Cr50: Check in the script for cr50_fpga_regdefs.h

We've been converting the FPGA headers to our headers using a
script that we've passed around via email. Let's check it in so
we don't diverge.

BUG=none
BRANCH=none
TEST=manual

Run ./util/cr50_regs on the latest FPGA header, compare the
output with chip/g/cr50_fpga_regdefs.h. They match.

Change-Id: I6b435755a047265ea91d1af4e3e753e7555d149d
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/306290
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/util/cr50_regs b/util/cr50_regs
new file mode 100755
index 0000000000..2ac117f4a6
--- /dev/null
+++ b/util/cr50_regs
@@ -0,0 +1,72 @@
+#!/usr/bin/perl
+# Copyright 2015 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+use strict;
+our $opt_D;
+
+use File::Basename;
+my $progdir = dirname($0);
+my $prog = basename($0);
+
+use Getopt::Std;
+my $usage = "
+Usage:  $prog [HEADER]
+
+This converts the FPGA release's generated C header file into the
+cr50_fpga_regdefs.h file that is included by chip/g/registers.h.
+Mostly it just prefaces the macros with GC_ to avoid name collision.
+
+";
+getopts('D') or die $usage;
+
+
+print "/*
+ * Copyright 2015 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* This file is autogenerated by the $prog utility. Do not edit. */
+
+";
+
+while(<>)
+{
+    if ( s/\b\w+_REGDEFS_H/__EC_CHIP_G_CR50_FPGA_REGDEFS_H/g )
+    {
+        print;
+        next;
+    }
+
+    if ( s/__ENABLE_FLASH_DFT_DEFINITIONS__/GC__ENABLE_FLASH_DFT_DEFINITIONS__/g )
+    {
+        print;
+        next;
+    }
+
+    if ( s/\bFLASH_DFT/GC_FLASH_DFT/g )
+    {
+        print;
+        next;
+    }
+
+    if ( m/^#define\s+(\S+)\s+(\S+)\s*$/ )
+    {
+        my ($k,$v) = ($1,$2);
+
+        if ($k =~ m/^IRQNUM/) {
+            # irqnums must be decimal
+            $v = 0 + hex($v);
+        }
+        printf("#define %-40s %s\n", "GC_$k", $v);
+        next;
+    }
+
+    next if m!//!;
+    next if m!/\*! .. m!\*/!;
+
+    print;
+}
+