1 /* Driver for Realtek PCI-Express card reader
3 * Copyright(c) 2009-2013 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 * Wei WANG (wei_wang@realsil.com.cn)
20 * Micky Ching (micky_ching@realsil.com.cn)
23 #include <linux/blkdev.h>
24 #include <linux/kthread.h>
25 #include <linux/sched.h>
26 #include <linux/workqueue.h>
27 #include <linux/vmalloc.h>
30 #include "rtsx_transport.h"
31 #include "rtsx_scsi.h"
32 #include "rtsx_card.h"
33 #include "rtsx_chip.h"
41 static void rtsx_calibration(struct rtsx_chip *chip)
43 rtsx_write_phy_register(chip, 0x1B, 0x135E);
45 rtsx_write_phy_register(chip, 0x00, 0x0280);
46 rtsx_write_phy_register(chip, 0x01, 0x7112);
47 rtsx_write_phy_register(chip, 0x01, 0x7110);
48 rtsx_write_phy_register(chip, 0x01, 0x7112);
49 rtsx_write_phy_register(chip, 0x01, 0x7113);
50 rtsx_write_phy_register(chip, 0x00, 0x0288);
53 void rtsx_disable_card_int(struct rtsx_chip *chip)
55 u32 reg = rtsx_readl(chip, RTSX_BIER);
57 reg &= ~(XD_INT_EN | SD_INT_EN | MS_INT_EN);
58 rtsx_writel(chip, RTSX_BIER, reg);
61 void rtsx_enable_card_int(struct rtsx_chip *chip)
63 u32 reg = rtsx_readl(chip, RTSX_BIER);
66 for (i = 0; i <= chip->max_lun; i++) {
67 if (chip->lun2card[i] & XD_CARD)
69 if (chip->lun2card[i] & SD_CARD)
71 if (chip->lun2card[i] & MS_CARD)
74 if (chip->hw_bypass_sd)
75 reg &= ~((u32)SD_INT_EN);
77 rtsx_writel(chip, RTSX_BIER, reg);
80 void rtsx_enable_bus_int(struct rtsx_chip *chip)
83 #ifndef DISABLE_CARD_INT
87 reg = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN;
89 #ifndef DISABLE_CARD_INT
90 for (i = 0; i <= chip->max_lun; i++) {
91 dev_dbg(rtsx_dev(chip), "lun2card[%d] = 0x%02x\n",
92 i, chip->lun2card[i]);
94 if (chip->lun2card[i] & XD_CARD)
96 if (chip->lun2card[i] & SD_CARD)
98 if (chip->lun2card[i] & MS_CARD)
101 if (chip->hw_bypass_sd)
102 reg &= ~((u32)SD_INT_EN);
105 if (chip->ic_version >= IC_VER_C)
106 reg |= DELINK_INT_EN;
110 if (!chip->adma_mode)
111 reg |= DATA_DONE_INT_EN;
113 /* Enable Bus Interrupt */
114 rtsx_writel(chip, RTSX_BIER, reg);
116 dev_dbg(rtsx_dev(chip), "RTSX_BIER: 0x%08x\n", reg);
119 void rtsx_disable_bus_int(struct rtsx_chip *chip)
121 rtsx_writel(chip, RTSX_BIER, 0);
124 static int rtsx_pre_handle_sdio_old(struct rtsx_chip *chip)
126 if (chip->ignore_sd && CHK_SDIO_EXIST(chip)) {
127 if (chip->asic_code) {
128 RTSX_WRITE_REG(chip, CARD_PULL_CTL5, 0xFF,
129 MS_INS_PU | SD_WP_PU | SD_CD_PU | SD_CMD_PU);
131 RTSX_WRITE_REG(chip, FPGA_PULL_CTL, 0xFF,
132 FPGA_SD_PULL_CTL_EN);
134 RTSX_WRITE_REG(chip, CARD_SHARE_MODE, 0xFF, CARD_SHARE_48_SD);
136 /* Enable SDIO internal clock */
137 RTSX_WRITE_REG(chip, 0xFF2C, 0x01, 0x01);
139 RTSX_WRITE_REG(chip, SDIO_CTRL, 0xFF,
140 SDIO_BUS_CTRL | SDIO_CD_CTRL);
145 chip->need_reset |= SD_CARD;
148 return STATUS_SUCCESS;
151 #ifdef HW_AUTO_SWITCH_SD_BUS
152 static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
155 int sw_bypass_sd = 0;
158 if (chip->driver_first_load) {
159 if (CHECK_PID(chip, 0x5288)) {
160 RTSX_READ_REG(chip, 0xFE5A, &tmp);
163 } else if (CHECK_PID(chip, 0x5208)) {
164 RTSX_READ_REG(chip, 0xFE70, &tmp);
169 if (chip->sdio_in_charge)
172 dev_dbg(rtsx_dev(chip), "chip->sdio_in_charge = %d\n",
173 chip->sdio_in_charge);
174 dev_dbg(rtsx_dev(chip), "chip->driver_first_load = %d\n",
175 chip->driver_first_load);
176 dev_dbg(rtsx_dev(chip), "sw_bypass_sd = %d\n",
180 u8 cd_toggle_mask = 0;
182 RTSX_READ_REG(chip, TLPTISTAT, &tmp);
183 cd_toggle_mask = 0x08;
185 if (tmp & cd_toggle_mask) {
186 /* Disable sdio_bus_auto_switch */
187 if (CHECK_PID(chip, 0x5288))
188 RTSX_WRITE_REG(chip, 0xFE5A, 0x08, 0x00);
189 else if (CHECK_PID(chip, 0x5208))
190 RTSX_WRITE_REG(chip, 0xFE70, 0x80, 0x00);
192 RTSX_WRITE_REG(chip, TLPTISTAT, 0xFF, tmp);
194 chip->need_reset |= SD_CARD;
196 dev_dbg(rtsx_dev(chip), "Chip inserted with SDIO!\n");
198 if (chip->asic_code) {
199 retval = sd_pull_ctl_enable(chip);
200 if (retval != STATUS_SUCCESS)
201 TRACE_RET(chip, STATUS_FAIL);
203 RTSX_WRITE_REG(chip, FPGA_PULL_CTL,
204 FPGA_SD_PULL_CTL_BIT | 0x20, 0);
206 retval = card_share_mode(chip, SD_CARD);
207 if (retval != STATUS_SUCCESS)
208 TRACE_RET(chip, STATUS_FAIL);
210 /* Enable sdio_bus_auto_switch */
211 if (CHECK_PID(chip, 0x5288))
212 RTSX_WRITE_REG(chip, 0xFE5A, 0x08, 0x08);
213 else if (CHECK_PID(chip, 0x5208))
214 RTSX_WRITE_REG(chip, 0xFE70, 0x80, 0x80);
216 chip->chip_insert_with_sdio = 1;
220 RTSX_WRITE_REG(chip, TLPTISTAT, 0x08, 0x08);
222 chip->need_reset |= SD_CARD;
225 return STATUS_SUCCESS;
229 int rtsx_reset_chip(struct rtsx_chip *chip)
233 rtsx_writel(chip, RTSX_HCBAR, chip->host_cmds_addr);
235 rtsx_disable_aspm(chip);
237 RTSX_WRITE_REG(chip, HOST_SLEEP_STATE, 0x03, 0x00);
239 /* Disable card clock */
240 RTSX_WRITE_REG(chip, CARD_CLK_EN, 0x1E, 0);
243 /* SSC power on, OCD power on */
244 if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
245 RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, 0);
247 RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, MS_OC_POWER_DOWN);
