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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / misc / cardreader / rts5249.c
blobdb936e4d6e5638d5c6fd016d2e05da07261e367b
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Driver for Realtek PCI-Express card reader
3 *
4 * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
5 *
6 * Author:
7 * Wei WANG <wei_wang@realsil.com.cn>
8 */
9
10 #include <linux/module.h>
11 #include <linux/delay.h>
12 #include <linux/rtsx_pci.h>
13
14 #include "rtsx_pcr.h"
15
16 static u8 rts5249_get_ic_version(struct rtsx_pcr *pcr)
17 {
18 u8 val;
19
20 rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
21 return val & 0x0F;
22 }
23
24 static void rts5249_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
25 {
26 u8 driving_3v3[4][3] = {
27 {0x11, 0x11, 0x18},
28 {0x55, 0x55, 0x5C},
29 {0xFF, 0xFF, 0xFF},
30 {0x96, 0x96, 0x96},
31 };
32 u8 driving_1v8[4][3] = {
33 {0xC4, 0xC4, 0xC4},
34 {0x3C, 0x3C, 0x3C},
35 {0xFE, 0xFE, 0xFE},
36 {0xB3, 0xB3, 0xB3},
37 };
38 u8 (*driving)[3], drive_sel;
39
40 if (voltage == OUTPUT_3V3) {
41 driving = driving_3v3;
42 drive_sel = pcr->sd30_drive_sel_3v3;
43 } else {
44 driving = driving_1v8;
45 drive_sel = pcr->sd30_drive_sel_1v8;
46 }
47
48 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
49 0xFF, driving[drive_sel][0]);
50 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
51 0xFF, driving[drive_sel][1]);
52 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
53 0xFF, driving[drive_sel][2]);
54 }
55
56 static void rtsx_base_fetch_vendor_settings(struct rtsx_pcr *pcr)
57 {
58 u32 reg;
59
60 rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg);
61 pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
62
63 if (!rtsx_vendor_setting_valid(reg)) {
64 pcr_dbg(pcr, "skip fetch vendor setting\n");
65 return;
66 }
67
68 pcr->aspm_en = rtsx_reg_to_aspm(reg);
69 pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
70 pcr->card_drive_sel &= 0x3F;
71 pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg);
72
73 rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, &reg);
74 pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
75 pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
76 if (rtsx_reg_check_reverse_socket(reg))
77 pcr->flags |= PCR_REVERSE_SOCKET;
78 }
79
80 static void rtsx_base_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
81 {
82 /* Set relink_time to 0 */
83 rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
84 rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
85 rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
86
87 if (pm_state == HOST_ENTER_S3)
88 rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3,
89 D3_DELINK_MODE_EN, D3_DELINK_MODE_EN);
90
91 rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
92 }
93
94 static void rts5249_init_from_cfg(struct rtsx_pcr *pcr)
95 {
96 struct rtsx_cr_option *option = &(pcr->option);
97 u32 lval;
98
99 if (CHK_PCI_PID(pcr, PID_524A))
100 rtsx_pci_read_config_dword(pcr,
101 PCR_ASPM_SETTING_REG1, &lval);
102 else
103 rtsx_pci_read_config_dword(pcr,
104 PCR_ASPM_SETTING_REG2, &lval);
105
106 if (lval & ASPM_L1_1_EN_MASK)
107 rtsx_set_dev_flag(pcr, ASPM_L1_1_EN);
108
109 if (lval & ASPM_L1_2_EN_MASK)
110 rtsx_set_dev_flag(pcr, ASPM_L1_2_EN);
111
112 if (lval & PM_L1_1_EN_MASK)
113 rtsx_set_dev_flag(pcr, PM_L1_1_EN);
114
115 if (lval & PM_L1_2_EN_MASK)
116 rtsx_set_dev_flag(pcr, PM_L1_2_EN);
