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linux-sg2042/drivers/misc/cardreader/rts5249.c

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// SPDX-License-Identifier: GPL-2.0-or-later
/* Driver for Realtek PCI-Express card reader
*
* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
*
* Author:
* Wei WANG <wei_wang@realsil.com.cn>
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/rtsx_pci.h>
#include "rtsx_pcr.h"
static u8 rts5249_get_ic_version(struct rtsx_pcr *pcr)
{
u8 val;
rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
return val & 0x0F;
}
static void rts5249_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
{
u8 driving_3v3[4][3] = {
{0x11, 0x11, 0x18},
{0x55, 0x55, 0x5C},
{0xFF, 0xFF, 0xFF},
{0x96, 0x96, 0x96},
};
u8 driving_1v8[4][3] = {
{0xC4, 0xC4, 0xC4},
{0x3C, 0x3C, 0x3C},
{0xFE, 0xFE, 0xFE},
{0xB3, 0xB3, 0xB3},
};
u8 (*driving)[3], drive_sel;
if (voltage == OUTPUT_3V3) {
driving = driving_3v3;
drive_sel = pcr->sd30_drive_sel_3v3;
} else {
driving = driving_1v8;
drive_sel = pcr->sd30_drive_sel_1v8;
}
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
0xFF, driving[drive_sel][0]);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
0xFF, driving[drive_sel][1]);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
0xFF, driving[drive_sel][2]);
}
static void rtsx_base_fetch_vendor_settings(struct rtsx_pcr *pcr)
{
u32 reg;
rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg);
pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
if (!rtsx_vendor_setting_valid(reg)) {
pcr_dbg(pcr, "skip fetch vendor setting\n");
return;
}
pcr->aspm_en = rtsx_reg_to_aspm(reg);
pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
pcr->card_drive_sel &= 0x3F;
pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg);
rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, &reg);
pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
if (rtsx_reg_check_reverse_socket(reg))
pcr->flags |= PCR_REVERSE_SOCKET;
}
static void rtsx_base_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
{
/* Set relink_time to 0 */
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
if (pm_state == HOST_ENTER_S3)
rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3,
D3_DELINK_MODE_EN, D3_DELINK_MODE_EN);
rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
}
static void rts5249_init_from_cfg(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &(pcr->option);
u32 lval;
if (CHK_PCI_PID(pcr, PID_524A))
rtsx_pci_read_config_dword(pcr,
PCR_ASPM_SETTING_REG1, &lval);
else
rtsx_pci_read_config_dword(pcr,
PCR_ASPM_SETTING_REG2, &lval);
if (lval & ASPM_L1_1_EN_MASK)
rtsx_set_dev_flag(pcr, ASPM_L1_1_EN);
if (lval & ASPM_L1_2_EN_MASK)
rtsx_set_dev_flag(pcr, ASPM_L1_2_EN);
if (lval & PM_L1_1_EN_MASK)
rtsx_set_dev_flag(pcr, PM_L1_1_EN);
if (lval & PM_L1_2_EN_MASK)
rtsx_set_dev_flag(pcr, PM_L1_2_EN);
if (option->ltr_en) {
u16 val;
pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &val);
if (val & PCI_EXP_DEVCTL2_LTR_EN) {
option->ltr_enabled = true;
option->ltr_active = true;
rtsx_set_ltr_latency(pcr, option->ltr_active_latency);
} else {
option->ltr_enabled = false;
}
}
}
static int rts5249_init_from_hw(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &(pcr->option);
if (rtsx_check_dev_flag(pcr, ASPM_L1_1_EN | ASPM_L1_2_EN
| PM_L1_1_EN | PM_L1_2_EN))
option->force_clkreq_0 = false;
else
option->force_clkreq_0 = true;
return 0;
}
static int rts5249_extra_init_hw(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &(pcr->option);
rts5249_init_from_cfg(pcr);
rts5249_init_from_hw(pcr);
rtsx_pci_init_cmd(pcr);
/* Rest L1SUB Config */
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG3, 0xFF, 0x00);
/* Configure GPIO as output */
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
/* Reset ASPM state to default value */
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0);
/* Switch LDO3318 source from DV33 to card_3v3 */
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
/* LED shine disabled, set initial shine cycle period */
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
/* Configure driving */
rts5249_fill_driving(pcr, OUTPUT_3V3);
if (pcr->flags & PCR_REVERSE_SOCKET)
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0xB0);
else
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0x80);
/*
* If u_force_clkreq_0 is enabled, CLKREQ# PIN will be forced
* to drive low, and we forcibly request clock.
