drivers/misc/cardreader/rts5249.c

   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         struct pci_dev *pdev = pcr->pci;
  59         u32 reg;
  60
  61         pci_read_config_dword(pdev, PCR_SETTING_REG1, &reg);
  62         pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
  63
  64         if (!rtsx_vendor_setting_valid(reg)) {
  65                 pcr_dbg(pcr, "skip fetch vendor setting\n");
  66                 return;
  67         }
  68
  69         pcr->aspm_en = rtsx_reg_to_aspm(reg);
  70         pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
  71         pcr->card_drive_sel &= 0x3F;
  72         pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg);
  73
  74         pci_read_config_dword(pdev, PCR_SETTING_REG2, &reg);
  75         pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
  76
  77         if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A))
  78                 pcr->rtd3_en = rtsx_reg_to_rtd3_uhsii(reg);
  79
  80         if (rtsx_check_mmc_support(reg))
  81                 pcr->extra_caps |= EXTRA_CAPS_NO_MMC;
  82         pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
  83         if (rtsx_reg_check_reverse_socket(reg))
  84                 pcr->flags |= PCR_REVERSE_SOCKET;
  85 }
  86
  87 static void rts5249_init_from_cfg(struct rtsx_pcr *pcr)
  88 {
  89         struct pci_dev *pdev = pcr->pci;
  90         int l1ss;
  91         struct rtsx_cr_option *option = &(pcr->option);
  92         u32 lval;
  93
  94         l1ss = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_L1SS);
  95         if (!l1ss)
  96                 return;
  97
  98         pci_read_config_dword(pdev, l1ss + PCI_L1SS_CTL1, &lval);
  99
 100         if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A)) {
 101                 if (0 == (lval & 0x0F))
 102                         rtsx_pci_enable_oobs_polling(pcr);
 103                 else
 104                         rtsx_pci_disable_oobs_polling(pcr);
 105         }
 106
 107
 108         if (lval & PCI_L1SS_CTL1_ASPM_L1_1)
 109                 rtsx_set_dev_flag(pcr, ASPM_L1_1_EN);
 110
 111         if (lval & PCI_L1SS_CTL1_ASPM_L1_2)
 112                 rtsx_set_dev_flag(pcr, ASPM_L1_2_EN);
 113
 114         if (lval & PCI_L1SS_CTL1_PCIPM_L1_1)
 115                 rtsx_set_dev_flag(pcr, PM_L1_1_EN);
 116
 117         if (lval & PCI_L1SS_CTL1_PCIPM_L1_2)
 118                 rtsx_set_dev_flag(pcr, PM_L1_2_EN);
 119
 120         if (option->ltr_en) {
 121                 u16 val;
 122
 123                 pcie_capability_read_word(pdev, PCI_EXP_DEVCTL2, &val);
 124                 if (val & PCI_EXP_DEVCTL2_LTR_EN) {
 125                         option->ltr_enabled = true;
 126                         option->ltr_active = true;
 127                         rtsx_set_ltr_latency(pcr, option->ltr_active_latency);
 128                 } else {
 129                         option->ltr_enabled = false;
 130                 }
 131         }
 132 }
 133
 134 static int rts5249_init_from_hw(struct rtsx_pcr *pcr)
 135 {
 136         struct rtsx_cr_option *option = &(pcr->option);
 137
 138         if (rtsx_check_dev_flag(pcr, ASPM_L1_1_EN | ASPM_L1_2_EN
 139                                 | PM_L1_1_EN | PM_L1_2_EN))
 140                 option->force_clkreq_0 = false;
 141         else
 142                 option->force_clkreq_0 = true;
 143
 144         return 0;
 145 }
 146
 147 static void rts52xa_force_power_down(struct rtsx_pcr *pcr, u8 pm_state, bool runtime)
 148 {
 149         /* Set relink_time to 0 */
 150         rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, MASK_8_BIT_DEF, 0);
 151         rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, MASK_8_BIT_DEF, 0);
 152         rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3,
 153                                 RELINK_TIME_MASK, 0);
 154
 155         rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
 156                         D3_DELINK_MODE_EN, D3_DELINK_MODE_EN);
 157
 158         if (!runtime) {
 159                 rtsx_pci_write_register(pcr, RTS524A_AUTOLOAD_CFG1,
 160                                 CD_RESUME_EN_MASK, 0);
 161                 rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3, 0x01, 0x00);
