
252 u32 reg;
253
254 reg = reg_readl(priv, REG_SWITCH_CNTRL);
255 reg |= MDIO_MASTER_SEL;
256 reg_writel(priv, reg, REG_SWITCH_CNTRL);
257
258
259 reg = 0x70;
260 reg <<= 2;
261 core_writel(priv, addr, reg);
262
263
264 reg = 0x80 << 8 | regnum << 1;
265 reg <<= 2;
266
267 if (op)
268 ret = core_readl(priv, reg);
269 else
270 core_writel(priv, val, reg);
271
272 reg = reg_readl(priv, REG_SWITCH_CNTRL);
273 reg &= ~MDIO_MASTER_SEL;
274 reg_writel(priv, reg, REG_SWITCH_CNTRL);
275
276 return ret & 0xffff;
277}
278
279static int bcm_sf2_sw_mdio_read(struct mii_bus *bus, int addr, int regnum)
280{
281 struct bcm_sf2_priv *priv = bus->priv;
282
283
284
285
286 if (addr == BRCM_PSEUDO_PHY_ADDR && priv->indir_phy_mask & BIT(addr))
287 return bcm_sf2_sw_indir_rw(priv, 1, addr, regnum, 0);
288 else
289 return mdiobus_read_nested(priv->master_mii_bus, addr, regnum);
290}
291
292static int bcm_sf2_sw_mdio_write(struct mii_bus *bus, int addr, int regnum,
293 u16 val)
294{
295 struct bcm_sf2_priv *priv = bus->priv;
296
297
298
299
300 if (addr == BRCM_PSEUDO_PHY_ADDR && priv->indir_phy_mask & BIT(addr))
301 return bcm_sf2_sw_indir_rw(priv, 0, addr, regnum, val);
302 else
303 return mdiobus_write_nested(priv->master_mii_bus, addr,
304 regnum, val);
305}
306
307static irqreturn_t bcm_sf2_switch_0_isr(int irq, void *dev_id)
308{
309 struct dsa_switch *ds = dev_id;
310 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
311
312 priv->irq0_stat = intrl2_0_readl(priv, INTRL2_CPU_STATUS) &
313 ~priv->irq0_mask;
314 intrl2_0_writel(priv, priv->irq0_stat, INTRL2_CPU_CLEAR);
315
316 return IRQ_HANDLED;
317}
318
319static irqreturn_t bcm_sf2_switch_1_isr(int irq, void *dev_id)
320{
321 struct dsa_switch *ds = dev_id;
322 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
323
324 priv->irq1_stat = intrl2_1_readl(priv, INTRL2_CPU_STATUS) &
325 ~priv->irq1_mask;
326 intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR);
327
328 if (priv->irq1_stat & P_LINK_UP_IRQ(P7_IRQ_OFF)) {
329 priv->port_sts[7].link = true;
330 dsa_port_phylink_mac_change(ds, 7, true);
331 }
332 if (priv->irq1_stat & P_LINK_DOWN_IRQ(P7_IRQ_OFF)) {
333 priv->port_sts[7].link = false;
334 dsa_port_phylink_mac_change(ds, 7, false);
335 }
336
337 return IRQ_HANDLED;
338}
339
340static int bcm_sf2_sw_rst(struct bcm_sf2_priv *priv)
341{
342 unsigned int timeout = 1000;
343 u32 reg;
344
345 reg = core_readl(priv, CORE_WATCHDOG_CTRL);
346 reg |= SOFTWARE_RESET | EN_CHIP_RST | EN_SW_RESET;
347 core_writel(priv, reg, CORE_WATCHDOG_CTRL);
348
349 do {
350 reg = core_readl(priv, CORE_WATCHDOG_CTRL);
351 if (!(reg & SOFTWARE_RESET))
352 break;
353
354 usleep_range(1000, 2000);
355 } while (timeout-- > 0);
356
357 if (timeout == 0)
358 return -ETIMEDOUT;
359
360 return 0;
361}
362
363static void bcm_sf2_intr_disable(struct bcm_sf2_priv *priv)
364{
365 intrl2_0_mask_set(priv, 0xffffffff);
366 intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
367 intrl2_1_mask_set(priv, 0xffffffff);
368 intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
369}
370
371static void bcm_sf2_identify_ports(struct bcm_sf2_priv *priv,
372 struct device_node *dn)
373{
374 struct device_node *port;
375 int mode;
376 unsigned int port_num;
377
378 priv->moca_port = -1;
379
