1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Microchip Sparx5 Switch SerDes driver
3  *
4  * Copyright (c) 2020 Microchip Technology Inc. and its subsidiaries.
5  *
6  * The Sparx5 Chip Register Model can be browsed at this location:
7  * https://github.com/microchip-ung/sparx-5_reginfo
8  * and the datasheet is available here:
9  * https://ww1.microchip.com/downloads/en/DeviceDoc/SparX-5_Family_L2L3_Enterprise_10G_Ethernet_Switches_Datasheet_00003822B.pdf
10  */
11 #include <linux/printk.h>
12 #include <linux/module.h>
13 #include <linux/device.h>
14 #include <linux/netdevice.h>
15 #include <linux/platform_device.h>
16 #include <linux/of.h>
17 #include <linux/io.h>
18 #include <linux/clk.h>
19 #include <linux/phy.h>
20 #include <linux/phy/phy.h>
21 
22 #include "sparx5_serdes.h"
23 
24 #define SPX5_CMU_MAX          14
25 
26 #define SPX5_SERDES_10G_START 13
27 #define SPX5_SERDES_25G_START 25
28 #define SPX5_SERDES_6G10G_CNT SPX5_SERDES_25G_START
29 
30 /* Optimal power settings from GUC */
31 #define SPX5_SERDES_QUIET_MODE_VAL 0x01ef4e0c
32 
33 enum sparx5_10g28cmu_mode {
34 	SPX5_SD10G28_CMU_MAIN = 0,
35 	SPX5_SD10G28_CMU_AUX1 = 1,
36 	SPX5_SD10G28_CMU_AUX2 = 3,
37 	SPX5_SD10G28_CMU_NONE = 4,
38 	SPX5_SD10G28_CMU_MAX,
39 };
40 
41 enum sparx5_sd25g28_mode_preset_type {
42 	SPX5_SD25G28_MODE_PRESET_25000,
43 	SPX5_SD25G28_MODE_PRESET_10000,
44 	SPX5_SD25G28_MODE_PRESET_5000,
45 	SPX5_SD25G28_MODE_PRESET_SD_2G5,
46 	SPX5_SD25G28_MODE_PRESET_1000BASEX,
47 };
48 
49 enum sparx5_sd10g28_mode_preset_type {
50 	SPX5_SD10G28_MODE_PRESET_10000,
51 	SPX5_SD10G28_MODE_PRESET_SFI_5000_6G,
52 	SPX5_SD10G28_MODE_PRESET_SFI_5000_10G,
53 	SPX5_SD10G28_MODE_PRESET_QSGMII,
54 	SPX5_SD10G28_MODE_PRESET_SD_2G5,
55 	SPX5_SD10G28_MODE_PRESET_1000BASEX,
56 };
57 
58 struct sparx5_serdes_io_resource {
59 	enum sparx5_serdes_target id;
60 	phys_addr_t offset;
61 };
62 
63 struct sparx5_sd25g28_mode_preset {
64 	u8 bitwidth;
65 	u8 tx_pre_div;
66 	u8 fifo_ck_div;
67 	u8 pre_divsel;
68 	u8 vco_div_mode;
69 	u8 sel_div;
70 	u8 ck_bitwidth;
71 	u8 subrate;
72 	u8 com_txcal_en;
73 	u8 com_tx_reserve_msb;
74 	u8 com_tx_reserve_lsb;
75 	u8 cfg_itx_ipcml_base;
76 	u8 tx_reserve_lsb;
77 	u8 tx_reserve_msb;
78 	u8 bw;
79 	u8 rxterm;
80 	u8 dfe_tap;
81 	u8 dfe_enable;
82 	bool txmargin;
83 	u8 cfg_ctle_rstn;
84 	u8 r_dfe_rstn;
85 	u8 cfg_pi_bw_3_0;
86 	u8 tx_tap_dly;
87 	u8 tx_tap_adv;
88 };
89 
90 struct sparx5_sd25g28_media_preset {
91 	u8 cfg_eq_c_force_3_0;
92 	u8 cfg_vga_ctrl_byp_4_0;
93 	u8 cfg_eq_r_force_3_0;
94 	u8 cfg_en_adv;
95 	u8 cfg_en_main;
96 	u8 cfg_en_dly;
97 	u8 cfg_tap_adv_3_0;
98 	u8 cfg_tap_main;
99 	u8 cfg_tap_dly_4_0;
100 	u8 cfg_alos_thr_2_0;
101 };
102 
103 struct sparx5_sd25g28_args {
104 	u8 if_width; /* UDL if-width: 10/16/20/32/64 */
105 	bool skip_cmu_cfg:1; /* Enable/disable CMU cfg */
106 	enum sparx5_10g28cmu_mode cmu_sel; /* Device/Mode serdes uses */
107 	bool no_pwrcycle:1; /* Omit initial power-cycle */
108 	bool txinvert:1; /* Enable inversion of output data */
109 	bool rxinvert:1; /* Enable inversion of input data */
110 	u16 txswing; /* Set output level */
111 	u8 rate; /* Rate of network interface */
112 	u8 pi_bw_gen1;
113 	u8 duty_cycle; /* Set output level to  half/full */
114 	bool mute:1; /* Mute Output Buffer */
115 	bool reg_rst:1;
116 	u8 com_pll_reserve;
117 };
118 
119 struct sparx5_sd25g28_params {
120 	u8 reg_rst;
121 	u8 cfg_jc_byp;
122 	u8 cfg_common_reserve_7_0;
123 	u8 r_reg_manual;
124 	u8 r_d_width_ctrl_from_hwt;
125 	u8 r_d_width_ctrl_2_0;
126 	u8 r_txfifo_ck_div_pmad_2_0;
127 	u8 r_rxfifo_ck_div_pmad_2_0;
128 	u8 cfg_pll_lol_set;
129 	u8 cfg_vco_div_mode_1_0;
130 	u8 cfg_pre_divsel_1_0;
131 	u8 cfg_sel_div_3_0;
132 	u8 cfg_vco_start_code_3_0;
133 	u8 cfg_pma_tx_ck_bitwidth_2_0;
134 	u8 cfg_tx_prediv_1_0;
135 	u8 cfg_rxdiv_sel_2_0;
136 	u8 cfg_tx_subrate_2_0;
137 	u8 cfg_rx_subrate_2_0;
138 	u8 r_multi_lane_mode;
139 	u8 cfg_cdrck_en;
140 	u8 cfg_dfeck_en;
141 	u8 cfg_dfe_pd;
142 	u8 cfg_dfedmx_pd;
143 	u8 cfg_dfetap_en_5_1;
144 	u8 cfg_dmux_pd;
145 	u8 cfg_dmux_clk_pd;
146 	u8 cfg_erramp_pd;
147 	u8 cfg_pi_dfe_en;
148 	u8 cfg_pi_en;
149 	u8 cfg_pd_ctle;
150 	u8 cfg_summer_en;
151 	u8 cfg_pmad_ck_pd;
152 	u8 cfg_pd_clk;
153 	u8 cfg_pd_cml;
154 	u8 cfg_pd_driver;
155 	u8 cfg_rx_reg_pu;
156 	u8 cfg_pd_rms_det;
157 	u8 cfg_dcdr_pd;
158 	u8 cfg_ecdr_pd;
159 	u8 cfg_pd_sq;
160 	u8 cfg_itx_ipdriver_base_2_0;
161 	u8 cfg_tap_dly_4_0;
162 	u8 cfg_tap_main;
163 	u8 cfg_en_main;
164 	u8 cfg_tap_adv_3_0;
165 	u8 cfg_en_adv;
166 	u8 cfg_en_dly;
167 	u8 cfg_iscan_en;
168 	u8 l1_pcs_en_fast_iscan;
169 	u8 l0_cfg_bw_1_0;
170 	u8 l0_cfg_txcal_en;
171 	u8 cfg_en_dummy;
172 	u8 cfg_pll_reserve_3_0;
173 	u8 l0_cfg_tx_reserve_15_8;
174 	u8 l0_cfg_tx_reserve_7_0;
175 	u8 cfg_tx_reserve_15_8;
176 	u8 cfg_tx_reserve_7_0;
177 	u8 cfg_bw_1_0;
178 	u8 cfg_txcal_man_en;
179 	u8 cfg_phase_man_4_0;
180 	u8 cfg_quad_man_1_0;
181 	u8 cfg_txcal_shift_code_5_0;
182 	u8 cfg_txcal_valid_sel_3_0;
183 	u8 cfg_txcal_en;
184 	u8 cfg_cdr_kf_2_0;
185 	u8 cfg_cdr_m_7_0;
186 	u8 cfg_pi_bw_3_0;
187 	u8 cfg_pi_steps_1_0;
188 	u8 cfg_dis_2ndorder;
189 	u8 cfg_ctle_rstn;
190 	u8 r_dfe_rstn;
191 	u8 cfg_alos_thr_2_0;
192 	u8 cfg_itx_ipcml_base_1_0;
193 	u8 cfg_rx_reserve_7_0;
194 	u8 cfg_rx_reserve_15_8;
195 	u8 cfg_rxterm_2_0;
196 	u8 cfg_fom_selm;
197 	u8 cfg_rx_sp_ctle_1_0;
198 	u8 cfg_isel_ctle_1_0;
199 	u8 cfg_vga_ctrl_byp_4_0;
200 	u8 cfg_vga_byp;
201 	u8 cfg_agc_adpt_byp;
202 	u8 cfg_eqr_byp;
203 	u8 cfg_eqr_force_3_0;
204 	u8 cfg_eqc_force_3_0;
205 	u8 cfg_sum_setcm_en;
206 	u8 cfg_init_pos_iscan_6_0;
207 	u8 cfg_init_pos_ipi_6_0;
208 	u8 cfg_dfedig_m_2_0;
209 	u8 cfg_en_dfedig;
210 	u8 cfg_pi_DFE_en;
211 	u8 cfg_tx2rx_lp_en;
212 	u8 cfg_txlb_en;
213 	u8 cfg_rx2tx_lp_en;
214 	u8 cfg_rxlb_en;
215 	u8 r_tx_pol_inv;
216 	u8 r_rx_pol_inv;
217 };
218 
219 struct sparx5_sd10g28_media_preset {
220 	u8 cfg_en_adv;
221 	u8 cfg_en_main;
222 	u8 cfg_en_dly;
223 	u8 cfg_tap_adv_3_0;
224 	u8 cfg_tap_main;
225 	u8 cfg_tap_dly_4_0;
226 	u8 cfg_vga_ctrl_3_0;
227 	u8 cfg_vga_cp_2_0;
228 	u8 cfg_eq_res_3_0;
229 	u8 cfg_eq_r_byp;
230 	u8 cfg_eq_c_force_3_0;
231 	u8 cfg_alos_thr_3_0;
232 };
233 
234 struct sparx5_sd10g28_mode_preset {
235 	u8 bwidth; /* interface width: 10/16/20/32/64 */
236 	enum sparx5_10g28cmu_mode cmu_sel; /* Device/Mode serdes uses */
237 	u8 rate; /* Rate of network interface */
238 	u8 dfe_tap;
239 	u8 dfe_enable;
240 	u8 pi_bw_gen1;
241 	u8 duty_cycle; /* Set output level to  half/full */
242 };
243 
244 struct sparx5_sd10g28_args {
245 	bool skip_cmu_cfg:1; /* Enable/disable CMU cfg */
246 	bool no_pwrcycle:1; /* Omit initial power-cycle */
247 	bool txinvert:1; /* Enable inversion of output data */
248 	bool rxinvert:1; /* Enable inversion of input data */
249 	bool txmargin:1; /* Set output level to  half/full */
250 	u16 txswing; /* Set output level */
251 	bool mute:1; /* Mute Output Buffer */
252 	bool is_6g:1;
253 	bool reg_rst:1;
254 };
255 
256 struct sparx5_sd10g28_params {
257 	u8 cmu_sel;
258 	u8 is_6g;
259 	u8 skip_cmu_cfg;
260 	u8 cfg_lane_reserve_7_0;
261 	u8 cfg_ssc_rtl_clk_sel;
262 	u8 cfg_lane_reserve_15_8;
263 	u8 cfg_txrate_1_0;
264 	u8 cfg_rxrate_1_0;
265 	u8 r_d_width_ctrl_2_0;
266 	u8 cfg_pma_tx_ck_bitwidth_2_0;
267 	u8 cfg_rxdiv_sel_2_0;
268 	u8 r_pcs2pma_phymode_4_0;
269 	u8 cfg_lane_id_2_0;
270 	u8 cfg_cdrck_en;
271 	u8 cfg_dfeck_en;
272 	u8 cfg_dfe_pd;
273 	u8 cfg_dfetap_en_5_1;
274 	u8 cfg_erramp_pd;
275 	u8 cfg_pi_DFE_en;
276 	u8 cfg_pi_en;
277 	u8 cfg_pd_ctle;
278 	u8 cfg_summer_en;
279 	u8 cfg_pd_rx_cktree;
280 	u8 cfg_pd_clk;
281 	u8 cfg_pd_cml;
282 	u8 cfg_pd_driver;
283 	u8 cfg_rx_reg_pu;
284 	u8 cfg_d_cdr_pd;
285 	u8 cfg_pd_sq;
286 	u8 cfg_rxdet_en;
287 	u8 cfg_rxdet_str;
288 	u8 r_multi_lane_mode;
289 	u8 cfg_en_adv;
290 	u8 cfg_en_main;
291 	u8 cfg_en_dly;
292 	u8 cfg_tap_adv_3_0;
293 	u8 cfg_tap_main;
294 	u8 cfg_tap_dly_4_0;
295 	u8 cfg_vga_ctrl_3_0;
296 	u8 cfg_vga_cp_2_0;
297 	u8 cfg_eq_res_3_0;
298 	u8 cfg_eq_r_byp;
299 	u8 cfg_eq_c_force_3_0;
300 	u8 cfg_en_dfedig;
301 	u8 cfg_sum_setcm_en;
302 	u8 cfg_en_preemph;
303 	u8 cfg_itx_ippreemp_base_1_0;
304 	u8 cfg_itx_ipdriver_base_2_0;
305 	u8 cfg_ibias_tune_reserve_5_0;
306 	u8 cfg_txswing_half;
307 	u8 cfg_dis_2nd_order;
308 	u8 cfg_rx_ssc_lh;
309 	u8 cfg_pi_floop_steps_1_0;
310 	u8 cfg_pi_ext_dac_23_16;
311 	u8 cfg_pi_ext_dac_15_8;
312 	u8 cfg_iscan_ext_dac_7_0;
313 	u8 cfg_cdr_kf_gen1_2_0;
314 	u8 cfg_cdr_kf_gen2_2_0;
315 	u8 cfg_cdr_kf_gen3_2_0;
316 	u8 cfg_cdr_kf_gen4_2_0;
317 	u8 r_cdr_m_gen1_7_0;
318 	u8 cfg_pi_bw_gen1_3_0;
319 	u8 cfg_pi_bw_gen2;
320 	u8 cfg_pi_bw_gen3;
321 	u8 cfg_pi_bw_gen4;
322 	u8 cfg_pi_ext_dac_7_0;
323 	u8 cfg_pi_steps;
324 	u8 cfg_mp_max_3_0;
325 	u8 cfg_rstn_dfedig;
326 	u8 cfg_alos_thr_3_0;
327 	u8 cfg_predrv_slewrate_1_0;
328 	u8 cfg_itx_ipcml_base_1_0;
329 	u8 cfg_ip_pre_base_1_0;
330 	u8 r_cdr_m_gen2_7_0;
331 	u8 r_cdr_m_gen3_7_0;
332 	u8 r_cdr_m_gen4_7_0;
333 	u8 r_en_auto_cdr_rstn;
334 	u8 cfg_oscal_afe;
335 	u8 cfg_pd_osdac_afe;
336 	u8 cfg_resetb_oscal_afe[2];
337 	u8 cfg_center_spreading;
338 	u8 cfg_m_cnt_maxval_4_0;
339 	u8 cfg_ncnt_maxval_7_0;
340 	u8 cfg_ncnt_maxval_10_8;
341 	u8 cfg_ssc_en;
342 	u8 cfg_tx2rx_lp_en;
343 	u8 cfg_txlb_en;
344 	u8 cfg_rx2tx_lp_en;
345 	u8 cfg_rxlb_en;
346 	u8 r_tx_pol_inv;
347 	u8 r_rx_pol_inv;
348 	u8 fx_100;
349 };
350 
351 static struct sparx5_sd25g28_media_preset media_presets_25g[] = {
352 	{ /* ETH_MEDIA_DEFAULT */
353 		.cfg_en_adv               = 0,
354 		.cfg_en_main              = 1,
355 		.cfg_en_dly               = 0,
356 		.cfg_tap_adv_3_0          = 0,
357 		.cfg_tap_main             = 1,
358 		.cfg_tap_dly_4_0          = 0,
359 		.cfg_eq_c_force_3_0       = 0xf,
360 		.cfg_vga_ctrl_byp_4_0     = 4,
361 		.cfg_eq_r_force_3_0       = 12,
362 		.cfg_alos_thr_2_0         = 7,
363 	},
364 	{ /* ETH_MEDIA_SR */
365 		.cfg_en_adv               = 1,
366 		.cfg_en_main              = 1,
367 		.cfg_en_dly               = 1,
368 		.cfg_tap_adv_3_0          = 0,
369 		.cfg_tap_main             = 1,
370 		.cfg_tap_dly_4_0          = 0x10,
371 		.cfg_eq_c_force_3_0       = 0xf,
372 		.cfg_vga_ctrl_byp_4_0     = 8,
373 		.cfg_eq_r_force_3_0       = 4,
374 		.cfg_alos_thr_2_0         = 0,
375 	},
376 	{ /* ETH_MEDIA_DAC */
377 		.cfg_en_adv               = 0,
378 		.cfg_en_main              = 1,
379 		.cfg_en_dly               = 0,
380 		.cfg_tap_adv_3_0          = 0,
381 		.cfg_tap_main             = 1,
382 		.cfg_tap_dly_4_0          = 0,
383 		.cfg_eq_c_force_3_0       = 0xf,
384 		.cfg_vga_ctrl_byp_4_0     = 8,
385 		.cfg_eq_r_force_3_0       = 0xc,
386 		.cfg_alos_thr_2_0         = 0,
387 	},
388 };
389 
390 static struct sparx5_sd25g28_mode_preset mode_presets_25g[] = {
391 	{ /* SPX5_SD25G28_MODE_PRESET_25000 */
392 		.bitwidth           = 40,
393 		.tx_pre_div         = 0,
394 		.fifo_ck_div        = 0,
395 		.pre_divsel         = 1,
396 		.vco_div_mode       = 0,
397 		.sel_div            = 15,
398 		.ck_bitwidth        = 3,
399 		.subrate            = 0,
400 		.com_txcal_en       = 0,
401 		.com_tx_reserve_msb = (0x26 << 1),
402 		.com_tx_reserve_lsb = 0xf0,
403 		.cfg_itx_ipcml_base = 0,
404 		.tx_reserve_msb     = 0xcc,
405 		.tx_reserve_lsb     = 0xfe,
406 		.bw                 = 3,
407 		.rxterm             = 0,
408 		.dfe_enable         = 1,
409 		.dfe_tap            = 0x1f,
410 		.txmargin           = 1,
411 		.cfg_ctle_rstn      = 1,
412 		.r_dfe_rstn         = 1,
413 		.cfg_pi_bw_3_0      = 0,
414 		.tx_tap_dly         = 8,
415 		.tx_tap_adv         = 0xc,
416 	},
417 	{ /* SPX5_SD25G28_MODE_PRESET_10000 */
418 		.bitwidth           = 64,
419 		.tx_pre_div         = 0,
420 		.fifo_ck_div        = 2,
421 		.pre_divsel         = 0,
422 		.vco_div_mode       = 1,
423 		.sel_div            = 9,
424 		.ck_bitwidth        = 0,
425 		.subrate            = 0,
426 		.com_txcal_en       = 1,
427 		.com_tx_reserve_msb = (0x20 << 1),
428 		.com_tx_reserve_lsb = 0x40,
429 		.cfg_itx_ipcml_base = 0,
430 		.tx_reserve_msb     = 0x4c,
431 		.tx_reserve_lsb     = 0x44,
432 		.bw                 = 3,
433 		.cfg_pi_bw_3_0      = 0,
434 		.rxterm             = 3,
435 		.dfe_enable         = 1,
436 		.dfe_tap            = 0x1f,
437 		.txmargin           = 0,
438 		.cfg_ctle_rstn      = 1,
439 		.r_dfe_rstn         = 1,
440 		.tx_tap_dly         = 0,
441 		.tx_tap_adv         = 0,
442 	},
443 	{ /* SPX5_SD25G28_MODE_PRESET_5000 */
444 		.bitwidth           = 64,
445 		.tx_pre_div         = 0,
446 		.fifo_ck_div        = 2,
447 		.pre_divsel         = 0,
448 		.vco_div_mode       = 2,