*/
if (option->force_clkreq_0)
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_LOW);
else
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
return rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
}
static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
{
int err;
err = rtsx_pci_write_register(pcr, PM_CTRL3, D3_DELINK_MODE_EN, 0x00);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_REV,
PHY_REV_RESV | PHY_REV_RXIDLE_LATCHED |
PHY_REV_P1_EN | PHY_REV_RXIDLE_EN |
PHY_REV_CLKREQ_TX_EN | PHY_REV_RX_PWST |
PHY_REV_CLKREQ_DT_1_0 | PHY_REV_STOP_CLKRD |
PHY_REV_STOP_CLKWR);
if (err < 0)
return err;
msleep(1);
err = rtsx_pci_write_phy_register(pcr, PHY_BPCR,
PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_PCR,
PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
PHY_PCR_RSSI_EN | PHY_PCR_RX10K);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
PHY_RCR2_EMPHASE_EN | PHY_RCR2_NADJR |
PHY_RCR2_CDR_SR_2 | PHY_RCR2_FREQSEL_12 |
PHY_RCR2_CDR_SC_12P | PHY_RCR2_CALIB_LATE);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_FLD4,
PHY_FLD4_FLDEN_SEL | PHY_FLD4_REQ_REF |
PHY_FLD4_RXAMP_OFF | PHY_FLD4_REQ_ADDA |
PHY_FLD4_BER_COUNT | PHY_FLD4_BER_TIMER |
PHY_FLD4_BER_CHK_EN);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_RDR,
PHY_RDR_RXDSEL_1_9 | PHY_SSC_AUTO_PWD);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_RCR1,
PHY_RCR1_ADP_TIME_4 | PHY_RCR1_VCO_COARSE);
if (err < 0)
return err;
err = rtsx_pci_write_phy_register(pcr, PHY_FLD3,
PHY_FLD3_TIMER_4 | PHY_FLD3_TIMER_6 |
PHY_FLD3_RXDELINK);
if (err < 0)
return err;
return rtsx_pci_write_phy_register(pcr, PHY_TUNE,
PHY_TUNE_TUNEREF_1_0 | PHY_TUNE_VBGSEL_1252 |
PHY_TUNE_SDBUS_33 | PHY_TUNE_TUNED18 |
PHY_TUNE_TUNED12 | PHY_TUNE_TUNEA12);
}
static int rtsx_base_turn_on_led(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
}
static int rtsx_base_turn_off_led(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
}
static int rtsx_base_enable_auto_blink(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
}
static int rtsx_base_disable_auto_blink(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
}
static int rtsx_base_card_power_on(struct rtsx_pcr *pcr, int card)
{
int err;
struct rtsx_cr_option *option = &pcr->option;
if (option->ocp_en)
rtsx_pci_enable_ocp(pcr);
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
SD_POWER_MASK, SD_VCC_PARTIAL_POWER_ON);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
LDO3318_PWR_MASK, 0x02);
err = rtsx_pci_send_cmd(pcr, 100);
if (err < 0)
return err;
msleep(5);
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
SD_POWER_MASK, SD_VCC_POWER_ON);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
LDO3318_PWR_MASK, 0x06);
return rtsx_pci_send_cmd(pcr, 100);
}
static int rtsx_base_card_power_off(struct rtsx_pcr *pcr, int card)
{
struct rtsx_cr_option *option = &pcr->option;
if (option->ocp_en)
rtsx_pci_disable_ocp(pcr);
rtsx_pci_write_register(pcr, CARD_PWR_CTL, SD_POWER_MASK, SD_POWER_OFF);
