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kunit / linux / kunit/rfc/v5.1/v4 / . / drivers / staging / rts5208 / rtsx_chip.c
blob: 76c35f3c0208c8826ab7f2944320baa80dc4fc94 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0+
/*
* Driver for Realtek PCI-Express card reader
*
* Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
*
* Author:
* Wei WANG (wei_wang@realsil.com.cn)
* Micky Ching (micky_ching@realsil.com.cn)
*/
#include <linux/blkdev.h>
#include <linux/kthread.h>
#include <linux/sched.h>
#include <linux/workqueue.h>
#include <linux/vmalloc.h>
#include "rtsx.h"
#include "sd.h"
#include "xd.h"
#include "ms.h"
static void rtsx_calibration(struct rtsx_chip *chip)
{
rtsx_write_phy_register(chip, 0x1B, 0x135E);
wait_timeout(10);
rtsx_write_phy_register(chip, 0x00, 0x0280);
rtsx_write_phy_register(chip, 0x01, 0x7112);
rtsx_write_phy_register(chip, 0x01, 0x7110);
rtsx_write_phy_register(chip, 0x01, 0x7112);
rtsx_write_phy_register(chip, 0x01, 0x7113);
rtsx_write_phy_register(chip, 0x00, 0x0288);
}
void rtsx_enable_card_int(struct rtsx_chip *chip)
{
u32 reg = rtsx_readl(chip, RTSX_BIER);
int i;
for (i = 0; i <= chip->max_lun; i++) {
if (chip->lun2card[i] & XD_CARD)
reg |= XD_INT_EN;
if (chip->lun2card[i] & SD_CARD)
reg |= SD_INT_EN;
if (chip->lun2card[i] & MS_CARD)
reg |= MS_INT_EN;
}
if (chip->hw_bypass_sd)
reg &= ~((u32)SD_INT_EN);
rtsx_writel(chip, RTSX_BIER, reg);
}
void rtsx_enable_bus_int(struct rtsx_chip *chip)
{
u32 reg = 0;
#ifndef DISABLE_CARD_INT
int i;
#endif
reg = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN;
#ifndef DISABLE_CARD_INT
for (i = 0; i <= chip->max_lun; i++) {
dev_dbg(rtsx_dev(chip), "lun2card[%d] = 0x%02x\n",
i, chip->lun2card[i]);
if (chip->lun2card[i] & XD_CARD)
reg |= XD_INT_EN;
if (chip->lun2card[i] & SD_CARD)
reg |= SD_INT_EN;
if (chip->lun2card[i] & MS_CARD)
reg |= MS_INT_EN;
}
if (chip->hw_bypass_sd)
reg &= ~((u32)SD_INT_EN);
#endif
if (chip->ic_version >= IC_VER_C)
reg |= DELINK_INT_EN;
#ifdef SUPPORT_OCP
reg |= OC_INT_EN;
#endif
if (!chip->adma_mode)
reg |= DATA_DONE_INT_EN;
/* Enable Bus Interrupt */
rtsx_writel(chip, RTSX_BIER, reg);
dev_dbg(rtsx_dev(chip), "RTSX_BIER: 0x%08x\n", reg);
}
void rtsx_disable_bus_int(struct rtsx_chip *chip)
{
rtsx_writel(chip, RTSX_BIER, 0);
}
static int rtsx_pre_handle_sdio_old(struct rtsx_chip *chip)
{
int retval;
if (chip->ignore_sd && CHK_SDIO_EXIST(chip)) {
if (chip->asic_code) {
retval = rtsx_write_register(chip, CARD_PULL_CTL5,
0xFF,
MS_INS_PU | SD_WP_PU |
SD_CD_PU | SD_CMD_PU);
if (retval)
return retval;
} else {
retval = rtsx_write_register(chip, FPGA_PULL_CTL,
0xFF,
FPGA_SD_PULL_CTL_EN);
if (retval)
return retval;
}
retval = rtsx_write_register(chip, CARD_SHARE_MODE, 0xFF,
CARD_SHARE_48_SD);
if (retval)
return retval;
/* Enable SDIO internal clock */
retval = rtsx_write_register(chip, 0xFF2C, 0x01, 0x01);
if (retval)
return retval;
retval = rtsx_write_register(chip, SDIO_CTRL, 0xFF,
SDIO_BUS_CTRL | SDIO_CD_CTRL);
if (retval)
return retval;
chip->sd_int = 1;
chip->sd_io = 1;
} else {
chip->need_reset |= SD_CARD;
}
return STATUS_SUCCESS;
}
#ifdef HW_AUTO_SWITCH_SD_BUS
static int rtsx_pre_handle_sdio_new(struct rtsx_chip *chip)
{
u8 tmp;
bool sw_bypass_sd = false;
int retval;
if (chip->driver_first_load) {
if (CHECK_PID(chip, 0x5288)) {
retval = rtsx_read_register(chip, 0xFE5A, &tmp);
if (retval)
return retval;
if (tmp & 0x08)
sw_bypass_sd = true;
} else if (CHECK_PID(chip, 0x5208)) {
retval = rtsx_read_register(chip, 0xFE70, &tmp);
if (retval)
return retval;
if (tmp & 0x80)
sw_bypass_sd = true;
}
} else {
if (chip->sdio_in_charge)
sw_bypass_sd = true;
}
dev_dbg(rtsx_dev(chip), "chip->sdio_in_charge = %d\n",
chip->sdio_in_charge);
dev_dbg(rtsx_dev(chip), "chip->driver_first_load = %d\n",
chip->driver_first_load);
dev_dbg(rtsx_dev(chip), "sw_bypass_sd = %d\n",
sw_bypass_sd);
if (sw_bypass_sd) {
u8 cd_toggle_mask = 0;
retval = rtsx_read_register(chip, TLPTISTAT, &tmp);
if (retval)
return retval;
cd_toggle_mask = 0x08;
if (tmp & cd_toggle_mask) {
/* Disable sdio_bus_auto_switch */
if (CHECK_PID(chip, 0x5288)) {
retval = rtsx_write_register(chip, 0xFE5A,
0x08, 0x00);
if (retval)
return retval;
} else if (CHECK_PID(chip, 0x5208)) {
retval = rtsx_write_register(chip, 0xFE70,
0x80, 0x00);
if (retval)
return retval;
}
retval = rtsx_write_register(chip, TLPTISTAT, 0xFF,
tmp);
if (retval)
return retval;
chip->need_reset |= SD_CARD;
} else {
dev_dbg(rtsx_dev(chip), "Chip inserted with SDIO!\n");
if (chip->asic_code) {
retval = sd_pull_ctl_enable(chip);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
} else {
retval = rtsx_write_register
(chip, FPGA_PULL_CTL,
FPGA_SD_PULL_CTL_BIT | 0x20,
0);
if (retval)
return retval;
}
retval = card_share_mode(chip, SD_CARD);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
/* Enable sdio_bus_auto_switch */
if (CHECK_PID(chip, 0x5288)) {
retval = rtsx_write_register(chip, 0xFE5A,
0x08, 0x08);
if (retval)
return retval;
} else if (CHECK_PID(chip, 0x5208)) {
retval = rtsx_write_register(chip, 0xFE70,
0x80, 0x80);
if (retval)
return retval;
}
chip->chip_insert_with_sdio = 1;
chip->sd_io = 1;
}
} else {
retval = rtsx_write_register(chip, TLPTISTAT, 0x08, 0x08);
if (retval)
return retval;
chip->need_reset |= SD_CARD;
}
return STATUS_SUCCESS;
}
#endif
static int rtsx_reset_aspm(struct rtsx_chip *chip)
{
int ret;
if (chip->dynamic_aspm) {
if (!CHK_SDIO_EXIST(chip) || !CHECK_PID(chip, 0x5288))
return STATUS_SUCCESS;
ret = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFF,
chip->aspm_l0s_l1_en);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
return STATUS_SUCCESS;
}
if (CHECK_PID(chip, 0x5208)) {
