[deliverable/linux.git] / drivers / mfd / rts5227.c

/* 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/delay.h>
#include <linux/mfd/rtsx_pci.h>

#include "rtsx_pcr.h"

static void rts5227_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
{
	u8 driving_3v3[4][3] = {
		{0x13, 0x13, 0x13},
		{0x96, 0x96, 0x96},
		{0x7F, 0x7F, 0x7F},
		{0x96, 0x96, 0x96},
	};
	u8 driving_1v8[4][3] = {
		{0x99, 0x99, 0x99},
		{0xAA, 0xAA, 0xAA},
		{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 rts5227_fetch_vendor_settings(struct rtsx_pcr *pcr)
{
	u32 reg;

	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg);
	dev_dbg(&(pcr->pci->dev), "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 = 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);
	dev_dbg(&(pcr->pci->dev), "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 rts5227_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, PM_CTRL3, 0x10, 0x10);

	rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
}

static int rts5227_extra_init_hw(struct rtsx_pcr *pcr)
{
	u16 cap;

	rtsx_pci_init_cmd(pcr);

	/* 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 LTR */
	pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &cap);
	if (cap & PCI_EXP_DEVCTL2_LTR_EN)
		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LTR_CTL, 0xFF, 0xA3);
	/* Configure OBFF */
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OBFF_CFG, 0x03, 0x03);
	/* Configure driving */
	rts5227_fill_driving(pcr, OUTPUT_3V3);
	/* Configure force_clock_req */
	if (pcr->flags & PCR_REVERSE_SOCKET)
		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
				AUTOLOAD_CFG_BASE + 3, 0xB8, 0xB8);
	else
		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
				AUTOLOAD_CFG_BASE + 3, 0xB8, 0x88);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PM_CTRL3, 0x10, 0x00);

	return rtsx_pci_send_cmd(pcr, 100);
}

static int rts5227_optimize_phy(struct rtsx_pcr *pcr)
{
	int err;

	err = rtsx_gops_pm_reset(pcr);
	if (err < 0)
		return err;

	/* Optimize RX sensitivity */
	return rtsx_pci_write_phy_register(pcr, 0x00, 0xBA42);
}

static int rts5227_turn_on_led(struct rtsx_pcr *pcr)
{
	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
}

static int rts5227_turn_off_led(struct rtsx_pcr *pcr)
{
	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
}

static int rts5227_enable_auto_blink(struct rtsx_pcr *pcr)
{
	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
}

static int rts5227_disable_auto_blink(struct rtsx_pcr *pcr)
{
	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
}

static int rts5227_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,
			SD_POWER_MASK, SD_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;

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

	rtsx_pci_init_cmd(pcr);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
			SD_POWER_MASK, SD_POWER_ON);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
			LDO3318_PWR_MASK, 0x06);
	err = rtsx_pci_send_cmd(pcr, 100);
	if (err < 0)
		return err;

	return 0;
}

static int rts5227_card_power_off(struct rtsx_pcr *pcr, int card)
{
	rtsx_pci_init_cmd(pcr);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
			SD_POWER_MASK | PMOS_STRG_MASK,
			SD_POWER_OFF | PMOS_STRG_400mA);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
			LDO3318_PWR_MASK, 0X00);
	return rtsx_pci_send_cmd(pcr, 100);
}

static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
{
	int err;

	if (voltage == OUTPUT_3V3) {
		err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24);
		if (err < 0)
			return err;
	} else if (voltage == OUTPUT_1V8) {
		err = rtsx_pci_write_phy_register(pcr, 0x11, 0x3C02);
		if (err < 0)
			return err;
		err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C80 | 0x24);
		if (err < 0)
			return err;
	} else {
		return -EINVAL;
	}

	/* set pad drive */
	rtsx_pci_init_cmd(pcr);
	rts5227_fill_driving(pcr, voltage);
	return rtsx_pci_send_cmd(pcr, 100);
}

static const struct pcr_ops rts5227_pcr_ops = {
	.fetch_vendor_settings = rts5227_fetch_vendor_settings,
	.extra_init_hw = rts5227_extra_init_hw,
	.optimize_phy = rts5227_optimize_phy,
	.turn_on_led = rts5227_turn_on_led,
	.turn_off_led = rts5227_turn_off_led,
	.enable_auto_blink = rts5227_enable_auto_blink,
	.disable_auto_blink = rts5227_disable_auto_blink,
	.card_power_on = rts5227_card_power_on,
	.card_power_off = rts5227_card_power_off,
	.switch_output_voltage = rts5227_switch_output_voltage,
	.cd_deglitch = NULL,
	.conv_clk_and_div_n = NULL,
	.force_power_down = rts5227_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 rts5227_sd_pull_ctl_enable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
	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 rts5227_sd_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
	0,
};