117
118 if (option->ltr_en) {
119 u16 val;
120
121 pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &val);
122 if (val & PCI_EXP_DEVCTL2_LTR_EN) {
123 option->ltr_enabled = true;
124 option->ltr_active = true;
125 rtsx_set_ltr_latency(pcr, option->ltr_active_latency);
126 } else {
127 option->ltr_enabled = false;
128 }
129 }
130 }
131
132 static int rts5249_init_from_hw(struct rtsx_pcr *pcr)
133 {
134 struct rtsx_cr_option *option = &(pcr->option);
135
136 if (rtsx_check_dev_flag(pcr, ASPM_L1_1_EN | ASPM_L1_2_EN
137 | PM_L1_1_EN | PM_L1_2_EN))
138 option->force_clkreq_0 = false;
139 else
140 option->force_clkreq_0 = true;
141
142 return 0;
143 }
144
145 static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
146 {
147 struct rtsx_cr_option *option = &(pcr->option);
148
149 rts5249_init_from_cfg(pcr);
150 rts5249_init_from_hw(pcr);
151
152 rtsx_pci_init_cmd(pcr);
153
154 /* Rest L1SUB Config */
155 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG3, 0xFF, 0x00);
156 /* Configure GPIO as output */
157 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
158 /* Reset ASPM state to default value */
159 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0);
160 /* Switch LDO3318 source from DV33 to card_3v3 */
161 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
162 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
163 /* LED shine disabled, set initial shine cycle period */
164 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
165 /* Configure driving */
166 rts5249_fill_driving(pcr, OUTPUT_3V3);
167 if (pcr->flags & PCR_REVERSE_SOCKET)
168 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0xB0);
169 else
170 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0x80);
171
172 /*
173 * If u_force_clkreq_0 is enabled, CLKREQ# PIN will be forced
174 * to drive low, and we forcibly request clock.
175 */
176 if (option->force_clkreq_0)
177 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG,
178 FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_LOW);
179 else
180 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG,
181 FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
182
183 return rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
184 }
185
186 static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
187 {
188 int err;
189
190 err = rtsx_pci_write_register(pcr, PM_CTRL3, D3_DELINK_MODE_EN, 0x00);
191 if (err < 0)
192 return err;
193
194 err = rtsx_pci_write_phy_register(pcr, PHY_REV,
195 PHY_REV_RESV | PHY_REV_RXIDLE_LATCHED |
196 PHY_REV_P1_EN | PHY_REV_RXIDLE_EN |
197 PHY_REV_CLKREQ_TX_EN | PHY_REV_RX_PWST |
198 PHY_REV_CLKREQ_DT_1_0 | PHY_REV_STOP_CLKRD |
199 PHY_REV_STOP_CLKWR);
200 if (err < 0)
201 return err;
202
203 msleep(1);
204
205 err = rtsx_pci_write_phy_register(pcr, PHY_BPCR,
206 PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
207 PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);
208 if (err < 0)
209 return err;
210
211 err = rtsx_pci_write_phy_register(pcr, PHY_PCR,
212 PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
213 PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
214 PHY_PCR_RSSI_EN | PHY_PCR_RX10K);
215 if (err < 0)
216 return err;
217
218 err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
219 PHY_RCR2_EMPHASE_EN | PHY_RCR2_NADJR |
220 PHY_RCR2_CDR_SR_2 | PHY_RCR2_FREQSEL_12 |
221 PHY_RCR2_CDR_SC_12P | PHY_RCR2_CALIB_LATE);
222 if (err < 0)
223 return err;
