1 /* Driver for Realtek PCI-Express card reader
3 * Copyright(c) 2016-2017 Realtek Semiconductor Corp. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2, or (at your option) any
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, see <http://www.gnu.org/licenses/>.
19 * Steven FENG <steven_feng@realsil.com.cn>
20 * Rui FENG <rui_feng@realsil.com.cn>
21 * Wei WANG <wei_wang@realsil.com.cn>
24 #include <linux/module.h>
25 #include <linux/delay.h>
26 #include <linux/rtsx_pci.h>
31 static u8 rts5260_get_ic_version(struct rtsx_pcr *pcr)
35 rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
36 return val & IC_VERSION_MASK;
39 static void rts5260_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
41 u8 driving_3v3[6][3] = {
49 u8 driving_1v8[6][3] = {
57 u8 (*driving)[3], drive_sel;
59 if (voltage == OUTPUT_3V3) {
60 driving = driving_3v3;
61 drive_sel = pcr->sd30_drive_sel_3v3;
63 driving = driving_1v8;
64 drive_sel = pcr->sd30_drive_sel_1v8;
67 rtsx_pci_write_register(pcr, SD30_CLK_DRIVE_SEL,
68 0xFF, driving[drive_sel][0]);
70 rtsx_pci_write_register(pcr, SD30_CMD_DRIVE_SEL,
71 0xFF, driving[drive_sel][1]);
73 rtsx_pci_write_register(pcr, SD30_CMD_DRIVE_SEL,
74 0xFF, driving[drive_sel][2]);
77 static void rtsx_base_fetch_vendor_settings(struct rtsx_pcr *pcr)
81 rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, ®);
82 pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
84 if (!rtsx_vendor_setting_valid(reg)) {
85 pcr_dbg(pcr, "skip fetch vendor setting\n");
89 pcr->aspm_en = rtsx_reg_to_aspm(reg);
90 pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
91 pcr->card_drive_sel &= 0x3F;
92 pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg);
94 rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, ®);
95 pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
96 pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
97 if (rtsx_reg_check_reverse_socket(reg))
98 pcr->flags |= PCR_REVERSE_SOCKET;
101 static void rtsx_base_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
103 /* Set relink_time to 0 */
104 rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, MASK_8_BIT_DEF, 0);
105 rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, MASK_8_BIT_DEF, 0);
106 rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3,
107 RELINK_TIME_MASK, 0);
109 if (pm_state == HOST_ENTER_S3)
110 rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3,
111 D3_DELINK_MODE_EN, D3_DELINK_MODE_EN);
113 rtsx_pci_write_register(pcr, FPDCTL, ALL_POWER_DOWN, ALL_POWER_DOWN);
116 static int rtsx_base_enable_auto_blink(struct rtsx_pcr *pcr)
118 return rtsx_pci_write_register(pcr, OLT_LED_CTL,
119 LED_SHINE_MASK, LED_SHINE_EN);
122 static int rtsx_base_disable_auto_blink(struct rtsx_pcr *pcr)
124 return rtsx_pci_write_register(pcr, OLT_LED_CTL,
125 LED_SHINE_MASK, LED_SHINE_DISABLE);
128 static int rts5260_turn_on_led(struct rtsx_pcr *pcr)
130 return rtsx_pci_write_register(pcr, RTS5260_REG_GPIO_CTL0,
131 RTS5260_REG_GPIO_MASK, RTS5260_REG_GPIO_ON);
134 static int rts5260_turn_off_led(struct rtsx_pcr *pcr)
136 return rtsx_pci_write_register(pcr, RTS5260_REG_GPIO_CTL0,
137 RTS5260_REG_GPIO_MASK, RTS5260_REG_GPIO_OFF);
140 /* SD Pull Control Enable:
141 * SD_DAT[3:0] ==> pull up
145 * SD_CLK ==> pull down