380 for_each_available_child_of_node(dn, port) {
381 if (of_property_read_u32(port, "reg", &port_num))
382 continue;
383
384
385
386
387
388
389 mode = of_get_phy_mode(port);
390 if (mode < 0)
391 continue;
392
393 if (mode == PHY_INTERFACE_MODE_INTERNAL)
394 priv->int_phy_mask |= 1 << port_num;
395
396 if (mode == PHY_INTERFACE_MODE_MOCA)
397 priv->moca_port = port_num;
398
399 if (of_property_read_bool(port, "brcm,use-bcm-hdr"))
400 priv->brcm_tag_mask |= 1 << port_num;
401 }
402}
403
404static int bcm_sf2_mdio_register(struct dsa_switch *ds)
405{
406 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
407 struct device_node *dn;
408 static int index;
409 int err;
410
411
412 dn = of_find_compatible_node(NULL, NULL, "brcm,unimac-mdio");
413 priv->master_mii_bus = of_mdio_find_bus(dn);
414 if (!priv->master_mii_bus)
415 return -EPROBE_DEFER;
416
417 get_device(&priv->master_mii_bus->dev);
418 priv->master_mii_dn = dn;
419
420 priv->slave_mii_bus = devm_mdiobus_alloc(ds->dev);
421 if (!priv->slave_mii_bus)
422 return -ENOMEM;
423
424 priv->slave_mii_bus->priv = priv;
425 priv->slave_mii_bus->name = "sf2 slave mii";
426 priv->slave_mii_bus->read = bcm_sf2_sw_mdio_read;
427 priv->slave_mii_bus->write = bcm_sf2_sw_mdio_write;
428 snprintf(priv->slave_mii_bus->id, MII_BUS_ID_SIZE, "sf2-%d",
429 index++);
430 priv->slave_mii_bus->dev.of_node = dn;
431
432
433
434
435
436
437
438
439
440
441
442 if (of_machine_is_compatible("brcm,bcm7445d0"))
443 priv->indir_phy_mask |= (1 << BRCM_PSEUDO_PHY_ADDR);
444 else
445 priv->indir_phy_mask = 0;
446
447 ds->phys_mii_mask = priv->indir_phy_mask;
448 ds->slave_mii_bus = priv->slave_mii_bus;
449 priv->slave_mii_bus->parent = ds->dev->parent;
450 priv->slave_mii_bus->phy_mask = ~priv->indir_phy_mask;
451
452 err = of_mdiobus_register(priv->slave_mii_bus, dn);
453 if (err && dn)
454 of_node_put(dn);
455
456 return err;
457}
458
459static void bcm_sf2_mdio_unregister(struct bcm_sf2_priv *priv)
460{
461 mdiobus_unregister(priv->slave_mii_bus);
462 of_node_put(priv->master_mii_dn);
463}
464
465static u32 bcm_sf2_sw_get_phy_flags(struct dsa_switch *ds, int port)
466{
467 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
468
469
470
471
472
473
474 return priv->hw_params.gphy_rev;
475}
476
477static void bcm_sf2_sw_validate(struct dsa_switch *ds, int port,
478 unsigned long *supported,
479 struct phylink_link_state *state)
480{
481 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
482
483 if (!phy_interface_mode_is_rgmii(state->interface) &&
484 state->interface != PHY_INTERFACE_MODE_MII &&
485 state->interface != PHY_INTERFACE_MODE_REVMII &&
486 state->interface != PHY_INTERFACE_MODE_GMII &&
487 state->interface != PHY_INTERFACE_MODE_INTERNAL &&
488 state->interface != PHY_INTERFACE_MODE_MOCA) {
489 bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS);
490 dev_err(ds->dev,
491 "Unsupported interface: %d\n", state->interface);
492 return;
493 }
494
495
496 phylink_set(mask, Autoneg);
497 phylink_set_port_modes(mask);
498 phylink_set(mask, Pause);
499 phylink_set(mask, Asym_Pause);
500
501
502
503
504 if (state->interface != PHY_INTERFACE_MODE_MII &&
505 state->interface != PHY_INTERFACE_MODE_REVMII) {
506 phylink_set(mask, 1000baseT_Full);
