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linux-stable/drivers/misc/cardreader/rts5260.c
Thomas Gleixner aaf4989bd4 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 17 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 13 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.236620792@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:46 +02:00

699 lines
19 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-or-later
/* Driver for Realtek PCI-Express card reader
*
* Copyright(c) 2016-2017 Realtek Semiconductor Corp. All rights reserved.
*
* Author:
* Steven FENG <steven_feng@realsil.com.cn>
* Rui FENG <rui_feng@realsil.com.cn>
* Wei WANG <wei_wang@realsil.com.cn>
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/rtsx_pci.h>
#include "rts5260.h"
#include "rtsx_pcr.h"
static u8 rts5260_get_ic_version(struct rtsx_pcr *pcr)
{
u8 val;
rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
return val & IC_VERSION_MASK;
}
static void rts5260_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
{
u8 driving_3v3[6][3] = {
{0x94, 0x94, 0x94},
{0x11, 0x11, 0x18},
{0x55, 0x55, 0x5C},
{0x94, 0x94, 0x94},
{0x94, 0x94, 0x94},
{0xFF, 0xFF, 0xFF},
};
u8 driving_1v8[6][3] = {
{0x9A, 0x89, 0x89},
{0xC4, 0xC4, 0xC4},
{0x3C, 0x3C, 0x3C},
{0x9B, 0x99, 0x99},
{0x9A, 0x89, 0x89},
{0xFE, 0xFE, 0xFE},
};
u8 (*driving)[3], drive_sel;
if (voltage == OUTPUT_3V3) {
driving = driving_3v3;
drive_sel = pcr->sd30_drive_sel_3v3;
} else {
driving = driving_1v8;
drive_sel = pcr->sd30_drive_sel_1v8;
}
rtsx_pci_write_register(pcr, SD30_CLK_DRIVE_SEL,
0xFF, driving[drive_sel][0]);
rtsx_pci_write_register(pcr, SD30_CMD_DRIVE_SEL,
0xFF, driving[drive_sel][1]);
rtsx_pci_write_register(pcr, SD30_CMD_DRIVE_SEL,
0xFF, driving[drive_sel][2]);
}
static void rtsx_base_fetch_vendor_settings(struct rtsx_pcr *pcr)
{
u32 reg;
rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG1, &reg);
pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG1, reg);
if (!rtsx_vendor_setting_valid(reg)) {
pcr_dbg(pcr, "skip fetch vendor setting\n");
return;
}
pcr->aspm_en = rtsx_reg_to_aspm(reg);
pcr->sd30_drive_sel_1v8 = rtsx_reg_to_sd30_drive_sel_1v8(reg);
pcr->card_drive_sel &= 0x3F;
pcr->card_drive_sel |= rtsx_reg_to_card_drive_sel(reg);
rtsx_pci_read_config_dword(pcr, PCR_SETTING_REG2, &reg);
pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, reg);
pcr->sd30_drive_sel_3v3 = rtsx_reg_to_sd30_drive_sel_3v3(reg);
if (rtsx_reg_check_reverse_socket(reg))
pcr->flags |= PCR_REVERSE_SOCKET;
}
static void rtsx_base_force_power_down(struct rtsx_pcr *pcr, u8 pm_state)
{
/* Set relink_time to 0 */
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 1, MASK_8_BIT_DEF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 2, MASK_8_BIT_DEF, 0);
rtsx_pci_write_register(pcr, AUTOLOAD_CFG_BASE + 3,
RELINK_TIME_MASK, 0);
if (pm_state == HOST_ENTER_S3)
rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3,
D3_DELINK_MODE_EN, D3_DELINK_MODE_EN);
rtsx_pci_write_register(pcr, FPDCTL, ALL_POWER_DOWN, ALL_POWER_DOWN);
}
