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Message-ID: <CAPDyKFpVDUHcHL1LF9HGE-=sunG4ZA45r+GqwiEhSMMHGn2D3A@mail.gmail.com>
Date: Wed, 18 Oct 2023 16:50:21 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Ricky WU <ricky_wu@...ltek.com>
Cc: "arnd@...db.de" <arnd@...db.de>,
"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
"frank.li@...o.com" <frank.li@...o.com>,
"yangyingliang@...wei.com" <yangyingliang@...wei.com>,
"u.kleine-koenig@...gutronix.de" <u.kleine-koenig@...gutronix.de>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH v2] misc: rtsx: add to support new card reader rts5264
On Wed, 18 Oct 2023 at 11:42, Ricky WU <ricky_wu@...ltek.com> wrote:
>
>
> In order to support new chip rts5264, the definitions of some internal
> registers and workflow have to be modified.
> Added rts5264.c rts5264.h for independent functions of the new chip rts5264
>
> Signed-off-by: Ricky Wu <ricky_wu@...ltek.com>
> ---
> v2: removed ic version check
> ---
> drivers/misc/cardreader/Makefile | 2 +-
> drivers/misc/cardreader/rts5264.c | 886 +++++++++++++++++++++++++++++
> drivers/misc/cardreader/rts5264.h | 278 +++++++++
> drivers/misc/cardreader/rtsx_pcr.c | 30 +-
> drivers/misc/cardreader/rtsx_pcr.h | 1 +
> drivers/mmc/host/rtsx_pci_sdmmc.c | 17 +-
> include/linux/rtsx_pci.h | 8 +
> 7 files changed, 1215 insertions(+), 7 deletions(-)
> create mode 100644 drivers/misc/cardreader/rts5264.c
> create mode 100644 drivers/misc/cardreader/rts5264.h
Before I really start reviewing this, would you mind splitting this up
in some more patches? The cardreader part could be a separate patch
and so can the mmc part. Smaller pieces are easier to review.
Kind regards
Uffe
>
> diff --git a/drivers/misc/cardreader/Makefile b/drivers/misc/cardreader/Makefile
> index 895128475d83..1e1bca6b0b22 100644
> --- a/drivers/misc/cardreader/Makefile
> +++ b/drivers/misc/cardreader/Makefile
> @@ -1,5 +1,5 @@
> # SPDX-License-Identifier: GPL-2.0-only
> obj-$(CONFIG_MISC_ALCOR_PCI) += alcor_pci.o
> obj-$(CONFIG_MISC_RTSX_PCI) += rtsx_pci.o
> -rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o rts5260.o rts5261.o rts5228.o
> +rtsx_pci-objs := rtsx_pcr.o rts5209.o rts5229.o rtl8411.o rts5227.o rts5249.o rts5260.o rts5261.o rts5228.o rts5264.o
> obj-$(CONFIG_MISC_RTSX_USB) += rtsx_usb.o
> diff --git a/drivers/misc/cardreader/rts5264.c b/drivers/misc/cardreader/rts5264.c
> new file mode 100644
> index 000000000000..8be4ed7d9d47
> --- /dev/null
> +++ b/drivers/misc/cardreader/rts5264.c
> @@ -0,0 +1,886 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/* Driver for Realtek PCI-Express card reader
> + *
> + * Copyright(c) 2009-2013 Realtek Semiconductor Corp. All rights reserved.
> + *
> + * Author:
> + * Ricky Wu <ricky_wu@...ltek.com>
> + */
> +
> +#include <linux/module.h>
> +#include <linux/delay.h>
> +#include <linux/rtsx_pci.h>
> +
> +#include "rts5264.h"
> +#include "rtsx_pcr.h"
> +
> +static u8 rts5264_get_ic_version(struct rtsx_pcr *pcr)
> +{
> + u8 val;
> +
> + rtsx_pci_read_register(pcr, DUMMY_REG_RESET_0, &val);
> + return val & 0x0F;
> +}
> +
> +static void rts5264_fill_driving(struct rtsx_pcr *pcr, u8 voltage)
> +{
> + u8 driving_3v3[4][3] = {
> + {0x88, 0x88, 0x88},
> + {0x77, 0x77, 0x77},
> + {0x99, 0x99, 0x99},
> + {0x66, 0x66, 0x66},
> + };
> + u8 driving_1v8[4][3] = {
> + {0x99, 0x99, 0x99},
> + {0x77, 0x77, 0x77},
> + {0xBB, 0xBB, 0xBB},
> + {0x65, 0x65, 0x65},
> + };
> + 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_DAT_DRIVE_SEL,
> + 0xFF, driving[drive_sel][2]);
> +}
> +
> +static void rts5264_force_power_down(struct rtsx_pcr *pcr, u8 pm_state, bool runtime)
> +{
> + /* 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);
> +
> + if (!runtime) {
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG1,
> + CD_RESUME_EN_MASK, 0);
> + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x01, 0x00);
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + FORCE_PM_CONTROL | FORCE_PM_VALUE, FORCE_PM_CONTROL);
> + } else {
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + FORCE_PM_CONTROL | FORCE_PM_VALUE, 0);
> + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x01, 0x01);
> + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3,
> + D3_DELINK_MODE_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_FW_CTL,
> + RTS5264_INFORM_RTD3_COLD, RTS5264_INFORM_RTD3_COLD);
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG4,
> + RTS5264_FORCE_PRSNT_LOW, RTS5264_FORCE_PRSNT_LOW);
> + }
> +
> + rtsx_pci_write_register(pcr, RTS5264_REG_FPDCTL,
> + SSC_POWER_DOWN, SSC_POWER_DOWN);
> +}
> +
> +static int rts5264_enable_auto_blink(struct rtsx_pcr *pcr)
> +{
> + return rtsx_pci_write_register(pcr, OLT_LED_CTL,
> + LED_SHINE_MASK, LED_SHINE_EN);
> +}
> +
> +static int rts5264_disable_auto_blink(struct rtsx_pcr *pcr)
> +{
> + return rtsx_pci_write_register(pcr, OLT_LED_CTL,
> + LED_SHINE_MASK, LED_SHINE_DISABLE);
> +}
> +
> +static int rts5264_turn_on_led(struct rtsx_pcr *pcr)
> +{
> + return rtsx_pci_write_register(pcr, GPIO_CTL,
> + 0x02, 0x02);
> +}
> +
> +static int rts5264_turn_off_led(struct rtsx_pcr *pcr)
> +{
> + return rtsx_pci_write_register(pcr, GPIO_CTL,
> + 0x02, 0x00);
> +}
> +
> +/* 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 rts5264_sd_pull_ctl_enable_tbl[] = {
> + 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 rts5264_sd_pull_ctl_disable_tbl[] = {
> + RTSX_REG_PAIR(CARD_PULL_CTL2, 0x55),
> + RTSX_REG_PAIR(CARD_PULL_CTL3, 0xD5),
> + 0,
> +};
> +
> +static int rts5264_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 rts5264_card_power_on(struct rtsx_pcr *pcr, int card)
> +{
> + struct rtsx_cr_option *option = &pcr->option;
> +
> + if (option->ocp_en)
> + rtsx_pci_enable_ocp(pcr);
> +
