1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2014-2015 Hisilicon Limited.
4 */
5
6 #include "hns_dsaf_mac.h"
7 #include "hns_dsaf_misc.h"
8 #include "hns_dsaf_ppe.h"
9 #include "hns_dsaf_reg.h"
10
11 enum _dsm_op_index {
12 HNS_OP_RESET_FUNC = 0x1,
13 HNS_OP_SERDES_LP_FUNC = 0x2,
14 HNS_OP_LED_SET_FUNC = 0x3,
15 HNS_OP_GET_PORT_TYPE_FUNC = 0x4,
16 HNS_OP_GET_SFP_STAT_FUNC = 0x5,
17 HNS_OP_LOCATE_LED_SET_FUNC = 0x6,
18 };
19
20 enum _dsm_rst_type {
21 HNS_DSAF_RESET_FUNC = 0x1,
22 HNS_PPE_RESET_FUNC = 0x2,
23 HNS_XGE_RESET_FUNC = 0x4,
24 HNS_GE_RESET_FUNC = 0x5,
25 HNS_DSAF_CHN_RESET_FUNC = 0x6,
26 HNS_ROCE_RESET_FUNC = 0x7,
27 };
28
29 static const guid_t hns_dsaf_acpi_dsm_guid =
30 GUID_INIT(0x1A85AA1A, 0xE293, 0x415E,
31 0x8E, 0x28, 0x8D, 0x69, 0x0A, 0x0F, 0x82, 0x0A);
32
dsaf_write_sub(struct dsaf_device * dsaf_dev,u32 reg,u32 val)33 static void dsaf_write_sub(struct dsaf_device *dsaf_dev, u32 reg, u32 val)
34 {
35 if (dsaf_dev->sub_ctrl)
36 dsaf_write_syscon(dsaf_dev->sub_ctrl, reg, val);
37 else
38 dsaf_write_reg(dsaf_dev->sc_base, reg, val);
39 }
40
dsaf_read_sub(struct dsaf_device * dsaf_dev,u32 reg)41 static u32 dsaf_read_sub(struct dsaf_device *dsaf_dev, u32 reg)
42 {
43 u32 ret = 0;
44 int err;
45
46 if (dsaf_dev->sub_ctrl) {
47 err = dsaf_read_syscon(dsaf_dev->sub_ctrl, reg, &ret);
48 if (err)
49 dev_err(dsaf_dev->dev, "dsaf_read_syscon error %d!\n",
50 err);
51 } else {
52 ret = dsaf_read_reg(dsaf_dev->sc_base, reg);
53 }
54
55 return ret;
56 }
57
hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb * mac_cb,u8 op_type,u32 link,u32 port,u32 act)58 static void hns_dsaf_acpi_ledctrl_by_port(struct hns_mac_cb *mac_cb, u8 op_type,
59 u32 link, u32 port, u32 act)
60 {
61 union acpi_object *obj;
62 union acpi_object obj_args[3], argv4;
63
64 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
65 obj_args[0].integer.value = link;
66 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
67 obj_args[1].integer.value = port;
68 obj_args[2].integer.type = ACPI_TYPE_INTEGER;
69 obj_args[2].integer.value = act;
70
71 argv4.type = ACPI_TYPE_PACKAGE;
72 argv4.package.count = 3;
73 argv4.package.elements = obj_args;
74
75 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
76 &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
77 if (!obj) {
78 dev_warn(mac_cb->dev, "ledctrl fail, link:%d port:%d act:%d!\n",
79 link, port, act);
80 return;
81 }
82
83 ACPI_FREE(obj);
84 }
85
hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb * mac_cb,u8 op_type,u32 locate,u32 port)86 static void hns_dsaf_acpi_locate_ledctrl_by_port(struct hns_mac_cb *mac_cb,
87 u8 op_type, u32 locate,
88 u32 port)
89 {
90 union acpi_object obj_args[2], argv4;
91 union acpi_object *obj;
92
93 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
94 obj_args[0].integer.value = locate;
95 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
96 obj_args[1].integer.value = port;
97
98 argv4.type = ACPI_TYPE_PACKAGE;
99 argv4.package.count = 2;
100 argv4.package.elements = obj_args;
101
102 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
103 &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
104 if (!obj) {
105 dev_err(mac_cb->dev, "ledctrl fail, locate:%d port:%d!\n",
106 locate, port);
107 return;
108 }
109
110 ACPI_FREE(obj);
111 }
112
hns_cpld_set_led(struct hns_mac_cb * mac_cb,int link_status,u16 speed,int data)113 static void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
