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Commit e1237932 authored by Roger Tseng's avatar Roger Tseng Committed by Samuel Ortiz
Browse files

mfd: rtsx: Support RTS5227 



Support new model RTS5227.

Signed-off-by: default avatarRoger Tseng <rogerable@realtek.com>
Reviewed-by: default avatarWei WANG <wei_wang@realsil.com.cn>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 88a7ee37

drivers/mfd/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -9,7 +9,7 @@ obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o 
obj-$(CONFIG_MFD_SM501)		+= sm501.o

obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o



rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o

rtsx_pci-objs			:= rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o

obj-$(CONFIG_MFD_RTSX_PCI)	+= rtsx_pci.o



obj-$(CONFIG_HTC_EGPIO)		+= htc-egpio.o

drivers/mfd/rts5227.c

0 → 100644
+234 −0
Original line number Diff line number Diff line 
/* Driver for Realtek PCI-Express card reader

 *

 * Copyright(c) 2009 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>

 *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China

 *

 *   Roger Tseng <rogerable@realtek.com>

 *   No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan

 */



#include <linux/module.h>

#include <linux/delay.h>

#include <linux/mfd/rtsx_pci.h>



#include "rtsx_pcr.h"



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);

	/* 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_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 force_clock_req

	 * Maybe We should define 0xFF03 as some name

	 */

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, 0xFF03, 0x08, 0x08);

	/* Correct driving */

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,

			SD30_CLK_DRIVE_SEL, 0xFF, 0x96);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,

			SD30_CMD_DRIVE_SEL, 0xFF, 0x96);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,

			SD30_DAT_DRIVE_SEL, 0xFF, 0x96);



	return rtsx_pci_send_cmd(pcr, 100);

}



static int rts5227_optimize_phy(struct rtsx_pcr *pcr)

{

	/* 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;

	u8 drive_sel;



	if (voltage == OUTPUT_3V3) {

		err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24);

		if (err < 0)

			return err;

		drive_sel = 0x96;

	} 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;

		drive_sel = 0xB3;

	} else {

		return -EINVAL;

	}



	/* set pad drive */

	rtsx_pci_init_cmd(pcr);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CLK_DRIVE_SEL,

			0xFF, drive_sel);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL,

			0xFF, drive_sel);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL,

			0xFF, drive_sel);

	return rtsx_pci_send_cmd(pcr, 100);

}



static const struct pcr_ops rts5227_pcr_ops = {

	.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,

};



/* 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->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;

}

drivers/mfd/rtsx_pcr.c

+5 −0
Original line number Diff line number Diff line
@@ -55,6 +55,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = { 
	{ PCI_DEVICE(0x10EC, 0x5209), PCI_CLASS_OTHERS << 16, 0xFF0000 },

	{ PCI_DEVICE(0x10EC, 0x5229), PCI_CLASS_OTHERS << 16, 0xFF0000 },

	{ PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 },

	{ PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 },

	{ 0, }

};
@@ -998,6 +999,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr) 
	case 0x5289:

		rtl8411_init_params(pcr);

		break;



	case 0x5227:

		rts5227_init_params(pcr);

		break;

	}



	dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n",

drivers/mfd/rtsx_pcr.h

+1 −0
Original line number Diff line number Diff line
@@ -31,5 +31,6 @@ 
void rts5209_init_params(struct rtsx_pcr *pcr);

void rts5229_init_params(struct rtsx_pcr *pcr);

void rtl8411_init_params(struct rtsx_pcr *pcr);

void rts5227_init_params(struct rtsx_pcr *pcr);



#endif

include/linux/mfd/rtsx_pci.h

+5 −0
Original line number Diff line number Diff line
@@ -581,8 +581,11 @@ 
#define CARD_GPIO_DIR			0xFD57

#define CARD_GPIO			0xFD58

#define CARD_DATA_SOURCE		0xFD5B

#define SD30_CLK_DRIVE_SEL		0xFD5A

#define CARD_SELECT			0xFD5C

#define SD30_DRIVE_SEL			0xFD5E

#define SD30_CMD_DRIVE_SEL		0xFD5E

#define SD30_DAT_DRIVE_SEL		0xFD5F

#define CARD_CLK_EN			0xFD69

#define SDIO_CTRL			0xFD6B

#define CD_PAD_CTL			0xFD73
@@ -655,6 +658,8 @@ 
#define MSGTXDATA3			0xFE47

#define MSGTXCTL			0xFE48

#define PETXCFG				0xFE49

#define LTR_CTL				0xFE4A

#define OBFF_CFG			0xFE4C



#define CDRESUMECTL			0xFE52

#define WAKE_SEL_CTL			0xFE54