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
329 /**
330 * hns_dsaf_srst_chns - reset dsaf channels
331 * @dsaf_dev: dsaf device struct pointer
332 * @msk: xbar channels mask value:
333 * @dereset: false - request reset , true - drop reset
334 *
335 * bit0-5 for xge0-5
336 * bit6-11 for ppe0-5
337 * bit12-17 for roce0-5
338 * bit18-19 for com/dfx
339 */
340 static void
hns_dsaf_srst_chns(struct dsaf_device * dsaf_dev,u32 msk,bool dereset)341 hns_dsaf_srst_chns(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
342 {
343 u32 reg_addr;
344
345 if (!dereset)
346 reg_addr = DSAF_SUB_SC_DSAF_RESET_REQ_REG;
347 else
348 reg_addr = DSAF_SUB_SC_DSAF_RESET_DREQ_REG;
349
350 dsaf_write_sub(dsaf_dev, reg_addr, msk);
351 }
352
353 /**
354 * hns_dsaf_srst_chns_acpi - reset dsaf channels
355 * @dsaf_dev: dsaf device struct pointer
356 * @msk: xbar channels mask value:
357 * @dereset: false - request reset , true - drop reset
358 *
359 * bit0-5 for xge0-5
360 * bit6-11 for ppe0-5
361 * bit12-17 for roce0-5
362 * bit18-19 for com/dfx
363 */
364 static void
hns_dsaf_srst_chns_acpi(struct dsaf_device * dsaf_dev,u32 msk,bool dereset)365 hns_dsaf_srst_chns_acpi(struct dsaf_device *dsaf_dev, u32 msk, bool dereset)
366 {
367 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
368 HNS_DSAF_CHN_RESET_FUNC,
369 msk, dereset);
370 }
371
hns_dsaf_roce_srst(struct dsaf_device * dsaf_dev,bool dereset)372 static void hns_dsaf_roce_srst(struct dsaf_device *dsaf_dev, bool dereset)
373 {
374 if (!dereset) {
375 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_RESET_REQ_REG, 1);
376 } else {
377 dsaf_write_sub(dsaf_dev,
378 DSAF_SUB_SC_ROCEE_CLK_DIS_REG, 1);
379 dsaf_write_sub(dsaf_dev,
380 DSAF_SUB_SC_ROCEE_RESET_DREQ_REG, 1);
381 msleep(20);
382 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_ROCEE_CLK_EN_REG, 1);
383 }
384 }
385
hns_dsaf_roce_srst_acpi(struct dsaf_device * dsaf_dev,bool dereset)386 static void hns_dsaf_roce_srst_acpi(struct dsaf_device *dsaf_dev, bool dereset)
387 {
388 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
389 HNS_ROCE_RESET_FUNC, 0, dereset);
390 }
391
hns_dsaf_ge_srst_by_port(struct dsaf_device * dsaf_dev,u32 port,bool dereset)392 static void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
393 bool dereset)
394 {
395 u32 reg_val_1;
396 u32 reg_val_2;
397 u32 port_rst_off;
398
399 if (port >= DSAF_GE_NUM)
400 return;
401
402 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
403 reg_val_1 = 0x1 << port;
404 port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
405 /* there is difference between V1 and V2 in register.*/
406 reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ?
