diff --git a/book/src/support_matrix.html b/book/src/support_matrix.html
index f04c8f108..2b2cbf2b9 100644
--- a/book/src/support_matrix.html
+++ b/book/src/support_matrix.html
@@ -4,7 +4,7 @@
     <tr>
       <th>Chip</th>
       <th>Testing Board</th>
-      <th colspan="6">Functionality</th>
+      <th colspan="7">Functionality</th>
     </tr>
     <tr>
       <th></th>
@@ -15,6 +15,7 @@
       <th>User USB</th>
       <th>Wi-Fi</th>
       <th>Ethernet over USB</th>
+      <th>Hardware Random Number Generator</th>
     </tr>
   </thead>
   <tbody>
@@ -27,6 +28,7 @@
       <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
       <td class="support-cell" title="supported with some caveats">☑️</td>
       <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
+      <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
     </tr>
     <tr>
       <td>nRF52xxx</td>
@@ -37,6 +39,7 @@
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="supported">✅</td>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>nRF53xx</td>
@@ -47,6 +50,7 @@
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="supported">✅</td>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>RP2040</td>
@@ -57,6 +61,7 @@
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="supported">✅</td>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>RP2040</td>
@@ -67,6 +72,7 @@
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="supported">✅</td>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>STM32F401RETX</td>
@@ -77,6 +83,7 @@
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
+      <td class="support-cell" title="not available on this piece of hardware">–</td>
     </tr>
     <tr>
       <td>STM32F755ZITX</td>
@@ -87,6 +94,7 @@
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>STM32W55RGVX</td>
@@ -97,6 +105,7 @@
       <td class="support-cell" title="supported">✅</td>
       <td class="support-cell" title="not available on this piece of hardware">–</td>
       <td class="support-cell" title="supported">✅</td>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
   </tbody>
 </table>
diff --git a/doc/support_matrix.yml b/doc/support_matrix.yml
index 11fa0f101..c6acc641e 100644
--- a/doc/support_matrix.yml
+++ b/doc/support_matrix.yml
@@ -35,6 +35,9 @@ functionalities:
   - name: ethernet_over_usb
     title: Ethernet over USB
     description:
+  - name: hwrng
+    title: Hardware Random Number Generator
+    description:
 
 # Encodes support status for each chip.
 chips:
@@ -43,6 +46,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: supported
       logging: supported
       wifi: not_available
 
@@ -51,6 +55,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: supported
       logging: supported
       wifi: not_available
 
@@ -59,6 +64,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: supported
       logging: supported
       wifi: not_available
 
@@ -67,6 +73,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: not_currently_supported
       logging: supported
       wifi: not_available
 
@@ -75,6 +82,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: not_available
       logging: supported
       wifi: not_available
 
@@ -83,6 +91,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: supported
       logging: supported
       wifi: not_available
 
@@ -91,6 +100,7 @@ chips:
     support:
       gpio: supported
       debug_output: supported
+      hwrng: supported
       logging: supported
       wifi: not_available