ret = rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFF, 0x3F);
if (ret)
return ret;
}
ret = rtsx_write_config_byte(chip, LCTLR, chip->aspm_l0s_l1_en);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
chip->aspm_level[0] = chip->aspm_l0s_l1_en;
if (CHK_SDIO_EXIST(chip)) {
chip->aspm_level[1] = chip->aspm_l0s_l1_en;
ret = rtsx_write_cfg_dw(chip, CHECK_PID(chip, 0x5288) ? 2 : 1,
0xC0, 0xFF, chip->aspm_l0s_l1_en);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
}
chip->aspm_enabled = 1;
return STATUS_SUCCESS;
}
static int rtsx_enable_pcie_intr(struct rtsx_chip *chip)
{
int ret;
if (!chip->asic_code || !CHECK_PID(chip, 0x5208)) {
rtsx_enable_bus_int(chip);
return STATUS_SUCCESS;
}
if (chip->phy_debug_mode) {
ret = rtsx_write_register(chip, CDRESUMECTL, 0x77, 0);
if (ret)
return ret;
rtsx_disable_bus_int(chip);
} else {
rtsx_enable_bus_int(chip);
}
if (chip->ic_version >= IC_VER_D) {
u16 reg;
ret = rtsx_read_phy_register(chip, 0x00, &reg);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
reg &= 0xFE7F;
reg |= 0x80;
ret = rtsx_write_phy_register(chip, 0x00, reg);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
ret = rtsx_read_phy_register(chip, 0x1C, &reg);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
reg &= 0xFFF7;
ret = rtsx_write_phy_register(chip, 0x1C, reg);
if (ret != STATUS_SUCCESS)
return STATUS_FAIL;
}
if (chip->driver_first_load && (chip->ic_version < IC_VER_C))
rtsx_calibration(chip);
return STATUS_SUCCESS;
}
int rtsx_reset_chip(struct rtsx_chip *chip)
{
int retval;
rtsx_writel(chip, RTSX_HCBAR, chip->host_cmds_addr);
rtsx_disable_aspm(chip);
retval = rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 0x00);
if (retval)
return retval;
/* Disable card clock */
retval = rtsx_write_register(chip, CARD_CLK_EN, 0x1E, 0);
if (retval)
return retval;
#ifdef SUPPORT_OCP
/* SSC power on, OCD power on */
if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
retval = rtsx_write_register(chip, FPDCTL, OC_POWER_DOWN, 0);
if (retval)
return retval;
} else {
retval = rtsx_write_register(chip, FPDCTL, OC_POWER_DOWN,
MS_OC_POWER_DOWN);
if (retval)
return retval;
}
retval = rtsx_write_register(chip, OCPPARA1, OCP_TIME_MASK,
OCP_TIME_800);
if (retval)
return retval;
retval = rtsx_write_register(chip, OCPPARA2, OCP_THD_MASK,
OCP_THD_244_946);
if (retval)
return retval;
retval = rtsx_write_register(chip, OCPCTL, 0xFF,
CARD_OC_INT_EN | CARD_DETECT_EN);
if (retval)
return retval;
#else
/* OC power down */
retval = rtsx_write_register(chip, FPDCTL, OC_POWER_DOWN,
OC_POWER_DOWN);
if (retval)
return retval;
#endif
if (!CHECK_PID(chip, 0x5288)) {
retval = rtsx_write_register(chip, CARD_GPIO_DIR, 0xFF, 0x03);
if (retval)
return retval;
}
/* Turn off LED */
retval = rtsx_write_register(chip, CARD_GPIO, 0xFF, 0x03);
if (retval)
return retval;
/* Reset delink mode */
retval = rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0);
if (retval)
return retval;
/* Card driving select */
retval = rtsx_write_register(chip, CARD_DRIVE_SEL, 0xFF,
chip->card_drive_sel);
if (retval)
return retval;
#ifdef LED_AUTO_BLINK
retval = rtsx_write_register(chip, CARD_AUTO_BLINK, 0xFF,
LED_BLINK_SPEED | BLINK_EN | LED_GPIO0);
if (retval)
return retval;
#endif
if (chip->asic_code) {
/* Enable SSC Clock */
retval = rtsx_write_register(chip, SSC_CTL1, 0xFF,
SSC_8X_EN | SSC_SEL_4M);
if (retval)
return retval;
retval = rtsx_write_register(chip, SSC_CTL2, 0xFF, 0x12);
if (retval)
return retval;
}
/*
* Disable cd_pwr_save (u_force_rst_core_en=0, u_cd_rst_core_en=0)
* 0xFE5B
* bit[1] u_cd_rst_core_en rst_value = 0
* bit[2] u_force_rst_core_en rst_value = 0
* bit[5] u_mac_phy_rst_n_dbg rst_value = 1
* bit[4] u_non_sticky_rst_n_dbg rst_value = 0
*/
retval = rtsx_write_register(chip, CHANGE_LINK_STATE, 0x16, 0x10);
if (retval)
return retval;
/* Enable ASPM */
if (chip->aspm_l0s_l1_en) {
retval = rtsx_reset_aspm(chip);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
} else {
if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
retval = rtsx_write_phy_register(chip, 0x07, 0x0129);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
retval = rtsx_write_config_byte(chip, LCTLR,
chip->aspm_l0s_l1_en);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
retval = rtsx_write_config_byte(chip, 0x81, 1);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
if (CHK_SDIO_EXIST(chip)) {
retval = rtsx_write_cfg_dw(chip,
CHECK_PID(chip, 0x5288) ? 2 : 1,
0xC0, 0xFF00, 0x0100);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
if (CHECK_PID(chip, 0x5288) && !CHK_SDIO_EXIST(chip)) {
retval = rtsx_write_cfg_dw(chip, 2, 0xC0, 0xFFFF, 0x0103);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
retval = rtsx_write_cfg_dw(chip, 2, 0x84, 0xFF, 0x03);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
retval = rtsx_write_register(chip, IRQSTAT0, LINK_RDY_INT,
LINK_RDY_INT);
if (retval)
return retval;
retval = rtsx_write_register(chip, PERST_GLITCH_WIDTH, 0xFF, 0x80);
if (retval)
return retval;
retval = rtsx_enable_pcie_intr(chip);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
chip->need_reset = 0;
chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
if (chip->hw_bypass_sd)
goto nextcard;
dev_dbg(rtsx_dev(chip), "In %s, chip->int_reg = 0x%x\n", __func__,
chip->int_reg);
if (chip->int_reg & SD_EXIST) {
#ifdef HW_AUTO_SWITCH_SD_BUS
if (CHECK_PID(chip, 0x5208) && (chip->ic_version < IC_VER_C))
retval = rtsx_pre_handle_sdio_old(chip);
else
retval = rtsx_pre_handle_sdio_new(chip);
dev_dbg(rtsx_dev(chip), "chip->need_reset = 0x%x (%s)\n",
(unsigned int)(chip->need_reset), __func__);
#else /* HW_AUTO_SWITCH_SD_BUS */
