diff --git a/Documentation/platforms/arm/stm32h5/index.rst b/Documentation/platforms/arm/stm32h5/index.rst
index 3375b1fae3a..4432d1a0bcf 100644
--- a/Documentation/platforms/arm/stm32h5/index.rst
+++ b/Documentation/platforms/arm/stm32h5/index.rst
@@ -39,7 +39,7 @@ FDCAN       Yes
 GPDMA       Yes
 GPIO        Yes
 I2C         Yes
-ICACHE      Yes
+ICACHE      Yes      Uses the MPU to keep OTP, RO and EDATA flash uncached.
 RCC         Yes
 USART       Yes
 LPUART      Yes