> + rtsx_pci_write_register(pcr, REG_CRC_DUMMY_0,
> + CFG_SD_POW_AUTO_PD, CFG_SD_POW_AUTO_PD);
> +
> + rtsx_pci_write_register(pcr, RTS5264_LDO1_CFG1,
> + RTS5264_LDO1_TUNE_MASK, RTS5264_LDO1_33);
> + rtsx_pci_write_register(pcr, RTS5264_LDO1233318_POW_CTL,
> + RTS5264_LDO1_POWERON, RTS5264_LDO1_POWERON);
> + rtsx_pci_write_register(pcr, RTS5264_LDO1233318_POW_CTL,
> + RTS5264_LDO3318_POWERON, RTS5264_LDO3318_POWERON);
> +
> + msleep(20);
> +
> + rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, SD_OUTPUT_EN);
> +
> + /* Initialize SD_CFG1 register */
> + rtsx_pci_write_register(pcr, SD_CFG1, 0xFF,
> + SD_CLK_DIVIDE_128 | SD_20_MODE | SD_BUS_WIDTH_1BIT);
> + 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);
> +
> + if (pcr->extra_caps & EXTRA_CAPS_SD_SDR50 ||
> + pcr->extra_caps & EXTRA_CAPS_SD_SDR104)
> + rts5264_sd_set_sample_push_timing_sd30(pcr);
> +
> + return 0;
> +}
> +
> +static int rts5264_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
> +{
> + rtsx_pci_write_register(pcr, RTS5264_CARD_PWR_CTL,
> + RTS5264_PUPDC, RTS5264_PUPDC);
> +
> + switch (voltage) {
> + case OUTPUT_3V3:
> + rtsx_pci_write_register(pcr, RTS5264_LDO1233318_POW_CTL,
> + RTS5264_TUNE_REF_LDO3318, RTS5264_TUNE_REF_LDO3318);
> + rtsx_pci_write_register(pcr, RTS5264_DV3318_CFG,
> + RTS5264_DV3318_TUNE_MASK, RTS5264_DV3318_33);
> + rtsx_pci_write_register(pcr, SD_PAD_CTL,
> + SD_IO_USING_1V8, 0);
> + break;
> + case OUTPUT_1V8:
> + rtsx_pci_write_register(pcr, RTS5264_LDO1233318_POW_CTL,
> + RTS5264_TUNE_REF_LDO3318, RTS5264_TUNE_REF_LDO3318_DFT);
> + rtsx_pci_write_register(pcr, RTS5264_DV3318_CFG,
> + RTS5264_DV3318_TUNE_MASK, RTS5264_DV3318_18);
> + rtsx_pci_write_register(pcr, SD_PAD_CTL,
> + SD_IO_USING_1V8, SD_IO_USING_1V8);
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + /* set pad drive */
> + rts5264_fill_driving(pcr, voltage);
> +
> + return 0;
> +}
> +
> +static void rts5264_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, DMACTL, DMA_RST, DMA_RST);
> + rtsx_pci_write_register(pcr, RBCTL, RB_FLUSH, RB_FLUSH);
> +}
> +
> +static void rts5264_card_before_power_off(struct rtsx_pcr *pcr)
> +{
> + rts5264_stop_cmd(pcr);
> + rts5264_switch_output_voltage(pcr, OUTPUT_3V3);
> +}
> +
> +static int rts5264_card_power_off(struct rtsx_pcr *pcr, int card)
> +{
> + int err = 0;
> +
> + rts5264_card_before_power_off(pcr);
> + err = rtsx_pci_write_register(pcr, RTS5264_LDO1233318_POW_CTL,
> + RTS5264_LDO_POWERON_MASK, 0);
> +
> + rtsx_pci_write_register(pcr, REG_CRC_DUMMY_0,
> + CFG_SD_POW_AUTO_PD, 0);
> + if (pcr->option.ocp_en)
> + rtsx_pci_disable_ocp(pcr);
> +
> + return err;
> +}
> +
> +static void rts5264_enable_ocp(struct rtsx_pcr *pcr)
> +{
> + u8 mask = 0;
> + u8 val = 0;
> +
> + rtsx_pci_write_register(pcr, RTS5264_LDO1_CFG0,
> + RTS5264_LDO1_OCP_EN | RTS5264_LDO1_OCP_LMT_EN,
> + RTS5264_LDO1_OCP_EN | RTS5264_LDO1_OCP_LMT_EN);
> + rtsx_pci_write_register(pcr, RTS5264_LDO2_CFG0,
> + RTS5264_LDO2_OCP_EN | RTS5264_LDO2_OCP_LMT_EN,
> + RTS5264_LDO2_OCP_EN | RTS5264_LDO2_OCP_LMT_EN);
> + rtsx_pci_write_register(pcr, RTS5264_LDO3_CFG0,
> + RTS5264_LDO3_OCP_EN | RTS5264_LDO3_OCP_LMT_EN,
> + RTS5264_LDO3_OCP_EN | RTS5264_LDO3_OCP_LMT_EN);
> + rtsx_pci_write_register(pcr, RTS5264_OVP_DET,
> + RTS5264_POW_VDET, RTS5264_POW_VDET);
> +
> + mask = SD_OCP_INT_EN | SD_DETECT_EN;
> + mask |= SDVIO_OCP_INT_EN | SDVIO_DETECT_EN;
> + val = mask;
> + rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
> +
> + mask = SD_VDD3_OCP_INT_EN | SD_VDD3_DETECT_EN;
> + val = mask;
> + rtsx_pci_write_register(pcr, RTS5264_OCP_VDD3_CTL, mask, val);
> +
> + mask = RTS5264_OVP_INT_EN | RTS5264_OVP_DETECT_EN;
> + val = mask;
> + rtsx_pci_write_register(pcr, RTS5264_OVP_CTL, mask, val);
> +}
> +
> +static void rts5264_disable_ocp(struct rtsx_pcr *pcr)
> +{
> + u8 mask = 0;
> +
> + mask = SD_OCP_INT_EN | SD_DETECT_EN;
> + mask |= SDVIO_OCP_INT_EN | SDVIO_DETECT_EN;
> + rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
> +
> + mask = SD_VDD3_OCP_INT_EN | SD_VDD3_DETECT_EN;
> + rtsx_pci_write_register(pcr, RTS5264_OCP_VDD3_CTL, mask, 0);
> +
> + mask = RTS5264_OVP_INT_EN | RTS5264_OVP_DETECT_EN;
> + rtsx_pci_write_register(pcr, RTS5264_OVP_CTL, mask, 0);
> +
> + rtsx_pci_write_register(pcr, RTS5264_LDO1_CFG0,
> + RTS5264_LDO1_OCP_EN | RTS5264_LDO1_OCP_LMT_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_LDO2_CFG0,
> + RTS5264_LDO2_OCP_EN | RTS5264_LDO2_OCP_LMT_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_LDO3_CFG0,
> + RTS5264_LDO3_OCP_EN | RTS5264_LDO3_OCP_LMT_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_OVP_DET, RTS5264_POW_VDET, 0);
> +}
> +
> +static void rts5264_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, RTS5264_LDO1_CFG0,
> + RTS5264_LDO1_OCP_THD_MASK, option->sd_800mA_ocp_thd);
> + rtsx_pci_write_register(pcr, RTS5264_LDO1_CFG0,
> + RTS5264_LDO1_OCP_LMT_THD_MASK,
> + RTS5264_LDO1_LMT_THD_2000);
> +
> + rtsx_pci_write_register(pcr, RTS5264_LDO2_CFG0,
> + RTS5264_LDO2_OCP_THD_MASK, RTS5264_LDO2_OCP_THD_950);
> + rtsx_pci_write_register(pcr, RTS5264_LDO2_CFG0,
> + RTS5264_LDO2_OCP_LMT_THD_MASK,
> + RTS5264_LDO2_LMT_THD_2000);
> +
> + rtsx_pci_write_register(pcr, RTS5264_LDO3_CFG0,
> + RTS5264_LDO3_OCP_THD_MASK, RTS5264_LDO3_OCP_THD_710);
> + rtsx_pci_write_register(pcr, RTS5264_LDO3_CFG0,
> + RTS5264_LDO3_OCP_LMT_THD_MASK,
> + RTS5264_LDO3_LMT_THD_1500);
> +
> + rtsx_pci_write_register(pcr, RTS5264_OVP_DET,
> + RTS5264_TUNE_VROV_MASK, RTS5264_TUNE_VROV_1V6);
> +
> + mask = SD_OCP_GLITCH_MASK | SDVIO_OCP_GLITCH_MASK;
> + val = pcr->hw_param.ocp_glitch;
> + rtsx_pci_write_register(pcr, REG_OCPGLITCH, mask, val);
> +
> + } else {
> + rtsx_pci_write_register(pcr, RTS5264_LDO1_CFG0,