507 phylink_set(mask, 1000baseT_Half);
508 }
509
510 phylink_set(mask, 10baseT_Half);
511 phylink_set(mask, 10baseT_Full);
512 phylink_set(mask, 100baseT_Half);
513 phylink_set(mask, 100baseT_Full);
514
515 bitmap_and(supported, supported, mask,
516 __ETHTOOL_LINK_MODE_MASK_NBITS);
517 bitmap_and(state->advertising, state->advertising, mask,
518 __ETHTOOL_LINK_MODE_MASK_NBITS);
519}
520
521static void bcm_sf2_sw_mac_config(struct dsa_switch *ds, int port,
522 unsigned int mode,
523 const struct phylink_link_state *state)
524{
525 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
526 u32 id_mode_dis = 0, port_mode;
527 u32 reg, offset;
528
529 if (priv->type == BCM7445_DEVICE_ID)
530 offset = CORE_STS_OVERRIDE_GMIIP_PORT(port);
531 else
532 offset = CORE_STS_OVERRIDE_GMIIP2_PORT(port);
533
534 switch (state->interface) {
535 case PHY_INTERFACE_MODE_RGMII:
536 id_mode_dis = 1;
537
538 case PHY_INTERFACE_MODE_RGMII_TXID:
539 port_mode = EXT_GPHY;
540 break;
541 case PHY_INTERFACE_MODE_MII:
542 port_mode = EXT_EPHY;
543 break;
544 case PHY_INTERFACE_MODE_REVMII:
545 port_mode = EXT_REVMII;
546 break;
547 default:
548
549 goto force_link;
550 }
551
552
553
554
555 reg = reg_readl(priv, REG_RGMII_CNTRL_P(port));
556 reg &= ~ID_MODE_DIS;
557 reg &= ~(PORT_MODE_MASK << PORT_MODE_SHIFT);
558 reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN);
559
560 reg |= port_mode;
561 if (id_mode_dis)
562 reg |= ID_MODE_DIS;
563
564 if (state->pause & MLO_PAUSE_TXRX_MASK) {
565 if (state->pause & MLO_PAUSE_TX)
566 reg |= TX_PAUSE_EN;
567 reg |= RX_PAUSE_EN;
568 }
569
570 reg_writel(priv, reg, REG_RGMII_CNTRL_P(port));
571
572force_link:
573
574 reg = SW_OVERRIDE;
575 switch (state->speed) {
576 case SPEED_1000:
577 reg |= SPDSTS_1000 << SPEED_SHIFT;
578 break;
579 case SPEED_100:
580 reg |= SPDSTS_100 << SPEED_SHIFT;
581 break;
582 }
583
584 if (state->link)
585 reg |= LINK_STS;
586 if (state->duplex == DUPLEX_FULL)
587 reg |= DUPLX_MODE;
588
589 core_writel(priv, reg, offset);
590}
591
592static void bcm_sf2_sw_mac_link_set(struct dsa_switch *ds, int port,
593 phy_interface_t interface, bool link)
594{
595 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
596 u32 reg;
597
598 if (!phy_interface_mode_is_rgmii(interface) &&
599 interface != PHY_INTERFACE_MODE_MII &&
600 interface != PHY_INTERFACE_MODE_REVMII)
601 return;
602
603
604 reg = reg_readl(priv, REG_RGMII_CNTRL_P(port));
605 if (link)
606 reg |= RGMII_MODE_EN;
607 else
608 reg &= ~RGMII_MODE_EN;
609 reg_writel(priv, reg, REG_RGMII_CNTRL_P(port));
610}
611
612static void bcm_sf2_sw_mac_link_down(struct dsa_switch *ds, int port,
613 unsigned int mode,
614 phy_interface_t interface)
615{
616 bcm_sf2_sw_mac_link_set(ds, port, interface, false);
617}
618
619static void bcm_sf2_sw_mac_link_up(struct dsa_switch *ds, int port,
620 unsigned int mode,
621 phy_interface_t interface,
622 struct phy_device *phydev)
623{
624 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
625 struct ethtool_eee *p = &priv->dev->ports[port].eee;
626
627 bcm_sf2_sw_mac_link_set(ds, port, interface, true);
628
629 if (mode == MLO_AN_PHY && phydev)
630 p->eee_enabled = b53_eee_init(ds, port, phydev);
631}
632
633static void bcm_sf2_sw_fixed_state(struct dsa_switch *ds, int port,
