[linux-2.6-block.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 u8 rts5227_get_ic_version(struct rtsx_pcr *pcr)
{
	u8 val;

	rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
	return val & 0x0F;
}

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);
	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 = 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 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, pcr->reg_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, PETXCFG, 0xB8, 0xB8);
	else
		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB8, 0x88);
	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, pcr->reg_pm_ctrl3, 0x10, 0x00);

	return rtsx_pci_send_cmd(pcr, 100);
}

static int rts5227_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;

	/* 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);
	return rtsx_pci_send_cmd(pcr, 100);
}

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->ic_version = rts5227_get_ic_version(pcr);
	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;

	pcr->reg_pm_ctrl3 = PM_CTRL3;
}

static int rts522a_optimize_phy(struct rtsx_pcr *pcr)
{
	int err;

	err = rtsx_pci_write_register(pcr, RTS522A_PM_CTRL3, D3_DELINK_MODE_EN,
		0x00);
	if (err < 0)
		return err;

	if (is_version(pcr, 0x522A, IC_VER_A)) {
		err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
			PHY_RCR2_INIT_27S);
		if (err)
			return err;

		rtsx_pci_write_phy_register(pcr, PHY_RCR1, PHY_RCR1_INIT_27S);
		rtsx_pci_write_phy_register(pcr, PHY_FLD0, PHY_FLD0_INIT_27S);
		rtsx_pci_write_phy_register(pcr, PHY_FLD3, PHY_FLD3_INIT_27S);
		rtsx_pci_write_phy_register(pcr, PHY_FLD4, PHY_FLD4_INIT_27S);
	}

	return 0;
}

static int rts522a_extra_init_hw(struct rtsx_pcr *pcr)
{
	rts5227_extra_init_hw(pcr);

	rtsx_pci_write_register(pcr, FUNC_FORCE_CTL, FUNC_FORCE_UPME_XMT_DBG,
		FUNC_FORCE_UPME_XMT_DBG);
	rtsx_pci_write_register(pcr, PCLK_CTL, 0x04, 0x04);
	rtsx_pci_write_register(pcr, PM_EVENT_DEBUG, PME_DEBUG_0, PME_DEBUG_0);
	rtsx_pci_write_register(pcr, PM_CLK_FORCE_CTL, 0xFF, 0x11);

	return 0;
}

/* rts522a operations mainly derived from rts5227, except phy/hw init setting.
 */
static const struct pcr_ops rts522a_pcr_ops = {
	.fetch_vendor_settings = rts5227_fetch_vendor_settings,
	.extra_init_hw = rts522a_extra_init_hw,
	.optimize_phy = rts522a_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,
};

void rts522a_init_params(struct rtsx_pcr *pcr)
{
	rts5227_init_params(pcr);