 162                 rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL, 0x30, 0x20);
 163         }
 164
 165         rtsx_pci_write_register(pcr, FPDCTL, ALL_POWER_DOWN, ALL_POWER_DOWN);
 166 }
 167
 168 static void rts52xa_save_content_from_efuse(struct rtsx_pcr *pcr)
 169 {
 170         u8 cnt, sv;
 171         u16 j = 0;
 172         u8 tmp;
 173         u8 val;
 174         int i;
 175
 176         rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL,
 177                                 REG_EFUSE_BYPASS | REG_EFUSE_POR, REG_EFUSE_POR);
 178         udelay(1);
 179
 180         pcr_dbg(pcr, "Enable efuse por!");
 181         pcr_dbg(pcr, "save efuse to autoload");
 182
 183         rtsx_pci_write_register(pcr, RTS525A_EFUSE_ADD, REG_EFUSE_ADD_MASK, 0x00);
 184         rtsx_pci_write_register(pcr, RTS525A_EFUSE_CTL,
 185                                 REG_EFUSE_ENABLE | REG_EFUSE_MODE, REG_EFUSE_ENABLE);
 186         /* Wait transfer end */
 187         for (j = 0; j < 1024; j++) {
 188                 rtsx_pci_read_register(pcr, RTS525A_EFUSE_CTL, &tmp);
 189                 if ((tmp & 0x80) == 0)
 190                         break;
 191         }
 192         rtsx_pci_read_register(pcr, RTS525A_EFUSE_DATA, &val);
 193         cnt = val & 0x0F;
 194         sv = val & 0x10;
 195
 196         if (sv) {
 197                 for (i = 0; i < 4; i++) {
 198                         rtsx_pci_write_register(pcr, RTS525A_EFUSE_ADD,
 199                                 REG_EFUSE_ADD_MASK, 0x04 + i);
 200                         rtsx_pci_write_register(pcr, RTS525A_EFUSE_CTL,
 201                                 REG_EFUSE_ENABLE | REG_EFUSE_MODE, REG_EFUSE_ENABLE);
 202                         /* Wait transfer end */
 203                         for (j = 0; j < 1024; j++) {
 204                                 rtsx_pci_read_register(pcr, RTS525A_EFUSE_CTL, &tmp);
 205                                 if ((tmp & 0x80) == 0)
 206                                         break;
 207                         }
 208                         rtsx_pci_read_register(pcr, RTS525A_EFUSE_DATA, &val);
 209                         rtsx_pci_write_register(pcr, 0xFF04 + i, 0xFF, val);
 210                 }
 211         } else {
 212                 rtsx_pci_write_register(pcr, 0xFF04, 0xFF, (u8)PCI_VID(pcr));
 213                 rtsx_pci_write_register(pcr, 0xFF05, 0xFF, (u8)(PCI_VID(pcr) >> 8));
 214                 rtsx_pci_write_register(pcr, 0xFF06, 0xFF, (u8)PCI_PID(pcr));
 215                 rtsx_pci_write_register(pcr, 0xFF07, 0xFF, (u8)(PCI_PID(pcr) >> 8));
 216         }
 217
 218         for (i = 0; i < cnt * 4; i++) {
 219                 if (sv)
 220                         rtsx_pci_write_register(pcr, RTS525A_EFUSE_ADD,
 221                                 REG_EFUSE_ADD_MASK, 0x08 + i);
 222                 else
 223                         rtsx_pci_write_register(pcr, RTS525A_EFUSE_ADD,
 224                                 REG_EFUSE_ADD_MASK, 0x04 + i);
 225                 rtsx_pci_write_register(pcr, RTS525A_EFUSE_CTL,
 226                                 REG_EFUSE_ENABLE | REG_EFUSE_MODE, REG_EFUSE_ENABLE);
 227                 /* Wait transfer end */
 228                 for (j = 0; j < 1024; j++) {
 229                         rtsx_pci_read_register(pcr, RTS525A_EFUSE_CTL, &tmp);
 230                         if ((tmp & 0x80) == 0)
 231                                 break;
 232                 }
 233                 rtsx_pci_read_register(pcr, RTS525A_EFUSE_DATA, &val);
 234                 rtsx_pci_write_register(pcr, 0xFF08 + i, 0xFF, val);
 235         }
 236         rtsx_pci_write_register(pcr, 0xFF00, 0xFF, (cnt & 0x7F) | 0x80);
 237         rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL,
 238                 REG_EFUSE_BYPASS | REG_EFUSE_POR, REG_EFUSE_BYPASS);
 239         pcr_dbg(pcr, "Disable efuse por!");
 240 }
 241
 242 static void rts52xa_save_content_to_autoload_space(struct rtsx_pcr *pcr)
 243 {
 244         u8 val;
 245
 246         rtsx_pci_read_register(pcr, RESET_LOAD_REG, &val);
 247         if (val & 0x02) {
 248                 rtsx_pci_read_register(pcr, RTS525A_BIOS_CFG, &val);
 249                 if (val & RTS525A_LOAD_BIOS_FLAG) {
 250                         rtsx_pci_write_register(pcr, RTS525A_BIOS_CFG,
