drivers/misc/cardreader/rtl8411.c - linux - Git at Google

 /* Driver for Realtek PCI-Express card reader
  *
  * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2, or (at your option) any
  * later version.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
  * with this program; if not, see <http://www.gnu.org/licenses/>.
  *
  * Author:
  *   Wei WANG <wei_wang@realsil.com.cn>
  *   Roger Tseng <rogerable@realtek.com>
  */

 #include <linux/module.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/rtsx_pci.h>

 #include "rtsx_pcr.h"

 static u8 rtl8411_get_ic_version(struct rtsx_pcr *pcr)
 {
 	u8 val;

 	rtsx_pci_read_register(pcr, SYS_VER, &val);
 	return val & 0x0F;
 }

 static int rtl8411b_is_qfn48(struct rtsx_pcr *pcr)
 {
 	u8 val = 0;

 	rtsx_pci_read_register(pcr, RTL8411B_PACKAGE_MODE, &val);

 	if (val & 0x2)
 		return 1;
 	else
 		return 0;
 }

 static void rtl8411_fetch_vendor_settings(struct rtsx_pcr *pcr)
 {
 	u32 reg1 = 0;
 	u8 reg3 = 0;

 	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg1);
 	pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg1);

 	if (!rtsx_vendor_setting_valid(reg1))
 		return;

 	pcr->aspm_en = rtsx_reg_to_aspm(reg1);
 	pcr->sd30_drive_sel_1v8 =
 		map_sd_drive(rtsx_reg_to_sd30_drive_sel_1v8(reg1));
 	pcr->card_drive_sel &= 0x3F;
 	pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg1);

 	rtsx_pci_read_config_byte(pcr, PCR_SETTING_REG3, &reg3);
 	pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG3, reg3);
 	pcr->sd30_drive_sel_3v3 = rtl8411_reg_to_sd30_drive_sel_3v3(reg3);
 }

 static void rtl8411b_fetch_vendor_settings(struct rtsx_pcr *pcr)
 {
 	u32 reg = 0;

 	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))
 		return;

 	pcr->aspm_en = rtsx_reg_to_aspm(reg);
 	pcr->sd30_drive_sel_1v8 =
 		map_sd_drive(rtsx_reg_to_sd30_drive_sel_1v8(reg));
 	pcr->sd30_drive_sel_3v3 =
 		map_sd_drive(rtl8411b_reg_to_sd30_drive_sel_3v3(reg));
 }

 static void rtl8411_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
 {
 	rtsx_pci_write_register(pcr, FPDCTL, 0x07, 0x07);
 }

 static int rtl8411_extra_init_hw(struct rtsx_pcr *pcr)
 {
 	rtsx_pci_init_cmd(pcr);

 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL,
 			0xFF, pcr->sd30_drive_sel_3v3);
 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CD_PAD_CTL,
 			CD_DISABLE_MASK | CD_AUTO_DISABLE, CD_ENABLE);

 	return rtsx_pci_send_cmd(pcr, 100);
 }

 static int rtl8411b_extra_init_hw(struct rtsx_pcr *pcr)
 {
 	rtsx_pci_init_cmd(pcr);

 	if (rtl8411b_is_qfn48(pcr))
 		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
 				CARD_PULL_CTL3, 0xFF, 0xF5);
 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL,
 			0xFF, pcr->sd30_drive_sel_3v3);
 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CD_PAD_CTL,
 			CD_DISABLE_MASK | CD_AUTO_DISABLE, CD_ENABLE);
 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, FUNC_FORCE_CTL,
 			0x06, 0x00);

 	return rtsx_pci_send_cmd(pcr, 100);
 }

 static int rtl8411_turn_on_led(struct rtsx_pcr *pcr)
 {
 	return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x00);
 }

 static int rtl8411_turn_off_led(struct rtsx_pcr *pcr)
 {
 	return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x01);
 }

 static int rtl8411_enable_auto_blink(struct rtsx_pcr *pcr)
 {
 	return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0xFF, 0x0D);
 }

 static int rtl8411_disable_auto_blink(struct rtsx_pcr *pcr)
 {
 	return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0x08, 0x00);
 }

 static int rtl8411_card_power_on(struct rtsx_pcr *pcr, int card)
 {
 	int err;

 	rtsx_pci_init_cmd(pcr);
 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
 			BPP_POWER_MASK, BPP_POWER_5_PERCENT_ON);
 	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_CTL,
 			BPP_LDO_POWB, BPP_LDO_SUSPEND);
 	err = rtsx_pci_send_cmd(pcr, 100);
 	if (err < 0)
 		return err;