249 RTSX_WRITE_REG(chip, OCPPARA1, OCP_TIME_MASK, OCP_TIME_800);
250 RTSX_WRITE_REG(chip, OCPPARA2, OCP_THD_MASK, OCP_THD_244_946);
251 RTSX_WRITE_REG(chip, OCPCTL, 0xFF, CARD_OC_INT_EN | CARD_DETECT_EN);
254 RTSX_WRITE_REG(chip, FPDCTL, OC_POWER_DOWN, OC_POWER_DOWN);
257 if (!CHECK_PID(chip, 0x5288))
258 RTSX_WRITE_REG(chip, CARD_GPIO_DIR, 0xFF, 0x03);
261 RTSX_WRITE_REG(chip, CARD_GPIO, 0xFF, 0x03);
263 /* Reset delink mode */
264 RTSX_WRITE_REG(chip, CHANGE_LINK_STATE, 0x0A, 0);
266 /* Card driving select */
267 RTSX_WRITE_REG(chip, CARD_DRIVE_SEL, 0xFF, chip->card_drive_sel);
269 #ifdef LED_AUTO_BLINK
270 RTSX_WRITE_REG(chip, CARD_AUTO_BLINK, 0xFF,
271 LED_BLINK_SPEED | BLINK_EN | LED_GPIO0);
274 if (chip->asic_code) {
275 /* Enable SSC Clock */
276 RTSX_WRITE_REG(chip, SSC_CTL1, 0xFF, SSC_8X_EN | SSC_SEL_4M);
277 RTSX_WRITE_REG(chip, SSC_CTL2, 0xFF, 0x12);
280 /* Disable cd_pwr_save (u_force_rst_core_en=0, u_cd_rst_core_en=0)
282 bit[1] u_cd_rst_core_en rst_value = 0
283 bit[2] u_force_rst_core_en rst_value = 0
284 bit[5] u_mac_phy_rst_n_dbg rst_value = 1
285 bit[4] u_non_sticky_rst_n_dbg rst_value = 0
287 RTSX_WRITE_REG(chip, CHANGE_LINK_STATE, 0x16, 0x10);
290 if (chip->aspm_l0s_l1_en) {
291 if (chip->dynamic_aspm) {
292 if (CHK_SDIO_EXIST(chip)) {
293 if (CHECK_PID(chip, 0x5288)) {
294 retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
295 if (retval != STATUS_SUCCESS)
296 TRACE_RET(chip, STATUS_FAIL);
300 if (CHECK_PID(chip, 0x5208))
301 RTSX_WRITE_REG(chip, ASPM_FORCE_CTL,
304 retval = rtsx_write_config_byte(chip, LCTLR,
305 chip->aspm_l0s_l1_en);
306 if (retval != STATUS_SUCCESS)
307 TRACE_RET(chip, STATUS_FAIL);
309 chip->aspm_level[0] = chip->aspm_l0s_l1_en;
310 if (CHK_SDIO_EXIST(chip)) {
311 chip->aspm_level[1] = chip->aspm_l0s_l1_en;
312 if (CHECK_PID(chip, 0x5288))
313 retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
315 retval = rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFF, chip->aspm_l0s_l1_en);
317 if (retval != STATUS_SUCCESS)
318 TRACE_RET(chip, STATUS_FAIL);
322 chip->aspm_enabled = 1;
325 if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
326 retval = rtsx_write_phy_register(chip, 0x07, 0x0129);
327 if (retval != STATUS_SUCCESS)
328 TRACE_RET(chip, STATUS_FAIL);
330 retval = rtsx_write_config_byte(chip, LCTLR,
331 chip->aspm_l0s_l1_en);
332 if (retval != STATUS_SUCCESS)
333 TRACE_RET(chip, STATUS_FAIL);
336 retval = rtsx_write_config_byte(chip, 0x81, 1);
337 if (retval != STATUS_SUCCESS)
338 TRACE_RET(chip, STATUS_FAIL);
340 if (CHK_SDIO_EXIST(chip)) {
341 if (CHECK_PID(chip, 0x5288))
342 retval = rtsx_write_cfg_dw(chip, 2, 0xC0,
345 retval = rtsx_write_cfg_dw(chip, 1, 0xC0,
348 if (retval != STATUS_SUCCESS)
349 TRACE_RET(chip, STATUS_FAIL);
353 if (CHECK_PID(chip, 0x5288)) {
354 if (!CHK_SDIO_EXIST(chip)) {
355 retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFFFF,
357 if (retval != STATUS_SUCCESS)
358 TRACE_RET(chip, STATUS_FAIL);
360 retval = rtsx_write_cfg_dw(chip, 2, 0x84, 0xFF, 0x03);
361 if (retval != STATUS_SUCCESS)
362 TRACE_RET(chip, STATUS_FAIL);
367 RTSX_WRITE_REG(chip, IRQSTAT0, LINK_RDY_INT, LINK_RDY_INT);
369 RTSX_WRITE_REG(chip, PERST_GLITCH_WIDTH, 0xFF, 0x80);
371 /* Enable PCIE interrupt */
372 if (chip->asic_code) {
373 if (CHECK_PID(chip, 0x5208)) {
374 if (chip->phy_debug_mode) {
375 RTSX_WRITE_REG(chip, CDRESUMECTL, 0x77, 0);
376 rtsx_disable_bus_int(chip);
378 rtsx_enable_bus_int(chip);
381 if (chip->ic_version >= IC_VER_D) {
383 retval = rtsx_read_phy_register(chip, 0x00,
385 if (retval != STATUS_SUCCESS)
386 TRACE_RET(chip, STATUS_FAIL);
390 retval = rtsx_write_phy_register(chip, 0x00,
392 if (retval != STATUS_SUCCESS)
393 TRACE_RET(chip, STATUS_FAIL);
395 retval = rtsx_read_phy_register(chip, 0x1C,
397 if (retval != STATUS_SUCCESS)
398 TRACE_RET(chip, STATUS_FAIL);
401 retval = rtsx_write_phy_register(chip, 0x1C,
403 if (retval != STATUS_SUCCESS)
404 TRACE_RET(chip, STATUS_FAIL);
408 if (chip->driver_first_load &&
409 (chip->ic_version < IC_VER_C))
410 rtsx_calibration(chip);
413 rtsx_enable_bus_int(chip);
416 rtsx_enable_bus_int(chip);
419 chip->need_reset = 0;
421 chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
423 if (chip->hw_bypass_sd)
425 dev_dbg(rtsx_dev(chip), "In %s, chip->int_reg = 0x%x\n", __func__,
427 if (chip->int_reg & SD_EXIST) {
428 #ifdef HW_AUTO_SWITCH_SD_BUS
429 if (CHECK_PID(chip, 0x5208) && (chip->ic_version < IC_VER_C))
430 retval = rtsx_pre_handle_sdio_old(chip);
432 retval = rtsx_pre_handle_sdio_new(chip);
434 dev_dbg(rtsx_dev(chip), "chip->need_reset = 0x%x (rtsx_reset_chip)\n",
435 (unsigned int)(chip->need_reset));
436 #else /* HW_AUTO_SWITCH_SD_BUS */
437 retval = rtsx_pre_handle_sdio_old(chip);
438 #endif /* HW_AUTO_SWITCH_SD_BUS */
439 if (retval != STATUS_SUCCESS)
440 TRACE_RET(chip, STATUS_FAIL);
444 RTSX_WRITE_REG(chip, SDIO_CTRL, SDIO_BUS_CTRL | SDIO_CD_CTRL,
449 if (chip->int_reg & XD_EXIST)
450 chip->need_reset |= XD_CARD;
