EmbeddedPkg: MmcDxe: add SPEC_VERS field in CSD structure

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
diff --git a/EmbeddedPkg/Universal/MmcDxe/Mmc.h b/EmbeddedPkg/Universal/MmcDxe/Mmc.h
index 3e11666..112bc47 100644
--- a/EmbeddedPkg/Universal/MmcDxe/Mmc.h
+++ b/EmbeddedPkg/Universal/MmcDxe/Mmc.h
@@ -128,7 +128,8 @@
   UINT8   NSAC                ;  // Data read access-time 2 in CLK cycles (NSAC*100) [111:104]

   UINT8   TAAC                ;  // Data read access-time 1 [119:112]

 

-  UINT8   RESERVED_5:         6; // Reserved [125:120]

+  UINT8   RESERVED_5:         2; // Reserved [121:120]

+  UINT8   SPEC_VERS:          4; // System specification version [125:122]

   UINT8   CSD_STRUCTURE:      2; // CSD structure [127:126]

 } CSD;