634 struct phylink_link_state *status)
635{
636 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
637
638 status->link = false;
639
640
641
642
643
644
645
646
647
648 if (port == priv->moca_port) {
649 status->link = priv->port_sts[port].link;
650
651
652
653
654
655 if (!status->link)
656 netif_carrier_off(ds->ports[port].slave);
657 status->duplex = DUPLEX_FULL;
658 } else {
659 status->link = true;
660 }
661}
662
663static void bcm_sf2_enable_acb(struct dsa_switch *ds)
664{
665 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
666 u32 reg;
667
668
669 reg = acb_readl(priv, ACB_CONTROL);
670 reg |= (ACB_FLUSH_MASK << ACB_FLUSH_SHIFT);
671 acb_writel(priv, reg, ACB_CONTROL);
672 reg &= ~(ACB_FLUSH_MASK << ACB_FLUSH_SHIFT);
673 reg |= ACB_EN | ACB_ALGORITHM;
674 acb_writel(priv, reg, ACB_CONTROL);
675}
676
677static int bcm_sf2_sw_suspend(struct dsa_switch *ds)
678{
679 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
680 unsigned int port;
681
682 bcm_sf2_intr_disable(priv);
683
684
685
686
687
688 for (port = 0; port < ds->num_ports; port++) {
689 if (dsa_is_user_port(ds, port) || dsa_is_cpu_port(ds, port))
690 bcm_sf2_port_disable(ds, port);
691 }
692
693 return 0;
694}
695
696static int bcm_sf2_sw_resume(struct dsa_switch *ds)
697{
698 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
699 int ret;
700
701 ret = bcm_sf2_sw_rst(priv);
702 if (ret) {
703 pr_err("%s: failed to software reset switch\n", __func__);
704 return ret;
705 }
706
707 ret = bcm_sf2_cfp_resume(ds);
708 if (ret)
709 return ret;
710
711 if (priv->hw_params.num_gphy == 1)
712 bcm_sf2_gphy_enable_set(ds, true);
713
714 ds->ops->setup(ds);
715
716 return 0;
717}
718
719static void bcm_sf2_sw_get_wol(struct dsa_switch *ds, int port,
720 struct ethtool_wolinfo *wol)
721{
722 struct net_device *p = ds->ports[port].cpu_dp->master;
723 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
724 struct ethtool_wolinfo pwol = { };
725
726
727 if (p->ethtool_ops->get_wol)
728 p->ethtool_ops->get_wol(p, &pwol);
729
730
731 wol->supported = pwol.supported;
732 memset(&wol->sopass, 0, sizeof(wol->sopass));
733
734 if (pwol.wolopts & WAKE_MAGICSECURE)
735 memcpy(&wol->sopass, pwol.sopass, sizeof(wol->sopass));
736
737 if (priv->wol_ports_mask & (1 << port))
738 wol->wolopts = pwol.wolopts;
739 else
740 wol->wolopts = 0;
741}
742
743static int bcm_sf2_sw_set_wol(struct dsa_switch *ds, int port,
744 struct ethtool_wolinfo *wol)
745{
746 struct net_device *p = ds->ports[port].cpu_dp->master;
747 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
748 s8 cpu_port = ds->ports[port].cpu_dp->index;
749 struct ethtool_wolinfo pwol = { };
750
751 if (p->ethtool_ops->get_wol)
752 p->ethtool_ops->get_wol(p, &pwol);
753 if (wol->wolopts & ~pwol.supported)
754 return -EINVAL;
755
756 if (wol->wolopts)
757 priv->wol_ports_mask |= (1 << port);
758 else
759 priv->wol_ports_mask &= ~(1 << port);
760
761
762
763
764
765 if (priv->wol_ports_mask && priv->wol_ports_mask != (1 << cpu_port))
766 priv->wol_ports_mask |= (1 << cpu_port);
767 else
768 priv->wol_ports_mask &= ~(1 << cpu_port);
769
770 return p->ethtool_ops->set_wol(p, wol);
771}
772
773static int bcm_sf2_sw_setup(struct dsa_switch *ds)
774{
775 struct bcm_sf2_priv *priv = bcm_sf2_to_priv(ds);
