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yaml --- r: 357611 b: refs/heads/master c: e123793 h: refs/heads/master i: 357609: 44d8f1f 357607: 6d8fb2d v: v3
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Roger Tseng
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refs/heads/master: 88a7ee37f3c5c73b000f7ba2000b27c5002a5286 | ||
refs/heads/master: e12379320b2e1ceffc4211ad174989bc042149d9 |
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/* 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 | ||
*/ | ||
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#include <linux/module.h> | ||
#include <linux/delay.h> | ||
#include <linux/mfd/rtsx_pci.h> | ||
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#include "rtsx_pcr.h" | ||
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static int rts5227_extra_init_hw(struct rtsx_pcr *pcr) | ||
{ | ||
u16 cap; | ||
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rtsx_pci_init_cmd(pcr); | ||
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/* 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); | ||
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return rtsx_pci_send_cmd(pcr, 100); | ||
} | ||
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static int rts5227_optimize_phy(struct rtsx_pcr *pcr) | ||
{ | ||
/* Optimize RX sensitivity */ | ||
return rtsx_pci_write_phy_register(pcr, 0x00, 0xBA42); | ||
} | ||
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static int rts5227_turn_on_led(struct rtsx_pcr *pcr) | ||
{ | ||
return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02); | ||
} | ||
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static int rts5227_turn_off_led(struct rtsx_pcr *pcr) | ||
{ | ||
return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00); | ||
} | ||
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static int rts5227_enable_auto_blink(struct rtsx_pcr *pcr) | ||
{ | ||
return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08); | ||
} | ||
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static int rts5227_disable_auto_blink(struct rtsx_pcr *pcr) | ||
{ | ||
return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00); | ||
} | ||
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static int rts5227_card_power_on(struct rtsx_pcr *pcr, int card) | ||
{ | ||
int err; | ||
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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; | ||
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/* To avoid too large in-rush current */ | ||
udelay(150); | ||
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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; | ||
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return 0; | ||
} | ||
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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); | ||
} | ||
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static int rts5227_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) | ||
{ | ||
int err; | ||
u8 drive_sel; | ||
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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; | ||
} | ||
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/* 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); | ||
} | ||
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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, | ||
}; | ||
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/* 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, | ||
}; | ||
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/* 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, | ||
}; | ||
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/* 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, | ||
}; | ||
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/* 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, | ||
}; | ||
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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; | ||
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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; | ||
} |
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