> + RTS5264_LDO1_OCP_EN | RTS5264_LDO1_OCP_LMT_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_LDO2_CFG0,
> + RTS5264_LDO2_OCP_EN | RTS5264_LDO2_OCP_LMT_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_LDO3_CFG0,
> + RTS5264_LDO3_OCP_EN | RTS5264_LDO3_OCP_LMT_EN, 0);
> + rtsx_pci_write_register(pcr, RTS5264_OVP_DET,
> + RTS5264_POW_VDET, 0);
> + }
> +}
> +
> +static int rts5264_get_ocpstat2(struct rtsx_pcr *pcr, u8 *val)
> +{
> + return rtsx_pci_read_register(pcr, RTS5264_OCP_VDD3_STS, val);
> +}
> +
> +static int rts5264_get_ovpstat(struct rtsx_pcr *pcr, u8 *val)
> +{
> + return rtsx_pci_read_register(pcr, RTS5264_OVP_STS, val);
> +}
> +
> +static void rts5264_clear_ocpstat(struct rtsx_pcr *pcr)
> +{
> + u8 mask = 0;
> + u8 val = 0;
> +
> + mask = SD_OCP_INT_CLR | SD_OC_CLR;
> + mask |= SDVIO_OCP_INT_CLR | SDVIO_OC_CLR;
> + val = mask;
> + rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
> + rtsx_pci_write_register(pcr, RTS5264_OCP_VDD3_CTL,
> + SD_VDD3_OCP_INT_CLR | SD_VDD3_OC_CLR,
> + SD_VDD3_OCP_INT_CLR | SD_VDD3_OC_CLR);
> + rtsx_pci_write_register(pcr, RTS5264_OVP_CTL,
> + RTS5264_OVP_INT_CLR | RTS5264_OVP_CLR,
> + RTS5264_OVP_INT_CLR | RTS5264_OVP_CLR);
> +
> + udelay(1000);
> +
> + rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
> + rtsx_pci_write_register(pcr, RTS5264_OCP_VDD3_CTL,
> + SD_VDD3_OCP_INT_CLR | SD_VDD3_OC_CLR, 0);
> + rtsx_pci_write_register(pcr, RTS5264_OVP_CTL,
> + RTS5264_OVP_INT_CLR | RTS5264_OVP_CLR, 0);
> +}
> +
> +static void rts5264_process_ocp(struct rtsx_pcr *pcr)
> +{
> + if (!pcr->option.ocp_en)
> + return;
> +
> + rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
> + rts5264_get_ocpstat2(pcr, &pcr->ocp_stat2);
> + rts5264_get_ovpstat(pcr, &pcr->ovp_stat);
> +
> + if ((pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER | SDVIO_OC_NOW | SDVIO_OC_EVER)) ||
> + (pcr->ocp_stat2 & (SD_VDD3_OC_NOW | SD_VDD3_OC_EVER)) ||
> + (pcr->ovp_stat & (RTS5264_OVP_NOW | RTS5264_OVP_EVER))) {
> + rts5264_clear_ocpstat(pcr);
> + rts5264_card_power_off(pcr, RTSX_SD_CARD);
> + rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
> + pcr->ocp_stat = 0;
> + pcr->ocp_stat2 = 0;
> + pcr->ovp_stat = 0;
> + }
> +}
> +
> +static void rts5264_init_from_hw(struct rtsx_pcr *pcr)
> +{
> + struct pci_dev *pdev = pcr->pci;
> + u32 lval1, lval2, i;
> + u16 setting_reg1, setting_reg2;
> + u8 valid, efuse_valid, tmp;
> +
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + REG_EFUSE_POR | REG_EFUSE_POWER_MASK,
> + REG_EFUSE_POR | REG_EFUSE_POWERON);
> + udelay(1);
> + rtsx_pci_write_register(pcr, RTS5264_EFUSE_ADDR,
> + RTS5264_EFUSE_ADDR_MASK, 0x00);
> + rtsx_pci_write_register(pcr, RTS5264_EFUSE_CTL,
> + RTS5264_EFUSE_ENABLE | RTS5264_EFUSE_MODE_MASK,
> + RTS5264_EFUSE_ENABLE);
> +
> + /* Wait transfer end */
> + for (i = 0; i < MAX_RW_REG_CNT; i++) {
> + rtsx_pci_read_register(pcr, RTS5264_EFUSE_CTL, &tmp);
> + if ((tmp & 0x80) == 0)
> + break;
> + }
> + rtsx_pci_read_register(pcr, RTS5264_EFUSE_READ_DATA, &tmp);
> + efuse_valid = ((tmp & 0x0C) >> 2);
> + pcr_dbg(pcr, "Load efuse valid: 0x%x\n", efuse_valid);
> +
> + pci_read_config_dword(pdev, PCR_SETTING_REG2, &lval2);
> + pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", PCR_SETTING_REG2, lval2);
> + /* 0x816 */
> + valid = (u8)((lval2 >> 16) & 0x03);
> +
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + REG_EFUSE_POR, 0);
> + pcr_dbg(pcr, "Disable efuse por!\n");
> +
> + if (efuse_valid == 2 || efuse_valid == 3) {
> + if (valid == 3) {
> + /* Bypass efuse */
> + setting_reg1 = PCR_SETTING_REG1;
> + setting_reg2 = PCR_SETTING_REG2;
> + } else {
> + /* Use efuse data */
> + setting_reg1 = PCR_SETTING_REG4;
> + setting_reg2 = PCR_SETTING_REG5;
> + }
> + } else if (efuse_valid == 0) {
> + // default
> + setting_reg1 = PCR_SETTING_REG1;
> + setting_reg2 = PCR_SETTING_REG2;
> + } else {
> + return;
> + }
> +
> + pci_read_config_dword(pdev, setting_reg2, &lval2);
> + pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", setting_reg2, lval2);
> +
> + if (!rts5264_vendor_setting_valid(lval2)) {
> + pcr_dbg(pcr, "skip fetch vendor setting\n");
> + return;
> + }
> +
> + pcr->rtd3_en = rts5264_reg_to_rtd3(lval2);
> +
> + if (rts5264_reg_check_reverse_socket(lval2))
> + pcr->flags |= PCR_REVERSE_SOCKET;
> +
> + pci_read_config_dword(pdev, setting_reg1, &lval1);
> + pcr_dbg(pcr, "Cfg 0x%x: 0x%x\n", setting_reg1, lval1);
> +
> + pcr->aspm_en = rts5264_reg_to_aspm(lval1);
> + pcr->sd30_drive_sel_1v8 = rts5264_reg_to_sd30_drive_sel_1v8(lval1);
> + pcr->sd30_drive_sel_3v3 = rts5264_reg_to_sd30_drive_sel_3v3(lval1);
> +
> + if (setting_reg1 == PCR_SETTING_REG1) {
> + /* store setting */
> + rtsx_pci_write_register(pcr, 0xFF0C, 0xFF, (u8)(lval1 & 0xFF));
> + rtsx_pci_write_register(pcr, 0xFF0D, 0xFF, (u8)((lval1 >> 8) & 0xFF));
> + rtsx_pci_write_register(pcr, 0xFF0E, 0xFF, (u8)((lval1 >> 16) & 0xFF));
> + rtsx_pci_write_register(pcr, 0xFF0F, 0xFF, (u8)((lval1 >> 24) & 0xFF));
> + rtsx_pci_write_register(pcr, 0xFF10, 0xFF, (u8)(lval2 & 0xFF));
> + rtsx_pci_write_register(pcr, 0xFF11, 0xFF, (u8)((lval2 >> 8) & 0xFF));
> + rtsx_pci_write_register(pcr, 0xFF12, 0xFF, (u8)((lval2 >> 16) & 0xFF));
> +
> + pci_write_config_dword(pdev, PCR_SETTING_REG4, lval1);
> + lval2 = lval2 & 0x00FFFFFF;
> + pci_write_config_dword(pdev, PCR_SETTING_REG5, lval2);
> + }
> +}
> +
> +static void rts5264_init_from_cfg(struct rtsx_pcr *pcr)
> +{
> + struct rtsx_cr_option *option = &pcr->option;
> +
> + if (rtsx_check_dev_flag(pcr, ASPM_L1_1_EN | ASPM_L1_2_EN
> + | PM_L1_1_EN | PM_L1_2_EN))
> + rtsx_pci_disable_oobs_polling(pcr);
> + else
> + rtsx_pci_enable_oobs_polling(pcr);
> +
> + rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, 0xFF, 0);
> +
> + if (option->ltr_en) {
