From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 22 Mar 2021 12:51:02 +0000 (+0000)
Subject: sort out naming of IOpads for bi-directional pins
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=cba78e3d60e6f67ce99adbdcbf6a09f9728dc849;p=libresoc-litex.git

sort out naming of IOpads for bi-directional pins
---

diff --git a/libresoc/core.py b/libresoc/core.py
index aa178c3..db16aef 100644
--- a/libresoc/core.py
+++ b/libresoc/core.py
@@ -48,6 +48,9 @@ def make_pad(res, dirn, name, suffix, cpup, iop):
     res[cname], res[pname] = cpup, iop
 
 def get_field(rec, name):
+    for f in rec.layout:
+        f = f[0]
+        print ("get_field", f, name)
     for f in rec.layout:
         f = f[0]
         if f.endswith(name):
@@ -64,6 +67,7 @@ def make_jtag_ioconn(res, pin, cpupads, iopads):
     else:
         cpu = cpupads[fn]
         io = iopads[fn]
+    print ("make_jtag_ioconn", scan_idx)
     print ("cpupads", cpupads)
     print ("iopads", iopads)
     print ("pin", fn, pin, iotype, pin_name)
@@ -107,18 +111,26 @@ def make_jtag_ioconn(res, pin, cpupads, iopads):
         if fn == 'gpio': # sigh decode GPIO special-case
             idx = int(pin[1:])
             oe_idx = idx
-        elif fn == 'sdr': # sigh
+            pfx = ''
+        elif fn.startswith('sd') and pin.startswith('data'):
+            idx = int(pin[-1])
+            oe_idx = 0
+            pfx = pin[:-1]+"_"
+        elif fn == 'sdr':
             idx = int(pin.split('_')[-1])
             oe_idx = 0
+            pfx = pin.split('_')[0]+"_"
         else:
             idx = 0
             oe_idx = 0
+            pfx = pin+"_"
         print ("gpio tri", fn, pin, iotype, pin_name, scan_idx, idx)
-        cpup, iop = get_field(cpu, "i")[idx], get_field(io, "i")[idx]
-        make_pad(res, True, name, "i", cpup, iop)
-        cpup, iop = get_field(cpu, "o")[idx], get_field(io, "o")[idx]
+        cpup, iop = get_field(cpu, pfx+"i")[idx], get_field(io, pfx+"i")[idx]
+        make_pad(res, False, name, "i", cpup, iop)
+        cpup, iop = get_field(cpu, pfx+"o")[idx], get_field(io, pfx+"o")[idx]
         make_pad(res, True, name, "o", cpup, iop)
-        cpup, iop = get_field(cpu, "oe")[oe_idx], get_field(io, "oe")[oe_idx]
+        cpup, iop = get_field(cpu, pfx+"oe")[oe_idx], \
+                    get_field(io, pfx+"oe")[oe_idx]
         make_pad(res, True, name, "oe", cpup, iop)
 
     if iotype in (IOType.In, IOType.InTriOut):