 	/* To avoid too large in-rush current */
 	udelay(150);

 	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
 			BPP_POWER_MASK, BPP_POWER_10_PERCENT_ON);
 	if (err < 0)
 		return err;

 	udelay(150);

 	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
 			BPP_POWER_MASK, BPP_POWER_15_PERCENT_ON);
 	if (err < 0)
 		return err;

 	udelay(150);

 	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
 			BPP_POWER_MASK, BPP_POWER_ON);
 	if (err < 0)
 		return err;

 	return rtsx_pci_write_register(pcr, LDO_CTL, BPP_LDO_POWB, BPP_LDO_ON);
 }

 static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card)
 {
 	int err;

 	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
 			BPP_POWER_MASK, BPP_POWER_OFF);
 	if (err < 0)
 		return err;

 	return rtsx_pci_write_register(pcr, LDO_CTL,
 			BPP_LDO_POWB, BPP_LDO_SUSPEND);
 }

 static int rtl8411_do_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage,
 		int bpp_tuned18_shift, int bpp_asic_1v8)
 {
 	u8 mask, val;
 	int err;

 	mask = (BPP_REG_TUNED18 << bpp_tuned18_shift) | BPP_PAD_MASK;
 	if (voltage == OUTPUT_3V3) {
 		err = rtsx_pci_write_register(pcr,
 				SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_3v3);
 		if (err < 0)
 			return err;
 		val = (BPP_ASIC_3V3 << bpp_tuned18_shift) | BPP_PAD_3V3;
 	} else if (voltage == OUTPUT_1V8) {
 		err = rtsx_pci_write_register(pcr,
 				SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_1v8);
 		if (err < 0)
 			return err;
 		val = (bpp_asic_1v8 << bpp_tuned18_shift) | BPP_PAD_1V8;
 	} else {
 		return -EINVAL;
 	}

 	return rtsx_pci_write_register(pcr, LDO_CTL, mask, val);
 }

 static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
 {
 	return rtl8411_do_switch_output_voltage(pcr, voltage,
 			BPP_TUNED18_SHIFT_8411, BPP_ASIC_1V8);
 }

 static int rtl8402_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
 {
 	return rtl8411_do_switch_output_voltage(pcr, voltage,
 			BPP_TUNED18_SHIFT_8402, BPP_ASIC_2V0);
 }

 static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr)
 {
 	unsigned int card_exist;

 	card_exist = rtsx_pci_readl(pcr, RTSX_BIPR);
 	card_exist &= CARD_EXIST;
 	if (!card_exist) {
 		/* Enable card CD */
 		rtsx_pci_write_register(pcr, CD_PAD_CTL,
 				CD_DISABLE_MASK, CD_ENABLE);
 		/* Enable card interrupt */
 		rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x00);
 		return 0;
 	}

 	if (hweight32(card_exist) > 1) {
 		rtsx_pci_write_register(pcr, CARD_PWR_CTL,
 				BPP_POWER_MASK, BPP_POWER_5_PERCENT_ON);
 		msleep(100);

 		card_exist = rtsx_pci_readl(pcr, RTSX_BIPR);
 		if (card_exist & MS_EXIST)
 			card_exist = MS_EXIST;
 		else if (card_exist & SD_EXIST)
 			card_exist = SD_EXIST;
 		else
 			card_exist = 0;

 		rtsx_pci_write_register(pcr, CARD_PWR_CTL,
 				BPP_POWER_MASK, BPP_POWER_OFF);