	pcr->reg_pm_ctrl3 = RTS522A_PM_CTRL3;
}
Commit	Line	Data
	1	/* Driver for Realtek PCI-Express card reader
	2	*
	3	* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
	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>
	20	* Roger Tseng <rogerable@realtek.com>
	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
	29	static u8 rts5227_get_ic_version(struct rtsx_pcr *pcr)
	30	{
	31	u8 val;
	32
	33	rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
	34	return val & 0x0F;
	35	}
	36
	37	static void rts5227_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
	38	{
	39	u8 driving_3v3[4][3] = {
	40	{0x13, 0x13, 0x13},
	41	{0x96, 0x96, 0x96},
	42	{0x7F, 0x7F, 0x7F},
	43	{0x96, 0x96, 0x96},
	44	};
	45	u8 driving_1v8[4][3] = {
	46	{0x99, 0x99, 0x99},
	47	{0xAA, 0xAA, 0xAA},
	48	{0xFE, 0xFE, 0xFE},
	49	{0xB3, 0xB3, 0xB3},
	50	};
	51	u8 (*driving)[3], drive_sel;
	52
	53	if (voltage == OUTPUT_3V3) {
	54	driving = driving_3v3;
	55	drive_sel = pcr->sd30_drive_sel_3v3;
	56	} else {
	57	driving = driving_1v8;
	58	drive_sel = pcr->sd30_drive_sel_1v8;
	59	}
	60
	61	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,
	62	0xFF, driving[drive_sel][0]);
	63	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,
	64	0xFF, driving[drive_sel][1]);
	65	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,
	66	0xFF, driving[drive_sel][2]);
	67	}
	68
	69	static void rts5227_fetch_vendor_settings(struct rtsx_pcr *pcr)
	70	{
	71	u32 reg;
	72
	73	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg);
	74	pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
	75
	76	if (!rtsx_vendor_setting_valid(reg))
	77	return;
	78
	79	pcr->aspm_en = rtsx_reg_to_aspm(reg);
	80	pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
	81	pcr->card_drive_sel &= 0x3F;
	82	pcr->card_drive_sel \|= rtsx_reg_to_card_drive_sel(reg);
	83
	84	rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, &reg);
	85	pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
	86	pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
	87	if (rtsx_reg_check_reverse_socket(reg))
	88	pcr->flags \|= PCR_REVERSE_SOCKET;
	89	}
	90
	91	static void rts5227_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
	92	{
	93	/* Set relink_time to 0 */
	94	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, 0xFF, 0);
	95	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, 0xFF, 0);
	96	rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3, 0x01, 0);
	97
	98	if (pm_state == HOST_ENTER_S3)
	99	rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x10, 0x10);
	100
	101	rtsx_pci_write_register(pcr, FPDCTL, 0x03, 0x03);
	102	}
	103
	104	static int rts5227_extra_init_hw(struct rtsx_pcr *pcr)
	105	{
	106	u16 cap;
	107
	108	rtsx_pci_init_cmd(pcr);
	109
	110	/* Configure GPIO as output */
	111	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, GPIO_CTL, 0x02, 0x02);
	112	/* Reset ASPM state to default value */
	113	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0);
	114	/* Switch LDO3318 source from DV33 to card_3v3 */
	115	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x00);
	116	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LDO_PWR_SEL, 0x03, 0x01);
	117	/* LED shine disabled, set initial shine cycle period */
	118	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OLT_LED_CTL, 0x0F, 0x02);
	119	/* Configure LTR */
	120	pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &cap);
	121	if (cap & PCI_EXP_DEVCTL2_LTR_EN)
	122	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, LTR_CTL, 0xFF, 0xA3);
	123	/* Configure OBFF */
	124	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OBFF_CFG, 0x03, 0x03);
	125	/* Configure driving */
	126	rts5227_fill_driving(pcr, OUTPUT_3V3);
	127	/* Configure force_clock_req */
	128	if (pcr->flags & PCR_REVERSE_SOCKET)
	129	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB8, 0xB8);
	130	else
	131	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB8, 0x88);