rtsx_pci_write_register(pcr, PWR_GATE_CTRL, LDO3318_PWR_MASK, 0x00);
return 0;
}
static int rtsx_base_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
{
int err;
u16 append;
switch (voltage) {
case OUTPUT_3V3:
err = rtsx_pci_update_phy(pcr, PHY_TUNE, PHY_TUNE_VOLTAGE_MASK,
PHY_TUNE_VOLTAGE_3V3);
if (err < 0)
return err;
break;
case OUTPUT_1V8:
append = PHY_TUNE_D18_1V8;
if (CHK_PCI_PID(pcr, 0x5249)) {
err = rtsx_pci_update_phy(pcr, PHY_BACR,
PHY_BACR_BASIC_MASK, 0);
if (err < 0)
return err;
append = PHY_TUNE_D18_1V7;
}
err = rtsx_pci_update_phy(pcr, PHY_TUNE, PHY_TUNE_VOLTAGE_MASK,
append);
if (err < 0)
return err;
break;
default:
pcr_dbg(pcr, "unknown output voltage %d\n", voltage);
return -EINVAL;
}
/* set pad drive */
rtsx_pci_init_cmd(pcr);
rts5249_fill_driving(pcr, voltage);
return rtsx_pci_send_cmd(pcr, 100);
}
static void rts5249_set_aspm(struct rtsx_pcr *pcr, bool enable)
{
struct rtsx_cr_option *option = &pcr->option;
u8 val = 0;
if (pcr->aspm_enabled == enable)
return;
if (option->dev_aspm_mode == DEV_ASPM_DYNAMIC) {
if (enable)
val = pcr->aspm_en;
rtsx_pci_update_cfg_byte(pcr,
pcr->pcie_cap + PCI_EXP_LNKCTL,
ASPM_MASK_NEG, val);
} else if (option->dev_aspm_mode == DEV_ASPM_BACKDOOR) {
u8 mask = FORCE_ASPM_VAL_MASK | FORCE_ASPM_CTL0;
if (!enable)
val = FORCE_ASPM_CTL0;
rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, mask, val);
}
pcr->aspm_enabled = enable;
}
static const struct pcr_ops rts5249_pcr_ops = {
.fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
.extra_init_hw = rts5249_extra_init_hw,
.optimize_phy = rts5249_optimize_phy,
.turn_on_led = rtsx_base_turn_on_led,
.turn_off_led = rtsx_base_turn_off_led,
.enable_auto_blink = rtsx_base_enable_auto_blink,
.disable_auto_blink = rtsx_base_disable_auto_blink,
.card_power_on = rtsx_base_card_power_on,
.card_power_off = rtsx_base_card_power_off,
.switch_output_voltage = rtsx_base_switch_output_voltage,
.force_power_down = rtsx_base_force_power_down,
.set_aspm = rts5249_set_aspm,
};
/* SD Pull Control Enable:
* SD_DAT[3:0] ==> pull up
* SD_CD ==> pull up
* SD_WP ==> pull up
* SD_CMD ==> pull up
* SD_CLK ==> pull down
*/
static const u32 rts5249_sd_pull_ctl_enable_tbl[] = {
RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA),
0,
};
/* SD Pull Control Disable:
* SD_DAT[3:0] ==> pull down
* SD_CD ==> pull up
* SD_WP ==> pull down
* SD_CMD ==> pull down
* SD_CLK ==> pull down
*/
static const u32 rts5249_sd_pull_ctl_disable_tbl[] = {
RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66),
RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
0,
};
/* MS Pull Control Enable:
* MS CD ==> pull up
* others ==> pull down
*/
static const u32 rts5249_ms_pull_ctl_enable_tbl[] = {
RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
0,
};
/* MS Pull Control Disable:
* MS CD ==> pull up
* others ==> pull down
*/
static const u32 rts5249_ms_pull_ctl_disable_tbl[] = {
RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55),
RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
0,
};