147 static const u32 rts5260_sd_pull_ctl_enable_tbl[] = {
148 RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
149 RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
150 RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
151 RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA),
155 /* SD Pull Control Disable:
156 * SD_DAT[3:0] ==> pull down
158 * SD_WP ==> pull down
159 * SD_CMD ==> pull down
160 * SD_CLK ==> pull down
162 static const u32 rts5260_sd_pull_ctl_disable_tbl[] = {
163 RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
164 RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
165 RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
166 RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
170 /* MS Pull Control Enable:
172 * others ==> pull down
174 static const u32 rts5260_ms_pull_ctl_enable_tbl[] = {
175 RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
176 RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
177 RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
181 /* MS Pull Control Disable:
183 * others ==> pull down
185 static const u32 rts5260_ms_pull_ctl_disable_tbl[] = {
186 RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
187 RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
188 RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
192 static int sd_set_sample_push_timing_sd30(struct rtsx_pcr *pcr)
194 rtsx_pci_write_register(pcr, SD_CFG1, SD_MODE_SELECT_MASK
195 | SD_ASYNC_FIFO_NOT_RST, SD_30_MODE | SD_ASYNC_FIFO_NOT_RST);
196 rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, CLK_LOW_FREQ);
197 rtsx_pci_write_register(pcr, CARD_CLK_SOURCE, 0xFF,
198 CRC_VAR_CLK0 | SD30_FIX_CLK | SAMPLE_VAR_CLK1);
199 rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, 0);
204 static int rts5260_card_power_on(struct rtsx_pcr *pcr, int card)
207 struct rtsx_cr_option *option = &pcr->option;
210 rtsx_pci_enable_ocp(pcr);
213 rtsx_pci_write_register(pcr, LDO_CONFIG2, DV331812_VDD1, DV331812_VDD1);
214 rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
215 RTS5260_DVCC_TUNE_MASK, RTS5260_DVCC_33);
217 rtsx_pci_write_register(pcr, LDO_VCC_CFG1, LDO_POW_SDVDD1_MASK,
220 rtsx_pci_write_register(pcr, LDO_CONFIG2,
221 DV331812_POWERON, DV331812_POWERON);
224 if (pcr->extra_caps & EXTRA_CAPS_SD_SDR50 ||
225 pcr->extra_caps & EXTRA_CAPS_SD_SDR104)
226 sd_set_sample_push_timing_sd30(pcr);
228 /* Initialize SD_CFG1 register */
229 rtsx_pci_write_register(pcr, SD_CFG1, 0xFF,
230 SD_CLK_DIVIDE_128 | SD_20_MODE);
232 rtsx_pci_write_register(pcr, SD_SAMPLE_POINT_CTL,
233 0xFF, SD20_RX_POS_EDGE);
234 rtsx_pci_write_register(pcr, SD_PUSH_POINT_CTL, 0xFF, 0);
235 rtsx_pci_write_register(pcr, CARD_STOP, SD_STOP | SD_CLR_ERR,
236 SD_STOP | SD_CLR_ERR);
238 /* Reset SD_CFG3 register */
239 rtsx_pci_write_register(pcr, SD_CFG3, SD30_CLK_END_EN, 0);
240 rtsx_pci_write_register(pcr, REG_SD_STOP_SDCLK_CFG,
241 SD30_CLK_STOP_CFG_EN | SD30_CLK_STOP_CFG1 |
242 SD30_CLK_STOP_CFG0, 0);
244 rtsx_pci_write_register(pcr, REG_PRE_RW_MODE, EN_INFINITE_MODE, 0);
249 static int rts5260_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
253 rtsx_pci_write_register(pcr, LDO_CONFIG2,
254 DV331812_VDD1, DV331812_VDD1);
255 rtsx_pci_write_register(pcr, LDO_DV18_CFG,
256 DV331812_MASK, DV331812_33);
