diff options
| -rw-r--r-- | drivers/mmc/host/sdhci-pci-gli.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index 4a0f69b97a78..fd0939355584 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -123,6 +123,9 @@ #define PCI_GLI_9755_PLLSSC 0x68 #define PCI_GLI_9755_PLLSSC_PPM GENMASK(15, 0) +#define PCI_GLI_9755_SerDes 0x70 +#define PCI_GLI_9755_SCP_DIS BIT(19) + #define GLI_MAX_TUNING_LOOP 40 /* Genesys Logic chipset */ @@ -547,6 +550,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot) value &= ~PCI_GLI_9755_DMACLK; pci_write_config_dword(pdev, PCI_GLI_9755_PECONF, value); + /* enable short circuit protection */ + pci_read_config_dword(pdev, PCI_GLI_9755_SerDes, &value); + value &= ~PCI_GLI_9755_SCP_DIS; + pci_write_config_dword(pdev, PCI_GLI_9755_SerDes, value); + gl9755_wt_off(pdev); } |