449 		.sel_div            = 9,
450 		.ck_bitwidth        = 0,
451 		.subrate            = 0,
452 		.com_txcal_en       = 1,
453 		.com_tx_reserve_msb = (0x20 << 1),
454 		.com_tx_reserve_lsb = 0,
455 		.cfg_itx_ipcml_base = 0,
456 		.tx_reserve_msb     = 0xe,
457 		.tx_reserve_lsb     = 0x80,
458 		.bw                 = 0,
459 		.rxterm             = 0,
460 		.cfg_pi_bw_3_0      = 6,
461 		.dfe_enable         = 0,
462 		.dfe_tap            = 0,
463 		.tx_tap_dly         = 0,
464 		.tx_tap_adv         = 0,
465 	},
466 	{ /* SPX5_SD25G28_MODE_PRESET_SD_2G5 */
467 		.bitwidth           = 10,
468 		.tx_pre_div         = 0,
469 		.fifo_ck_div        = 0,
470 		.pre_divsel         = 0,
471 		.vco_div_mode       = 1,
472 		.sel_div            = 6,
473 		.ck_bitwidth        = 3,
474 		.subrate            = 2,
475 		.com_txcal_en       = 1,
476 		.com_tx_reserve_msb = (0x26 << 1),
477 		.com_tx_reserve_lsb = (0xf << 4),
478 		.cfg_itx_ipcml_base = 2,
479 		.tx_reserve_msb     = 0x8,
480 		.tx_reserve_lsb     = 0x8a,
481 		.bw                 = 0,
482 		.cfg_pi_bw_3_0      = 0,
483 		.rxterm             = (1 << 2),
484 		.dfe_enable         = 0,
485 		.dfe_tap            = 0,
486 		.tx_tap_dly         = 0,
487 		.tx_tap_adv         = 0,
488 	},
489 	{ /* SPX5_SD25G28_MODE_PRESET_1000BASEX */
490 		.bitwidth           = 10,
491 		.tx_pre_div         = 0,
492 		.fifo_ck_div        = 1,
493 		.pre_divsel         = 0,
494 		.vco_div_mode       = 1,
495 		.sel_div            = 8,
496 		.ck_bitwidth        = 3,
497 		.subrate            = 3,
498 		.com_txcal_en       = 1,
499 		.com_tx_reserve_msb = (0x26 << 1),
500 		.com_tx_reserve_lsb = 0xf0,
501 		.cfg_itx_ipcml_base = 0,
502 		.tx_reserve_msb     = 0x8,
503 		.tx_reserve_lsb     = 0xce,
504 		.bw                 = 0,
505 		.rxterm             = 0,
506 		.cfg_pi_bw_3_0      = 0,
507 		.dfe_enable         = 0,
508 		.dfe_tap            = 0,
509 		.tx_tap_dly         = 0,
510 		.tx_tap_adv         = 0,
511 	},
512 };
513 
514 static struct sparx5_sd10g28_media_preset media_presets_10g[] = {
515 	{ /* ETH_MEDIA_DEFAULT */
516 		.cfg_en_adv               = 0,
517 		.cfg_en_main              = 1,
518 		.cfg_en_dly               = 0,
519 		.cfg_tap_adv_3_0          = 0,
520 		.cfg_tap_main             = 1,
521 		.cfg_tap_dly_4_0          = 0,
522 		.cfg_vga_ctrl_3_0         = 5,
523 		.cfg_vga_cp_2_0           = 0,
524 		.cfg_eq_res_3_0           = 0xa,
525 		.cfg_eq_r_byp             = 1,
526 		.cfg_eq_c_force_3_0       = 0x8,
527 		.cfg_alos_thr_3_0         = 0x3,
528 	},
529 	{ /* ETH_MEDIA_SR */
530 		.cfg_en_adv               = 1,
531 		.cfg_en_main              = 1,
532 		.cfg_en_dly               = 1,
533 		.cfg_tap_adv_3_0          = 0,
534 		.cfg_tap_main             = 1,
535 		.cfg_tap_dly_4_0          = 0xc,
536 		.cfg_vga_ctrl_3_0         = 0xa,
537 		.cfg_vga_cp_2_0           = 0x4,
538 		.cfg_eq_res_3_0           = 0xa,
539 		.cfg_eq_r_byp             = 1,
540 		.cfg_eq_c_force_3_0       = 0xF,
541 		.cfg_alos_thr_3_0         = 0x3,
542 	},
543 	{ /* ETH_MEDIA_DAC */
544 		.cfg_en_adv               = 1,
545 		.cfg_en_main              = 1,
546 		.cfg_en_dly               = 1,
547 		.cfg_tap_adv_3_0          = 12,
548 		.cfg_tap_main             = 1,
549 		.cfg_tap_dly_4_0          = 8,
550 		.cfg_vga_ctrl_3_0         = 0xa,
551 		.cfg_vga_cp_2_0           = 4,
552 		.cfg_eq_res_3_0           = 0xa,
553 		.cfg_eq_r_byp             = 1,
554 		.cfg_eq_c_force_3_0       = 0xf,
555 		.cfg_alos_thr_3_0         = 0x0,
556 	}
557 };
558 
559 static struct sparx5_sd10g28_mode_preset mode_presets_10g[] = {
560 	{ /* SPX5_SD10G28_MODE_PRESET_10000 */
561 		.bwidth           = 64,
562 		.cmu_sel          = SPX5_SD10G28_CMU_MAIN,
563 		.rate             = 0x0,
564 		.dfe_enable       = 1,
565 		.dfe_tap          = 0x1f,
566 		.pi_bw_gen1       = 0x0,
567 		.duty_cycle       = 0x2,
568 	},
569 	{ /* SPX5_SD10G28_MODE_PRESET_SFI_5000_6G */
570 		.bwidth           = 16,
571 		.cmu_sel          = SPX5_SD10G28_CMU_MAIN,
572 		.rate             = 0x1,
573 		.dfe_enable       = 0,
574 		.dfe_tap          = 0,
575 		.pi_bw_gen1       = 0x5,
576 		.duty_cycle       = 0x0,
577 	},
578 	{ /* SPX5_SD10G28_MODE_PRESET_SFI_5000_10G */
579 		.bwidth           = 64,
580 		.cmu_sel          = SPX5_SD10G28_CMU_MAIN,
581 		.rate             = 0x1,
582 		.dfe_enable       = 0,
583 		.dfe_tap          = 0,
584 		.pi_bw_gen1       = 0x5,
585 		.duty_cycle       = 0x0,
586 	},
587 	{ /* SPX5_SD10G28_MODE_PRESET_QSGMII */
588 		.bwidth           = 20,
589 		.cmu_sel          = SPX5_SD10G28_CMU_AUX1,
590 		.rate             = 0x1,
591 		.dfe_enable       = 0,
592 		.dfe_tap          = 0,
593 		.pi_bw_gen1       = 0x5,
594 		.duty_cycle       = 0x0,
595 	},
596 	{ /* SPX5_SD10G28_MODE_PRESET_SD_2G5 */
597 		.bwidth           = 10,
598 		.cmu_sel          = SPX5_SD10G28_CMU_AUX2,
599 		.rate             = 0x2,
600 		.dfe_enable       = 0,
601 		.dfe_tap          = 0,
602 		.pi_bw_gen1       = 0x7,
603 		.duty_cycle       = 0x0,
604 	},
605 	{ /* SPX5_SD10G28_MODE_PRESET_1000BASEX */
606 		.bwidth           = 10,
607 		.cmu_sel          = SPX5_SD10G28_CMU_AUX1,
608 		.rate             = 0x3,
609 		.dfe_enable       = 0,
610 		.dfe_tap          = 0,
611 		.pi_bw_gen1       = 0x7,
612 		.duty_cycle       = 0x0,
613 	},
614 };
615 
616 /* map from SD25G28 interface width to configuration value */
sd25g28_get_iw_setting(struct device * dev,const u8 interface_width)617 static u8 sd25g28_get_iw_setting(struct device *dev, const u8 interface_width)
618 {
619 	switch (interface_width) {
620 	case 10: return 0;
621 	case 16: return 1;
622 	case 32: return 3;
623 	case 40: return 4;
624 	case 64: return 5;
625 	default:
626 		dev_err(dev, "%s: Illegal value %d for interface width\n",
627 		       __func__, interface_width);
628 	}
629 	return 0;
630 }
631 
632 /* map from SD10G28 interface width to configuration value */
sd10g28_get_iw_setting(struct device * dev,const u8 interface_width)633 static u8 sd10g28_get_iw_setting(struct device *dev, const u8 interface_width)
634 {
635 	switch (interface_width) {
636 	case 10: return 0;
637 	case 16: return 1;
638 	case 20: return 2;
639 	case 32: return 3;
640 	case 40: return 4;
641 	case 64: return 7;
642 	default:
643 		dev_err(dev, "%s: Illegal value %d for interface width\n", __func__,
644 		       interface_width);
645 		return 0;
646 	}
647 }
648 
sparx5_sd10g25_get_mode_preset(struct sparx5_serdes_macro * macro,struct sparx5_sd25g28_mode_preset * mode)649 static int sparx5_sd10g25_get_mode_preset(struct sparx5_serdes_macro *macro,
650 					  struct sparx5_sd25g28_mode_preset *mode)
651 {
652 	switch (macro->serdesmode) {
653 	case SPX5_SD_MODE_SFI:
654 		if (macro->speed == SPEED_25000)
655 			*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_25000];
656 		else if (macro->speed == SPEED_10000)
657 			*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_10000];
658 		else if (macro->speed == SPEED_5000)
659 			*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_5000];
660 		break;
661 	case SPX5_SD_MODE_2G5:
662 		*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_SD_2G5];
663 		break;
664 	case SPX5_SD_MODE_1000BASEX:
665 		*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_1000BASEX];
666 		break;
667 	case SPX5_SD_MODE_100FX:
668 		 /* Not supported */
669 		return -EINVAL;
670 	default:
671 		*mode = mode_presets_25g[SPX5_SD25G28_MODE_PRESET_25000];
672 		break;
673 	}
674 	return 0;
675 }
676 
sparx5_sd10g28_get_mode_preset(struct sparx5_serdes_macro * macro,struct sparx5_sd10g28_mode_preset * mode,struct sparx5_sd10g28_args * args)677 static int sparx5_sd10g28_get_mode_preset(struct sparx5_serdes_macro *macro,
678 					  struct sparx5_sd10g28_mode_preset *mode,
679 					  struct sparx5_sd10g28_args *args)
680 {
681 	switch (macro->serdesmode) {
682 	case SPX5_SD_MODE_SFI:
683 		if (macro->speed == SPEED_10000) {
684 			*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_10000];
685 		} else if (macro->speed == SPEED_5000) {
686 			if (args->is_6g)
687 				*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_SFI_5000_6G];
688 			else
689 				*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_SFI_5000_10G];
690 		} else {
691 			dev_err(macro->priv->dev, "%s: Illegal speed: %02u, sidx: %02u, mode (%u)",
692 			       __func__, macro->speed, macro->sidx,
693 			       macro->serdesmode);
694 			return -EINVAL;
695 		}
696 		break;
697 	case SPX5_SD_MODE_QSGMII:
698 		*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_QSGMII];
699 		break;
700 	case SPX5_SD_MODE_2G5:
701 		*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_SD_2G5];
702 		break;
703 	case SPX5_SD_MODE_100FX:
704 	case SPX5_SD_MODE_1000BASEX:
705 		*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_1000BASEX];
706 		break;
707 	default:
708 		*mode = mode_presets_10g[SPX5_SD10G28_MODE_PRESET_10000];
709 		break;
710 	}
711 	return 0;
712 }
713 
sparx5_sd25g28_get_params(struct sparx5_serdes_macro * macro,struct sparx5_sd25g28_media_preset * media,struct sparx5_sd25g28_mode_preset * mode,struct sparx5_sd25g28_args * args,struct sparx5_sd25g28_params * params)714 static void sparx5_sd25g28_get_params(struct sparx5_serdes_macro *macro,
715 				      struct sparx5_sd25g28_media_preset *media,
716 				      struct sparx5_sd25g28_mode_preset *mode,
717 				      struct sparx5_sd25g28_args *args,
718 				      struct sparx5_sd25g28_params *params)
719 {
720 	u8 iw = sd25g28_get_iw_setting(macro->priv->dev, mode->bitwidth);
721 	struct sparx5_sd25g28_params init = {
722 		.r_d_width_ctrl_2_0         = iw,
723 		.r_txfifo_ck_div_pmad_2_0   = mode->fifo_ck_div,
724 		.r_rxfifo_ck_div_pmad_2_0   = mode->fifo_ck_div,
725 		.cfg_vco_div_mode_1_0       = mode->vco_div_mode,
726 		.cfg_pre_divsel_1_0         = mode->pre_divsel,
727 		.cfg_sel_div_3_0            = mode->sel_div,
728 		.cfg_vco_start_code_3_0     = 0,
729 		.cfg_pma_tx_ck_bitwidth_2_0 = mode->ck_bitwidth,
730 		.cfg_tx_prediv_1_0          = mode->tx_pre_div,
731 		.cfg_rxdiv_sel_2_0          = mode->ck_bitwidth,
732 		.cfg_tx_subrate_2_0         = mode->subrate,
733 		.cfg_rx_subrate_2_0         = mode->subrate,
734 		.r_multi_lane_mode          = 0,
735 		.cfg_cdrck_en               = 1,
736 		.cfg_dfeck_en               = mode->dfe_enable,
737 		.cfg_dfe_pd                 = mode->dfe_enable == 1 ? 0 : 1,
738 		.cfg_dfedmx_pd              = 1,
739 		.cfg_dfetap_en_5_1          = mode->dfe_tap,
740 		.cfg_dmux_pd                = 0,
741 		.cfg_dmux_clk_pd            = 1,
742 		.cfg_erramp_pd              = mode->dfe_enable == 1 ? 0 : 1,
743 		.cfg_pi_DFE_en              = mode->dfe_enable,
744 		.cfg_pi_en                  = 1,
745 		.cfg_pd_ctle                = 0,
746 		.cfg_summer_en              = 1,
747 		.cfg_pmad_ck_pd             = 0,
748 		.cfg_pd_clk                 = 0,
749 		.cfg_pd_cml                 = 0,
750 		.cfg_pd_driver              = 0,
751 		.cfg_rx_reg_pu              = 1,
752 		.cfg_pd_rms_det             = 1,
753 		.cfg_dcdr_pd                = 0,
754 		.cfg_ecdr_pd                = 1,
755 		.cfg_pd_sq                  = 1,
756 		.cfg_itx_ipdriver_base_2_0  = mode->txmargin,
757 		.cfg_tap_dly_4_0            = media->cfg_tap_dly_4_0,
758 		.cfg_tap_main               = media->cfg_tap_main,
759 		.cfg_en_main                = media->cfg_en_main,
760 		.cfg_tap_adv_3_0            = media->cfg_tap_adv_3_0,
761 		.cfg_en_adv                 = media->cfg_en_adv,
762 		.cfg_en_dly                 = media->cfg_en_dly,
763 		.cfg_iscan_en               = 0,
764 		.l1_pcs_en_fast_iscan       = 0,
765 		.l0_cfg_bw_1_0              = 0,
766 		.cfg_en_dummy               = 0,
767 		.cfg_pll_reserve_3_0        = args->com_pll_reserve,
768 		.l0_cfg_txcal_en            = mode->com_txcal_en,
769 		.l0_cfg_tx_reserve_15_8     = mode->com_tx_reserve_msb,
770 		.l0_cfg_tx_reserve_7_0      = mode->com_tx_reserve_lsb,
771 		.cfg_tx_reserve_15_8        = mode->tx_reserve_msb,
772 		.cfg_tx_reserve_7_0         = mode->tx_reserve_lsb,
773 		.cfg_bw_1_0                 = mode->bw,
774 		.cfg_txcal_man_en           = 1,
775 		.cfg_phase_man_4_0          = 0,
776 		.cfg_quad_man_1_0           = 0,
777 		.cfg_txcal_shift_code_5_0   = 2,
778 		.cfg_txcal_valid_sel_3_0    = 4,
779 		.cfg_txcal_en               = 0,
780 		.cfg_cdr_kf_2_0             = 1,
781 		.cfg_cdr_m_7_0              = 6,
782 		.cfg_pi_bw_3_0              = mode->cfg_pi_bw_3_0,
783 		.cfg_pi_steps_1_0           = 0,
784 		.cfg_dis_2ndorder           = 1,