static int rtsx_base_enable_auto_blink(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, OLT_LED_CTL,
LED_SHINE_MASK, LED_SHINE_EN);
}
static int rtsx_base_disable_auto_blink(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, OLT_LED_CTL,
LED_SHINE_MASK, LED_SHINE_DISABLE);
}
static int rts5260_turn_on_led(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, RTS5260_REG_GPIO_CTL0,
RTS5260_REG_GPIO_MASK, RTS5260_REG_GPIO_ON);
}
static int rts5260_turn_off_led(struct rtsx_pcr *pcr)
{
return rtsx_pci_write_register(pcr, RTS5260_REG_GPIO_CTL0,
RTS5260_REG_GPIO_MASK, RTS5260_REG_GPIO_OFF);
}
/* 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 rts5260_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 rts5260_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 rts5260_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 rts5260_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,
};
static int sd_set_sample_push_timing_sd30(struct rtsx_pcr *pcr)
{
rtsx_pci_write_register(pcr, SD_CFG1, SD_MODE_SELECT_MASK
| SD_ASYNC_FIFO_NOT_RST, SD_30_MODE | SD_ASYNC_FIFO_NOT_RST);
rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, CLK_LOW_FREQ);
rtsx_pci_write_register(pcr, CARD_CLK_SOURCE, 0xFF,
CRC_VAR_CLK0 | SD30_FIX_CLK | SAMPLE_VAR_CLK1);
rtsx_pci_write_register(pcr, CLK_CTL, CLK_LOW_FREQ, 0);
return 0;
}
static int rts5260_card_power_on(struct rtsx_pcr *pcr, int card)
{
int err = 0;
struct rtsx_cr_option *option = &pcr->option;
if (option->ocp_en)
rtsx_pci_enable_ocp(pcr);
rtsx_pci_write_register(pcr, LDO_CONFIG2, DV331812_VDD1, DV331812_VDD1);
rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
RTS5260_DVCC_TUNE_MASK, RTS5260_DVCC_33);
rtsx_pci_write_register(pcr, LDO_VCC_CFG1, LDO_POW_SDVDD1_MASK,
LDO_POW_SDVDD1_ON);
rtsx_pci_write_register(pcr, LDO_CONFIG2,
DV331812_POWERON, DV331812_POWERON);
msleep(20);
if (pcr->extra_caps & EXTRA_CAPS_SD_SDR50 ||
pcr->extra_caps & EXTRA_CAPS_SD_SDR104)
sd_set_sample_push_timing_sd30(pcr);
/* Initialize SD_CFG1 register */
rtsx_pci_write_register(pcr, SD_CFG1, 0xFF,
SD_CLK_DIVIDE_128 | SD_20_MODE);
rtsx_pci_write_register(pcr, SD_SAMPLE_POINT_CTL,
0xFF, SD20_RX_POS_EDGE);
rtsx_pci_write_register(pcr, SD_PUSH_POINT_CTL, 0xFF, 0);
rtsx_pci_write_register(pcr, CARD_STOP, SD_STOP | SD_CLR_ERR,
SD_STOP | SD_CLR_ERR);
/* Reset SD_CFG3 register */
rtsx_pci_write_register(pcr, SD_CFG3, SD30_CLK_END_EN, 0);
rtsx_pci_write_register(pcr, REG_SD_STOP_SDCLK_CFG,
SD30_CLK_STOP_CFG_EN | SD30_CLK_STOP_CFG1 |
SD30_CLK_STOP_CFG0, 0);
rtsx_pci_write_register(pcr, REG_PRE_RW_MODE, EN_INFINITE_MODE, 0);
return err;
}
static int rts5260_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
{
switch (voltage) {
case OUTPUT_3V3:
rtsx_pci_write_register(pcr, LDO_CONFIG2,
DV331812_VDD1, DV331812_VDD1);
rtsx_pci_write_register(pcr, LDO_DV18_CFG,
DV331812_MASK, DV331812_33);
rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8, 0);
break;
case OUTPUT_1V8:
rtsx_pci_write_register(pcr, LDO_CONFIG2,
DV331812_VDD1, DV331812_VDD1);
rtsx_pci_write_register(pcr, LDO_DV18_CFG,
DV331812_MASK, DV331812_17);
