frontend/crossbar: fix sign on adr_shift

2016-06-20 21:40:32 +02:00 · 2016-06-20 21:40:32 +02:00 · 2ed7212701
parent ad8ca86e13
commit 2ed7212701
1 changed files with 2 additions and 2 deletions
--- a/litedram/frontend/crossbar.py
+++ b/litedram/frontend/crossbar.py
@ -45,9 +45,9 @@ class LiteDRAMCrossbar(Module):
        # data width convertion
        if dw != self.dw:
            if dw > self.dw:
-                adr_shift = log2_int(dw//self.dw)
+                adr_shift = -log2_int(dw//self.dw)
            else:
-                adr_shift = -log2_int(self.dw//dw)
+                adr_shift = log2_int(self.dw//dw)
            new_port = LiteDRAMPort(mode, port.aw + adr_shift, dw, cd=cd)
            self.submodules += ClockDomainsRenamer(cd)(LiteDRAMPortConverter(new_port, port))
            port = new_port