224
225 err = rtsx_pci_write_phy_register(pcr, PHY_FLD4,
226 PHY_FLD4_FLDEN_SEL | PHY_FLD4_REQ_REF |
227 PHY_FLD4_RXAMP_OFF | PHY_FLD4_REQ_ADDA |
228 PHY_FLD4_BER_COUNT | PHY_FLD4_BER_TIMER |
229 PHY_FLD4_BER_CHK_EN);
230 if (err < 0)
231 return err;
232 err = rtsx_pci_write_phy_register(pcr, PHY_RDR,
233 PHY_RDR_RXDSEL_1_9 | PHY_SSC_AUTO_PWD);
234 if (err < 0)
235 return err;
236 err = rtsx_pci_write_phy_register(pcr, PHY_RCR1,
237 PHY_RCR1_ADP_TIME_4 | PHY_RCR1_VCO_COARSE);
238 if (err < 0)
239 return err;
240 err = rtsx_pci_write_phy_register(pcr, PHY_FLD3,
241 PHY_FLD3_TIMER_4 | PHY_FLD3_TIMER_6 |
242 PHY_FLD3_RXDELINK);
243 if (err < 0)
244 return err;
245
246 return rtsx_pci_write_phy_register(pcr, PHY_TUNE,
247 PHY_TUNE_TUNEREF_1_0 | PHY_TUNE_VBGSEL_1252 |
248 PHY_TUNE_SDBUS_33 | PHY_TUNE_TUNED18 |
249 PHY_TUNE_TUNED12 | PHY_TUNE_TUNEA12);
250 }
251
252 static int rtsx_base_turn_on_led(struct rtsx_pcr *pcr)
253 {
254 return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
255 }
256
257 static int rtsx_base_turn_off_led(struct rtsx_pcr *pcr)
258 {
259 return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
260 }
261
262 static int rtsx_base_enable_auto_blink(struct rtsx_pcr *pcr)
263 {
264 return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
265 }
266
267 static int rtsx_base_disable_auto_blink(struct rtsx_pcr *pcr)
268 {
269 return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
270 }
271
272 static int rtsx_base_card_power_on(struct rtsx_pcr *pcr, int card)
273 {
274 int err;
275 struct rtsx_cr_option *option = &pcr->option;
276
277 if (option->ocp_en)
278 rtsx_pci_enable_ocp(pcr);
279
280 rtsx_pci_init_cmd(pcr);
281 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
282 SD_POWER_MASK, SD_VCC_PARTIAL_POWER_ON);
283 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
284 LDO3318_PWR_MASK, 0x02);
285 err = rtsx_pci_send_cmd(pcr, 100);
286 if (err < 0)
287 return err;
288
289 msleep(5);
290
291 rtsx_pci_init_cmd(pcr);
292 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
293 SD_POWER_MASK, SD_VCC_POWER_ON);
294 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
295 LDO3318_PWR_MASK, 0x06);
296 return rtsx_pci_send_cmd(pcr, 100);
297 }
298
299 static int rtsx_base_card_power_off(struct rtsx_pcr *pcr, int card)
300 {
301 struct rtsx_cr_option *option = &pcr->option;
302
303 if (option->ocp_en)
304 rtsx_pci_disable_ocp(pcr);
305
306 rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK, SD_POWER_OFF);
307
308 rtsx_pci_write_register(pcr, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0x00);
309 return 0;
310 }
311
312 static int rtsx_base_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
313 {
314 int err;
315 u16 append;
316
317 switch (voltage) {
318 case OUTPUT_3V3:
319 err = rtsx_pci_update_phy(pcr, PHY_TUNE, PHY_TUNE_VOLTAGE_MASK,
320 PHY_TUNE_VOLTAGE_3V3);
321 if (err < 0)
322 return err;
323 break;
324 case OUTPUT_1V8:
325 append = PHY_TUNE_D18_1V8;
326 if (CHK_PCI_PID(pcr, 0x5249)) {
327 err = rtsx_pci_update_phy(pcr, PHY_BACR,
328 PHY_BACR_BASIC_MASK, 0);
329 if (err < 0)
330 return err;
331 append = PHY_TUNE_D18_1V7;
332 }
333
334 err = rtsx_pci_update_phy(pcr, PHY_TUNE, PHY_TUNE_VOLTAGE_MASK,
335 append);
336 if (err < 0)
337 return err;
338 break;
339 default:
340 pcr_dbg(pcr, "unknown output voltage %d\n", voltage);
341 return -EINVAL;
342 }
343
344 /* set pad drive */
345 rtsx_pci_init_cmd(pcr);