 251                                 RTS525A_LOAD_BIOS_FLAG, RTS525A_CLEAR_BIOS_FLAG);
 252
 253                         rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL,
 254                                 REG_EFUSE_POWER_MASK, REG_EFUSE_POWERON);
 255
 256                         pcr_dbg(pcr, "Power ON efuse!");
 257                         mdelay(1);
 258                         rts52xa_save_content_from_efuse(pcr);
 259                 } else {
 260                         rtsx_pci_read_register(pcr, RTS524A_PME_FORCE_CTL, &val);
 261                         if (!(val & 0x08))
 262                                 rts52xa_save_content_from_efuse(pcr);
 263                 }
 264         } else {
 265                 pcr_dbg(pcr, "Load from autoload");
 266                 rtsx_pci_write_register(pcr, 0xFF00, 0xFF, 0x80);
 267                 rtsx_pci_write_register(pcr, 0xFF04, 0xFF, (u8)PCI_VID(pcr));
 268                 rtsx_pci_write_register(pcr, 0xFF05, 0xFF, (u8)(PCI_VID(pcr) >> 8));
 269                 rtsx_pci_write_register(pcr, 0xFF06, 0xFF, (u8)PCI_PID(pcr));
 270                 rtsx_pci_write_register(pcr, 0xFF07, 0xFF, (u8)(PCI_PID(pcr) >> 8));
 271         }
 272 }
 273
 274 static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
 275 {
 276         struct rtsx_cr_option *option = &(pcr->option);
 277
 278         rts5249_init_from_cfg(pcr);
 279         rts5249_init_from_hw(pcr);
 280
 281         rtsx_pci_init_cmd(pcr);
 282
 283         if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A))
 284                 rts52xa_save_content_to_autoload_space(pcr);
 285
 286         /* Rest L1SUB Config */
 287         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG3, 0xFF, 0x00);
 288         /* Configure GPIO as output */
 289         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
 290         /* Reset ASPM state to default value */
 291         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0);
 292         /* Switch LDO3318 source from DV33 to card_3v3 */
 293         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
 294         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
 295         /* LED shine disabled, set initial shine cycle period */
 296         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
 297         /* Configure driving */
 298         rts5249_fill_driving(pcr, OUTPUT_3V3);
 299         if (pcr->flags & PCR_REVERSE_SOCKET)
 300                 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0xB0);
 301         else
 302                 rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0x80);
 303
 304         rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
 305
 306         if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A)) {
 307                 rtsx_pci_write_register(pcr, REG_VREF, PWD_SUSPND_EN, PWD_SUSPND_EN);
 308                 rtsx_pci_write_register(pcr, RTS524A_AUTOLOAD_CFG1,
 309                         CD_RESUME_EN_MASK, CD_RESUME_EN_MASK);
 310         }
 311
 312         if (pcr->rtd3_en) {
 313                 if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A)) {
 314                         rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3, 0x01, 0x01);
 315                         rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL, 0x30, 0x30);
 316                 } else {
 317                         rtsx_pci_write_register(pcr, PM_CTRL3, 0x01, 0x01);
 318                         rtsx_pci_write_register(pcr, PME_FORCE_CTL, 0xFF, 0x33);
 319                 }
 320         } else {
 321                 if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A)) {
 322                         rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3, 0x01, 0x00);
 323                         rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL, 0x30, 0x20);
 324                 } else {
 325                         rtsx_pci_write_register(pcr, PME_FORCE_CTL, 0xFF, 0x30);
 326                         rtsx_pci_write_register(pcr, PM_CTRL3, 0x01, 0x00);
 327                 }
 328         }
 329
 330
 331         /*
 332          * If u_force_clkreq_0 is enabled, CLKREQ# PIN will be forced
 333          * to drive low, and we forcibly request clock.