257 rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8, 0);
260 rtsx_pci_write_register(pcr, LDO_CONFIG2,
261 DV331812_VDD1, DV331812_VDD1);
262 rtsx_pci_write_register(pcr, LDO_DV18_CFG,
263 DV331812_MASK, DV331812_17);
264 rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8,
272 rts5260_fill_driving(pcr, voltage);
277 static void rts5260_stop_cmd(struct rtsx_pcr *pcr)
279 rtsx_pci_writel(pcr, RTSX_HCBCTLR, STOP_CMD);
280 rtsx_pci_writel(pcr, RTSX_HDBCTLR, STOP_DMA);
281 rtsx_pci_write_register(pcr, RTS5260_DMA_RST_CTL_0,
282 RTS5260_DMA_RST | RTS5260_ADMA3_RST,
283 RTS5260_DMA_RST | RTS5260_ADMA3_RST);
284 rtsx_pci_write_register(pcr, RBCTL, RB_FLUSH, RB_FLUSH);
287 static void rts5260_card_before_power_off(struct rtsx_pcr *pcr)
289 rts5260_stop_cmd(pcr);
290 rts5260_switch_output_voltage(pcr, OUTPUT_3V3);
294 static int rts5260_card_power_off(struct rtsx_pcr *pcr, int card)
298 rts5260_card_before_power_off(pcr);
299 err = rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
300 LDO_POW_SDVDD1_MASK, LDO_POW_SDVDD1_OFF);
301 err = rtsx_pci_write_register(pcr, LDO_CONFIG2,
302 DV331812_POWERON, DV331812_POWEROFF);
303 if (pcr->option.ocp_en)
304 rtsx_pci_disable_ocp(pcr);
309 static void rts5260_init_ocp(struct rtsx_pcr *pcr)
311 struct rtsx_cr_option *option = &pcr->option;
313 if (option->ocp_en) {
317 rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
318 RTS5260_DVCC_OCP_THD_MASK,
319 option->sd_800mA_ocp_thd);
321 rtsx_pci_write_register(pcr, RTS5260_DV331812_CFG,
322 RTS5260_DV331812_OCP_THD_MASK,
323 RTS5260_DV331812_OCP_THD_270);
325 mask = SD_OCP_GLITCH_MASK;
326 val = pcr->hw_param.ocp_glitch;
327 rtsx_pci_write_register(pcr, REG_OCPGLITCH, mask, val);
328 rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
329 RTS5260_DVCC_OCP_EN |
330 RTS5260_DVCC_OCP_CL_EN,
331 RTS5260_DVCC_OCP_EN |
332 RTS5260_DVCC_OCP_CL_EN);
334 rtsx_pci_enable_ocp(pcr);
336 rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
337 RTS5260_DVCC_OCP_EN |
338 RTS5260_DVCC_OCP_CL_EN, 0);
342 static void rts5260_enable_ocp(struct rtsx_pcr *pcr)
346 val = SD_OCP_INT_EN | SD_DETECT_EN;
347 rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val);
351 static void rts5260_disable_ocp(struct rtsx_pcr *pcr)
355 mask = SD_OCP_INT_EN | SD_DETECT_EN;
356 rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
361 static int rts5260_get_ocpstat(struct rtsx_pcr *pcr, u8 *val)
363 return rtsx_pci_read_register(pcr, REG_OCPSTAT, val);
366 static int rts5260_get_ocpstat2(struct rtsx_pcr *pcr, u8 *val)
368 return rtsx_pci_read_register(pcr, REG_DV3318_OCPSTAT, val);
371 static void rts5260_clear_ocpstat(struct rtsx_pcr *pcr)
376 mask = SD_OCP_INT_CLR | SD_OC_CLR;
377 val = SD_OCP_INT_CLR | SD_OC_CLR;
379 rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
380 rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
381 DV3318_OCP_INT_CLR | DV3318_OCP_CLR,
382 DV3318_OCP_INT_CLR | DV3318_OCP_CLR);
384 rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
385 rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
386 DV3318_OCP_INT_CLR | DV3318_OCP_CLR, 0);
389 static void rts5260_process_ocp(struct rtsx_pcr *pcr)
391 if (!pcr->option.ocp_en)
394 rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