785 		.cfg_ctle_rstn              = mode->cfg_ctle_rstn,
786 		.r_dfe_rstn                 = mode->r_dfe_rstn,
787 		.cfg_alos_thr_2_0           = media->cfg_alos_thr_2_0,
788 		.cfg_itx_ipcml_base_1_0     = mode->cfg_itx_ipcml_base,
789 		.cfg_rx_reserve_7_0         = 0xbf,
790 		.cfg_rx_reserve_15_8        = 0x61,
791 		.cfg_rxterm_2_0             = mode->rxterm,
792 		.cfg_fom_selm               = 0,
793 		.cfg_rx_sp_ctle_1_0         = 0,
794 		.cfg_isel_ctle_1_0          = 0,
795 		.cfg_vga_ctrl_byp_4_0       = media->cfg_vga_ctrl_byp_4_0,
796 		.cfg_vga_byp                = 1,
797 		.cfg_agc_adpt_byp           = 1,
798 		.cfg_eqr_byp                = 1,
799 		.cfg_eqr_force_3_0          = media->cfg_eq_r_force_3_0,
800 		.cfg_eqc_force_3_0          = media->cfg_eq_c_force_3_0,
801 		.cfg_sum_setcm_en           = 1,
802 		.cfg_pi_dfe_en              = 1,
803 		.cfg_init_pos_iscan_6_0     = 6,
804 		.cfg_init_pos_ipi_6_0       = 9,
805 		.cfg_dfedig_m_2_0           = 6,
806 		.cfg_en_dfedig              = mode->dfe_enable,
807 		.r_d_width_ctrl_from_hwt    = 0,
808 		.r_reg_manual               = 1,
809 		.reg_rst                    = args->reg_rst,
810 		.cfg_jc_byp                 = 1,
811 		.cfg_common_reserve_7_0     = 1,
812 		.cfg_pll_lol_set            = 1,
813 		.cfg_tx2rx_lp_en            = 0,
814 		.cfg_txlb_en                = 0,
815 		.cfg_rx2tx_lp_en            = 0,
816 		.cfg_rxlb_en                = 0,
817 		.r_tx_pol_inv               = args->txinvert,
818 		.r_rx_pol_inv               = args->rxinvert,
819 	};
820 
821 	*params = init;
822 }
823 
sparx5_sd10g28_get_params(struct sparx5_serdes_macro * macro,struct sparx5_sd10g28_media_preset * media,struct sparx5_sd10g28_mode_preset * mode,struct sparx5_sd10g28_args * args,struct sparx5_sd10g28_params * params)824 static void sparx5_sd10g28_get_params(struct sparx5_serdes_macro *macro,
825 				      struct sparx5_sd10g28_media_preset *media,
826 				      struct sparx5_sd10g28_mode_preset *mode,
827 				      struct sparx5_sd10g28_args *args,
828 				      struct sparx5_sd10g28_params *params)
829 {
830 	u8 iw = sd10g28_get_iw_setting(macro->priv->dev, mode->bwidth);
831 	struct sparx5_sd10g28_params init = {
832 		.skip_cmu_cfg                = args->skip_cmu_cfg,
833 		.is_6g                       = args->is_6g,
834 		.cmu_sel                     = mode->cmu_sel,
835 		.cfg_lane_reserve_7_0        = (mode->cmu_sel % 2) << 6,
836 		.cfg_ssc_rtl_clk_sel         = (mode->cmu_sel / 2),
837 		.cfg_lane_reserve_15_8       = mode->duty_cycle,
838 		.cfg_txrate_1_0              = mode->rate,
839 		.cfg_rxrate_1_0              = mode->rate,
840 		.fx_100                      = macro->serdesmode == SPX5_SD_MODE_100FX,
841 		.r_d_width_ctrl_2_0          = iw,
842 		.cfg_pma_tx_ck_bitwidth_2_0  = iw,
843 		.cfg_rxdiv_sel_2_0           = iw,
844 		.r_pcs2pma_phymode_4_0       = 0,
845 		.cfg_lane_id_2_0             = 0,
846 		.cfg_cdrck_en                = 1,
847 		.cfg_dfeck_en                = mode->dfe_enable,
848 		.cfg_dfe_pd                  = (mode->dfe_enable == 1) ? 0 : 1,
849 		.cfg_dfetap_en_5_1           = mode->dfe_tap,
850 		.cfg_erramp_pd               = (mode->dfe_enable == 1) ? 0 : 1,
851 		.cfg_pi_DFE_en               = mode->dfe_enable,
852 		.cfg_pi_en                   = 1,
853 		.cfg_pd_ctle                 = 0,
854 		.cfg_summer_en               = 1,
855 		.cfg_pd_rx_cktree            = 0,
856 		.cfg_pd_clk                  = 0,
857 		.cfg_pd_cml                  = 0,
858 		.cfg_pd_driver               = 0,
859 		.cfg_rx_reg_pu               = 1,
860 		.cfg_d_cdr_pd                = 0,
861 		.cfg_pd_sq                   = mode->dfe_enable,
862 		.cfg_rxdet_en                = 0,
863 		.cfg_rxdet_str               = 0,
864 		.r_multi_lane_mode           = 0,
865 		.cfg_en_adv                  = media->cfg_en_adv,
866 		.cfg_en_main                 = 1,
867 		.cfg_en_dly                  = media->cfg_en_dly,
868 		.cfg_tap_adv_3_0             = media->cfg_tap_adv_3_0,
869 		.cfg_tap_main                = media->cfg_tap_main,
870 		.cfg_tap_dly_4_0             = media->cfg_tap_dly_4_0,
871 		.cfg_vga_ctrl_3_0            = media->cfg_vga_ctrl_3_0,
872 		.cfg_vga_cp_2_0              = media->cfg_vga_cp_2_0,
873 		.cfg_eq_res_3_0              = media->cfg_eq_res_3_0,
874 		.cfg_eq_r_byp                = media->cfg_eq_r_byp,
875 		.cfg_eq_c_force_3_0          = media->cfg_eq_c_force_3_0,
876 		.cfg_en_dfedig               = mode->dfe_enable,
877 		.cfg_sum_setcm_en            = 1,
878 		.cfg_en_preemph              = 0,
879 		.cfg_itx_ippreemp_base_1_0   = 0,
880 		.cfg_itx_ipdriver_base_2_0   = (args->txswing >> 6),
881 		.cfg_ibias_tune_reserve_5_0  = (args->txswing & 63),
882 		.cfg_txswing_half            = (args->txmargin),
883 		.cfg_dis_2nd_order           = 0x1,
884 		.cfg_rx_ssc_lh               = 0x0,
885 		.cfg_pi_floop_steps_1_0      = 0x0,
886 		.cfg_pi_ext_dac_23_16        = (1 << 5),
887 		.cfg_pi_ext_dac_15_8         = (0 << 6),
888 		.cfg_iscan_ext_dac_7_0       = (1 << 7) + 9,
889 		.cfg_cdr_kf_gen1_2_0         = 1,
890 		.cfg_cdr_kf_gen2_2_0         = 1,
891 		.cfg_cdr_kf_gen3_2_0         = 1,
892 		.cfg_cdr_kf_gen4_2_0         = 1,
893 		.r_cdr_m_gen1_7_0            = 4,
894 		.cfg_pi_bw_gen1_3_0          = mode->pi_bw_gen1,
895 		.cfg_pi_bw_gen2              = mode->pi_bw_gen1,
896 		.cfg_pi_bw_gen3              = mode->pi_bw_gen1,
897 		.cfg_pi_bw_gen4              = mode->pi_bw_gen1,
898 		.cfg_pi_ext_dac_7_0          = 3,
899 		.cfg_pi_steps                = 0,
900 		.cfg_mp_max_3_0              = 1,
901 		.cfg_rstn_dfedig             = mode->dfe_enable,
902 		.cfg_alos_thr_3_0            = media->cfg_alos_thr_3_0,
903 		.cfg_predrv_slewrate_1_0     = 3,
904 		.cfg_itx_ipcml_base_1_0      = 0,
905 		.cfg_ip_pre_base_1_0         = 0,
906 		.r_cdr_m_gen2_7_0            = 2,
907 		.r_cdr_m_gen3_7_0            = 2,
908 		.r_cdr_m_gen4_7_0            = 2,
909 		.r_en_auto_cdr_rstn          = 0,
910 		.cfg_oscal_afe               = 1,
911 		.cfg_pd_osdac_afe            = 0,
912 		.cfg_resetb_oscal_afe[0]     = 0,
913 		.cfg_resetb_oscal_afe[1]     = 1,
914 		.cfg_center_spreading        = 0,
915 		.cfg_m_cnt_maxval_4_0        = 15,
916 		.cfg_ncnt_maxval_7_0         = 32,
917 		.cfg_ncnt_maxval_10_8        = 6,
918 		.cfg_ssc_en                  = 1,
919 		.cfg_tx2rx_lp_en             = 0,
920 		.cfg_txlb_en                 = 0,
921 		.cfg_rx2tx_lp_en             = 0,
922 		.cfg_rxlb_en                 = 0,
923 		.r_tx_pol_inv                = args->txinvert,
924 		.r_rx_pol_inv                = args->rxinvert,
925 	};
926 
927 	*params = init;
928 }
929 
sparx5_cmu_apply_cfg(struct sparx5_serdes_private * priv,u32 cmu_idx,void __iomem * cmu_tgt,void __iomem * cmu_cfg_tgt,u32 spd10g)930 static int sparx5_cmu_apply_cfg(struct sparx5_serdes_private *priv,
931 				u32 cmu_idx,
932 				void __iomem *cmu_tgt,
933 				void __iomem *cmu_cfg_tgt,
934 				u32 spd10g)
935 {
936 	void __iomem **regs = priv->regs;
937 	struct device *dev = priv->dev;
938 	int value;
939 
940 	cmu_tgt = sdx5_inst_get(priv, TARGET_SD_CMU, cmu_idx);
941 	cmu_cfg_tgt = sdx5_inst_get(priv, TARGET_SD_CMU_CFG, cmu_idx);
942 
943 	if (cmu_idx == 1 || cmu_idx == 4 || cmu_idx == 7 ||
944 	    cmu_idx == 10 || cmu_idx == 13) {
945 		spd10g = 0;
946 	}
947 
948 	sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST_SET(1),
949 		      SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST,
950 		      cmu_cfg_tgt,
951 		      SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
952 
953 	sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST_SET(0),
954 		      SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST,
955 		      cmu_cfg_tgt,
956 		      SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
957 
958 	sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_CMU_RST_SET(1),
959 		      SD_CMU_CFG_SD_CMU_CFG_CMU_RST,
960 		      cmu_cfg_tgt,
961 		      SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
962 
963 	sdx5_inst_rmw(SD_CMU_CMU_45_R_DWIDTHCTRL_FROM_HWT_SET(0x1) |
964 		      SD_CMU_CMU_45_R_REFCK_SSC_EN_FROM_HWT_SET(0x1) |
965 		      SD_CMU_CMU_45_R_LINK_BUF_EN_FROM_HWT_SET(0x1) |
966 		      SD_CMU_CMU_45_R_BIAS_EN_FROM_HWT_SET(0x1) |
967 		      SD_CMU_CMU_45_R_EN_RATECHG_CTRL_SET(0x0),
968 		      SD_CMU_CMU_45_R_DWIDTHCTRL_FROM_HWT |
969 		      SD_CMU_CMU_45_R_REFCK_SSC_EN_FROM_HWT |
970 		      SD_CMU_CMU_45_R_LINK_BUF_EN_FROM_HWT |
971 		      SD_CMU_CMU_45_R_BIAS_EN_FROM_HWT |
972 		      SD_CMU_CMU_45_R_EN_RATECHG_CTRL,
973 		      cmu_tgt,
974 		      SD_CMU_CMU_45(cmu_idx));
975 
976 	sdx5_inst_rmw(SD_CMU_CMU_47_R_PCS2PMA_PHYMODE_4_0_SET(0),
977 		      SD_CMU_CMU_47_R_PCS2PMA_PHYMODE_4_0,
978 		      cmu_tgt,
979 		      SD_CMU_CMU_47(cmu_idx));
980 
981 	sdx5_inst_rmw(SD_CMU_CMU_1B_CFG_RESERVE_7_0_SET(0),
982 		      SD_CMU_CMU_1B_CFG_RESERVE_7_0,
983 		      cmu_tgt,
984 		      SD_CMU_CMU_1B(cmu_idx));
985 
986 	sdx5_inst_rmw(SD_CMU_CMU_0D_CFG_JC_BYP_SET(0x1),
987 		      SD_CMU_CMU_0D_CFG_JC_BYP,
988 		      cmu_tgt,
989 		      SD_CMU_CMU_0D(cmu_idx));
990 
991 	sdx5_inst_rmw(SD_CMU_CMU_1F_CFG_VTUNE_SEL_SET(1),
992 		      SD_CMU_CMU_1F_CFG_VTUNE_SEL,
993 		      cmu_tgt,
994 		      SD_CMU_CMU_1F(cmu_idx));
995 
996 	sdx5_inst_rmw(SD_CMU_CMU_00_CFG_PLL_TP_SEL_1_0_SET(3),
997 		      SD_CMU_CMU_00_CFG_PLL_TP_SEL_1_0,
998 		      cmu_tgt,
999 		      SD_CMU_CMU_00(cmu_idx));
1000 
1001 	sdx5_inst_rmw(SD_CMU_CMU_05_CFG_BIAS_TP_SEL_1_0_SET(3),
1002 		      SD_CMU_CMU_05_CFG_BIAS_TP_SEL_1_0,
1003 		      cmu_tgt,
1004 		      SD_CMU_CMU_05(cmu_idx));
1005 
1006 	sdx5_inst_rmw(SD_CMU_CMU_30_R_PLL_DLOL_EN_SET(1),
1007 		      SD_CMU_CMU_30_R_PLL_DLOL_EN,
1008 		      cmu_tgt,
1009 		      SD_CMU_CMU_30(cmu_idx));
1010 
1011 	sdx5_inst_rmw(SD_CMU_CMU_09_CFG_SW_10G_SET(spd10g),
1012 		      SD_CMU_CMU_09_CFG_SW_10G,
1013 		      cmu_tgt,
1014 		      SD_CMU_CMU_09(cmu_idx));
1015 
1016 	sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_CMU_RST_SET(0),
1017 		      SD_CMU_CFG_SD_CMU_CFG_CMU_RST,
1018 		      cmu_cfg_tgt,
1019 		      SD_CMU_CFG_SD_CMU_CFG(cmu_idx));
1020 
1021 	msleep(20);
1022 
1023 	sdx5_inst_rmw(SD_CMU_CMU_44_R_PLL_RSTN_SET(0),
1024 		      SD_CMU_CMU_44_R_PLL_RSTN,
1025 		      cmu_tgt,
1026 		      SD_CMU_CMU_44(cmu_idx));
1027 
1028 	sdx5_inst_rmw(SD_CMU_CMU_44_R_PLL_RSTN_SET(1),
1029 		      SD_CMU_CMU_44_R_PLL_RSTN,
1030 		      cmu_tgt,
1031 		      SD_CMU_CMU_44(cmu_idx));
1032 
1033 	msleep(20);
1034 
1035 	value = readl(sdx5_addr(regs, SD_CMU_CMU_E0(cmu_idx)));
1036 	value = SD_CMU_CMU_E0_PLL_LOL_UDL_GET(value);
1037 
1038 	if (value) {
1039 		dev_err(dev, "CMU PLL Loss of Lock: 0x%x\n", value);
1040 		return -EINVAL;
1041 	}
1042 	sdx5_inst_rmw(SD_CMU_CMU_0D_CFG_PMA_TX_CK_PD_SET(0),
1043 		      SD_CMU_CMU_0D_CFG_PMA_TX_CK_PD,
1044 		      cmu_tgt,
1045 		      SD_CMU_CMU_0D(cmu_idx));
1046 	return 0;
1047 }
1048 
sparx5_cmu_cfg(struct sparx5_serdes_private * priv,u32 cmu_idx)1049 static int sparx5_cmu_cfg(struct sparx5_serdes_private *priv, u32 cmu_idx)
1050 {
1051 	void __iomem *cmu_tgt, *cmu_cfg_tgt;
1052 	u32 spd10g = 1;
1053 
1054 	if (cmu_idx == 1 || cmu_idx == 4 || cmu_idx == 7 ||
1055 	    cmu_idx == 10 || cmu_idx == 13) {
1056 		spd10g = 0;
1057 	}
1058 
1059 	cmu_tgt = sdx5_inst_get(priv, TARGET_SD_CMU, cmu_idx);
1060 	cmu_cfg_tgt = sdx5_inst_get(priv, TARGET_SD_CMU_CFG, cmu_idx);
1061 
1062 	return sparx5_cmu_apply_cfg(priv, cmu_idx, cmu_tgt, cmu_cfg_tgt, spd10g);
1063 }
1064 
1065 /* Map of 6G/10G serdes mode and index to CMU index. */
1066 static const int
1067 sparx5_serdes_cmu_map[SPX5_SD10G28_CMU_MAX][SPX5_SERDES_6G10G_CNT] = {
1068 	[SPX5_SD10G28_CMU_MAIN] = {  2,  2,  2,  2,  2,
1069 				     2,  2,  2,  5,  5,
1070 				     5,  5,  5,  5,  5,
1071 				     5,  8, 11, 11, 11,
1072 				    11, 11, 11, 11, 11 },
1073 	[SPX5_SD10G28_CMU_AUX1] = {  0,  0,  3,  3,  3,
1074 				     3,  3,  3,  3,  3,
1075 				     6,  6,  6,  6,  6,
1076 				     6,  6,  9,  9, 12,
1077 				    12, 12, 12, 12, 12 },
1078 	[SPX5_SD10G28_CMU_AUX2] = {  1,  1,  1,  1,  4,
1079 				     4,  4,  4,  4,  4,
1080 				     4,  4,  7,  7,  7,
1081 				     7,  7, 10, 10, 10,
1082 				    10, 13, 13, 13, 13 },
1083 	[SPX5_SD10G28_CMU_NONE] = {  1,  1,  1,  1,  4,
1084 				     4,  4,  4,  4,  4,
1085 				     4,  4,  7,  7,  7,
1086 				     7,  7, 10, 10, 10,
1087 				    10, 13, 13, 13, 13 },
1088 };
1089 
1090 /* Get the index of the CMU which provides the clock for the specified serdes
1091  * mode and index.
