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mmc: rtsx: add rts5264 to support sd express card

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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: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/20231208032145.2143580-4-ricky_wu@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ricky Wu 2023-12-08 11:21:45 +08:00 committed by Greg Kroah-Hartman
parent 6a511c9b3a
commit 117cc0efb0
1 changed files with 16 additions and 1 deletions
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17
drivers/mmc/host/rtsx_pci_sdmmc.c
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@ -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);