114 u16 speed, int data)
115 {
116 int speed_reg = 0;
117 u8 value;
118
119 if (!mac_cb) {
120 pr_err("sfp_led_opt mac_dev is null!\n");
121 return;
122 }
123 if (!mac_cb->cpld_ctrl) {
124 dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n",
125 mac_cb->mac_id);
126 return;
127 }
128
129 if (speed == MAC_SPEED_10000)
130 speed_reg = 1;
131
132 value = mac_cb->cpld_led_value;
133
134 if (link_status) {
135 dsaf_set_bit(value, DSAF_LED_LINK_B, link_status);
136 dsaf_set_field(value, DSAF_LED_SPEED_M,
137 DSAF_LED_SPEED_S, speed_reg);
138 dsaf_set_bit(value, DSAF_LED_DATA_B, data);
139
140 if (value != mac_cb->cpld_led_value) {
141 dsaf_write_syscon(mac_cb->cpld_ctrl,
142 mac_cb->cpld_ctrl_reg, value);
143 mac_cb->cpld_led_value = value;
144 }
145 } else {
146 value = (mac_cb->cpld_led_value) & (0x1 << DSAF_LED_ANCHOR_B);
147 dsaf_write_syscon(mac_cb->cpld_ctrl,
148 mac_cb->cpld_ctrl_reg, value);
149 mac_cb->cpld_led_value = value;
150 }
151 }
152
hns_cpld_set_led_acpi(struct hns_mac_cb * mac_cb,int link_status,u16 speed,int data)153 static void hns_cpld_set_led_acpi(struct hns_mac_cb *mac_cb, int link_status,
154 u16 speed, int data)
155 {
156 if (!mac_cb) {
157 pr_err("cpld_led_set mac_cb is null!\n");
158 return;
159 }
160
161 hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
162 link_status, mac_cb->mac_id, data);
163 }
164
cpld_led_reset(struct hns_mac_cb * mac_cb)165 static void cpld_led_reset(struct hns_mac_cb *mac_cb)
166 {
167 if (!mac_cb || !mac_cb->cpld_ctrl)
168 return;
169
170 dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
171 CPLD_LED_DEFAULT_VALUE);
172 mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
173 }
174
cpld_led_reset_acpi(struct hns_mac_cb * mac_cb)175 static void cpld_led_reset_acpi(struct hns_mac_cb *mac_cb)
176 {
177 if (!mac_cb) {
178 pr_err("cpld_led_reset mac_cb is null!\n");
179 return;
180 }
181
182 if (mac_cb->media_type != HNAE_MEDIA_TYPE_FIBER)
183 return;
184
185 hns_dsaf_acpi_ledctrl_by_port(mac_cb, HNS_OP_LED_SET_FUNC,
186 0, mac_cb->mac_id, 0);
187 }
188
cpld_set_led_id(struct hns_mac_cb * mac_cb,enum hnae_led_state status)189 static int cpld_set_led_id(struct hns_mac_cb *mac_cb,
190 enum hnae_led_state status)
191 {
192 u32 val = 0;
193 int ret;
194
195 if (!mac_cb->cpld_ctrl)
196 return 0;
197
198 switch (status) {
199 case HNAE_LED_ACTIVE:
200 ret = dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
201 &val);
202 if (ret)
203 return ret;
204
205 dsaf_set_bit(val, DSAF_LED_ANCHOR_B, CPLD_LED_ON_VALUE);
206 dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
207 val);
208 mac_cb->cpld_led_value = val;
209 break;
210 case HNAE_LED_INACTIVE:
211 dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
212 CPLD_LED_DEFAULT_VALUE);
213 dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
214 mac_cb->cpld_led_value);
215 break;
216 default:
217 dev_err(mac_cb->dev, "invalid led state: %d!", status);
218 return -EINVAL;
219 }
220
221 return 0;
222 }
223
cpld_set_led_id_acpi(struct hns_mac_cb * mac_cb,enum hnae_led_state status)224 static int cpld_set_led_id_acpi(struct hns_mac_cb *mac_cb,
225 enum hnae_led_state status)
226 {
227 switch (status) {
228 case HNAE_LED_ACTIVE:
229 hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
230 HNS_OP_LOCATE_LED_SET_FUNC,
231 CPLD_LED_ON_VALUE,
232 mac_cb->mac_id);
233 break;
234 case HNAE_LED_INACTIVE:
235 hns_dsaf_acpi_locate_ledctrl_by_port(mac_cb,
236 HNS_OP_LOCATE_LED_SET_FUNC,
237 CPLD_LED_DEFAULT_VALUE,
238 mac_cb->mac_id);
239 break;
240 default:
241 dev_err(mac_cb->dev, "invalid led state: %d!", status);
242 return -EINVAL;
243 }
244
245 return 0;
246 }
247
248 #define RESET_REQ_OR_DREQ 1
249
hns_dsaf_acpi_srst_by_port(struct dsaf_device * dsaf_dev,u8 op_type,u32 port_type,u32 port,u32 val)250 static void hns_dsaf_acpi_srst_by_port(struct dsaf_device *dsaf_dev, u8 op_type,
251 u32 port_type, u32 port, u32 val)
252 {
253 union acpi_object *obj;
254 union acpi_object obj_args[3], argv4;
255
256 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
257 obj_args[0].integer.value = port_type;
258 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
259 obj_args[1].integer.value = port;
260 obj_args[2].integer.type = ACPI_TYPE_INTEGER;
261 obj_args[2].integer.value = val;
262
263 argv4.type = ACPI_TYPE_PACKAGE;
264 argv4.package.count = 3;
265 argv4.package.elements = obj_args;
266
267 obj = acpi_evaluate_dsm(ACPI_HANDLE(dsaf_dev->dev),
268 &hns_dsaf_acpi_dsm_guid, 0, op_type, &argv4);
269 if (!obj) {
270 dev_warn(dsaf_dev->dev, "reset port_type%d port%d fail!",
271 port_type, port);
272 return;
273 }
274
275 ACPI_FREE(obj);
276 }
277
hns_dsaf_rst(struct dsaf_device * dsaf_dev,bool dereset)278 static void hns_dsaf_rst(struct dsaf_device *dsaf_dev, bool dereset)
279 {
280 u32 xbar_reg_addr;
281 u32 nt_reg_addr;
282
283 if (!dereset) {
284 xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG;
285 nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG;
286 } else {
287 xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG;
288 nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG;
289 }
290
291 dsaf_write_sub(dsaf_dev, xbar_reg_addr, RESET_REQ_OR_DREQ);
292 dsaf_write_sub(dsaf_dev, nt_reg_addr, RESET_REQ_OR_DREQ);
293 }
294
hns_dsaf_rst_acpi(struct dsaf_device * dsaf_dev,bool dereset)295 static void hns_dsaf_rst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
296 {
297 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
298 HNS_DSAF_RESET_FUNC,
299 0, dereset);
300 }
301
hns_dsaf_xge_srst_by_port(struct dsaf_device * dsaf_dev,u32 port,bool dereset)302 static void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
303 bool dereset)
304 {
305 u32 reg_val = 0;
306 u32 reg_addr;
307
308 if (port >= DSAF_XGE_NUM)
309 return;
310
311 reg_val |= RESET_REQ_OR_DREQ;
312 reg_val |= 0x2082082 << dsaf_dev->mac_cb[port]->port_rst_off;
313
314 if (!dereset)
315 reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
316 else
317 reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
318
319 dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
320 }
321
hns_dsaf_xge_srst_by_port_acpi(struct dsaf_device * dsaf_dev,u32 port,bool dereset)322 static void hns_dsaf_xge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
323 u32 port, bool dereset)
324 {
325 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
326 HNS_XGE_RESET_FUNC, port, dereset);
327 }
328
hns_dsaf_ge_srst_by_port(struct dsaf_device * dsaf_dev,u32 port,bool dereset)329 static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
330 bool dereset)
331 {
332 u32 reg_val_1;
333 u32 reg_val_2;
334 u32 port_rst_off;
335
336 if (port >= DSAF_GE_NUM)
337 return;
338
339 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
340 /* DSAF_MAX_PORT_NUM is 6, but DSAF_GE_NUM is 8.