451 if (chip->int_reg & MS_EXIST)
452 chip->need_reset |= MS_CARD;
453 if (chip->int_reg & CARD_EXIST)
454 RTSX_WRITE_REG(chip, SSC_CTL1, SSC_RSTB, SSC_RSTB);
456 dev_dbg(rtsx_dev(chip), "In %s, chip->need_reset = 0x%x\n", __func__,
457 (unsigned int)(chip->need_reset));
459 RTSX_WRITE_REG(chip, RCCTL, 0x01, 0x00);
461 if (CHECK_PID(chip, 0x5208) || CHECK_PID(chip, 0x5288)) {
462 /* Turn off main power when entering S3/S4 state */
463 RTSX_WRITE_REG(chip, MAIN_PWR_OFF_CTL, 0x03, 0x03);
466 if (chip->remote_wakeup_en && !chip->auto_delink_en) {
467 RTSX_WRITE_REG(chip, WAKE_SEL_CTL, 0x07, 0x07);
468 if (chip->aux_pwr_exist)
469 RTSX_WRITE_REG(chip, PME_FORCE_CTL, 0xFF, 0x33);
471 RTSX_WRITE_REG(chip, WAKE_SEL_CTL, 0x07, 0x04);
472 RTSX_WRITE_REG(chip, PME_FORCE_CTL, 0xFF, 0x30);
475 if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D))
476 RTSX_WRITE_REG(chip, PETXCFG, 0x1C, 0x14);
478 if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
479 retval = rtsx_clr_phy_reg_bit(chip, 0x1C, 2);
480 if (retval != STATUS_SUCCESS)
481 TRACE_RET(chip, STATUS_FAIL);
484 if (chip->ft2_fast_mode) {
485 RTSX_WRITE_REG(chip, CARD_PWR_CTL, 0xFF,
486 MS_PARTIAL_POWER_ON | SD_PARTIAL_POWER_ON);
487 udelay(chip->pmos_pwr_on_interval);
488 RTSX_WRITE_REG(chip, CARD_PWR_CTL, 0xFF,
489 MS_POWER_ON | SD_POWER_ON);
495 rtsx_reset_detected_cards(chip, 0);
497 chip->driver_first_load = 0;
499 return STATUS_SUCCESS;
502 static inline int check_sd_speed_prior(u32 sd_speed_prior)
504 int i, fake_para = 0;
506 for (i = 0; i < 4; i++) {
507 u8 tmp = (u8)(sd_speed_prior >> (i*8));
508 if ((tmp < 0x01) || (tmp > 0x04)) {
517 static inline int check_sd_current_prior(u32 sd_current_prior)
519 int i, fake_para = 0;
521 for (i = 0; i < 4; i++) {
522 u8 tmp = (u8)(sd_current_prior >> (i*8));
532 static int rts5208_init(struct rtsx_chip *chip)
538 RTSX_WRITE_REG(chip, CLK_SEL, 0x03, 0x03);
539 RTSX_READ_REG(chip, CLK_SEL, &val);
545 if (chip->asic_code) {
546 retval = rtsx_read_phy_register(chip, 0x1C, ®);
547 if (retval != STATUS_SUCCESS)
548 TRACE_RET(chip, STATUS_FAIL);
550 dev_dbg(rtsx_dev(chip), "Value of phy register 0x1C is 0x%x\n",
552 chip->ic_version = (reg >> 4) & 0x07;
553 if (reg & PHY_DEBUG_MODE)
554 chip->phy_debug_mode = 1;
556 chip->phy_debug_mode = 0;
559 RTSX_READ_REG(chip, 0xFE80, &val);
560 chip->ic_version = val;
561 chip->phy_debug_mode = 0;
564 RTSX_READ_REG(chip, PDINFO, &val);
565 dev_dbg(rtsx_dev(chip), "PDINFO: 0x%x\n", val);
566 if (val & AUX_PWR_DETECTED)
567 chip->aux_pwr_exist = 1;
569 chip->aux_pwr_exist = 0;
571 RTSX_READ_REG(chip, 0xFE50, &val);
573 chip->hw_bypass_sd = 1;
575 chip->hw_bypass_sd = 0;
577 rtsx_read_config_byte(chip, 0x0E, &val);
579 SET_SDIO_EXIST(chip);
581 CLR_SDIO_EXIST(chip);
583 if (chip->use_hw_setting) {
584 RTSX_READ_REG(chip, CHANGE_LINK_STATE, &val);
586 chip->auto_delink_en = 1;
588 chip->auto_delink_en = 0;
591 return STATUS_SUCCESS;
594 static int rts5288_init(struct rtsx_chip *chip)
597 u8 val = 0, max_func;
600 RTSX_WRITE_REG(chip, CLK_SEL, 0x03, 0x03);
601 RTSX_READ_REG(chip, CLK_SEL, &val);
607 chip->ic_version = 0;
608 chip->phy_debug_mode = 0;
610 RTSX_READ_REG(chip, PDINFO, &val);
611 dev_dbg(rtsx_dev(chip), "PDINFO: 0x%x\n", val);
612 if (val & AUX_PWR_DETECTED)
613 chip->aux_pwr_exist = 1;
615 chip->aux_pwr_exist = 0;
617 RTSX_READ_REG(chip, CARD_SHARE_MODE, &val);
618 dev_dbg(rtsx_dev(chip), "CARD_SHARE_MODE: 0x%x\n", val);
620 chip->baro_pkg = QFN;
622 chip->baro_pkg = LQFP;
624 RTSX_READ_REG(chip, 0xFE5A, &val);
626 chip->hw_bypass_sd = 1;
628 chip->hw_bypass_sd = 0;
630 retval = rtsx_read_cfg_dw(chip, 0, 0x718, &lval);
631 if (retval != STATUS_SUCCESS)
632 TRACE_RET(chip, STATUS_FAIL);
634 max_func = (u8)((lval >> 29) & 0x07);
635 dev_dbg(rtsx_dev(chip), "Max function number: %d\n", max_func);
636 if (max_func == 0x02)
637 SET_SDIO_EXIST(chip);
639 CLR_SDIO_EXIST(chip);
641 if (chip->use_hw_setting) {
642 RTSX_READ_REG(chip, CHANGE_LINK_STATE, &val);
644 chip->auto_delink_en = 1;
646 chip->auto_delink_en = 0;
648 if (CHECK_BARO_PKG(chip, LQFP))
649 chip->lun_mode = SD_MS_1LUN;
651 chip->lun_mode = DEFAULT_SINGLE;
655 return STATUS_SUCCESS;
658 int rtsx_init_chip(struct rtsx_chip *chip)
660 struct sd_info *sd_card = &(chip->sd_card);
661 struct xd_info *xd_card = &(chip->xd_card);
662 struct ms_info *ms_card = &(chip->ms_card);
666 dev_dbg(rtsx_dev(chip), "Vendor ID: 0x%04x, Product ID: 0x%04x\n",
667 chip->vendor_id, chip->product_id);
669 chip->ic_version = 0;
675 memset(xd_card, 0, sizeof(struct xd_info));
676 memset(sd_card, 0, sizeof(struct sd_info));
677 memset(ms_card, 0, sizeof(struct ms_info));
679 chip->xd_reset_counter = 0;
680 chip->sd_reset_counter = 0;
681 chip->ms_reset_counter = 0;
683 chip->xd_show_cnt = MAX_SHOW_CNT;
684 chip->sd_show_cnt = MAX_SHOW_CNT;
685 chip->ms_show_cnt = MAX_SHOW_CNT;
688 chip->auto_delink_cnt = 0;
689 chip->auto_delink_allowed = 1;
690 rtsx_set_stat(chip, RTSX_STAT_INIT);
692 chip->aspm_enabled = 0;
693 chip->chip_insert_with_sdio = 0;
