update pi_dcbz function

diff --git a/src/soc/config/test/test_pi2ls.py b/src/soc/config/test/test_pi2ls.py
index 2c4b89cc41a429c1429959a3ba8d2881d8a0d1bf..4bdd11844c7d98e0f267b6453884125bec6c2482 100644 (file)
--- a/src/soc/config/test/test_pi2ls.py
+++ b/src/soc/config/test/test_pi2ls.py
@@ -67,14 +67,13 @@ def pi_st(port1, addr, data, datalen, msr_pr=0):
     yield from wait_busy(port1, True)    # wait while busy
 
 # copy of pi_st
-def pi_dcbz(port1, addr, data, datalen, msr_pr=0):
+def pi_dcbz(port1, addr, msr_pr=0):
 
     # have to wait until not busy
     yield from wait_busy(port1, no=False,debug="busy")    # wait until not busy
 
     # set up a ST on the port.  address first:
     yield port1.is_st_i.eq(1)  # indicate ST
-    yield port1.data_len.eq(datalen)  # ST length (1/2/4/8)
     yield port1.msr_pr.eq(msr_pr)  # MSR PR bit (1==>virt, 0==>real)
 
     yield port1.is_dcbz.eq(1) # set dcbz
@@ -82,14 +81,18 @@ def pi_dcbz(port1, addr, data, datalen, msr_pr=0):
     yield port1.addr.data.eq(addr)  # set address
     yield port1.addr.ok.eq(1)  # set ok
     yield Settle()
-    yield from wait_addr(port1,debug="addr")             # wait until addr ok
-    # yield # not needed, just for checking
-    # yield # not needed, just for checking
-    # assert "ST" for one cycle (required by the API)
-    yield port1.st.data.eq(data)
+
+    # guess: this is not needed
+    # yield from wait_addr(port1,debug="addr")             # wait until addr ok
+
+    # just write some dummy data -- remove
+    print("dummy write begin")
+    yield port1.st.data.eq(0)
     yield port1.st.ok.eq(1)
     yield
     yield port1.st.ok.eq(0)
+    print("dummy write end")
+
     yield from wait_busy(port1, no=True, debug="not_busy")    # wait while busy
 
     # can go straight to reset.