diff --git a/src/gallium/drivers/ethosu/ethosu_cmd.c b/src/gallium/drivers/ethosu/ethosu_cmd.c
index 18d6c5e345b..7ca89e884c9 100644
--- a/src/gallium/drivers/ethosu/ethosu_cmd.c
+++ b/src/gallium/drivers/ethosu/ethosu_cmd.c
@@ -539,16 +539,42 @@ emit_pooling(struct ethosu_subgraph *subgraph, struct ethosu_operation *operatio
       emit_acc_format(subgraph, operation);
 }
 
+static void
+emit_ifm2_precision(struct ethosu_subgraph *subgraph,
+                    struct ethosu_operation *operation,
+                    bool has_scalar)
+{
+   struct ethosu_tensor *tensor = ethosu_find_tensor(subgraph, operation->ifm2.tensor_idx);
+   unsigned prec = 0;
+
+   prec |= NPU_SET_IFM2_PRECISION_ACTIVATION_TYPE(operation->ifm2.is_signed);
+   prec |= NPU_SET_IFM2_PRECISION_ACTIVATION_PRECISION(operation->ifm2.precision);
+
+   if (tensor->layout == ETHOSU_LAYOUT_NHCWB16)
+      prec |= NPU_SET_IFM2_PRECISION_ACTIVATION_FORMAT(1);
+
+   /* Vela: scalar → NONE(3), non-scalar → TILE2X2(0) */
+   if (has_scalar)
+      prec |= NPU_SET_IFM2_PRECISION_ACTIVATION_STORAGE(3);
+
+   EMIT0(NPU_SET_IFM2_PRECISION, prec);
+}
+
 static void
 emit_ifm2(struct ethosu_subgraph *subgraph, struct ethosu_operation *operation, bool has_scalar)
 {
-   if (!has_scalar) {
+   if (has_scalar) {
+      if (ethosu_is_u65(ethosu_screen(subgraph->base.context->screen)))
+         EMIT0(NPU_SET_IFM2_SCALAR, operation->ifm2.scalar);
+      else {
+         emit_ifm2_precision(subgraph, operation, true);
+         EMIT1(NPU_SET_OP_SCALAR, 0, operation->ifm2.scalar);
+      }
+   } else {
       EMIT0(NPU_SET_IFM2_REGION, IO_REGION);
       emit_addresses(subgraph, &operation->ifm2, NPU_SET_IFM2_BASE0, NPU_SET_IFM2_BASE1, NPU_SET_IFM2_BASE2, NPU_SET_IFM2_BASE3);
       emit_tiles(subgraph, &operation->ifm2, NPU_SET_IFM2_HEIGHT0_M1, NPU_SET_IFM2_HEIGHT1_M1, NPU_SET_IFM2_WIDTH0_M1);
       emit_strides(subgraph, &operation->ifm2, NPU_SET_IFM2_STRIDE_C, NPU_SET_IFM2_STRIDE_Y, NPU_SET_IFM2_STRIDE_X);
-   } else {
-      EMIT0(NPU_SET_IFM2_SCALAR, operation->ifm2.scalar);
    }
    EMIT0(NPU_SET_IFM2_ZERO_POINT, operation->ifm2.zero_point);
 }
diff --git a/src/gallium/drivers/ethosu/registers.xml b/src/gallium/drivers/ethosu/registers.xml
index fc156e48e5c..0290e7ced43 100644
--- a/src/gallium/drivers/ethosu/registers.xml
+++ b/src/gallium/drivers/ethosu/registers.xml
@@ -242,10 +242,13 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
       <bitfield name="param" low="0" high="15" type="uint"/>
    </reg32>
    <reg32 offset="0x185" name="NPU_SET_IFM2_PRECISION">
-      <bitfield name="reserved1" low="8" high="15" type="uint"/>
-      <bitfield name="format" low="6" high="7" type="uint"/>
-      <bitfield name="reserved0" low="4" high="5" type="uint"/>
-      <bitfield name="precision" low="0" high="3" type="uint"/>
+      <bitfield name="activation_storage" low="14" high="15" type="uint"/>
+      <bitfield name="reserved3" low="8" high="13" type="uint"/>
+      <bitfield name="activation_format" low="6" high="7" type="uint"/>
+      <bitfield name="reserved2" low="4" high="5" type="uint"/>
+      <bitfield name="activation_precision" low="2" high="3" type="uint"/>
+      <bitfield name="reserved1" low="1" high="1" type="uint"/>
+      <bitfield name="activation_type" low="0" high="0" type="uint"/>
    </reg32>
    <reg32 offset="0x189" name="NPU_SET_IFM2_ZERO_POINT">
       <bitfield name="param" low="0" high="15" type="uint"/>
@@ -379,6 +382,10 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
       <bitfield name="param" low="2" high="17" type="uint"/>
       <bitfield name="payload_size" low="0" high="1" type="uint"/>
    </reg32>
+   <reg32 offset="0x39" name="NPU_SET_OP_SCALAR">
+      <bitfield name="param" low="2" high="17" type="uint"/>
+      <bitfield name="payload_size" low="0" high="1" type="uint"/>
+   </reg32>
    <reg32 offset="0x80" name="NPU_SET_IFM2_BASE0">
       <bitfield name="reserved0" low="2" high="17" type="uint"/>
       <bitfield name="payload_size" low="0" high="1" type="uint"/>