> + if (option->ltr_enabled)
> + rtsx_set_ltr_latency(pcr, option->ltr_active_latency);
> + }
> +}
> +
> +static int rts5264_extra_init_hw(struct rtsx_pcr *pcr)
> +{
> + struct rtsx_cr_option *option = &pcr->option;
> +
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG1,
> + CD_RESUME_EN_MASK, CD_RESUME_EN_MASK);
> + rtsx_pci_write_register(pcr, REG_VREF, PWD_SUSPND_EN, PWD_SUSPND_EN);
> +
> + rts5264_init_from_cfg(pcr);
> + rts5264_init_from_hw(pcr);
> +
> + /* power off efuse */
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + REG_EFUSE_POWER_MASK, REG_EFUSE_POWEROFF);
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG2,
> + RTS5264_CHIP_RST_N_SEL, 0);
> + rtsx_pci_write_register(pcr, RTS5264_REG_LDO12_CFG,
> + RTS5264_LDO12_SR_MASK, RTS5264_LDO12_SR_0_0_MS);
> + rtsx_pci_write_register(pcr, CDGW, 0xFF, 0x01);
> + rtsx_pci_write_register(pcr, RTS5264_CKMUX_MBIAS_PWR,
> + RTS5264_POW_CKMUX, RTS5264_POW_CKMUX);
> + rtsx_pci_write_register(pcr, RTS5264_CMD_OE_START_EARLY,
> + RTS5264_CMD_OE_EARLY_EN | RTS5264_CMD_OE_EARLY_CYCLE_MASK,
> + RTS5264_CMD_OE_EARLY_EN);
> + rtsx_pci_write_register(pcr, RTS5264_DAT_OE_START_EARLY,
> + RTS5264_DAT_OE_EARLY_EN | RTS5264_DAT_OE_EARLY_CYCLE_MASK,
> + RTS5264_DAT_OE_EARLY_EN);
> + rtsx_pci_write_register(pcr, SSC_DIV_N_0, 0xFF, 0x5D);
> +
> + rtsx_pci_write_register(pcr, RTS5264_PWR_CUT,
> + RTS5264_CFG_MEM_PD, RTS5264_CFG_MEM_PD);
> + rtsx_pci_write_register(pcr, L1SUB_CONFIG1,
> + AUX_CLK_ACTIVE_SEL_MASK, MAC_CKSW_DONE);
> + rtsx_pci_write_register(pcr, L1SUB_CONFIG3, 0xFF, 0);
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG4,
> + RTS5264_AUX_CLK_16M_EN, 0);
> +
> + /* Release PRSNT# */
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG4,
> + RTS5264_FORCE_PRSNT_LOW, 0);
> + rtsx_pci_write_register(pcr, PCLK_CTL,
> + PCLK_MODE_SEL, PCLK_MODE_SEL);
> +
> + /* LED shine disabled, set initial shine cycle period */
> + rtsx_pci_write_register(pcr, OLT_LED_CTL, 0x0F, 0x02);
> +
> + /* Configure driving */
> + rts5264_fill_driving(pcr, OUTPUT_3V3);
> +
> + if (pcr->flags & PCR_REVERSE_SOCKET)
> + rtsx_pci_write_register(pcr, PETXCFG, 0x30, 0x30);
> + else
> + rtsx_pci_write_register(pcr, PETXCFG, 0x30, 0x00);
> +
> + /*
> + * 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);
> +
> + rtsx_pci_write_register(pcr, PWD_SUSPEND_EN, 0xFF, 0xFF);
> + rtsx_pci_write_register(pcr, RBCTL, U_AUTO_DMA_EN_MASK, 0);
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG4,
> + RTS5264_F_HIGH_RC_MASK, RTS5264_F_HIGH_RC_400K);
> +
> + if (pcr->rtd3_en) {
> + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x01, 0x00);
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + FORCE_PM_CONTROL | FORCE_PM_VALUE, 0);
> + } else {
> + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, 0x01, 0x00);
> + rtsx_pci_write_register(pcr, RTS5264_REG_PME_FORCE_CTL,
> + FORCE_PM_CONTROL | FORCE_PM_VALUE, FORCE_PM_CONTROL);
> + }
> + rtsx_pci_write_register(pcr, pcr->reg_pm_ctrl3, D3_DELINK_MODE_EN, 0x00);
> +
> + /* Clear Enter RTD3_cold Information*/
> + rtsx_pci_write_register(pcr, RTS5264_FW_CTL,
> + RTS5264_INFORM_RTD3_COLD, 0);
> +
> + return 0;
> +}
> +
> +static void rts5264_enable_aspm(struct rtsx_pcr *pcr, bool enable)
> +{
> + u8 val = FORCE_ASPM_CTL0 | FORCE_ASPM_CTL1;
> + u8 mask = FORCE_ASPM_VAL_MASK | FORCE_ASPM_CTL0 | FORCE_ASPM_CTL1;
> +
> + if (pcr->aspm_enabled == enable)
> + return;
> +
> + val |= (pcr->aspm_en & 0x02);
> + rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, mask, val);
> + pcie_capability_clear_and_set_word(pcr->pci, PCI_EXP_LNKCTL,
> + PCI_EXP_LNKCTL_ASPMC, pcr->aspm_en);
> + pcr->aspm_enabled = enable;
> +}
> +
> +static void rts5264_disable_aspm(struct rtsx_pcr *pcr, bool enable)
> +{
> + u8 val = FORCE_ASPM_CTL0 | FORCE_ASPM_CTL1;
> + u8 mask = FORCE_ASPM_VAL_MASK | FORCE_ASPM_CTL0 | FORCE_ASPM_CTL1;
> +
> + if (pcr->aspm_enabled == enable)
> + return;
> +
> + pcie_capability_clear_and_set_word(pcr->pci, PCI_EXP_LNKCTL,
> + PCI_EXP_LNKCTL_ASPMC, 0);
> + rtsx_pci_write_register(pcr, ASPM_FORCE_CTL, mask, val);
> + rtsx_pci_write_register(pcr, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
> + udelay(10);
> + pcr->aspm_enabled = enable;
> +}
> +
> +static void rts5264_set_aspm(struct rtsx_pcr *pcr, bool enable)
> +{
> + if (enable)
> + rts5264_enable_aspm(pcr, true);
> + else
> + rts5264_disable_aspm(pcr, false);
> +}
> +
> +static void rts5264_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);
> + 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 rts5264_pcr_ops = {
> + .turn_on_led = rts5264_turn_on_led,
> + .turn_off_led = rts5264_turn_off_led,
> + .extra_init_hw = rts5264_extra_init_hw,
> + .enable_auto_blink = rts5264_enable_auto_blink,
> + .disable_auto_blink = rts5264_disable_auto_blink,
> + .card_power_on = rts5264_card_power_on,
> + .card_power_off = rts5264_card_power_off,
> + .switch_output_voltage = rts5264_switch_output_voltage,
> + .force_power_down = rts5264_force_power_down,
> + .stop_cmd = rts5264_stop_cmd,
> + .set_aspm = rts5264_set_aspm,
> + .set_l1off_cfg_sub_d0 = rts5264_set_l1off_cfg_sub_d0,
> + .enable_ocp = rts5264_enable_ocp,
> + .disable_ocp = rts5264_disable_ocp,
> + .init_ocp = rts5264_init_ocp,
> + .process_ocp = rts5264_process_ocp,
> + .clear_ocpstat = rts5264_clear_ocpstat,
> +};
> +
> +static inline u8 double_ssc_depth(u8 depth)
> +{
> + return ((depth > 1) ? (depth - 1) : depth);
> +}
> +
> +int rts5264_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
> + u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk)
> +{
> + int err, clk;
> + u16 n;
> + u8 clk_divider, mcu_cnt, div;
> + static const u8 depth[] = {
> + [RTSX_SSC_DEPTH_4M] = RTS5264_SSC_DEPTH_4M,
> + [RTSX_SSC_DEPTH_2M] = RTS5264_SSC_DEPTH_2M,