696 chip->sdio_counter = 0;
698 chip->phy_debug_mode = 0;
699 chip->sdio_func_exist = 0;
700 memset(chip->sdio_raw_data, 0, 12);
702 for (i = 0; i < MAX_ALLOWED_LUN_CNT; i++) {
703 set_sense_type(chip, i, SENSE_TYPE_NO_SENSE);
704 chip->rw_fail_cnt[i] = 0;
707 if (!check_sd_speed_prior(chip->sd_speed_prior))
708 chip->sd_speed_prior = 0x01040203;
710 dev_dbg(rtsx_dev(chip), "sd_speed_prior = 0x%08x\n",
711 chip->sd_speed_prior);
713 if (!check_sd_current_prior(chip->sd_current_prior))
714 chip->sd_current_prior = 0x00010203;
716 dev_dbg(rtsx_dev(chip), "sd_current_prior = 0x%08x\n",
717 chip->sd_current_prior);
719 if ((chip->sd_ddr_tx_phase > 31) || (chip->sd_ddr_tx_phase < 0))
720 chip->sd_ddr_tx_phase = 0;
722 if ((chip->mmc_ddr_tx_phase > 31) || (chip->mmc_ddr_tx_phase < 0))
723 chip->mmc_ddr_tx_phase = 0;
725 RTSX_WRITE_REG(chip, FPDCTL, SSC_POWER_DOWN, 0);
727 RTSX_WRITE_REG(chip, CLK_DIV, 0x07, 0x07);
728 dev_dbg(rtsx_dev(chip), "chip->use_hw_setting = %d\n",
729 chip->use_hw_setting);
731 if (CHECK_PID(chip, 0x5208)) {
732 retval = rts5208_init(chip);
733 if (retval != STATUS_SUCCESS)
734 TRACE_RET(chip, STATUS_FAIL);
736 } else if (CHECK_PID(chip, 0x5288)) {
737 retval = rts5288_init(chip);
738 if (retval != STATUS_SUCCESS)
739 TRACE_RET(chip, STATUS_FAIL);
743 if (chip->ss_en == 2)
746 dev_dbg(rtsx_dev(chip), "chip->asic_code = %d\n", chip->asic_code);
747 dev_dbg(rtsx_dev(chip), "chip->ic_version = 0x%x\n", chip->ic_version);
748 dev_dbg(rtsx_dev(chip), "chip->phy_debug_mode = %d\n",
749 chip->phy_debug_mode);
750 dev_dbg(rtsx_dev(chip), "chip->aux_pwr_exist = %d\n",
751 chip->aux_pwr_exist);
752 dev_dbg(rtsx_dev(chip), "chip->sdio_func_exist = %d\n",
753 chip->sdio_func_exist);
754 dev_dbg(rtsx_dev(chip), "chip->hw_bypass_sd = %d\n",
756 dev_dbg(rtsx_dev(chip), "chip->aspm_l0s_l1_en = %d\n",
757 chip->aspm_l0s_l1_en);
758 dev_dbg(rtsx_dev(chip), "chip->lun_mode = %d\n", chip->lun_mode);
759 dev_dbg(rtsx_dev(chip), "chip->auto_delink_en = %d\n",
760 chip->auto_delink_en);
761 dev_dbg(rtsx_dev(chip), "chip->ss_en = %d\n", chip->ss_en);
762 dev_dbg(rtsx_dev(chip), "chip->baro_pkg = %d\n", chip->baro_pkg);
764 if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
765 chip->card2lun[SD_CARD] = 0;
766 chip->card2lun[MS_CARD] = 1;
767 chip->card2lun[XD_CARD] = 0xFF;
768 chip->lun2card[0] = SD_CARD;
769 chip->lun2card[1] = MS_CARD;
771 SET_SDIO_IGNORED(chip);
772 } else if (CHECK_LUN_MODE(chip, SD_MS_1LUN)) {
773 chip->card2lun[SD_CARD] = 0;
774 chip->card2lun[MS_CARD] = 0;
775 chip->card2lun[XD_CARD] = 0xFF;
776 chip->lun2card[0] = SD_CARD | MS_CARD;
779 chip->card2lun[XD_CARD] = 0;
780 chip->card2lun[SD_CARD] = 0;
781 chip->card2lun[MS_CARD] = 0;
782 chip->lun2card[0] = XD_CARD | SD_CARD | MS_CARD;
786 retval = rtsx_reset_chip(chip);
787 if (retval != STATUS_SUCCESS)
788 TRACE_RET(chip, STATUS_FAIL);
790 return STATUS_SUCCESS;
793 void rtsx_release_chip(struct rtsx_chip *chip)
795 xd_free_l2p_tbl(chip);
796 ms_free_l2p_tbl(chip);
797 chip->card_exist = 0;
798 chip->card_ready = 0;
801 #if !defined(LED_AUTO_BLINK) && defined(REGULAR_BLINK)
802 static inline void rtsx_blink_led(struct rtsx_chip *chip)
804 if (chip->card_exist && chip->blink_led) {
805 if (chip->led_toggle_counter < LED_TOGGLE_INTERVAL) {
806 chip->led_toggle_counter++;
808 chip->led_toggle_counter = 0;
809 toggle_gpio(chip, LED_GPIO);
815 static void rtsx_monitor_aspm_config(struct rtsx_chip *chip)
817 int maybe_support_aspm, reg_changed;
819 u8 reg0 = 0, reg1 = 0;
821 maybe_support_aspm = 0;
823 rtsx_read_config_byte(chip, LCTLR, ®0);
824 if (chip->aspm_level[0] != reg0) {
826 chip->aspm_level[0] = reg0;
828 if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
829 rtsx_read_cfg_dw(chip, 1, 0xC0, &tmp);
831 if (chip->aspm_level[1] != reg1) {
833 chip->aspm_level[1] = reg1;
836 if ((reg0 & 0x03) && (reg1 & 0x03))
837 maybe_support_aspm = 1;
841 maybe_support_aspm = 1;
846 if (maybe_support_aspm)
847 chip->aspm_l0s_l1_en = 0x03;
849 dev_dbg(rtsx_dev(chip), "aspm_level[0] = 0x%02x, aspm_level[1] = 0x%02x\n",
850 chip->aspm_level[0], chip->aspm_level[1]);
852 if (chip->aspm_l0s_l1_en) {
853 chip->aspm_enabled = 1;
855 chip->aspm_enabled = 0;
858 rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFF,
859 0x30 | chip->aspm_level[0] |
860 (chip->aspm_level[1] << 2));
864 void rtsx_polling_func(struct rtsx_chip *chip)
866 #ifdef SUPPORT_SD_LOCK
867 struct sd_info *sd_card = &(chip->sd_card);
871 if (rtsx_chk_stat(chip, RTSX_STAT_SUSPEND))
874 if (rtsx_chk_stat(chip, RTSX_STAT_DELINK))
877 if (chip->polling_config) {
879 rtsx_read_config_byte(chip, 0, &val);
882 if (rtsx_chk_stat(chip, RTSX_STAT_SS))
887 rtsx_read_register(chip, OCPSTAT, &(chip->ocp_stat));
889 if (chip->card_exist & SD_CARD)
890 sd_power_off_card3v3(chip);
891 else if (chip->card_exist & MS_CARD)
892 ms_power_off_card3v3(chip);
893 else if (chip->card_exist & XD_CARD)
894 xd_power_off_card3v3(chip);
900 #ifdef SUPPORT_SD_LOCK