 334          */
 335         if (option->force_clkreq_0)
 336                 rtsx_pci_write_register(pcr, PETXCFG,
 337                         FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_LOW);
 338         else
 339                 rtsx_pci_write_register(pcr, PETXCFG,
 340                         FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
 341
 342         rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x10, 0x00);
 343         if (CHK_PCI_PID(pcr, PID_524A) || CHK_PCI_PID(pcr, PID_525A)) {
 344                 rtsx_pci_write_register(pcr, RTS524A_PME_FORCE_CTL,
 345                                 REG_EFUSE_POWER_MASK, REG_EFUSE_POWEROFF);
 346                 pcr_dbg(pcr, "Power OFF efuse!");
 347         }
 348
 349         return 0;
 350 }
 351
 352 static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
 353 {
 354         int err;
 355
 356         err = rtsx_pci_write_register(pcr, PM_CTRL3, D3_DELINK_MODE_EN, 0x00);
 357         if (err < 0)
 358                 return err;
 359
 360         err = rtsx_pci_write_phy_register(pcr, PHY_REV,
 361                         PHY_REV_RESV | PHY_REV_RXIDLE_LATCHED |
 362                         PHY_REV_P1_EN | PHY_REV_RXIDLE_EN |
 363                         PHY_REV_CLKREQ_TX_EN | PHY_REV_RX_PWST |
 364                         PHY_REV_CLKREQ_DT_1_0 | PHY_REV_STOP_CLKRD |
 365                         PHY_REV_STOP_CLKWR);
 366         if (err < 0)
 367                 return err;
 368
 369         msleep(1);
 370
 371         err = rtsx_pci_write_phy_register(pcr, PHY_BPCR,
 372                         PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
 373                         PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);
 374         if (err < 0)
 375                 return err;
 376
 377         err = rtsx_pci_write_phy_register(pcr, PHY_PCR,
 378                         PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
 379                         PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
 380                         PHY_PCR_RSSI_EN | PHY_PCR_RX10K);
 381         if (err < 0)
 382                 return err;
 383
 384         err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
 385                         PHY_RCR2_EMPHASE_EN | PHY_RCR2_NADJR |
 386                         PHY_RCR2_CDR_SR_2 | PHY_RCR2_FREQSEL_12 |
 387                         PHY_RCR2_CDR_SC_12P | PHY_RCR2_CALIB_LATE);
 388         if (err < 0)
 389                 return err;
 390
 391         err = rtsx_pci_write_phy_register(pcr, PHY_FLD4,
 392                         PHY_FLD4_FLDEN_SEL | PHY_FLD4_REQ_REF |
 393                         PHY_FLD4_RXAMP_OFF | PHY_FLD4_REQ_ADDA |
 394                         PHY_FLD4_BER_COUNT | PHY_FLD4_BER_TIMER |
 395                         PHY_FLD4_BER_CHK_EN);
 396         if (err < 0)
 397                 return err;
 398         err = rtsx_pci_write_phy_register(pcr, PHY_RDR,
 399                         PHY_RDR_RXDSEL_1_9 | PHY_SSC_AUTO_PWD);
 400         if (err < 0)
 401                 return err;
 402         err = rtsx_pci_write_phy_register(pcr, PHY_RCR1,
 403                         PHY_RCR1_ADP_TIME_4 | PHY_RCR1_VCO_COARSE);
 404         if (err < 0)
 405                 return err;
 406         err = rtsx_pci_write_phy_register(pcr, PHY_FLD3,
 407                         PHY_FLD3_TIMER_4 | PHY_FLD3_TIMER_6 |
 408                         PHY_FLD3_RXDELINK);
 409         if (err < 0)
 410                 return err;
 411
 412         return rtsx_pci_write_phy_register(pcr, PHY_TUNE,
 413                         PHY_TUNE_TUNEREF_1_0 | PHY_TUNE_VBGSEL_1252 |
 414                         PHY_TUNE_SDBUS_33 | PHY_TUNE_TUNED18 |
 415                         PHY_TUNE_TUNED12 | PHY_TUNE_TUNEA12);
 416 }
 417
 418 static int rtsx_base_turn_on_led(struct rtsx_pcr *pcr)
 419 {
 420         return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
 421 }
 422
 423 static int rtsx_base_turn_off_led(struct rtsx_pcr *pcr)
 424 {
 425         return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
 426 }
 427
 428 static int rtsx_base_enable_auto_blink(struct rtsx_pcr *pcr)
 429 {
 430         return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
 431 }
 432
 433 static int rtsx_base_disable_auto_blink(struct rtsx_pcr *pcr)
 434 {
 435         return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
 436 }
 437
 438 static int rtsx_base_card_power_on(struct rtsx_pcr *pcr, int card)
 439 {
 440         int err;
 441         struct rtsx_cr_option *option = &pcr->option;
 442
 443         if (option->ocp_en)
 444                 rtsx_pci_enable_ocp(pcr);
 445
 446         rtsx_pci_init_cmd(pcr);
 447         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
