diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c
index a1f7113..b62301e 100644
--- a/drivers/watchdog/sunxi_wdt.c
+++ b/drivers/watchdog/sunxi_wdt.c
@@ -219,8 +219,18 @@
 	.wdt_reset_val = 0x02,
 };
 
+static const struct sunxi_wdt_reg sun6i_wdt_reg = {
+	.wdt_ctrl = 0x10,
+	.wdt_cfg = 0x14,
+	.wdt_mode = 0x18,
+	.wdt_timeout_shift = 4,
+	.wdt_reset_mask = 0x03,
+	.wdt_reset_val = 0x01,
+};
+
 static const struct of_device_id sunxi_wdt_dt_ids[] = {
 	{ .compatible = "allwinner,sun4i-a10-wdt", .data = &sun4i_wdt_reg },
+	{ .compatible = "allwinner,sun6i-a31-wdt", .data = &sun6i_wdt_reg },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sunxi_wdt_dt_ids);