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xilinx mig: put a buffer infront of the controller (#13)

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This makes placement of the L2 and DDR controller easier.
This commit is contained in:
Wesley W. Terpstra 2017-05-11 11:50:07 -07:00 committed by GitHub
parent 178ac84b59
commit b3f9607512
1 changed files with 4 additions and 2 deletions
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6
src/main/scala/devices/xilinxvc707mig/XilinxVC707MIG.scala
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@ -36,10 +36,12 @@ class XilinxVC707MIG(implicit p: Parameters) extends LazyModule with HasXilinxVC
val indexer = LazyModule(new AXI4IdIndexer(idBits = 4)) val indexer = LazyModule(new AXI4IdIndexer(idBits = 4))
val deint = LazyModule(new AXI4Deinterleaver(p(coreplex.CacheBlockBytes))) val deint = LazyModule(new AXI4Deinterleaver(p(coreplex.CacheBlockBytes)))
val yank = LazyModule(new AXI4UserYanker) val yank = LazyModule(new AXI4UserYanker)
val buffer = LazyModule(new AXI4Buffer)
xing.node := node xing.node := node
val monitor = (toaxi4.node := xing.node) val monitor = (toaxi4.node := xing.node)
axi4 := yank.node axi4 := buffer.node
buffer.node := yank.node
yank.node := deint.node yank.node := deint.node
deint.node := indexer.node deint.node := indexer.node
indexer.node := toaxi4.node indexer.node := toaxi4.node
@ -85,7 +87,7 @@ class XilinxVC707MIG(implicit p: Parameters) extends LazyModule with HasXilinxVC
xing.module.io.in_reset := reset xing.module.io.in_reset := reset
xing.module.io.out_clock := blackbox.io.ui_clk xing.module.io.out_clock := blackbox.io.ui_clk
xing.module.io.out_reset := blackbox.io.ui_clk_sync_rst xing.module.io.out_reset := blackbox.io.ui_clk_sync_rst
(Seq(toaxi4, indexer, deint, yank) ++ monitor) foreach { lm => (Seq(toaxi4, indexer, deint, yank, buffer) ++ monitor) foreach { lm =>
lm.module.clock := blackbox.io.ui_clk lm.module.clock := blackbox.io.ui_clk
lm.module.reset := blackbox.io.ui_clk_sync_rst lm.module.reset := blackbox.io.ui_clk_sync_rst
} }