diff --git a/litex_boards/targets/sipeed_tang_primer_20k.py b/litex_boards/targets/sipeed_tang_primer_20k.py
index ac6723e..4c1b964 100755
--- a/litex_boards/targets/sipeed_tang_primer_20k.py
+++ b/litex_boards/targets/sipeed_tang_primer_20k.py
@@ -62,6 +62,8 @@ class _CRG(Module):
             video_pll.create_clkout(self.cd_hdmi5x, 125e6)
             self.specials += Instance("CLKDIV",
                 p_DIV_MODE= "5",
+                i_RESETN = 1, # disable reset signal
+                i_CALIB  = 0, # no calibration
                 i_HCLKIN = self.cd_hdmi5x.clk,
                 o_CLKOUT = self.cd_hdmi.clk
             )