 		pcr_dbg(pcr, "After CD deglitch, card_exist = 0x%x\n",
 			card_exist);
 	}

 	if (card_exist & MS_EXIST) {
 		/* Disable SD interrupt */
 		rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x40);
 		rtsx_pci_write_register(pcr, CD_PAD_CTL,
 				CD_DISABLE_MASK, MS_CD_EN_ONLY);
 	} else if (card_exist & SD_EXIST) {
 		/* Disable MS interrupt */
 		rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x80);
 		rtsx_pci_write_register(pcr, CD_PAD_CTL,
 				CD_DISABLE_MASK, SD_CD_EN_ONLY);
 	}

 	return card_exist;
 }

 static int rtl8411_conv_clk_and_div_n(int input, int dir)
 {
 	int output;

 	if (dir == CLK_TO_DIV_N)
 		output = input * 4 / 5 - 2;
 	else
 		output = (input + 2) * 5 / 4;

 	return output;
 }

 static const struct pcr_ops rtl8411_pcr_ops = {
 	.fetch_vendor_settings = rtl8411_fetch_vendor_settings,
 	.extra_init_hw = rtl8411_extra_init_hw,
 	.optimize_phy = NULL,
 	.turn_on_led = rtl8411_turn_on_led,
 	.turn_off_led = rtl8411_turn_off_led,
 	.enable_auto_blink = rtl8411_enable_auto_blink,
 	.disable_auto_blink = rtl8411_disable_auto_blink,
 	.card_power_on = rtl8411_card_power_on,
 	.card_power_off = rtl8411_card_power_off,
 	.switch_output_voltage = rtl8411_switch_output_voltage,
 	.cd_deglitch = rtl8411_cd_deglitch,
 	.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
 	.force_power_down = rtl8411_force_power_down,
 };

 static const struct pcr_ops rtl8402_pcr_ops = {
 	.fetch_vendor_settings = rtl8411_fetch_vendor_settings,
 	.extra_init_hw = rtl8411_extra_init_hw,
 	.optimize_phy = NULL,
 	.turn_on_led = rtl8411_turn_on_led,
 	.turn_off_led = rtl8411_turn_off_led,
 	.enable_auto_blink = rtl8411_enable_auto_blink,
 	.disable_auto_blink = rtl8411_disable_auto_blink,
 	.card_power_on = rtl8411_card_power_on,
 	.card_power_off = rtl8411_card_power_off,
 	.switch_output_voltage = rtl8402_switch_output_voltage,
 	.cd_deglitch = rtl8411_cd_deglitch,
 	.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
 	.force_power_down = rtl8411_force_power_down,
 };

 static const struct pcr_ops rtl8411b_pcr_ops = {
 	.fetch_vendor_settings = rtl8411b_fetch_vendor_settings,
 	.extra_init_hw = rtl8411b_extra_init_hw,
 	.optimize_phy = NULL,
 	.turn_on_led = rtl8411_turn_on_led,
 	.turn_off_led = rtl8411_turn_off_led,
 	.enable_auto_blink = rtl8411_enable_auto_blink,
 	.disable_auto_blink = rtl8411_disable_auto_blink,
 	.card_power_on = rtl8411_card_power_on,
 	.card_power_off = rtl8411_card_power_off,
 	.switch_output_voltage = rtl8411_switch_output_voltage,
 	.cd_deglitch = rtl8411_cd_deglitch,
 	.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
 	.force_power_down = rtl8411_force_power_down,
 };

 /* 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 rtl8411_sd_pull_ctl_enable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0xAA),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xA9),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x09),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
 	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 rtl8411_sd_pull_ctl_disable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
 	0,
 };

 /* MS Pull Control Enable:
  *     MS CD       ==> pull up
  *     others      ==> pull down
  */
 static const u32 rtl8411_ms_pull_ctl_enable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x05),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
 	0,
 };