 448                         SD_POWER_MASK, SD_VCC_PARTIAL_POWER_ON);
 449         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
 450                         LDO3318_PWR_MASK, 0x02);
 451         err = rtsx_pci_send_cmd(pcr, 100);
 452         if (err < 0)
 453                 return err;
 454
 455         msleep(5);
 456
 457         rtsx_pci_init_cmd(pcr);
 458         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
 459                         SD_POWER_MASK, SD_VCC_POWER_ON);
 460         rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
 461                         LDO3318_PWR_MASK, 0x06);
 462         return rtsx_pci_send_cmd(pcr, 100);
 463 }
 464
 465 static int rtsx_base_card_power_off(struct rtsx_pcr *pcr, int card)
 466 {
 467         struct rtsx_cr_option *option = &pcr->option;
 468
 469         if (option->ocp_en)
 470                 rtsx_pci_disable_ocp(pcr);
 471
 472         rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK, SD_POWER_OFF);
 473
 474         rtsx_pci_write_register(pcr, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0x00);
 475         return 0;
 476 }
 477
 478 static int rtsx_base_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
 479 {
 480         int err;
 481         u16 append;
 482
 483         switch (voltage) {
 484         case OUTPUT_3V3:
 485                 err = rtsx_pci_update_phy(pcr, PHY_TUNE, PHY_TUNE_VOLTAGE_MASK,
 486                         PHY_TUNE_VOLTAGE_3V3);
 487                 if (err < 0)
 488                         return err;
 489                 break;
 490         case OUTPUT_1V8:
 491                 append = PHY_TUNE_D18_1V8;
 492                 if (CHK_PCI_PID(pcr, 0x5249)) {
 493                         err = rtsx_pci_update_phy(pcr, PHY_BACR,
 494                                 PHY_BACR_BASIC_MASK, 0);
 495                         if (err < 0)
 496                                 return err;
 497                         append = PHY_TUNE_D18_1V7;
 498                 }
 499
 500                 err = rtsx_pci_update_phy(pcr, PHY_TUNE, PHY_TUNE_VOLTAGE_MASK,
 501                         append);
 502                 if (err < 0)
 503                         return err;
 504                 break;
 505         default:
 506                 pcr_dbg(pcr, "unknown output voltage %d\n", voltage);
 507                 return -EINVAL;
 508         }
 509
 510         /* set pad drive */
 511         rtsx_pci_init_cmd(pcr);
 512         rts5249_fill_driving(pcr, voltage);
 513         return rtsx_pci_send_cmd(pcr, 100);
 514 }
 515
 516 static const struct pcr_ops rts5249_pcr_ops = {
 517         .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
 518         .extra_init_hw = rts5249_extra_init_hw,
 519         .optimize_phy = rts5249_optimize_phy,
 520         .turn_on_led = rtsx_base_turn_on_led,
 521         .turn_off_led = rtsx_base_turn_off_led,
 522         .enable_auto_blink = rtsx_base_enable_auto_blink,
 523         .disable_auto_blink = rtsx_base_disable_auto_blink,
 524         .card_power_on = rtsx_base_card_power_on,
 525         .card_power_off = rtsx_base_card_power_off,
 526         .switch_output_voltage = rtsx_base_switch_output_voltage,
 527 };
 528
 529 /* SD Pull Control Enable:
 530  *     SD_DAT[3:0] ==> pull up
 531  *     SD_CD       ==> pull up
 532  *     SD_WP       ==> pull up
 533  *     SD_CMD      ==> pull up
 534  *     SD_CLK      ==> pull down
 535  */
 536 static const u32 rts5249_sd_pull_ctl_enable_tbl[] = {
 537         RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
 538         RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
 539         RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
 540         RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA),
 541         0,
 542 };
 543
 544 /* SD Pull Control Disable:
 545  *     SD_DAT[3:0] ==> pull down
 546  *     SD_CD       ==> pull up
 547  *     SD_WP       ==> pull down
 548  *     SD_CMD      ==> pull down
 549  *     SD_CLK      ==> pull down
 550  */
 551 static const u32 rts5249_sd_pull_ctl_disable_tbl[] = {
 552         RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
 553         RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 554         RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
 555         RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
 556         0,
 557 };
 558
 559 /* MS Pull Control Enable:
 560  *     MS CD       ==> pull up
 561  *     others      ==> pull down
 562  */
 563 static const u32 rts5249_ms_pull_ctl_enable_tbl[] = {
 564         RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
 565         RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
 566         RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
 567         0,
 568 };
 569