retval = rtsx_pre_handle_sdio_old(chip);
#endif /* HW_AUTO_SWITCH_SD_BUS */
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
} else {
chip->sd_io = 0;
retval = rtsx_write_register(chip, SDIO_CTRL,
SDIO_BUS_CTRL | SDIO_CD_CTRL, 0);
if (retval)
return retval;
}
nextcard:
if (chip->int_reg & XD_EXIST)
chip->need_reset |= XD_CARD;
if (chip->int_reg & MS_EXIST)
chip->need_reset |= MS_CARD;
if (chip->int_reg & CARD_EXIST) {
retval = rtsx_write_register(chip, SSC_CTL1, SSC_RSTB,
SSC_RSTB);
if (retval)
return retval;
}
dev_dbg(rtsx_dev(chip), "In %s, chip->need_reset = 0x%x\n", __func__,
(unsigned int)(chip->need_reset));
retval = rtsx_write_register(chip, RCCTL, 0x01, 0x00);
if (retval)
return retval;
if (CHECK_PID(chip, 0x5208) || CHECK_PID(chip, 0x5288)) {
/* Turn off main power when entering S3/S4 state */
retval = rtsx_write_register(chip, MAIN_PWR_OFF_CTL, 0x03,
0x03);
if (retval)
return retval;
}
if (chip->remote_wakeup_en && !chip->auto_delink_en) {
retval = rtsx_write_register(chip, WAKE_SEL_CTL, 0x07, 0x07);
if (retval)
return retval;
if (chip->aux_pwr_exist) {
retval = rtsx_write_register(chip, PME_FORCE_CTL,
0xFF, 0x33);
if (retval)
return retval;
}
} else {
retval = rtsx_write_register(chip, WAKE_SEL_CTL, 0x07, 0x04);
if (retval)
return retval;
retval = rtsx_write_register(chip, PME_FORCE_CTL, 0xFF, 0x30);
if (retval)
return retval;
}
if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D)) {
retval = rtsx_write_register(chip, PETXCFG, 0x1C, 0x14);
if (retval)
return retval;
}
if (chip->asic_code && CHECK_PID(chip, 0x5208)) {
retval = rtsx_clr_phy_reg_bit(chip, 0x1C, 2);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
if (chip->ft2_fast_mode) {
retval = rtsx_write_register(chip, CARD_PWR_CTL, 0xFF,
MS_PARTIAL_POWER_ON |
SD_PARTIAL_POWER_ON);
if (retval)
return retval;
udelay(chip->pmos_pwr_on_interval);
retval = rtsx_write_register(chip, CARD_PWR_CTL, 0xFF,
MS_POWER_ON | SD_POWER_ON);
if (retval)
return retval;
wait_timeout(200);
}
/* Reset card */
rtsx_reset_detected_cards(chip, 0);
chip->driver_first_load = 0;
return STATUS_SUCCESS;
}
static inline int check_sd_speed_prior(u32 sd_speed_prior)
{
bool fake_para = false;
int i;
for (i = 0; i < 4; i++) {
u8 tmp = (u8)(sd_speed_prior >> (i * 8));
if ((tmp < 0x01) || (tmp > 0x04)) {
fake_para = true;
break;
}
}
return !fake_para;
}
static inline int check_sd_current_prior(u32 sd_current_prior)
{
bool fake_para = false;
int i;
for (i = 0; i < 4; i++) {
u8 tmp = (u8)(sd_current_prior >> (i * 8));
if (tmp > 0x03) {
fake_para = true;
break;
}
}
return !fake_para;
}
static int rts5208_init(struct rtsx_chip *chip)
{
int retval;
u16 reg = 0;
u8 val = 0;
retval = rtsx_write_register(chip, CLK_SEL, 0x03, 0x03);
if (retval)
return retval;
retval = rtsx_read_register(chip, CLK_SEL, &val);
if (retval)
return retval;
chip->asic_code = val == 0 ? 1 : 0;
if (chip->asic_code) {
retval = rtsx_read_phy_register(chip, 0x1C, &reg);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
dev_dbg(rtsx_dev(chip), "Value of phy register 0x1C is 0x%x\n",
reg);
chip->ic_version = (reg >> 4) & 0x07;
chip->phy_debug_mode = reg & PHY_DEBUG_MODE ? 1 : 0;
} else {
retval = rtsx_read_register(chip, 0xFE80, &val);
if (retval)
return retval;
chip->ic_version = val;
chip->phy_debug_mode = 0;
}
retval = rtsx_read_register(chip, PDINFO, &val);
if (retval)
return retval;
dev_dbg(rtsx_dev(chip), "PDINFO: 0x%x\n", val);
chip->aux_pwr_exist = val & AUX_PWR_DETECTED ? 1 : 0;
retval = rtsx_read_register(chip, 0xFE50, &val);
if (retval)
return retval;
chip->hw_bypass_sd = val & 0x01 ? 1 : 0;
rtsx_read_config_byte(chip, 0x0E, &val);
if (val & 0x80)
SET_SDIO_EXIST(chip);
else
CLR_SDIO_EXIST(chip);
if (chip->use_hw_setting) {
retval = rtsx_read_register(chip, CHANGE_LINK_STATE, &val);
if (retval)
return retval;
chip->auto_delink_en = val & 0x80 ? 1 : 0;
}
return STATUS_SUCCESS;
}
static int rts5288_init(struct rtsx_chip *chip)
{
int retval;
u8 val = 0, max_func;
u32 lval = 0;
retval = rtsx_write_register(chip, CLK_SEL, 0x03, 0x03);
if (retval)
return retval;
retval = rtsx_read_register(chip, CLK_SEL, &val);
if (retval)
return retval;
chip->asic_code = val == 0 ? 1 : 0;
chip->ic_version = 0;
chip->phy_debug_mode = 0;
retval = rtsx_read_register(chip, PDINFO, &val);
if (retval)
return retval;
dev_dbg(rtsx_dev(chip), "PDINFO: 0x%x\n", val);
chip->aux_pwr_exist = val & AUX_PWR_DETECTED ? 1 : 0;
retval = rtsx_read_register(chip, CARD_SHARE_MODE, &val);
if (retval)
return retval;
dev_dbg(rtsx_dev(chip), "CARD_SHARE_MODE: 0x%x\n", val);
chip->baro_pkg = val & 0x04 ? QFN : LQFP;
retval = rtsx_read_register(chip, 0xFE5A, &val);
if (retval)
return retval;
chip->hw_bypass_sd = val & 0x10 ? 1 : 0;
retval = rtsx_read_cfg_dw(chip, 0, 0x718, &lval);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
max_func = (u8)((lval >> 29) & 0x07);
dev_dbg(rtsx_dev(chip), "Max function number: %d\n", max_func);
if (max_func == 0x02)
SET_SDIO_EXIST(chip);
else
CLR_SDIO_EXIST(chip);
if (chip->use_hw_setting) {
retval = rtsx_read_register(chip, CHANGE_LINK_STATE, &val);
if (retval)
return retval;
chip->auto_delink_en = val & 0x80 ? 1 : 0;
if (CHECK_BARO_PKG(chip, LQFP))
chip->lun_mode = SD_MS_1LUN;
else
chip->lun_mode = DEFAULT_SINGLE;
}
return STATUS_SUCCESS;
}
int rtsx_init_chip(struct rtsx_chip *chip)
{
struct sd_info *sd_card = &chip->sd_card;
struct xd_info *xd_card = &chip->xd_card;
struct ms_info *ms_card = &chip->ms_card;
int retval;
unsigned int i;
dev_dbg(rtsx_dev(chip), "Vendor ID: 0x%04x, Product ID: 0x%04x\n",
chip->vendor_id, chip->product_id);
chip->ic_version = 0;
memset(xd_card, 0, sizeof(struct xd_info));
memset(sd_card, 0, sizeof(struct sd_info));
