From: Jean THOMAS <git0@pub.jeanthomas.me>
Date: Tue, 4 Aug 2020 13:48:24 +0000 (+0200)
Subject: Raise ValueError if the number of DQ pads is not a multiple of 8 (fixing #48)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6c408b0a885518a181d2cecc1204aac61c64ed52;p=gram.git

Raise ValueError if the number of DQ pads is not a multiple of 8 (fixing #48)
---

diff --git a/gram/phy/ecp5ddrphy.py b/gram/phy/ecp5ddrphy.py
index bdd02dd..de4cbdd 100644
--- a/gram/phy/ecp5ddrphy.py
+++ b/gram/phy/ecp5ddrphy.py
@@ -85,7 +85,8 @@ class ECP5DDRPHY(Peripheral, Elaboratable):
         self._sys_clk_freq = sys_clk_freq
 
         databits = len(self.pads.dq.io)
-        assert databits % 8 == 0
+        if databits % 8 != 0:
+            raise ValueError("DQ pads should come in a multiple of 8")
 
         # CSR
         bank = self.csr_bank()