From 5c6654733464c8fd845b076483b38fd98e660f53 Mon Sep 17 00:00:00 2001
From: Antony Pavlov <antonynpavlov@gmail.com>
Date: Wed, 29 May 2019 13:13:37 +0300
Subject: [PATCH] modules: SDRAM: add IS42S16320 support

The IS42S16320D-7TL 32Mx16 512Mb SDRAM chips
are used in Terasic DE1-SoC and Terasic DE2-115
FPGA development boards.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
---
 litedram/modules.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/litedram/modules.py b/litedram/modules.py
index 1b86e0d..3050423 100644
--- a/litedram/modules.py
+++ b/litedram/modules.py
@@ -103,6 +103,17 @@ class IS42S16160(SDRAMModule):
     speedgrade_timings = {"default": _SpeedgradeTimings(tRP=20, tRCD=20, tWR=20, tRFC=(None, 70), tFAW=None, tRAS=None)}
 
 
+class IS42S16320(SDRAMModule):
+    memtype = "SDR"
+    # geometry
+    nbanks = 4
+    nrows  = 8192
+    ncols  = 1024
+    # timings
+    technology_timings = _TechnologyTimings(tREFI=64e6/8192, tWTR=(2, None), tCCD=(1, None), tRRD=None)
+    speedgrade_timings = {"default": _SpeedgradeTimings(tRP=20, tRCD=20, tWR=20, tRFC=(None, 70), tFAW=None, tRAS=None)}
+
+
 class MT48LC4M16(SDRAMModule):
     memtype = "SDR"
     # geometry