407 0x1041041 : 0x2082082;
408 reg_val_2 <<= port_rst_off;
409
410 if (!dereset) {
411 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
412 reg_val_1);
413
414 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ0_REG,
415 reg_val_2);
416 } else {
417 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ0_REG,
418 reg_val_2);
419
420 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
421 reg_val_1);
422 }
423 } else {
424 reg_val_1 = 0x15540;
425 reg_val_2 = AE_IS_VER1(dsaf_dev->dsaf_ver) ? 0x100 : 0x40;
426
427 reg_val_1 <<= dsaf_dev->reset_offset;
428 reg_val_2 <<= dsaf_dev->reset_offset;
429
430 if (!dereset) {
431 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_REQ1_REG,
432 reg_val_1);
433
434 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_REQ_REG,
435 reg_val_2);
436 } else {
437 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_GE_RESET_DREQ1_REG,
438 reg_val_1);
439
440 dsaf_write_sub(dsaf_dev, DSAF_SUB_SC_PPE_RESET_DREQ_REG,
441 reg_val_2);
442 }
443 }
444 }
445
hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device * dsaf_dev,u32 port,bool dereset)446 static void hns_dsaf_ge_srst_by_port_acpi(struct dsaf_device *dsaf_dev,
447 u32 port, bool dereset)
448 {
449 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
450 HNS_GE_RESET_FUNC, port, dereset);
451 }
452
hns_ppe_srst_by_port(struct dsaf_device * dsaf_dev,u32 port,bool dereset)453 static void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port,
454 bool dereset)
455 {
456 u32 reg_val = 0;
457 u32 reg_addr;
458
459 reg_val |= RESET_REQ_OR_DREQ << dsaf_dev->mac_cb[port]->port_rst_off;
460
461 if (!dereset)
462 reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
463 else
464 reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
465
466 dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
467 }
468
469 static void
hns_ppe_srst_by_port_acpi(struct dsaf_device * dsaf_dev,u32 port,bool dereset)470 hns_ppe_srst_by_port_acpi(struct dsaf_device *dsaf_dev, u32 port, bool dereset)
471 {
472 hns_dsaf_acpi_srst_by_port(dsaf_dev, HNS_OP_RESET_FUNC,
473 HNS_PPE_RESET_FUNC, port, dereset);
474 }
475
hns_ppe_com_srst(struct dsaf_device * dsaf_dev,bool dereset)476 static void hns_ppe_com_srst(struct dsaf_device *dsaf_dev, bool dereset)
477 {
478 u32 reg_val;
479 u32 reg_addr;
480
481 if (!(dev_of_node(dsaf_dev->dev)))
482 return;
483
484 if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
485 reg_val = RESET_REQ_OR_DREQ;
486 if (!dereset)
487 reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
488 else
489 reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;
490
491 } else {
492 reg_val = 0x100 << dsaf_dev->reset_offset;
493
494 if (!dereset)
495 reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
496 else
497 reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
498 }
499
500 dsaf_write_sub(dsaf_dev, reg_addr, reg_val);
501 }
502
503 /**
504 * hns_mac_get_phy_if - get phy ifterface form serdes mode
505 * @mac_cb: mac control block
506 * retuen phy interface
507 */
hns_mac_get_phy_if(struct hns_mac_cb * mac_cb)508 static phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
509 {
510 u32 mode;
511 u32 reg;
512 bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);
513 int mac_id = mac_cb->mac_id;
514 phy_interface_t phy_if;
515
516 if (is_ver1) {
517 if (HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev))
518 return PHY_INTERFACE_MODE_SGMII;
519
520 if (mac_id >= 0 && mac_id <= 3)
521 reg = HNS_MAC_HILINK4_REG;
522 else
523 reg = HNS_MAC_HILINK3_REG;
524 } else {
525 if (!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev) && mac_id <= 3)
526 reg = HNS_MAC_HILINK4V2_REG;
527 else
528 reg = HNS_MAC_HILINK3V2_REG;
529 }
530
531 mode = dsaf_read_sub(mac_cb->dsaf_dev, reg);
532 if (dsaf_get_bit(mode, mac_cb->port_mode_off))
533 phy_if = PHY_INTERFACE_MODE_XGMII;
534 else
535 phy_if = PHY_INTERFACE_MODE_SGMII;
536
537 return phy_if;
538 }
539
hns_mac_get_phy_if_acpi(struct hns_mac_cb * mac_cb)540 static phy_interface_t hns_mac_get_phy_if_acpi(struct hns_mac_cb *mac_cb)
541 {
542 phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
543 union acpi_object *obj;
544 union acpi_object obj_args, argv4;
545
546 obj_args.integer.type = ACPI_TYPE_INTEGER;
547 obj_args.integer.value = mac_cb->mac_id;
548
549 argv4.type = ACPI_TYPE_PACKAGE;
550 argv4.package.count = 1;
551 argv4.package.elements = &obj_args;
552
553 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
554 &hns_dsaf_acpi_dsm_guid, 0,
555 HNS_OP_GET_PORT_TYPE_FUNC, &argv4);
556
557 if (!obj || obj->type != ACPI_TYPE_INTEGER)
558 return phy_if;
559
560 phy_if = obj->integer.value ?
