Add a vendor-specific bit named GLI_9763E_MB_ERP_ON at the bit7 of register 888h to decide whether to enhance random R/W performance of GL9763E. CQHCI support will be enabled if and only if the bit is set and the GLI_9763E_MB_CMQ_OFF bit is not set.
Signed-off-by: Renius Chen <[email protected]> --- drivers/mmc/host/sdhci-pci-gli.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index b85edd62e7f0..c6a107d7c742 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -84,6 +84,7 @@ #define GLI_9763E_VHS_REV_W 0x2 #define PCIE_GLI_9763E_MB 0x888 #define GLI_9763E_MB_CMDQ_OFF BIT(19) +#define GLI_9763E_MB_ERP_ON BIT(7) #define PCIE_GLI_9763E_SCR 0x8E0 #define GLI_9763E_SCR_AXI_REQ BIT(9) @@ -814,7 +815,8 @@ static int gli_probe_slot_gl9763e(struct sdhci_pci_slot *slot) pci_read_config_dword(pdev, PCIE_GLI_9763E_MB, &value); if (!(value & GLI_9763E_MB_CMDQ_OFF)) - host->mmc->caps2 |= MMC_CAP2_CQE | MMC_CAP2_CQE_DCMD; + if (value & GLI_9763E_MB_ERP_ON) + host->mmc->caps2 |= MMC_CAP2_CQE | MMC_CAP2_CQE_DCMD; gli_pcie_enable_msi(slot); host->mmc_host_ops.hs400_enhanced_strobe = -- 2.27.0