346 rts5249_fill_driving(pcr, voltage);
347 return rtsx_pci_send_cmd(pcr, 100);
348 }
349
350 static void rts5249_set_aspm(struct rtsx_pcr *pcr, bool enable)
351 {
352 struct rtsx_cr_option *option = &pcr->option;
353 u8 val = 0;
354
355 if (pcr->aspm_enabled == enable)
356 return;
357
358 if (option->dev_aspm_mode == DEV_ASPM_DYNAMIC) {
359 if (enable)
360 val = pcr->aspm_en;
361 rtsx_pci_update_cfg_byte(pcr,
362 pcr->pcie_cap + PCI_EXP_LNKCTL,
363 ASPM_MASK_NEG, val);
364 } else if (option->dev_aspm_mode == DEV_ASPM_BACKDOOR) {
365 u8 mask = FORCE_ASPM_VAL_MASK | FORCE_ASPM_CTL0;
366
367 if (!enable)
368 val = FORCE_ASPM_CTL0;
369 rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, mask, val);
370 }
371
372 pcr->aspm_enabled = enable;
373 }
374
375 static const struct pcr_ops rts5249_pcr_ops = {
376 .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
377 .extra_init_hw = rts5249_extra_init_hw,
378 .optimize_phy = rts5249_optimize_phy,
379 .turn_on_led = rtsx_base_turn_on_led,
380 .turn_off_led = rtsx_base_turn_off_led,
381 .enable_auto_blink = rtsx_base_enable_auto_blink,
382 .disable_auto_blink = rtsx_base_disable_auto_blink,
383 .card_power_on = rtsx_base_card_power_on,
384 .card_power_off = rtsx_base_card_power_off,
385 .switch_output_voltage = rtsx_base_switch_output_voltage,
386 .force_power_down = rtsx_base_force_power_down,
387 .set_aspm = rts5249_set_aspm,
388 };
389
390 /* SD Pull Control Enable:
391 * SD_DAT[3:0] ==> pull up
392 * SD_CD ==> pull up
393 * SD_WP ==> pull up
394 * SD_CMD ==> pull up
395 * SD_CLK ==> pull down
396 */
397 static const u32 rts5249_sd_pull_ctl_enable_tbl[] = {
398 RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
399 RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
400 RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
401 RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA),
402 0,
403 };
404
405 /* SD Pull Control Disable:
406 * SD_DAT[3:0] ==> pull down
407 * SD_CD ==> pull up
408 * SD_WP ==> pull down
409 * SD_CMD ==> pull down
410 * SD_CLK ==> pull down
411 */
412 static const u32 rts5249_sd_pull_ctl_disable_tbl[] = {
413 RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
414 RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
415 RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
416 RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
417 0,
418 };
419
420 /* MS Pull Control Enable:
421 * MS CD ==> pull up
422 * others ==> pull down
423 */
424 static const u32 rts5249_ms_pull_ctl_enable_tbl[] = {
425 RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
426 RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
427 RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
428 0,
429 };
430
431 /* MS Pull Control Disable:
432 * MS CD ==> pull up
433 * others ==> pull down
434 */
435 static const u32 rts5249_ms_pull_ctl_disable_tbl[] = {
436 RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
437 RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
438 RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
439 0,
440 };
441
442 void rts5249_init_params(struct rtsx_pcr *pcr)
443 {
444 struct rtsx_cr_option *option = &(pcr->option);
445
446 pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
447 pcr->num_slots = 2;
448 pcr->ops = &rts5249_pcr_ops;
449
450 pcr->flags = 0;
451 pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
452 pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