memset(ms_card, 0, sizeof(struct ms_info));
chip->xd_reset_counter = 0;
chip->sd_reset_counter = 0;
chip->ms_reset_counter = 0;
chip->xd_show_cnt = MAX_SHOW_CNT;
chip->sd_show_cnt = MAX_SHOW_CNT;
chip->ms_show_cnt = MAX_SHOW_CNT;
chip->sd_io = 0;
chip->auto_delink_cnt = 0;
chip->auto_delink_allowed = 1;
rtsx_set_stat(chip, RTSX_STAT_INIT);
chip->aspm_enabled = 0;
chip->chip_insert_with_sdio = 0;
chip->sdio_aspm = 0;
chip->sdio_idle = 0;
chip->sdio_counter = 0;
chip->cur_card = 0;
chip->phy_debug_mode = 0;
chip->sdio_func_exist = 0;
memset(chip->sdio_raw_data, 0, 12);
for (i = 0; i < MAX_ALLOWED_LUN_CNT; i++) {
set_sense_type(chip, i, SENSE_TYPE_NO_SENSE);
chip->rw_fail_cnt[i] = 0;
}
if (!check_sd_speed_prior(chip->sd_speed_prior))
chip->sd_speed_prior = 0x01040203;
dev_dbg(rtsx_dev(chip), "sd_speed_prior = 0x%08x\n",
chip->sd_speed_prior);
if (!check_sd_current_prior(chip->sd_current_prior))
chip->sd_current_prior = 0x00010203;
dev_dbg(rtsx_dev(chip), "sd_current_prior = 0x%08x\n",
chip->sd_current_prior);
if ((chip->sd_ddr_tx_phase > 31) || (chip->sd_ddr_tx_phase < 0))
chip->sd_ddr_tx_phase = 0;
if ((chip->mmc_ddr_tx_phase > 31) || (chip->mmc_ddr_tx_phase < 0))
chip->mmc_ddr_tx_phase = 0;
retval = rtsx_write_register(chip, FPDCTL, SSC_POWER_DOWN, 0);
if (retval)
return retval;
wait_timeout(200);
retval = rtsx_write_register(chip, CLK_DIV, 0x07, 0x07);
if (retval)
return retval;
dev_dbg(rtsx_dev(chip), "chip->use_hw_setting = %d\n",
chip->use_hw_setting);
if (CHECK_PID(chip, 0x5208)) {
retval = rts5208_init(chip);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
} else if (CHECK_PID(chip, 0x5288)) {
retval = rts5288_init(chip);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
if (chip->ss_en == 2)
chip->ss_en = 0;
dev_dbg(rtsx_dev(chip), "chip->asic_code = %d\n", chip->asic_code);
dev_dbg(rtsx_dev(chip), "chip->ic_version = 0x%x\n", chip->ic_version);
dev_dbg(rtsx_dev(chip), "chip->phy_debug_mode = %d\n",
chip->phy_debug_mode);
dev_dbg(rtsx_dev(chip), "chip->aux_pwr_exist = %d\n",
chip->aux_pwr_exist);
dev_dbg(rtsx_dev(chip), "chip->sdio_func_exist = %d\n",
chip->sdio_func_exist);
dev_dbg(rtsx_dev(chip), "chip->hw_bypass_sd = %d\n",
chip->hw_bypass_sd);
dev_dbg(rtsx_dev(chip), "chip->aspm_l0s_l1_en = %d\n",
chip->aspm_l0s_l1_en);
dev_dbg(rtsx_dev(chip), "chip->lun_mode = %d\n", chip->lun_mode);
dev_dbg(rtsx_dev(chip), "chip->auto_delink_en = %d\n",
chip->auto_delink_en);
dev_dbg(rtsx_dev(chip), "chip->ss_en = %d\n", chip->ss_en);
dev_dbg(rtsx_dev(chip), "chip->baro_pkg = %d\n", chip->baro_pkg);
if (CHECK_LUN_MODE(chip, SD_MS_2LUN)) {
chip->card2lun[SD_CARD] = 0;
chip->card2lun[MS_CARD] = 1;
chip->card2lun[XD_CARD] = 0xFF;
chip->lun2card[0] = SD_CARD;
chip->lun2card[1] = MS_CARD;
chip->max_lun = 1;
SET_SDIO_IGNORED(chip);
} else if (CHECK_LUN_MODE(chip, SD_MS_1LUN)) {
chip->card2lun[SD_CARD] = 0;
chip->card2lun[MS_CARD] = 0;
chip->card2lun[XD_CARD] = 0xFF;
chip->lun2card[0] = SD_CARD | MS_CARD;
chip->max_lun = 0;
} else {
chip->card2lun[XD_CARD] = 0;
chip->card2lun[SD_CARD] = 0;
chip->card2lun[MS_CARD] = 0;
chip->lun2card[0] = XD_CARD | SD_CARD | MS_CARD;
chip->max_lun = 0;
}
retval = rtsx_reset_chip(chip);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
return STATUS_SUCCESS;
}
void rtsx_release_chip(struct rtsx_chip *chip)
{
xd_free_l2p_tbl(chip);
ms_free_l2p_tbl(chip);
chip->card_exist = 0;
chip->card_ready = 0;
}
#if !defined(LED_AUTO_BLINK) && defined(REGULAR_BLINK)
static inline void rtsx_blink_led(struct rtsx_chip *chip)
{
if (chip->card_exist && chip->blink_led) {
if (chip->led_toggle_counter < LED_TOGGLE_INTERVAL) {
chip->led_toggle_counter++;
} else {
chip->led_toggle_counter = 0;
toggle_gpio(chip, LED_GPIO);
}
}
}
#endif
static void rtsx_monitor_aspm_config(struct rtsx_chip *chip)
{
bool reg_changed, maybe_support_aspm;
u32 tmp = 0;
u8 reg0 = 0, reg1 = 0;
maybe_support_aspm = false;
reg_changed = false;
rtsx_read_config_byte(chip, LCTLR, &reg0);
if (chip->aspm_level[0] != reg0) {
reg_changed = true;
chip->aspm_level[0] = reg0;
}
if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
rtsx_read_cfg_dw(chip, 1, 0xC0, &tmp);
reg1 = (u8)tmp;
if (chip->aspm_level[1] != reg1) {
reg_changed = true;
chip->aspm_level[1] = reg1;
}
if ((reg0 & 0x03) && (reg1 & 0x03))
maybe_support_aspm = true;
} else {
if (reg0 & 0x03)
maybe_support_aspm = true;
}
if (reg_changed) {
if (maybe_support_aspm)
chip->aspm_l0s_l1_en = 0x03;
dev_dbg(rtsx_dev(chip), "aspm_level[0] = 0x%02x, aspm_level[1] = 0x%02x\n",
chip->aspm_level[0], chip->aspm_level[1]);
if (chip->aspm_l0s_l1_en) {
chip->aspm_enabled = 1;
} else {
chip->aspm_enabled = 0;
chip->sdio_aspm = 0;
}
rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFF,
0x30 | chip->aspm_level[0] |
(chip->aspm_level[1] << 2));
}
}
static void rtsx_manage_ocp(struct rtsx_chip *chip)
{
#ifdef SUPPORT_OCP
if (!chip->ocp_int)
return;
rtsx_read_register(chip, OCPSTAT, &chip->ocp_stat);
if (chip->card_exist & SD_CARD)
sd_power_off_card3v3(chip);
else if (chip->card_exist & MS_CARD)
ms_power_off_card3v3(chip);
else if (chip->card_exist & XD_CARD)
xd_power_off_card3v3(chip);
chip->ocp_int = 0;
#endif
}
static void rtsx_manage_sd_lock(struct rtsx_chip *chip)
{
#ifdef SUPPORT_SD_LOCK
struct sd_info *sd_card = &chip->sd_card;
u8 val;
if (!sd_card->sd_erase_status)
return;
if (chip->card_exist & SD_CARD) {
rtsx_read_register(chip, 0xFD30, &val);
if (val & 0x02) {
sd_card->sd_erase_status = SD_NOT_ERASE;
sd_card->sd_lock_notify = 1;
chip->need_reinit |= SD_CARD;
}
} else {
sd_card->sd_erase_status = SD_NOT_ERASE;
}
#endif
}
static bool rtsx_is_ss_allowed(struct rtsx_chip *chip)
