Hardware
/
litedram
mirror of https://github.com/enjoy-digital/litedram.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

frontend/avalon: Remove downconvert specific logic (no longer required with LiteDRAMNativePortConverter improvement).

This commit is contained in:
Florent Kermarrec 2023-05-31 16:54:56 +02:00
parent 045c8da62e
commit 4a8b102c7e
1 changed files with 2 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
litedram/frontend/avalon.py
View File

@ -96,8 +96,8 @@ class LiteDRAMAvalonMM2Native(LiteXModule):
port.cmd.we.eq(avalon.write),
port.cmd.valid.eq(1),
port.cmd.last.eq(1),
If((downconvert == True) | port.cmd.ready,
avalon.waitrequest.eq(downconvert == True),
If(port.cmd.ready,
avalon.waitrequest.eq(0),
If(port.cmd.we,
NextState("SINGLE_WRITE")
).Else(
@ -112,28 +112,11 @@ class LiteDRAMAvalonMM2Native(LiteXModule):
avalon.waitrequest.eq(1),
port.rdata.ready.eq(0),
If((downconvert == True),
port.cmd.addr.eq(address),
port.cmd.we.eq(1),
port.cmd.valid.eq(1),
If(port.cmd.ready,
NextValue(cmd_ready_seen, 1)
),
If(cmd_ready_seen,
port.cmd.valid.eq(0),
port.cmd.we.eq(0)
),
),
port.wdata.data.eq(writedata),
port.wdata.valid.eq(1),
port.wdata.we.eq(byteenable),
If(port.wdata.ready,
If((downconvert == True),
avalon.waitrequest.eq(0)
),
NextState("START")
)
)
@ -142,29 +125,10 @@ class LiteDRAMAvalonMM2Native(LiteXModule):
avalon.waitrequest.eq(1),
port.rdata.ready.eq(1),
If((downconvert == True),
port.cmd.addr.eq(address),
port.cmd.we.eq(0),
port.cmd.valid.eq(1),
If(port.cmd.ready,
NextValue(cmd_ready_seen, 1)
),
If(cmd_ready_seen,
port.cmd.valid.eq(0),
port.cmd.we.eq(0)
),
),
If(port.rdata.valid,
avalon.readdata.eq(port.rdata.data),
avalon.readdatavalid.eq(1),
If((downconvert == True),
port.cmd.valid.eq(0),
avalon.waitrequest.eq(0),
),
NextState("START")
)
)