1092  */
sparx5_serdes_cmu_get(enum sparx5_10g28cmu_mode mode,int sd_index)1093 static int sparx5_serdes_cmu_get(enum sparx5_10g28cmu_mode mode, int sd_index)
1094 {
1095 	return sparx5_serdes_cmu_map[mode][sd_index];
1096 }
1097 
sparx5_serdes_cmu_power_off(struct sparx5_serdes_private * priv)1098 static void sparx5_serdes_cmu_power_off(struct sparx5_serdes_private *priv)
1099 {
1100 	void __iomem *cmu_inst, *cmu_cfg_inst;
1101 	int i;
1102 
1103 	/* Power down each CMU */
1104 	for (i = 0; i < SPX5_CMU_MAX; i++) {
1105 		cmu_inst = sdx5_inst_get(priv, TARGET_SD_CMU, i);
1106 		cmu_cfg_inst = sdx5_inst_get(priv, TARGET_SD_CMU_CFG, i);
1107 
1108 		sdx5_inst_rmw(SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST_SET(0),
1109 			      SD_CMU_CFG_SD_CMU_CFG_EXT_CFG_RST, cmu_cfg_inst,
1110 			      SD_CMU_CFG_SD_CMU_CFG(0));
1111 
1112 		sdx5_inst_rmw(SD_CMU_CMU_05_CFG_REFCK_TERM_EN_SET(0),
1113 			      SD_CMU_CMU_05_CFG_REFCK_TERM_EN, cmu_inst,
1114 			      SD_CMU_CMU_05(0));
1115 
1116 		sdx5_inst_rmw(SD_CMU_CMU_09_CFG_EN_TX_CK_DN_SET(0),
1117 			      SD_CMU_CMU_09_CFG_EN_TX_CK_DN, cmu_inst,
1118 			      SD_CMU_CMU_09(0));
1119 
1120 		sdx5_inst_rmw(SD_CMU_CMU_06_CFG_VCO_PD_SET(1),
1121 			      SD_CMU_CMU_06_CFG_VCO_PD, cmu_inst,
1122 			      SD_CMU_CMU_06(0));
1123 
1124 		sdx5_inst_rmw(SD_CMU_CMU_09_CFG_EN_TX_CK_UP_SET(0),
1125 			      SD_CMU_CMU_09_CFG_EN_TX_CK_UP, cmu_inst,
1126 			      SD_CMU_CMU_09(0));
1127 
1128 		sdx5_inst_rmw(SD_CMU_CMU_08_CFG_CK_TREE_PD_SET(1),
1129 			      SD_CMU_CMU_08_CFG_CK_TREE_PD, cmu_inst,
1130 			      SD_CMU_CMU_08(0));
1131 
1132 		sdx5_inst_rmw(SD_CMU_CMU_0D_CFG_REFCK_PD_SET(1) |
1133 			      SD_CMU_CMU_0D_CFG_PD_DIV64_SET(1) |
1134 			      SD_CMU_CMU_0D_CFG_PD_DIV66_SET(1),
1135 			      SD_CMU_CMU_0D_CFG_REFCK_PD |
1136 			      SD_CMU_CMU_0D_CFG_PD_DIV64 |
1137 			      SD_CMU_CMU_0D_CFG_PD_DIV66, cmu_inst,
1138 			      SD_CMU_CMU_0D(0));
1139 
1140 		sdx5_inst_rmw(SD_CMU_CMU_06_CFG_CTRL_LOGIC_PD_SET(1),
1141 			      SD_CMU_CMU_06_CFG_CTRL_LOGIC_PD, cmu_inst,
1142 			      SD_CMU_CMU_06(0));
1143 	}
1144 }
1145 
sparx5_sd25g28_reset(void __iomem * regs[],struct sparx5_sd25g28_params * params,u32 sd_index)1146 static void sparx5_sd25g28_reset(void __iomem *regs[],
1147 				 struct sparx5_sd25g28_params *params,
1148 				 u32 sd_index)
1149 {
1150 	if (params->reg_rst == 1) {
1151 		sdx5_rmw_addr(SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST_SET(1),
1152 			 SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST,
1153 			 sdx5_addr(regs, SD_LANE_25G_SD_LANE_CFG(sd_index)));
1154 
1155 		usleep_range(1000, 2000);
1156 
1157 		sdx5_rmw_addr(SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST_SET(0),
1158 			 SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST,
1159 			 sdx5_addr(regs, SD_LANE_25G_SD_LANE_CFG(sd_index)));
1160 	}
1161 }
1162 
sparx5_sd25g28_apply_params(struct sparx5_serdes_macro * macro,struct sparx5_sd25g28_params * params)1163 static int sparx5_sd25g28_apply_params(struct sparx5_serdes_macro *macro,
1164 				       struct sparx5_sd25g28_params *params)
1165 {
1166 	struct sparx5_serdes_private *priv = macro->priv;
1167 	void __iomem **regs = priv->regs;
1168 	struct device *dev = priv->dev;
1169 	u32 sd_index = macro->stpidx;
1170 	u32 value;
1171 
1172 	sdx5_rmw(SD_LANE_25G_SD_LANE_CFG_MACRO_RST_SET(1),
1173 		 SD_LANE_25G_SD_LANE_CFG_MACRO_RST,
1174 		 priv,
1175 		 SD_LANE_25G_SD_LANE_CFG(sd_index));
1176 
1177 	sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0xFF),
1178 		 SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
1179 		 priv,
1180 		 SD25G_LANE_CMU_FF(sd_index));
1181 
1182 	sdx5_rmw(SD25G_LANE_CMU_1A_R_DWIDTHCTRL_FROM_HWT_SET
1183 		 (params->r_d_width_ctrl_from_hwt) |
1184 		 SD25G_LANE_CMU_1A_R_REG_MANUAL_SET(params->r_reg_manual),
1185 		 SD25G_LANE_CMU_1A_R_DWIDTHCTRL_FROM_HWT |
1186 		 SD25G_LANE_CMU_1A_R_REG_MANUAL,
1187 		 priv,
1188 		 SD25G_LANE_CMU_1A(sd_index));
1189 
1190 	sdx5_rmw(SD25G_LANE_CMU_31_CFG_COMMON_RESERVE_7_0_SET
1191 		 (params->cfg_common_reserve_7_0),
1192 		 SD25G_LANE_CMU_31_CFG_COMMON_RESERVE_7_0,
1193 		 priv,
1194 		 SD25G_LANE_CMU_31(sd_index));
1195 
1196 	sdx5_rmw(SD25G_LANE_CMU_09_CFG_EN_DUMMY_SET(params->cfg_en_dummy),
1197 		 SD25G_LANE_CMU_09_CFG_EN_DUMMY,
1198 		 priv,
1199 		 SD25G_LANE_CMU_09(sd_index));
1200 
1201 	sdx5_rmw(SD25G_LANE_CMU_13_CFG_PLL_RESERVE_3_0_SET
1202 		 (params->cfg_pll_reserve_3_0),
1203 		 SD25G_LANE_CMU_13_CFG_PLL_RESERVE_3_0,
1204 		 priv,
1205 		 SD25G_LANE_CMU_13(sd_index));
1206 
1207 	sdx5_rmw(SD25G_LANE_CMU_40_L0_CFG_TXCAL_EN_SET(params->l0_cfg_txcal_en),
1208 		 SD25G_LANE_CMU_40_L0_CFG_TXCAL_EN,
1209 		 priv,
1210 		 SD25G_LANE_CMU_40(sd_index));
1211 
1212 	sdx5_rmw(SD25G_LANE_CMU_46_L0_CFG_TX_RESERVE_15_8_SET
1213 		 (params->l0_cfg_tx_reserve_15_8),
1214 		 SD25G_LANE_CMU_46_L0_CFG_TX_RESERVE_15_8,
1215 		 priv,
1216 		 SD25G_LANE_CMU_46(sd_index));
1217 
1218 	sdx5_rmw(SD25G_LANE_CMU_45_L0_CFG_TX_RESERVE_7_0_SET
1219 		 (params->l0_cfg_tx_reserve_7_0),
1220 		 SD25G_LANE_CMU_45_L0_CFG_TX_RESERVE_7_0,
1221 		 priv,
1222 		 SD25G_LANE_CMU_45(sd_index));
1223 
1224 	sdx5_rmw(SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN_SET(0),
1225 		 SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN,
1226 		 priv,
1227 		 SD25G_LANE_CMU_0B(sd_index));
1228 
1229 	sdx5_rmw(SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN_SET(1),
1230 		 SD25G_LANE_CMU_0B_CFG_VCO_CAL_RESETN,
1231 		 priv,
1232 		 SD25G_LANE_CMU_0B(sd_index));
1233 
1234 	sdx5_rmw(SD25G_LANE_CMU_19_R_CK_RESETB_SET(0),
1235 		 SD25G_LANE_CMU_19_R_CK_RESETB,
1236 		 priv,
1237 		 SD25G_LANE_CMU_19(sd_index));
1238 
1239 	sdx5_rmw(SD25G_LANE_CMU_19_R_CK_RESETB_SET(1),
1240 		 SD25G_LANE_CMU_19_R_CK_RESETB,
1241 		 priv,
1242 		 SD25G_LANE_CMU_19(sd_index));
1243 
1244 	sdx5_rmw(SD25G_LANE_CMU_18_R_PLL_RSTN_SET(0),
1245 		 SD25G_LANE_CMU_18_R_PLL_RSTN,
1246 		 priv,
1247 		 SD25G_LANE_CMU_18(sd_index));
1248 
1249 	sdx5_rmw(SD25G_LANE_CMU_18_R_PLL_RSTN_SET(1),
1250 		 SD25G_LANE_CMU_18_R_PLL_RSTN,
1251 		 priv,
1252 		 SD25G_LANE_CMU_18(sd_index));
1253 
1254 	sdx5_rmw(SD25G_LANE_CMU_1A_R_DWIDTHCTRL_2_0_SET(params->r_d_width_ctrl_2_0),
1255 		 SD25G_LANE_CMU_1A_R_DWIDTHCTRL_2_0,
1256 		 priv,
1257 		 SD25G_LANE_CMU_1A(sd_index));
1258 
1259 	sdx5_rmw(SD25G_LANE_CMU_30_R_TXFIFO_CK_DIV_PMAD_2_0_SET
1260 		 (params->r_txfifo_ck_div_pmad_2_0) |
1261 		 SD25G_LANE_CMU_30_R_RXFIFO_CK_DIV_PMAD_2_0_SET
1262 		 (params->r_rxfifo_ck_div_pmad_2_0),
1263 		 SD25G_LANE_CMU_30_R_TXFIFO_CK_DIV_PMAD_2_0 |
1264 		 SD25G_LANE_CMU_30_R_RXFIFO_CK_DIV_PMAD_2_0,
1265 		 priv,
1266 		 SD25G_LANE_CMU_30(sd_index));
1267 
1268 	sdx5_rmw(SD25G_LANE_CMU_0C_CFG_PLL_LOL_SET_SET(params->cfg_pll_lol_set) |
1269 		 SD25G_LANE_CMU_0C_CFG_VCO_DIV_MODE_1_0_SET
1270 		 (params->cfg_vco_div_mode_1_0),
1271 		 SD25G_LANE_CMU_0C_CFG_PLL_LOL_SET |
1272 		 SD25G_LANE_CMU_0C_CFG_VCO_DIV_MODE_1_0,
1273 		 priv,
1274 		 SD25G_LANE_CMU_0C(sd_index));
1275 
1276 	sdx5_rmw(SD25G_LANE_CMU_0D_CFG_PRE_DIVSEL_1_0_SET
1277 		 (params->cfg_pre_divsel_1_0),
1278 		 SD25G_LANE_CMU_0D_CFG_PRE_DIVSEL_1_0,
1279 		 priv,
1280 		 SD25G_LANE_CMU_0D(sd_index));
1281 
1282 	sdx5_rmw(SD25G_LANE_CMU_0E_CFG_SEL_DIV_3_0_SET(params->cfg_sel_div_3_0),
1283 		 SD25G_LANE_CMU_0E_CFG_SEL_DIV_3_0,
1284 		 priv,
1285 		 SD25G_LANE_CMU_0E(sd_index));
1286 
1287 	sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0x00),
1288 		 SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
1289 		 priv,
1290 		 SD25G_LANE_CMU_FF(sd_index));
1291 
1292 	sdx5_rmw(SD25G_LANE_LANE_0C_LN_CFG_PMA_TX_CK_BITWIDTH_2_0_SET
1293 		 (params->cfg_pma_tx_ck_bitwidth_2_0),
1294 		 SD25G_LANE_LANE_0C_LN_CFG_PMA_TX_CK_BITWIDTH_2_0,
1295 		 priv,
1296 		 SD25G_LANE_LANE_0C(sd_index));
1297 
1298 	sdx5_rmw(SD25G_LANE_LANE_01_LN_CFG_TX_PREDIV_1_0_SET
1299 		 (params->cfg_tx_prediv_1_0),
1300 		 SD25G_LANE_LANE_01_LN_CFG_TX_PREDIV_1_0,
1301 		 priv,
1302 		 SD25G_LANE_LANE_01(sd_index));
1303 
1304 	sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_RXDIV_SEL_2_0_SET
1305 		 (params->cfg_rxdiv_sel_2_0),
1306 		 SD25G_LANE_LANE_18_LN_CFG_RXDIV_SEL_2_0,
1307 		 priv,
1308 		 SD25G_LANE_LANE_18(sd_index));
1309 
1310 	sdx5_rmw(SD25G_LANE_LANE_2C_LN_CFG_TX_SUBRATE_2_0_SET
1311 		 (params->cfg_tx_subrate_2_0),
1312 		 SD25G_LANE_LANE_2C_LN_CFG_TX_SUBRATE_2_0,
1313 		 priv,
1314 		 SD25G_LANE_LANE_2C(sd_index));
1315 
1316 	sdx5_rmw(SD25G_LANE_LANE_28_LN_CFG_RX_SUBRATE_2_0_SET
1317 		 (params->cfg_rx_subrate_2_0),
1318 		 SD25G_LANE_LANE_28_LN_CFG_RX_SUBRATE_2_0,
1319 		 priv,
1320 		 SD25G_LANE_LANE_28(sd_index));
1321 
1322 	sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_CDRCK_EN_SET(params->cfg_cdrck_en),
1323 		 SD25G_LANE_LANE_18_LN_CFG_CDRCK_EN,
1324 		 priv,
1325 		 SD25G_LANE_LANE_18(sd_index));
1326 
1327 	sdx5_rmw(SD25G_LANE_LANE_0F_LN_CFG_DFETAP_EN_5_1_SET
1328 		 (params->cfg_dfetap_en_5_1),
1329 		 SD25G_LANE_LANE_0F_LN_CFG_DFETAP_EN_5_1,
1330 		 priv,
1331 		 SD25G_LANE_LANE_0F(sd_index));
1332 
1333 	sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD_SET(params->cfg_erramp_pd),
1334 		 SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD,
1335 		 priv,
1336 		 SD25G_LANE_LANE_18(sd_index));
1337 
1338 	sdx5_rmw(SD25G_LANE_LANE_1D_LN_CFG_PI_DFE_EN_SET(params->cfg_pi_dfe_en),
1339 		 SD25G_LANE_LANE_1D_LN_CFG_PI_DFE_EN,
1340 		 priv,
1341 		 SD25G_LANE_LANE_1D(sd_index));
1342 
1343 	sdx5_rmw(SD25G_LANE_LANE_19_LN_CFG_ECDR_PD_SET(params->cfg_ecdr_pd),
1344 		 SD25G_LANE_LANE_19_LN_CFG_ECDR_PD,
1345 		 priv,
1346 		 SD25G_LANE_LANE_19(sd_index));
1347 
1348 	sdx5_rmw(SD25G_LANE_LANE_01_LN_CFG_ITX_IPDRIVER_BASE_2_0_SET
1349 		 (params->cfg_itx_ipdriver_base_2_0),
1350 		 SD25G_LANE_LANE_01_LN_CFG_ITX_IPDRIVER_BASE_2_0,
1351 		 priv,
1352 		 SD25G_LANE_LANE_01(sd_index));
1353 
1354 	sdx5_rmw(SD25G_LANE_LANE_03_LN_CFG_TAP_DLY_4_0_SET(params->cfg_tap_dly_4_0),
1355 		 SD25G_LANE_LANE_03_LN_CFG_TAP_DLY_4_0,
1356 		 priv,
1357 		 SD25G_LANE_LANE_03(sd_index));
1358 
1359 	sdx5_rmw(SD25G_LANE_LANE_06_LN_CFG_TAP_ADV_3_0_SET(params->cfg_tap_adv_3_0),
1360 		 SD25G_LANE_LANE_06_LN_CFG_TAP_ADV_3_0,
1361 		 priv,
1362 		 SD25G_LANE_LANE_06(sd_index));
1363 
1364 	sdx5_rmw(SD25G_LANE_LANE_07_LN_CFG_EN_ADV_SET(params->cfg_en_adv) |
1365 		 SD25G_LANE_LANE_07_LN_CFG_EN_DLY_SET(params->cfg_en_dly),
1366 		 SD25G_LANE_LANE_07_LN_CFG_EN_ADV |
1367 		 SD25G_LANE_LANE_07_LN_CFG_EN_DLY,
1368 		 priv,
1369 		 SD25G_LANE_LANE_07(sd_index));
1370 
1371 	sdx5_rmw(SD25G_LANE_LANE_43_LN_CFG_TX_RESERVE_15_8_SET
1372 		 (params->cfg_tx_reserve_15_8),
1373 		 SD25G_LANE_LANE_43_LN_CFG_TX_RESERVE_15_8,
1374 		 priv,
1375 		 SD25G_LANE_LANE_43(sd_index));
1376 
1377 	sdx5_rmw(SD25G_LANE_LANE_42_LN_CFG_TX_RESERVE_7_0_SET
1378 		 (params->cfg_tx_reserve_7_0),
1379 		 SD25G_LANE_LANE_42_LN_CFG_TX_RESERVE_7_0,
1380 		 priv,
1381 		 SD25G_LANE_LANE_42(sd_index));
1382 
1383 	sdx5_rmw(SD25G_LANE_LANE_05_LN_CFG_BW_1_0_SET(params->cfg_bw_1_0),
1384 		 SD25G_LANE_LANE_05_LN_CFG_BW_1_0,
1385 		 priv,
1386 		 SD25G_LANE_LANE_05(sd_index));
1387 
1388 	sdx5_rmw(SD25G_LANE_LANE_0B_LN_CFG_TXCAL_MAN_EN_SET
1389 		 (params->cfg_txcal_man_en),
1390 		 SD25G_LANE_LANE_0B_LN_CFG_TXCAL_MAN_EN,
1391 		 priv,
1392 		 SD25G_LANE_LANE_0B(sd_index));
1393 
1394 	sdx5_rmw(SD25G_LANE_LANE_0A_LN_CFG_TXCAL_SHIFT_CODE_5_0_SET
1395 		 (params->cfg_txcal_shift_code_5_0),
1396 		 SD25G_LANE_LANE_0A_LN_CFG_TXCAL_SHIFT_CODE_5_0,
1397 		 priv,
1398 		 SD25G_LANE_LANE_0A(sd_index));
1399 
1400 	sdx5_rmw(SD25G_LANE_LANE_09_LN_CFG_TXCAL_VALID_SEL_3_0_SET
1401 		 (params->cfg_txcal_valid_sel_3_0),
1402 		 SD25G_LANE_LANE_09_LN_CFG_TXCAL_VALID_SEL_3_0,
1403 		 priv,
1404 		 SD25G_LANE_LANE_09(sd_index));
1405 
1406 	sdx5_rmw(SD25G_LANE_LANE_1A_LN_CFG_CDR_KF_2_0_SET(params->cfg_cdr_kf_2_0),
1407 		 SD25G_LANE_LANE_1A_LN_CFG_CDR_KF_2_0,
1408 		 priv,
