Use RFDIV in dm-code instead of numeric value, so-that
it can be common for dm and non-dm.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

This patch will add common reg space for non-dm and
dm code and non-dm reg space can be accessed using
mxc_base.

This will
- get rid of __REG volatile assignments
- Make common reg_space by removing unneeded macros
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

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: NSimon Glass <sjg@chromium.org>

Signed-off-by: NSébastien Szymanski <sebastien.szymanski@armadeus.com>

At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Support instatiation through device tree. Also parse the fsl,dte-mode
property to determine whether DTE mode shall be used.
Signed-off-by: NStefan Agner <stefan.agner@toradex.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

Commit 83fd908f ("dm: imx: serial: Support DTE mode when using driver
model") breaks the serial output for the imx boards that do not use
the serial driver model.

The reason for the breakage is that it's setting UFCR_DCEDTE
unconditionally for the non-dm case.

So keep the original behavior by removing UFCR_DCEDTE setting in the
non-dm case.

Tested on mx7sabresd and mx6wandboard.
Signed-off-by: NBreno Lima <breno.lima@nxp.com>
Acked-by: NStefan Agner <stefan.agner@toradex.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>

The MXC UART IP can be run in DTE or DCE mode. This depends on the
board wiring and the pinmux used and hence is board specific. This
extends platform data with a new field to choose wheather DTE
mode shall be used.
Signed-off-by: NStefan Agner <stefan.agner@toradex.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

In general, a carriage return needs to execute before a line feed.
The patch is to change some serial drivers based on this rule, such
as serial_mxc.c, serial_pxa.c, serial_s3c24x0.c and usbtty.c.
Signed-off-by: NAlison Wang <alison.wang@nxp.com>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This patch writes the default values for TXTL and RXTL to UARTx_UFCR.
Without this patch some older kernel versions crash as UARTx_UFCR was
not always correctly initialized.
Signed-off-by: NMaximilian Schwerin <maximilian.schwerin@tigris.de>

The platform_data definitions are generally referenced from both
drivers and board files.  That is why header files defining
platform_data sturectures are placed in "include" directory,
but our top level "include" directory is already too cluttered.

Let's collect platform_data definitions under the directory
"include/dm/platform_data" like Linux gathers ones around under
"include/linux/platform_data".

This commit moves two header files:

  include/serial_mxc.h -> include/dm/platform_data/serial_mxc.h
  include/serial_pl01x.h -> include/dm/platform_data/serial_pl01x.h
Signed-off-by: NMasahiro Yamada <yamada.m@jp.panasonic.com>

Add driver model support with this driver. Boards which use this driver
should define platform data in their board files.
Signed-off-by: NSimon Glass <sjg@chromium.org>

Bit 7 of UCR3 is described in the i.MX3x/i.MX5x/i.MX6x
reference manuals as follows:

	Autobaud Detection Not Improved-. Disables new features of
	autobaud detection (See Baud Rate Automatic Detection
        Protocol, for more details).

	0 Autobaud detection new features selected
	1 Keep old autobaud detection mechanism

On at least i.MX6DQ, i.MX6DLS and i.MX53, the "new features"
occasionally cause the receiver to get out of sync and
continuously produce received characters of '\xff'.

This patch disables the "new feature" on all boards, since
there's no support for auto-baud in U-Boot on any of them.

More details are available in this post on i.MX Community:
	https://community.freescale.com/message/403254Signed-off-by: NEric Nelson <eric.nelson@boundarydevices.com>
Tested-by: NFabio Estevam <fabio.estevam@freescale.com>
Acked-by: NStefano Babic <sbabic@denx.de>

Signed-off-by: NWolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: NTom Rini <trini@ti.com>

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: NMarek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>

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: NMarek 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: NTom Rini <trini@ti.com>

Implement support for CONFIG_SERIAL_MULTI into mxc 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 mxc driver. Also, add a weak implementation
of default_serial_console() returning this driver.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Tom Rini <trini@ti.com>
Cc: Stefano Babic <sbabic@denx.de>

The serial driver for iMX SOCs is continuosly changed if a
new SOC or not yet used port is used. CONFIG_SYS_<SOC>_<UART Port>
defines were used only to find the base address for the selected UART.
Instead of that, move the base address to the board configuration
file and drop all #ifdef from driver.
Signed-off-by: NStefano Babic <sbabic@denx.de>
CC: Marek Vasut <marek.vasut@gmail.com>
CC: Wolfgang Denk <wd@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Helmut Raiger <helmut.raiger@hale.at>
CC: John Rigby <jcrigby@gmail.com>
CC: Matthias Weisser <weisserm@arcor.de>
CC: Jason Liu <jason.hui@linaro.org>
Acked-by: NJason Liu <jason.hui@linaro.org>

As exception among the i.MX processors, the i.MX31 has headers
without general names (mx31-regs.h, mx31.h instead of imx-regs.h and
clock.h). This requires several nasty #ifdef in the drivers to
include the correct header. The patch cleans up the driver and
renames the header files as for the other i.MX processors.
Signed-off-by: NStefano Babic <sbabic@denx.de>

The patch adds UART support for the i.MX35 processor.
Signed-off-by: NStefano Babic <sbabic@denx.de>

This patch add UART support for Freescale MX53 processor
Signed-off-by: NJason Liu <r64343@freescale.com>

Calls WATCHDOG_RESET() inside serial driver
for boards enabling watchdog.
Signed-off-by: NStefano Babic <sbabic@denx.de>

ARM926EJS core with MX31 peripherals.
Signed-off-by: NJohn Rigby <jcrigby@gmail.com>
Earlier Version Signed-off-by: Wolfgang Denk <wd@denx.de>
CC: Fred Fan <fanyefeng@gmail.com>
CC: Tom <Tom.Rix@windriver.com>

The patch adds support for the Freescale mx51 processor.
Signed-off-by: NStefano Babic <sbabic@denx.de>
Signed-off-by: NFred Fan <fanyefeng@gmail.com>

UART hardware on i.MX27 is the same as on the i.MX31 so we just
need to provide the driver with correct address of the registers.
Signed-off-by: NIlya Yanok <yanok@emcraft.com>

Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Signed-off-by: NJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

The Register URXD contains status information in bits [15..8].
With status bit 15 set, CTRL-C was reported as 0x8003 instead
of 0x03. Therefore CTRL-C was not detected.
To solve this, bits [15..8] were masked out now.
Signed-off-by: NJuergen Kilb <J.Kilb@gmx.de>
Acked-by: NFelix Radensky <felix@embedded-sol.com>

This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.
Signed-off-by: NWolfgang Denk <wd@denx.de>

This patch adds the core support for Freescale mx31
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NGuennadi Liakhovetski <lg@denx.de>

Reverting became necessary after it turned out that the patches in
the u-boot-arm repo were modified, and in some cases corrupted.

This reverts the following commits:

	066bebd6
	7a837b73
	c88ae205
	a147e56f
	d6674e0e
	8c8463cc
	c98b47ad
	8bf69d81
	8c16cb0d
	a574a738
	1377b558
	1704dc20Signed-off-by: NWolfgang Denk <wd@denx.de>

This patch adds the core support for Freescale mx31
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NGuennadi Liakhovetski <lg@denx.de>