rtsx_pci_write_register(pcr, SD_PAD_CTL, SD_IO_USING_1V8,
SD_IO_USING_1V8);
break;
default:
return -EINVAL;
}
/* set pad drive */
rts5260_fill_driving(pcr, voltage);
return 0;
}
static void rts5260_stop_cmd(struct rtsx_pcr *pcr)
{
rtsx_pci_writel(pcr, RTSX_HCBCTLR, STOP_CMD);
rtsx_pci_writel(pcr, RTSX_HDBCTLR, STOP_DMA);
rtsx_pci_write_register(pcr, RTS5260_DMA_RST_CTL_0,
RTS5260_DMA_RST | RTS5260_ADMA3_RST,
RTS5260_DMA_RST | RTS5260_ADMA3_RST);
rtsx_pci_write_register(pcr, RBCTL, RB_FLUSH, RB_FLUSH);
}
static void rts5260_card_before_power_off(struct rtsx_pcr *pcr)
{
rts5260_stop_cmd(pcr);
rts5260_switch_output_voltage(pcr, OUTPUT_3V3);
}
static int rts5260_card_power_off(struct rtsx_pcr *pcr, int card)
{
int err = 0;
rts5260_card_before_power_off(pcr);
err = rtsx_pci_write_register(pcr, LDO_VCC_CFG1,
LDO_POW_SDVDD1_MASK, LDO_POW_SDVDD1_OFF);
err = rtsx_pci_write_register(pcr, LDO_CONFIG2,
DV331812_POWERON, DV331812_POWEROFF);
if (pcr->option.ocp_en)
rtsx_pci_disable_ocp(pcr);
return err;
}
static void rts5260_init_ocp(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &pcr->option;
if (option->ocp_en) {
u8 mask, val;
rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
RTS5260_DVCC_OCP_THD_MASK,
option->sd_800mA_ocp_thd);
rtsx_pci_write_register(pcr, RTS5260_DV331812_CFG,
RTS5260_DV331812_OCP_THD_MASK,
RTS5260_DV331812_OCP_THD_270);
mask = SD_OCP_GLITCH_MASK;
val = pcr->hw_param.ocp_glitch;
rtsx_pci_write_register(pcr, REG_OCPGLITCH, mask, val);
rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
RTS5260_DVCC_OCP_EN |
RTS5260_DVCC_OCP_CL_EN,
RTS5260_DVCC_OCP_EN |
RTS5260_DVCC_OCP_CL_EN);
rtsx_pci_enable_ocp(pcr);
} else {
rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
RTS5260_DVCC_OCP_EN |
RTS5260_DVCC_OCP_CL_EN, 0);
}
}
static void rts5260_enable_ocp(struct rtsx_pcr *pcr)
{
u8 val = 0;
val = SD_OCP_INT_EN | SD_DETECT_EN;
rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val);
}
static void rts5260_disable_ocp(struct rtsx_pcr *pcr)
{
u8 mask = 0;
mask = SD_OCP_INT_EN | SD_DETECT_EN;
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
}
static int rts5260_get_ocpstat(struct rtsx_pcr *pcr, u8 *val)
{
return rtsx_pci_read_register(pcr, REG_OCPSTAT, val);
}
static int rts5260_get_ocpstat2(struct rtsx_pcr *pcr, u8 *val)
{
return rtsx_pci_read_register(pcr, REG_DV3318_OCPSTAT, val);
}
static void rts5260_clear_ocpstat(struct rtsx_pcr *pcr)
{
u8 mask = 0;
u8 val = 0;
mask = SD_OCP_INT_CLR | SD_OC_CLR;
val = SD_OCP_INT_CLR | SD_OC_CLR;
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
DV3318_OCP_INT_CLR | DV3318_OCP_CLR,
DV3318_OCP_INT_CLR | DV3318_OCP_CLR);
udelay(10);
rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
rtsx_pci_write_register(pcr, REG_DV3318_OCPCTL,
DV3318_OCP_INT_CLR | DV3318_OCP_CLR, 0);
}
static void rts5260_process_ocp(struct rtsx_pcr *pcr)
{
if (!pcr->option.ocp_en)
return;
rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
rts5260_get_ocpstat2(pcr, &pcr->ocp_stat2);
if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) ||
(pcr->ocp_stat2 & (DV3318_OCP_NOW | DV3318_OCP_EVER))) {
rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
rtsx_pci_clear_ocpstat(pcr);
pcr->ocp_stat = 0;
pcr->ocp_stat2 = 0;
}
}
static int rts5260_init_hw(struct rtsx_pcr *pcr)
{
int err;
rtsx_pci_init_cmd(pcr);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG1,
AUX_CLK_ACTIVE_SEL_MASK, MAC_CKSW_DONE);
/* Rest L1SUB Config */
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, L1SUB_CONFIG3, 0xFF, 0x00);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PM_CLK_FORCE_CTL,
CLK_PM_EN, CLK_PM_EN);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWD_SUSPEND_EN, 0xFF, 0xFF);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PWR_GATE_CTRL,
PWR_GATE_EN, PWR_GATE_EN);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, REG_VREF,
PWD_SUSPND_EN, PWD_SUSPND_EN);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, RBCTL,
U_AUTO_DMA_EN_MASK, U_AUTO_DMA_DISABLE);
if (pcr->flags & PCR_REVERSE_SOCKET)
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0xB0);
else
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, PETXCFG, 0xB0, 0x80);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, OBFF_CFG,
OBFF_EN_MASK, OBFF_DISABLE);
err = rtsx_pci_send_cmd(pcr, CMD_TIMEOUT_DEF);
if (err < 0)
return err;
rtsx_pci_init_ocp(pcr);
return 0;
}
static void rts5260_pwr_saving_setting(struct rtsx_pcr *pcr)
{
int lss_l1_1, lss_l1_2;
lss_l1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN)
| rtsx_check_dev_flag(pcr, PM_L1_1_EN);
lss_l1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN)
| rtsx_check_dev_flag(pcr, PM_L1_2_EN);
rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, 0xFF, 0);
if (lss_l1_2) {
pcr_dbg(pcr, "Set parameters for L1.2.");
rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
0xFF, PCIE_L1_2_EN);
rtsx_pci_write_register(pcr, RTS5260_DVCC_CTRL,
RTS5260_DVCC_OCP_EN |
RTS5260_DVCC_OCP_CL_EN,
RTS5260_DVCC_OCP_EN |
RTS5260_DVCC_OCP_CL_EN);
rtsx_pci_write_register(pcr, PWR_FE_CTL,
0xFF, PCIE_L1_2_PD_FE_EN);
} else if (lss_l1_1) {
pcr_dbg(pcr, "Set parameters for L1.1.");
rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
0xFF, PCIE_L1_1_EN);
rtsx_pci_write_register(pcr, PWR_FE_CTL,
0xFF, PCIE_L1_1_PD_FE_EN);
} else {
pcr_dbg(pcr, "Set parameters for L1.");
rtsx_pci_write_register(pcr, PWR_GLOBAL_CTRL,
0xFF, PCIE_L1_0_EN);
rtsx_pci_write_register(pcr, PWR_FE_CTL,
0xFF, PCIE_L1_0_PD_FE_EN);
}
rtsx_pci_write_register(pcr, CFG_L1_0_PCIE_DPHY_RET_VALUE,
0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
rtsx_pci_write_register(pcr, CFG_L1_0_PCIE_MAC_RET_VALUE,
0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
rtsx_pci_write_register(pcr, CFG_L1_0_CRC_SD30_RET_VALUE,
0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
rtsx_pci_write_register(pcr, CFG_L1_0_CRC_SD40_RET_VALUE,
0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
rtsx_pci_write_register(pcr, CFG_L1_0_SYS_RET_VALUE,
0xFF, CFG_L1_0_RET_VALUE_DEFAULT);
/*Option cut APHY*/
rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_0,
0xFF, CFG_PCIE_APHY_OFF_0_DEFAULT);
rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_1,