 /* MS Pull Control Disable:
  *     MS CD       ==> pull up
  *     others      ==> pull down
  */
 static const u32 rtl8411_ms_pull_ctl_disable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
 	0,
 };

 static const u32 rtl8411b_qfn64_sd_pull_ctl_enable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0xAA),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x09 | 0xD0),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn48_sd_pull_ctl_enable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x69 | 0x90),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x08 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn64_sd_pull_ctl_disable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x05 | 0xD0),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn48_sd_pull_ctl_disable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x65 | 0x90),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn64_ms_pull_ctl_enable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x05 | 0xD0),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x05 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn48_ms_pull_ctl_enable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x65 | 0x90),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn64_ms_pull_ctl_disable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x05 | 0xD0),
 	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 | 0x50),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static const u32 rtl8411b_qfn48_ms_pull_ctl_disable_tbl[] = {
 	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
 	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x65 | 0x90),
 	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 | 0x11),
 	0,
 };

 static void rtl8411_init_common_params(struct rtsx_pcr *pcr)
 {
 	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
 	pcr->num_slots = 2;
 	pcr->flags = 0;
 	pcr->card_drive_sel = RTL8411_CARD_DRIVE_DEFAULT;
 	pcr->sd30_drive_sel_1v8 = DRIVER_TYPE_B;
 	pcr->sd30_drive_sel_3v3 = DRIVER_TYPE_D;
 	pcr->aspm_en = ASPM_L1_EN;
 	pcr->tx_initial_phase = SET_CLOCK_PHASE(23, 7, 14);
 	pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10);
 	pcr->ic_version = rtl8411_get_ic_version(pcr);
 }

 void rtl8411_init_params(struct rtsx_pcr *pcr)
 {
 	rtl8411_init_common_params(pcr);
 	pcr->ops = &rtl8411_pcr_ops;
 	set_pull_ctrl_tables(pcr, rtl8411);
 }

 void rtl8411b_init_params(struct rtsx_pcr *pcr)
 {
 	rtl8411_init_common_params(pcr);
 	pcr->ops = &rtl8411b_pcr_ops;
 	if (rtl8411b_is_qfn48(pcr))
 		set_pull_ctrl_tables(pcr, rtl8411b_qfn48);
 	else
 		set_pull_ctrl_tables(pcr, rtl8411b_qfn64);
 }

 void rtl8402_init_params(struct rtsx_pcr *pcr)
 {
 	rtl8411_init_common_params(pcr);
 	pcr->ops = &rtl8402_pcr_ops;
 	set_pull_ctrl_tables(pcr, rtl8411);
 }
	/* Driver for Realtek PCI-Express card reader
	*
	* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2, or (at your option) any
	* later version.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, see <http://www.gnu.org/licenses/>.
	*
	* Author:
	* Wei WANG <wei_wang@realsil.com.cn>
	* Roger Tseng <rogerable@realtek.com>
	*/

	#include <linux/module.h>
	#include <linux/bitops.h>
	#include <linux/delay.h>
	#include <linux/rtsx_pci.h>

	#include "rtsx_pcr.h"

	static u8 rtl8411_get_ic_version(struct rtsx_pcr *pcr)
	{
	u8 val;

	rtsx_pci_read_register(pcr, SYS_VER, &val);
	return val & 0x0F;
	}

	static int rtl8411b_is_qfn48(struct rtsx_pcr *pcr)
	{
	u8 val = 0;

	rtsx_pci_read_register(pcr, RTL8411B_PACKAGE_MODE, &val);

	if (val & 0x2)
	return 1;
	else
	return 0;
	}

	static void rtl8411_fetch_vendor_settings(struct rtsx_pcr *pcr)
	{
	u32 reg1 = 0;
	u8 reg3 = 0;

	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg1);
	pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg1);

	if (!rtsx_vendor_setting_valid(reg1))
	return;

	pcr->aspm_en = rtsx_reg_to_aspm(reg1);
	pcr->sd30_drive_sel_1v8 =
	map_sd_drive(rtsx_reg_to_sd30_drive_sel_1v8(reg1));
	pcr->card_drive_sel &= 0x3F;
	pcr->card_drive_sel \|= rtsx_reg_to_card_drive_sel(reg1);

	rtsx_pci_read_config_byte(pcr, PCR_SETTING_REG3, &reg3);
	pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG3, reg3);
	pcr->sd30_drive_sel_3v3 = rtl8411_reg_to_sd30_drive_sel_3v3(reg3);
	}

	static void rtl8411b_fetch_vendor_settings(struct rtsx_pcr *pcr)
	{
	u32 reg = 0;