1409 		 SD25G_LANE_LANE_1A(sd_index));
1410 
1411 	sdx5_rmw(SD25G_LANE_LANE_1B_LN_CFG_CDR_M_7_0_SET(params->cfg_cdr_m_7_0),
1412 		 SD25G_LANE_LANE_1B_LN_CFG_CDR_M_7_0,
1413 		 priv,
1414 		 SD25G_LANE_LANE_1B(sd_index));
1415 
1416 	sdx5_rmw(SD25G_LANE_LANE_2B_LN_CFG_PI_BW_3_0_SET(params->cfg_pi_bw_3_0),
1417 		 SD25G_LANE_LANE_2B_LN_CFG_PI_BW_3_0,
1418 		 priv,
1419 		 SD25G_LANE_LANE_2B(sd_index));
1420 
1421 	sdx5_rmw(SD25G_LANE_LANE_2C_LN_CFG_DIS_2NDORDER_SET
1422 		 (params->cfg_dis_2ndorder),
1423 		 SD25G_LANE_LANE_2C_LN_CFG_DIS_2NDORDER,
1424 		 priv,
1425 		 SD25G_LANE_LANE_2C(sd_index));
1426 
1427 	sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_CTLE_RSTN_SET(params->cfg_ctle_rstn),
1428 		 SD25G_LANE_LANE_2E_LN_CFG_CTLE_RSTN,
1429 		 priv,
1430 		 SD25G_LANE_LANE_2E(sd_index));
1431 
1432 	sdx5_rmw(SD25G_LANE_LANE_00_LN_CFG_ITX_IPCML_BASE_1_0_SET
1433 		 (params->cfg_itx_ipcml_base_1_0),
1434 		 SD25G_LANE_LANE_00_LN_CFG_ITX_IPCML_BASE_1_0,
1435 		 priv,
1436 		 SD25G_LANE_LANE_00(sd_index));
1437 
1438 	sdx5_rmw(SD25G_LANE_LANE_44_LN_CFG_RX_RESERVE_7_0_SET
1439 		 (params->cfg_rx_reserve_7_0),
1440 		 SD25G_LANE_LANE_44_LN_CFG_RX_RESERVE_7_0,
1441 		 priv,
1442 		 SD25G_LANE_LANE_44(sd_index));
1443 
1444 	sdx5_rmw(SD25G_LANE_LANE_45_LN_CFG_RX_RESERVE_15_8_SET
1445 		 (params->cfg_rx_reserve_15_8),
1446 		 SD25G_LANE_LANE_45_LN_CFG_RX_RESERVE_15_8,
1447 		 priv,
1448 		 SD25G_LANE_LANE_45(sd_index));
1449 
1450 	sdx5_rmw(SD25G_LANE_LANE_0D_LN_CFG_DFECK_EN_SET(params->cfg_dfeck_en) |
1451 		 SD25G_LANE_LANE_0D_LN_CFG_RXTERM_2_0_SET(params->cfg_rxterm_2_0),
1452 		 SD25G_LANE_LANE_0D_LN_CFG_DFECK_EN |
1453 		 SD25G_LANE_LANE_0D_LN_CFG_RXTERM_2_0,
1454 		 priv,
1455 		 SD25G_LANE_LANE_0D(sd_index));
1456 
1457 	sdx5_rmw(SD25G_LANE_LANE_21_LN_CFG_VGA_CTRL_BYP_4_0_SET
1458 		 (params->cfg_vga_ctrl_byp_4_0),
1459 		 SD25G_LANE_LANE_21_LN_CFG_VGA_CTRL_BYP_4_0,
1460 		 priv,
1461 		 SD25G_LANE_LANE_21(sd_index));
1462 
1463 	sdx5_rmw(SD25G_LANE_LANE_22_LN_CFG_EQR_FORCE_3_0_SET
1464 		 (params->cfg_eqr_force_3_0),
1465 		 SD25G_LANE_LANE_22_LN_CFG_EQR_FORCE_3_0,
1466 		 priv,
1467 		 SD25G_LANE_LANE_22(sd_index));
1468 
1469 	sdx5_rmw(SD25G_LANE_LANE_1C_LN_CFG_EQC_FORCE_3_0_SET
1470 		 (params->cfg_eqc_force_3_0) |
1471 		 SD25G_LANE_LANE_1C_LN_CFG_DFE_PD_SET(params->cfg_dfe_pd),
1472 		 SD25G_LANE_LANE_1C_LN_CFG_EQC_FORCE_3_0 |
1473 		 SD25G_LANE_LANE_1C_LN_CFG_DFE_PD,
1474 		 priv,
1475 		 SD25G_LANE_LANE_1C(sd_index));
1476 
1477 	sdx5_rmw(SD25G_LANE_LANE_1E_LN_CFG_SUM_SETCM_EN_SET
1478 		 (params->cfg_sum_setcm_en),
1479 		 SD25G_LANE_LANE_1E_LN_CFG_SUM_SETCM_EN,
1480 		 priv,
1481 		 SD25G_LANE_LANE_1E(sd_index));
1482 
1483 	sdx5_rmw(SD25G_LANE_LANE_25_LN_CFG_INIT_POS_ISCAN_6_0_SET
1484 		 (params->cfg_init_pos_iscan_6_0),
1485 		 SD25G_LANE_LANE_25_LN_CFG_INIT_POS_ISCAN_6_0,
1486 		 priv,
1487 		 SD25G_LANE_LANE_25(sd_index));
1488 
1489 	sdx5_rmw(SD25G_LANE_LANE_26_LN_CFG_INIT_POS_IPI_6_0_SET
1490 		 (params->cfg_init_pos_ipi_6_0),
1491 		 SD25G_LANE_LANE_26_LN_CFG_INIT_POS_IPI_6_0,
1492 		 priv,
1493 		 SD25G_LANE_LANE_26(sd_index));
1494 
1495 	sdx5_rmw(SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD_SET(params->cfg_erramp_pd),
1496 		 SD25G_LANE_LANE_18_LN_CFG_ERRAMP_PD,
1497 		 priv,
1498 		 SD25G_LANE_LANE_18(sd_index));
1499 
1500 	sdx5_rmw(SD25G_LANE_LANE_0E_LN_CFG_DFEDIG_M_2_0_SET
1501 		 (params->cfg_dfedig_m_2_0),
1502 		 SD25G_LANE_LANE_0E_LN_CFG_DFEDIG_M_2_0,
1503 		 priv,
1504 		 SD25G_LANE_LANE_0E(sd_index));
1505 
1506 	sdx5_rmw(SD25G_LANE_LANE_0E_LN_CFG_EN_DFEDIG_SET(params->cfg_en_dfedig),
1507 		 SD25G_LANE_LANE_0E_LN_CFG_EN_DFEDIG,
1508 		 priv,
1509 		 SD25G_LANE_LANE_0E(sd_index));
1510 
1511 	sdx5_rmw(SD25G_LANE_LANE_40_LN_R_TX_POL_INV_SET(params->r_tx_pol_inv) |
1512 		 SD25G_LANE_LANE_40_LN_R_RX_POL_INV_SET(params->r_rx_pol_inv),
1513 		 SD25G_LANE_LANE_40_LN_R_TX_POL_INV |
1514 		 SD25G_LANE_LANE_40_LN_R_RX_POL_INV,
1515 		 priv,
1516 		 SD25G_LANE_LANE_40(sd_index));
1517 
1518 	sdx5_rmw(SD25G_LANE_LANE_04_LN_CFG_RX2TX_LP_EN_SET(params->cfg_rx2tx_lp_en) |
1519 		 SD25G_LANE_LANE_04_LN_CFG_TX2RX_LP_EN_SET(params->cfg_tx2rx_lp_en),
1520 		 SD25G_LANE_LANE_04_LN_CFG_RX2TX_LP_EN |
1521 		 SD25G_LANE_LANE_04_LN_CFG_TX2RX_LP_EN,
1522 		 priv,
1523 		 SD25G_LANE_LANE_04(sd_index));
1524 
1525 	sdx5_rmw(SD25G_LANE_LANE_1E_LN_CFG_RXLB_EN_SET(params->cfg_rxlb_en),
1526 		 SD25G_LANE_LANE_1E_LN_CFG_RXLB_EN,
1527 		 priv,
1528 		 SD25G_LANE_LANE_1E(sd_index));
1529 
1530 	sdx5_rmw(SD25G_LANE_LANE_19_LN_CFG_TXLB_EN_SET(params->cfg_txlb_en),
1531 		 SD25G_LANE_LANE_19_LN_CFG_TXLB_EN,
1532 		 priv,
1533 		 SD25G_LANE_LANE_19(sd_index));
1534 
1535 	sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG_SET(0),
1536 		 SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG,
1537 		 priv,
1538 		 SD25G_LANE_LANE_2E(sd_index));
1539 
1540 	sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG_SET(1),
1541 		 SD25G_LANE_LANE_2E_LN_CFG_RSTN_DFEDIG,
1542 		 priv,
1543 		 SD25G_LANE_LANE_2E(sd_index));
1544 
1545 	sdx5_rmw(SD_LANE_25G_SD_LANE_CFG_MACRO_RST_SET(0),
1546 		 SD_LANE_25G_SD_LANE_CFG_MACRO_RST,
1547 		 priv,
1548 		 SD_LANE_25G_SD_LANE_CFG(sd_index));
1549 
1550 	sdx5_rmw(SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN_SET(0),
1551 		 SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN,
1552 		 priv,
1553 		 SD25G_LANE_LANE_1C(sd_index));
1554 
1555 	usleep_range(1000, 2000);
1556 
1557 	sdx5_rmw(SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN_SET(1),
1558 		 SD25G_LANE_LANE_1C_LN_CFG_CDR_RSTN,
1559 		 priv,
1560 		 SD25G_LANE_LANE_1C(sd_index));
1561 
1562 	usleep_range(10000, 20000);
1563 
1564 	sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0xff),
1565 		 SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
1566 		 priv,
1567 		 SD25G_LANE_CMU_FF(sd_index));
1568 
1569 	value = readl(sdx5_addr(regs, SD25G_LANE_CMU_C0(sd_index)));
1570 	value = SD25G_LANE_CMU_C0_PLL_LOL_UDL_GET(value);
1571 
1572 	if (value) {
1573 		dev_err(dev, "25G PLL Loss of Lock: 0x%x\n", value);
1574 		return -EINVAL;
1575 	}
1576 
1577 	value = readl(sdx5_addr(regs, SD_LANE_25G_SD_LANE_STAT(sd_index)));
1578 	value = SD_LANE_25G_SD_LANE_STAT_PMA_RST_DONE_GET(value);
1579 
1580 	if (value != 0x1) {
1581 		dev_err(dev, "25G PMA Reset failed: 0x%x\n", value);
1582 		return -EINVAL;
1583 	}
1584 	sdx5_rmw(SD25G_LANE_CMU_2A_R_DBG_LOL_STATUS_SET(0x1),
1585 		 SD25G_LANE_CMU_2A_R_DBG_LOL_STATUS,
1586 		 priv,
1587 		 SD25G_LANE_CMU_2A(sd_index));
1588 
1589 	sdx5_rmw(SD_LANE_25G_SD_SER_RST_SER_RST_SET(0x0),
1590 		 SD_LANE_25G_SD_SER_RST_SER_RST,
1591 		 priv,
1592 		 SD_LANE_25G_SD_SER_RST(sd_index));
1593 
1594 	sdx5_rmw(SD_LANE_25G_SD_DES_RST_DES_RST_SET(0x0),
1595 		 SD_LANE_25G_SD_DES_RST_DES_RST,
1596 		 priv,
1597 		 SD_LANE_25G_SD_DES_RST(sd_index));
1598 
1599 	sdx5_rmw(SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX_SET(0),
1600 		 SD25G_LANE_CMU_FF_REGISTER_TABLE_INDEX,
1601 		 priv,
1602 		 SD25G_LANE_CMU_FF(sd_index));
1603 
1604 	sdx5_rmw(SD25G_LANE_LANE_2D_LN_CFG_ALOS_THR_2_0_SET
1605 		 (params->cfg_alos_thr_2_0),
1606 		 SD25G_LANE_LANE_2D_LN_CFG_ALOS_THR_2_0,
1607 		 priv,
1608 		 SD25G_LANE_LANE_2D(sd_index));
1609 
1610 	sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_DIS_SQ_SET(0),
1611 		 SD25G_LANE_LANE_2E_LN_CFG_DIS_SQ,
1612 		 priv,
1613 		 SD25G_LANE_LANE_2E(sd_index));
1614 
1615 	sdx5_rmw(SD25G_LANE_LANE_2E_LN_CFG_PD_SQ_SET(0),
1616 		 SD25G_LANE_LANE_2E_LN_CFG_PD_SQ,
1617 		 priv,
1618 		 SD25G_LANE_LANE_2E(sd_index));
1619 
1620 	return 0;
1621 }
1622 
sparx5_sd10g28_reset(void __iomem * regs[],u32 lane_index)1623 static void sparx5_sd10g28_reset(void __iomem *regs[], u32 lane_index)
1624 {
1625 	/* Note: SerDes SD10G_LANE_1 is configured in 10G_LAN mode */
1626 	sdx5_rmw_addr(SD_LANE_SD_LANE_CFG_EXT_CFG_RST_SET(1),
1627 		      SD_LANE_SD_LANE_CFG_EXT_CFG_RST,
1628 		      sdx5_addr(regs, SD_LANE_SD_LANE_CFG(lane_index)));
1629 
1630 	usleep_range(1000, 2000);
1631 
1632 	sdx5_rmw_addr(SD_LANE_SD_LANE_CFG_EXT_CFG_RST_SET(0),
1633 		      SD_LANE_SD_LANE_CFG_EXT_CFG_RST,
1634 		      sdx5_addr(regs, SD_LANE_SD_LANE_CFG(lane_index)));
1635 }
1636 
sparx5_sd10g28_apply_params(struct sparx5_serdes_macro * macro,struct sparx5_sd10g28_params * params)1637 static int sparx5_sd10g28_apply_params(struct sparx5_serdes_macro *macro,
1638 				       struct sparx5_sd10g28_params *params)
1639 {
1640 	struct sparx5_serdes_private *priv = macro->priv;
1641 	void __iomem **regs = priv->regs;
1642 	struct device *dev = priv->dev;
1643 	u32 lane_index = macro->sidx;
1644 	u32 sd_index = macro->stpidx;
1645 	void __iomem *sd_inst;
1646 	u32 value, cmu_idx;
1647 	int err;
1648 
1649 	/* Do not configure serdes if CMU is not to be configured too */
1650 	if (params->skip_cmu_cfg)
1651 		return 0;
1652 
1653 	cmu_idx = sparx5_serdes_cmu_get(params->cmu_sel, lane_index);
1654 	err = sparx5_cmu_cfg(priv, cmu_idx);
1655 	if (err)
1656 		return err;
1657 
1658 	if (params->is_6g)
1659 		sd_inst = sdx5_inst_get(priv, TARGET_SD6G_LANE, sd_index);
1660 	else
1661 		sd_inst = sdx5_inst_get(priv, TARGET_SD10G_LANE, sd_index);
1662 
1663 	sdx5_rmw(SD_LANE_SD_LANE_CFG_MACRO_RST_SET(1),
1664 		 SD_LANE_SD_LANE_CFG_MACRO_RST,
1665 		 priv,
1666 		 SD_LANE_SD_LANE_CFG(lane_index));
1667 
1668 	sdx5_inst_rmw(SD10G_LANE_LANE_93_R_DWIDTHCTRL_FROM_HWT_SET(0x0) |
1669 		      SD10G_LANE_LANE_93_R_REG_MANUAL_SET(0x1) |
1670 		      SD10G_LANE_LANE_93_R_AUXCKSEL_FROM_HWT_SET(0x1) |
1671 		      SD10G_LANE_LANE_93_R_LANE_ID_FROM_HWT_SET(0x1) |
1672 		      SD10G_LANE_LANE_93_R_EN_RATECHG_CTRL_SET(0x0),
1673 		      SD10G_LANE_LANE_93_R_DWIDTHCTRL_FROM_HWT |
1674 		      SD10G_LANE_LANE_93_R_REG_MANUAL |
1675 		      SD10G_LANE_LANE_93_R_AUXCKSEL_FROM_HWT |
1676 		      SD10G_LANE_LANE_93_R_LANE_ID_FROM_HWT |
1677 		      SD10G_LANE_LANE_93_R_EN_RATECHG_CTRL,
1678 		      sd_inst,
1679 		      SD10G_LANE_LANE_93(sd_index));
1680 
1681 	sdx5_inst_rmw(SD10G_LANE_LANE_94_R_ISCAN_REG_SET(0x1) |
1682 		      SD10G_LANE_LANE_94_R_TXEQ_REG_SET(0x1) |
1683 		      SD10G_LANE_LANE_94_R_MISC_REG_SET(0x1) |
1684 		      SD10G_LANE_LANE_94_R_SWING_REG_SET(0x1),
1685 		      SD10G_LANE_LANE_94_R_ISCAN_REG |
1686 		      SD10G_LANE_LANE_94_R_TXEQ_REG |
1687 		      SD10G_LANE_LANE_94_R_MISC_REG |
1688 		      SD10G_LANE_LANE_94_R_SWING_REG,
1689 		      sd_inst,
1690 		      SD10G_LANE_LANE_94(sd_index));
1691 
1692 	sdx5_inst_rmw(SD10G_LANE_LANE_9E_R_RXEQ_REG_SET(0x1),
1693 		      SD10G_LANE_LANE_9E_R_RXEQ_REG,
1694 		      sd_inst,
1695 		      SD10G_LANE_LANE_9E(sd_index));
1696 
1697 	sdx5_inst_rmw(SD10G_LANE_LANE_A1_R_SSC_FROM_HWT_SET(0x0) |
1698 		      SD10G_LANE_LANE_A1_R_CDR_FROM_HWT_SET(0x0) |
1699 		      SD10G_LANE_LANE_A1_R_PCLK_GATING_FROM_HWT_SET(0x1),
1700 		      SD10G_LANE_LANE_A1_R_SSC_FROM_HWT |
1701 		      SD10G_LANE_LANE_A1_R_CDR_FROM_HWT |
1702 		      SD10G_LANE_LANE_A1_R_PCLK_GATING_FROM_HWT,
1703 		      sd_inst,
1704 		      SD10G_LANE_LANE_A1(sd_index));
1705 
1706 	sdx5_rmw(SD_LANE_SD_LANE_CFG_RX_REF_SEL_SET(params->cmu_sel) |
1707 		 SD_LANE_SD_LANE_CFG_TX_REF_SEL_SET(params->cmu_sel),
1708 		 SD_LANE_SD_LANE_CFG_RX_REF_SEL |
1709 		 SD_LANE_SD_LANE_CFG_TX_REF_SEL,
1710 		 priv,
1711 		 SD_LANE_SD_LANE_CFG(lane_index));
1712 
1713 	sdx5_inst_rmw(SD10G_LANE_LANE_40_CFG_LANE_RESERVE_7_0_SET
1714 		      (params->cfg_lane_reserve_7_0),
1715 		      SD10G_LANE_LANE_40_CFG_LANE_RESERVE_7_0,
1716 		      sd_inst,
1717 		      SD10G_LANE_LANE_40(sd_index));
1718 
1719 	sdx5_inst_rmw(SD10G_LANE_LANE_50_CFG_SSC_RTL_CLK_SEL_SET
1720 		      (params->cfg_ssc_rtl_clk_sel),
1721 		      SD10G_LANE_LANE_50_CFG_SSC_RTL_CLK_SEL,
1722 		      sd_inst,
1723 		      SD10G_LANE_LANE_50(sd_index));
1724 
1725 	sdx5_inst_rmw(SD10G_LANE_LANE_35_CFG_TXRATE_1_0_SET
1726 		      (params->cfg_txrate_1_0) |
1727 		      SD10G_LANE_LANE_35_CFG_RXRATE_1_0_SET