void rts5249_init_params(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &(pcr->option);
pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
pcr->num_slots = 2;
pcr->ops = &rts5249_pcr_ops;
pcr->flags = 0;
pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
pcr->aspm_en = ASPM_L1_EN;
pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
pcr->ic_version = rts5249_get_ic_version(pcr);
pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl;
pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl;
pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl;
pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl;
pcr->reg_pm_ctrl3 = PM_CTRL3;
option->dev_flags = (LTR_L1SS_PWR_GATE_CHECK_CARD_EN
| LTR_L1SS_PWR_GATE_EN);
option->ltr_en = true;
/* Init latency of active, idle, L1OFF to 60us, 300us, 3ms */
option->ltr_active_latency = LTR_ACTIVE_LATENCY_DEF;
option->ltr_idle_latency = LTR_IDLE_LATENCY_DEF;
option->ltr_l1off_latency = LTR_L1OFF_LATENCY_DEF;
option->dev_aspm_mode = DEV_ASPM_DYNAMIC;
option->l1_snooze_delay = L1_SNOOZE_DELAY_DEF;
option->ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5249_DEF;
option->ltr_l1off_snooze_sspwrgate =
LTR_L1OFF_SNOOZE_SSPWRGATE_5249_DEF;
}
static int rts524a_write_phy(struct rtsx_pcr *pcr, u8 addr, u16 val)
{
addr = addr & 0x80 ? (addr & 0x7F) | 0x40 : addr;
return __rtsx_pci_write_phy_register(pcr, addr, val);
}
static int rts524a_read_phy(struct rtsx_pcr *pcr, u8 addr, u16 *val)
{
addr = addr & 0x80 ? (addr & 0x7F) | 0x40 : addr;
return __rtsx_pci_read_phy_register(pcr, addr, val);
}
static int rts524a_optimize_phy(struct rtsx_pcr *pcr)
{
int err;
err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
D3_DELINK_MODE_EN, 0x00);
if (err < 0)
return err;
rtsx_pci_write_phy_register(pcr, PHY_PCR,
PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 | PHY_PCR_RSSI_EN);
rtsx_pci_write_phy_register(pcr, PHY_SSCCR3,
PHY_SSCCR3_STEP_IN | PHY_SSCCR3_CHECK_DELAY);
if (is_version(pcr, 0x524A, IC_VER_A)) {
rtsx_pci_write_phy_register(pcr, PHY_SSCCR3,
PHY_SSCCR3_STEP_IN | PHY_SSCCR3_CHECK_DELAY);
rtsx_pci_write_phy_register(pcr, PHY_SSCCR2,
PHY_SSCCR2_PLL_NCODE | PHY_SSCCR2_TIME0 |
PHY_SSCCR2_TIME2_WIDTH);
rtsx_pci_write_phy_register(pcr, PHY_ANA1A,
PHY_ANA1A_TXR_LOOPBACK | PHY_ANA1A_RXT_BIST |
PHY_ANA1A_TXR_BIST | PHY_ANA1A_REV);
rtsx_pci_write_phy_register(pcr, PHY_ANA1D,
PHY_ANA1D_DEBUG_ADDR);
rtsx_pci_write_phy_register(pcr, PHY_DIG1E,
PHY_DIG1E_REV | PHY_DIG1E_D0_X_D1 |
PHY_DIG1E_RX_ON_HOST | PHY_DIG1E_RCLK_REF_HOST |
PHY_DIG1E_RCLK_TX_EN_KEEP |
PHY_DIG1E_RCLK_TX_TERM_KEEP |
PHY_DIG1E_RCLK_RX_EIDLE_ON | PHY_DIG1E_TX_TERM_KEEP |
PHY_DIG1E_RX_TERM_KEEP | PHY_DIG1E_TX_EN_KEEP |
PHY_DIG1E_RX_EN_KEEP);
}
rtsx_pci_write_phy_register(pcr, PHY_ANA08,
PHY_ANA08_RX_EQ_DCGAIN | PHY_ANA08_SEL_RX_EN |
PHY_ANA08_RX_EQ_VAL | PHY_ANA08_SCP | PHY_ANA08_SEL_IPI);
return 0;
}
static int rts524a_extra_init_hw(struct rtsx_pcr *pcr)
{
rts5249_extra_init_hw(pcr);
rtsx_pci_write_register(pcr, FUNC_FORCE_CTL,
FORCE_ASPM_L1_EN, FORCE_ASPM_L1_EN);