901 if (sd_card->sd_erase_status) {
902 if (chip->card_exist & SD_CARD) {
904 rtsx_read_register(chip, 0xFD30, &val);
906 sd_card->sd_erase_status = SD_NOT_ERASE;
907 sd_card->sd_lock_notify = 1;
908 chip->need_reinit |= SD_CARD;
911 sd_card->sd_erase_status = SD_NOT_ERASE;
916 rtsx_init_cards(chip);
921 if (CHECK_PID(chip, 0x5288)) {
924 if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
926 rtsx_read_cfg_dw(chip, 1, 0x04, &val);
936 if (ss_allowed && !chip->sd_io) {
937 if (rtsx_get_stat(chip) != RTSX_STAT_IDLE) {
938 chip->ss_counter = 0;
940 if (chip->ss_counter <
941 (chip->ss_idle_period / POLLING_INTERVAL)) {
944 rtsx_exclusive_enter_ss(chip);
950 if (CHECK_PID(chip, 0x5208)) {
951 rtsx_monitor_aspm_config(chip);
953 #ifdef SUPPORT_SDIO_ASPM
954 if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip) &&
955 chip->aspm_l0s_l1_en && chip->dynamic_aspm) {
957 dynamic_configure_sdio_aspm(chip);
959 if (!chip->sdio_aspm) {
960 dev_dbg(rtsx_dev(chip), "SDIO enter ASPM!\n");
961 rtsx_write_register(chip,
962 ASPM_FORCE_CTL, 0xFC,
963 0x30 | (chip->aspm_level[1] << 2));
971 if (chip->idle_counter < IDLE_MAX_COUNT) {
972 chip->idle_counter++;
974 if (rtsx_get_stat(chip) != RTSX_STAT_IDLE) {
975 dev_dbg(rtsx_dev(chip), "Idle state!\n");
976 rtsx_set_stat(chip, RTSX_STAT_IDLE);
978 #if !defined(LED_AUTO_BLINK) && defined(REGULAR_BLINK)
979 chip->led_toggle_counter = 0;
981 rtsx_force_power_on(chip, SSC_PDCTL);
983 turn_off_led(chip, LED_GPIO);
985 if (chip->auto_power_down && !chip->card_ready && !chip->sd_io)
986 rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
991 switch (rtsx_get_stat(chip)) {
993 #if !defined(LED_AUTO_BLINK) && defined(REGULAR_BLINK)
994 rtsx_blink_led(chip);
996 do_remaining_work(chip);
1000 if (chip->sd_io && !chip->sd_int)
1001 try_to_switch_sdio_ctrl(chip);
1003 rtsx_enable_aspm(chip);
1012 if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
1013 if (chip->ocp_stat &
1014 (SD_OC_NOW | SD_OC_EVER | MS_OC_NOW | MS_OC_EVER))
1015 dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
1018 if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
1019 if (chip->card_exist & SD_CARD) {
1020 rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN,
1022 card_power_off(chip, SD_CARD);
1023 chip->card_fail |= SD_CARD;
1026 if (chip->ocp_stat & (MS_OC_NOW | MS_OC_EVER)) {
1027 if (chip->card_exist & MS_CARD) {
1028 rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN,
1030 card_power_off(chip, MS_CARD);
1031 chip->card_fail |= MS_CARD;
1035 if (chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
1036 dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
1038 if (chip->card_exist & SD_CARD) {
1039 rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN,
1041 chip->card_fail |= SD_CARD;
1042 } else if (chip->card_exist & MS_CARD) {
1043 rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN,
1045 chip->card_fail |= MS_CARD;
1046 } else if (chip->card_exist & XD_CARD) {
1047 rtsx_write_register(chip, CARD_OE, XD_OUTPUT_EN,
1049 chip->card_fail |= XD_CARD;
1051 card_power_off(chip, SD_CARD);
1057 if (chip->auto_delink_en && chip->auto_delink_allowed &&
1058 !chip->card_ready && !chip->card_ejected && !chip->sd_io) {
1059 int enter_L1 = chip->auto_delink_in_L1 && (
1060 chip->aspm_l0s_l1_en || chip->ss_en);
1061 int delink_stage1_cnt = chip->delink_stage1_step;
1062 int delink_stage2_cnt = delink_stage1_cnt +
1063 chip->delink_stage2_step;
1064 int delink_stage3_cnt = delink_stage2_cnt +
1065 chip->delink_stage3_step;
1067 if (chip->auto_delink_cnt <= delink_stage3_cnt) {
1068 if (chip->auto_delink_cnt == delink_stage1_cnt) {
1069 rtsx_set_stat(chip, RTSX_STAT_DELINK);
1071 if (chip->asic_code && CHECK_PID(chip, 0x5208))
1072 rtsx_set_phy_reg_bit(chip, 0x1C, 2);
1074 if (chip->card_exist) {
1075 dev_dbg(rtsx_dev(chip), "False card inserted, do force delink\n");
1078 rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 1);
1080 rtsx_write_register(chip,
1081 CHANGE_LINK_STATE, 0x0A,
1085 rtsx_enter_L1(chip);
1087 chip->auto_delink_cnt = delink_stage3_cnt + 1;
1089 dev_dbg(rtsx_dev(chip), "No card inserted, do delink\n");
1092 rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 1);
1094 rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 0x02);
1097 rtsx_enter_L1(chip);
1102 if (chip->auto_delink_cnt == delink_stage2_cnt) {
1103 dev_dbg(rtsx_dev(chip), "Try to do force delink\n");
1108 if (chip->asic_code && CHECK_PID(chip, 0x5208))
1109 rtsx_set_phy_reg_bit(chip, 0x1C, 2);
1111 rtsx_write_register(chip, CHANGE_LINK_STATE,
1115 chip->auto_delink_cnt++;
1118 chip->auto_delink_cnt = 0;
1122 void rtsx_undo_delink(struct rtsx_chip *chip)
1124 chip->auto_delink_allowed = 0;
1125 rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0x00);
1129 * rtsx_stop_cmd - stop command transfer and DMA transfer
1130 * @chip: Realtek's card reader chip
1131 * @card: flash card type
1133 * Stop command transfer and DMA transfer.
1134 * This function is called in error handler.