395 rts5260_get_ocpstat2(pcr, &pcr->ocp_stat2);
397 if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) ||
398 (pcr->ocp_stat2 & (DV3318_OCP_NOW | DV3318_OCP_EVER))) {
399 rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
400 rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
401 rtsx_pci_clear_ocpstat(pcr);
408 static int rts5260_init_hw(struct rtsx_pcr *pcr)
412 rtsx_pci_init_cmd(pcr);
414 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG1,
415 AUX_CLK_ACTIVE_SEL_MASK, MAC_CKSW_DONE);
416 /* Rest L1SUB Config */
417 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG3, 0xFF, 0x00);
418 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PM_CLK_FORCE_CTL,
419 CLK_PM_EN, CLK_PM_EN);
420 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWD_SUSPEND_EN, 0xFF, 0xFF);
421 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
422 PWR_GATE_EN, PWR_GATE_EN);
423 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, REG_VREF,
424 PWD_SUSPND_EN, PWD_SUSPND_EN);
425 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, RBCTL,
426 U_AUTO_DMA_EN_MASK, U_AUTO_DMA_DISABLE);
428 if (pcr->flags & PCR_REVERSE_SOCKET)
429 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0xB0);
431 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0x80);
433 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OBFF_CFG,
434 OBFF_EN_MASK, OBFF_DISABLE);
436 err = rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
440 rtsx_pci_init_ocp(pcr);
445 static void rts5260_pwr_saving_setting(struct rtsx_pcr *pcr)
447 int lss_l1_1, lss_l1_2;
449 lss_l1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN)
450 | rtsx_check_dev_flag(pcr, PM_L1_1_EN);
451 lss_l1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN)
452 | rtsx_check_dev_flag(pcr, PM_L1_2_EN);
454 rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, 0xFF, 0);
456 pcr_dbg(pcr, "Set parameters for L1.2.");
457 rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
459 rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
460 RTS5260_DVCC_OCP_EN |
461 RTS5260_DVCC_OCP_CL_EN,
462 RTS5260_DVCC_OCP_EN |
463 RTS5260_DVCC_OCP_CL_EN);
465 rtsx_pci_write_register(pcr, PWR_FE_CTL,
466 0xFF, PCIE_L1_2_PD_FE_EN);
467 } else if (lss_l1_1) {
468 pcr_dbg(pcr, "Set parameters for L1.1.");
469 rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
471 rtsx_pci_write_register(pcr, PWR_FE_CTL,
472 0xFF, PCIE_L1_1_PD_FE_EN);
474 pcr_dbg(pcr, "Set parameters for L1.");
475 rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
477 rtsx_pci_write_register(pcr, PWR_FE_CTL,
478 0xFF, PCIE_L1_0_PD_FE_EN);
481 rtsx_pci_write_register(pcr, CFG_L1_0_PCIE_DPHY_RET_VALUE,
482 0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
483 rtsx_pci_write_register(pcr, CFG_L1_0_PCIE_MAC_RET_VALUE,
484 0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
485 rtsx_pci_write_register(pcr, CFG_L1_0_CRC_SD30_RET_VALUE,
486 0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
487 rtsx_pci_write_register(pcr, CFG_L1_0_CRC_SD40_RET_VALUE,
488 0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
489 rtsx_pci_write_register(pcr, CFG_L1_0_SYS_RET_VALUE,
490 0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
492 rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_0,
493 0xFF, CFG_PCIE_APHY_OFF_0_DEFAULT);