rtsx_pci_write_register(pcr, PM_EVENT_DEBUG, PME_DEBUG_0, PME_DEBUG_0);
rtsx_pci_write_register(pcr, LDO_VCC_CFG1, LDO_VCC_LMT_EN,
LDO_VCC_LMT_EN);
rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
if (is_version(pcr, 0x524A, IC_VER_A)) {
rtsx_pci_write_register(pcr, LDO_DV18_CFG,
LDO_DV18_SR_MASK, LDO_DV18_SR_DF);
rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
LDO_VCC_REF_TUNE_MASK, LDO_VCC_REF_1V2);
rtsx_pci_write_register(pcr, LDO_VIO_CFG,
LDO_VIO_REF_TUNE_MASK, LDO_VIO_REF_1V2);
rtsx_pci_write_register(pcr, LDO_VIO_CFG,
LDO_VIO_SR_MASK, LDO_VIO_SR_DF);
rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
LDO_REF12_TUNE_MASK, LDO_REF12_TUNE_DF);
rtsx_pci_write_register(pcr, SD40_LDO_CTL1,
SD40_VIO_TUNE_MASK, SD40_VIO_TUNE_1V7);
}
return 0;
}
static void rts5250_set_l1off_cfg_sub_d0(struct rtsx_pcr *pcr, int active)
{
struct rtsx_cr_option *option = &(pcr->option);
u32 interrupt = rtsx_pci_readl(pcr, RTSX_BIPR);
int card_exist = (interrupt & SD_EXIST) | (interrupt & MS_EXIST);
int aspm_L1_1, aspm_L1_2;
u8 val = 0;
aspm_L1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN);
aspm_L1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN);
if (active) {
/* Run, latency: 60us */
if (aspm_L1_1)
val = option->ltr_l1off_snooze_sspwrgate;
} else {
/* L1off, latency: 300us */
if (aspm_L1_2)
val = option->ltr_l1off_sspwrgate;
}
if (aspm_L1_1 || aspm_L1_2) {
if (rtsx_check_dev_flag(pcr,
LTR_L1SS_PWR_GATE_CHECK_CARD_EN)) {
if (card_exist)
val &= ~L1OFF_MBIAS2_EN_5250;
else
val |= L1OFF_MBIAS2_EN_5250;
}
}
rtsx_set_l1off_sub(pcr, val);
}
static const struct pcr_ops rts524a_pcr_ops = {
.write_phy = rts524a_write_phy,
.read_phy = rts524a_read_phy,
.fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
.extra_init_hw = rts524a_extra_init_hw,
.optimize_phy = rts524a_optimize_phy,
.turn_on_led = rtsx_base_turn_on_led,
.turn_off_led = rtsx_base_turn_off_led,
.enable_auto_blink = rtsx_base_enable_auto_blink,
.disable_auto_blink = rtsx_base_disable_auto_blink,
.card_power_on = rtsx_base_card_power_on,
.card_power_off = rtsx_base_card_power_off,
.switch_output_voltage = rtsx_base_switch_output_voltage,
.force_power_down = rtsx_base_force_power_down,
.set_l1off_cfg_sub_d0 = rts5250_set_l1off_cfg_sub_d0,
.set_aspm = rts5249_set_aspm,
};
void rts524a_init_params(struct rtsx_pcr *pcr)
{
rts5249_init_params(pcr);
pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
pcr->option.ltr_l1off_snooze_sspwrgate =
LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
pcr->ops = &rts524a_pcr_ops;
pcr->option.ocp_en = 1;
if (pcr->option.ocp_en)
pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
pcr->option.sd_800mA_ocp_thd = RTS524A_OCP_THD_800;
}
static int rts525a_card_power_on(struct rtsx_pcr *pcr, int card)
{
rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
LDO_VCC_TUNE_MASK, LDO_VCC_3V3);
return rtsx_base_card_power_on(pcr, card);
}
static int rts525a_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
{
switch (voltage) {