	132	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, pcr->reg_pm_ctrl3, 0x10, 0x00);
	133
	134	return rtsx_pci_send_cmd(pcr, 100);
	135	}
	136
	137	static int rts5227_optimize_phy(struct rtsx_pcr *pcr)
	138	{
	139	int err;
	140
	141	err = rtsx_pci_write_register(pcr, PM_CTRL3, D3_DELINK_MODE_EN, 0x00);
	142	if (err < 0)
	143	return err;
	144
	145	/* Optimize RX sensitivity */
	146	return rtsx_pci_write_phy_register(pcr, 0x00, 0xBA42);
	147	}
	148
	149	static int rts5227_turn_on_led(struct rtsx_pcr *pcr)
	150	{
	151	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02);
	152	}
	153
	154	static int rts5227_turn_off_led(struct rtsx_pcr *pcr)
	155	{
	156	return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
	157	}
	158
	159	static int rts5227_enable_auto_blink(struct rtsx_pcr *pcr)
	160	{
	161	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08);
	162	}
	163
	164	static int rts5227_disable_auto_blink(struct rtsx_pcr *pcr)
	165	{
	166	return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00);
	167	}
	168
	169	static int rts5227_card_power_on(struct rtsx_pcr *pcr, int card)
	170	{
	171	int err;
	172
	173	rtsx_pci_init_cmd(pcr);
	174	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	175	SD_POWER_MASK, SD_PARTIAL_POWER_ON);
	176	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
	177	LDO3318_PWR_MASK, 0x02);
	178	err = rtsx_pci_send_cmd(pcr, 100);
	179	if (err < 0)
	180	return err;
	181
	182	/* To avoid too large in-rush current */
	183	udelay(150);
	184
	185	rtsx_pci_init_cmd(pcr);
	186	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	187	SD_POWER_MASK, SD_POWER_ON);
	188	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
	189	LDO3318_PWR_MASK, 0x06);
	190	return rtsx_pci_send_cmd(pcr, 100);
	191	}
	192
	193	static int rts5227_card_power_off(struct rtsx_pcr *pcr, int card)
	194	{
	195	rtsx_pci_init_cmd(pcr);
	196	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL,
	197	SD_POWER_MASK \| PMOS_STRG_MASK,
	198	SD_POWER_OFF \| PMOS_STRG_400mA);
	199	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
	200	LDO3318_PWR_MASK, 0X00);
	201	return rtsx_pci_send_cmd(pcr, 100);
	202	}
	203
	204	static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
	205	{
	206	int err;
	207
	208	if (voltage == OUTPUT_3V3) {
	209	err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 \| 0x24);
	210	if (err < 0)
	211	return err;
	212	} else if (voltage == OUTPUT_1V8) {
	213	err = rtsx_pci_write_phy_register(pcr, 0x11, 0x3C02);
	214	if (err < 0)
	215	return err;
	216	err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C80 \| 0x24);
	217	if (err < 0)
	218	return err;
	219	} else {
	220	return -EINVAL;
	221	}
	222
	223	/* set pad drive */
	224	rtsx_pci_init_cmd(pcr);
	225	rts5227_fill_driving(pcr, voltage);
	226	return rtsx_pci_send_cmd(pcr, 100);
	227	}
	228
	229	static const struct pcr_ops rts5227_pcr_ops = {
	230	.fetch_vendor_settings = rts5227_fetch_vendor_settings,
	231	.extra_init_hw = rts5227_extra_init_hw,
	232	.optimize_phy = rts5227_optimize_phy,
	233	.turn_on_led = rts5227_turn_on_led,
	234	.turn_off_led = rts5227_turn_off_led,
	235	.enable_auto_blink = rts5227_enable_auto_blink,
	236	.disable_auto_blink = rts5227_disable_auto_blink,
	237	.card_power_on = rts5227_card_power_on,
	238	.card_power_off = rts5227_card_power_off,
	239	.switch_output_voltage = rts5227_switch_output_voltage,
	240	.cd_deglitch = NULL,
	241	.conv_clk_and_div_n = NULL,
	242	.force_power_down = rts5227_force_power_down,
	243	};
	244
	245	/* SD Pull Control Enable:
	246	* SD_DAT[3:0] ==> pull up
	247	* SD_CD ==> pull up
	248	* SD_WP ==> pull up
	249	* SD_CMD ==> pull up
	250	* SD_CLK ==> pull down
	251	*/
	252	static const u32 rts5227_sd_pull_ctl_enable_tbl[] = {
	253	RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA),
	254	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9),
	255	0,
	256	};
	257
	258	/* SD Pull Control Disable:
	259	* SD_DAT[3:0] ==> pull down
	260	* SD_CD ==> pull up
	261	* SD_WP ==> pull down
	262	* SD_CMD ==> pull down
	263	* SD_CLK ==> pull down
	264	*/
	265	static const u32 rts5227_sd_pull_ctl_disable_tbl[] = {
	266	RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
	267	RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
	268	0,
	269	};
	270
	271	/* MS Pull Control Enable:
	272	* MS CD ==> pull up
	273	* others ==> pull down
	274	*/
	275	static const u32 rts5227_ms_pull_ctl_enable_tbl[] = {
	276	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
	277	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
	278	0,
	279	};
	280
	281	/* MS Pull Control Disable:
	282	* MS CD ==> pull up
	283	* others ==> pull down
	284	*/
	285	static const u32 rts5227_ms_pull_ctl_disable_tbl[] = {
	286	RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55),
	287	RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15),
	288	0,
	289	};
	290
	291	void rts5227_init_params(struct rtsx_pcr *pcr)
	292	{
	293	pcr->extra_caps = EXTRA_CAPS_SD_SDR50 \| EXTRA_CAPS_SD_SDR104;
	294	pcr->num_slots = 2;
	295	pcr->ops = &rts5227_pcr_ops;
	296
	297	pcr->flags = 0;
	298	pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
	299	pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
	300	pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
	301	pcr->aspm_en = ASPM_L1_EN;
	302	pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 27, 15);
	303	pcr->rx_initial_phase = SET_CLOCK_PHASE(30, 7, 7);
	304
	305	pcr->ic_version = rts5227_get_ic_version(pcr);
	306	pcr->sd_pull_ctl_enable_tbl = rts5227_sd_pull_ctl_enable_tbl;
	307	pcr->sd_pull_ctl_disable_tbl = rts5227_sd_pull_ctl_disable_tbl;
	308	pcr->ms_pull_ctl_enable_tbl = rts5227_ms_pull_ctl_enable_tbl;
	309	pcr->ms_pull_ctl_disable_tbl = rts5227_ms_pull_ctl_disable_tbl;
	310
	311	pcr->reg_pm_ctrl3 = PM_CTRL3;
	312	}
	313
	314	static int rts522a_optimize_phy(struct rtsx_pcr *pcr)
	315	{
	316	int err;
	317
	318	err = rtsx_pci_write_register(pcr, RTS522A_PM_CTRL3, D3_DELINK_MODE_EN,
	319	0x00);
	320	if (err < 0)
	321	return err;
	322
	323	if (is_version(pcr, 0x522A, IC_VER_A)) {
	324	err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
	325	PHY_RCR2_INIT_27S);
	326	if (err)
	327	return err;
	328
	329	rtsx_pci_write_phy_register(pcr, PHY_RCR1, PHY_RCR1_INIT_27S);
	330	rtsx_pci_write_phy_register(pcr, PHY_FLD0, PHY_FLD0_INIT_27S);
	331	rtsx_pci_write_phy_register(pcr, PHY_FLD3, PHY_FLD3_INIT_27S);
	332	rtsx_pci_write_phy_register(pcr, PHY_FLD4, PHY_FLD4_INIT_27S);
	333	}
	334
	335	return 0;
	336	}
	337
	338	static int rts522a_extra_init_hw(struct rtsx_pcr *pcr)
	339	{
	340	rts5227_extra_init_hw(pcr);
	341
	342	rtsx_pci_write_register(pcr, FUNC_FORCE_CTL, FUNC_FORCE_UPME_XMT_DBG,
	343	FUNC_FORCE_UPME_XMT_DBG);
	344	rtsx_pci_write_register(pcr, PCLK_CTL, 0x04, 0x04);
	345	rtsx_pci_write_register(pcr, PM_EVENT_DEBUG, PME_DEBUG_0, PME_DEBUG_0);
	346	rtsx_pci_write_register(pcr, PM_CLK_FORCE_CTL, 0xFF, 0x11);
	347
	348	return 0;
	349	}
	350
	351	/* rts522a operations mainly derived from rts5227, except phy/hw init setting.
	352	*/
	353	static const struct pcr_ops rts522a_pcr_ops = {
	354	.fetch_vendor_settings = rts5227_fetch_vendor_settings,
	355	.extra_init_hw = rts522a_extra_init_hw,
	356	.optimize_phy = rts522a_optimize_phy,
	357	.turn_on_led = rts5227_turn_on_led,
	358	.turn_off_led = rts5227_turn_off_led,
	359	.enable_auto_blink = rts5227_enable_auto_blink,
	360	.disable_auto_blink = rts5227_disable_auto_blink,
	361	.card_power_on = rts5227_card_power_on,
	362	.card_power_off = rts5227_card_power_off,
	363	.switch_output_voltage = rts5227_switch_output_voltage,
	364	.cd_deglitch = NULL,
	365	.conv_clk_and_div_n = NULL,
	366	.force_power_down = rts5227_force_power_down,
	367	};
	368
	369	void rts522a_init_params(struct rtsx_pcr *pcr)
	370	{
	371	rts5227_init_params(pcr);
	372
	373	pcr->reg_pm_ctrl3 = RTS522A_PM_CTRL3;
	374	}