{
u32 val;
if (!chip->ss_en || CHECK_PID(chip, 0x5288))
return false;
if (CHK_SDIO_EXIST(chip) && !CHK_SDIO_IGNORED(chip)) {
rtsx_read_cfg_dw(chip, 1, 0x04, &val);
if (val & 0x07)
return false;
}
return true;
}
static void rtsx_manage_ss(struct rtsx_chip *chip)
{
if (!rtsx_is_ss_allowed(chip) || chip->sd_io)
return;
if (rtsx_get_stat(chip) != RTSX_STAT_IDLE) {
chip->ss_counter = 0;
return;
}
if (chip->ss_counter < (chip->ss_idle_period / POLLING_INTERVAL))
chip->ss_counter++;
else
rtsx_exclusive_enter_ss(chip);
}
static void rtsx_manage_aspm(struct rtsx_chip *chip)
{
u8 data;
if (!CHECK_PID(chip, 0x5208))
return;
rtsx_monitor_aspm_config(chip);
#ifdef SUPPORT_SDIO_ASPM
if (!CHK_SDIO_EXIST(chip) || CHK_SDIO_IGNORED(chip) ||
!chip->aspm_l0s_l1_en || !chip->dynamic_aspm)
return;
if (chip->sd_io) {
dynamic_configure_sdio_aspm(chip);
return;
}
if (chip->sdio_aspm)
return;
dev_dbg(rtsx_dev(chip), "SDIO enter ASPM!\n");
data = 0x30 | (chip->aspm_level[1] << 2);
rtsx_write_register(chip, ASPM_FORCE_CTL, 0xFC, data);
chip->sdio_aspm = 1;
#endif
}
static void rtsx_manage_idle(struct rtsx_chip *chip)
{
if (chip->idle_counter < IDLE_MAX_COUNT) {
chip->idle_counter++;
return;
}
if (rtsx_get_stat(chip) == RTSX_STAT_IDLE)
return;
dev_dbg(rtsx_dev(chip), "Idle state!\n");
rtsx_set_stat(chip, RTSX_STAT_IDLE);
#if !defined(LED_AUTO_BLINK) && defined(REGULAR_BLINK)
chip->led_toggle_counter = 0;
#endif
rtsx_force_power_on(chip, SSC_PDCTL);
turn_off_led(chip, LED_GPIO);
if (chip->auto_power_down && !chip->card_ready && !chip->sd_io)
rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
}
static void rtsx_manage_2lun_mode(struct rtsx_chip *chip)
{
#ifdef SUPPORT_OCP
u8 sd_oc, ms_oc;
sd_oc = chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER);
ms_oc = chip->ocp_stat & (MS_OC_NOW | MS_OC_EVER);
if (sd_oc || ms_oc)
dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
chip->ocp_stat);
if (sd_oc && (chip->card_exist & SD_CARD)) {
rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN, 0);
card_power_off(chip, SD_CARD);
chip->card_fail |= SD_CARD;
}
if (ms_oc && (chip->card_exist & MS_CARD)) {
rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN, 0);
card_power_off(chip, MS_CARD);
chip->card_fail |= MS_CARD;
}
#endif
}
static void rtsx_manage_1lun_mode(struct rtsx_chip *chip)
{
#ifdef SUPPORT_OCP
if (!(chip->ocp_stat & (SD_OC_NOW | SD_OC_EVER)))
return;
dev_dbg(rtsx_dev(chip), "Over current, OCPSTAT is 0x%x\n",
chip->ocp_stat);
if (chip->card_exist & SD_CARD) {
rtsx_write_register(chip, CARD_OE, SD_OUTPUT_EN, 0);
chip->card_fail |= SD_CARD;
} else if (chip->card_exist & MS_CARD) {
rtsx_write_register(chip, CARD_OE, MS_OUTPUT_EN, 0);
chip->card_fail |= MS_CARD;
} else if (chip->card_exist & XD_CARD) {
rtsx_write_register(chip, CARD_OE, XD_OUTPUT_EN, 0);
chip->card_fail |= XD_CARD;
}
card_power_off(chip, SD_CARD);
#endif
}
static void rtsx_delink_stage1(struct rtsx_chip *chip, int enter_L1,
int stage3_cnt)
{
u8 val;
rtsx_set_stat(chip, RTSX_STAT_DELINK);
if (chip->asic_code && CHECK_PID(chip, 0x5208))
rtsx_set_phy_reg_bit(chip, 0x1C, 2);
if (chip->card_exist)
dev_dbg(rtsx_dev(chip), "False card inserted, do force delink\n");
else
dev_dbg(rtsx_dev(chip), "No card inserted, do delink\n");
if (enter_L1)
rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03, 1);
if (chip->card_exist)
val = 0x02;
else
val = 0x0A;
rtsx_write_register(chip, CHANGE_LINK_STATE, val, val);
if (enter_L1)
rtsx_enter_L1(chip);
if (chip->card_exist)
chip->auto_delink_cnt = stage3_cnt + 1;
}
static void rtsx_delink_stage(struct rtsx_chip *chip)
{
int delink_stage1_cnt, delink_stage2_cnt, delink_stage3_cnt;
int enter_L1;
if (!chip->auto_delink_en || !chip->auto_delink_allowed ||
chip->card_ready || chip->card_ejected || chip->sd_io) {
chip->auto_delink_cnt = 0;
return;
}
enter_L1 = chip->auto_delink_in_L1 &&
(chip->aspm_l0s_l1_en || chip->ss_en);
delink_stage1_cnt = chip->delink_stage1_step;
delink_stage2_cnt = delink_stage1_cnt + chip->delink_stage2_step;
delink_stage3_cnt = delink_stage2_cnt + chip->delink_stage3_step;
if (chip->auto_delink_cnt > delink_stage3_cnt)
return;
if (chip->auto_delink_cnt == delink_stage1_cnt)
rtsx_delink_stage1(chip, enter_L1, delink_stage3_cnt);
if (chip->auto_delink_cnt == delink_stage2_cnt) {
dev_dbg(rtsx_dev(chip), "Try to do force delink\n");
if (enter_L1)
rtsx_exit_L1(chip);
if (chip->asic_code && CHECK_PID(chip, 0x5208))
rtsx_set_phy_reg_bit(chip, 0x1C, 2);
rtsx_write_register(chip, CHANGE_LINK_STATE, 0x0A, 0x0A);
}
chip->auto_delink_cnt++;
}
void rtsx_polling_func(struct rtsx_chip *chip)
{
if (rtsx_chk_stat(chip, RTSX_STAT_SUSPEND))
return;
if (rtsx_chk_stat(chip, RTSX_STAT_DELINK))
goto delink_stage;
if (chip->polling_config) {
u8 val;
rtsx_read_config_byte(chip, 0, &val);
}
if (rtsx_chk_stat(chip, RTSX_STAT_SS))
return;
rtsx_manage_ocp(chip);
rtsx_manage_sd_lock(chip);
rtsx_init_cards(chip);
rtsx_manage_ss(chip);
rtsx_manage_aspm(chip);
rtsx_manage_idle(chip);
switch (rtsx_get_stat(chip)) {
case RTSX_STAT_RUN:
#if !defined(LED_AUTO_BLINK) && defined(REGULAR_BLINK)
rtsx_blink_led(chip);
#endif
do_remaining_work(chip);
break;
case RTSX_STAT_IDLE:
if (chip->sd_io && !chip->sd_int)
try_to_switch_sdio_ctrl(chip);
rtsx_enable_aspm(chip);
break;
default:
break;
}
if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
rtsx_manage_2lun_mode(chip);
else
rtsx_manage_1lun_mode(chip);
delink_stage:
rtsx_delink_stage(chip);
}
/**
* rtsx_stop_cmd - stop command transfer and DMA transfer
* @chip: Realtek's card reader chip
* @card: flash card type
*
* Stop command transfer and DMA transfer.
* This function is called in error handler.