/* MS Pull Control Enable:
 *     MS CD       ==> pull up
 *     others      ==> pull down
 */
static const u32 rts5227_ms_pull_ctl_enable_tbl[] = {
	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 rts5227_ms_pull_ctl_disable_tbl[] = {
	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
	0,
};

void rts5227_init_params(struct rtsx_pcr *pcr)
{
	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
	pcr->num_slots = 2;
	pcr->ops = &rts5227_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(27, 27, 15);
	pcr->rx_initial_phase = SET_CLOCK_PHASE(30, 7, 7);

	pcr->sd_pull_ctl_enable_tbl = rts5227_sd_pull_ctl_enable_tbl;
	pcr->sd_pull_ctl_disable_tbl = rts5227_sd_pull_ctl_disable_tbl;
	pcr->ms_pull_ctl_enable_tbl = rts5227_ms_pull_ctl_enable_tbl;
	pcr->ms_pull_ctl_disable_tbl = rts5227_ms_pull_ctl_disable_tbl;
}
Commit	Line	Data
e1237932 RT	1	/* Driver for Realtek PCI-Express card reader
e1237932 RT	2	*
09fd8678	3	* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
e1237932 RT	4	*
	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
	8	* later version.
	9	*
	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.
	14	*
	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/>.
	17	*
	18	* Author:
	19	* Wei WANG <wei_wang@realsil.com.cn>
e1237932	20	* Roger Tseng <rogerable@realtek.com>
e1237932 RT	21	*/
	22
	23	#include <linux/module.h>
	24	#include <linux/delay.h>
	25	#include <linux/mfd/rtsx_pci.h>
	26
	27	#include "rtsx_pcr.h"
	28
773ccdfd WW	29	static void rts5227_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
	30	{
	31	u8 driving_3v3[4][3] = {
	32	{0x13, 0x13, 0x13},
	33	{0x96, 0x96, 0x96},
	34	{0x7F, 0x7F, 0x7F},
	35	{0x96, 0x96, 0x96},
	36	};
	37	u8 driving_1v8[4][3] = {
	38	{0x99, 0x99, 0x99},
	39	{0xAA, 0xAA, 0xAA},
	40	{0xFE, 0xFE, 0xFE},
	41	{0xB3, 0xB3, 0xB3},
	42	};
	43	u8 (*driving)[3], drive_sel;
	44
	45	if (voltage == OUTPUT_3V3) {
	46	driving = driving_3v3;
	47	drive_sel = pcr->sd30_drive_sel_3v3;
	48	} else {
	49	driving = driving_1v8;
	50	drive_sel = pcr->sd30_drive_sel_1v8;
	51	}
	52
	53	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
	54	0xFF, driving[drive_sel][0]);
	55	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
	56	0xFF, driving[drive_sel][1]);
	57	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
	58	0xFF, driving[drive_sel][2]);
	59	}
	60
	61	static void rts5227_fetch_vendor_settings(struct rtsx_pcr *pcr)
	62	{
	63	u32 reg;
	64
	65	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg);
	66	dev_dbg(&(pcr->pci->dev), "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
	67
	68	if (!rtsx_vendor_setting_valid(reg))
	69	return;
	70
	71	pcr->aspm_en = rtsx_reg_to_aspm(reg);
	72	pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
	73	pcr->card_drive_sel &= 0x3F;
	74	pcr->card_drive_sel \|= rtsx_reg_to_card_drive_sel(reg);
	75
	76	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, &reg);
	77	dev_dbg(&(pcr->pci->dev), "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
	78	pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
	79	if (rtsx_reg_check_reverse_socket(reg))
	80	pcr->flags \|= PCR_REVERSE_SOCKET;
	81	}
	82
eb891c65	83	static void rts5227_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
5947c167 WW	84	{
	85	/* Set relink_time to 0 */
	86	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
	87	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
	88	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
	89
eb891c65 WW	90	if (pm_state == HOST_ENTER_S3)
	91	rtsx_pci_write_register(pcr, PM_CTRL3, 0x10, 0x10);
	92
5947c167 WW	93	rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
