From 24934aff863cd739de47013454b710c1cf2b0967 Mon Sep 17 00:00:00 2001
From: Xifan Tang <tangxifan@gmail.com>
Date: Tue, 5 May 2020 16:44:07 -0600
Subject: [PATCH] update documentation on the depth option for fabric hierarchy
 writer

---
 docs/source/openfpga_shell/openfpga_commands.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/docs/source/openfpga_shell/openfpga_commands.rst b/docs/source/openfpga_shell/openfpga_commands.rst
index 296a24a25..5cd5a8c33 100644
--- a/docs/source/openfpga_shell/openfpga_commands.rst
+++ b/docs/source/openfpga_shell/openfpga_commands.rst
@@ -108,6 +108,8 @@ Setup OpenFPGA
   
   - ``--file`` or ``-f`` Specify the file name to write the hierarchy. 
 
+  - ``--depth`` Specify at which depth of the fabric module graph should the writer stop outputting. The root module start from depth 0. For example, if you want a two-level hierarchy, you should specify depth as 1. 
+
   - ``--verbose`` Show verbose log
 
   .. note:: This file is designed for hierarchical PnR flow, which requires the tree of Multiple-Instanced-Blocks (MIBs).