diff options
Diffstat (limited to 'EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c')
| -rw-r--r-- | EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c index fe23d113ee..bb26b69fd1 100644 --- a/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c +++ b/EmbeddedPkg/Drivers/DwEmmcDxe/DwEmmcDxe.c @@ -560,6 +560,10 @@ DwEmmcSetIos ( EFI_STATUS Status = EFI_SUCCESS;
UINT32 Data;
+ if ((PcdGet32 (PcdDwEmmcDxeMaxClockFreqInHz) != 0) &&
+ (BusClockFreq > PcdGet32 (PcdDwEmmcDxeMaxClockFreqInHz))) {
+ return EFI_UNSUPPORTED;
+ }
if (TimingMode != EMMCBACKWARD) {
Data = MmioRead32 (DWEMMC_UHSREG);
switch (TimingMode) {
|