*/
void rtsx_stop_cmd(struct rtsx_chip *chip, int card)
{
int i;
for (i = 0; i <= 8; i++) {
int addr = RTSX_HCBAR + i * 4;
u32 reg;
reg = rtsx_readl(chip, addr);
dev_dbg(rtsx_dev(chip), "BAR (0x%02x): 0x%08x\n", addr, reg);
}
rtsx_writel(chip, RTSX_HCBCTLR, STOP_CMD);
rtsx_writel(chip, RTSX_HDBCTLR, STOP_DMA);
for (i = 0; i < 16; i++) {
u16 addr = 0xFE20 + (u16)i;
u8 val;
rtsx_read_register(chip, addr, &val);
dev_dbg(rtsx_dev(chip), "0x%04X: 0x%02x\n", addr, val);
}
rtsx_write_register(chip, DMACTL, 0x80, 0x80);
rtsx_write_register(chip, RBCTL, 0x80, 0x80);
}
#define MAX_RW_REG_CNT 1024
int rtsx_write_register(struct rtsx_chip *chip, u16 addr, u8 mask, u8 data)
{
int i;
u32 val = 3 << 30;
val |= (u32)(addr & 0x3FFF) << 16;
val |= (u32)mask << 8;
val |= (u32)data;
rtsx_writel(chip, RTSX_HAIMR, val);
for (i = 0; i < MAX_RW_REG_CNT; i++) {
val = rtsx_readl(chip, RTSX_HAIMR);
if ((val & BIT(31)) == 0) {
if (data != (u8)val)
return STATUS_FAIL;
return STATUS_SUCCESS;
}
}
return STATUS_TIMEDOUT;
}
int rtsx_read_register(struct rtsx_chip *chip, u16 addr, u8 *data)
{
u32 val = 2 << 30;
int i;
if (data)
*data = 0;
val |= (u32)(addr & 0x3FFF) << 16;
rtsx_writel(chip, RTSX_HAIMR, val);
for (i = 0; i < MAX_RW_REG_CNT; i++) {
val = rtsx_readl(chip, RTSX_HAIMR);
if ((val & BIT(31)) == 0)
break;
}
if (i >= MAX_RW_REG_CNT)
return STATUS_TIMEDOUT;
if (data)
*data = (u8)(val & 0xFF);
return STATUS_SUCCESS;
}
int rtsx_write_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 mask,
u32 val)
{
int retval;
u8 mode = 0, tmp;
int i;
for (i = 0; i < 4; i++) {
if (mask & 0xFF) {
retval = rtsx_write_register(chip, CFGDATA0 + i,
0xFF,
(u8)(val & mask & 0xFF));
if (retval)
return retval;
mode |= (1 << i);
}
mask >>= 8;
val >>= 8;
}
if (mode) {
retval = rtsx_write_register(chip, CFGADDR0, 0xFF, (u8)addr);
if (retval)
return retval;
retval = rtsx_write_register(chip, CFGADDR1, 0xFF,
(u8)(addr >> 8));
if (retval)
return retval;
retval = rtsx_write_register(chip, CFGRWCTL, 0xFF,
0x80 | mode |
((func_no & 0x03) << 4));
if (retval)
return retval;
for (i = 0; i < MAX_RW_REG_CNT; i++) {
retval = rtsx_read_register(chip, CFGRWCTL, &tmp);
if (retval)
return retval;
if ((tmp & 0x80) == 0)
break;
}
}
return STATUS_SUCCESS;
}
int rtsx_read_cfg_dw(struct rtsx_chip *chip, u8 func_no, u16 addr, u32 *val)
{
int retval;
int i;
u8 tmp;
u32 data = 0;
retval = rtsx_write_register(chip, CFGADDR0, 0xFF, (u8)addr);
if (retval)
return retval;
retval = rtsx_write_register(chip, CFGADDR1, 0xFF, (u8)(addr >> 8));
if (retval)
return retval;
retval = rtsx_write_register(chip, CFGRWCTL, 0xFF,
0x80 | ((func_no & 0x03) << 4));
if (retval)
return retval;
for (i = 0; i < MAX_RW_REG_CNT; i++) {
retval = rtsx_read_register(chip, CFGRWCTL, &tmp);
if (retval)
return retval;
if ((tmp & 0x80) == 0)
break;
}
for (i = 0; i < 4; i++) {
retval = rtsx_read_register(chip, CFGDATA0 + i, &tmp);
if (retval)
return retval;
data |= (u32)tmp << (i * 8);
}
if (val)
*val = data;
return STATUS_SUCCESS;
}
int rtsx_write_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
int len)
{
u32 *data, *mask;
u16 offset = addr % 4;
u16 aligned_addr = addr - offset;
int dw_len, i, j;
int retval;
if (!buf)
return STATUS_NOMEM;
if ((len + offset) % 4)
dw_len = (len + offset) / 4 + 1;
else
dw_len = (len + offset) / 4;
dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
data = vzalloc(array_size(dw_len, 4));
if (!data)
return STATUS_NOMEM;
mask = vzalloc(array_size(dw_len, 4));
if (!mask) {
vfree(data);
return STATUS_NOMEM;
}
j = 0;
for (i = 0; i < len; i++) {
mask[j] |= 0xFF << (offset * 8);
data[j] |= buf[i] << (offset * 8);
if (++offset == 4) {
j++;
offset = 0;
}
}
print_hex_dump_bytes(KBUILD_MODNAME ": ", DUMP_PREFIX_NONE, mask,
dw_len * 4);
print_hex_dump_bytes(KBUILD_MODNAME ": ", DUMP_PREFIX_NONE, data,
dw_len * 4);
for (i = 0; i < dw_len; i++) {
retval = rtsx_write_cfg_dw(chip, func, aligned_addr + i * 4,
mask[i], data[i]);
if (retval != STATUS_SUCCESS) {
vfree(data);
vfree(mask);
return STATUS_FAIL;
}
}
vfree(data);
vfree(mask);
return STATUS_SUCCESS;
}
int rtsx_read_cfg_seq(struct rtsx_chip *chip, u8 func, u16 addr, u8 *buf,
int len)
{
u32 *data;
u16 offset = addr % 4;
u16 aligned_addr = addr - offset;
int dw_len, i, j;
int retval;
if ((len + offset) % 4)
dw_len = (len + offset) / 4 + 1;
else
dw_len = (len + offset) / 4;
dev_dbg(rtsx_dev(chip), "dw_len = %d\n", dw_len);
data = vmalloc(array_size(dw_len, 4));
if (!data)
return STATUS_NOMEM;
for (i = 0; i < dw_len; i++) {
retval = rtsx_read_cfg_dw(chip, func, aligned_addr + i * 4,
data + i);
if (retval != STATUS_SUCCESS) {
vfree(data);
return STATUS_FAIL;
}
}
if (buf) {
j = 0;
for (i = 0; i < len; i++) {
buf[i] = (u8)(data[j] >> (offset * 8));
if (++offset == 4) {
j++;
offset = 0;
}
}
}
vfree(data);
return STATUS_SUCCESS;
}
int rtsx_write_phy_register(struct rtsx_chip *chip, u8 addr, u16 val)
{
int retval;
bool finished = false;
int i;
u8 tmp;
retval = rtsx_write_register(chip, PHYDATA0, 0xFF, (u8)val);
if (retval)
return retval;
retval = rtsx_write_register(chip, PHYDATA1, 0xFF, (u8)(val >> 8));
if (retval)
return retval;
retval = rtsx_write_register(chip, PHYADDR, 0xFF, addr);
if (retval)
return retval;
retval = rtsx_write_register(chip, PHYRWCTL, 0xFF, 0x81);
if (retval)
return retval;
for (i = 0; i < 100000; i++) {
retval = rtsx_read_register(chip, PHYRWCTL, &tmp);
if (retval)
return retval;
if (!(tmp & 0x80)) {
finished = true;
break;
}
}
if (!finished)
return STATUS_FAIL;
return STATUS_SUCCESS;
}
int rtsx_read_phy_register(struct rtsx_chip *chip, u8 addr, u16 *val)
