| Message ID | 1412598187-5263-4-git-send-email-adrian.hunter@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index 7548261..9cccc0e 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -137,6 +137,11 @@ static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev, /* Platform specific code during emmc proble slot goes here */ + if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") && + sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 && + sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807) + host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */ + return 0; }
Braswell eMMC host controller specifies an incorrect timeout clock frequncy in the capabilities registers. The correct value is 1 MHz. A similar fix was done for sdhci-pci, however in the sdhci-acpi case the HID/UID is not unique so the capabilities register values are matched also. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- drivers/mmc/host/sdhci-acpi.c | 5 +++++ 1 file changed, 5 insertions(+)