From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Sat, 28 Mar 2015 22:18:08 +0000 (+0100)
Subject: soc: limit main_ram_size to 256MB (we should modify mem_map to allow larger memories... 
X-Git-Tag: 24jan2021_ls180~2421
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=be20fbabe4513f5f8cc768274bf5bbc286ac26ec;p=litex.git

soc: limit main_ram_size to 256MB (we should modify mem_map to allow larger memories, this was the probably ARTIQ runtime issue....!!)
---

diff --git a/misoclib/soc/sdram.py b/misoclib/soc/sdram.py
index 4a8dd901..72f82f78 100644
--- a/misoclib/soc/sdram.py
+++ b/misoclib/soc/sdram.py
@@ -41,6 +41,8 @@ class SDRAMSoC(SoC):
 		main_ram_size = 2**(phy.module.geom_settings.bankbits+
 							phy.module.geom_settings.rowbits+
 							phy.module.geom_settings.colbits)*sdram_width//8
+		# XXX: Limit main_ram_size to 256MB, we should modify mem_map to allow larger memories.
+		main_ram_size = min(main_ram_size, 256*1024*1024)
 
 		# LASMICON frontend
 		if isinstance(self.sdram_controller_settings, LASMIconSettings):