{
int retval;
bool finished = false;
int i;
u16 data = 0;
u8 tmp;
retval = rtsx_write_register(chip, PHYADDR, 0xFF, addr);
if (retval)
return retval;
retval = rtsx_write_register(chip, PHYRWCTL, 0xFF, 0x80);
if (retval)
return retval;
for (i = 0; i < 100000; i++) {
retval = rtsx_read_register(chip, PHYRWCTL, &tmp);
if (retval)
return retval;
if (!(tmp & 0x80)) {
finished = true;
break;
}
}
if (!finished)
return STATUS_FAIL;
retval = rtsx_read_register(chip, PHYDATA0, &tmp);
if (retval)
return retval;
data = tmp;
retval = rtsx_read_register(chip, PHYDATA1, &tmp);
if (retval)
return retval;
data |= (u16)tmp << 8;
if (val)
*val = data;
return STATUS_SUCCESS;
}
int rtsx_read_efuse(struct rtsx_chip *chip, u8 addr, u8 *val)
{
int retval;
int i;
u8 data = 0;
retval = rtsx_write_register(chip, EFUSE_CTRL, 0xFF, 0x80 | addr);
if (retval)
return retval;
for (i = 0; i < 100; i++) {
retval = rtsx_read_register(chip, EFUSE_CTRL, &data);
if (retval)
return retval;
if (!(data & 0x80))
break;
udelay(1);
}
if (data & 0x80)
return STATUS_TIMEDOUT;
retval = rtsx_read_register(chip, EFUSE_DATA, &data);
if (retval)
return retval;
if (val)
*val = data;
return STATUS_SUCCESS;
}
int rtsx_write_efuse(struct rtsx_chip *chip, u8 addr, u8 val)
{
int retval;
int i, j;
u8 data = 0, tmp = 0xFF;
for (i = 0; i < 8; i++) {
if (val & (u8)(1 << i))
continue;
tmp &= (~(u8)(1 << i));
dev_dbg(rtsx_dev(chip), "Write 0x%x to 0x%x\n", tmp, addr);
retval = rtsx_write_register(chip, EFUSE_DATA, 0xFF, tmp);
if (retval)
return retval;
retval = rtsx_write_register(chip, EFUSE_CTRL, 0xFF,
0xA0 | addr);
if (retval)
return retval;
for (j = 0; j < 100; j++) {
retval = rtsx_read_register(chip, EFUSE_CTRL, &data);
if (retval)
return retval;
if (!(data & 0x80))
break;
wait_timeout(3);
}
if (data & 0x80)
return STATUS_TIMEDOUT;
wait_timeout(5);
}
return STATUS_SUCCESS;
}
int rtsx_clr_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
{
int retval;
u16 value;
retval = rtsx_read_phy_register(chip, reg, &value);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
if (value & (1 << bit)) {
value &= ~(1 << bit);
retval = rtsx_write_phy_register(chip, reg, value);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}
int rtsx_set_phy_reg_bit(struct rtsx_chip *chip, u8 reg, u8 bit)
{
int retval;
u16 value;
retval = rtsx_read_phy_register(chip, reg, &value);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
if ((value & (1 << bit)) == 0) {
value |= (1 << bit);
retval = rtsx_write_phy_register(chip, reg, value);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}
static void rtsx_handle_pm_dstate(struct rtsx_chip *chip, u8 dstate)
{
u32 ultmp;
dev_dbg(rtsx_dev(chip), "%04x set pm_dstate to %d\n",
chip->product_id, dstate);
if (CHK_SDIO_EXIST(chip)) {
u8 func_no;
if (CHECK_PID(chip, 0x5288))
func_no = 2;
else
func_no = 1;
rtsx_read_cfg_dw(chip, func_no, 0x84, &ultmp);
dev_dbg(rtsx_dev(chip), "pm_dstate of function %d: 0x%x\n",
(int)func_no, ultmp);
rtsx_write_cfg_dw(chip, func_no, 0x84, 0xFF, dstate);
}
rtsx_write_config_byte(chip, 0x44, dstate);
rtsx_write_config_byte(chip, 0x45, 0);
}
void rtsx_enter_L1(struct rtsx_chip *chip)
{
rtsx_handle_pm_dstate(chip, 2);
}
void rtsx_exit_L1(struct rtsx_chip *chip)
{
rtsx_write_config_byte(chip, 0x44, 0);
rtsx_write_config_byte(chip, 0x45, 0);
}
void rtsx_enter_ss(struct rtsx_chip *chip)
{
dev_dbg(rtsx_dev(chip), "Enter Selective Suspend State!\n");
rtsx_write_register(chip, IRQSTAT0, LINK_RDY_INT, LINK_RDY_INT);
if (chip->power_down_in_ss) {
rtsx_power_off_card(chip);
rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
}
if (CHK_SDIO_EXIST(chip))
rtsx_write_cfg_dw(chip, CHECK_PID(chip, 0x5288) ? 2 : 1,
0xC0, 0xFF00, 0x0100);
if (chip->auto_delink_en) {
rtsx_write_register(chip, HOST_SLEEP_STATE, 0x01, 0x01);
} else {
if (!chip->phy_debug_mode) {
u32 tmp;
tmp = rtsx_readl(chip, RTSX_BIER);
tmp |= CARD_INT;
rtsx_writel(chip, RTSX_BIER, tmp);
}
rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 0);
}
rtsx_enter_L1(chip);
RTSX_CLR_DELINK(chip);
rtsx_set_stat(chip, RTSX_STAT_SS);
}
void rtsx_exit_ss(struct rtsx_chip *chip)
{
dev_dbg(rtsx_dev(chip), "Exit Selective Suspend State!\n");
rtsx_exit_L1(chip);
if (chip->power_down_in_ss) {
rtsx_force_power_on(chip, SSC_PDCTL | OC_PDCTL);
udelay(1000);
}
if (RTSX_TST_DELINK(chip)) {
chip->need_reinit = SD_CARD | MS_CARD | XD_CARD;
rtsx_reinit_cards(chip, 1);
RTSX_CLR_DELINK(chip);
} else if (chip->power_down_in_ss) {
chip->need_reinit = SD_CARD | MS_CARD | XD_CARD;
rtsx_reinit_cards(chip, 0);
}
}
int rtsx_pre_handle_interrupt(struct rtsx_chip *chip)
{
u32 status, int_enable;
bool exit_ss = false;
#ifdef SUPPORT_OCP
u32 ocp_int = 0;
ocp_int = OC_INT;
#endif
if (chip->ss_en) {
chip->ss_counter = 0;
if (rtsx_get_stat(chip) == RTSX_STAT_SS) {
exit_ss = true;
rtsx_exit_L1(chip);
rtsx_set_stat(chip, RTSX_STAT_RUN);
}
}
int_enable = rtsx_readl(chip, RTSX_BIER);
chip->int_reg = rtsx_readl(chip, RTSX_BIPR);
if (((chip->int_reg & int_enable) == 0) ||
(chip->int_reg == 0xFFFFFFFF))
return STATUS_FAIL;
status = chip->int_reg &= (int_enable | 0x7FFFFF);
if (status & CARD_INT) {
chip->auto_delink_cnt = 0;
if (status & SD_INT) {
if (status & SD_EXIST) {
set_bit(SD_NR, &chip->need_reset);
} else {
set_bit(SD_NR, &chip->need_release);
chip->sd_reset_counter = 0;
chip->sd_show_cnt = 0;
clear_bit(SD_NR, &chip->need_reset);
}
} else {
/*
* If multi-luns, it's possible that
* when plugging/unplugging one card
* there is another card which still
* exists in the slot. In this case,
* all existed cards should be reset.