453 pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
454 pcr->aspm_en = ASPM_L1_EN;
455 pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
456 pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
457
458 pcr->ic_version = rts5249_get_ic_version(pcr);
459 pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl;
460 pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl;
461 pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl;
462 pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl;
463
464 pcr->reg_pm_ctrl3 = PM_CTRL3;
465
466 option->dev_flags = (LTR_L1SS_PWR_GATE_CHECK_CARD_EN
467 | LTR_L1SS_PWR_GATE_EN);
468 option->ltr_en = true;
469
470 /* Init latency of active, idle, L1OFF to 60us, 300us, 3ms */
471 option->ltr_active_latency = LTR_ACTIVE_LATENCY_DEF;
472 option->ltr_idle_latency = LTR_IDLE_LATENCY_DEF;
473 option->ltr_l1off_latency = LTR_L1OFF_LATENCY_DEF;
474 option->dev_aspm_mode = DEV_ASPM_DYNAMIC;
475 option->l1_snooze_delay = L1_SNOOZE_DELAY_DEF;
476 option->ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5249_DEF;
477 option->ltr_l1off_snooze_sspwrgate =
478 LTR_L1OFF_SNOOZE_SSPWRGATE_5249_DEF;
479 }
480
481 static int rts524a_write_phy(struct rtsx_pcr *pcr, u8 addr, u16 val)
482 {
483 addr = addr & 0x80 ? (addr & 0x7F) | 0x40 : addr;
484
485 return __rtsx_pci_write_phy_register(pcr, addr, val);
486 }
487
488 static int rts524a_read_phy(struct rtsx_pcr *pcr, u8 addr, u16 *val)
489 {
490 addr = addr & 0x80 ? (addr & 0x7F) | 0x40 : addr;
491
492 return __rtsx_pci_read_phy_register(pcr, addr, val);
493 }
494
495 static int rts524a_optimize_phy(struct rtsx_pcr *pcr)
496 {
497 int err;
498
499 err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
500 D3_DELINK_MODE_EN, 0x00);
501 if (err < 0)
502 return err;
503
504 rtsx_pci_write_phy_register(pcr, PHY_PCR,
505 PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
506 PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 | PHY_PCR_RSSI_EN);
507 rtsx_pci_write_phy_register(pcr, PHY_SSCCR3,
508 PHY_SSCCR3_STEP_IN | PHY_SSCCR3_CHECK_DELAY);
509
510 if (is_version(pcr, 0x524A, IC_VER_A)) {
511 rtsx_pci_write_phy_register(pcr, PHY_SSCCR3,
512 PHY_SSCCR3_STEP_IN | PHY_SSCCR3_CHECK_DELAY);
513 rtsx_pci_write_phy_register(pcr, PHY_SSCCR2,
514 PHY_SSCCR2_PLL_NCODE | PHY_SSCCR2_TIME0 |
515 PHY_SSCCR2_TIME2_WIDTH);
516 rtsx_pci_write_phy_register(pcr, PHY_ANA1A,
517 PHY_ANA1A_TXR_LOOPBACK | PHY_ANA1A_RXT_BIST |
518 PHY_ANA1A_TXR_BIST | PHY_ANA1A_REV);
519 rtsx_pci_write_phy_register(pcr, PHY_ANA1D,
520 PHY_ANA1D_DEBUG_ADDR);
521 rtsx_pci_write_phy_register(pcr, PHY_DIG1E,
522 PHY_DIG1E_REV | PHY_DIG1E_D0_X_D1 |
523 PHY_DIG1E_RX_ON_HOST | PHY_DIG1E_RCLK_REF_HOST |
524 PHY_DIG1E_RCLK_TX_EN_KEEP |
525 PHY_DIG1E_RCLK_TX_TERM_KEEP |
526 PHY_DIG1E_RCLK_RX_EIDLE_ON | PHY_DIG1E_TX_TERM_KEEP |
527 PHY_DIG1E_RX_TERM_KEEP | PHY_DIG1E_TX_EN_KEEP |
528 PHY_DIG1E_RX_EN_KEEP);
529 }
530
531 rtsx_pci_write_phy_register(pcr, PHY_ANA08,
532 PHY_ANA08_RX_EQ_DCGAIN | PHY_ANA08_SEL_RX_EN |
533 PHY_ANA08_RX_EQ_VAL | PHY_ANA08_SCP | PHY_ANA08_SEL_IPI);
534
535 return 0;
536 }
537
538 static int rts524a_extra_init_hw(struct rtsx_pcr *pcr)
539 {
540 rts5249_extra_init_hw(pcr);
541
542 rtsx_pci_write_register(pcr, FUNC_FORCE_CTL,
543 FORCE_ASPM_L1_EN, FORCE_ASPM_L1_EN);
544 rtsx_pci_write_register(pcr, PM_EVENT_DEBUG, PME_DEBUG_0, PME_DEBUG_0);
545 rtsx_pci_write_register(pcr, LDO_VCC_CFG1, LDO_VCC_LMT_EN,