776 unsigned int port;
777
778
779 for (port = 0; port < priv->hw_params.num_ports; port++) {
780
781 if (dsa_is_user_port(ds, port))
782 bcm_sf2_port_setup(ds, port, NULL);
783 else if (dsa_is_cpu_port(ds, port))
784 bcm_sf2_imp_setup(ds, port);
785 else
786 bcm_sf2_port_disable(ds, port);
787 }
788
789 b53_configure_vlan(ds);
790 bcm_sf2_enable_acb(ds);
791
792 return 0;
793}
794
795
796
797
798
799#define SF2_PAGE_REG_MKADDR(page, reg) ((page) << 10 | (reg) << 2)
800
801static int bcm_sf2_core_read8(struct b53_device *dev, u8 page, u8 reg,
802 u8 *val)
803{
804 struct bcm_sf2_priv *priv = dev->priv;
805
806 *val = core_readl(priv, SF2_PAGE_REG_MKADDR(page, reg));
807
808 return 0;
809}
810
811static int bcm_sf2_core_read16(struct b53_device *dev, u8 page, u8 reg,
812 u16 *val)
813{
814 struct bcm_sf2_priv *priv = dev->priv;
815
816 *val = core_readl(priv, SF2_PAGE_REG_MKADDR(page, reg));
817
818 return 0;
819}
820
821static int bcm_sf2_core_read32(struct b53_device *dev, u8 page, u8 reg,
822 u32 *val)
823{
824 struct bcm_sf2_priv *priv = dev->priv;
825
826 *val = core_readl(priv, SF2_PAGE_REG_MKADDR(page, reg));
827
828 return 0;
829}
830
831static int bcm_sf2_core_read64(struct b53_device *dev, u8 page, u8 reg,
832 u64 *val)
833{
834 struct bcm_sf2_priv *priv = dev->priv;
835
836 *val = core_readq(priv, SF2_PAGE_REG_MKADDR(page, reg));
837
838 return 0;
839}
840
841static int bcm_sf2_core_write8(struct b53_device *dev, u8 page, u8 reg,
842 u8 value)
843{
844 struct bcm_sf2_priv *priv = dev->priv;
845
846 core_writel(priv, value, SF2_PAGE_REG_MKADDR(page, reg));
847
848 return 0;
849}
850
851static int bcm_sf2_core_write16(struct b53_device *dev, u8 page, u8 reg,
852 u16 value)
853{
854 struct bcm_sf2_priv *priv = dev->priv;
855
856 core_writel(priv, value, SF2_PAGE_REG_MKADDR(page, reg));
857
858 return 0;
859}
860
861static int bcm_sf2_core_write32(struct b53_device *dev, u8 page, u8 reg,
862 u32 value)
863{
864 struct bcm_sf2_priv *priv = dev->priv;
865
866 core_writel(priv, value, SF2_PAGE_REG_MKADDR(page, reg));
867
868 return 0;
869}
870
871static int bcm_sf2_core_write64(struct b53_device *dev, u8 page, u8 reg,
872 u64 value)
873{
874 struct bcm_sf2_priv *priv = dev->priv;
875
876 core_writeq(priv, value, SF2_PAGE_REG_MKADDR(page, reg));
877
878 return 0;
879}
880
881static const struct b53_io_ops bcm_sf2_io_ops = {
882 .read8 = bcm_sf2_core_read8,
883 .read16 = bcm_sf2_core_read16,
884 .read32 = bcm_sf2_core_read32,
885 .read48 = bcm_sf2_core_read64,
886 .read64 = bcm_sf2_core_read64,
887 .write8 = bcm_sf2_core_write8,
888 .write16 = bcm_sf2_core_write16,
889 .write32 = bcm_sf2_core_write32,
890 .write48 = bcm_sf2_core_write64,
891 .write64 = bcm_sf2_core_write64,
892};
893
894static void bcm_sf2_sw_get_strings(struct dsa_switch *ds, int port,
895 u32 stringset, uint8_t *data)
896{
897 int cnt = b53_get_sset_count(ds, port, stringset);
898
899 b53_get_strings(ds, port, stringset, data);
900 bcm_sf2_cfp_get_strings(ds, port, stringset,
901 data + cnt * ETH_GSTRING_LEN);
902}
903
904static void bcm_sf2_sw_get_ethtool_stats(struct dsa_switch *ds, int port,
905 uint64_t *data)
906{
907 int cnt = b53_get_sset_count(ds, port, ETH_SS_STATS);
908
909 b53_get_ethtool_stats(ds, port, data);