*/
if (exit_ss && (status & SD_EXIST))
set_bit(SD_NR, &chip->need_reinit);
}
if (!CHECK_PID(chip, 0x5288) || CHECK_BARO_PKG(chip, QFN)) {
if (status & XD_INT) {
if (status & XD_EXIST) {
set_bit(XD_NR, &chip->need_reset);
} else {
set_bit(XD_NR, &chip->need_release);
chip->xd_reset_counter = 0;
chip->xd_show_cnt = 0;
clear_bit(XD_NR, &chip->need_reset);
}
} else {
if (exit_ss && (status & XD_EXIST))
set_bit(XD_NR, &chip->need_reinit);
}
}
if (status & MS_INT) {
if (status & MS_EXIST) {
set_bit(MS_NR, &chip->need_reset);
} else {
set_bit(MS_NR, &chip->need_release);
chip->ms_reset_counter = 0;
chip->ms_show_cnt = 0;
clear_bit(MS_NR, &chip->need_reset);
}
} else {
if (exit_ss && (status & MS_EXIST))
set_bit(MS_NR, &chip->need_reinit);
}
}
#ifdef SUPPORT_OCP
chip->ocp_int = ocp_int & status;
#endif
if (chip->sd_io && (chip->int_reg & DATA_DONE_INT))
chip->int_reg &= ~(u32)DATA_DONE_INT;
return STATUS_SUCCESS;
}
void rtsx_do_before_power_down(struct rtsx_chip *chip, int pm_stat)
{
int retval;
dev_dbg(rtsx_dev(chip), "%s, pm_stat = %d\n", __func__, pm_stat);
rtsx_set_stat(chip, RTSX_STAT_SUSPEND);
retval = rtsx_force_power_on(chip, SSC_PDCTL);
if (retval != STATUS_SUCCESS)
return;
rtsx_release_cards(chip);
rtsx_disable_bus_int(chip);
turn_off_led(chip, LED_GPIO);
#ifdef HW_AUTO_SWITCH_SD_BUS
if (chip->sd_io) {
chip->sdio_in_charge = 1;
if (CHECK_PID(chip, 0x5208)) {
rtsx_write_register(chip, TLPTISTAT, 0x08, 0x08);
/* Enable sdio_bus_auto_switch */
rtsx_write_register(chip, 0xFE70, 0x80, 0x80);
} else if (CHECK_PID(chip, 0x5288)) {
rtsx_write_register(chip, TLPTISTAT, 0x08, 0x08);
/* Enable sdio_bus_auto_switch */
rtsx_write_register(chip, 0xFE5A, 0x08, 0x08);
}
}
#endif
if (CHECK_PID(chip, 0x5208) && (chip->ic_version >= IC_VER_D)) {
/* u_force_clkreq_0 */
rtsx_write_register(chip, PETXCFG, 0x08, 0x08);
}
if (pm_stat == PM_S1) {
dev_dbg(rtsx_dev(chip), "Host enter S1\n");
rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03,
HOST_ENTER_S1);
} else if (pm_stat == PM_S3) {
if (chip->s3_pwr_off_delay > 0)
wait_timeout(chip->s3_pwr_off_delay);
dev_dbg(rtsx_dev(chip), "Host enter S3\n");
rtsx_write_register(chip, HOST_SLEEP_STATE, 0x03,
HOST_ENTER_S3);
}
if (chip->do_delink_before_power_down && chip->auto_delink_en)
rtsx_write_register(chip, CHANGE_LINK_STATE, 0x02, 2);
rtsx_force_power_down(chip, SSC_PDCTL | OC_PDCTL);
chip->cur_clk = 0;
chip->cur_card = 0;
chip->card_exist = 0;
}
void rtsx_enable_aspm(struct rtsx_chip *chip)
{
if (chip->aspm_l0s_l1_en && chip->dynamic_aspm && !chip->aspm_enabled) {
dev_dbg(rtsx_dev(chip), "Try to enable ASPM\n");
chip->aspm_enabled = 1;
if (chip->asic_code && CHECK_PID(chip, 0x5208))
rtsx_write_phy_register(chip, 0x07, 0);
if (CHECK_PID(chip, 0x5208)) {
rtsx_write_register(chip, ASPM_FORCE_CTL, 0xF3,
0x30 | chip->aspm_level[0]);
} else {
rtsx_write_config_byte(chip, LCTLR,
chip->aspm_l0s_l1_en);
}
if (CHK_SDIO_EXIST(chip)) {
u16 val = chip->aspm_l0s_l1_en | 0x0100;
rtsx_write_cfg_dw(chip, CHECK_PID(chip, 0x5288) ? 2 : 1,
0xC0, 0xFFF, val);
}
}
}
void rtsx_disable_aspm(struct rtsx_chip *chip)
{
if (CHECK_PID(chip, 0x5208))
rtsx_monitor_aspm_config(chip);
if (chip->aspm_l0s_l1_en && chip->dynamic_aspm && chip->aspm_enabled) {
dev_dbg(rtsx_dev(chip), "Try to disable ASPM\n");
chip->aspm_enabled = 0;
if (chip->asic_code && CHECK_PID(chip, 0x5208))
rtsx_write_phy_register(chip, 0x07, 0x0129);
if (CHECK_PID(chip, 0x5208))
rtsx_write_register(chip, ASPM_FORCE_CTL,
0xF3, 0x30);
else
rtsx_write_config_byte(chip, LCTLR, 0x00);
wait_timeout(1);
}
}
int rtsx_read_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
{
int retval;
int i, j;
u16 reg_addr;
u8 *ptr;
if (!buf)
return STATUS_ERROR;
ptr = buf;
reg_addr = PPBUF_BASE2;
for (i = 0; i < buf_len / 256; i++) {
rtsx_init_cmd(chip);
for (j = 0; j < 256; j++)
rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
retval = rtsx_send_cmd(chip, 0, 250);
if (retval < 0)
return STATUS_FAIL;
memcpy(ptr, rtsx_get_cmd_data(chip), 256);
ptr += 256;
}
if (buf_len % 256) {
rtsx_init_cmd(chip);
for (j = 0; j < buf_len % 256; j++)
rtsx_add_cmd(chip, READ_REG_CMD, reg_addr++, 0, 0);
retval = rtsx_send_cmd(chip, 0, 250);
if (retval < 0)
return STATUS_FAIL;
}
memcpy(ptr, rtsx_get_cmd_data(chip), buf_len % 256);
return STATUS_SUCCESS;
}
int rtsx_write_ppbuf(struct rtsx_chip *chip, u8 *buf, int buf_len)
{
int retval;
int i, j;
u16 reg_addr;
u8 *ptr;
if (!buf)
return STATUS_ERROR;
ptr = buf;
reg_addr = PPBUF_BASE2;
for (i = 0; i < buf_len / 256; i++) {
rtsx_init_cmd(chip);
for (j = 0; j < 256; j++) {
rtsx_add_cmd(chip, WRITE_REG_CMD, reg_addr++, 0xFF,
*ptr);
ptr++;
}
retval = rtsx_send_cmd(chip, 0, 250);
if (retval < 0)
return STATUS_FAIL;
}
if (buf_len % 256) {
rtsx_init_cmd(chip);
for (j = 0; j < buf_len % 256; j++) {
rtsx_add_cmd(chip, WRITE_REG_CMD, reg_addr++, 0xFF,
*ptr);
ptr++;
}
retval = rtsx_send_cmd(chip, 0, 250);
if (retval < 0)
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}
int rtsx_check_chip_exist(struct rtsx_chip *chip)
{
if (rtsx_readl(chip, 0) == 0xFFFFFFFF)
return STATUS_FAIL;
return STATUS_SUCCESS;
}
int rtsx_force_power_on(struct rtsx_chip *chip, u8 ctl)
{
int retval;
u8 mask = 0;
if (ctl & SSC_PDCTL)
mask |= SSC_POWER_DOWN;
#ifdef SUPPORT_OCP
if (ctl & OC_PDCTL) {
mask |= SD_OC_POWER_DOWN;
if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
mask |= MS_OC_POWER_DOWN;
}
#endif
if (mask) {
retval = rtsx_write_register(chip, FPDCTL, mask, 0);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
if (CHECK_PID(chip, 0x5288))
wait_timeout(200);
}
return STATUS_SUCCESS;
}
int rtsx_force_power_down(struct rtsx_chip *chip, u8 ctl)
{
int retval;
u8 mask = 0, val = 0;
if (ctl & SSC_PDCTL)
mask |= SSC_POWER_DOWN;
#ifdef SUPPORT_OCP
if (ctl & OC_PDCTL) {
mask |= SD_OC_POWER_DOWN;
if (CHECK_LUN_MODE(chip, SD_MS_2LUN))
mask |= MS_OC_POWER_DOWN;
}
#endif
if (mask) {
val = mask;
retval = rtsx_write_register(chip, FPDCTL, mask, val);
if (retval != STATUS_SUCCESS)
return STATUS_FAIL;
}
return STATUS_SUCCESS;
}