0xFF, CFG_PCIE_APHY_OFF_1_DEFAULT);
rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_2,
0xFF, CFG_PCIE_APHY_OFF_2_DEFAULT);
rtsx_pci_write_register(pcr, CFG_PCIE_APHY_OFF_3,
0xFF, CFG_PCIE_APHY_OFF_3_DEFAULT);
/*CDR DEC*/
rtsx_pci_write_register(pcr, PWC_CDR, 0xFF, PWC_CDR_DEFAULT);
/*PWMPFM*/
rtsx_pci_write_register(pcr, CFG_LP_FPWM_VALUE,
0xFF, CFG_LP_FPWM_VALUE_DEFAULT);
/*No Power Saving WA*/
rtsx_pci_write_register(pcr, CFG_L1_0_CRC_MISC_RET_VALUE,
0xFF, CFG_L1_0_CRC_MISC_RET_VALUE_DEFAULT);
}
static void rts5260_init_from_cfg(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &pcr->option;
u32 lval;
rtsx_pci_read_config_dword(pcr, PCR_ASPM_SETTING_5260, &lval);
if (lval & ASPM_L1_1_EN_MASK)
rtsx_set_dev_flag(pcr, ASPM_L1_1_EN);
if (lval & ASPM_L1_2_EN_MASK)
rtsx_set_dev_flag(pcr, ASPM_L1_2_EN);
if (lval & PM_L1_1_EN_MASK)
rtsx_set_dev_flag(pcr, PM_L1_1_EN);
if (lval & PM_L1_2_EN_MASK)
rtsx_set_dev_flag(pcr, PM_L1_2_EN);
rts5260_pwr_saving_setting(pcr);
if (option->ltr_en) {
u16 val;
pcie_capability_read_word(pcr->pci, PCI_EXP_DEVCTL2, &val);
if (val & PCI_EXP_DEVCTL2_LTR_EN) {
option->ltr_enabled = true;
option->ltr_active = true;
rtsx_set_ltr_latency(pcr, option->ltr_active_latency);
} else {
option->ltr_enabled = false;
}
}
if (rtsx_check_dev_flag(pcr, ASPM_L1_1_EN | ASPM_L1_2_EN
| PM_L1_1_EN | PM_L1_2_EN))
option->force_clkreq_0 = false;
else
option->force_clkreq_0 = true;
}
static int rts5260_extra_init_hw(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &pcr->option;
/* Set mcu_cnt to 7 to ensure data can be sampled properly */
rtsx_pci_write_register(pcr, 0xFC03, 0x7F, 0x07);
rtsx_pci_write_register(pcr, SSC_DIV_N_0, 0xFF, 0x5D);
rts5260_init_from_cfg(pcr);
/* force no MDIO*/
rtsx_pci_write_register(pcr, RTS5260_AUTOLOAD_CFG4,
0xFF, RTS5260_MIMO_DISABLE);
/*Modify SDVCC Tune Default Parameters!*/
rtsx_pci_write_register(pcr, LDO_VCC_CFG0,
RTS5260_DVCC_TUNE_MASK, RTS5260_DVCC_33);
rtsx_pci_write_register(pcr, PCLK_CTL, PCLK_MODE_SEL, PCLK_MODE_SEL);
rts5260_init_hw(pcr);
/*
* If u_force_clkreq_0 is enabled, CLKREQ# PIN will be forced
* to drive low, and we forcibly request clock.
*/
if (option->force_clkreq_0)
rtsx_pci_write_register(pcr, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_LOW);
else
rtsx_pci_write_register(pcr, PETXCFG,
FORCE_CLKREQ_DELINK_MASK, FORCE_CLKREQ_HIGH);
return 0;
}
static void rts5260_set_aspm(struct rtsx_pcr *pcr, bool enable)
{
struct rtsx_cr_option *option = &pcr->option;
u8 val = 0;
if (pcr->aspm_enabled == enable)
return;
if (option->dev_aspm_mode == DEV_ASPM_DYNAMIC) {
if (enable)
val = pcr->aspm_en;
rtsx_pci_update_cfg_byte(pcr, pcr->pcie_cap + PCI_EXP_LNKCTL,
ASPM_MASK_NEG, val);
} else if (option->dev_aspm_mode == DEV_ASPM_BACKDOOR) {
u8 mask = FORCE_ASPM_VAL_MASK | FORCE_ASPM_CTL0;
if (!enable)
val = FORCE_ASPM_CTL0;
rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, mask, val);
}
pcr->aspm_enabled = enable;
}
static void rts5260_set_l1off_cfg_sub_d0(struct rtsx_pcr *pcr, int active)
{
struct rtsx_cr_option *option = &pcr->option;
u32 interrupt = rtsx_pci_readl(pcr, RTSX_BIPR);