910 bcm_sf2_cfp_get_ethtool_stats(ds, port, data + cnt);
911}
912
913static int bcm_sf2_sw_get_sset_count(struct dsa_switch *ds, int port,
914 int sset)
915{
916 int cnt = b53_get_sset_count(ds, port, sset);
917
918 if (cnt < 0)
919 return cnt;
920
921 cnt += bcm_sf2_cfp_get_sset_count(ds, port, sset);
922
923 return cnt;
924}
925
926static const struct dsa_switch_ops bcm_sf2_ops = {
927 .get_tag_protocol = b53_get_tag_protocol,
928 .setup = bcm_sf2_sw_setup,
929 .get_strings = bcm_sf2_sw_get_strings,
930 .get_ethtool_stats = bcm_sf2_sw_get_ethtool_stats,
931 .get_sset_count = bcm_sf2_sw_get_sset_count,
932 .get_ethtool_phy_stats = b53_get_ethtool_phy_stats,
933 .get_phy_flags = bcm_sf2_sw_get_phy_flags,
934 .phylink_validate = bcm_sf2_sw_validate,
935 .phylink_mac_config = bcm_sf2_sw_mac_config,
936 .phylink_mac_link_down = bcm_sf2_sw_mac_link_down,
937 .phylink_mac_link_up = bcm_sf2_sw_mac_link_up,
938 .phylink_fixed_state = bcm_sf2_sw_fixed_state,
939 .suspend = bcm_sf2_sw_suspend,
940 .resume = bcm_sf2_sw_resume,
941 .get_wol = bcm_sf2_sw_get_wol,
942 .set_wol = bcm_sf2_sw_set_wol,
943 .port_enable = bcm_sf2_port_setup,
944 .port_disable = bcm_sf2_port_disable,
945 .get_mac_eee = b53_get_mac_eee,
946 .set_mac_eee = b53_set_mac_eee,
947 .port_bridge_join = b53_br_join,
948 .port_bridge_leave = b53_br_leave,
949 .port_stp_state_set = b53_br_set_stp_state,
950 .port_fast_age = b53_br_fast_age,
951 .port_vlan_filtering = b53_vlan_filtering,
952 .port_vlan_prepare = b53_vlan_prepare,
953 .port_vlan_add = b53_vlan_add,
954 .port_vlan_del = b53_vlan_del,
955 .port_fdb_dump = b53_fdb_dump,
956 .port_fdb_add = b53_fdb_add,
957 .port_fdb_del = b53_fdb_del,
958 .get_rxnfc = bcm_sf2_get_rxnfc,
959 .set_rxnfc = bcm_sf2_set_rxnfc,
960 .port_mirror_add = b53_mirror_add,
961 .port_mirror_del = b53_mirror_del,
962};
963
964struct bcm_sf2_of_data {
965 u32 type;
966 const u16 *reg_offsets;
967 unsigned int core_reg_align;
968 unsigned int num_cfp_rules;
969};
970
971
972static const u16 bcm_sf2_7445_reg_offsets[] = {
973 [REG_SWITCH_CNTRL] = 0x00,
974 [REG_SWITCH_STATUS] = 0x04,
975 [REG_DIR_DATA_WRITE] = 0x08,
976 [REG_DIR_DATA_READ] = 0x0C,
977 [REG_SWITCH_REVISION] = 0x18,
978 [REG_PHY_REVISION] = 0x1C,
979 [REG_SPHY_CNTRL] = 0x2C,
980 [REG_RGMII_0_CNTRL] = 0x34,
981 [REG_RGMII_1_CNTRL] = 0x40,
982 [REG_RGMII_2_CNTRL] = 0x4c,
983 [REG_LED_0_CNTRL] = 0x90,
984 [REG_LED_1_CNTRL] = 0x94,
985 [REG_LED_2_CNTRL] = 0x98,
986};
987
988static const struct bcm_sf2_of_data bcm_sf2_7445_data = {
989 .type = BCM7445_DEVICE_ID,
990 .core_reg_align = 0,
991 .reg_offsets = bcm_sf2_7445_reg_offsets,
992 .num_cfp_rules = 256,
993};
994
995static const u16 bcm_sf2_7278_reg_offsets[] = {
996 [REG_SWITCH_CNTRL] = 0x00,
997 [REG_SWITCH_STATUS] = 0x04,
998 [REG_DIR_DATA_WRITE] = 0x08,
999 [REG_DIR_DATA_READ] = 0x0c,
1000 [REG_SWITCH_REVISION] = 0x10,
1001 [REG_PHY_REVISION] = 0x14,
1002 [REG_SPHY_CNTRL] = 0x24,
1003 [REG_RGMII_0_CNTRL] = 0xe0,
1004 [REG_RGMII_1_CNTRL] = 0xec,
1005 [REG_RGMII_2_CNTRL] = 0xf8,
1006 [REG_LED_0_CNTRL] = 0x40,
1007 [REG_LED_1_CNTRL] = 0x4c,
1008 [REG_LED_2_CNTRL] = 0x58,
1009};
1010
1011static const struct bcm_sf2_of_data bcm_sf2_7278_data = {
1012 .type = BCM7278_DEVICE_ID,
1013 .core_reg_align = 1,