	94	}
	95
e1237932 RT	96	static int rts5227_extra_init_hw(struct rtsx_pcr *pcr)
	97	{
	98	u16 cap;
	99
	100	rtsx_pci_init_cmd(pcr);
	101
	102	/* Configure GPIO as output */
	103	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
7140812c WW	104	/* Reset ASPM state to default value */
7140812c WW	105	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0);
e1237932 RT	106	/* Switch LDO3318 source from DV33 to card_3v3 */
	107	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
	108	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
	109	/* LED shine disabled, set initial shine cycle period */
	110	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
	111	/* Configure LTR */
	112	pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &cap);
d2ab1fa6	113	if (cap & PCI_EXP_DEVCTL2_LTR_EN)
e1237932 RT	114	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LTR_CTL, 0xFF, 0xA3);
	115	/* Configure OBFF */
	116	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OBFF_CFG, 0x03, 0x03);
773ccdfd WW	117	/* Configure driving */
	118	rts5227_fill_driving(pcr, OUTPUT_3V3);
	119	/* Configure force_clock_req */
	120	if (pcr->flags & PCR_REVERSE_SOCKET)
	121	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
	122	AUTOLOAD_CFG_BASE + 3, 0xB8, 0xB8);
	123	else
	124	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
	125	AUTOLOAD_CFG_BASE + 3, 0xB8, 0x88);
eb891c65	126	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PM_CTRL3, 0x10, 0x00);
e1237932 RT	127
	128	return rtsx_pci_send_cmd(pcr, 100);
	129	}
	130
	131	static int rts5227_optimize_phy(struct rtsx_pcr *pcr)
	132	{
5cb5d961 MC	133	int err;
	134
	135	err = rtsx_gops_pm_reset(pcr);
	136	if (err < 0)
	137	return err;
	138
e1237932 RT	139	/* Optimize RX sensitivity */
	140	return rtsx_pci_write_phy_register(pcr, 0x00, 0xBA42);
	141	}
	142
	143	static int rts5227_turn_on_led(struct rtsx_pcr *pcr)
	144	{
	145	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
	146	}
	147
	148	static int rts5227_turn_off_led(struct rtsx_pcr *pcr)
	149	{
	150	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
	151	}
	152
	153	static int rts5227_enable_auto_blink(struct rtsx_pcr *pcr)
	154	{
	155	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
	156	}
	157
	158	static int rts5227_disable_auto_blink(struct rtsx_pcr *pcr)
	159	{
	160	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
	161	}
	162
	163	static int rts5227_card_power_on(struct rtsx_pcr *pcr, int card)
	164	{
	165	int err;
	166
	167	rtsx_pci_init_cmd(pcr);
	168	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	169	SD_POWER_MASK, SD_PARTIAL_POWER_ON);
	170	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
	171	LDO3318_PWR_MASK, 0x02);
	172	err = rtsx_pci_send_cmd(pcr, 100);
	173	if (err < 0)
	174	return err;
	175
	176	/* To avoid too large in-rush current */
	177	udelay(150);
	178
	179	rtsx_pci_init_cmd(pcr);
	180	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	181	SD_POWER_MASK, SD_POWER_ON);
	182	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
	183	LDO3318_PWR_MASK, 0x06);
	184	err = rtsx_pci_send_cmd(pcr, 100);
	185	if (err < 0)
	186	return err;
	187
	188	return 0;
	189	}
	190
	191	static int rts5227_card_power_off(struct rtsx_pcr *pcr, int card)
	192	{
	193	rtsx_pci_init_cmd(pcr);
	194	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	195	SD_POWER_MASK \| PMOS_STRG_MASK,
	196	SD_POWER_OFF \| PMOS_STRG_400mA);
	197	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
	198	LDO3318_PWR_MASK, 0X00);
	199	return rtsx_pci_send_cmd(pcr, 100);
	200	}
	201
	202	static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