> + [RTSX_SSC_DEPTH_1M] = RTS5264_SSC_DEPTH_1M,
> + [RTSX_SSC_DEPTH_500K] = RTS5264_SSC_DEPTH_512K,
> + };
> +
> + if (initial_mode) {
> + /* We use 250k(around) here, in initial stage */
> + clk_divider = SD_CLK_DIVIDE_128;
> + card_clock = 30000000;
> + } else {
> + clk_divider = SD_CLK_DIVIDE_0;
> + }
> + err = rtsx_pci_write_register(pcr, SD_CFG1,
> + SD_CLK_DIVIDE_MASK, clk_divider);
> + if (err < 0)
> + return err;
> +
> + card_clock /= 1000000;
> + pcr_dbg(pcr, "Switch card clock to %dMHz\n", card_clock);
> +
> + clk = card_clock;
> + if (!initial_mode && double_clk)
> + clk = card_clock * 2;
> + pcr_dbg(pcr, "Internal SSC clock: %dMHz (cur_clock = %d)\n",
> + clk, pcr->cur_clock);
> +
> + if (clk == pcr->cur_clock)
> + return 0;
> +
> + if (pcr->ops->conv_clk_and_div_n)
> + n = pcr->ops->conv_clk_and_div_n(clk, CLK_TO_DIV_N);
> + else
> + n = clk - 4;
> + if ((clk <= 4) || (n > 396))
> + return -EINVAL;
> +
> + mcu_cnt = 125/clk + 3;
> + if (mcu_cnt > 15)
> + mcu_cnt = 15;
> +
> + div = CLK_DIV_1;
> + while ((n < MIN_DIV_N_PCR - 4) && (div < CLK_DIV_8)) {
> + if (pcr->ops->conv_clk_and_div_n) {
> + int dbl_clk = pcr->ops->conv_clk_and_div_n(n,
> + DIV_N_TO_CLK) * 2;
> + n = pcr->ops->conv_clk_and_div_n(dbl_clk,
> + CLK_TO_DIV_N);
> + } else {
> + n = (n + 4) * 2 - 4;
> + }
> + div++;
> + }
> +
> + n = (n / 2) - 1;
> + pcr_dbg(pcr, "n = %d, div = %d\n", n, div);
> +
> + ssc_depth = depth[ssc_depth];
> + if (double_clk)
> + ssc_depth = double_ssc_depth(ssc_depth);
> +
> + if (ssc_depth) {
> + if (div == CLK_DIV_2) {
> + if (ssc_depth > 1)
> + ssc_depth -= 1;
> + else
> + ssc_depth = RTS5264_SSC_DEPTH_8M;
> + } else if (div == CLK_DIV_4) {
> + if (ssc_depth > 2)
> + ssc_depth -= 2;
> + else
> + ssc_depth = RTS5264_SSC_DEPTH_8M;
> + } else if (div == CLK_DIV_8) {
> + if (ssc_depth > 3)
> + ssc_depth -= 3;
> + else
> + ssc_depth = RTS5264_SSC_DEPTH_8M;
> + }
> + } else {
> + ssc_depth = 0;
> + }
> + pcr_dbg(pcr, "ssc_depth = %d\n", ssc_depth);
> +
> + rtsx_pci_init_cmd(pcr);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_CTL,
> + CHANGE_CLK, CHANGE_CLK);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_DIV,
> + 0xFF, (div << 4) | mcu_cnt);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, 0);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL2,
> + SSC_DEPTH_MASK, ssc_depth);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_DIV_N_0, 0xFF, n);
> +
> + if (is_version(pcr, 0x5264, IC_VER_A)) {
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, 0);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, RTS5264_CARD_CLK_SRC2,
> + RTS5264_REG_BIG_KVCO_A, 0);
> + } else {
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, SSC_RSTB);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, RTS5264_SYS_DUMMY_1,
> + RTS5264_REG_BIG_KVCO, 0);
> + }
> +
> + if (vpclk) {
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK0_CTL,
> + PHASE_NOT_RESET, 0);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK1_CTL,
> + PHASE_NOT_RESET, 0);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK0_CTL,
> + PHASE_NOT_RESET, PHASE_NOT_RESET);
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK1_CTL,
> + PHASE_NOT_RESET, PHASE_NOT_RESET);
> + }
> +
> + err = rtsx_pci_send_cmd(pcr, 2000);
> + if (err < 0)
> + return err;
> +
> + /* Wait SSC clock stable */
> + udelay(SSC_CLOCK_STABLE_WAIT);
> + err = rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, 0);
> + if (err < 0)
> + return err;
> +
> + pcr->cur_clock = clk;
> + return 0;
> +}
> +
> +void rts5264_init_params(struct rtsx_pcr *pcr)
> +{
> + struct rtsx_cr_option *option = &pcr->option;
> + struct rtsx_hw_param *hw_param = &pcr->hw_param;
> + u8 val;
> +
> + pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
> + pcr->extra_caps |= EXTRA_CAPS_NO_MMC;
> + rtsx_pci_read_register(pcr, RTS5264_FW_STATUS, &val);
> + if (!(val & RTS5264_EXPRESS_LINK_FAIL_MASK))
> + pcr->extra_caps |= EXTRA_CAPS_SD_EXPRESS;
> + pcr->num_slots = 1;
> + pcr->ops = &rts5264_pcr_ops;
> +
> + pcr->flags = 0;
> + pcr->card_drive_sel = RTSX_CARD_DRIVE_DEFAULT;
> + pcr->sd30_drive_sel_1v8 = 0x00;
> + pcr->sd30_drive_sel_3v3 = 0x00;
> + pcr->aspm_en = ASPM_L1_EN;
> + pcr->aspm_mode = ASPM_MODE_REG;
> + pcr->tx_initial_phase = SET_CLOCK_PHASE(24, 24, 11);
> + pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
> +
> + pcr->ic_version = rts5264_get_ic_version(pcr);
> + pcr->sd_pull_ctl_enable_tbl = rts5264_sd_pull_ctl_enable_tbl;
> + pcr->sd_pull_ctl_disable_tbl = rts5264_sd_pull_ctl_disable_tbl;
> +
> + pcr->reg_pm_ctrl3 = RTS5264_AUTOLOAD_CFG3;
> +
> + 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->l1_snooze_delay = L1_SNOOZE_DELAY_DEF;
> + option->ltr_l1off_sspwrgate = 0x7F;
> + option->ltr_l1off_snooze_sspwrgate = 0x78;
> +
> + option->ocp_en = 1;
> + hw_param->interrupt_en |= (SD_OC_INT_EN | SD_OVP_INT_EN);
> + hw_param->ocp_glitch = SD_OCP_GLITCH_800U | SDVIO_OCP_GLITCH_800U;
> + option->sd_800mA_ocp_thd = RTS5264_LDO1_OCP_THD_1150;
> +}
> diff --git a/drivers/misc/cardreader/rts5264.h b/drivers/misc/cardreader/rts5264.h
> new file mode 100644
> index 000000000000..e3cbbf2fe1a4
> --- /dev/null
> +++ b/drivers/misc/cardreader/rts5264.h
> @@ -0,0 +1,278 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/* Driver for Realtek PCI-Express card reader
> + *
> + * Copyright(c) 2018-2019 Realtek Semiconductor Corp. All rights reserved.
> + *
> + * Author:
> + * Ricky Wu <ricky_wu@...ltek.com>
> + */
> +#ifndef RTS5264_H
> +#define RTS5264_H
> +
> +/*New add*/
> +#define rts5264_vendor_setting_valid(reg) ((reg) & 0x010000)
> +#define rts5264_reg_to_aspm(reg) \
> + (((~(reg) >> 28) & 0x02) | (((reg) >> 28) & 0x01))
> +#define rts5264_reg_check_reverse_socket(reg) ((reg) & 0x04)
