Commit graph

19 commits

Author SHA1 Message Date
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Simon Glass
a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00
Wenyou Yang
f8b7fff1d5 serial: atmel_usart: Add clk support
Add the clock support.
Note that the clock handling of the DBGU peripheral is different
from the USART.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09 12:14:15 -06:00
Wenyou Yang
5f29e79915 serial: atmel_usart: Fix early debug not work in SPL
Add the uart init function to be used on both probe and the early
debug uart init. For the latter, the input clock should be from
CONFIG_DEBUG_UART_CLOCK.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09 12:14:15 -06:00
Wenyou Yang
998cf3c2be serial: atmel_usart: Support enable an early debug UART
Add support to enable an early debug UART for debugging.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-10-28 18:37:15 +02:00
Wenyou Yang
c1631c8a04 serial: atmel_usart: Add device tree support
Add device tree support.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-06-12 23:49:38 +02:00
Simon Glass
0f65f48b64 dm: at91: Add driver model support for the serial driver
Add driver model support while retaining the existing legacy code. This
allows the driver to support boards that have converted to driver model
as well as those that have not.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-11-21 08:09:58 +01:00
Simon Glass
62137fc0ab dm: at91: Refactor serial driver slightly for driver model
Before adding driver model support, split out a few of the functions so
that they can be used by the driver model code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Andreas Bießmann <andreas.devel@googlemail.com>
2014-11-21 08:09:55 +01:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Marek Vasut
ec3fd68952 serial: Use default_serial_puts() in drivers
Replace the in-place ad-hoc implementation of serial_puts() within
the drivers with default_serial_puts() call. This cuts down on the
code duplication quite a bit.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
2012-10-17 07:55:50 -07:00
Marek Vasut
a382725060 serial: Remove CONFIG_SERIAL_MULTI from serial drivers
Remove the support for not-CONFIG_SERIAL_MULTI part from serial
port drivers and some board files. Since CONFIG_SERIAL_MULTI is
now enabled by default, that part is a dead code. Remove it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
2012-10-15 11:53:58 -07:00
Marek Vasut
cfba4573f6 serial: arm: Implement CONFIG_SERIAL_MULTI into atmel serial driver
Implement support for CONFIG_SERIAL_MULTI into atmel serial driver.
This driver was so far only usable directly, but this patch also adds
support for the multi method. This allows using more than one serial
driver alongside the atmel driver. Also, add a weak implementation
of default_serial_console() returning this driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Xu, Hong <Hong.Xu@atmel.com>
2012-10-15 11:53:54 -07:00
Xu, Hong
1f4faedd51 AT91: Small fix on AT91 USART initialization code
Before reset dbgu transmitter, we just wait TXEMPTY to drain the
transmitter register(Just in case). If not doing this, we may sometimes
see several weird characters from DBGU.

A short delay is also added to make sure the new serial settings are
settled.

Signed-off-by: Hong Xu <hong.xu@atmel.com>
[cherry-picked from u-boot-atmel/old-next]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2012-09-01 17:06:13 +02:00
Reinhard Meyer
329f0f52fa ATMEL: fix related common atmel driver files
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2011-05-18 07:56:51 +02:00
Andreas Bießmann
125637c572 atmel_usart: change register access to C structure
This patch introduces C structure definition for register footprint of atmel's
 usart.

Signed-off-by: Andreas Bießmann <biessmann@corscience.de>
2010-10-05 16:58:56 +02:00
Jens Scharsig
0cf0b93161 convert common files to new SoC access
* add's a warning to all files, which need update to new SoC access
 * convert common files in cpu/../at91 and a lot of drivers to use
   c stucture SoC access

Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
2010-02-12 12:31:55 -06:00
Jean-Christophe PLAGNIOL-VILLARD
843a2654bc at91sam9: add watchdog support
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-04-04 20:42:19 +02:00
Stefan Roese
f2302d4430 Fix merge problems
Signed-off-by: Stefan Roese <sr@denx.de>
2008-08-06 14:05:38 +02:00
Jean-Christophe PLAGNIOL-VILLARD
1378df792a drivers/serial : move serial drivers to drivers/serial
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2007-11-25 23:24:16 +01:00
Renamed from drivers/atmel_usart.c (Browse further)