1136 void rtsx_stop_cmd(struct rtsx_chip *chip, int card)
1140 for (i = 0; i <= 8; i++) {
1141 int addr = RTSX_HCBAR + i * 4;
1143 reg = rtsx_readl(chip, addr);
1144 dev_dbg(rtsx_dev(chip), "BAR (0x%02x): 0x%08x\n", addr, reg);
1146 rtsx_writel(chip, RTSX_HCBCTLR, STOP_CMD);
1147 rtsx_writel(chip, RTSX_HDBCTLR, STOP_DMA);
1149 for (i = 0; i < 16; i++) {
1150 u16 addr = 0xFE20 + (u16)i;
1152 rtsx_read_register(chip, addr, &val);
1153 dev_dbg(rtsx_dev(chip), "0x%04X: 0x%02x\n", addr, val);
1156 rtsx_write_register(chip, DMACTL, 0x80, 0x80);
1157 rtsx_write_register(chip, RBCTL, 0x80, 0x80);
1160 #define MAX_RW_REG_CNT 1024
1162 int rtsx_write_register(struct rtsx_chip *chip, u16 addr, u8 mask, u8 data)
1167 val |= (u32)(addr & 0x3FFF) << 16;
1168 val |= (u32)mask << 8;
1171 rtsx_writel(chip, RTSX_HAIMR, val);
1173 for (i = 0; i < MAX_RW_REG_CNT; i++) {
1174 val = rtsx_readl(chip, RTSX_HAIMR);
1175 if ((val & (1 << 31)) == 0) {
1176 if (data != (u8)val)
1177 TRACE_RET(chip, STATUS_FAIL);
1179 return STATUS_SUCCESS;
1183 TRACE_RET(chip, STATUS_TIMEDOUT);
1186 int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
1194 val |= (u32)(addr & 0x3FFF) << 16;
1196 rtsx_writel(chip, RTSX_HAIMR, val);
1198 for (i = 0; i < MAX_RW_REG_CNT; i++) {
1199 val = rtsx_readl(chip, RTSX_HAIMR);
1200 if ((val & (1 << 31)) == 0)
1204 if (i >= MAX_RW_REG_CNT)
1205 TRACE_RET(chip, STATUS_TIMEDOUT);
1208 *data = (u8)(val & 0xFF);
1210 return STATUS_SUCCESS;
1213 int rtsx_write_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 mask,
1219 for (i = 0; i < 4; i++) {
1221 RTSX_WRITE_REG(chip, CFGDATA0 + i,
1222 0xFF, (u8)(val & mask & 0xFF));
1230 RTSX_WRITE_REG(chip, CFGADDR0, 0xFF, (u8)addr);
1231 RTSX_WRITE_REG(chip, CFGADDR1, 0xFF, (u8)(addr >> 8));
1233 RTSX_WRITE_REG(chip, CFGRWCTL, 0xFF,
1234 0x80 | mode | ((func_no & 0x03) << 4));
1236 for (i = 0; i < MAX_RW_REG_CNT; i++) {
1237 RTSX_READ_REG(chip, CFGRWCTL, &tmp);
1238 if ((tmp & 0x80) == 0)
1243 return STATUS_SUCCESS;
1246 int rtsx_read_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 *val)
1252 RTSX_WRITE_REG(chip, CFGADDR0, 0xFF, (u8)addr);
1253 RTSX_WRITE_REG(chip, CFGADDR1, 0xFF, (u8)(addr >> 8));
1254 RTSX_WRITE_REG(chip, CFGRWCTL, 0xFF, 0x80 | ((func_no & 0x03) << 4));
1256 for (i = 0; i < MAX_RW_REG_CNT; i++) {
1257 RTSX_READ_REG(chip, CFGRWCTL, &tmp);
1258 if ((tmp & 0x80) == 0)
1262 for (i = 0; i < 4; i++) {
1263 RTSX_READ_REG(chip, CFGDATA0 + i, &tmp);
1264 data |= (u32)tmp << (i * 8);
1270 return STATUS_SUCCESS;
1273 int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
1277 u16 offset = addr % 4;
1278 u16 aligned_addr = addr - offset;
1283 TRACE_RET(chip, STATUS_NOMEM);
1285 if ((len + offset) % 4)
1286 dw_len = (len + offset) / 4 + 1;
1288 dw_len = (len + offset) / 4;
1290 dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
1292 data = vzalloc(dw_len * 4);
1294 TRACE_RET(chip, STATUS_NOMEM);
1296 mask = vzalloc(dw_len * 4);
1299 TRACE_RET(chip, STATUS_NOMEM);
1303 for (i = 0; i < len; i++) {
1304 mask[j] |= 0xFF << (offset * 8);
1305 data[j] |= buf[i] << (offset * 8);
1306 if (++offset == 4) {
1312 print_hex_dump_bytes(KBUILD_MODNAME ": ", DUMP_PREFIX_NONE, mask,
1314 print_hex_dump_bytes(KBUILD_MODNAME ": ", DUMP_PREFIX_NONE, data,
1317 for (i = 0; i < dw_len; i++) {
1318 retval = rtsx_write_cfg_dw(chip, func, aligned_addr + i * 4,
1320 if (retval != STATUS_SUCCESS) {
1323 TRACE_RET(chip, STATUS_FAIL);
1330 return STATUS_SUCCESS;
1333 int rtsx_read_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
1337 u16 offset = addr % 4;
1338 u16 aligned_addr = addr - offset;
1342 if ((len + offset) % 4)
1343 dw_len = (len + offset) / 4 + 1;
1345 dw_len = (len + offset) / 4;
1347 dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
1349 data = vmalloc(dw_len * 4);
1351 TRACE_RET(chip, STATUS_NOMEM);
1353 for (i = 0; i < dw_len; i++) {
1354 retval = rtsx_read_cfg_dw(chip, func, aligned_addr + i * 4,
1356 if (retval != STATUS_SUCCESS) {
1358 TRACE_RET(chip, STATUS_FAIL);
1365 for (i = 0; i < len; i++) {
1366 buf[i] = (u8)(data[j] >> (offset * 8));
1367 if (++offset == 4) {
1376 return STATUS_SUCCESS;
1379 int rtsx_write_phy_register(struct rtsx_chip *chip, u8 addr, u16 val)
1381 int i, finished = 0;
1384 RTSX_WRITE_REG(chip, PHYDATA0, 0xFF, (u8)val);
1385 RTSX_WRITE_REG(chip, PHYDATA1, 0xFF, (u8)(val >> 8));
1386 RTSX_WRITE_REG(chip, PHYADDR, 0xFF, addr);
1387 RTSX_WRITE_REG(chip, PHYRWCTL, 0xFF, 0x81);
1389 for (i = 0; i < 100000; i++) {
1390 RTSX_READ_REG(chip, PHYRWCTL, &tmp);
1391 if (!(tmp & 0x80)) {
1398 TRACE_RET(chip, STATUS_FAIL);
1400 return STATUS_SUCCESS;
1403 int rtsx_read_phy_register(struct rtsx_chip *chip, u8 addr, u16 *val)
1405 int i, finished = 0;
1409 RTSX_WRITE_REG(chip, PHYADDR, 0xFF, addr);
1410 RTSX_WRITE_REG(chip, PHYRWCTL, 0xFF, 0x80);
1412 for (i = 0; i < 100000; i++) {
1413 RTSX_READ_REG(chip, PHYRWCTL, &tmp);
1414 if (!(tmp & 0x80)) {
1421 TRACE_RET(chip, STATUS_FAIL);
1423 RTSX_READ_REG(chip, PHYDATA0, &tmp);
1425 RTSX_READ_REG(chip, PHYDATA1, &tmp);
1426 data |= (u16)tmp << 8;