	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))
	return;

	pcr->aspm_en = rtsx_reg_to_aspm(reg);
	pcr->sd30_drive_sel_1v8 =
	map_sd_drive(rtsx_reg_to_sd30_drive_sel_1v8(reg));
	pcr->sd30_drive_sel_3v3 =
	map_sd_drive(rtl8411b_reg_to_sd30_drive_sel_3v3(reg));
	}

	static void rtl8411_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
	{
	rtsx_pci_write_register(pcr, FPDCTL, 0x07, 0x07);
	}

	static int rtl8411_extra_init_hw(struct rtsx_pcr *pcr)
	{
	rtsx_pci_init_cmd(pcr);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL,
	0xFF, pcr->sd30_drive_sel_3v3);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CD_PAD_CTL,
	CD_DISABLE_MASK \| CD_AUTO_DISABLE, CD_ENABLE);

	return rtsx_pci_send_cmd(pcr, 100);
	}

	static int rtl8411b_extra_init_hw(struct rtsx_pcr *pcr)
	{
	rtsx_pci_init_cmd(pcr);

	if (rtl8411b_is_qfn48(pcr))
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
	CARD_PULL_CTL3, 0xFF, 0xF5);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL,
	0xFF, pcr->sd30_drive_sel_3v3);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CD_PAD_CTL,
	CD_DISABLE_MASK \| CD_AUTO_DISABLE, CD_ENABLE);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, FUNC_FORCE_CTL,
	0x06, 0x00);

	return rtsx_pci_send_cmd(pcr, 100);
	}

	static int rtl8411_turn_on_led(struct rtsx_pcr *pcr)
	{
	return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x00);
	}

	static int rtl8411_turn_off_led(struct rtsx_pcr *pcr)
	{
	return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x01);
	}

	static int rtl8411_enable_auto_blink(struct rtsx_pcr *pcr)
	{
	return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0xFF, 0x0D);
	}

	static int rtl8411_disable_auto_blink(struct rtsx_pcr *pcr)
	{
	return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0x08, 0x00);
	}

	static int rtl8411_card_power_on(struct rtsx_pcr *pcr, int card)
	{
	int err;

	rtsx_pci_init_cmd(pcr);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_5_PERCENT_ON);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_CTL,
	BPP_LDO_POWB, BPP_LDO_SUSPEND);
	err = rtsx_pci_send_cmd(pcr, 100);
	if (err < 0)
	return err;

	/* To avoid too large in-rush current */
	udelay(150);

	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_10_PERCENT_ON);
	if (err < 0)
	return err;

	udelay(150);

	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_15_PERCENT_ON);
	if (err < 0)
	return err;

	udelay(150);

	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_ON);
	if (err < 0)
	return err;

	return rtsx_pci_write_register(pcr, LDO_CTL, BPP_LDO_POWB, BPP_LDO_ON);
	}

	static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card)
	{
	int err;

	err = rtsx_pci_write_register(pcr, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_OFF);
	if (err < 0)
	return err;

	return rtsx_pci_write_register(pcr, LDO_CTL,
	BPP_LDO_POWB, BPP_LDO_SUSPEND);
	}

	static int rtl8411_do_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage,
	int bpp_tuned18_shift, int bpp_asic_1v8)
	{
	u8 mask, val;
	int err;