561 PHY_INTERFACE_MODE_XGMII : PHY_INTERFACE_MODE_SGMII;
562
563 dev_dbg(mac_cb->dev, "mac_id=%d, phy_if=%d\n", mac_cb->mac_id, phy_if);
564
565 ACPI_FREE(obj);
566
567 return phy_if;
568 }
569
hns_mac_get_sfp_prsnt(struct hns_mac_cb * mac_cb,int * sfp_prsnt)570 static int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
571 {
572 u32 val = 0;
573 int ret;
574
575 if (!mac_cb->cpld_ctrl)
576 return -ENODEV;
577
578 ret = dsaf_read_syscon(mac_cb->cpld_ctrl,
579 mac_cb->cpld_ctrl_reg + MAC_SFP_PORT_OFFSET,
580 &val);
581 if (ret)
582 return ret;
583
584 *sfp_prsnt = !val;
585 return 0;
586 }
587
hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb * mac_cb,int * sfp_prsnt)588 static int hns_mac_get_sfp_prsnt_acpi(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
589 {
590 union acpi_object *obj;
591 union acpi_object obj_args, argv4;
592
593 obj_args.integer.type = ACPI_TYPE_INTEGER;
594 obj_args.integer.value = mac_cb->mac_id;
595
596 argv4.type = ACPI_TYPE_PACKAGE;
597 argv4.package.count = 1;
598 argv4.package.elements = &obj_args;
599
600 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dev),
601 &hns_dsaf_acpi_dsm_guid, 0,
602 HNS_OP_GET_SFP_STAT_FUNC, &argv4);
603
604 if (!obj || obj->type != ACPI_TYPE_INTEGER)
605 return -ENODEV;
606
607 *sfp_prsnt = obj->integer.value;
608
609 ACPI_FREE(obj);
610
611 return 0;
612 }
613
614 /**
615 * hns_mac_config_sds_loopback - set loop back for serdes
616 * @mac_cb: mac control block
617 * @en: enable or disable
618 * return 0 == success
619 */
hns_mac_config_sds_loopback(struct hns_mac_cb * mac_cb,bool en)620 static int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, bool en)
621 {
622 const u8 lane_id[] = {
623 0, /* mac 0 -> lane 0 */
624 1, /* mac 1 -> lane 1 */
625 2, /* mac 2 -> lane 2 */
626 3, /* mac 3 -> lane 3 */
627 2, /* mac 4 -> lane 2 */
628 3, /* mac 5 -> lane 3 */
629 0, /* mac 6 -> lane 0 */
630 1 /* mac 7 -> lane 1 */
631 };
632 #define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
633 u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
634
635 int sfp_prsnt = 0;
636 int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);
637
638 if (!mac_cb->phy_dev) {
639 if (ret)
640 pr_info("please confirm sfp is present or not\n");
641 else
642 if (!sfp_prsnt)
643 pr_info("no sfp in this eth\n");
644 }
645
646 if (mac_cb->serdes_ctrl) {
647 u32 origin = 0;
648
649 if (!AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver)) {
650 #define HILINK_ACCESS_SEL_CFG 0x40008
651 /* hilink4 & hilink3 use the same xge training and
652 * xge u adaptor. There is a hilink access sel cfg
653 * register to select which one to be configed
654 */
655 if ((!HNS_DSAF_IS_DEBUG(mac_cb->dsaf_dev)) &&
656 (mac_cb->mac_id <= 3))
657 dsaf_write_syscon(mac_cb->serdes_ctrl,
658 HILINK_ACCESS_SEL_CFG, 0);
659 else
660 dsaf_write_syscon(mac_cb->serdes_ctrl,
661 HILINK_ACCESS_SEL_CFG, 3);
662 }
663
664 ret = dsaf_read_syscon(mac_cb->serdes_ctrl, reg_offset,
665 &origin);
666 if (ret)
667 return ret;
668
669 dsaf_set_field(origin, 1ull << 10, 10, en);
670 dsaf_write_syscon(mac_cb->serdes_ctrl, reg_offset, origin);
671 } else {
672 u8 __iomem *base_addr = mac_cb->serdes_vaddr +
