[PATCH v1] doc: edison: Update information about xFSTK

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

xFSTK sources got a new home under Edison Firmware Group on GitHub [1].
Update Intel Edison documentation accordingly.

While here, fix couple of typos.

[1]: https://github.com/edison-fw

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 doc/board/intel/edison.rst | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/doc/board/intel/edison.rst b/doc/board/intel/edison.rst
index d658fac02c8f..711fb4984ed4 100644
--- a/doc/board/intel/edison.rst
+++ b/doc/board/intel/edison.rst
@@ -45,16 +45,27 @@ Updating U-Boot using xFSTK
 ---------------------------
 
 You can also update U-Boot using the xfstk-dldr-solo tool if you can build it.
-One way to do that is to follow the `xFSTK`_ instructions. You may need to use
-a virtual machine running Ubuntu Trusty. Once you have built it and installed
-libboost-all-dev, you can copy xfstk-dldr-solo to /usr/local/bin and
+One way to do that is to follow the `xFSTK`_ instructions. In short, after you
+install all necessary dependencies and clone repository, it will look like this:
+
+.. code-block:: console
+
+  cd xFSTK
+  export DISTRIBUTION_NAME=ubuntu20.04
+  export BUILD_VERSION=1.8.5
+  git checkout v$BUILD_VERSION
+  ...
+
+Once you have built it, you can copy xfstk-dldr-solo to /usr/local/bin and
 libboost_program_options.so.1.54.0 to /usr/lib/i386-linux-gnu/ and with luck
-it will work. You might fine this `drive`_ helpful.
+it will work. You might find this `drive`_ helpful.
+
+If it does, then you can download and unpack the Edison recovery image,
+install dfu-util, reset your board and flash U-Boot like this:
 
-If it does, then you can download and unpack the Edison reocovery image,
-install dfu-util, reset your board and flash U-Boot like this::
+.. code-block:: console
 
-   $ xfstk-dldr-solo --gpflags 0x80000007 \
+  xfstk-dldr-solo --gpflags 0x80000007 \
       --osimage u-boot-edison.img \
       --fwdnx recover/edison_dnx_fwr.bin \
       --fwimage recover/edison_ifwi-dbg-00.bin \
@@ -64,7 +75,7 @@ This should show the following
 
 .. code-block:: none
 
-  XFSTK Downloader Solo 0.0.0
+  XFSTK Downloader Solo 1.8.5
   Copyright (c) 2015 Intel Corporation
   Build date and time: Aug 15 2020 15:07:13
 
@@ -75,13 +86,12 @@ This should show the following
   .......(lots of dots)........XFSTK-STATUS--Reconnecting to device - Attempt #1
   .......(even more dots)......................
 
-
 You have about 10 seconds after resetting the board to type the above command.
 If you want to check if the board is ready, type:
 
 .. code-block:: none
 
-  lsusb |egrep "8087|8086"
+  lsusb | egrep "8087|8086"
   Bus 001 Device 004: ID 8086:e005 Intel Corp.
 
 If you see a device with the same ID as above, the board is waiting for your
@@ -157,5 +167,5 @@ After about 5 seconds you should see some console output from the board:
 
   edison login:
 
-.. _xFSTK: https://community.intel.com/t5/Intel-Makers/Building-xFSTK-on-Ubuntu-14-04-32-bit-for-flashing-Edison/td-p/538081
+.. _xFSTK: https://github.com/edison-fw/xFSTK
 .. _drive: https://drive.google.com/drive/u/0/folders/1URPHrOk9-UBsh8hjv-7WwC0W6Fy61uAJ
-- 
2.29.2