From 7e711c98f8fcd949b9430bbf243d60348d0ef28b Mon Sep 17 00:00:00 2001 From: Andreas Hansson Date: Fri, 3 Jul 2015 10:14:48 -0400 Subject: [PATCH] mem: Increase the default buffer sizes for the DDR4 controller This patch increases the default read/write buffer sizes for the DDR4 controller config to values that are more suitable for the high bandwidth and high bank count. --- src/mem/DRAMCtrl.py | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mem/DRAMCtrl.py b/src/mem/DRAMCtrl.py index ef187a31c..d02011526 100644 --- a/src/mem/DRAMCtrl.py +++ b/src/mem/DRAMCtrl.py @@ -522,6 +522,11 @@ class DDR4_2400_x64(DRAMCtrl): # constraints incurred by the bank groups banks_per_rank = 16 + # override the default buffer sizes and go for something larger to + # accommodate the larger bank count + write_buffer_size = 128 + read_buffer_size = 64 + # 1200 MHz tCK = '0.833ns' -- 2.30.2