[GitHub] [tvm] erwango commented on a diff in pull request #12741: [microtvm][Zephyr] Add project overlay to overwrite device tree configs

[GitBox <gi...@apache.org>]

erwango commented on code in PR #12741:
URL: https://github.com/apache/tvm/pull/12741#discussion_r968068808


##########
apps/microtvm/zephyr/template_project/app-overlay/nucleo_l4r5zi.overlay:
##########
@@ -0,0 +1,23 @@
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+&rcc {
+	clock-frequency = <DT_FREQ_M(120)>;
+};

Review Comment:
   That is not correct.
   You should update the PLL configuration accordingly:
   ```
   &pll {
   	div-m = <2>;
   	mul-n = <30>;
   	div-p = <7>;
   	div-q = <2>;
   	div-r = <2>;
   	clocks = <&clk_hsi>;
   	status = "okay";
   };
   ```
   Note that the impacts of effects on bus configurations have to be tested.



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