 570 /* MS Pull Control Disable:
 571  *     MS CD       ==> pull up
 572  *     others      ==> pull down
 573  */
 574 static const u32 rts5249_ms_pull_ctl_disable_tbl[] = {
 575         RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
 576         RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
 577         RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
 578         0,
 579 };
 580
 581 void rts5249_init_params(struct rtsx_pcr *pcr)
 582 {
 583         struct rtsx_cr_option *option = &(pcr->option);
 584
 585         pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
 586         pcr->num_slots = 2;
 587         pcr->ops = &rts5249_pcr_ops;
 588
 589         pcr->flags = 0;
 590         pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
 591         pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
 592         pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
 593         pcr->aspm_en = ASPM_L1_EN;
 594         pcr->aspm_mode = ASPM_MODE_CFG;
 595         pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
 596         pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
 597
 598         pcr->ic_version = rts5249_get_ic_version(pcr);
 599         pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl;
 600         pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl;
 601         pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl;
 602         pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl;
 603
 604         pcr->reg_pm_ctrl3 = PM_CTRL3;
 605
 606         option->dev_flags = (LTR_L1SS_PWR_GATE_CHECK_CARD_EN
 607                                 | LTR_L1SS_PWR_GATE_EN);
 608         option->ltr_en = true;
 609
 610         /* Init latency of active, idle, L1OFF to 60us, 300us, 3ms */
 611         option->ltr_active_latency = LTR_ACTIVE_LATENCY_DEF;
 612         option->ltr_idle_latency = LTR_IDLE_LATENCY_DEF;
 613         option->ltr_l1off_latency = LTR_L1OFF_LATENCY_DEF;
 614         option->l1_snooze_delay = L1_SNOOZE_DELAY_DEF;
 615         option->ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5249_DEF;
 616         option->ltr_l1off_snooze_sspwrgate =
 617                 LTR_L1OFF_SNOOZE_SSPWRGATE_5249_DEF;
 618 }
 619
 620 static int rts524a_write_phy(struct rtsx_pcr *pcr, u8 addr, u16 val)
 621 {
 622         addr = addr & 0x80 ? (addr & 0x7F) | 0x40 : addr;
 623
 624         return __rtsx_pci_write_phy_register(pcr, addr, val);
 625 }
 626
 627 static int rts524a_read_phy(struct rtsx_pcr *pcr, u8 addr, u16 *val)
 628 {
 629         addr = addr & 0x80 ? (addr & 0x7F) | 0x40 : addr;
 630
 631         return __rtsx_pci_read_phy_register(pcr, addr, val);
 632 }
 633
 634 static int rts524a_optimize_phy(struct rtsx_pcr *pcr)
 635 {
 636         int err;
 637
 638         err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
 639                 D3_DELINK_MODE_EN, 0x00);
 640         if (err < 0)
 641                 return err;
 642
 643         rtsx_pci_write_phy_register(pcr, PHY_PCR,
 644                 PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
 645                 PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 | PHY_PCR_RSSI_EN);
 646         rtsx_pci_write_phy_register(pcr, PHY_SSCCR3,
 647                 PHY_SSCCR3_STEP_IN | PHY_SSCCR3_CHECK_DELAY);
 648
 649         if (is_version(pcr, 0x524A, IC_VER_A)) {
 650                 rtsx_pci_write_phy_register(pcr, PHY_SSCCR3,
 651                         PHY_SSCCR3_STEP_IN | PHY_SSCCR3_CHECK_DELAY);
 652                 rtsx_pci_write_phy_register(pcr, PHY_SSCCR2,
 653                         PHY_SSCCR2_PLL_NCODE | PHY_SSCCR2_TIME0 |
 654                         PHY_SSCCR2_TIME2_WIDTH);
 655                 rtsx_pci_write_phy_register(pcr, PHY_ANA1A,
 656                         PHY_ANA1A_TXR_LOOPBACK | PHY_ANA1A_RXT_BIST |
 657                         PHY_ANA1A_TXR_BIST | PHY_ANA1A_REV);
 658                 rtsx_pci_write_phy_register(pcr, PHY_ANA1D,
 659                         PHY_ANA1D_DEBUG_ADDR);
 660                 rtsx_pci_write_phy_register(pcr, PHY_DIG1E,
 661                         PHY_DIG1E_REV | PHY_DIG1E_D0_X_D1 |
 662                         PHY_DIG1E_RX_ON_HOST | PHY_DIG1E_RCLK_REF_HOST |
 663                         PHY_DIG1E_RCLK_TX_EN_KEEP |
 664                         PHY_DIG1E_RCLK_TX_TERM_KEEP |
 665                         PHY_DIG1E_RCLK_RX_EIDLE_ON | PHY_DIG1E_TX_TERM_KEEP |
 666                         PHY_DIG1E_RX_TERM_KEEP | PHY_DIG1E_TX_EN_KEEP |
 667                         PHY_DIG1E_RX_EN_KEEP);
 668         }
 669
 670         rtsx_pci_write_phy_register(pcr, PHY_ANA08,
 671                 PHY_ANA08_RX_EQ_DCGAIN | PHY_ANA08_SEL_RX_EN |
 672                 PHY_ANA08_RX_EQ_VAL | PHY_ANA08_SCP | PHY_ANA08_SEL_IPI);
 673
 674         return 0;
