[sw] Cleanup Meson configuration files
- Add comments to meson-config.txt
- Remove legacy toolchain.txt
Signed-off-by: Luís Marques <luismarques@lowrisc.org>
diff --git a/meson-config.txt b/meson-config.txt
index ad141ae..7398975 100644
--- a/meson-config.txt
+++ b/meson-config.txt
@@ -1,3 +1,8 @@
+# Copyright lowRISC contributors.
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+# override toolchain configuration defaults
[constants]
-march = 'rv32imc'
+march = 'rv32imc' # don't enable bitmanip for now
default_extra_args = []
