2020-04-30 16:22:58

by Mauro Carvalho Chehab

[permalink] [raw]
Subject: [PATCH v4 09/19] docs: misc-devices/c2port.txt: convert to ReST format

- Use copyright symbol;
- use title markups;
- adjust indentation;
- mark literal blocks as such.

Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
.../misc-devices/{c2port.txt => c2port.rst} | 58 ++++++++++---------
Documentation/misc-devices/index.rst | 1 +
2 files changed, 32 insertions(+), 27 deletions(-)
rename Documentation/misc-devices/{c2port.txt => c2port.rst} (59%)

diff --git a/Documentation/misc-devices/c2port.txt b/Documentation/misc-devices/c2port.rst
similarity index 59%
rename from Documentation/misc-devices/c2port.txt
rename to Documentation/misc-devices/c2port.rst
index ea7344465610..258e1c1d43c7 100644
--- a/Documentation/misc-devices/c2port.txt
+++ b/Documentation/misc-devices/c2port.rst
@@ -1,7 +1,11 @@
- C2 port support
- ---------------
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>

-(C) Copyright 2007 Rodolfo Giometti <[email protected]>
+===============
+C2 port support
+===============
+
+|copy| Copyright 2007 Rodolfo Giometti <[email protected]>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -32,10 +36,10 @@ The C2 Interface main references are at (http://www.silabs.com)
Silicon Laboratories site], see:

- AN127: FLASH Programming via the C2 Interface at
-http://www.silabs.com/Support Documents/TechnicalDocs/an127.pdf
+ http://www.silabs.com/Support Documents/TechnicalDocs/an127.pdf

- C2 Specification at
-http://www.silabs.com/pages/DownloadDoc.aspx?FILEURL=Support%20Documents/TechnicalDocs/an127.pdf&src=SearchResults
+ http://www.silabs.com/pages/DownloadDoc.aspx?FILEURL=Support%20Documents/TechnicalDocs/an127.pdf&src=SearchResults

however it implements a two wire serial communication protocol (bit
banging) designed to enable in-system programming, debugging, and
@@ -47,44 +51,44 @@ Using the driver
----------------

Once the driver is loaded you can use sysfs support to get C2port's
-info or read/write in-system flash.
+info or read/write in-system flash::

-# ls /sys/class/c2port/c2port0/
-access flash_block_size flash_erase rev_id
-dev_id flash_blocks_num flash_size subsystem/
-flash_access flash_data reset uevent
+ # ls /sys/class/c2port/c2port0/
+ access flash_block_size flash_erase rev_id
+ dev_id flash_blocks_num flash_size subsystem/
+ flash_access flash_data reset uevent

Initially the C2port access is disabled since you hardware may have
such lines multiplexed with other devices so, to get access to the
-C2port, you need the command:
+C2port, you need the command::

-# echo 1 > /sys/class/c2port/c2port0/access
+ # echo 1 > /sys/class/c2port/c2port0/access

after that you should read the device ID and revision ID of the
-connected micro controller:
+connected micro controller::

-# cat /sys/class/c2port/c2port0/dev_id
-8
-# cat /sys/class/c2port/c2port0/rev_id
-1
+ # cat /sys/class/c2port/c2port0/dev_id
+ 8
+ # cat /sys/class/c2port/c2port0/rev_id
+ 1

However, for security reasons, the in-system flash access in not
-enabled yet, to do so you need the command:
+enabled yet, to do so you need the command::

-# echo 1 > /sys/class/c2port/c2port0/flash_access
+ # echo 1 > /sys/class/c2port/c2port0/flash_access

-After that you can read the whole flash:
+After that you can read the whole flash::

-# cat /sys/class/c2port/c2port0/flash_data > image
+ # cat /sys/class/c2port/c2port0/flash_data > image

-erase it:
+erase it::

-# echo 1 > /sys/class/c2port/c2port0/flash_erase
+ # echo 1 > /sys/class/c2port/c2port0/flash_erase

-and write it:
+and write it::

-# cat image > /sys/class/c2port/c2port0/flash_data
+ # cat image > /sys/class/c2port/c2port0/flash_data

-after writing you have to reset the device to execute the new code:
+after writing you have to reset the device to execute the new code::

-# echo 1 > /sys/class/c2port/c2port0/reset
+ # echo 1 > /sys/class/c2port/c2port0/reset
diff --git a/Documentation/misc-devices/index.rst b/Documentation/misc-devices/index.rst
index 17e77b6aa27c..f4ecafad6678 100644
--- a/Documentation/misc-devices/index.rst
+++ b/Documentation/misc-devices/index.rst
@@ -16,6 +16,7 @@ fit into other categories.

ad525x_dpot
eeprom
+ c2port
ibmvmc
ics932s401
isl29003
--
2.25.4