sparx5_serdes.c 80 KB

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