From: William D. Jones <thor0505@comcast.net>
Date: Sat, 8 Sep 2018 01:49:24 +0000 (-0400)
Subject: Add COPY_TO_MAIN_RAM generated Makefile variable to distinguish systems with/without... 
X-Git-Tag: 24jan2021_ls180~1618^2
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bd70ba278bd33b9ecfa5dafbcd21943775de2754;p=litex.git

Add COPY_TO_MAIN_RAM generated Makefile variable to distinguish systems with/without main_ram region.
---

diff --git a/litex/soc/integration/builder.py b/litex/soc/integration/builder.py
index 45bfd4ae..2fe1667b 100644
--- a/litex/soc/integration/builder.py
+++ b/litex/soc/integration/builder.py
@@ -71,6 +71,12 @@ class Builder:
             variables_contents.append("{}={}\n".format(k, _makefile_escape(v)))
         for k, v in cpu_interface.get_cpu_mak(cpu_type, cpu_variant):
             define(k, v)
+        # Distinguish between applications running from main RAM and
+        # flash for user-provided software packages.
+        if "main_ram" in (m[0] for m in memory_regions):
+            define("COPY_TO_MAIN_RAM", "1")
+        else:
+            define("COPY_TO_MAIN_RAM", "0")
         define("SOC_DIRECTORY", soc_directory)
         variables_contents.append("export BUILDINC_DIRECTORY\n")
         define("BUILDINC_DIRECTORY", buildinc_dir)