341 We need check to prevent array overflow */
342 if (port >= DSAF_MAX_PORT_NUM)
343 return;
344 reg_val_1 = 0x1 << port;
345 port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
346 /* there is difference between V1 and V2 in register.*/
347 reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ?
348 0x1041041 : 0x2082082;
349 reg_val_2 <<= port_rst_off;
350
351 if (!dereset) {
352 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
353 reg_val_1);
354
355 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG,
356 reg_val_2);
357 } else {
358 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG,
359 reg_val_2);
360
361 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
362 reg_val_1);
363 }
364 } else {
365 reg_val_1 = 0x15540;
366 reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? 0x100 : 0x40;
367
368 reg_val_1 <<= dsaf_dev->reset_offset;
369 reg_val_2 <<= dsaf_dev->reset_offset;
370
371 if (!dereset) {
372 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
373 reg_val_1);
374
375 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG,
376 reg_val_2);
377 } else {
378 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
379 reg_val_1);
380
381 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG,
382 reg_val_2);
383 }
384 }
385 }
386
hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device * dsaf_dev,u32 port,bool dereset)387 static void hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
388 u32 port, bool dereset)
389 {
390 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
391 HNS_GE_RESET_FUNC, port, dereset);
392 }
393
hns_ppe_srst_by_port(struct dsaf_device * dsaf_dev,u32 port,bool dereset)394 static void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
395 bool dereset)
396 {
397 u32 reg_val = 0;
398 u32 reg_addr;
399
400 reg_val |= RESET_REQ_OR_DREQ << dsaf_dev->mac_cb[port]->port_rst_off;
401
402 if (!dereset)
403 reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
404 else
405 reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
406
407 dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
408 }
409
410 static void
hns_ppe_srst_by_port_acpi(struct dsaf_device * dsaf_dev,u32 port,bool dereset)411 hns_ppe_srst_by_port_acpi(struct dsaf_device *dsaf_dev, u32 port, bool dereset)
412 {
413 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
414 HNS_PPE_RESET_FUNC, port, dereset);
415 }
416
hns_ppe_com_srst(struct dsaf_device * dsaf_dev,bool dereset)417 static void hns_ppe_com_srst(struct dsaf_device *dsaf_dev, bool dereset)
418 {
419 u32 reg_val;
420 u32 reg_addr;
421
422 if (!(dev_of_node(dsaf_dev->dev)))
423 return;
424
425 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
426 reg_val = RESET_REQ_OR_DREQ;
427 if (!dereset)
428 reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
429 else
430 reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;
431
432 } else {
433 reg_val = 0x100 << dsaf_dev->reset_offset;
434
435 if (!dereset)
436 reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
437 else
438 reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
439 }
440
441 dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
442 }
443
444 /**
445 * hns_mac_get_phy_if - get phy ifterface form serdes mode
446 * @mac_cb: mac control block
447 * retuen phy interface
448 */
hns_mac_get_phy_if(struct hns_mac_cb * mac_cb)449 static phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
450 {
451 u32 mode;
452 u32 reg;
453 bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
454 int mac_id = mac_cb->mac_id;
455 phy_interface_t phy_if;
456
457 if (is_ver1) {
458 if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev))