494 rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_1,
495 0xFF, CFG_PCIE_APHY_OFF_1_DEFAULT);
496 rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_2,
497 0xFF, CFG_PCIE_APHY_OFF_2_DEFAULT);
498 rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_3,
499 0xFF, CFG_PCIE_APHY_OFF_3_DEFAULT);
501 rtsx_pci_write_register(pcr, PWC_CDR, 0xFF, PWC_CDR_DEFAULT);
503 rtsx_pci_write_register(pcr, CFG_LP_FPWM_VALUE,
504 0xFF, CFG_LP_FPWM_VALUE_DEFAULT);
505 /*No Power Saving WA*/
506 rtsx_pci_write_register(pcr, CFG_L1_0_CRC_MISC_RET_VALUE,
507 0xFF, CFG_L1_0_CRC_MISC_RET_VALUE_DEFAULT);
510 static void rts5260_init_from_cfg(struct rtsx_pcr *pcr)
512 struct rtsx_cr_option *option = &pcr->option;
515 rtsx_pci_read_config_dword(pcr, PCR_ASPM_SETTING_5260, &lval);
517 if (lval & ASPM_L1_1_EN_MASK)
518 rtsx_set_dev_flag(pcr, ASPM_L1_1_EN);
520 if (lval & ASPM_L1_2_EN_MASK)
521 rtsx_set_dev_flag(pcr, ASPM_L1_2_EN);
523 if (lval & PM_L1_1_EN_MASK)
524 rtsx_set_dev_flag(pcr, PM_L1_1_EN);
526 if (lval & PM_L1_2_EN_MASK)
527 rtsx_set_dev_flag(pcr, PM_L1_2_EN);
529 rts5260_pwr_saving_setting(pcr);
531 if (option->ltr_en) {
534 pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &val);
535 if (val & PCI_EXP_DEVCTL2_LTR_EN) {
536 option->ltr_enabled = true;
537 option->ltr_active = true;
538 rtsx_set_ltr_latency(pcr, option->ltr_active_latency);
540 option->ltr_enabled = false;
544 if (rtsx_check_dev_flag(pcr, ASPM_L1_1_EN | ASPM_L1_2_EN
545 | PM_L1_1_EN | PM_L1_2_EN))
546 option->force_clkreq_0 = false;
548 option->force_clkreq_0 = true;
551 static int rts5260_extra_init_hw(struct rtsx_pcr *pcr)
553 struct rtsx_cr_option *option = &pcr->option;
555 /* Set mcu_cnt to 7 to ensure data can be sampled properly */
556 rtsx_pci_write_register(pcr, 0xFC03, 0x7F, 0x07);
557 rtsx_pci_write_register(pcr, SSC_DIV_N_0, 0xFF, 0x5D);
559 rts5260_init_from_cfg(pcr);
562 rtsx_pci_write_register(pcr, RTS5260_AUTOLOAD_CFG4,
563 0xFF, RTS5260_MIMO_DISABLE);
564 /*Modify SDVCC Tune Default Parameters!*/
565 rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
566 RTS5260_DVCC_TUNE_MASK, RTS5260_DVCC_33);
568 rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
570 rts5260_init_hw(pcr);
573 * If u_force_clkreq_0 is enabled, CLKREQ# PIN will be forced
574 * to drive low, and we forcibly request clock.
576 if (option->force_clkreq_0)
577 rtsx_pci_write_register(pcr, PETXCFG,
578 FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_LOW);
580 rtsx_pci_write_register(pcr, PETXCFG,
581 FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
586 static void rts5260_set_aspm(struct rtsx_pcr *pcr, bool enable)
588 struct rtsx_cr_option *option = &pcr->option;
591 if (pcr->aspm_enabled == enable)
594 if (option->dev_aspm_mode == DEV_ASPM_DYNAMIC) {
597 rtsx_pci_update_cfg_byte(pcr, pcr->pcie_cap + PCI_EXP_LNKCTL,
599 } else if (option->dev_aspm_mode == DEV_ASPM_BACKDOOR) {
600 u8 mask = FORCE_ASPM_VAL_MASK | FORCE_ASPM_CTL0;
603 val = FORCE_ASPM_CTL0;
604 rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, mask, val);
607 pcr->aspm_enabled = enable;
610 static void rts5260_set_l1off_cfg_sub_d0(struct rtsx_pcr *pcr, int active)
612 struct rtsx_cr_option *option = &pcr->option;
613 u32 interrupt = rtsx_pci_readl(pcr, RTSX_BIPR);