546 LDO_VCC_LMT_EN);
547 rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
548 if (is_version(pcr, 0x524A, IC_VER_A)) {
549 rtsx_pci_write_register(pcr, LDO_DV18_CFG,
550 LDO_DV18_SR_MASK, LDO_DV18_SR_DF);
551 rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
552 LDO_VCC_REF_TUNE_MASK, LDO_VCC_REF_1V2);
553 rtsx_pci_write_register(pcr, LDO_VIO_CFG,
554 LDO_VIO_REF_TUNE_MASK, LDO_VIO_REF_1V2);
555 rtsx_pci_write_register(pcr, LDO_VIO_CFG,
556 LDO_VIO_SR_MASK, LDO_VIO_SR_DF);
557 rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
558 LDO_REF12_TUNE_MASK, LDO_REF12_TUNE_DF);
559 rtsx_pci_write_register(pcr, SD40_LDO_CTL1,
560 SD40_VIO_TUNE_MASK, SD40_VIO_TUNE_1V7);
561 }
562
563 return 0;
564 }
565
566 static void rts5250_set_l1off_cfg_sub_d0(struct rtsx_pcr *pcr, int active)
567 {
568 struct rtsx_cr_option *option = &(pcr->option);
569
570 u32 interrupt = rtsx_pci_readl(pcr, RTSX_BIPR);
571 int card_exist = (interrupt & SD_EXIST) | (interrupt & MS_EXIST);
572 int aspm_L1_1, aspm_L1_2;
573 u8 val = 0;
574
575 aspm_L1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN);
576 aspm_L1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN);
577
578 if (active) {
579 /* Run, latency: 60us */
580 if (aspm_L1_1)
581 val = option->ltr_l1off_snooze_sspwrgate;
582 } else {
583 /* L1off, latency: 300us */
584 if (aspm_L1_2)
585 val = option->ltr_l1off_sspwrgate;
586 }
587
588 if (aspm_L1_1 || aspm_L1_2) {
589 if (rtsx_check_dev_flag(pcr,
590 LTR_L1SS_PWR_GATE_CHECK_CARD_EN)) {
591 if (card_exist)
592 val &= ~L1OFF_MBIAS2_EN_5250;
593 else
594 val |= L1OFF_MBIAS2_EN_5250;
595 }
596 }
597 rtsx_set_l1off_sub(pcr, val);
598 }
599
600 static const struct pcr_ops rts524a_pcr_ops = {
601 .write_phy = rts524a_write_phy,
602 .read_phy = rts524a_read_phy,
603 .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
604 .extra_init_hw = rts524a_extra_init_hw,
605 .optimize_phy = rts524a_optimize_phy,
606 .turn_on_led = rtsx_base_turn_on_led,
607 .turn_off_led = rtsx_base_turn_off_led,
608 .enable_auto_blink = rtsx_base_enable_auto_blink,
609 .disable_auto_blink = rtsx_base_disable_auto_blink,
610 .card_power_on = rtsx_base_card_power_on,
611 .card_power_off = rtsx_base_card_power_off,
612 .switch_output_voltage = rtsx_base_switch_output_voltage,
613 .force_power_down = rtsx_base_force_power_down,
614 .set_l1off_cfg_sub_d0 = rts5250_set_l1off_cfg_sub_d0,
615 .set_aspm = rts5249_set_aspm,
616 };
617
618 void rts524a_init_params(struct rtsx_pcr *pcr)
619 {
620 rts5249_init_params(pcr);
621 pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
622 pcr->option.ltr_l1off_snooze_sspwrgate =
623 LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
624
625 pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
626 pcr->ops = &rts524a_pcr_ops;
627
628 pcr->option.ocp_en = 1;
629 if (pcr->option.ocp_en)
630 pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
631 pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
632 pcr->option.sd_800mA_ocp_thd = RTS524A_OCP_THD_800;
633
634 }
635
636 static int rts525a_card_power_on(struct rtsx_pcr *pcr, int card)
637 {
638 rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
639 LDO_VCC_TUNE_MASK, LDO_VCC_3V3);
640 return rtsx_base_card_power_on(pcr, card);
641 }
642
643 static int rts525a_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
644 {
645 switch (voltage) {
646 case OUTPUT_3V3:
647 rtsx_pci_write_register(pcr, LDO_CONFIG2,
