docs/getting-started: section 'Loading bitstreams' moved from arch-defs

Signed-off-by: Unai Martinez-Corral <umartinezcorral@antmicro.com>

docs/conf.py

@@ -172,8 +172,10 @@ man_pages = [
 intersphinx_mapping = {
     "python": ("https://docs.python.org/3/", None),
     "arch-defs": ("https://f4pga.readthedocs.io/projects/arch-defs/en/latest/", None),
-    "interchange": ("https://fpga-interchange-schema.readthedocs.io/", None),
+    "constraints": ("https://hdl.github.io/constraints/", None),
     "fasm": ("https://fasm.readthedocs.io/en/latest/", None),
+    "interchange": ("https://fpga-interchange-schema.readthedocs.io/", None),
+    "openfpgaloader": ("https://trabucayre.github.io/openFPGALoader/", None),
     "prjtrellis": ("https://prjtrellis.readthedocs.io/en/latest/", None),
     "prjxray": ("https://f4pga.readthedocs.io/projects/prjxray/en/latest/", None),
     "vtr": ("https://docs.verilogtorouting.org/en/latest/", None),

docs/getting-started.rst

@@ -18,3 +18,51 @@ your FPGA.
   * `Project Trellis ➚ <https://prjtrellis.readthedocs.io/en/latest/>`__
 
   * :gh:`Project Icestorm ➚ <f4pga/icestorm>`
+
+
+.. _GettingStarted:LoadingBitstreams:
+
+Loading bitstreams
+==================
+
+For every board, the loading process may vary and different tools may be required.
+Typically, each tool supports a specific target family or the lines of products of a vendor.
+Some of the most known are listed in :ref:`hdl/constraints: Programming and debugging <constraints:ProgDebug>`.
+The tools used in the F4PGA Toolchain are e.g. ``OpenOCD``, ``tinyfpgab`` or ``tinyprog``.
+Moreover, :gh:`OpenFPGALoader <trabucayre/openFPGALoader>` is a universal utility for programming FPGA devices, which is
+becoming an alternative to the fragmentation in bitstream loading tools.
+OpenFPGALoader supports many different boards with FPGAs based on the architectures including xc7, ECP5, iCE40 and many
+more.
+It can utilize a variety of the programming adapters based on JTAG, DAP interface, ORBTrace, DFU and FTDI chips.
+
+Installing OpenFPGALoader
+-------------------------
+
+OpenFPGALoader is available in several packaging solutions.
+It can be installed with distribution specific package managers on Arch Linux and Fedora.
+There are also prebuilt packages available in `conda <https://anaconda.org/litex-hub/openfpgaloader>`__
+or packages in tool :gh:`repository <trabucayre/openFPGALoader/releases>`.
+OpenFPGALoader can also be built from sources.
+For installation guidelines using both prebuilt packages and building from source, please refer to instructions in
+:gh:`readme <trabucayre/openFPGALoader/blob/master/INSTALL.md>`.
+
+Usage
+-----
+
+For programming the FPGA, use one of these commands:
+
+.. sourcecode:: bash
+
+    openFPGALoader -b <board> <bitstream>           # (e.g. arty)
+    openFPGALoader -c <cable> <bitstream>           # (e.g. digilent)
+    openFPGALoader -d <device> <bitstream>          # (e.g. /dev/ttyUSB0)
+
+You can also list the supported boards, cables and FPGAs:
+
+.. sourcecode:: bash
+
+    openFPGALoader --list-boards
+    openFPGALoader --list-cables
+    openFPGALoader --list-fpga
+
+If you encounter any issues, please refer to :doc:`openfpgaloader:index`.