case OUTPUT_3V3:
rtsx_pci_write_register(pcr, LDO_CONFIG2,
LDO_D3318_MASK, LDO_D3318_33V);
rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8, 0);
break;
case OUTPUT_1V8:
rtsx_pci_write_register(pcr, LDO_CONFIG2,
LDO_D3318_MASK, LDO_D3318_18V);
rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8,
SD_IO_USING_1V8);
break;
default:
return -EINVAL;
}
rtsx_pci_init_cmd(pcr);
rts5249_fill_driving(pcr, voltage);
return rtsx_pci_send_cmd(pcr, 100);
}
static int rts525a_optimize_phy(struct rtsx_pcr *pcr)
{
int err;
err = rtsx_pci_write_register(pcr, RTS524A_PM_CTRL3,
D3_DELINK_MODE_EN, 0x00);
if (err < 0)
return err;
rtsx_pci_write_phy_register(pcr, _PHY_FLD0,
_PHY_FLD0_CLK_REQ_20C | _PHY_FLD0_RX_IDLE_EN |
_PHY_FLD0_BIT_ERR_RSTN | _PHY_FLD0_BER_COUNT |
_PHY_FLD0_BER_TIMER | _PHY_FLD0_CHECK_EN);
rtsx_pci_write_phy_register(pcr, _PHY_ANA03,
_PHY_ANA03_TIMER_MAX | _PHY_ANA03_OOBS_DEB_EN |
_PHY_CMU_DEBUG_EN);
if (is_version(pcr, 0x525A, IC_VER_A))
rtsx_pci_write_phy_register(pcr, _PHY_REV0,
_PHY_REV0_FILTER_OUT | _PHY_REV0_CDR_BYPASS_PFD |
_PHY_REV0_CDR_RX_IDLE_BYPASS);
return 0;
}
static int rts525a_extra_init_hw(struct rtsx_pcr *pcr)
{
rts5249_extra_init_hw(pcr);
rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
if (is_version(pcr, 0x525A, IC_VER_A)) {
rtsx_pci_write_register(pcr, L1SUB_CONFIG2,
L1SUB_AUTO_CFG, L1SUB_AUTO_CFG);
rtsx_pci_write_register(pcr, RREF_CFG,
RREF_VBGSEL_MASK, RREF_VBGSEL_1V25);
rtsx_pci_write_register(pcr, LDO_VIO_CFG,
LDO_VIO_TUNE_MASK, LDO_VIO_1V7);
rtsx_pci_write_register(pcr, LDO_DV12S_CFG,
LDO_D12_TUNE_MASK, LDO_D12_TUNE_DF);
rtsx_pci_write_register(pcr, LDO_AV12S_CFG,
LDO_AV12S_TUNE_MASK, LDO_AV12S_TUNE_DF);
rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
LDO_VCC_LMTVTH_MASK, LDO_VCC_LMTVTH_2A);
rtsx_pci_write_register(pcr, OOBS_CONFIG,
OOBS_AUTOK_DIS | OOBS_VAL_MASK, 0x89);
}
return 0;
}
static const struct pcr_ops rts525a_pcr_ops = {
.fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
.extra_init_hw = rts525a_extra_init_hw,
.optimize_phy = rts525a_optimize_phy,
.turn_on_led = rtsx_base_turn_on_led,
.turn_off_led = rtsx_base_turn_off_led,
.enable_auto_blink = rtsx_base_enable_auto_blink,
.disable_auto_blink = rtsx_base_disable_auto_blink,
.card_power_on = rts525a_card_power_on,
.card_power_off = rtsx_base_card_power_off,
.switch_output_voltage = rts525a_switch_output_voltage,
.force_power_down = rtsx_base_force_power_down,
.set_l1off_cfg_sub_d0 = rts5250_set_l1off_cfg_sub_d0,
.set_aspm = rts5249_set_aspm,
};
void rts525a_init_params(struct rtsx_pcr *pcr)
{
rts5249_init_params(pcr);
pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
pcr->option.ltr_l1off_snooze_sspwrgate =
LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
pcr->ops = &rts525a_pcr_ops;
pcr->option.ocp_en = 1;
if (pcr->option.ocp_en)
pcr->hw_param.interrupt_en |= SD_OC_INT_EN;
pcr->hw_param.ocp_glitch = SD_OCP_GLITCH_10M;
pcr->option.sd_800mA_ocp_thd = RTS525A_OCP_THD_800;
}
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