459 return PHY_INTERFACE_MODE_SGMII;
460
461 if (mac_id >= 0 && mac_id <= 3)
462 reg = HNS_MAC_HILINK4_REG;
463 else
464 reg = HNS_MAC_HILINK3_REG;
465 } else {
466 if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3)
467 reg = HNS_MAC_HILINK4V2_REG;
468 else
469 reg = HNS_MAC_HILINK3V2_REG;
470 }
471
472 mode = dsaf_read_sub(mac_cb->dsaf_dev, reg);
473 if (dsaf_get_bit(mode, mac_cb->port_mode_off))
474 phy_if = PHY_INTERFACE_MODE_XGMII;
475 else
476 phy_if = PHY_INTERFACE_MODE_SGMII;
477
478 return phy_if;
479 }
480
hns_mac_get_phy_if_acpi(struct hns_mac_cb * mac_cb)481 static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb)
482 {
483 phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
484 union acpi_object *obj;
485 union acpi_object obj_args, argv4;
486
487 obj_args.integer.type = ACPI_TYPE_INTEGER;
488 obj_args.integer.value = mac_cb->mac_id;
489
490 argv4.type = ACPI_TYPE_PACKAGE;
491 argv4.package.count = 1;
492 argv4.package.elements = &obj_args;
493
494 obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev),
495 &hns_dsaf_acpi_dsm_guid, 0,
496 HNS_OP_GET_PORT_TYPE_FUNC, &argv4,
497 ACPI_TYPE_INTEGER);
498 if (!obj)
499 return phy_if;
500
501 phy_if = obj->integer.value ?
502 PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII;
503
504 dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb->mac_id, phy_if);
505
506 ACPI_FREE(obj);
507
508 return phy_if;
509 }
510
hns_mac_get_sfp_prsnt(struct hns_mac_cb * mac_cb,int * sfp_prsnt)511 static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
512 {
513 u32 val = 0;
514 int ret;
515
516 if (!mac_cb->cpld_ctrl)
517 return -ENODEV;
518
519 ret = dsaf_read_syscon(mac_cb->cpld_ctrl,
520 mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET,
521 &val);
522 if (ret)
523 return ret;
524
525 *sfp_prsnt = !val;
526 return 0;
527 }
528
hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb * mac_cb,int * sfp_prsnt)529 static int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
530 {
531 union acpi_object *obj;
532 union acpi_object obj_args, argv4;
533
534 obj_args.integer.type = ACPI_TYPE_INTEGER;
535 obj_args.integer.value = mac_cb->mac_id;
536
537 argv4.type = ACPI_TYPE_PACKAGE;
538 argv4.package.count = 1;
539 argv4.package.elements = &obj_args;
540
541 obj = acpi_evaluate_dsm_typed(ACPI_HANDLE(mac_cb->dev),
542 &hns_dsaf_acpi_dsm_guid, 0,
543 HNS_OP_GET_SFP_STAT_FUNC, &argv4,
544 ACPI_TYPE_INTEGER);
545 if (!obj)
546 return -ENODEV;
547
548 *sfp_prsnt = obj->integer.value;
549
550 ACPI_FREE(obj);
551
552 return 0;
553 }
554
555 /**
556 * hns_mac_config_sds_loopback - set loop back for serdes
557 * @mac_cb: mac control block
558 * @en: enable or disable
559 * return 0 == success
560 */
hns_mac_config_sds_loopback(struct hns_mac_cb * mac_cb,bool en)561 static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
562 {
563 const u8 lane_id[] = {
564 0, /* mac 0 -> lane 0 */
565 1, /* mac 1 -> lane 1 */
566 2, /* mac 2 -> lane 2 */
567 3, /* mac 3 -> lane 3 */
568 2, /* mac 4 -> lane 2 */
569 3, /* mac 5 -> lane 3 */
570 0, /* mac 6 -> lane 0 */
571 1 /* mac 7 -> lane 1 */
572 };
573 #define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
574 u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
575
576 int sfp_prsnt = 0;
577 int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);
578
579 if (!mac_cb->phy_dev) {
580 if (ret)
581 pr_info("please confirm sfp is present or not\n");
582 else
583 if (!sfp_prsnt)
584 pr_info("no sfp in this eth\n");
585 }
586
587 if (mac_cb->serdes_ctrl) {
588 u32 origin = 0;
589
590 if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) {
591 #define HILINK_ACCESS_SEL_CFG 0x40008
