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doc: board: Add Intel Edison board doc

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This extracts Intel Edison board specific information from
README.x86, converts plain text documentation to reST format and
adds it to Sphinx TOC tree. No essential content change.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
This commit is contained in:
Bin Meng 2019-07-18 00:34:09 -07:00 committed by Tom Rini
parent 87fdda62cd
commit 225b87c26d
3 changed files with 42 additions and 37 deletions
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37
doc/README.x86
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@ -47,16 +47,6 @@ on other architectures, like below:
$ make coreboot_defconfig
$ make all
Build Instructions for U-Boot as main bootloader
------------------------------------------------
Intel Edison instructions:
Simple you can build U-Boot and obtain u-boot.bin
$ make edison_defconfig
$ make all
Build Instructions for U-Boot as BIOS replacement (bare mode)
-------------------------------------------------------------
Building a ROM version of U-Boot (hereafter referred to as u-boot.rom) is a
@ -346,33 +336,6 @@ are missing in the 64-bit world. One notable feature is the VGA console
support which is currently missing, so that you must specify '-nographic'
to get 64-bit U-Boot up and running.
Updating U-Boot on Edison
-------------------------
By default Intel Edison boards are shipped with preinstalled heavily
patched U-Boot v2014.04. Though it supports DFU which we may be able to
use.
1. Prepare u-boot.bin as described in chapter above. You still need one
more step (if and only if you have original U-Boot), i.e. run the
following command:
$ truncate -s %4096 u-boot.bin
2. Run your board and interrupt booting to U-Boot console. In the console
call:
=> run do_force_flash_os
3. Wait for few seconds, it will prepare environment variable and runs
DFU. Run DFU command from the host system:
$ dfu-util -v -d 8087:0a99 --alt u-boot0 -D u-boot.bin
4. Return to U-Boot console and following hint. i.e. push Ctrl+C, and
reset the board:
=> reset
CPU Microcode
-------------
Modern CPUs usually require a special bit stream called microcode [8] to be

41
doc/board/intel/edison.rst Normal file
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@ -0,0 +1,41 @@
.. SPDX-License-Identifier: GPL-2.0+
.. sectionauthor:: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Edison
======
Build Instructions for U-Boot as main bootloader
------------------------------------------------
Simple you can build U-Boot and obtain u-boot.bin::
$ make edison_defconfig
$ make all
Updating U-Boot on Edison
-------------------------
By default Intel Edison boards are shipped with preinstalled heavily
patched U-Boot v2014.04. Though it supports DFU which we may be able to
use.
1. Prepare u-boot.bin as described in chapter above. You still need one
more step (if and only if you have original U-Boot), i.e. run the
following command::
$ truncate -s %4096 u-boot.bin
2. Run your board and interrupt booting to U-Boot console. In the console
call::
=> run do_force_flash_os
3. Wait for few seconds, it will prepare environment variable and runs
DFU. Run DFU command from the host system::
$ dfu-util -v -d 8087:0a99 --alt u-boot0 -D u-boot.bin
4. Return to U-Boot console and following hint. i.e. push Ctrl+C, and
reset the board::
=> reset

1
doc/board/intel/index.rst
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@ -10,4 +10,5 @@ Intel
cherryhill
cougarcanyon2
crownbay
edison
minnowmax