> +#define rts5264_reg_to_sd30_drive_sel_1v8(reg) (((reg) >> 22) & 0x03)
> +#define rts5264_reg_to_sd30_drive_sel_3v3(reg) (((reg) >> 16) & 0x03)
> +#define rts5264_reg_to_rtd3(reg) ((reg) & 0x08)
> +
> +#define RTS5264_AUTOLOAD_CFG0 0xFF7B
> +#define RTS5264_AUTOLOAD_CFG1 0xFF7C
> +#define RTS5264_AUTOLOAD_CFG3 0xFF7E
> +#define RTS5264_AUTOLOAD_CFG4 0xFF7F
> +#define RTS5264_FORCE_PRSNT_LOW (1 << 6)
> +#define RTS5264_AUX_CLK_16M_EN (1 << 5)
> +#define RTS5264_F_HIGH_RC_MASK (1 << 4)
> +#define RTS5264_F_HIGH_RC_1_6M (1 << 4)
> +#define RTS5264_F_HIGH_RC_400K (0 << 4)
> +
> +/* SSC_CTL2 0xFC12 */
> +#define RTS5264_SSC_DEPTH_MASK 0x07
> +#define RTS5264_SSC_DEPTH_DISALBE 0x00
> +#define RTS5264_SSC_DEPTH_8M 0x01
> +#define RTS5264_SSC_DEPTH_4M 0x02
> +#define RTS5264_SSC_DEPTH_2M 0x03
> +#define RTS5264_SSC_DEPTH_1M 0x04
> +#define RTS5264_SSC_DEPTH_512K 0x05
> +#define RTS5264_SSC_DEPTH_256K 0x06
> +#define RTS5264_SSC_DEPTH_128K 0x07
> +
> +#define RTS5264_CARD_CLK_SRC2 0xFC2F
> +#define RTS5264_REG_BIG_KVCO_A 0x20
> +
> +/* efuse control register*/
> +#define RTS5264_EFUSE_CTL 0xFC30
> +#define RTS5264_EFUSE_ENABLE 0x80
> +/* EFUSE_MODE: 0=READ 1=PROGRAM */
> +#define RTS5264_EFUSE_MODE_MASK 0x40
> +#define RTS5264_EFUSE_PROGRAM 0x40
> +
> +#define RTS5264_EFUSE_ADDR 0xFC31
> +#define RTS5264_EFUSE_ADDR_MASK 0x3F
> +
> +#define RTS5264_EFUSE_WRITE_DATA 0xFC32
> +#define RTS5264_EFUSE_READ_DATA 0xFC34
> +
> +#define RTS5264_SYS_DUMMY_1 0xFC35
> +#define RTS5264_REG_BIG_KVCO 0x04
> +
> +/* DMACTL 0xFE2C */
> +#define RTS5264_DMA_PACK_SIZE_MASK 0x70
> +
> +#define RTS5264_FW_CFG1 0xFF55
> +#define RTS5264_SYS_CLK_SEL_MCU_CLK (0x01<<7)
> +#define RTS5264_CRC_CLK_SEL_MCU_CLK (0x01<<6)
> +#define RTS5264_FAKE_MCU_CLOCK_GATING (0x01<<5)
> +#define RTS5264_MCU_BUS_SEL_MASK (0x01<<4)
> +
> +/* FW status register */
> +#define RTS5264_FW_STATUS 0xFF56
> +#define RTS5264_EXPRESS_LINK_FAIL_MASK (0x01<<7)
> +
> +/* FW control register */
> +#define RTS5264_FW_CTL 0xFF5F
> +#define RTS5264_INFORM_RTD3_COLD (0x01<<5)
> +
> +#define RTS5264_REG_FPDCTL 0xFF60
> +
> +#define RTS5264_REG_LDO12_CFG 0xFF6E
> +#define RTS5264_LDO12_SR_MASK (0x03<<6)
> +#define RTS5264_LDO12_SR_1_0_MS (0x03<<6)
> +#define RTS5264_LDO12_SR_0_5_MS (0x02<<6)
> +#define RTS5264_LDO12_SR_0_2_5_MS (0x01<<6)
> +#define RTS5264_LDO12_SR_0_0_MS (0x00<<6)
> +#define RTS5264_LDO12_VO_TUNE_MASK (0x07<<1)
> +#define RTS5264_LDO12_115 (0x03<<1)
> +#define RTS5264_LDO12_120 (0x04<<1)
> +#define RTS5264_LDO12_125 (0x05<<1)
> +#define RTS5264_LDO12_130 (0x06<<1)
> +#define RTS5264_LDO12_135 (0x07<<1)
> +
> +/* LDO control register */
> +#define RTS5264_CARD_PWR_CTL 0xFD50
> +#define RTS5264_SD_CLK_ISO (0x01<<7)
> +#define RTS5264_PAD_SD_DAT_FW_CTRL (0x01<<6)
> +#define RTS5264_PUPDC (0x01<<5)
> +#define RTS5264_SD_CMD_ISO (0x01<<4)
> +
> +#define RTS5264_OCP_VDD3_CTL 0xFD89
> +#define SD_VDD3_DETECT_EN 0x08
> +#define SD_VDD3_OCP_INT_EN 0x04
> +#define SD_VDD3_OCP_INT_CLR 0x02
> +#define SD_VDD3_OC_CLR 0x01
> +
> +#define RTS5264_OCP_VDD3_STS 0xFD8A
> +#define SD_VDD3_OCP_DETECT 0x08
> +#define SD_VDD3_OC_NOW 0x04
> +#define SD_VDD3_OC_EVER 0x02
> +
> +#define RTS5264_OVP_CTL 0xFD8D
> +#define RTS5264_OVP_TIME_MASK 0xF0
> +#define RTS5264_OVP_TIME_DFT 0x50
> +#define RTS5264_OVP_DETECT_EN 0x08
> +#define RTS5264_OVP_INT_EN 0x04
> +#define RTS5264_OVP_INT_CLR 0x02
> +#define RTS5264_OVP_CLR 0x01
> +
> +#define RTS5264_OVP_STS 0xFD8E
> +#define RTS5264_OVP_GLTCH_TIME_MASK 0xF0
> +#define RTS5264_OVP_GLTCH_TIME_DFT 0x50
> +#define RTS5264_VOVER_DET 0x08
> +#define RTS5264_OVP_NOW 0x04
> +#define RTS5264_OVP_EVER 0x02
> +
> +#define RTS5264_CMD_OE_START_EARLY 0xFDCB
> +#define RTS5264_CMD_OE_EARLY_LEAVE 0x08
> +#define RTS5264_CMD_OE_EARLY_CYCLE_MASK 0x06
> +#define RTS5264_CMD_OE_EARLY_4CYCLE 0x06
> +#define RTS5264_CMD_OE_EARLY_3CYCLE 0x04
> +#define RTS5264_CMD_OE_EARLY_2CYCLE 0x02
> +#define RTS5264_CMD_OE_EARLY_1CYCLE 0x00
> +#define RTS5264_CMD_OE_EARLY_EN 0x01
> +
> +#define RTS5264_DAT_OE_START_EARLY 0xFDCC
> +#define RTS5264_DAT_OE_EARLY_LEAVE 0x08
> +#define RTS5264_DAT_OE_EARLY_CYCLE_MASK 0x06
> +#define RTS5264_DAT_OE_EARLY_4CYCLE 0x06
> +#define RTS5264_DAT_OE_EARLY_3CYCLE 0x04
> +#define RTS5264_DAT_OE_EARLY_2CYCLE 0x02
> +#define RTS5264_DAT_OE_EARLY_1CYCLE 0x00
> +#define RTS5264_DAT_OE_EARLY_EN 0x01
> +
> +#define RTS5264_LDO1233318_POW_CTL 0xFF70
> +#define RTS5264_TUNE_REF_LDO3318 (0x03<<6)
> +#define RTS5264_TUNE_REF_LDO3318_DFT (0x02<<6)
> +#define RTS5264_LDO3318_POWERON (0x01<<3)
> +#define RTS5264_LDO3_POWERON (0x01<<2)
> +#define RTS5264_LDO2_POWERON (0x01<<1)
> +#define RTS5264_LDO1_POWERON (0x01<<0)
> +#define RTS5264_LDO_POWERON_MASK (0x0F<<0)
> +
> +#define RTS5264_DV3318_CFG 0xFF71
> +#define RTS5264_DV3318_TUNE_MASK (0x07<<4)
> +#define RTS5264_DV3318_18 (0x02<<4)
> +#define RTS5264_DV3318_19 (0x04<<4)
> +#define RTS5264_DV3318_33 (0x07<<4)
> +
> +#define RTS5264_LDO1_CFG0 0xFF72
> +#define RTS5264_LDO1_OCP_THD_MASK (0x07 << 5)
> +#define RTS5264_LDO1_OCP_EN (0x01 << 4)
> +#define RTS5264_LDO1_OCP_LMT_THD_MASK (0x03 << 2)
> +#define RTS5264_LDO1_OCP_LMT_EN (0x01 << 1)
> +
> +#define RTS5264_LDO1_OCP_THD_850 (0x00<<5)
> +#define RTS5264_LDO1_OCP_THD_950 (0x01<<5)
> +#define RTS5264_LDO1_OCP_THD_1050 (0x02<<5)
> +#define RTS5264_LDO1_OCP_THD_1100 (0x03<<5)
> +#define RTS5264_LDO1_OCP_THD_1150 (0x04<<5)
> +#define RTS5264_LDO1_OCP_THD_1200 (0x05<<5)
> +#define RTS5264_LDO1_OCP_THD_1300 (0x06<<5)
> +#define RTS5264_LDO1_OCP_THD_1350 (0x07<<5)
> +
> +#define RTS5264_LDO1_LMT_THD_1700 (0x00<<2)
> +#define RTS5264_LDO1_LMT_THD_1800 (0x01<<2)
> +#define RTS5264_LDO1_LMT_THD_1900 (0x02<<2)
> +#define RTS5264_LDO1_LMT_THD_2000 (0x03<<2)
