Follow chip team suggestion, HCCS(Huawei Cache-Coherent System)
may be unstable while speed is 3.0G, so use 2.6G to avoid some
unstable stress issue.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ming Huang <ming.hu...@linaro.org>
---
 Platform/Hisilicon/D06/Library/OemMiscLibD06/OemMiscLibD06.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Platform/Hisilicon/D06/Library/OemMiscLibD06/OemMiscLibD06.c 
b/Platform/Hisilicon/D06/Library/OemMiscLibD06/OemMiscLibD06.c
index c8f71ecf890a..758157525f40 100644
--- a/Platform/Hisilicon/D06/Library/OemMiscLibD06/OemMiscLibD06.c
+++ b/Platform/Hisilicon/D06/Library/OemMiscLibD06/OemMiscLibD06.c
@@ -222,3 +222,11 @@ UINTN OemGetCpuFreq (UINT8 Socket)
   }
 }
 
+UINTN
+OemGetHccsFreq (
+  VOID
+  )
+{
+  return HCCS_PLL_VALUE_2600;
+}
+
-- 
2.9.5

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