ice40: optionally allow inferring spram.

kivikakk · Jun 6, 2024 · 08de64a · 08de64a
1 parent c1a1ed2
commit 08de64a
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/src/main/scala/ee/hrzn/chryse/platform/ice40/Ice40Platform.scala b/src/main/scala/ee/hrzn/chryse/platform/ice40/Ice40Platform.scala
@@ -28,6 +28,7 @@ trait Ice40Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
   type TopPlatform[Top <: Module] = Ice40Top[Top]
   type BuildResult                = String
 
+  val ice40Args: Seq[String] = Seq()
   val ice40Variant: Ice40Variant
   val ice40Package: String
 
@@ -36,7 +37,10 @@ trait Ice40Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
     new Ice40Top(this, genTop)
   }
 
-  def yosysSynthCommand(top: String) = s"synth_ice40 -top $top"
+  def yosysSynthCommand(top: String) =
+    s"synth_ice40 -top $top" + (if (ice40Args.nonEmpty)
+                                  s" ${ice40Args.mkString(" ")}"
+                                else "")
 
   def build(
       chryse: ChryseApp,

diff --git a/src/main/scala/ee/hrzn/chryse/platform/ice40/IceBreakerPlatform.scala b/src/main/scala/ee/hrzn/chryse/platform/ice40/IceBreakerPlatform.scala
@@ -31,11 +31,13 @@ import ee.hrzn.chryse.platform.resource.Uart
 
 case class IceBreakerPlatform(
     ubtnReset: Boolean = false,
+    inferSpram: Boolean = false,
 ) extends PlatformBoard[IceBreakerPlatformResources]
     with Ice40Platform {
   val id      = "icebreaker"
   val clockHz = 12_000_000
 
+  override val ice40Args    = if (inferSpram) Seq("-spram") else Seq()
   override val ice40Variant = UP5K
   val ice40Package          = "sg48"