> +
> +#define RTS5264_LDO1_CFG1 0xFF73
> +#define RTS5264_LDO1_TUNE_MASK (0x07<<1)
> +#define RTS5264_LDO1_18 (0x05<<1)
> +#define RTS5264_LDO1_33 (0x07<<1)
> +#define RTS5264_LDO1_PWD_MASK (0x01<<0)
> +
> +#define RTS5264_LDO2_CFG0 0xFF74
> +#define RTS5264_LDO2_OCP_THD_MASK (0x07<<5)
> +#define RTS5264_LDO2_OCP_EN (0x01<<4)
> +#define RTS5264_LDO2_OCP_LMT_THD_MASK (0x03<<2)
> +#define RTS5264_LDO2_OCP_LMT_EN (0x01<<1)
> +
> +#define RTS5264_LDO2_OCP_THD_750 (0x00<<5)
> +#define RTS5264_LDO2_OCP_THD_850 (0x01<<5)
> +#define RTS5264_LDO2_OCP_THD_900 (0x02<<5)
> +#define RTS5264_LDO2_OCP_THD_950 (0x03<<5)
> +#define RTS5264_LDO2_OCP_THD_1050 (0x04<<5)
> +#define RTS5264_LDO2_OCP_THD_1100 (0x05<<5)
> +#define RTS5264_LDO2_OCP_THD_1150 (0x06<<5)
> +#define RTS5264_LDO2_OCP_THD_1200 (0x07<<5)
> +
> +#define RTS5264_LDO2_LMT_THD_1700 (0x00<<2)
> +#define RTS5264_LDO2_LMT_THD_1800 (0x01<<2)
> +#define RTS5264_LDO2_LMT_THD_1900 (0x02<<2)
> +#define RTS5264_LDO2_LMT_THD_2000 (0x03<<2)
> +
> +#define RTS5264_LDO2_CFG1 0xFF75
> +#define RTS5264_LDO2_TUNE_MASK (0x07<<1)
> +#define RTS5264_LDO2_18 (0x02<<1)
> +#define RTS5264_LDO2_185 (0x03<<1)
> +#define RTS5264_LDO2_19 (0x04<<1)
> +#define RTS5264_LDO2_195 (0x05<<1)
> +#define RTS5264_LDO2_33 (0x07<<1)
> +#define RTS5264_LDO2_PWD_MASK (0x01<<0)
> +
> +#define RTS5264_LDO3_CFG0 0xFF76
> +#define RTS5264_LDO3_OCP_THD_MASK (0x07<<5)
> +#define RTS5264_LDO3_OCP_EN (0x01<<4)
> +#define RTS5264_LDO3_OCP_LMT_THD_MASK (0x03<<2)
> +#define RTS5264_LDO3_OCP_LMT_EN (0x01<<1)
> +
> +#define RTS5264_LDO3_OCP_THD_610 (0x00<<5)
> +#define RTS5264_LDO3_OCP_THD_630 (0x01<<5)
> +#define RTS5264_LDO3_OCP_THD_670 (0x02<<5)
> +#define RTS5264_LDO3_OCP_THD_710 (0x03<<5)
> +#define RTS5264_LDO3_OCP_THD_750 (0x04<<5)
> +#define RTS5264_LDO3_OCP_THD_770 (0x05<<5)
> +#define RTS5264_LDO3_OCP_THD_810 (0x06<<5)
> +#define RTS5264_LDO3_OCP_THD_850 (0x07<<5)
> +
> +#define RTS5264_LDO3_LMT_THD_1200 (0x00<<2)
> +#define RTS5264_LDO3_LMT_THD_1300 (0x01<<2)
> +#define RTS5264_LDO3_LMT_THD_1400 (0x02<<2)
> +#define RTS5264_LDO3_LMT_THD_1500 (0x03<<2)
> +
> +#define RTS5264_LDO3_CFG1 0xFF77
> +#define RTS5264_LDO3_TUNE_MASK (0x07<<1)
> +#define RTS5264_LDO3_12 (0x02<<1)
> +#define RTS5264_LDO3_125 (0x03<<1)
> +#define RTS5264_LDO3_13 (0x04<<1)
> +#define RTS5264_LDO3_135 (0x05<<1)
> +#define RTS5264_LDO3_33 (0x07<<1)
> +#define RTS5264_LDO3_PWD_MASK (0x01<<0)
> +
> +#define RTS5264_REG_PME_FORCE_CTL 0xFF78
> +#define FORCE_PM_CONTROL 0x20
> +#define FORCE_PM_VALUE 0x10
> +#define REG_EFUSE_BYPASS 0x08
> +#define REG_EFUSE_POR 0x04
> +#define REG_EFUSE_POWER_MASK 0x03
> +#define REG_EFUSE_POWERON 0x03
> +#define REG_EFUSE_POWEROFF 0x00
> +
> +#define RTS5264_PWR_CUT 0xFF81
> +#define RTS5264_CFG_MEM_PD 0xF0
> +
> +#define RTS5264_OVP_DET 0xFF8A
> +#define RTS5264_POW_VDET 0x04
> +#define RTS5264_TUNE_VROV_MASK 0x03
> +#define RTS5264_TUNE_VROV_2V 0x03
> +#define RTS5264_TUNE_VROV_1V8 0x02
> +#define RTS5264_TUNE_VROV_1V6 0x01
> +#define RTS5264_TUNE_VROV_1V4 0x00
> +
> +#define RTS5264_CKMUX_MBIAS_PWR 0xFF8B
> +#define RTS5264_NON_XTAL_SEL 0x80
> +#define RTS5264_POW_CKMUX 0x40
> +#define RTS5264_LVD_MASK 0x04
> +#define RTS5264_POW_PSW_MASK 0x03
> +#define RTS5264_POW_PSW_DFT 0x03
> +
> +/* Single LUN, support SD/SD EXPRESS */
> +#define DEFAULT_SINGLE 0
> +#define SD_LUN 1
> +#define SD_EXPRESS_LUN 2
> +
> +int rts5264_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
> + u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk);
> +
> +#endif /* RTS5264_H */
> diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
> index a30751ad3733..1a64364700eb 100644
> --- a/drivers/misc/cardreader/rtsx_pcr.c
> +++ b/drivers/misc/cardreader/rtsx_pcr.c
> @@ -26,6 +26,7 @@
> #include "rtsx_pcr.h"
> #include "rts5261.h"
> #include "rts5228.h"
> +#include "rts5264.h"
>
> static bool msi_en = true;
> module_param(msi_en, bool, S_IRUGO | S_IWUSR);
> @@ -54,6 +55,7 @@ static const struct pci_device_id rtsx_pci_ids[] = {
> { PCI_DEVICE(0x10EC, 0x5260), PCI_CLASS_OTHERS << 16, 0xFF0000 },
> { PCI_DEVICE(0x10EC, 0x5261), PCI_CLASS_OTHERS << 16, 0xFF0000 },
> { PCI_DEVICE(0x10EC, 0x5228), PCI_CLASS_OTHERS << 16, 0xFF0000 },
> + { PCI_DEVICE(0x10EC, 0x5264), PCI_CLASS_OTHERS << 16, 0xFF0000 },
> { 0, }
> };
>
> @@ -714,6 +716,9 @@ int rtsx_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
> if (PCI_PID(pcr) == PID_5228)
> return rts5228_pci_switch_clock(pcr, card_clock,
> ssc_depth, initial_mode, double_clk, vpclk);
> + if (PCI_PID(pcr) == PID_5264)
> + return rts5264_pci_switch_clock(pcr, card_clock,
> + ssc_depth, initial_mode, double_clk, vpclk);
>
> if (initial_mode) {
> /* We use 250k(around) here, in initial stage */
> @@ -987,7 +992,8 @@ static irqreturn_t rtsx_pci_isr(int irq, void *dev_id)
>
> int_reg &= (pcr->bier | 0x7FFFFF);
>
> - if (int_reg & SD_OC_INT)
> + if ((int_reg & SD_OC_INT) ||
> + ((int_reg & SD_OVP_INT) && (PCI_PID(pcr) == PID_5264)))
> rtsx_pci_process_ocp_interrupt(pcr);
>
> if (int_reg & SD_INT) {
> @@ -1159,7 +1165,9 @@ void rtsx_pci_enable_oobs_polling(struct rtsx_pcr *pcr)
> {
> u16 val;
>
> - if ((PCI_PID(pcr) != PID_525A) && (PCI_PID(pcr) != PID_5260)) {
> + if ((PCI_PID(pcr) != PID_525A) &&
> + (PCI_PID(pcr) != PID_5260) &&
> + (PCI_PID(pcr) != PID_5264)) {
> rtsx_pci_read_phy_register(pcr, 0x01, &val);
> val |= 1<<9;
> rtsx_pci_write_phy_register(pcr, 0x01, val);
> @@ -1175,7 +1183,9 @@ void rtsx_pci_disable_oobs_polling(struct rtsx_pcr *pcr)
> {
> u16 val;
>
> - if ((PCI_PID(pcr) != PID_525A) && (PCI_PID(pcr) != PID_5260)) {
> + if ((PCI_PID(pcr) != PID_525A) &&
> + (PCI_PID(pcr) != PID_5260) &&
> + (PCI_PID(pcr) != PID_5264)) {
> rtsx_pci_read_phy_register(pcr, 0x01, &val);
> val &= ~(1<<9);