1728 		      (params->cfg_rxrate_1_0),
1729 		      SD10G_LANE_LANE_35_CFG_TXRATE_1_0 |
1730 		      SD10G_LANE_LANE_35_CFG_RXRATE_1_0,
1731 		      sd_inst,
1732 		      SD10G_LANE_LANE_35(sd_index));
1733 
1734 	sdx5_inst_rmw(SD10G_LANE_LANE_94_R_DWIDTHCTRL_2_0_SET
1735 		      (params->r_d_width_ctrl_2_0),
1736 		      SD10G_LANE_LANE_94_R_DWIDTHCTRL_2_0,
1737 		      sd_inst,
1738 		      SD10G_LANE_LANE_94(sd_index));
1739 
1740 	sdx5_inst_rmw(SD10G_LANE_LANE_01_CFG_PMA_TX_CK_BITWIDTH_2_0_SET
1741 		      (params->cfg_pma_tx_ck_bitwidth_2_0),
1742 		      SD10G_LANE_LANE_01_CFG_PMA_TX_CK_BITWIDTH_2_0,
1743 		      sd_inst,
1744 		      SD10G_LANE_LANE_01(sd_index));
1745 
1746 	sdx5_inst_rmw(SD10G_LANE_LANE_30_CFG_RXDIV_SEL_2_0_SET
1747 		      (params->cfg_rxdiv_sel_2_0),
1748 		      SD10G_LANE_LANE_30_CFG_RXDIV_SEL_2_0,
1749 		      sd_inst,
1750 		      SD10G_LANE_LANE_30(sd_index));
1751 
1752 	sdx5_inst_rmw(SD10G_LANE_LANE_A2_R_PCS2PMA_PHYMODE_4_0_SET
1753 		      (params->r_pcs2pma_phymode_4_0),
1754 		      SD10G_LANE_LANE_A2_R_PCS2PMA_PHYMODE_4_0,
1755 		      sd_inst,
1756 		      SD10G_LANE_LANE_A2(sd_index));
1757 
1758 	sdx5_inst_rmw(SD10G_LANE_LANE_13_CFG_CDRCK_EN_SET(params->cfg_cdrck_en),
1759 		      SD10G_LANE_LANE_13_CFG_CDRCK_EN,
1760 		      sd_inst,
1761 		      SD10G_LANE_LANE_13(sd_index));
1762 
1763 	sdx5_inst_rmw(SD10G_LANE_LANE_23_CFG_DFECK_EN_SET
1764 		      (params->cfg_dfeck_en) |
1765 		      SD10G_LANE_LANE_23_CFG_DFE_PD_SET(params->cfg_dfe_pd) |
1766 		      SD10G_LANE_LANE_23_CFG_ERRAMP_PD_SET
1767 		      (params->cfg_erramp_pd),
1768 		      SD10G_LANE_LANE_23_CFG_DFECK_EN |
1769 		      SD10G_LANE_LANE_23_CFG_DFE_PD |
1770 		      SD10G_LANE_LANE_23_CFG_ERRAMP_PD,
1771 		      sd_inst,
1772 		      SD10G_LANE_LANE_23(sd_index));
1773 
1774 	sdx5_inst_rmw(SD10G_LANE_LANE_22_CFG_DFETAP_EN_5_1_SET
1775 		      (params->cfg_dfetap_en_5_1),
1776 		      SD10G_LANE_LANE_22_CFG_DFETAP_EN_5_1,
1777 		      sd_inst,
1778 		      SD10G_LANE_LANE_22(sd_index));
1779 
1780 	sdx5_inst_rmw(SD10G_LANE_LANE_1A_CFG_PI_DFE_EN_SET
1781 		      (params->cfg_pi_DFE_en),
1782 		      SD10G_LANE_LANE_1A_CFG_PI_DFE_EN,
1783 		      sd_inst,
1784 		      SD10G_LANE_LANE_1A(sd_index));
1785 
1786 	sdx5_inst_rmw(SD10G_LANE_LANE_02_CFG_EN_ADV_SET(params->cfg_en_adv) |
1787 		      SD10G_LANE_LANE_02_CFG_EN_MAIN_SET(params->cfg_en_main) |
1788 		      SD10G_LANE_LANE_02_CFG_EN_DLY_SET(params->cfg_en_dly) |
1789 		      SD10G_LANE_LANE_02_CFG_TAP_ADV_3_0_SET
1790 		      (params->cfg_tap_adv_3_0),
1791 		      SD10G_LANE_LANE_02_CFG_EN_ADV |
1792 		      SD10G_LANE_LANE_02_CFG_EN_MAIN |
1793 		      SD10G_LANE_LANE_02_CFG_EN_DLY |
1794 		      SD10G_LANE_LANE_02_CFG_TAP_ADV_3_0,
1795 		      sd_inst,
1796 		      SD10G_LANE_LANE_02(sd_index));
1797 
1798 	sdx5_inst_rmw(SD10G_LANE_LANE_03_CFG_TAP_MAIN_SET(params->cfg_tap_main),
1799 		      SD10G_LANE_LANE_03_CFG_TAP_MAIN,
1800 		      sd_inst,
1801 		      SD10G_LANE_LANE_03(sd_index));
1802 
1803 	sdx5_inst_rmw(SD10G_LANE_LANE_04_CFG_TAP_DLY_4_0_SET
1804 		      (params->cfg_tap_dly_4_0),
1805 		      SD10G_LANE_LANE_04_CFG_TAP_DLY_4_0,
1806 		      sd_inst,
1807 		      SD10G_LANE_LANE_04(sd_index));
1808 
1809 	sdx5_inst_rmw(SD10G_LANE_LANE_2F_CFG_VGA_CTRL_3_0_SET
1810 		      (params->cfg_vga_ctrl_3_0),
1811 		      SD10G_LANE_LANE_2F_CFG_VGA_CTRL_3_0,
1812 		      sd_inst,
1813 		      SD10G_LANE_LANE_2F(sd_index));
1814 
1815 	sdx5_inst_rmw(SD10G_LANE_LANE_2F_CFG_VGA_CP_2_0_SET
1816 		      (params->cfg_vga_cp_2_0),
1817 		      SD10G_LANE_LANE_2F_CFG_VGA_CP_2_0,
1818 		      sd_inst,
1819 		      SD10G_LANE_LANE_2F(sd_index));
1820 
1821 	sdx5_inst_rmw(SD10G_LANE_LANE_0B_CFG_EQ_RES_3_0_SET
1822 		      (params->cfg_eq_res_3_0),
1823 		      SD10G_LANE_LANE_0B_CFG_EQ_RES_3_0,
1824 		      sd_inst,
1825 		      SD10G_LANE_LANE_0B(sd_index));
1826 
1827 	sdx5_inst_rmw(SD10G_LANE_LANE_0D_CFG_EQR_BYP_SET(params->cfg_eq_r_byp),
1828 		      SD10G_LANE_LANE_0D_CFG_EQR_BYP,
1829 		      sd_inst,
1830 		      SD10G_LANE_LANE_0D(sd_index));
1831 
1832 	sdx5_inst_rmw(SD10G_LANE_LANE_0E_CFG_EQC_FORCE_3_0_SET
1833 		      (params->cfg_eq_c_force_3_0) |
1834 		      SD10G_LANE_LANE_0E_CFG_SUM_SETCM_EN_SET
1835 		      (params->cfg_sum_setcm_en),
1836 		      SD10G_LANE_LANE_0E_CFG_EQC_FORCE_3_0 |
1837 		      SD10G_LANE_LANE_0E_CFG_SUM_SETCM_EN,
1838 		      sd_inst,
1839 		      SD10G_LANE_LANE_0E(sd_index));
1840 
1841 	sdx5_inst_rmw(SD10G_LANE_LANE_23_CFG_EN_DFEDIG_SET
1842 		      (params->cfg_en_dfedig),
1843 		      SD10G_LANE_LANE_23_CFG_EN_DFEDIG,
1844 		      sd_inst,
1845 		      SD10G_LANE_LANE_23(sd_index));
1846 
1847 	sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_EN_PREEMPH_SET
1848 		      (params->cfg_en_preemph),
1849 		      SD10G_LANE_LANE_06_CFG_EN_PREEMPH,
1850 		      sd_inst,
1851 		      SD10G_LANE_LANE_06(sd_index));
1852 
1853 	sdx5_inst_rmw(SD10G_LANE_LANE_33_CFG_ITX_IPPREEMP_BASE_1_0_SET
1854 		      (params->cfg_itx_ippreemp_base_1_0) |
1855 		      SD10G_LANE_LANE_33_CFG_ITX_IPDRIVER_BASE_2_0_SET
1856 		      (params->cfg_itx_ipdriver_base_2_0),
1857 		      SD10G_LANE_LANE_33_CFG_ITX_IPPREEMP_BASE_1_0 |
1858 		      SD10G_LANE_LANE_33_CFG_ITX_IPDRIVER_BASE_2_0,
1859 		      sd_inst,
1860 		      SD10G_LANE_LANE_33(sd_index));
1861 
1862 	sdx5_inst_rmw(SD10G_LANE_LANE_52_CFG_IBIAS_TUNE_RESERVE_5_0_SET
1863 		      (params->cfg_ibias_tune_reserve_5_0),
1864 		      SD10G_LANE_LANE_52_CFG_IBIAS_TUNE_RESERVE_5_0,
1865 		      sd_inst,
1866 		      SD10G_LANE_LANE_52(sd_index));
1867 
1868 	sdx5_inst_rmw(SD10G_LANE_LANE_37_CFG_TXSWING_HALF_SET
1869 		      (params->cfg_txswing_half),
1870 		      SD10G_LANE_LANE_37_CFG_TXSWING_HALF,
1871 		      sd_inst,
1872 		      SD10G_LANE_LANE_37(sd_index));
1873 
1874 	sdx5_inst_rmw(SD10G_LANE_LANE_3C_CFG_DIS_2NDORDER_SET
1875 		      (params->cfg_dis_2nd_order),
1876 		      SD10G_LANE_LANE_3C_CFG_DIS_2NDORDER,
1877 		      sd_inst,
1878 		      SD10G_LANE_LANE_3C(sd_index));
1879 
1880 	sdx5_inst_rmw(SD10G_LANE_LANE_39_CFG_RX_SSC_LH_SET
1881 		      (params->cfg_rx_ssc_lh),
1882 		      SD10G_LANE_LANE_39_CFG_RX_SSC_LH,
1883 		      sd_inst,
1884 		      SD10G_LANE_LANE_39(sd_index));
1885 
1886 	sdx5_inst_rmw(SD10G_LANE_LANE_1A_CFG_PI_FLOOP_STEPS_1_0_SET
1887 		      (params->cfg_pi_floop_steps_1_0),
1888 		      SD10G_LANE_LANE_1A_CFG_PI_FLOOP_STEPS_1_0,
1889 		      sd_inst,
1890 		      SD10G_LANE_LANE_1A(sd_index));
1891 
1892 	sdx5_inst_rmw(SD10G_LANE_LANE_16_CFG_PI_EXT_DAC_23_16_SET
1893 		      (params->cfg_pi_ext_dac_23_16),
1894 		      SD10G_LANE_LANE_16_CFG_PI_EXT_DAC_23_16,
1895 		      sd_inst,
1896 		      SD10G_LANE_LANE_16(sd_index));
1897 
1898 	sdx5_inst_rmw(SD10G_LANE_LANE_15_CFG_PI_EXT_DAC_15_8_SET
1899 		      (params->cfg_pi_ext_dac_15_8),
1900 		      SD10G_LANE_LANE_15_CFG_PI_EXT_DAC_15_8,
1901 		      sd_inst,
1902 		      SD10G_LANE_LANE_15(sd_index));
1903 
1904 	sdx5_inst_rmw(SD10G_LANE_LANE_26_CFG_ISCAN_EXT_DAC_7_0_SET
1905 		      (params->cfg_iscan_ext_dac_7_0),
1906 		      SD10G_LANE_LANE_26_CFG_ISCAN_EXT_DAC_7_0,
1907 		      sd_inst,
1908 		      SD10G_LANE_LANE_26(sd_index));
1909 
1910 	sdx5_inst_rmw(SD10G_LANE_LANE_42_CFG_CDR_KF_GEN1_2_0_SET
1911 		      (params->cfg_cdr_kf_gen1_2_0),
1912 		      SD10G_LANE_LANE_42_CFG_CDR_KF_GEN1_2_0,
1913 		      sd_inst,
1914 		      SD10G_LANE_LANE_42(sd_index));
1915 
1916 	sdx5_inst_rmw(SD10G_LANE_LANE_0F_R_CDR_M_GEN1_7_0_SET
1917 		      (params->r_cdr_m_gen1_7_0),
1918 		      SD10G_LANE_LANE_0F_R_CDR_M_GEN1_7_0,
1919 		      sd_inst,
1920 		      SD10G_LANE_LANE_0F(sd_index));
1921 
1922 	sdx5_inst_rmw(SD10G_LANE_LANE_24_CFG_PI_BW_GEN1_3_0_SET
1923 		      (params->cfg_pi_bw_gen1_3_0),
1924 		      SD10G_LANE_LANE_24_CFG_PI_BW_GEN1_3_0,
1925 		      sd_inst,
1926 		      SD10G_LANE_LANE_24(sd_index));
1927 
1928 	sdx5_inst_rmw(SD10G_LANE_LANE_14_CFG_PI_EXT_DAC_7_0_SET
1929 		      (params->cfg_pi_ext_dac_7_0),
1930 		      SD10G_LANE_LANE_14_CFG_PI_EXT_DAC_7_0,
1931 		      sd_inst,
1932 		      SD10G_LANE_LANE_14(sd_index));
1933 
1934 	sdx5_inst_rmw(SD10G_LANE_LANE_1A_CFG_PI_STEPS_SET(params->cfg_pi_steps),
1935 		      SD10G_LANE_LANE_1A_CFG_PI_STEPS,
1936 		      sd_inst,
1937 		      SD10G_LANE_LANE_1A(sd_index));
1938 
1939 	sdx5_inst_rmw(SD10G_LANE_LANE_3A_CFG_MP_MAX_3_0_SET
1940 		      (params->cfg_mp_max_3_0),
1941 		      SD10G_LANE_LANE_3A_CFG_MP_MAX_3_0,
1942 		      sd_inst,
1943 		      SD10G_LANE_LANE_3A(sd_index));
1944 
1945 	sdx5_inst_rmw(SD10G_LANE_LANE_31_CFG_RSTN_DFEDIG_SET
1946 		      (params->cfg_rstn_dfedig),
1947 		      SD10G_LANE_LANE_31_CFG_RSTN_DFEDIG,
1948 		      sd_inst,
1949 		      SD10G_LANE_LANE_31(sd_index));
1950 
1951 	sdx5_inst_rmw(SD10G_LANE_LANE_48_CFG_ALOS_THR_3_0_SET
1952 		      (params->cfg_alos_thr_3_0),
1953 		      SD10G_LANE_LANE_48_CFG_ALOS_THR_3_0,
1954 		      sd_inst,
1955 		      SD10G_LANE_LANE_48(sd_index));
1956 
1957 	sdx5_inst_rmw(SD10G_LANE_LANE_36_CFG_PREDRV_SLEWRATE_1_0_SET
1958 		      (params->cfg_predrv_slewrate_1_0),
1959 		      SD10G_LANE_LANE_36_CFG_PREDRV_SLEWRATE_1_0,
1960 		      sd_inst,
1961 		      SD10G_LANE_LANE_36(sd_index));
1962 
1963 	sdx5_inst_rmw(SD10G_LANE_LANE_32_CFG_ITX_IPCML_BASE_1_0_SET
1964 		      (params->cfg_itx_ipcml_base_1_0),
1965 		      SD10G_LANE_LANE_32_CFG_ITX_IPCML_BASE_1_0,
1966 		      sd_inst,
1967 		      SD10G_LANE_LANE_32(sd_index));
1968 
1969 	sdx5_inst_rmw(SD10G_LANE_LANE_37_CFG_IP_PRE_BASE_1_0_SET
1970 		      (params->cfg_ip_pre_base_1_0),
1971 		      SD10G_LANE_LANE_37_CFG_IP_PRE_BASE_1_0,
1972 		      sd_inst,
1973 		      SD10G_LANE_LANE_37(sd_index));
1974 
1975 	sdx5_inst_rmw(SD10G_LANE_LANE_41_CFG_LANE_RESERVE_15_8_SET
1976 		      (params->cfg_lane_reserve_15_8),
1977 		      SD10G_LANE_LANE_41_CFG_LANE_RESERVE_15_8,
1978 		      sd_inst,
1979 		      SD10G_LANE_LANE_41(sd_index));
1980 
1981 	sdx5_inst_rmw(SD10G_LANE_LANE_9E_R_EN_AUTO_CDR_RSTN_SET
1982 		      (params->r_en_auto_cdr_rstn),
1983 		      SD10G_LANE_LANE_9E_R_EN_AUTO_CDR_RSTN,
1984 		      sd_inst,
1985 		      SD10G_LANE_LANE_9E(sd_index));
1986 
1987 	sdx5_inst_rmw(SD10G_LANE_LANE_0C_CFG_OSCAL_AFE_SET
1988 		      (params->cfg_oscal_afe) |
1989 		      SD10G_LANE_LANE_0C_CFG_PD_OSDAC_AFE_SET
1990 		      (params->cfg_pd_osdac_afe),
1991 		      SD10G_LANE_LANE_0C_CFG_OSCAL_AFE |
1992 		      SD10G_LANE_LANE_0C_CFG_PD_OSDAC_AFE,
1993 		      sd_inst,
1994 		      SD10G_LANE_LANE_0C(sd_index));
1995 
1996 	sdx5_inst_rmw(SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE_SET
1997 		      (params->cfg_resetb_oscal_afe[0]),
1998 		      SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE,
1999 		      sd_inst,
2000 		      SD10G_LANE_LANE_0B(sd_index));
2001 
2002 	sdx5_inst_rmw(SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE_SET
2003 		      (params->cfg_resetb_oscal_afe[1]),
2004 		      SD10G_LANE_LANE_0B_CFG_RESETB_OSCAL_AFE,
2005 		      sd_inst,
2006 		      SD10G_LANE_LANE_0B(sd_index));
2007 
2008 	sdx5_inst_rmw(SD10G_LANE_LANE_83_R_TX_POL_INV_SET
2009 		      (params->r_tx_pol_inv) |
2010 		      SD10G_LANE_LANE_83_R_RX_POL_INV_SET
2011 		      (params->r_rx_pol_inv),
2012 		      SD10G_LANE_LANE_83_R_TX_POL_INV |
2013 		      SD10G_LANE_LANE_83_R_RX_POL_INV,
2014 		      sd_inst,
2015 		      SD10G_LANE_LANE_83(sd_index));
2016 
2017 	sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_RX2TX_LP_EN_SET
2018 		      (params->cfg_rx2tx_lp_en) |
2019 		      SD10G_LANE_LANE_06_CFG_TX2RX_LP_EN_SET
2020 		      (params->cfg_tx2rx_lp_en),
2021 		      SD10G_LANE_LANE_06_CFG_RX2TX_LP_EN |
2022 		      SD10G_LANE_LANE_06_CFG_TX2RX_LP_EN,
2023 		      sd_inst,
2024 		      SD10G_LANE_LANE_06(sd_index));
2025 
2026 	sdx5_inst_rmw(SD10G_LANE_LANE_0E_CFG_RXLB_EN_SET(params->cfg_rxlb_en) |
2027 		      SD10G_LANE_LANE_0E_CFG_TXLB_EN_SET(params->cfg_txlb_en),