 675 }
 676
 677 static int rts524a_extra_init_hw(struct rtsx_pcr *pcr)
 678 {
 679         rts5249_extra_init_hw(pcr);
 680
 681         rtsx_pci_write_register(pcr, FUNC_FORCE_CTL,
 682                 FORCE_ASPM_L1_EN, FORCE_ASPM_L1_EN);
 683         rtsx_pci_write_register(pcr, PM_EVENT_DEBUG, PME_DEBUG_0, PME_DEBUG_0);
 684         rtsx_pci_write_register(pcr, LDO_VCC_CFG1, LDO_VCC_LMT_EN,
 685                 LDO_VCC_LMT_EN);
 686         rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
 687         if (is_version(pcr, 0x524A, IC_VER_A)) {
 688                 rtsx_pci_write_register(pcr, LDO_DV18_CFG,
 689                         LDO_DV18_SR_MASK, LDO_DV18_SR_DF);
 690                 rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
 691                         LDO_VCC_REF_TUNE_MASK, LDO_VCC_REF_1V2);
 692                 rtsx_pci_write_register(pcr, LDO_VIO_CFG,
 693                         LDO_VIO_REF_TUNE_MASK, LDO_VIO_REF_1V2);
 694                 rtsx_pci_write_register(pcr, LDO_VIO_CFG,
 695                         LDO_VIO_SR_MASK, LDO_VIO_SR_DF);
 696                 rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
 697                         LDO_REF12_TUNE_MASK, LDO_REF12_TUNE_DF);
 698                 rtsx_pci_write_register(pcr, SD40_LDO_CTL1,
 699                         SD40_VIO_TUNE_MASK, SD40_VIO_TUNE_1V7);
 700         }
 701
 702         return 0;
 703 }
 704
 705 static void rts5250_set_l1off_cfg_sub_d0(struct rtsx_pcr *pcr, int active)
 706 {
 707         struct rtsx_cr_option *option = &(pcr->option);
 708
 709         u32 interrupt = rtsx_pci_readl(pcr, RTSX_BIPR);
 710         int card_exist = (interrupt & SD_EXIST) | (interrupt & MS_EXIST);
 711         int aspm_L1_1, aspm_L1_2;
 712         u8 val = 0;
 713
 714         aspm_L1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN);
 715         aspm_L1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN);
 716
 717         if (active) {
 718                 /* Run, latency: 60us */
 719                 if (aspm_L1_1)
 720                         val = option->ltr_l1off_snooze_sspwrgate;
 721         } else {
 722                 /* L1off, latency: 300us */
 723                 if (aspm_L1_2)
 724                         val = option->ltr_l1off_sspwrgate;
 725         }
 726
 727         if (aspm_L1_1 || aspm_L1_2) {
 728                 if (rtsx_check_dev_flag(pcr,
 729                                         LTR_L1SS_PWR_GATE_CHECK_CARD_EN)) {
 730                         if (card_exist)
 731                                 val &= ~L1OFF_MBIAS2_EN_5250;
 732                         else
 733                                 val |= L1OFF_MBIAS2_EN_5250;
 734                 }
 735         }
 736         rtsx_set_l1off_sub(pcr, val);
 737 }
 738
 739 static const struct pcr_ops rts524a_pcr_ops = {
 740         .write_phy = rts524a_write_phy,
 741         .read_phy = rts524a_read_phy,
 742         .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
 743         .extra_init_hw = rts524a_extra_init_hw,
 744         .optimize_phy = rts524a_optimize_phy,
 745         .turn_on_led = rtsx_base_turn_on_led,
 746         .turn_off_led = rtsx_base_turn_off_led,
 747         .enable_auto_blink = rtsx_base_enable_auto_blink,
 748         .disable_auto_blink = rtsx_base_disable_auto_blink,
 749         .card_power_on = rtsx_base_card_power_on,
 750         .card_power_off = rtsx_base_card_power_off,
 751         .switch_output_voltage = rtsx_base_switch_output_voltage,
 752         .force_power_down = rts52xa_force_power_down,
 753         .set_l1off_cfg_sub_d0 = rts5250_set_l1off_cfg_sub_d0,
 754 };
 755
 756 void rts524a_init_params(struct rtsx_pcr *pcr)
 757 {
 758         rts5249_init_params(pcr);
 759         pcr->aspm_mode = ASPM_MODE_REG;
 760         pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 29, 11);
 761         pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
 762         pcr->option.ltr_l1off_snooze_sspwrgate =
 763                 LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
 764
 765         pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
 766         pcr->ops = &rts524a_pcr_ops;
 767
 768         pcr->option.ocp_en = 1;
 769         if (pcr->option.ocp_en)
 770                 pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
 771         pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
 772         pcr->option.sd_800mA_ocp_thd = RTS524A_OCP_THD_800;
 773
 774 }
 775
 776 static int rts525a_card_power_on(struct rtsx_pcr *pcr, int card)
 777 {
 778         rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
 779                 LDO_VCC_TUNE_MASK, LDO_VCC_3V3);
 780         return rtsx_base_card_power_on(pcr, card);
 781 }
 782