	mask = (BPP_REG_TUNED18 << bpp_tuned18_shift) \| BPP_PAD_MASK;
	if (voltage == OUTPUT_3V3) {
	err = rtsx_pci_write_register(pcr,
	SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_3v3);
	if (err < 0)
	return err;
	val = (BPP_ASIC_3V3 << bpp_tuned18_shift) \| BPP_PAD_3V3;
	} else if (voltage == OUTPUT_1V8) {
	err = rtsx_pci_write_register(pcr,
	SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_1v8);
	if (err < 0)
	return err;
	val = (bpp_asic_1v8 << bpp_tuned18_shift) \| BPP_PAD_1V8;
	} else {
	return -EINVAL;
	}

	return rtsx_pci_write_register(pcr, LDO_CTL, mask, val);
	}

	static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
	{
	return rtl8411_do_switch_output_voltage(pcr, voltage,
	BPP_TUNED18_SHIFT_8411, BPP_ASIC_1V8);
	}

	static int rtl8402_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
	{
	return rtl8411_do_switch_output_voltage(pcr, voltage,
	BPP_TUNED18_SHIFT_8402, BPP_ASIC_2V0);
	}

	static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr)
	{
	unsigned int card_exist;

	card_exist = rtsx_pci_readl(pcr, RTSX_BIPR);
	card_exist &= CARD_EXIST;
	if (!card_exist) {
	/* Enable card CD */
	rtsx_pci_write_register(pcr, CD_PAD_CTL,
	CD_DISABLE_MASK, CD_ENABLE);
	/* Enable card interrupt */
	rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x00);
	return 0;
	}

	if (hweight32(card_exist) > 1) {
	rtsx_pci_write_register(pcr, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_5_PERCENT_ON);
	msleep(100);

	card_exist = rtsx_pci_readl(pcr, RTSX_BIPR);
	if (card_exist & MS_EXIST)
	card_exist = MS_EXIST;
	else if (card_exist & SD_EXIST)
	card_exist = SD_EXIST;
	else
	card_exist = 0;

	rtsx_pci_write_register(pcr, CARD_PWR_CTL,
	BPP_POWER_MASK, BPP_POWER_OFF);

	pcr_dbg(pcr, "After CD deglitch, card_exist = 0x%x\n",
	card_exist);
	}

	if (card_exist & MS_EXIST) {
	/* Disable SD interrupt */
	rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x40);
	rtsx_pci_write_register(pcr, CD_PAD_CTL,
	CD_DISABLE_MASK, MS_CD_EN_ONLY);
	} else if (card_exist & SD_EXIST) {
	/* Disable MS interrupt */
	rtsx_pci_write_register(pcr, EFUSE_CONTENT, 0xe0, 0x80);
	rtsx_pci_write_register(pcr, CD_PAD_CTL,
	CD_DISABLE_MASK, SD_CD_EN_ONLY);
	}

	return card_exist;
	}

	static int rtl8411_conv_clk_and_div_n(int input, int dir)
	{
	int output;

	if (dir == CLK_TO_DIV_N)
	output = input * 4 / 5 - 2;
	else
	output = (input + 2) * 5 / 4;

	return output;
	}

	static const struct pcr_ops rtl8411_pcr_ops = {
	.fetch_vendor_settings = rtl8411_fetch_vendor_settings,
	.extra_init_hw = rtl8411_extra_init_hw,
	.optimize_phy = NULL,
	.turn_on_led = rtl8411_turn_on_led,
	.turn_off_led = rtl8411_turn_off_led,
	.enable_auto_blink = rtl8411_enable_auto_blink,
	.disable_auto_blink = rtl8411_disable_auto_blink,
	.card_power_on = rtl8411_card_power_on,
	.card_power_off = rtl8411_card_power_off,
	.switch_output_voltage = rtl8411_switch_output_voltage,
	.cd_deglitch = rtl8411_cd_deglitch,
	.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
	.force_power_down = rtl8411_force_power_down,
	};

