diff --git a/config/boards/shields/charybdis/charybdis_pmw3610.dtsi b/config/boards/shields/charybdis/charybdis_pmw3610.dtsi
new file mode 100644
index 00000000..f7770225
--- /dev/null
+++ b/config/boards/shields/charybdis/charybdis_pmw3610.dtsi
@@ -0,0 +1,52 @@
+#define INPUT_EV_KEY 0x01               /**< Key event */
+#define INPUT_EV_REL 0x02               /**< Relative coordinate event */
+#define INPUT_EV_ABS 0x03               /**< Absolute coordinate event */
+#define INPUT_EV_MSC 0x04               /**< Miscellaneous event */
+#define INPUT_EV_VENDOR_START 0xf0      /**< Vendor specific event start */
+#define INPUT_EV_VENDOR_STOP 0xff       /**< Vendor specific event stop */
+
+#define INPUT_REL_X 0x00                /**< Relative X coordinate */
+#define INPUT_REL_Y 0x01                /**< Relative Y coordinate */
+#define INPUT_REL_WHEEL 0x08            /**< Relative wheel coordinate */
+#define INPUT_REL_HWHEEL 0x06           /**< Relative horizontal wheel coordinate */
+#define INPUT_REL_MISC 0x09             /**< Relative misc coordinate */
+
+&pinctrl {
+    spi0_default: spi0_default {
+        group1 {
+            psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,
+                <NRF_PSEL(SPIM_MOSI, 0, 17)>,
+                <NRF_PSEL(SPIM_MISO, 0, 17)>;
+        };
+    };
+
+    spi0_sleep: spi0_sleep {
+        group1 {
+            psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,
+                <NRF_PSEL(SPIM_MOSI, 0, 17)>,
+                <NRF_PSEL(SPIM_MISO, 0, 17)>;
+            low-power-enable;
+        };
+    };
+};
+
+&spi0 {
+    status = "disabled";
+    compatible = "nordic,nrf-spim";
+    pinctrl-0 = <&spi0_default>;
+    pinctrl-1 = <&spi0_sleep>;
+    pinctrl-names = "default", "sleep";
+    cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
+
+    trackball: trackball@0 {
+        status = "disabled";
+        compatible = "pixart,pmw3610";
+        reg = <0>;
+        spi-max-frequency = <2000000>;
+        irq-gpios = <&gpio0 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+        cpi = <1000>;
+        evt-type = <INPUT_EV_REL>;
+        x-input-code = <INPUT_REL_X>;
+        y-input-code = <INPUT_REL_Y>;
+    };
+};