diff options
Diffstat (limited to 'drivers/mfd/rts5209.c')
| -rw-r--r-- | drivers/mfd/rts5209.c | 277 |
1 files changed, 0 insertions, 277 deletions
diff --git a/drivers/mfd/rts5209.c b/drivers/mfd/rts5209.c deleted file mode 100644 index b95beecf767f..000000000000 --- a/drivers/mfd/rts5209.c +++ /dev/null @@ -1,277 +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> - */ - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/mfd/rtsx_pci.h> - -#include "rtsx_pcr.h" - -static u8 rts5209_get_ic_version(struct rtsx_pcr *pcr) -{ - u8 val; - - val = rtsx_pci_readb(pcr, 0x1C); - return val & 0x0F; -} - -static void rts5209_fetch_vendor_settings(struct rtsx_pcr *pcr) -{ - u32 reg; - - rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, ®); - pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg); - - if (rts5209_vendor_setting1_valid(reg)) { - if (rts5209_reg_check_ms_pmos(reg)) - pcr->flags |= PCR_MS_PMOS; - pcr->aspm_en = rts5209_reg_to_aspm(reg); - } - - rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, ®); - pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg); - - if (rts5209_vendor_setting2_valid(reg)) { - pcr->sd30_drive_sel_1v8 = - rts5209_reg_to_sd30_drive_sel_1v8(reg); - pcr->sd30_drive_sel_3v3 = - rts5209_reg_to_sd30_drive_sel_3v3(reg); - pcr->card_drive_sel = rts5209_reg_to_card_drive_sel(reg); - } -} - -static void rts5209_force_power_down(struct rtsx_pcr *pcr, u8 pm_state) -{ - rtsx_pci_write_register(pcr, FPDCTL, 0x07, 0x07); -} - -static int rts5209_extra_init_hw(struct rtsx_pcr *pcr) -{ - rtsx_pci_init_cmd(pcr); - - /* Turn off LED */ - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_GPIO, 0xFF, 0x03); - /* Reset ASPM state to default value */ - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, ASPM_FORCE_CTL, 0x3F, 0); - /* Force CLKREQ# PIN to drive 0 to request clock */ - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0x08, 0x08); - /* Configure GPIO as output */ - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_GPIO_DIR, 0xFF, 0x03); - /* Configure driving */ - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DRIVE_SEL, - 0xFF, pcr->sd30_drive_sel_3v3); - - return rtsx_pci_send_cmd(pcr, 100); -} - -static int rts5209_optimize_phy(struct rtsx_pcr *pcr) -{ - return rtsx_pci_write_phy_register(pcr, 0x00, 0xB966); -} - -static int rts5209_turn_on_led(struct rtsx_pcr *pcr) -{ - return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x00); -} - -static int rts5209_turn_off_led(struct rtsx_pcr *pcr) -{ - return rtsx_pci_write_register(pcr, CARD_GPIO, 0x01, 0x01); -} - -static int rts5209_enable_auto_blink(struct rtsx_pcr *pcr) -{ - return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0xFF, 0x0D); -} - -static int rts5209_disable_auto_blink(struct rtsx_pcr *pcr) -{ - return rtsx_pci_write_register(pcr, CARD_AUTO_BLINK, 0x08, 0x00); -} - -static int rts5209_card_power_on(struct rtsx_pcr *pcr, int card) -{ - int err; - u8 pwr_mask, partial_pwr_on, pwr_on; - - pwr_mask = SD_POWER_MASK; - partial_pwr_on = SD_PARTIAL_POWER_ON; - pwr_on = SD_POWER_ON; - - if ((pcr->flags & PCR_MS_PMOS) && (card == RTSX_MS_CARD)) { - pwr_mask = MS_POWER_MASK; - partial_pwr_on = MS_PARTIAL_POWER_ON; - pwr_on = MS_POWER_ON; - } - - rtsx_pci_init_cmd(pcr); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, - pwr_mask, partial_pwr_on); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, - LDO3318_PWR_MASK, 0x04); - 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, pwr_mask, pwr_on); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, - LDO3318_PWR_MASK, 0x00); - return rtsx_pci_send_cmd(pcr, 100); -} - -static int rts5209_card_power_off(struct rtsx_pcr *pcr, int card) -{ - u8 pwr_mask, pwr_off; - - pwr_mask = SD_POWER_MASK; - pwr_off = SD_POWER_OFF; - - if ((pcr->flags & PCR_MS_PMOS) && (card == RTSX_MS_CARD)) { - pwr_mask = MS_POWER_MASK; - pwr_off = MS_POWER_OFF; - } - - rtsx_pci_init_cmd(pcr); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, - pwr_mask | PMOS_STRG_MASK, pwr_off | PMOS_STRG_400mA); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, - LDO3318_PWR_MASK, 0x06); - return rtsx_pci_send_cmd(pcr, 100); -} - -static int rts5209_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) -{ - int err; - - if (voltage == OUTPUT_3V3) { - err = rtsx_pci_write_register(pcr, - SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_3v3); - if (err < 0) - return err; - err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24); - if (err < 0) - return err; - } 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; - err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24); - if (err < 0) - return err; - } else { - return -EINVAL; - } - - return 0; -} - -static const struct pcr_ops rts5209_pcr_ops = { - .fetch_vendor_settings = rts5209_fetch_vendor_settings, - .extra_init_hw = rts5209_extra_init_hw, - .optimize_phy = rts5209_optimize_phy, - .turn_on_led = rts5209_turn_on_led, - .turn_off_led = rts5209_turn_off_led, - .enable_auto_blink = rts5209_enable_auto_blink, - .disable_auto_blink = rts5209_disable_auto_blink, - .card_power_on = rts5209_card_power_on, - .card_power_off = rts5209_card_power_off, - .switch_output_voltage = rts5209_switch_output_voltage, - .cd_deglitch = NULL, - .conv_clk_and_div_n = NULL, - .force_power_down = rts5209_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 rts5209_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, 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 rts5209_sd_pull_ctl_disable_tbl[] = { - RTSX_REG_PAIR(CARD_PULL_CTL1, 0x55), - 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 rts5209_ms_pull_ctl_enable_tbl[] = { - RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), - 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 rts5209_ms_pull_ctl_disable_tbl[] = { - RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), - RTSX_REG_PAIR(CARD_PULL_CTL5, 0x55), - RTSX_REG_PAIR(CARD_PULL_CTL6, 0x15), - 0, -}; - -void rts5209_init_params(struct rtsx_pcr *pcr) -{ - pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | - EXTRA_CAPS_SD_SDR104 | EXTRA_CAPS_MMC_8BIT; - pcr->num_slots = 2; - pcr->ops = &rts5209_pcr_ops; - - pcr->flags = 0; - pcr->card_drive_sel = RTS5209_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(27, 27, 16); - pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5); - - pcr->ic_version = rts5209_get_ic_version(pcr); - pcr->sd_pull_ctl_enable_tbl = rts5209_sd_pull_ctl_enable_tbl; - pcr->sd_pull_ctl_disable_tbl = rts5209_sd_pull_ctl_disable_tbl; - pcr->ms_pull_ctl_enable_tbl = rts5209_ms_pull_ctl_enable_tbl; - pcr->ms_pull_ctl_disable_tbl = rts5209_ms_pull_ctl_disable_tbl; -} |