1014 .reg_offsets = bcm_sf2_7278_reg_offsets,
1015 .num_cfp_rules = 128,
1016};
1017
1018static const struct of_device_id bcm_sf2_of_match[] = {
1019 { .compatible = "brcm,bcm7445-switch-v4.0",
1020 .data = &bcm_sf2_7445_data
1021 },
1022 { .compatible = "brcm,bcm7278-switch-v4.0",
1023 .data = &bcm_sf2_7278_data
1024 },
1025 { .compatible = "brcm,bcm7278-switch-v4.8",
1026 .data = &bcm_sf2_7278_data
1027 },
1028 { },
1029};
1030MODULE_DEVICE_TABLE(of, bcm_sf2_of_match);
1031
1032static int bcm_sf2_sw_probe(struct platform_device *pdev)
1033{
1034 const char *reg_names[BCM_SF2_REGS_NUM] = BCM_SF2_REGS_NAME;
1035 struct device_node *dn = pdev->dev.of_node;
1036 const struct of_device_id *of_id = NULL;
1037 const struct bcm_sf2_of_data *data;
1038 struct b53_platform_data *pdata;
1039 struct dsa_switch_ops *ops;
1040 struct bcm_sf2_priv *priv;
1041 struct b53_device *dev;
1042 struct dsa_switch *ds;
1043 void __iomem **base;
1044 struct resource *r;
1045 unsigned int i;
1046 u32 reg, rev;
1047 int ret;
1048
1049 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
1050 if (!priv)
1051 return -ENOMEM;
1052
1053 ops = devm_kzalloc(&pdev->dev, sizeof(*ops), GFP_KERNEL);
1054 if (!ops)
1055 return -ENOMEM;
1056
1057 dev = b53_switch_alloc(&pdev->dev, &bcm_sf2_io_ops, priv);
1058 if (!dev)
1059 return -ENOMEM;
1060
1061 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
1062 if (!pdata)
1063 return -ENOMEM;
1064
1065 of_id = of_match_node(bcm_sf2_of_match, dn);
1066 if (!of_id || !of_id->data)
1067 return -EINVAL;
1068
1069 data = of_id->data;
1070
1071
1072 priv->type = data->type;
1073 priv->reg_offsets = data->reg_offsets;
1074 priv->core_reg_align = data->core_reg_align;
1075 priv->num_cfp_rules = data->num_cfp_rules;
1076
1077
1078
1079
1080
1081 pdata->chip_id = priv->type;
1082 dev->pdata = pdata;
1083
1084 priv->dev = dev;
1085 ds = dev->ds;
1086 ds->ops = &bcm_sf2_ops;
1087
1088
1089 ds->num_tx_queues = SF2_NUM_EGRESS_QUEUES;
1090
1091 dev_set_drvdata(&pdev->dev, priv);
1092
1093 spin_lock_init(&priv->indir_lock);
1094 mutex_init(&priv->cfp.lock);
1095 INIT_LIST_HEAD(&priv->cfp.rules_list);
1096
1097
1098
1099
1100 set_bit(0, priv->cfp.used);
1101 set_bit(0, priv->cfp.unique);
1102
1103 bcm_sf2_identify_ports(priv, dn->child);
1104
1105 priv->irq0 = irq_of_parse_and_map(dn, 0);
1106 priv->irq1 = irq_of_parse_and_map(dn, 1);
1107
1108 base = &priv->core;
1109 for (i = 0; i < BCM_SF2_REGS_NUM; i++) {
1110 r = platform_get_resource(pdev, IORESOURCE_MEM, i);
1111 *base = devm_ioremap_resource(&pdev->dev, r);
1112 if (IS_ERR(*base)) {
1113 pr_err("unable to find register: %s\n", reg_names[i]);
1114 return PTR_ERR(*base);
1115 }
1116 base++;
1117 }
1118
1119 ret = bcm_sf2_sw_rst(priv);
1120 if (ret) {
1121 pr_err("unable to software reset switch: %d\n", ret);
1122 return ret;
1123 }
1124
1125 bcm_sf2_gphy_enable_set(priv->dev->ds, true);
1126
1127 ret = bcm_sf2_mdio_register(ds);
1128 if (ret) {
1129 pr_err("failed to register MDIO bus\n");
1130 return ret;
1131 }
1132
1133 bcm_sf2_gphy_enable_set(priv->dev->ds, false);
1134
1135 ret = bcm_sf2_cfp_rst(priv);
1136 if (ret) {
1137 pr_err("failed to reset CFP\n");
1138 goto out_mdio;
1139 }
1140
1141
1142 bcm_sf2_intr_disable(priv);
1143
