diff options
Diffstat (limited to 'Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c')
| -rw-r--r-- | Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c b/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c index b60607d058..b9394aa19f 100644 --- a/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c +++ b/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.c @@ -174,6 +174,23 @@ SmmuEnableCoherentDma ( SMMU_SCR0_SHCFG_INNER | SMMU_SCR0_MTCFG | SMMU_SCR0_MEMATTR_INNER_OUTER_WB);
}
+#define MMIO_TIMER_CNTFRQ_OFFSET 0x10
+
+STATIC
+VOID
+SetMmioTimerFrequency (
+ VOID
+ )
+{
+ //
+ // Initialize the CNTFRQ field of the first non-secure MMIO timer frame.
+ // This field should be a read-only alias of the global frequency register
+ // but in reality, it is a separate field that needs to be set explicitly.
+ //
+ MmioWrite32 (SYNQUACER_MMIO_TIMER_CNT_BASE0 + MMIO_TIMER_CNTFRQ_OFFSET,
+ ArmGenericTimerGetTimerFreq ());
+}
+
STATIC
EFI_STATUS
InstallHiiPages (
@@ -297,6 +314,7 @@ PlatformDxeEntryPoint ( ASSERT_EFI_ERROR (Status);
SmmuEnableCoherentDma ();
+ SetMmioTimerFrequency ();
Status = RegisterPcieNotifier ();
ASSERT_EFI_ERROR (Status);
|