Commit 117cc0ef authored by Ricky Wu's avatar Ricky Wu Committed by Greg Kroah-Hartman
Browse files

mmc: rtsx: add rts5264 to support sd express card 



rts5264 can support sd express card, so add the id in sd express card init
to do rts5264 register setting when the sd express card insert

Signed-off-by: default avatarRicky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20231208032145.2143580-4-ricky_wu@realtek.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6a511c9b

drivers/mmc/host/rtsx_pci_sdmmc.c

+16 −1
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
 *   Wei WANG <wei_wang@realsil.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);