diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 6321326eb751..cd0e08b0c9f6 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -499,7 +499,7 @@ static void rockchip_spi_config(struct rockchip_spi *rs)
 	}
 
 	/* div doesn't support odd number */
-	div = rs->max_freq / rs->speed;
+	div = max_t(u32, rs->max_freq / rs->speed, 1);
 	div = (div + 1) & 0xfffe;
 
 	spi_enable_chip(rs, 0);