1431 return STATUS_SUCCESS;
1434 int rtsx_read_efuse(struct rtsx_chip *chip, u8 addr, u8 *val)
1439 RTSX_WRITE_REG(chip, EFUSE_CTRL, 0xFF, 0x80|addr);
1441 for (i = 0; i < 100; i++) {
1442 RTSX_READ_REG(chip, EFUSE_CTRL, &data);
1449 TRACE_RET(chip, STATUS_TIMEDOUT);
1451 RTSX_READ_REG(chip, EFUSE_DATA, &data);
1455 return STATUS_SUCCESS;
1458 int rtsx_write_efuse(struct rtsx_chip *chip, u8 addr, u8 val)
1461 u8 data = 0, tmp = 0xFF;
1463 for (i = 0; i < 8; i++) {
1464 if (val & (u8)(1 << i))
1467 tmp &= (~(u8)(1 << i));
1468 dev_dbg(rtsx_dev(chip), "Write 0x%x to 0x%x\n", tmp, addr);
1470 RTSX_WRITE_REG(chip, EFUSE_DATA, 0xFF, tmp);
1471 RTSX_WRITE_REG(chip, EFUSE_CTRL, 0xFF, 0xA0|addr);
1473 for (j = 0; j < 100; j++) {
1474 RTSX_READ_REG(chip, EFUSE_CTRL, &data);
1481 TRACE_RET(chip, STATUS_TIMEDOUT);
1486 return STATUS_SUCCESS;
1489 int rtsx_clr_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
1494 retval = rtsx_read_phy_register(chip, reg, &value);
1495 if (retval != STATUS_SUCCESS)
1496 TRACE_RET(chip, STATUS_FAIL);
1498 if (value & (1 << bit)) {
1499 value &= ~(1 << bit);
1500 retval = rtsx_write_phy_register(chip, reg, value);
1501 if (retval != STATUS_SUCCESS)
1502 TRACE_RET(chip, STATUS_FAIL);
1505 return STATUS_SUCCESS;
1508 int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
1513 retval = rtsx_read_phy_register(chip, reg, &value);
1514 if (retval != STATUS_SUCCESS)
1515 TRACE_RET(chip, STATUS_FAIL);
1517 if (0 == (value & (1 << bit))) {
1518 value |= (1 << bit);
1519 retval = rtsx_write_phy_register(chip, reg, value);
1520 if (retval != STATUS_SUCCESS)
1521 TRACE_RET(chip, STATUS_FAIL);
1524 return STATUS_SUCCESS;
1527 int rtsx_check_link_ready(struct rtsx_chip *chip)
1531 RTSX_READ_REG(chip, IRQSTAT0, &val);
1533 dev_dbg(rtsx_dev(chip), "IRQSTAT0: 0x%x\n", val);
1534 if (val & LINK_RDY_INT) {
1535 dev_dbg(rtsx_dev(chip), "Delinked!\n");
1536 rtsx_write_register(chip, IRQSTAT0, LINK_RDY_INT, LINK_RDY_INT);
1540 return STATUS_SUCCESS;
1543 static void rtsx_handle_pm_dstate(struct rtsx_chip *chip, u8 dstate)
1547 dev_dbg(rtsx_dev(chip), "%04x set pm_dstate to %d\n",
1548 chip->product_id, dstate);
1550 if (CHK_SDIO_EXIST(chip)) {
1553 if (CHECK_PID(chip, 0x5288))
1558 rtsx_read_cfg_dw(chip, func_no, 0x84, &ultmp);
1559 dev_dbg(rtsx_dev(chip), "pm_dstate of function %d: 0x%x\n",
1560 (int)func_no, ultmp);
1561 rtsx_write_cfg_dw(chip, func_no, 0x84, 0xFF, dstate);
1564 rtsx_write_config_byte(chip, 0x44, dstate);
1565 rtsx_write_config_byte(chip, 0x45, 0);
1568 void rtsx_enter_L1(struct rtsx_chip *chip)
1570 rtsx_handle_pm_dstate(chip, 2);
1573 void rtsx_exit_L1(struct rtsx_chip *chip)
1575 rtsx_write_config_byte(chip, 0x44, 0);
1576 rtsx_write_config_byte(chip, 0x45, 0);
1579 void rtsx_enter_ss(struct rtsx_chip *chip)
1581 dev_dbg(rtsx_dev(chip), "Enter Selective Suspend State!\n");
1583 rtsx_write_register(chip, IRQSTAT0, LINK_RDY_INT, LINK_RDY_INT);
1585 if (chip->power_down_in_ss) {
1586 rtsx_power_off_card(chip);
1587 rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
1590 if (CHK_SDIO_EXIST(chip)) {
1591 if (CHECK_PID(chip, 0x5288))
1592 rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF00, 0x0100);
1594 rtsx_write_cfg_dw(chip, 1, 0xC0, 0xFF00, 0x0100);
1597 if (chip->auto_delink_en) {
1598 rtsx_write_register(chip, HOST_SLEEP_STATE, 0x01, 0x01);
1600 if (!chip->phy_debug_mode) {
1602 tmp = rtsx_readl(chip, RTSX_BIER);
1604 rtsx_writel(chip, RTSX_BIER, tmp);
1607 rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 0);
1610 rtsx_enter_L1(chip);
1612 RTSX_CLR_DELINK(chip);
1613 rtsx_set_stat(chip, RTSX_STAT_SS);
1616 void rtsx_exit_ss(struct rtsx_chip *chip)
1618 dev_dbg(rtsx_dev(chip), "Exit Selective Suspend State!\n");
1622 if (chip->power_down_in_ss) {
1623 rtsx_force_power_on(chip, SSC_PDCTL | OC_PDCTL);
1627 if (RTSX_TST_DELINK(chip)) {
1628 chip->need_reinit = SD_CARD | MS_CARD | XD_CARD;
1629 rtsx_reinit_cards(chip, 1);
1630 RTSX_CLR_DELINK(chip);
1631 } else if (chip->power_down_in_ss) {
1632 chip->need_reinit = SD_CARD | MS_CARD | XD_CARD;
1633 rtsx_reinit_cards(chip, 0);
1637 int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
1639 u32 status, int_enable;
1648 chip->ss_counter = 0;
1649 if (rtsx_get_stat(chip) == RTSX_STAT_SS) {
1652 rtsx_set_stat(chip, RTSX_STAT_RUN);
1656 int_enable = rtsx_readl(chip, RTSX_BIER);
1657 chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
1659 if (((chip->int_reg & int_enable) == 0) ||
1660 (chip->int_reg == 0xFFFFFFFF))
1663 status = chip->int_reg &= (int_enable | 0x7FFFFF);
1665 if (status & CARD_INT) {
1666 chip->auto_delink_cnt = 0;
1668 if (status & SD_INT) {
1669 if (status & SD_EXIST) {
1670 set_bit(SD_NR, &(chip->need_reset));
1672 set_bit(SD_NR, &(chip->need_release));
1673 chip->sd_reset_counter = 0;
1674 chip->sd_show_cnt = 0;
1675 clear_bit(SD_NR, &(chip->need_reset));
1678 /* If multi-luns, it's possible that
1679 when plugging/unplugging one card
1680 there is another card which still
1681 exists in the slot. In this case,
1682 all existed cards should be reset.
