add mitll6

mitll6.json

@@ -0,0 +1,22 @@
+{
+    "target": "kasli",
+    "min_artiq_version": "6.0",
+    "variant": "mitll6",
+    "hw_rev": "v2.0",
+    "base": "standalone",
+    "core_addr": "192.168.1.75",
+    "peripherals": [
+        {
+            "type": "dio",
+            "ports": [0],
+            "bank_direction_low": "input",
+            "bank_direction_high": "output"
+        },
+        {
+            "type": "dio",
+            "ports": [1],
+            "bank_direction_low": "output",
+            "bank_direction_high": "output"
+        }
+    ]
+}