673 (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
674 dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, en);
675 }
676
677 return 0;
678 }
679
680 static int
hns_mac_config_sds_loopback_acpi(struct hns_mac_cb * mac_cb,bool en)681 hns_mac_config_sds_loopback_acpi(struct hns_mac_cb *mac_cb, bool en)
682 {
683 union acpi_object *obj;
684 union acpi_object obj_args[3], argv4;
685
686 obj_args[0].integer.type = ACPI_TYPE_INTEGER;
687 obj_args[0].integer.value = mac_cb->mac_id;
688 obj_args[1].integer.type = ACPI_TYPE_INTEGER;
689 obj_args[1].integer.value = en;
690
691 argv4.type = ACPI_TYPE_PACKAGE;
692 argv4.package.count = 2;
693 argv4.package.elements = obj_args;
694
695 obj = acpi_evaluate_dsm(ACPI_HANDLE(mac_cb->dsaf_dev->dev),
696 &hns_dsaf_acpi_dsm_guid, 0,
697 HNS_OP_SERDES_LP_FUNC, &argv4);
698 if (!obj) {
699 dev_warn(mac_cb->dsaf_dev->dev, "set port%d serdes lp fail!",
700 mac_cb->mac_id);
701
702 return -ENOTSUPP;
703 }
704
705 ACPI_FREE(obj);
706
707 return 0;
708 }
709
hns_misc_op_get(struct dsaf_device * dsaf_dev)710 struct dsaf_misc_op *hns_misc_op_get(struct dsaf_device *dsaf_dev)
711 {
712 struct dsaf_misc_op *misc_op;
713
714 misc_op = devm_kzalloc(dsaf_dev->dev, sizeof(*misc_op), GFP_KERNEL);
715 if (!misc_op)
716 return NULL;
717
718 if (dev_of_node(dsaf_dev->dev)) {
719 misc_op->cpld_set_led = hns_cpld_set_led;
720 misc_op->cpld_reset_led = cpld_led_reset;
721 misc_op->cpld_set_led_id = cpld_set_led_id;
722
723 misc_op->dsaf_reset = hns_dsaf_rst;
724 misc_op->xge_srst = hns_dsaf_xge_srst_by_port;
725 misc_op->ge_srst = hns_dsaf_ge_srst_by_port;
726 misc_op->ppe_srst = hns_ppe_srst_by_port;
727 misc_op->ppe_comm_srst = hns_ppe_com_srst;
728 misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns;
729 misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst;
730
731 misc_op->get_phy_if = hns_mac_get_phy_if;
732 misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt;
733
734 misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback;
735 } else if (is_acpi_node(dsaf_dev->dev->fwnode)) {
736 misc_op->cpld_set_led = hns_cpld_set_led_acpi;
737 misc_op->cpld_reset_led = cpld_led_reset_acpi;
738 misc_op->cpld_set_led_id = cpld_set_led_id_acpi;
739
740 misc_op->dsaf_reset = hns_dsaf_rst_acpi;
741 misc_op->xge_srst = hns_dsaf_xge_srst_by_port_acpi;
742 misc_op->ge_srst = hns_dsaf_ge_srst_by_port_acpi;
743 misc_op->ppe_srst = hns_ppe_srst_by_port_acpi;
744 misc_op->ppe_comm_srst = hns_ppe_com_srst;
745 misc_op->hns_dsaf_srst_chns = hns_dsaf_srst_chns_acpi;
746 misc_op->hns_dsaf_roce_srst = hns_dsaf_roce_srst_acpi;
747
748 misc_op->get_phy_if = hns_mac_get_phy_if_acpi;
749 misc_op->get_sfp_prsnt = hns_mac_get_sfp_prsnt_acpi;
750
751 misc_op->cfg_serdes_loopback = hns_mac_config_sds_loopback_acpi;
752 } else {
753 devm_kfree(dsaf_dev->dev, (void *)misc_op);
754 misc_op = NULL;
755 }
756
757 return (void *)misc_op;
758 }
759
760 struct
hns_dsaf_find_platform_device(struct fwnode_handle * fwnode)761 platform_device *hns_dsaf_find_platform_device(struct fwnode_handle *fwnode)
762 {
763 struct device *dev;
764
765 dev = bus_find_device_by_fwnode(&platform_bus_type, fwnode);
766 return dev ? to_platform_device(dev) : NULL;
767 }
768
