diff options
Diffstat (limited to 'drivers/mfd/rtl8411.c')
| -rw-r--r-- | drivers/mfd/rtl8411.c | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c deleted file mode 100644 index b3ae6592014a..000000000000 --- a/drivers/mfd/rtl8411.c +++ /dev/null @@ -1,508 +0,0 @@ -/* 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/mfd/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, ®1); - 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, ®3); - 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, ®); - 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); -} |