648 LDO_D3318_MASK, LDO_D3318_33V);
649 rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8, 0);
650 break;
651 case OUTPUT_1V8:
652 rtsx_pci_write_register(pcr, LDO_CONFIG2,
653 LDO_D3318_MASK, LDO_D3318_18V);
654 rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8,
655 SD_IO_USING_1V8);
656 break;
657 default:
658 return -EINVAL;
659 }
660
661 rtsx_pci_init_cmd(pcr);
662 rts5249_fill_driving(pcr, voltage);
663 return rtsx_pci_send_cmd(pcr, 100);
664 }
665
666 static int rts525a_optimize_phy(struct rtsx_pcr *pcr)
667 {
668 int err;
669
670 err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
671 D3_DELINK_MODE_EN, 0x00);
672 if (err < 0)
673 return err;
674
675 rtsx_pci_write_phy_register(pcr, _PHY_FLD0,
676 _PHY_FLD0_CLK_REQ_20C | _PHY_FLD0_RX_IDLE_EN |
677 _PHY_FLD0_BIT_ERR_RSTN | _PHY_FLD0_BER_COUNT |
678 _PHY_FLD0_BER_TIMER | _PHY_FLD0_CHECK_EN);
679
680 rtsx_pci_write_phy_register(pcr, _PHY_ANA03,
681 _PHY_ANA03_TIMER_MAX | _PHY_ANA03_OOBS_DEB_EN |
682 _PHY_CMU_DEBUG_EN);
683
684 if (is_version(pcr, 0x525A, IC_VER_A))
685 rtsx_pci_write_phy_register(pcr, _PHY_REV0,
686 _PHY_REV0_FILTER_OUT | _PHY_REV0_CDR_BYPASS_PFD |
687 _PHY_REV0_CDR_RX_IDLE_BYPASS);
688
689 return 0;
690 }
691
692 static int rts525a_extra_init_hw(struct rtsx_pcr *pcr)
693 {
694 rts5249_extra_init_hw(pcr);
695
696 rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
697 if (is_version(pcr, 0x525A, IC_VER_A)) {
698 rtsx_pci_write_register(pcr, L1SUB_CONFIG2,
699 L1SUB_AUTO_CFG, L1SUB_AUTO_CFG);
700 rtsx_pci_write_register(pcr, RREF_CFG,
701 RREF_VBGSEL_MASK, RREF_VBGSEL_1V25);
702 rtsx_pci_write_register(pcr, LDO_VIO_CFG,
703 LDO_VIO_TUNE_MASK, LDO_VIO_1V7);
704 rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
705 LDO_D12_TUNE_MASK, LDO_D12_TUNE_DF);
706 rtsx_pci_write_register(pcr, LDO_AV12S_CFG,
707 LDO_AV12S_TUNE_MASK, LDO_AV12S_TUNE_DF);
708 rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
709 LDO_VCC_LMTVTH_MASK, LDO_VCC_LMTVTH_2A);
710 rtsx_pci_write_register(pcr, OOBS_CONFIG,
711 OOBS_AUTOK_DIS | OOBS_VAL_MASK, 0x89);
712 }
713
714 return 0;
715 }
716
717 static const struct pcr_ops rts525a_pcr_ops = {
718 .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
719 .extra_init_hw = rts525a_extra_init_hw,
720 .optimize_phy = rts525a_optimize_phy,
721 .turn_on_led = rtsx_base_turn_on_led,
722 .turn_off_led = rtsx_base_turn_off_led,
723 .enable_auto_blink = rtsx_base_enable_auto_blink,
724 .disable_auto_blink = rtsx_base_disable_auto_blink,
725 .card_power_on = rts525a_card_power_on,
726 .card_power_off = rtsx_base_card_power_off,
727 .switch_output_voltage = rts525a_switch_output_voltage,
728 .force_power_down = rtsx_base_force_power_down,
729 .set_l1off_cfg_sub_d0 = rts5250_set_l1off_cfg_sub_d0,
730 .set_aspm = rts5249_set_aspm,
731 };
732
733 void rts525a_init_params(struct rtsx_pcr *pcr)
734 {
735 rts5249_init_params(pcr);
736 pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
737 pcr->option.ltr_l1off_snooze_sspwrgate =
738 LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
739
740 pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
741 pcr->ops = &rts525a_pcr_ops;
742
743 pcr->option.ocp_en = 1;
744 if (pcr->option.ocp_en)
745 pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
746 pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
747 pcr->option.sd_800mA_ocp_thd = RTS525A_OCP_THD_800;
748 }
Linux with added FPC-III support