1684 if (exit_ss && (status & SD_EXIST))
1685 set_bit(SD_NR, &(chip->need_reinit));
1687 if (!CHECK_PID(chip, 0x5288) || CHECK_BARO_PKG(chip, QFN)) {
1688 if (status & XD_INT) {
1689 if (status & XD_EXIST) {
1690 set_bit(XD_NR, &(chip->need_reset));
1692 set_bit(XD_NR, &(chip->need_release));
1693 chip->xd_reset_counter = 0;
1694 chip->xd_show_cnt = 0;
1695 clear_bit(XD_NR, &(chip->need_reset));
1698 if (exit_ss && (status & XD_EXIST))
1699 set_bit(XD_NR, &(chip->need_reinit));
1702 if (status & MS_INT) {
1703 if (status & MS_EXIST) {
1704 set_bit(MS_NR, &(chip->need_reset));
1706 set_bit(MS_NR, &(chip->need_release));
1707 chip->ms_reset_counter = 0;
1708 chip->ms_show_cnt = 0;
1709 clear_bit(MS_NR, &(chip->need_reset));
1712 if (exit_ss && (status & MS_EXIST))
1713 set_bit(MS_NR, &(chip->need_reinit));
1718 chip->ocp_int = ocp_int & status;
1722 if (chip->int_reg & DATA_DONE_INT)
1723 chip->int_reg &= ~(u32)DATA_DONE_INT;
1726 return STATUS_SUCCESS;
1729 void rtsx_do_before_power_down(struct rtsx_chip *chip, int pm_stat)
1733 dev_dbg(rtsx_dev(chip), "%s, pm_stat = %d\n", __func__, pm_stat);
1735 rtsx_set_stat(chip, RTSX_STAT_SUSPEND);
1737 retval = rtsx_force_power_on(chip, SSC_PDCTL);
1738 if (retval != STATUS_SUCCESS)
1741 rtsx_release_cards(chip);
1742 rtsx_disable_bus_int(chip);
1743 turn_off_led(chip, LED_GPIO);
1745 #ifdef HW_AUTO_SWITCH_SD_BUS
1747 chip->sdio_in_charge = 1;
1748 if (CHECK_PID(chip, 0x5208)) {
1749 rtsx_write_register(chip, TLPTISTAT, 0x08, 0x08);
1750 /* Enable sdio_bus_auto_switch */
1751 rtsx_write_register(chip, 0xFE70, 0x80, 0x80);
1752 } else if (CHECK_PID(chip, 0x5288)) {
1753 rtsx_write_register(chip, TLPTISTAT, 0x08, 0x08);
1754 /* Enable sdio_bus_auto_switch */
1755 rtsx_write_register(chip, 0xFE5A, 0x08, 0x08);
1760 if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D)) {
1761 /* u_force_clkreq_0 */
1762 rtsx_write_register(chip, PETXCFG, 0x08, 0x08);
1765 if (pm_stat == PM_S1) {
1766 dev_dbg(rtsx_dev(chip), "Host enter S1\n");
1767 rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03,
1769 } else if (pm_stat == PM_S3) {
1770 if (chip->s3_pwr_off_delay > 0)
1771 wait_timeout(chip->s3_pwr_off_delay);
1773 dev_dbg(rtsx_dev(chip), "Host enter S3\n");
1774 rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03,
1778 if (chip->do_delink_before_power_down && chip->auto_delink_en)
1779 rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 2);
1781 rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
1785 chip->card_exist = 0;
1788 void rtsx_enable_aspm(struct rtsx_chip *chip)
1790 if (chip->aspm_l0s_l1_en && chip->dynamic_aspm) {
1791 if (!chip->aspm_enabled) {
1792 dev_dbg(rtsx_dev(chip), "Try to enable ASPM\n");
1793 chip->aspm_enabled = 1;
1795 if (chip->asic_code && CHECK_PID(chip, 0x5208))
1796 rtsx_write_phy_register(chip, 0x07, 0);
1797 if (CHECK_PID(chip, 0x5208)) {
1798 rtsx_write_register(chip, ASPM_FORCE_CTL, 0xF3,
1799 0x30 | chip->aspm_level[0]);
1801 rtsx_write_config_byte(chip, LCTLR,
1802 chip->aspm_l0s_l1_en);
1805 if (CHK_SDIO_EXIST(chip)) {
1806 u16 val = chip->aspm_l0s_l1_en | 0x0100;
1807 if (CHECK_PID(chip, 0x5288))
1808 rtsx_write_cfg_dw(chip, 2, 0xC0,
1811 rtsx_write_cfg_dw(chip, 1, 0xC0,
1820 void rtsx_disable_aspm(struct rtsx_chip *chip)
1822 if (CHECK_PID(chip, 0x5208))
1823 rtsx_monitor_aspm_config(chip);
1825 if (chip->aspm_l0s_l1_en && chip->dynamic_aspm) {
1826 if (chip->aspm_enabled) {
1827 dev_dbg(rtsx_dev(chip), "Try to disable ASPM\n");
1828 chip->aspm_enabled = 0;
1830 if (chip->asic_code && CHECK_PID(chip, 0x5208))
1831 rtsx_write_phy_register(chip, 0x07, 0x0129);
1832 if (CHECK_PID(chip, 0x5208))
1833 rtsx_write_register(chip, ASPM_FORCE_CTL,
1836 rtsx_write_config_byte(chip, LCTLR, 0x00);
1845 int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
1853 TRACE_RET(chip, STATUS_ERROR);
1856 reg_addr = PPBUF_BASE2;
1857 for (i = 0; i < buf_len/256; i++) {
1858 rtsx_init_cmd(chip);
1860 for (j = 0; j < 256; j++)
1861 rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
1863 retval = rtsx_send_cmd(chip, 0, 250);
1865 TRACE_RET(chip, STATUS_FAIL);
1867 memcpy(ptr, rtsx_get_cmd_data(chip), 256);
1872 rtsx_init_cmd(chip);
1874 for (j = 0; j < buf_len%256; j++)
1875 rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
1877 retval = rtsx_send_cmd(chip, 0, 250);
1879 TRACE_RET(chip, STATUS_FAIL);
1882 memcpy(ptr, rtsx_get_cmd_data(chip), buf_len%256);
1884 return STATUS_SUCCESS;
1887 int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
1895 TRACE_RET(chip, STATUS_ERROR);
1898 reg_addr = PPBUF_BASE2;
1899 for (i = 0; i < buf_len/256; i++) {
1900 rtsx_init_cmd(chip);
1902 for (j = 0; j < 256; j++) {
1903 rtsx_add_cmd(chip, WRITE_REG_CMD, reg_addr++, 0xFF,
1908 retval = rtsx_send_cmd(chip, 0, 250);
1910 TRACE_RET(chip, STATUS_FAIL);
1914 rtsx_init_cmd(chip);
1916 for (j = 0; j < buf_len%256; j++) {
1917 rtsx_add_cmd(chip, WRITE_REG_CMD, reg_addr++, 0xFF,
1922 retval = rtsx_send_cmd(chip, 0, 250);
1924 TRACE_RET(chip, STATUS_FAIL);
1927 return STATUS_SUCCESS;
1930 int rtsx_check_chip_exist(struct rtsx_chip *chip)
1932 if (rtsx_readl(chip, 0) == 0xFFFFFFFF)
1933 TRACE_RET(chip, STATUS_FAIL);
1935 return STATUS_SUCCESS;
1938 int rtsx_force_power_on(struct rtsx_chip *chip, u8 ctl)
1943 if (ctl & SSC_PDCTL)
1944 mask |= SSC_POWER_DOWN;
1947 if (ctl & OC_PDCTL) {
1948 mask |= SD_OC_POWER_DOWN;
1949 if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
1950 mask |= MS_OC_POWER_DOWN;
1955 retval = rtsx_write_register(chip, FPDCTL, mask, 0);
1956 if (retval != STATUS_SUCCESS)
1957 TRACE_RET(chip, STATUS_FAIL);
1959 if (CHECK_PID(chip, 0x5288))
1963 return STATUS_SUCCESS;
1966 int rtsx_force_power_down(struct rtsx_chip *chip, u8 ctl)
1969 u8 mask = 0, val = 0;
1971 if (ctl & SSC_PDCTL)
1972 mask |= SSC_POWER_DOWN;
1975 if (ctl & OC_PDCTL) {
1976 mask |= SD_OC_POWER_DOWN;
1977 if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
1978 mask |= MS_OC_POWER_DOWN;
1984 retval = rtsx_write_register(chip, FPDCTL, mask, val);
1985 if (retval != STATUS_SUCCESS)
1986 TRACE_RET(chip, STATUS_FAIL);
1989 return STATUS_SUCCESS;