diff --git a/arch/arm/src/samv7/Make.defs b/arch/arm/src/samv7/Make.defs
index 222e2466b3f..6558a04db69 100644
--- a/arch/arm/src/samv7/Make.defs
+++ b/arch/arm/src/samv7/Make.defs
@@ -31,7 +31,7 @@ include armv7-m/Make.defs
 
 CHIP_CSRCS  = sam_start.c sam_clockconfig.c sam_irq.c sam_allocateheap.c
 CHIP_CSRCS += sam_lowputc.c sam_serial.c sam_gpio.c sam_pck.c sam_uid.c
-CHIP_CSRCS += sam_systemreset.c
+CHIP_CSRCS += sam_systemreset.c sam_chipid.c
 
 # Configuration-dependent SAMV7 files
 
diff --git a/arch/arm/src/samv7/sam_chipid.c b/arch/arm/src/samv7/sam_chipid.c
new file mode 100644
index 00000000000..faae088e4e7
--- /dev/null
+++ b/arch/arm/src/samv7/sam_chipid.c
@@ -0,0 +1,62 @@
+/****************************************************************************
+ * arch/arm/src/samv7/sam_chipid.c
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include "sam_chipid.h"
+#include "hardware/sam_chipid.h"
+#include "arm_internal.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+bool sam_has_revb_periphs(void)
+{
+#ifdef CONFIG_ARCH_CHIP_PIC32CZCA70
+  return true;
+#else
+  /* If not built for PIC32CZ, decide which chip is being used */
+
+  uint32_t regval;
+  uint32_t id_arch;
+  uint32_t id_version;
+
+  regval = getreg32(SAM_CHIPID_CIDR);
+  id_arch = (regval & CHIPID_CIDR_ARCH_MASK) >> CHIPID_CIDR_ARCH_SHIFT;
+  id_version = (regval & CHIPID_CIDR_VERSION_MASK)
+                >> CHIPID_CIDR_VERSION_SHIFT;
+
+  /* SAMV7s are identified by 0x10-0x13, therefore
+   * anything else should be PIC32
+   */
+
+  if ((id_arch & ~3) != 0x10)
+    {
+      return true;
+    }
+
+  return id_version != 0;
+#endif /* CONFIG_ARCH_CHIP_PIC32CZCA70 */
+}
diff --git a/arch/arm/src/samv7/sam_chipid.h b/arch/arm/src/samv7/sam_chipid.h
new file mode 100644
index 00000000000..6ca9a61416a
--- /dev/null
+++ b/arch/arm/src/samv7/sam_chipid.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+ * arch/arm/src/samv7/sam_chipid.h
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_SAMV7_SAM_CHIPID_H
+#define __ARCH_ARM_SRC_SAMV7_SAM_CHIPID_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdbool.h>
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: sam_has_revb_periphs
+ *
+ * Description:
+ *   Returns true if revA peripherals are used, false otherwise.
+ *.  Note: PIC32CZ CA70 are always revB.
+ *
+ ****************************************************************************/
+
+bool sam_has_revb_periphs(void);
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ARCH_ARM_SRC_SAMV7_SAM_CHIPID_H */