init: Cast DDR4 RCD fine_speed to int

Fixes `TypeError: unsupported operand type(s) for |: 'int' and 'float'` for some clock frequencies. Signed-off-by: David Shah <dave@ds0.me>
2020-10-13 13:10:31 +01:00 · 2020-10-13 13:10:31 +01:00 · eb6268a783
parent ce2c410965
commit eb6268a783
1 changed files with 1 additions and 1 deletions
--- a/litedram/init.py
+++ b/litedram/init.py
@ -398,7 +398,7 @@ def get_ddr4_phy_init_sequence(phy_settings, timing_settings):
        def get_fine_speed(tck):
            # JESD82-31A page 83
            freq = 2/tck
-            fine_speed = (freq - 1240e6) // 20e6
+            fine_speed = int((freq - 1240e6) // 20e6)
            fine_speed = max(fine_speed, 0)
            fine_speed = min(fine_speed, 0b1100001)
            return fine_speed