592 /* hilink4 & hilink3 use the same xge training and
593 * xge u adaptor. There is a hilink access sel cfg
594 * register to select which one to be configed
595 */
596 if ((!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) &&
597 (mac_cb->mac_id <= 3))
598 dsaf_write_syscon(mac_cb->serdes_ctrl,
599 HILINK_ACCESS_SEL_CFG, 0);
600 else
601 dsaf_write_syscon(mac_cb->serdes_ctrl,
602 HILINK_ACCESS_SEL_CFG, 3);
603 }
604
605 ret = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset,
606 &origin);
607 if (ret)
608 return ret;
609
610 dsaf_set_field(origin, 1ull << 10, 10, en);
611 dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin);
612 } else {
613 u8 __iomem *base_addr = mac_cb->serdes_vaddr +
614 (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
615 dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, en);
616 }
617
618 return 0;
619 }
620
621 static int
hns_mac_config_sds_loopback_acpi(struct hns_mac_cb * mac_cb,bool en)622 hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en)
623 {
624 union acpi_object *obj;
625 union acpi_object obj_args[3], argv4;
626
627 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
628 obj_args[0].integer.value = mac_cb->mac_id;
629 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
630 obj_args[1].integer.value = en;
631
632 argv4.type = ACPI_TYPE_PACKAGE;
633 argv4.package.count = 2;
634 argv4.package.elements = obj_args;
635
636 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev),
637 &hns_dsaf_acpi_dsm_guid, 0,
638 HNS_OP_SERDES_LP_FUNC, &argv4);
639 if (!obj) {
640 dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!",
641 mac_cb->mac_id);
642
643 return -ENOTSUPP;
644 }
645
646 ACPI_FREE(obj);
647
648 return 0;
649 }
650
hns_misc_op_get(struct dsaf_device * dsaf_dev)651 struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
652 {
653 struct dsaf_misc_op *misc_op;
654
655 misc_op = devm_kzalloc(dsaf_dev->dev, sizeof(*misc_op), GFP_KERNEL);
656 if (!misc_op)
657 return NULL;
658
659 if (dev_of_node(dsaf_dev->dev)) {
660 misc_op->cpld_set_led = hns_cpld_set_led;
661 misc_op->cpld_reset_led = cpld_led_reset;
662 misc_op->cpld_set_led_id = cpld_set_led_id;
663
664 misc_op->dsaf_reset = hns_dsaf_rst;
665 misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
666 misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
667 misc_op->ppe_srst = hns_ppe_srst_by_port;
668 misc_op->ppe_comm_srst = hns_ppe_com_srst;
669
670 misc_op->get_phy_if = hns_mac_get_phy_if;
671 misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
672
673 misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
674 } else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
675 misc_op->cpld_set_led = hns_cpld_set_led_acpi;
676 misc_op->cpld_reset_led = cpld_led_reset_acpi;
677 misc_op->cpld_set_led_id = cpld_set_led_id_acpi;
678
679 misc_op->dsaf_reset = hns_dsaf_rst_acpi;
680 misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi;
681 misc_op->ge_srst = hns_dsaf_ge_srst_by_port_acpi;
682 misc_op->ppe_srst = hns_ppe_srst_by_port_acpi;
683 misc_op->ppe_comm_srst = hns_ppe_com_srst;
684
685 misc_op->get_phy_if = hns_mac_get_phy_if_acpi;
686 misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi;
687
688 misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi;
689 } else {
690 devm_kfree(dsaf_dev->dev, (void *)misc_op);
691 misc_op = NULL;
692 }
693
694 return (void *)misc_op;
695 }
696
697 struct
hns_dsaf_find_platform_device(struct fwnode_handle * fwnode)698 platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode)
699 {
700 struct device *dev;
701
702 dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
703 return dev ? to_platform_device(dev) : NULL;
704 }
705