203	{
204	int err;
e1237932 RT	205
	206	if (voltage == OUTPUT_3V3) {
	207	err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 \| 0x24);
	208	if (err < 0)
	209	return err;
e1237932 RT	210	} else if (voltage == OUTPUT_1V8) {
	211	err = rtsx_pci_write_phy_register(pcr, 0x11, 0x3C02);
	212	if (err < 0)
	213	return err;
	214	err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C80 \| 0x24);
	215	if (err < 0)
	216	return err;
e1237932 RT	217	} else {
	218	return -EINVAL;
	219	}
	220
	221	/* set pad drive */
	222	rtsx_pci_init_cmd(pcr);
773ccdfd	223	rts5227_fill_driving(pcr, voltage);
e1237932 RT	224	return rtsx_pci_send_cmd(pcr, 100);
	225	}
	226
	227	static const struct pcr_ops rts5227_pcr_ops = {
773ccdfd	228	.fetch_vendor_settings = rts5227_fetch_vendor_settings,
e1237932 RT	229	.extra_init_hw = rts5227_extra_init_hw,
	230	.optimize_phy = rts5227_optimize_phy,
	231	.turn_on_led = rts5227_turn_on_led,
	232	.turn_off_led = rts5227_turn_off_led,
	233	.enable_auto_blink = rts5227_enable_auto_blink,
	234	.disable_auto_blink = rts5227_disable_auto_blink,
	235	.card_power_on = rts5227_card_power_on,
	236	.card_power_off = rts5227_card_power_off,
	237	.switch_output_voltage = rts5227_switch_output_voltage,
	238	.cd_deglitch = NULL,
	239	.conv_clk_and_div_n = NULL,
5947c167	240	.force_power_down = rts5227_force_power_down,
e1237932 RT	241	};
	242
	243	/* SD Pull Control Enable:
	244	* SD_DAT[3:0] ==> pull up
	245	* SD_CD ==> pull up
	246	* SD_WP ==> pull up
	247	* SD_CMD ==> pull up
	248	* SD_CLK ==> pull down
	249	*/
	250	static const u32 rts5227_sd_pull_ctl_enable_tbl[] = {
	251	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
	252	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
	253	0,
	254	};
	255
	256	/* SD Pull Control Disable:
	257	* SD_DAT[3:0] ==> pull down
	258	* SD_CD ==> pull up
	259	* SD_WP ==> pull down
	260	* SD_CMD ==> pull down
	261	* SD_CLK ==> pull down
	262	*/
	263	static const u32 rts5227_sd_pull_ctl_disable_tbl[] = {
	264	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	265	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
	266	0,
	267	};
	268
	269	/* MS Pull Control Enable:
	270	* MS CD ==> pull up
	271	* others ==> pull down
	272	*/
	273	static const u32 rts5227_ms_pull_ctl_enable_tbl[] = {
	274	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
	275	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
	276	0,
	277	};
	278
	279	/* MS Pull Control Disable:
	280	* MS CD ==> pull up
	281	* others ==> pull down
	282	*/
	283	static const u32 rts5227_ms_pull_ctl_disable_tbl[] = {
	284	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
	285	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
	286	0,
	287	};
	288
	289	void rts5227_init_params(struct rtsx_pcr *pcr)
	290	{
	291	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 \| EXTRA_CAPS_SD_SDR104;
	292	pcr->num_slots = 2;
	293	pcr->ops = &rts5227_pcr_ops;
	294
773ccdfd WW	295	pcr->flags = 0;
	296	pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
	297	pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
	298	pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
	299	pcr->aspm_en = ASPM_L1_EN;
84d72f9c WW	300	pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 27, 15);
84d72f9c WW	301	pcr->rx_initial_phase = SET_CLOCK_PHASE(30, 7, 7);
773ccdfd	302
e1237932 RT	303	pcr->sd_pull_ctl_enable_tbl = rts5227_sd_pull_ctl_enable_tbl;
	304	pcr->sd_pull_ctl_disable_tbl = rts5227_sd_pull_ctl_disable_tbl;
	305	pcr->ms_pull_ctl_enable_tbl = rts5227_ms_pull_ctl_enable_tbl;
	306	pcr->ms_pull_ctl_disable_tbl = rts5227_ms_pull_ctl_disable_tbl;
	307	}