> rtsx_pci_write_phy_register(pcr, 0x01, val);
> @@ -1226,7 +1236,7 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
> rtsx_pci_enable_bus_int(pcr);
>
> /* Power on SSC */
> - if (PCI_PID(pcr) == PID_5261) {
> + if ((PCI_PID(pcr) == PID_5261) || (PCI_PID(pcr) == PID_5264)) {
> /* Gating real mcu clock */
> err = rtsx_pci_write_register(pcr, RTS5261_FW_CFG1,
> RTS5261_MCU_CLOCK_GATING, 0);
> @@ -1270,6 +1280,11 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
> else if (PCI_PID(pcr) == PID_5228)
> rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL2, 0xFF,
> RTS5228_SSC_DEPTH_2M);
> + else if (is_version(pcr, 0x5264, IC_VER_A))
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL1, SSC_RSTB, 0);
> + else if (PCI_PID(pcr) == PID_5264)
> + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL2, 0xFF,
> + RTS5264_SSC_DEPTH_2M);
> else
> rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SSC_CTL2, 0xFF, 0x12);
>
> @@ -1305,6 +1320,7 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
> case PID_5260:
> case PID_5261:
> case PID_5228:
> + case PID_5264:
> rtsx_pci_write_register(pcr, PM_CLK_FORCE_CTL, 1, 1);
> break;
> default:
> @@ -1404,6 +1420,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr)
> case 0x5228:
> rts5228_init_params(pcr);
> break;
> +
> + case 0x5264:
> + rts5264_init_params(pcr);
> + break;
> }
>
> pcr_dbg(pcr, "PID: 0x%04x, IC version: 0x%02x\n",
> @@ -1544,7 +1564,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
> pcr->pci = pcidev;
> dev_set_drvdata(&pcidev->dev, handle);
>
> - if (CHK_PCI_PID(pcr, 0x525A))
> + if ((CHK_PCI_PID(pcr, 0x525A)) || (CHK_PCI_PID(pcr, 0x5264)))
> bar = 1;
> len = pci_resource_len(pcidev, bar);
> base = pci_resource_start(pcidev, bar);
> diff --git a/drivers/misc/cardreader/rtsx_pcr.h b/drivers/misc/cardreader/rtsx_pcr.h
> index 37d1f316ae17..9215d66de00c 100644
> --- a/drivers/misc/cardreader/rtsx_pcr.h
> +++ b/drivers/misc/cardreader/rtsx_pcr.h
> @@ -74,6 +74,7 @@ void rtl8411b_init_params(struct rtsx_pcr *pcr);
> void rts5260_init_params(struct rtsx_pcr *pcr);
> void rts5261_init_params(struct rtsx_pcr *pcr);
> void rts5228_init_params(struct rtsx_pcr *pcr);
> +void rts5264_init_params(struct rtsx_pcr *pcr);
>
> static inline u8 map_sd_drive(int idx)
> {
> diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
> index 87d78432a1e0..7dfe7c4e0077 100644
> --- a/drivers/mmc/host/rtsx_pci_sdmmc.c
> +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
> @@ -7,6 +7,7 @@
> * Wei WANG <wei_wang@...lsil.com.cn>
> */
>
> +#include <linux/pci.h>
> #include <linux/module.h>
> #include <linux/slab.h>
> #include <linux/highmem.h>
> @@ -947,7 +948,7 @@ static int sd_power_on(struct realtek_pci_sdmmc *host, unsigned char power_mode)
> /* send at least 74 clocks */
> rtsx_pci_write_register(pcr, SD_BUS_STAT, SD_CLK_TOGGLE_EN, SD_CLK_TOGGLE_EN);
>
> - if (PCI_PID(pcr) == PID_5261) {
> + if ((PCI_PID(pcr) == PID_5261) || (PCI_PID(pcr) == PID_5264)) {
> /*
> * If test mode is set switch to SD Express mandatorily,
> * this is only for factory testing.
> @@ -1364,6 +1365,14 @@ static int sdmmc_init_sd_express(struct mmc_host *mmc, struct mmc_ios *ios)
> struct realtek_pci_sdmmc *host = mmc_priv(mmc);
> struct rtsx_pcr *pcr = host->pcr;
>
> + if (PCI_PID(pcr) == PID_5264) {
> + pcie_capability_clear_and_set_word(pcr->pci, PCI_EXP_LNKCTL2,
> + PCI_EXP_LNKCTL2_TLS, PCI_EXP_LNKCTL2_TLS_2_5GT);
> + pci_write_config_byte(pcr->pci, 0x80e, 0x02);
> + pcie_capability_clear_and_set_word(pcr->pci, PCI_EXP_LNKCTL2,
> + PCI_EXP_LNKCTL2_TLS, PCI_EXP_LNKCTL2_TLS_5_0GT);
> + }
> +
> /* Set relink_time for changing to PCIe card */
> relink_time = 0x8FFF;
>
> @@ -1379,6 +1388,12 @@ static int sdmmc_init_sd_express(struct mmc_host *mmc, struct mmc_ios *ios)
> if (pcr->ops->disable_auto_blink)
> pcr->ops->disable_auto_blink(pcr);
>
> + if (PCI_PID(pcr) == PID_5264) {
> + rtsx_pci_write_register(pcr, RTS5264_AUTOLOAD_CFG2,
> + RTS5264_CHIP_RST_N_SEL, RTS5264_CHIP_RST_N_SEL);
> + rtsx_pci_write_register(pcr, GPIO_CTL, 0x02, 0x00);
> + }
> +
> /* For PCIe/NVMe mode can't enter delink issue */
> pcr->hw_param.interrupt_en &= ~(SD_INT_EN);
> rtsx_pci_writel(pcr, RTSX_BIER, pcr->hw_param.interrupt_en);
> diff --git a/include/linux/rtsx_pci.h b/include/linux/rtsx_pci.h
> index 534038d962e4..4612ef09a0c7 100644
> --- a/include/linux/rtsx_pci.h
> +++ b/include/linux/rtsx_pci.h
> @@ -60,6 +60,7 @@
> #define SD_EXIST (1 << 16)
> #define DELINK_INT GPIO0_INT
> #define MS_OC_INT (1 << 23)
> +#define SD_OVP_INT (1 << 23)
> #define SD_OC_INT (1 << 22)
>
> #define CARD_INT (XD_INT | MS_INT | SD_INT)
> @@ -80,6 +81,7 @@
> #define OC_INT_EN (1 << 23)
> #define DELINK_INT_EN GPIO0_INT_EN
> #define MS_OC_INT_EN (1 << 23)
> +#define SD_OVP_INT_EN (1 << 23)
> #define SD_OC_INT_EN (1 << 22)
>
> #define RTSX_DUM_REG 0x1C
> @@ -583,6 +585,7 @@
> #define OBFF_DISABLE 0x00
>
> #define CDRESUMECTL 0xFE52
> +#define CDGW 0xFE53
> #define WAKE_SEL_CTL 0xFE54
> #define PCLK_CTL 0xFE55
> #define PCLK_MODE_SEL 0x20
> @@ -764,6 +767,9 @@
> #define SD_VIO_LDO_1V8 0x40
> #define SD_VIO_LDO_3V3 0x70
>
> +#define RTS5264_AUTOLOAD_CFG2 0xFF7D
> +#define RTS5264_CHIP_RST_N_SEL (1 << 6)
> +
> #define RTS5260_AUTOLOAD_CFG4 0xFF7F
> #define RTS5260_MIMO_DISABLE 0x8A
> /*RTS5261*/
> @@ -1261,6 +1267,7 @@ struct rtsx_pcr {
> u8 dma_error_count;
> u8 ocp_stat;
> u8 ocp_stat2;
> + u8 ovp_stat;
> u8 rtd3_en;
> };
>
> @@ -1271,6 +1278,7 @@ struct rtsx_pcr {
> #define PID_5260 0x5260
> #define PID_5261 0x5261
> #define PID_5228 0x5228
> +#define PID_5264 0x5264
>
> #define CHK_PCI_PID(pcr, pid) ((pcr)->pci->device == (pid))
> #define PCI_VID(pcr) ((pcr)->pci->vendor)
> --
> 2.25.1
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