--- a/src/Stack/Setup.hs
+++ b/src/Stack/Setup.hs
@@ -95,5 +95,6 @@ import              System.IO.Error (isPermissionError)
 import              System.FilePath (searchPathSeparator)
 import qualified    System.FilePath as FP
 import              System.Permissions (setFileExecutable)
+import              System.Endian (getSystemEndianness, Endianness (..))
 import              System.Uname (getRelease)
 import              Data.List.Split (splitOn)
@@ -1264,4 +1265,9 @@ getOSKey platform =
         Platform X86_64                Cabal.Windows -> return "windows64"
         Platform Arm                   Cabal.Linux   -> return "linux-armv7"
         Platform AArch64               Cabal.Linux   -> return "linux-aarch64"
+        Platform PPC                   Cabal.Linux   -> return "linux-powerpc"
+        Platform PPC64                 Cabal.Linux   ->
+            case getSystemEndianness of
+                LittleEndian -> return "linux-powerpc64le"
+                BigEndian    -> return "linux-powerpc64"
         Platform arch os -> throwM $ UnsupportedSetupCombo os arch

 downloadFromInfo
--- a/stack.cabal
+++ b/stack.cabal
@@ -235,6 +235,7 @@ library
       , conduit
       , conduit-extra
       , containers
+      , cpu >=0.1.2
       , cryptonite
       , cryptonite-conduit
       , deepseq