soc/build: Remove Migen Git SHA1 from auto-generated headers/bios (Hasn't been useful).

litex/build/tools.py

@@ -102,18 +102,6 @@ else:
     def cygpath(p):
         return p
 
-def get_migen_git_revision():
-    import migen
-    d = os.getcwd()
-    os.chdir(os.path.dirname(migen.__file__))
-    try:
-        r = subprocess.check_output(["git", "rev-parse", "--short", "HEAD"],
-                stderr=subprocess.DEVNULL)[:-1].decode("utf-8")
-    except:
-        r = "--------"
-    os.chdir(d)
-    return r
-
 def get_litex_git_revision():
     import litex
     d = os.getcwd()
@@ -128,9 +116,7 @@ def get_litex_git_revision():
 
 def generated_banner(line_comment="//"):
     r = line_comment + "-"*80 + "\n"
-    r += line_comment + " Auto-generated by Migen ({}) & LiteX ({}) on ".format(
-        get_migen_git_revision(),
-        get_litex_git_revision())
+    r += line_comment + " Auto-generated by LiteX ({}) on ".format(get_litex_git_revision())
     r += "{}\n".format(datetime.datetime.fromtimestamp(time.time()).strftime("%Y-%m-%d %H:%M:%S"))
     r += line_comment + "-"*80 + "\n"
     return r

litex/soc/integration/export.py

@@ -116,10 +116,9 @@ def get_linker_regions(regions):
 # C Export -----------------------------------------------------------------------------------------
 
 def get_git_header():
-    from litex.build.tools import get_migen_git_revision, get_litex_git_revision
+    from litex.build.tools import get_litex_git_revision
     r = generated_banner("//")
     r += "#ifndef __GENERATED_GIT_H\n#define __GENERATED_GIT_H\n\n"
-    r += f"#define MIGEN_GIT_SHA1 \"{get_migen_git_revision()}\"\n"
     r += f"#define LITEX_GIT_SHA1 \"{get_litex_git_revision()}\"\n"
     r += "#endif\n"
     return r

litex/soc/software/bios/main.c

@@ -113,7 +113,6 @@ __attribute__((__used__)) int main(int i, char **c)
 #endif
 	crcbios();
 	printf("\n");
-	printf(" Migen git sha1: "MIGEN_GIT_SHA1"\n");
 	printf(" LiteX git sha1: "LITEX_GIT_SHA1"\n");
 	printf("\n");
 	printf("--=============== \e[1mSoC\e[0m ==================--\n");