int card_exist = (interrupt & SD_EXIST) | (interrupt & MS_EXIST);
int aspm_L1_1, aspm_L1_2;
u8 val = 0;
aspm_L1_1 = rtsx_check_dev_flag(pcr, ASPM_L1_1_EN);
aspm_L1_2 = rtsx_check_dev_flag(pcr, ASPM_L1_2_EN);
if (active) {
/* run, latency: 60us */
if (aspm_L1_1)
val = option->ltr_l1off_snooze_sspwrgate;
} else {
/* l1off, latency: 300us */
if (aspm_L1_2)
val = option->ltr_l1off_sspwrgate;
}
if (aspm_L1_1 || aspm_L1_2) {
if (rtsx_check_dev_flag(pcr,
LTR_L1SS_PWR_GATE_CHECK_CARD_EN)) {
if (card_exist)
val &= ~L1OFF_MBIAS2_EN_5250;
else
val |= L1OFF_MBIAS2_EN_5250;
}
}
rtsx_set_l1off_sub(pcr, val);
}
static const struct pcr_ops rts5260_pcr_ops = {
.fetch_vendor_settings = rtsx_base_fetch_vendor_settings,
.turn_on_led = rts5260_turn_on_led,
.turn_off_led = rts5260_turn_off_led,
.extra_init_hw = rts5260_extra_init_hw,
.enable_auto_blink = rtsx_base_enable_auto_blink,
.disable_auto_blink = rtsx_base_disable_auto_blink,
.card_power_on = rts5260_card_power_on,
.card_power_off = rts5260_card_power_off,
.switch_output_voltage = rts5260_switch_output_voltage,
.force_power_down = rtsx_base_force_power_down,
.stop_cmd = rts5260_stop_cmd,
.set_aspm = rts5260_set_aspm,
.set_l1off_cfg_sub_d0 = rts5260_set_l1off_cfg_sub_d0,
.enable_ocp = rts5260_enable_ocp,
.disable_ocp = rts5260_disable_ocp,
.init_ocp = rts5260_init_ocp,
.process_ocp = rts5260_process_ocp,
.get_ocpstat = rts5260_get_ocpstat,
.clear_ocpstat = rts5260_clear_ocpstat,
};
void rts5260_init_params(struct rtsx_pcr *pcr)
{
struct rtsx_cr_option *option = &pcr->option;
struct rtsx_hw_param *hw_param = &pcr->hw_param;
pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
pcr->num_slots = 2;
pcr->flags = 0;
pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
pcr->aspm_en = ASPM_L1_EN;
pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
pcr->ic_version = rts5260_get_ic_version(pcr);
pcr->sd_pull_ctl_enable_tbl = rts5260_sd_pull_ctl_enable_tbl;
pcr->sd_pull_ctl_disable_tbl = rts5260_sd_pull_ctl_disable_tbl;
pcr->ms_pull_ctl_enable_tbl = rts5260_ms_pull_ctl_enable_tbl;
pcr->ms_pull_ctl_disable_tbl = rts5260_ms_pull_ctl_disable_tbl;
pcr->reg_pm_ctrl3 = RTS524A_PM_CTRL3;
pcr->ops = &rts5260_pcr_ops;
option->dev_flags = (LTR_L1SS_PWR_GATE_CHECK_CARD_EN
| LTR_L1SS_PWR_GATE_EN);
option->ltr_en = true;
/* init latency of active, idle, L1OFF to 60us, 300us, 3ms */
option->ltr_active_latency = LTR_ACTIVE_LATENCY_DEF;
option->ltr_idle_latency = LTR_IDLE_LATENCY_DEF;
option->ltr_l1off_latency = LTR_L1OFF_LATENCY_DEF;
option->dev_aspm_mode = DEV_ASPM_DYNAMIC;
option->l1_snooze_delay = L1_SNOOZE_DELAY_DEF;
option->ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
option->ltr_l1off_snooze_sspwrgate =
LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
option->ocp_en = 1;
if (option->ocp_en)
hw_param->interrupt_en |= SD_OC_INT_EN;
hw_param->ocp_glitch = SD_OCP_GLITCH_100U | SDVIO_OCP_GLITCH_800U;
option->sd_400mA_ocp_thd = RTS5260_DVCC_OCP_THD_550;
option->sd_800mA_ocp_thd = RTS5260_DVCC_OCP_THD_970;
}
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