- Use copyright symbol; - use title markups; - adjust indentation; - mark literal blocks as such. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> --- .../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 <giometti@xxxxxxxxxxxx> +=============== +C2 port support +=============== + +|copy| Copyright 2007 Rodolfo Giometti <giometti@xxxxxxxxxxxx> 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 04f5dab2384c..c2e880d78734 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 -- 2.24.1