614 int card_exist = (interrupt & SD_EXIST) | (interrupt & MS_EXIST);
615 int aspm_L1_1, aspm_L1_2;
618 aspm_L1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN);
619 aspm_L1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN);
622 /* run, latency: 60us */
624 val = option->ltr_l1off_snooze_sspwrgate;
626 /* l1off, latency: 300us */
628 val = option->ltr_l1off_sspwrgate;
631 if (aspm_L1_1 || aspm_L1_2) {
632 if (rtsx_check_dev_flag(pcr,
633 LTR_L1SS_PWR_GATE_CHECK_CARD_EN)) {
635 val &= ~L1OFF_MBIAS2_EN_5250;
637 val |= L1OFF_MBIAS2_EN_5250;
640 rtsx_set_l1off_sub(pcr, val);
643 static const struct pcr_ops rts5260_pcr_ops = {
644 .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
645 .turn_on_led = rts5260_turn_on_led,
646 .turn_off_led = rts5260_turn_off_led,
647 .extra_init_hw = rts5260_extra_init_hw,
648 .enable_auto_blink = rtsx_base_enable_auto_blink,
649 .disable_auto_blink = rtsx_base_disable_auto_blink,
650 .card_power_on = rts5260_card_power_on,
651 .card_power_off = rts5260_card_power_off,
652 .switch_output_voltage = rts5260_switch_output_voltage,
653 .force_power_down = rtsx_base_force_power_down,
654 .stop_cmd = rts5260_stop_cmd,
655 .set_aspm = rts5260_set_aspm,
656 .set_l1off_cfg_sub_d0 = rts5260_set_l1off_cfg_sub_d0,
657 .enable_ocp = rts5260_enable_ocp,
658 .disable_ocp = rts5260_disable_ocp,
659 .init_ocp = rts5260_init_ocp,
660 .process_ocp = rts5260_process_ocp,
661 .get_ocpstat = rts5260_get_ocpstat,
662 .clear_ocpstat = rts5260_clear_ocpstat,
665 void rts5260_init_params(struct rtsx_pcr *pcr)
667 struct rtsx_cr_option *option = &pcr->option;
668 struct rtsx_hw_param *hw_param = &pcr->hw_param;
670 pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
674 pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
675 pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
676 pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
677 pcr->aspm_en = ASPM_L1_EN;
678 pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
679 pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
681 pcr->ic_version = rts5260_get_ic_version(pcr);
682 pcr->sd_pull_ctl_enable_tbl = rts5260_sd_pull_ctl_enable_tbl;
683 pcr->sd_pull_ctl_disable_tbl = rts5260_sd_pull_ctl_disable_tbl;
684 pcr->ms_pull_ctl_enable_tbl = rts5260_ms_pull_ctl_enable_tbl;
685 pcr->ms_pull_ctl_disable_tbl = rts5260_ms_pull_ctl_disable_tbl;
687 pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
689 pcr->ops = &rts5260_pcr_ops;
691 option->dev_flags = (LTR_L1SS_PWR_GATE_CHECK_CARD_EN
692 | LTR_L1SS_PWR_GATE_EN);
693 option->ltr_en = true;
695 /* init latency of active, idle, L1OFF to 60us, 300us, 3ms */
696 option->ltr_active_latency = LTR_ACTIVE_LATENCY_DEF;
697 option->ltr_idle_latency = LTR_IDLE_LATENCY_DEF;
698 option->ltr_l1off_latency = LTR_L1OFF_LATENCY_DEF;
699 option->dev_aspm_mode = DEV_ASPM_DYNAMIC;
700 option->l1_snooze_delay = L1_SNOOZE_DELAY_DEF;
701 option->ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
702 option->ltr_l1off_snooze_sspwrgate =
703 LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
707 hw_param->interrupt_en |= SD_OC_INT_EN;
708 hw_param->ocp_glitch = SD_OCP_GLITCH_100U | SDVIO_OCP_GLITCH_800U;
709 option->sd_400mA_ocp_thd = RTS5260_DVCC_OCP_THD_550;
710 option->sd_800mA_ocp_thd = RTS5260_DVCC_OCP_THD_970;