1144 ret = devm_request_irq(&pdev->dev, priv->irq0, bcm_sf2_switch_0_isr, 0,
1145 "switch_0", ds);
1146 if (ret < 0) {
1147 pr_err("failed to request switch_0 IRQ\n");
1148 goto out_mdio;
1149 }
1150
1151 ret = devm_request_irq(&pdev->dev, priv->irq1, bcm_sf2_switch_1_isr, 0,
1152 "switch_1", ds);
1153 if (ret < 0) {
1154 pr_err("failed to request switch_1 IRQ\n");
1155 goto out_mdio;
1156 }
1157
1158
1159 reg = core_readl(priv, CORE_GMNCFGCFG);
1160 reg |= RST_MIB_CNT;
1161 core_writel(priv, reg, CORE_GMNCFGCFG);
1162 reg &= ~RST_MIB_CNT;
1163 core_writel(priv, reg, CORE_GMNCFGCFG);
1164
1165
1166 priv->hw_params.num_ports = core_readl(priv, CORE_IMP0_PRT_ID) + 1;
1167 if (priv->hw_params.num_ports > DSA_MAX_PORTS)
1168 priv->hw_params.num_ports = DSA_MAX_PORTS;
1169
1170
1171 if (of_property_read_u32(dn, "brcm,num-gphy",
1172 &priv->hw_params.num_gphy))
1173 priv->hw_params.num_gphy = 1;
1174
1175 rev = reg_readl(priv, REG_SWITCH_REVISION);
1176 priv->hw_params.top_rev = (rev >> SWITCH_TOP_REV_SHIFT) &
1177 SWITCH_TOP_REV_MASK;
1178 priv->hw_params.core_rev = (rev & SF2_REV_MASK);
1179
1180 rev = reg_readl(priv, REG_PHY_REVISION);
1181 priv->hw_params.gphy_rev = rev & PHY_REVISION_MASK;
1182
1183 ret = b53_switch_register(dev);
1184 if (ret)
1185 goto out_mdio;
1186
1187 dev_info(&pdev->dev,
1188 "Starfighter 2 top: %x.%02x, core: %x.%02x, IRQs: %d, %d\n",
1189 priv->hw_params.top_rev >> 8, priv->hw_params.top_rev & 0xff,
1190 priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff,
1191 priv->irq0, priv->irq1);
1192
1193 return 0;
1194
1195out_mdio:
1196 bcm_sf2_mdio_unregister(priv);
1197 return ret;
1198}
1199
1200static int bcm_sf2_sw_remove(struct platform_device *pdev)
1201{
1202 struct bcm_sf2_priv *priv = platform_get_drvdata(pdev);
1203
1204 priv->wol_ports_mask = 0;
1205 dsa_unregister_switch(priv->dev->ds);
1206 bcm_sf2_cfp_exit(priv->dev->ds);
1207
1208 bcm_sf2_sw_suspend(priv->dev->ds);
1209 bcm_sf2_mdio_unregister(priv);
1210
1211 return 0;
1212}
1213
1214static void bcm_sf2_sw_shutdown(struct platform_device *pdev)
1215{
1216 struct bcm_sf2_priv *priv = platform_get_drvdata(pdev);
1217
1218
1219
1220
1221
1222
1223
1224 if (priv->hw_params.num_gphy == 1)
1225 bcm_sf2_gphy_enable_set(priv->dev->ds, true);
1226}
1227
1228#ifdef CONFIG_PM_SLEEP
1229static int bcm_sf2_suspend(struct device *dev)
1230{
1231 struct bcm_sf2_priv *priv = dev_get_drvdata(dev);
1232
1233 return dsa_switch_suspend(priv->dev->ds);
1234}
1235
1236static int bcm_sf2_resume(struct device *dev)
1237{
1238 struct bcm_sf2_priv *priv = dev_get_drvdata(dev);
1239
1240 return dsa_switch_resume(priv->dev->ds);
1241}
1242#endif
1243
1244static SIMPLE_DEV_PM_OPS(bcm_sf2_pm_ops,
1245 bcm_sf2_suspend, bcm_sf2_resume);
1246
1247
1248static struct platform_driver bcm_sf2_driver = {
1249 .probe = bcm_sf2_sw_probe,
1250 .remove = bcm_sf2_sw_remove,
1251 .shutdown = bcm_sf2_sw_shutdown,
1252 .driver = {
1253 .name = "brcm-sf2",
1254 .of_match_table = bcm_sf2_of_match,
1255 .pm = &bcm_sf2_pm_ops,
1256 },
1257};
1258module_platform_driver(bcm_sf2_driver);
1259
1260MODULE_AUTHOR("Broadcom Corporation");
1261MODULE_DESCRIPTION("Driver for Broadcom Starfighter 2 ethernet switch chip");
1262MODULE_LICENSE("GPL");
1263MODULE_ALIAS("platform:brcm-sf2");
1264