From: Wei WANG <wei_wang@xxxxxxxxxxxxxx> Support new model: RTS5249 Signed-off-by: Wei WANG <wei_wang@xxxxxxxxxxxxxx> --- drivers/mfd/Makefile | 2 +- drivers/mfd/rts5249.c | 245 ++++++++++++++++++++++++++++++++++++++++++ drivers/mfd/rtsx_pcr.c | 5 + drivers/mfd/rtsx_pcr.h | 1 + include/linux/mfd/rtsx_pci.h | 2 + 5 files changed, 254 insertions(+), 1 deletion(-) create mode 100644 drivers/mfd/rts5249.c diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index b90409c..f61ac02 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -9,7 +9,7 @@ obj-$(CONFIG_MFD_88PM805) += 88pm805.o 88pm80x.o obj-$(CONFIG_MFD_SM501) += sm501.o obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o -rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o +rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o obj-$(CONFIG_MFD_RTSX_PCI) += rtsx_pci.o obj-$(CONFIG_HTC_EGPIO) += htc-egpio.o diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c new file mode 100644 index 0000000..24a1861 --- /dev/null +++ b/drivers/mfd/rts5249.c @@ -0,0 +1,245 @@ +/* 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@xxxxxxxxxxxxxx> + * No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/mfd/rtsx_pci.h> + +#include "rtsx_pcr.h" + +static u8 rts5249_get_ic_version(struct rtsx_pcr *pcr) +{ + u8 val; + + rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val); + return val & 0x0F; +} + +static int rts5249_extra_init_hw(struct rtsx_pcr *pcr) +{ + 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 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, 0x99); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + SD30_CMD_DRIVE_SEL, 0xFF, 0x99); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, + SD30_DAT_DRIVE_SEL, 0xFF, 0x92); + + return rtsx_pci_send_cmd(pcr, 100); +} + +static int rts5249_optimize_phy(struct rtsx_pcr *pcr) +{ + int err; + + err = rtsx_pci_write_phy_register(pcr, 0x19, 0xFE46); + if (err < 0) + return err; + + mdelay(1); + + return rtsx_pci_write_phy_register(pcr, 0x0A, 0x05C0); +} + +static int rts5249_turn_on_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x02); +} + +static int rts5249_turn_off_led(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00); +} + +static int rts5249_enable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x08); +} + +static int rts5249_disable_auto_blink(struct rtsx_pcr *pcr) +{ + return rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x08, 0x00); +} + +static int rts5249_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_VCC_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; + + msleep(5); + + rtsx_pci_init_cmd(pcr); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_PWR_CTL, + SD_POWER_MASK, SD_VCC_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 rts5249_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, SD_POWER_OFF); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL, + LDO3318_PWR_MASK, 0x00); + return rtsx_pci_send_cmd(pcr, 100); +} + +static int rts5249_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage) +{ + int err; + u8 clk_drive, cmd_drive, dat_drive; + + if (voltage == OUTPUT_3V3) { + err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24); + if (err < 0) + return err; + clk_drive = 0x99; + cmd_drive = 0x99; + dat_drive = 0x92; + } 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, 0x4C40 | 0x24); + if (err < 0) + return err; + clk_drive = 0xb3; + cmd_drive = 0xb3; + dat_drive = 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, clk_drive); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_CMD_DRIVE_SEL, + 0xFF, cmd_drive); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD30_DAT_DRIVE_SEL, + 0xFF, dat_drive); + return rtsx_pci_send_cmd(pcr, 100); +} + +static const struct pcr_ops rts5249_pcr_ops = { + .extra_init_hw = rts5249_extra_init_hw, + .optimize_phy = rts5249_optimize_phy, + .turn_on_led = rts5249_turn_on_led, + .turn_off_led = rts5249_turn_off_led, + .enable_auto_blink = rts5249_enable_auto_blink, + .disable_auto_blink = rts5249_disable_auto_blink, + .card_power_on = rts5249_card_power_on, + .card_power_off = rts5249_card_power_off, + .switch_output_voltage = rts5249_switch_output_voltage, +}; + +/* 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 rts5249_sd_pull_ctl_enable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0xAA), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xE9), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0xAA), + 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 rts5249_sd_pull_ctl_disable_tbl[] = { + RTSX_REG_PAIR(CARD_PULL_CTL1, 0x66), + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55), + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5), + RTSX_REG_PAIR(CARD_PULL_CTL4, 0x55), + 0, +}; + +/* MS Pull Control Enable: + * MS CD ==> pull up + * others ==> pull down + */ +static const u32 rts5249_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 rts5249_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 rts5249_init_params(struct rtsx_pcr *pcr) +{ + pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104; + pcr->num_slots = 2; + pcr->ops = &rts5249_pcr_ops; + + pcr->ic_version = rts5249_get_ic_version(pcr); + pcr->sd_pull_ctl_enable_tbl = rts5249_sd_pull_ctl_enable_tbl; + pcr->sd_pull_ctl_disable_tbl = rts5249_sd_pull_ctl_disable_tbl; + pcr->ms_pull_ctl_enable_tbl = rts5249_ms_pull_ctl_enable_tbl; + pcr->ms_pull_ctl_disable_tbl = rts5249_ms_pull_ctl_disable_tbl; +} diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 2f12cc1..62b0e12 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -56,6 +56,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = { { 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 }, + { PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 }, { 0, } }; @@ -1033,6 +1034,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr) case 0x5227: rts5227_init_params(pcr); break; + + case 0x5249: + rts5249_init_params(pcr); + break; } dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n", diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h index 2b3ab8a..55fcfc2 100644 --- a/drivers/mfd/rtsx_pcr.h +++ b/drivers/mfd/rtsx_pcr.h @@ -32,5 +32,6 @@ 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); +void rts5249_init_params(struct rtsx_pcr *pcr); #endif diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h index 26ea7f1..ffb880b 100644 --- a/include/linux/mfd/rtsx_pci.h +++ b/include/linux/mfd/rtsx_pci.h @@ -500,6 +500,8 @@ #define BPP_POWER_15_PERCENT_ON 0x08 #define BPP_POWER_ON 0x00 #define BPP_POWER_MASK 0x0F +#define SD_VCC_PARTIAL_POWER_ON 0x02 +#define SD_VCC_POWER_ON 0x00 /* PWR_GATE_CTRL */ #define PWR_GATE_EN 0x01 -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