2028 		      SD10G_LANE_LANE_0E_CFG_RXLB_EN |
2029 		      SD10G_LANE_LANE_0E_CFG_TXLB_EN,
2030 		      sd_inst,
2031 		      SD10G_LANE_LANE_0E(sd_index));
2032 
2033 	sdx5_rmw(SD_LANE_SD_LANE_CFG_MACRO_RST_SET(0),
2034 		 SD_LANE_SD_LANE_CFG_MACRO_RST,
2035 		 priv,
2036 		 SD_LANE_SD_LANE_CFG(lane_index));
2037 
2038 	sdx5_inst_rmw(SD10G_LANE_LANE_50_CFG_SSC_RESETB_SET(1),
2039 		      SD10G_LANE_LANE_50_CFG_SSC_RESETB,
2040 		      sd_inst,
2041 		      SD10G_LANE_LANE_50(sd_index));
2042 
2043 	sdx5_rmw(SD10G_LANE_LANE_50_CFG_SSC_RESETB_SET(1),
2044 		 SD10G_LANE_LANE_50_CFG_SSC_RESETB,
2045 		 priv,
2046 		 SD10G_LANE_LANE_50(sd_index));
2047 
2048 	sdx5_rmw(SD_LANE_MISC_SD_125_RST_DIS_SET(params->fx_100),
2049 		 SD_LANE_MISC_SD_125_RST_DIS,
2050 		 priv,
2051 		 SD_LANE_MISC(lane_index));
2052 
2053 	sdx5_rmw(SD_LANE_MISC_RX_ENA_SET(params->fx_100),
2054 		 SD_LANE_MISC_RX_ENA,
2055 		 priv,
2056 		 SD_LANE_MISC(lane_index));
2057 
2058 	sdx5_rmw(SD_LANE_MISC_MUX_ENA_SET(params->fx_100),
2059 		 SD_LANE_MISC_MUX_ENA,
2060 		 priv,
2061 		 SD_LANE_MISC(lane_index));
2062 
2063 	usleep_range(3000, 6000);
2064 
2065 	value = readl(sdx5_addr(regs, SD_LANE_SD_LANE_STAT(lane_index)));
2066 	value = SD_LANE_SD_LANE_STAT_PMA_RST_DONE_GET(value);
2067 	if (value != 1) {
2068 		dev_err(dev, "10G PMA Reset failed: 0x%x\n", value);
2069 		return -EINVAL;
2070 	}
2071 
2072 	sdx5_rmw(SD_LANE_SD_SER_RST_SER_RST_SET(0x0),
2073 		 SD_LANE_SD_SER_RST_SER_RST,
2074 		 priv,
2075 		 SD_LANE_SD_SER_RST(lane_index));
2076 
2077 	sdx5_rmw(SD_LANE_SD_DES_RST_DES_RST_SET(0x0),
2078 		 SD_LANE_SD_DES_RST_DES_RST,
2079 		 priv,
2080 		 SD_LANE_SD_DES_RST(lane_index));
2081 
2082 	return 0;
2083 }
2084 
sparx5_sd25g28_config(struct sparx5_serdes_macro * macro,bool reset)2085 static int sparx5_sd25g28_config(struct sparx5_serdes_macro *macro, bool reset)
2086 {
2087 	struct sparx5_sd25g28_media_preset media = media_presets_25g[macro->media];
2088 	struct sparx5_sd25g28_mode_preset mode;
2089 	struct sparx5_sd25g28_args args = {
2090 		.rxinvert = 1,
2091 		.txinvert = 0,
2092 		.txswing = 240,
2093 		.com_pll_reserve = 0xf,
2094 		.reg_rst = reset,
2095 	};
2096 	struct sparx5_sd25g28_params params;
2097 	int err;
2098 
2099 	err = sparx5_sd10g25_get_mode_preset(macro, &mode);
2100 	if (err)
2101 		return err;
2102 	sparx5_sd25g28_get_params(macro, &media, &mode, &args, &params);
2103 	sparx5_sd25g28_reset(macro->priv->regs, &params, macro->stpidx);
2104 	return sparx5_sd25g28_apply_params(macro, &params);
2105 }
2106 
sparx5_sd10g28_config(struct sparx5_serdes_macro * macro,bool reset)2107 static int sparx5_sd10g28_config(struct sparx5_serdes_macro *macro, bool reset)
2108 {
2109 	struct sparx5_sd10g28_media_preset media = media_presets_10g[macro->media];
2110 	struct sparx5_sd10g28_mode_preset mode;
2111 	struct sparx5_sd10g28_params params;
2112 	struct sparx5_sd10g28_args args = {
2113 		.is_6g = (macro->serdestype == SPX5_SDT_6G),
2114 		.txinvert = 0,
2115 		.rxinvert = 1,
2116 		.txswing = 240,
2117 		.reg_rst = reset,
2118 		.skip_cmu_cfg = reset,
2119 	};
2120 	int err;
2121 
2122 	err = sparx5_sd10g28_get_mode_preset(macro, &mode, &args);
2123 	if (err)
2124 		return err;
2125 	sparx5_sd10g28_get_params(macro, &media, &mode, &args, &params);
2126 	sparx5_sd10g28_reset(macro->priv->regs, macro->sidx);
2127 	return sparx5_sd10g28_apply_params(macro, &params);
2128 }
2129 
2130 /* Power down serdes TX driver */
sparx5_serdes_power_save(struct sparx5_serdes_macro * macro,u32 pwdn)2131 static int sparx5_serdes_power_save(struct sparx5_serdes_macro *macro, u32 pwdn)
2132 {
2133 	struct sparx5_serdes_private *priv = macro->priv;
2134 	void __iomem *sd_inst, *sd_lane_inst;
2135 
2136 	if (macro->serdestype == SPX5_SDT_6G)
2137 		sd_inst = sdx5_inst_get(priv, TARGET_SD6G_LANE, macro->stpidx);
2138 	else if (macro->serdestype == SPX5_SDT_10G)
2139 		sd_inst = sdx5_inst_get(priv, TARGET_SD10G_LANE, macro->stpidx);
2140 	else
2141 		sd_inst = sdx5_inst_get(priv, TARGET_SD25G_LANE, macro->stpidx);
2142 
2143 	if (macro->serdestype == SPX5_SDT_25G) {
2144 		sd_lane_inst = sdx5_inst_get(priv, TARGET_SD_LANE_25G,
2145 					     macro->stpidx);
2146 		/* Take serdes out of reset */
2147 		sdx5_inst_rmw(SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST_SET(0),
2148 			      SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST, sd_lane_inst,
2149 			      SD_LANE_25G_SD_LANE_CFG(0));
2150 
2151 		/* Configure optimal settings for quiet mode */
2152 		sdx5_inst_rmw(SD_LANE_25G_QUIET_MODE_6G_QUIET_MODE_SET(SPX5_SERDES_QUIET_MODE_VAL),
2153 			      SD_LANE_25G_QUIET_MODE_6G_QUIET_MODE,
2154 			      sd_lane_inst, SD_LANE_25G_QUIET_MODE_6G(0));
2155 
2156 		sdx5_inst_rmw(SD25G_LANE_LANE_04_LN_CFG_PD_DRIVER_SET(pwdn),
2157 			      SD25G_LANE_LANE_04_LN_CFG_PD_DRIVER,
2158 			      sd_inst,
2159 			      SD25G_LANE_LANE_04(0));
2160 	} else {
2161 		/* 6G and 10G */
2162 		sd_lane_inst = sdx5_inst_get(priv, TARGET_SD_LANE, macro->sidx);
2163 
2164 		/* Take serdes out of reset */
2165 		sdx5_inst_rmw(SD_LANE_SD_LANE_CFG_EXT_CFG_RST_SET(0),
2166 			      SD_LANE_SD_LANE_CFG_EXT_CFG_RST, sd_lane_inst,
2167 			      SD_LANE_SD_LANE_CFG(0));
2168 
2169 		/* Configure optimal settings for quiet mode */
2170 		sdx5_inst_rmw(SD_LANE_QUIET_MODE_6G_QUIET_MODE_SET(SPX5_SERDES_QUIET_MODE_VAL),
2171 			      SD_LANE_QUIET_MODE_6G_QUIET_MODE, sd_lane_inst,
2172 			      SD_LANE_QUIET_MODE_6G(0));
2173 
2174 		sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_PD_DRIVER_SET(pwdn),
2175 			      SD10G_LANE_LANE_06_CFG_PD_DRIVER,
2176 			      sd_inst,
2177 			      SD10G_LANE_LANE_06(0));
2178 	}
2179 	return 0;
2180 }
2181 
sparx5_serdes_clock_config(struct sparx5_serdes_macro * macro)2182 static int sparx5_serdes_clock_config(struct sparx5_serdes_macro *macro)
2183 {
2184 	struct sparx5_serdes_private *priv = macro->priv;
2185 
2186 	if (macro->serdesmode == SPX5_SD_MODE_100FX) {
2187 		u32 freq = priv->coreclock == 250000000 ? 2 :
2188 			priv->coreclock == 500000000 ? 1 : 0;
2189 
2190 		sdx5_rmw(SD_LANE_MISC_CORE_CLK_FREQ_SET(freq),
2191 			 SD_LANE_MISC_CORE_CLK_FREQ,
2192 			 priv,
2193 			 SD_LANE_MISC(macro->sidx));
2194 	}
2195 	return 0;
2196 }
2197 
sparx5_serdes_get_serdesmode(phy_interface_t portmode,int speed)2198 static int sparx5_serdes_get_serdesmode(phy_interface_t portmode, int speed)
2199 {
2200 	switch (portmode) {
2201 	case PHY_INTERFACE_MODE_1000BASEX:
2202 	case PHY_INTERFACE_MODE_2500BASEX:
2203 		if (speed == SPEED_2500)
2204 			return SPX5_SD_MODE_2G5;
2205 		if (speed == SPEED_100)
2206 			return SPX5_SD_MODE_100FX;
2207 		return SPX5_SD_MODE_1000BASEX;
2208 	case PHY_INTERFACE_MODE_SGMII:
2209 		/* The same Serdes mode is used for both SGMII and 1000BaseX */
2210 		return SPX5_SD_MODE_1000BASEX;
2211 	case PHY_INTERFACE_MODE_QSGMII:
2212 		return SPX5_SD_MODE_QSGMII;
2213 	case PHY_INTERFACE_MODE_10GBASER:
2214 		return SPX5_SD_MODE_SFI;
2215 	default:
2216 		return -EINVAL;
2217 	}
2218 }
2219 
sparx5_serdes_config(struct sparx5_serdes_macro * macro)2220 static int sparx5_serdes_config(struct sparx5_serdes_macro *macro)
2221 {
2222 	struct device *dev = macro->priv->dev;
2223 	int serdesmode;
2224 	int err;
2225 
2226 	serdesmode = sparx5_serdes_get_serdesmode(macro->portmode, macro->speed);
2227 	if (serdesmode < 0) {
2228 		dev_err(dev, "SerDes %u, interface not supported: %s\n",
2229 			macro->sidx,
2230 			phy_modes(macro->portmode));
2231 		return serdesmode;
2232 	}
2233 	macro->serdesmode = serdesmode;
2234 
2235 	sparx5_serdes_clock_config(macro);
2236 
2237 	if (macro->serdestype == SPX5_SDT_25G)
2238 		err = sparx5_sd25g28_config(macro, false);
2239 	else
2240 		err = sparx5_sd10g28_config(macro, false);
2241 	if (err) {
2242 		dev_err(dev, "SerDes %u, config error: %d\n",
2243 			macro->sidx, err);
2244 	}
2245 	return err;
2246 }
2247 
sparx5_serdes_power_on(struct phy * phy)2248 static int sparx5_serdes_power_on(struct phy *phy)
2249 {
2250 	struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
2251 
2252 	return sparx5_serdes_power_save(macro, false);
2253 }
2254 
sparx5_serdes_power_off(struct phy * phy)2255 static int sparx5_serdes_power_off(struct phy *phy)
2256 {
2257 	struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
2258 
2259 	return sparx5_serdes_power_save(macro, true);
2260 }
2261 
sparx5_serdes_set_mode(struct phy * phy,enum phy_mode mode,int submode)2262 static int sparx5_serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
2263 {
2264 	struct sparx5_serdes_macro *macro;
2265 
2266 	if (mode != PHY_MODE_ETHERNET)
2267 		return -EINVAL;
2268 
2269 	switch (submode) {
2270 	case PHY_INTERFACE_MODE_1000BASEX:
2271 	case PHY_INTERFACE_MODE_2500BASEX:
2272 	case PHY_INTERFACE_MODE_SGMII:
2273 	case PHY_INTERFACE_MODE_QSGMII:
2274 	case PHY_INTERFACE_MODE_10GBASER:
2275 		macro = phy_get_drvdata(phy);
2276 		macro->portmode = submode;
2277 		sparx5_serdes_config(macro);
2278 		return 0;
2279 	default:
2280 		return -EINVAL;
2281 	}
2282 }
2283 
sparx5_serdes_set_media(struct phy * phy,enum phy_media media)2284 static int sparx5_serdes_set_media(struct phy *phy, enum phy_media media)
2285 {
2286 	struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
2287 
2288 	if (media != macro->media) {
2289 		macro->media = media;
2290 		if (macro->serdesmode != SPX5_SD_MODE_NONE)
2291 			sparx5_serdes_config(macro);
2292 	}
2293 	return 0;
2294 }
2295 
sparx5_serdes_set_speed(struct phy * phy,int speed)2296 static int sparx5_serdes_set_speed(struct phy *phy, int speed)
2297 {
2298 	struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
2299 
2300 	if (macro->sidx < SPX5_SERDES_10G_START && speed > SPEED_5000)
2301 		return -EINVAL;
2302 	if (macro->sidx < SPX5_SERDES_25G_START && speed > SPEED_10000)
2303 		return -EINVAL;
2304 	if (speed != macro->speed) {
2305 		macro->speed = speed;
2306 		if (macro->serdesmode != SPX5_SD_MODE_NONE)
2307 			sparx5_serdes_config(macro);
2308 	}
2309 	return 0;
2310 }
2311 
sparx5_serdes_reset(struct phy * phy)2312 static int sparx5_serdes_reset(struct phy *phy)
2313 {
2314 	struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
2315 	int err;
2316 
2317 	if (macro->serdestype == SPX5_SDT_25G)
2318 		err = sparx5_sd25g28_config(macro, true);
2319 	else
2320 		err = sparx5_sd10g28_config(macro, true);
2321 	if (err) {
2322 		dev_err(&phy->dev, "SerDes %u, reset error: %d\n",
2323 			macro->sidx, err);
2324 	}
2325 	return err;
2326 }
2327 
sparx5_serdes_validate(struct phy * phy,enum phy_mode mode,int submode,union phy_configure_opts * opts)2328 static int sparx5_serdes_validate(struct phy *phy, enum phy_mode mode,
2329 					int submode,
2330 					union phy_configure_opts *opts)
2331 {
2332 	struct sparx5_serdes_macro *macro = phy_get_drvdata(phy);
2333 
2334 	if (mode != PHY_MODE_ETHERNET)
2335 		return -EINVAL;
2336 
2337 	if (macro->speed == 0)
2338 		return -EINVAL;
2339 
2340 	if (macro->sidx < SPX5_SERDES_10G_START && macro->speed > SPEED_5000)
2341 		return -EINVAL;
2342 	if (macro->sidx < SPX5_SERDES_25G_START && macro->speed > SPEED_10000)
2343 		return -EINVAL;
2344 
2345 	switch (submode) {
2346 	case PHY_INTERFACE_MODE_1000BASEX:
2347 		if (macro->speed != SPEED_100 && /* This is for 100BASE-FX */
2348 		    macro->speed != SPEED_1000)
2349 			return -EINVAL;
2350 		break;
2351 	case PHY_INTERFACE_MODE_SGMII:
2352 	case PHY_INTERFACE_MODE_2500BASEX:
2353 	case PHY_INTERFACE_MODE_QSGMII:
2354 		if (macro->speed >= SPEED_5000)
2355 			return -EINVAL;
2356 		break;
2357 	case PHY_INTERFACE_MODE_10GBASER:
2358 		if (macro->speed < SPEED_5000)
2359 			return -EINVAL;
2360 		break;
2361 	default:
2362 		return -EINVAL;
2363 	}
2364 	return 0;
2365 }
2366 
2367 static const struct phy_ops sparx5_serdes_ops = {
2368 	.power_on	= sparx5_serdes_power_on,
2369 	.power_off	= sparx5_serdes_power_off,