	static const struct pcr_ops rtl8402_pcr_ops = {
	.fetch_vendor_settings = rtl8411_fetch_vendor_settings,
	.extra_init_hw = rtl8411_extra_init_hw,
	.optimize_phy = NULL,
	.turn_on_led = rtl8411_turn_on_led,
	.turn_off_led = rtl8411_turn_off_led,
	.enable_auto_blink = rtl8411_enable_auto_blink,
	.disable_auto_blink = rtl8411_disable_auto_blink,
	.card_power_on = rtl8411_card_power_on,
	.card_power_off = rtl8411_card_power_off,
	.switch_output_voltage = rtl8402_switch_output_voltage,
	.cd_deglitch = rtl8411_cd_deglitch,
	.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
	.force_power_down = rtl8411_force_power_down,
	};

	static const struct pcr_ops rtl8411b_pcr_ops = {
	.fetch_vendor_settings = rtl8411b_fetch_vendor_settings,
	.extra_init_hw = rtl8411b_extra_init_hw,
	.optimize_phy = NULL,
	.turn_on_led = rtl8411_turn_on_led,
	.turn_off_led = rtl8411_turn_off_led,
	.enable_auto_blink = rtl8411_enable_auto_blink,
	.disable_auto_blink = rtl8411_disable_auto_blink,
	.card_power_on = rtl8411_card_power_on,
	.card_power_off = rtl8411_card_power_off,
	.switch_output_voltage = rtl8411_switch_output_voltage,
	.cd_deglitch = rtl8411_cd_deglitch,
	.conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
	.force_power_down = rtl8411_force_power_down,
	};

	/* 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 rtl8411_sd_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0xAA),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xA9),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x09),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
	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 rtl8411_sd_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
	0,
	};

	/* MS Pull Control Enable:
	* MS CD ==> pull up
	* others ==> pull down
	*/
	static const u32 rtl8411_ms_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x05),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
	0,
	};

	/* MS Pull Control Disable:
	* MS CD ==> pull up
	* others ==> pull down
	*/
	static const u32 rtl8411_ms_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x95),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04),
	0,
	};

	static const u32 rtl8411b_qfn64_sd_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0xAA),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x09 \| 0xD0),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn48_sd_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x69 \| 0x90),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x08 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn64_sd_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x05 \| 0xD0),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn48_sd_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x65 \| 0x90),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn64_ms_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x05 \| 0xD0),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x05 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn48_ms_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x65 \| 0x90),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn64_ms_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL1, 0x65),
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x05 \| 0xD0),
	RTSX_REG_PAIR(CARD_PULL_CTL4, 0x09 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x05 \| 0x50),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static const u32 rtl8411b_qfn48_ms_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0x65 \| 0x90),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x04 \| 0x11),
	0,
	};

	static void rtl8411_init_common_params(struct rtsx_pcr *pcr)
	{
	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 \| EXTRA_CAPS_SD_SDR104;
	pcr->num_slots = 2;
	pcr->flags = 0;
	pcr->card_drive_sel = RTL8411_CARD_DRIVE_DEFAULT;
	pcr->sd30_drive_sel_1v8 = DRIVER_TYPE_B;
	pcr->sd30_drive_sel_3v3 = DRIVER_TYPE_D;
	pcr->aspm_en = ASPM_L1_EN;
	pcr->tx_initial_phase = SET_CLOCK_PHASE(23, 7, 14);
	pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10);
	pcr->ic_version = rtl8411_get_ic_version(pcr);
	}

	void rtl8411_init_params(struct rtsx_pcr *pcr)
	{
	rtl8411_init_common_params(pcr);
	pcr->ops = &rtl8411_pcr_ops;
	set_pull_ctrl_tables(pcr, rtl8411);
	}

	void rtl8411b_init_params(struct rtsx_pcr *pcr)
	{
	rtl8411_init_common_params(pcr);
	pcr->ops = &rtl8411b_pcr_ops;
	if (rtl8411b_is_qfn48(pcr))
	set_pull_ctrl_tables(pcr, rtl8411b_qfn48);
	else
	set_pull_ctrl_tables(pcr, rtl8411b_qfn64);
	}

	void rtl8402_init_params(struct rtsx_pcr *pcr)
	{
	rtl8411_init_common_params(pcr);
	pcr->ops = &rtl8402_pcr_ops;
	set_pull_ctrl_tables(pcr, rtl8411);
	}