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-rw-r--r--hw/xilinx_axienet.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/xilinx_axienet.c b/hw/xilinx_axienet.c
index baae02bd66..f2e3bf1274 100644
--- a/hw/xilinx_axienet.c
+++ b/hw/xilinx_axienet.c
@@ -591,6 +591,10 @@ static void enet_write(void *opaque, hwaddr addr,
             s->maddr[s->fmi & 3][addr & 1] = value;
             break;
 
+        case R_IS:
+            s->regs[addr] &= ~value;
+            break;
+
         case 0x8000 ... 0x83ff:
             s->ext_mtable[addr - 0x8000] = value;
             break;