2370 	.set_mode	= sparx5_serdes_set_mode,
2371 	.set_media	= sparx5_serdes_set_media,
2372 	.set_speed	= sparx5_serdes_set_speed,
2373 	.reset		= sparx5_serdes_reset,
2374 	.validate	= sparx5_serdes_validate,
2375 	.owner		= THIS_MODULE,
2376 };
2377 
sparx5_phy_create(struct sparx5_serdes_private * priv,int idx,struct phy ** phy)2378 static int sparx5_phy_create(struct sparx5_serdes_private *priv,
2379 			   int idx, struct phy **phy)
2380 {
2381 	struct sparx5_serdes_macro *macro;
2382 
2383 	*phy = devm_phy_create(priv->dev, NULL, &sparx5_serdes_ops);
2384 	if (IS_ERR(*phy))
2385 		return PTR_ERR(*phy);
2386 
2387 	macro = devm_kzalloc(priv->dev, sizeof(*macro), GFP_KERNEL);
2388 	if (!macro)
2389 		return -ENOMEM;
2390 
2391 	macro->sidx = idx;
2392 	macro->priv = priv;
2393 	macro->speed = SPEED_UNKNOWN;
2394 	if (idx < SPX5_SERDES_10G_START) {
2395 		macro->serdestype = SPX5_SDT_6G;
2396 		macro->stpidx = macro->sidx;
2397 	} else if (idx < SPX5_SERDES_25G_START) {
2398 		macro->serdestype = SPX5_SDT_10G;
2399 		macro->stpidx = macro->sidx - SPX5_SERDES_10G_START;
2400 	} else {
2401 		macro->serdestype = SPX5_SDT_25G;
2402 		macro->stpidx = macro->sidx - SPX5_SERDES_25G_START;
2403 	}
2404 
2405 	phy_set_drvdata(*phy, macro);
2406 
2407 	/* Power off serdes by default */
2408 	sparx5_serdes_power_off(*phy);
2409 
2410 	return 0;
2411 }
2412 
2413 static struct sparx5_serdes_io_resource sparx5_serdes_iomap[] =  {
2414 	{ TARGET_SD_CMU,          0x0 },      /* 0x610808000: sd_cmu_0 */
2415 	{ TARGET_SD_CMU + 1,      0x8000 },   /* 0x610810000: sd_cmu_1 */
2416 	{ TARGET_SD_CMU + 2,      0x10000 },  /* 0x610818000: sd_cmu_2 */
2417 	{ TARGET_SD_CMU + 3,      0x18000 },  /* 0x610820000: sd_cmu_3 */
2418 	{ TARGET_SD_CMU + 4,      0x20000 },  /* 0x610828000: sd_cmu_4 */
2419 	{ TARGET_SD_CMU + 5,      0x28000 },  /* 0x610830000: sd_cmu_5 */
2420 	{ TARGET_SD_CMU + 6,      0x30000 },  /* 0x610838000: sd_cmu_6 */
2421 	{ TARGET_SD_CMU + 7,      0x38000 },  /* 0x610840000: sd_cmu_7 */
2422 	{ TARGET_SD_CMU + 8,      0x40000 },  /* 0x610848000: sd_cmu_8 */
2423 	{ TARGET_SD_CMU_CFG,      0x48000 },  /* 0x610850000: sd_cmu_cfg_0 */
2424 	{ TARGET_SD_CMU_CFG + 1,  0x50000 },  /* 0x610858000: sd_cmu_cfg_1 */
2425 	{ TARGET_SD_CMU_CFG + 2,  0x58000 },  /* 0x610860000: sd_cmu_cfg_2 */
2426 	{ TARGET_SD_CMU_CFG + 3,  0x60000 },  /* 0x610868000: sd_cmu_cfg_3 */
2427 	{ TARGET_SD_CMU_CFG + 4,  0x68000 },  /* 0x610870000: sd_cmu_cfg_4 */
2428 	{ TARGET_SD_CMU_CFG + 5,  0x70000 },  /* 0x610878000: sd_cmu_cfg_5 */
2429 	{ TARGET_SD_CMU_CFG + 6,  0x78000 },  /* 0x610880000: sd_cmu_cfg_6 */
2430 	{ TARGET_SD_CMU_CFG + 7,  0x80000 },  /* 0x610888000: sd_cmu_cfg_7 */
2431 	{ TARGET_SD_CMU_CFG + 8,  0x88000 },  /* 0x610890000: sd_cmu_cfg_8 */
2432 	{ TARGET_SD6G_LANE,       0x90000 },  /* 0x610898000: sd6g_lane_0 */
2433 	{ TARGET_SD6G_LANE + 1,   0x98000 },  /* 0x6108a0000: sd6g_lane_1 */
2434 	{ TARGET_SD6G_LANE + 2,   0xa0000 },  /* 0x6108a8000: sd6g_lane_2 */
2435 	{ TARGET_SD6G_LANE + 3,   0xa8000 },  /* 0x6108b0000: sd6g_lane_3 */
2436 	{ TARGET_SD6G_LANE + 4,   0xb0000 },  /* 0x6108b8000: sd6g_lane_4 */
2437 	{ TARGET_SD6G_LANE + 5,   0xb8000 },  /* 0x6108c0000: sd6g_lane_5 */
2438 	{ TARGET_SD6G_LANE + 6,   0xc0000 },  /* 0x6108c8000: sd6g_lane_6 */
2439 	{ TARGET_SD6G_LANE + 7,   0xc8000 },  /* 0x6108d0000: sd6g_lane_7 */
2440 	{ TARGET_SD6G_LANE + 8,   0xd0000 },  /* 0x6108d8000: sd6g_lane_8 */
2441 	{ TARGET_SD6G_LANE + 9,   0xd8000 },  /* 0x6108e0000: sd6g_lane_9 */
2442 	{ TARGET_SD6G_LANE + 10,  0xe0000 },  /* 0x6108e8000: sd6g_lane_10 */
2443 	{ TARGET_SD6G_LANE + 11,  0xe8000 },  /* 0x6108f0000: sd6g_lane_11 */
2444 	{ TARGET_SD6G_LANE + 12,  0xf0000 },  /* 0x6108f8000: sd6g_lane_12 */
2445 	{ TARGET_SD10G_LANE,      0xf8000 },  /* 0x610900000: sd10g_lane_0 */
2446 	{ TARGET_SD10G_LANE + 1,  0x100000 }, /* 0x610908000: sd10g_lane_1 */
2447 	{ TARGET_SD10G_LANE + 2,  0x108000 }, /* 0x610910000: sd10g_lane_2 */
2448 	{ TARGET_SD10G_LANE + 3,  0x110000 }, /* 0x610918000: sd10g_lane_3 */
2449 	{ TARGET_SD_LANE,         0x1a0000 }, /* 0x6109a8000: sd_lane_0 */
2450 	{ TARGET_SD_LANE + 1,     0x1a8000 }, /* 0x6109b0000: sd_lane_1 */
2451 	{ TARGET_SD_LANE + 2,     0x1b0000 }, /* 0x6109b8000: sd_lane_2 */
2452 	{ TARGET_SD_LANE + 3,     0x1b8000 }, /* 0x6109c0000: sd_lane_3 */
2453 	{ TARGET_SD_LANE + 4,     0x1c0000 }, /* 0x6109c8000: sd_lane_4 */
2454 	{ TARGET_SD_LANE + 5,     0x1c8000 }, /* 0x6109d0000: sd_lane_5 */
2455 	{ TARGET_SD_LANE + 6,     0x1d0000 }, /* 0x6109d8000: sd_lane_6 */
2456 	{ TARGET_SD_LANE + 7,     0x1d8000 }, /* 0x6109e0000: sd_lane_7 */
2457 	{ TARGET_SD_LANE + 8,     0x1e0000 }, /* 0x6109e8000: sd_lane_8 */
2458 	{ TARGET_SD_LANE + 9,     0x1e8000 }, /* 0x6109f0000: sd_lane_9 */
2459 	{ TARGET_SD_LANE + 10,    0x1f0000 }, /* 0x6109f8000: sd_lane_10 */
2460 	{ TARGET_SD_LANE + 11,    0x1f8000 }, /* 0x610a00000: sd_lane_11 */
2461 	{ TARGET_SD_LANE + 12,    0x200000 }, /* 0x610a08000: sd_lane_12 */
2462 	{ TARGET_SD_LANE + 13,    0x208000 }, /* 0x610a10000: sd_lane_13 */
2463 	{ TARGET_SD_LANE + 14,    0x210000 }, /* 0x610a18000: sd_lane_14 */
2464 	{ TARGET_SD_LANE + 15,    0x218000 }, /* 0x610a20000: sd_lane_15 */
2465 	{ TARGET_SD_LANE + 16,    0x220000 }, /* 0x610a28000: sd_lane_16 */
2466 	{ TARGET_SD_CMU + 9,      0x400000 }, /* 0x610c08000: sd_cmu_9 */
2467 	{ TARGET_SD_CMU + 10,     0x408000 }, /* 0x610c10000: sd_cmu_10 */
2468 	{ TARGET_SD_CMU + 11,     0x410000 }, /* 0x610c18000: sd_cmu_11 */
2469 	{ TARGET_SD_CMU + 12,     0x418000 }, /* 0x610c20000: sd_cmu_12 */
2470 	{ TARGET_SD_CMU + 13,     0x420000 }, /* 0x610c28000: sd_cmu_13 */
2471 	{ TARGET_SD_CMU_CFG + 9,  0x428000 }, /* 0x610c30000: sd_cmu_cfg_9 */
2472 	{ TARGET_SD_CMU_CFG + 10, 0x430000 }, /* 0x610c38000: sd_cmu_cfg_10 */
2473 	{ TARGET_SD_CMU_CFG + 11, 0x438000 }, /* 0x610c40000: sd_cmu_cfg_11 */
2474 	{ TARGET_SD_CMU_CFG + 12, 0x440000 }, /* 0x610c48000: sd_cmu_cfg_12 */
2475 	{ TARGET_SD_CMU_CFG + 13, 0x448000 }, /* 0x610c50000: sd_cmu_cfg_13 */
2476 	{ TARGET_SD10G_LANE + 4,  0x450000 }, /* 0x610c58000: sd10g_lane_4 */
2477 	{ TARGET_SD10G_LANE + 5,  0x458000 }, /* 0x610c60000: sd10g_lane_5 */
2478 	{ TARGET_SD10G_LANE + 6,  0x460000 }, /* 0x610c68000: sd10g_lane_6 */
2479 	{ TARGET_SD10G_LANE + 7,  0x468000 }, /* 0x610c70000: sd10g_lane_7 */
2480 	{ TARGET_SD10G_LANE + 8,  0x470000 }, /* 0x610c78000: sd10g_lane_8 */
2481 	{ TARGET_SD10G_LANE + 9,  0x478000 }, /* 0x610c80000: sd10g_lane_9 */
2482 	{ TARGET_SD10G_LANE + 10, 0x480000 }, /* 0x610c88000: sd10g_lane_10 */
2483 	{ TARGET_SD10G_LANE + 11, 0x488000 }, /* 0x610c90000: sd10g_lane_11 */
2484 	{ TARGET_SD25G_LANE,      0x490000 }, /* 0x610c98000: sd25g_lane_0 */
2485 	{ TARGET_SD25G_LANE + 1,  0x498000 }, /* 0x610ca0000: sd25g_lane_1 */
2486 	{ TARGET_SD25G_LANE + 2,  0x4a0000 }, /* 0x610ca8000: sd25g_lane_2 */
2487 	{ TARGET_SD25G_LANE + 3,  0x4a8000 }, /* 0x610cb0000: sd25g_lane_3 */
2488 	{ TARGET_SD25G_LANE + 4,  0x4b0000 }, /* 0x610cb8000: sd25g_lane_4 */
2489 	{ TARGET_SD25G_LANE + 5,  0x4b8000 }, /* 0x610cc0000: sd25g_lane_5 */
2490 	{ TARGET_SD25G_LANE + 6,  0x4c0000 }, /* 0x610cc8000: sd25g_lane_6 */
2491 	{ TARGET_SD25G_LANE + 7,  0x4c8000 }, /* 0x610cd0000: sd25g_lane_7 */
2492 	{ TARGET_SD_LANE + 17,    0x550000 }, /* 0x610d58000: sd_lane_17 */
2493 	{ TARGET_SD_LANE + 18,    0x558000 }, /* 0x610d60000: sd_lane_18 */
2494 	{ TARGET_SD_LANE + 19,    0x560000 }, /* 0x610d68000: sd_lane_19 */
2495 	{ TARGET_SD_LANE + 20,    0x568000 }, /* 0x610d70000: sd_lane_20 */
2496 	{ TARGET_SD_LANE + 21,    0x570000 }, /* 0x610d78000: sd_lane_21 */
2497 	{ TARGET_SD_LANE + 22,    0x578000 }, /* 0x610d80000: sd_lane_22 */
2498 	{ TARGET_SD_LANE + 23,    0x580000 }, /* 0x610d88000: sd_lane_23 */
2499 	{ TARGET_SD_LANE + 24,    0x588000 }, /* 0x610d90000: sd_lane_24 */
2500 	{ TARGET_SD_LANE_25G,     0x590000 }, /* 0x610d98000: sd_lane_25g_25 */
2501 	{ TARGET_SD_LANE_25G + 1, 0x598000 }, /* 0x610da0000: sd_lane_25g_26 */
2502 	{ TARGET_SD_LANE_25G + 2, 0x5a0000 }, /* 0x610da8000: sd_lane_25g_27 */
2503 	{ TARGET_SD_LANE_25G + 3, 0x5a8000 }, /* 0x610db0000: sd_lane_25g_28 */
2504 	{ TARGET_SD_LANE_25G + 4, 0x5b0000 }, /* 0x610db8000: sd_lane_25g_29 */
2505 	{ TARGET_SD_LANE_25G + 5, 0x5b8000 }, /* 0x610dc0000: sd_lane_25g_30 */
2506 	{ TARGET_SD_LANE_25G + 6, 0x5c0000 }, /* 0x610dc8000: sd_lane_25g_31 */
2507 	{ TARGET_SD_LANE_25G + 7, 0x5c8000 }, /* 0x610dd0000: sd_lane_25g_32 */
2508 };
2509 
2510 /* Client lookup function, uses serdes index */
sparx5_serdes_xlate(struct device * dev,struct of_phandle_args * args)2511 static struct phy *sparx5_serdes_xlate(struct device *dev,
2512 				     struct of_phandle_args *args)
2513 {
2514 	struct sparx5_serdes_private *priv = dev_get_drvdata(dev);
2515 	int idx;
2516 	unsigned int sidx;
2517 
2518 	if (args->args_count != 1)
2519 		return ERR_PTR(-EINVAL);
2520 
2521 	sidx = args->args[0];
2522 
2523 	/* Check validity: ERR_PTR(-ENODEV) if not valid */
2524 	for (idx = 0; idx < SPX5_SERDES_MAX; idx++) {
2525 		struct sparx5_serdes_macro *macro =
2526 			phy_get_drvdata(priv->phys[idx]);
2527 
2528 		if (sidx != macro->sidx)
2529 			continue;
2530 
2531 		return priv->phys[idx];
2532 	}
2533 	return ERR_PTR(-ENODEV);
2534 }
2535 
sparx5_serdes_probe(struct platform_device * pdev)2536 static int sparx5_serdes_probe(struct platform_device *pdev)
2537 {
2538 	struct device_node *np = pdev->dev.of_node;
2539 	struct sparx5_serdes_private *priv;
2540 	struct phy_provider *provider;
2541 	struct resource *iores;
2542 	void __iomem *iomem;
2543 	unsigned long clock;
2544 	struct clk *clk;
2545 	int idx;
2546 	int err;
2547 
2548 	if (!np && !pdev->dev.platform_data)
2549 		return -ENODEV;
2550 
2551 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
2552 	if (!priv)
2553 		return -ENOMEM;
2554 
2555 	platform_set_drvdata(pdev, priv);
2556 	priv->dev = &pdev->dev;
2557 
2558 	/* Get coreclock */
2559 	clk = devm_clk_get(priv->dev, NULL);
2560 	if (IS_ERR(clk)) {
2561 		dev_err(priv->dev, "Failed to get coreclock\n");
2562 		return PTR_ERR(clk);
2563 	}
2564 	clock = clk_get_rate(clk);
2565 	if (clock == 0) {
2566 		dev_err(priv->dev, "Invalid coreclock %lu\n", clock);
2567 		return -EINVAL;
2568 	}
2569 	priv->coreclock = clock;
2570 
2571 	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
2572 	if (!iores) {
2573 		dev_err(priv->dev, "Invalid resource\n");
2574 		return -EINVAL;
2575 	}
2576 	iomem = devm_ioremap(priv->dev, iores->start, resource_size(iores));
2577 	if (!iomem) {
2578 		dev_err(priv->dev, "Unable to get serdes registers: %s\n",
2579 			iores->name);
2580 		return -ENOMEM;
2581 	}
2582 	for (idx = 0; idx < ARRAY_SIZE(sparx5_serdes_iomap); idx++) {
2583 		struct sparx5_serdes_io_resource *iomap = &sparx5_serdes_iomap[idx];
2584 
2585 		priv->regs[iomap->id] = iomem + iomap->offset;
2586 	}
2587 	for (idx = 0; idx < SPX5_SERDES_MAX; idx++) {
2588 		err = sparx5_phy_create(priv, idx, &priv->phys[idx]);
2589 		if (err)
2590 			return err;
2591 	}
2592 
2593 	/* Power down all CMUs by default */
2594 	sparx5_serdes_cmu_power_off(priv);
2595 
2596 	provider = devm_of_phy_provider_register(priv->dev, sparx5_serdes_xlate);
2597 
2598 	return PTR_ERR_OR_ZERO(provider);
2599 }
2600 
2601 static const struct of_device_id sparx5_serdes_match[] = {
2602 	{ .compatible = "microchip,sparx5-serdes" },
2603 	{ }
2604 };
2605 MODULE_DEVICE_TABLE(of, sparx5_serdes_match);
2606 
2607 static struct platform_driver sparx5_serdes_driver = {
2608 	.probe = sparx5_serdes_probe,
2609 	.driver = {
2610 		.name = "sparx5-serdes",
2611 		.of_match_table = sparx5_serdes_match,
2612 	},
2613 };
2614 
2615 module_platform_driver(sparx5_serdes_driver);
2616 
2617 MODULE_DESCRIPTION("Microchip Sparx5 switch serdes driver");
2618 MODULE_AUTHOR("Steen Hegelund <steen.hegelund@microchip.com>");
2619 MODULE_LICENSE("GPL v2");
2620