diff --git a/arch/arm/src/stm32f7/Kconfig b/arch/arm/src/stm32f7/Kconfig
index e727aef24a..f5815f4d91 100644
--- a/arch/arm/src/stm32f7/Kconfig
+++ b/arch/arm/src/stm32f7/Kconfig
@@ -1884,8 +1884,7 @@ config STM32F7_DTCM_PROCFS
 config STM32F7_DMACAPABLE
 	bool "Workaround non-DMA capable memory"
 	depends on ARCH_DMA
-	default y if !STM32F7_CCMEXCLUDE
-	default n if STM32F7_CCMEXCLUDE
+	default n
 	---help---
 		This option enables the DMA interface stm32_dmacapable that can be
 		used to check if it is possible to do DMA from the selected address.
diff --git a/arch/arm/src/stm32f7/stm32_ethernet.c b/arch/arm/src/stm32f7/stm32_ethernet.c
index 480c395c79..961b21bf26 100644
--- a/arch/arm/src/stm32f7/stm32_ethernet.c
+++ b/arch/arm/src/stm32f7/stm32_ethernet.c
@@ -635,8 +635,8 @@ struct stm32_ethmac_s
  * 1. Be a multiple of the D-Cache line size.  This requirement is assured
  *    by the definition of RXDMA buffer size above.
  * 2. Be aligned a D-Cache line boundaries, and
- * 3. Be positioned in DMA-able memory (*NOT* DTCM memory).  This must
- *    be managed by logic in the linker script file.
+ * 3. Be positioned in DMA-able memory.  This must be managed by logic
+ *    in the linker script file.
  *
  * These DMA buffers are defined sequentially here to best assure optimal
  * packing of the buffers.
diff --git a/arch/arm/src/stm32f7/stm32_serial.c b/arch/arm/src/stm32f7/stm32_serial.c
index eb554c314e..18f56600df 100644
--- a/arch/arm/src/stm32f7/stm32_serial.c
+++ b/arch/arm/src/stm32f7/stm32_serial.c
@@ -383,8 +383,7 @@ static const struct uart_ops_s g_uart_dma_ops =
  * 1. Be a multiple of the D-Cache line size.  This requirement is assured
  *    by the definition of RXDMA buffer size above.
  * 2. Be aligned a D-Cache line boundaries, and
- * 3. Be positioned in DMA-able memory (*NOT* DTCM memory).  This must
- *    be managed by logic in the linker script file.
+ * 3. Be positioned in DMA-able memory.
  *
  * These DMA buffers are defined sequentially here to best assure optimal
  * packing of the buffers.