diff --git a/book/src/support_matrix.html b/book/src/support_matrix.html
index 760e32242..1ee98c7ca 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="9">Functionality</th>
+      <th colspan="10">Functionality</th>
     </tr>
     <tr>
       <th></th>
@@ -18,6 +18,7 @@
       <th>Wi-Fi</th>
       <th>Ethernet over USB</th>
       <th>Hardware Random Number Generator</th>
+      <th>Persistent Storage</th>
     </tr>
   </thead>
   <tbody>
@@ -33,6 +34,7 @@
       <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>
+      <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
     </tr>
     <tr>
       <td>nRF52xxx</td>
@@ -46,6 +48,7 @@
       <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>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>nRF53xx</td>
@@ -59,6 +62,7 @@
       <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>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>RP2040</td>
@@ -72,6 +76,7 @@
       <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>
+      <td class="support-cell" title="supported">✅</td>
     </tr>
     <tr>
       <td>RP2040</td>
@@ -85,6 +90,7 @@
       <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>
@@ -98,6 +104,7 @@
       <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="available in hardware, but not currently supported by RIOT-rs">❌</td>
     </tr>
     <tr>
       <td>STM32F755ZITX</td>
@@ -111,6 +118,7 @@
       <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>
+      <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
     </tr>
     <tr>
       <td>STM32W55RGVX</td>
@@ -124,6 +132,7 @@
       <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>
+      <td class="support-cell" title="available in hardware, but not currently supported by RIOT-rs">❌</td>
     </tr>
   </tbody>
 </table>
diff --git a/doc/support_matrix.yml b/doc/support_matrix.yml
index 124801b3c..a47ab10a0 100644
--- a/doc/support_matrix.yml
+++ b/doc/support_matrix.yml
@@ -44,6 +44,9 @@ functionalities:
   - name: hwrng
     title: Hardware Random Number Generator
     description:
+  - name: storage
+    title: Persistent Storage
+    description:
 
 # Encodes support status for each chip.
 chips:
@@ -56,6 +59,7 @@ chips:
       i2c_controller: supported
       spi_main: supported
       logging: supported
+      storage: supported
       wifi: not_available
 
   nrf53xx:
@@ -67,6 +71,7 @@ chips:
       i2c_controller: supported
       spi_main: supported
       logging: supported
+      storage: supported
       wifi: not_available
 
   rp2040:
@@ -78,6 +83,7 @@ chips:
       i2c_controller: supported
       spi_main: supported
       logging: supported
+      storage: supported
       wifi: not_available
 
   esp32-c6:
@@ -89,6 +95,7 @@ chips:
       i2c_controller: supported
       spi_main: supported
       logging: supported
+      storage: not_currently_supported
       wifi: not_available
 
   stm32f401retx:
@@ -100,6 +107,7 @@ chips:
       i2c_controller: not_currently_supported
       spi_main: not_currently_supported
       logging: supported
+      storage: not_currently_supported
       wifi: not_available
 
   stm32h755zitx:
@@ -111,6 +119,7 @@ chips:
       i2c_controller: supported
       spi_main: supported
       logging: supported
+      storage: not_currently_supported
       wifi: not_available
 
   stm32wb55rgvx:
@@ -122,6 +131,7 @@ chips:
       i2c_controller: supported
       spi_main: supported
       logging: supported
+      storage: not_currently_supported
       wifi: not_available
 
 # Encodes support status for each board.