 783 static int rts525a_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
 784 {
 785         switch (voltage) {
 786         case OUTPUT_3V3:
 787                 rtsx_pci_write_register(pcr, LDO_CONFIG2,
 788                         LDO_D3318_MASK, LDO_D3318_33V);
 789                 rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8, 0);
 790                 break;
 791         case OUTPUT_1V8:
 792                 rtsx_pci_write_register(pcr, LDO_CONFIG2,
 793                         LDO_D3318_MASK, LDO_D3318_18V);
 794                 rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8,
 795                         SD_IO_USING_1V8);
 796                 break;
 797         default:
 798                 return -EINVAL;
 799         }
 800
 801         rtsx_pci_init_cmd(pcr);
 802         rts5249_fill_driving(pcr, voltage);
 803         return rtsx_pci_send_cmd(pcr, 100);
 804 }
 805
 806 static int rts525a_optimize_phy(struct rtsx_pcr *pcr)
 807 {
 808         int err;
 809
 810         err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
 811                 D3_DELINK_MODE_EN, 0x00);
 812         if (err < 0)
 813                 return err;
 814
 815         rtsx_pci_write_phy_register(pcr, _PHY_FLD0,
 816                 _PHY_FLD0_CLK_REQ_20C | _PHY_FLD0_RX_IDLE_EN |
 817                 _PHY_FLD0_BIT_ERR_RSTN | _PHY_FLD0_BER_COUNT |
 818                 _PHY_FLD0_BER_TIMER | _PHY_FLD0_CHECK_EN);
 819
 820         rtsx_pci_write_phy_register(pcr, _PHY_ANA03,
 821                 _PHY_ANA03_TIMER_MAX | _PHY_ANA03_OOBS_DEB_EN |
 822                 _PHY_CMU_DEBUG_EN);
 823
 824         if (is_version(pcr, 0x525A, IC_VER_A))
 825                 rtsx_pci_write_phy_register(pcr, _PHY_REV0,
 826                         _PHY_REV0_FILTER_OUT | _PHY_REV0_CDR_BYPASS_PFD |
 827                         _PHY_REV0_CDR_RX_IDLE_BYPASS);
 828
 829         return 0;
 830 }
 831
 832 static int rts525a_extra_init_hw(struct rtsx_pcr *pcr)
 833 {
 834         rts5249_extra_init_hw(pcr);
 835
 836         rtsx_pci_write_register(pcr, RTS5250_CLK_CFG3, RTS525A_CFG_MEM_PD, RTS525A_CFG_MEM_PD);
 837
 838         rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
 839         if (is_version(pcr, 0x525A, IC_VER_A)) {
 840                 rtsx_pci_write_register(pcr, L1SUB_CONFIG2,
 841                         L1SUB_AUTO_CFG, L1SUB_AUTO_CFG);
 842                 rtsx_pci_write_register(pcr, RREF_CFG,
 843                         RREF_VBGSEL_MASK, RREF_VBGSEL_1V25);
 844                 rtsx_pci_write_register(pcr, LDO_VIO_CFG,
 845                         LDO_VIO_TUNE_MASK, LDO_VIO_1V7);
 846                 rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
 847                         LDO_D12_TUNE_MASK, LDO_D12_TUNE_DF);
 848                 rtsx_pci_write_register(pcr, LDO_AV12S_CFG,
 849                         LDO_AV12S_TUNE_MASK, LDO_AV12S_TUNE_DF);
 850                 rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
 851                         LDO_VCC_LMTVTH_MASK, LDO_VCC_LMTVTH_2A);
 852                 rtsx_pci_write_register(pcr, OOBS_CONFIG,
 853                         OOBS_AUTOK_DIS | OOBS_VAL_MASK, 0x89);
 854         }
 855
 856         return 0;
 857 }
 858
 859 static const struct pcr_ops rts525a_pcr_ops = {
 860         .fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
 861         .extra_init_hw = rts525a_extra_init_hw,
 862         .optimize_phy = rts525a_optimize_phy,
 863         .turn_on_led = rtsx_base_turn_on_led,
 864         .turn_off_led = rtsx_base_turn_off_led,
 865         .enable_auto_blink = rtsx_base_enable_auto_blink,
 866         .disable_auto_blink = rtsx_base_disable_auto_blink,
 867         .card_power_on = rts525a_card_power_on,
 868         .card_power_off = rtsx_base_card_power_off,
 869         .switch_output_voltage = rts525a_switch_output_voltage,
 870         .force_power_down = rts52xa_force_power_down,
 871         .set_l1off_cfg_sub_d0 = rts5250_set_l1off_cfg_sub_d0,
 872 };
 873
 874 void rts525a_init_params(struct rtsx_pcr *pcr)
 875 {
 876         rts5249_init_params(pcr);
 877         pcr->aspm_mode = ASPM_MODE_REG;
 878         pcr->tx_initial_phase = SET_CLOCK_PHASE(25, 29, 11);
 879         pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
 880         pcr->option.ltr_l1off_snooze_sspwrgate =
 881                 LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
 882
 883         pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
 884         pcr->ops = &rts525a_pcr_ops;
 885
 886         pcr->option.ocp_en = 1;
 887         if (pcr->option.ocp_en)
 888                 pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
 889         pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
 890         pcr->option.sd_800mA_ocp_thd = RTS525A_OCP_THD_800;
 891 }