diff --git a/drivers/dma/dma_silabs_siwx91x.c b/drivers/dma/dma_silabs_siwx91x.c
index ba4f3c5dfb5..0fb61f010ff 100644
--- a/drivers/dma/dma_silabs_siwx91x.c
+++ b/drivers/dma/dma_silabs_siwx91x.c
@@ -649,6 +649,10 @@ static DEVICE_API(dma, siwx91x_dma_api) = {
 	static UDMA_Channel_Info dma_channel_info_##inst[DT_INST_PROP(inst, dma_channels)];        \
 	SYS_MEM_BLOCKS_DEFINE_STATIC(desc_pool_##inst, sizeof(RSI_UDMA_DESC_T),                    \
 				     CONFIG_DMA_SILABS_SIWX91X_SG_BUFFER_COUNT, 4);                \
+	COND_CODE_1(DT_INST_NODE_HAS_PROP(inst, silabs_sram_region),                               \
+		    (),                                                                            \
+		    (static __aligned(512) RSI_UDMA_DESC_T                                         \
+			     siwx91x_dma_chan_desc##inst[DT_INST_PROP(inst, dma_channels) * 2];))  \
 	static struct dma_siwx91x_channel_info                                                     \
 		zephyr_channel_info_##inst[DT_INST_PROP(inst, dma_channels)];                      \
 	static struct dma_siwx91x_data dma_data_##inst = {                                         \
@@ -670,7 +674,9 @@ static DEVICE_API(dma, siwx91x_dma_api) = {
 		.clock_subsys = (clock_control_subsys_t)DT_INST_PHA(inst, clocks, clkid),          \
 		.reg = (UDMA0_Type *)DT_INST_REG_ADDR(inst),                                       \
 		.irq_number = DT_INST_PROP_BY_IDX(inst, interrupts, 0),                            \
-		.sram_desc_addr = DT_REG_ADDR(DT_INST_PHANDLE(inst, silabs_sram_region)),          \
+		.sram_desc_addr = COND_CODE_1(DT_INST_NODE_HAS_PROP(inst, silabs_sram_region),     \
+					      ((RSI_UDMA_DESC_T *)DT_REG_ADDR(DT_INST_PHANDLE(inst, silabs_sram_region))), \
+					      (siwx91x_dma_chan_desc##inst)),                      \
 		.irq_configure = siwx91x_dma_irq_configure_##inst,                                 \
 	};                                                                                         \
 	DEVICE_DT_INST_DEFINE(inst, &siwx91x_dma_init, NULL, &dma_data_##inst, &dma_cfg_##inst,    \
diff --git a/dts/arm/silabs/siwg917.dtsi b/dts/arm/silabs/siwg917.dtsi
index de037707c3c..5d7de0c83ce 100644
--- a/dts/arm/silabs/siwg917.dtsi
+++ b/dts/arm/silabs/siwg917.dtsi
@@ -32,13 +32,6 @@
 		reg = <0x00000000 DT_SIZE_K(191)>;
 	};
 
-	sram_dma0: memory-dma@2fc00 {
-		compatible = "zephyr,memory-region", "mmio-sram";
-		reg = <0x0002fc00 DT_SIZE_K(1)>;
-		zephyr,memory-region = "dma0";
-		zephyr,memory-attr = <DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE)>;
-	};
-
 	sram_dma1: memory-dma@24061c00 {
 		compatible = "zephyr,memory-region", "mmio-sram";
 		reg = <0x24061c00 DT_SIZE_K(1)>;
@@ -259,7 +252,6 @@
 			interrupts = <33 0>;
 			interrupt-names = "dma0";
 			clocks = <&clock0 SIWX91X_CLK_DMA0>;
-			silabs,sram-region = <&sram_dma0>;
 			#dma-cells = < 1>;
 			dma-channels = <32>;
 			status = "disabled";
diff --git a/dts/bindings/dma/silabs,siwx91x-dma.yaml b/dts/bindings/dma/silabs,siwx91x-dma.yaml
index bdc0e3e0a3e..c6ff3b01da3 100644
--- a/dts/bindings/dma/silabs,siwx91x-dma.yaml
+++ b/dts/bindings/dma/silabs,siwx91x-dma.yaml
@@ -10,10 +10,11 @@ properties:
 
   silabs,sram-region:
     type: phandle
-    required: true
     description: |
-        SRAM Address for UDMA Descriptor Storage. This address must match to the
-        location used by the hardware.
+        SRAM Address for UDMA Descriptor Storage. Some instance require this
+        buffer to be placed in a specific area. If the instance doesn't have
+        this requirement, this attribute is not required and the memory will
+        will be automatically allocated.
 
   "#dma-cells":
     const: 1