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path: root/drivers/serial/serial_pl01x.c
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2015-05-10serial: fdt: add device tree support for pl01xVikas Manocha
This patch adds device tree support for arm pl010/pl011 driver. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-04-21serial: pl01x: fix PL010 regressionLinus Walleij
commit aed2fbef5e9a0ab5a7cd01e742039a962f0b24ef "dm: serial: Tidy up the pl01x driver" caused a regression on (real hardware) PL010 by omitting to update the line control register when switching baudrate. Fix this by inlining the missing write to the baud control register. Also renaming the set_line_control() function to pl011_set_line_control() since this function is clearly PL011-specific, and it won't suffice to call that to set up line control. Tested on the Integrator/AP hardware. Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-12-11dm: serial_pl01x: Add missing private data sizeSimon Glass
The private data size is missing from the driver, so we store it at 0, which causes problems when something overwrites memory at 0. Fix this. Change-Id: I6f551ee905b0064ae8343e41e46450c37c8c8c1a Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
2014-12-08serial: pl01x: avoid pl01x type check two timesVikas Manocha
Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: disable as per type of pl01xVikas Manocha
pl010 & pl011 have different control register offsets, setting it as per the pl01x type. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: move all line control at same placeVikas Manocha
Receive line control uses same setting as transmit line control, also one lcrh write is effective for both baud rate & receive line control internal update. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: fix pl011 baud rate configurationVikas Manocha
UART_IBRD, UART_FBRD, and UART_LCR_H form a single 30-bit wide register which is updated on a single write strobe generated by a UART_LCR_H write. So, to internally update the content of UART_IBRD or UART_FBRD, a write to UART_LCR_H must always be performed at the end. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-12-08serial: pl01x: pass pl01x_type to set baudrateVikas Manocha
Although we were checking the pl01x type, seems like PL010 type was being passed by mistake. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2014-10-23dm: move platform data headers to include/dm/platform_dataMasahiro Yamada
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: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-10-22dm: serial: Support driver model in pl01x driverSimon Glass
Add driver model support in this driver, using platform data provided by the board. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
2014-10-22dm: serial: Tidy up the pl01x driverSimon Glass
Adjust the driver so that leaf functions take a pointer to the serial port register base. Put all the global configuration in the init function, and use the same settings from then on. This makes it much easier to move to driver model without duplicating the code, since with driver model we use platform data rather than global settings. The driver is compiled with either the CONFIG_PL010_SERIAL or CONFIG_PL011_SERIAL option and this determines the uart type. With driver model this needs to come in from platform data, so create a new CONFIG_PL01X_SERIAL config which brings in the driver, and adjust the driver to support both peripheral variants. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2012-12-07serial_pl011: Set RTS during initializationJoshua Housh
If the pl011 is connected to another device which has hardware flow-control on, characters are never received by the pl011. Asserting RTS when flow-control is off will have no effect. This is in line with how Linux behaves. Signed-off-by: Joshua Housh <joshua.housh@calxeda.com> Tested-by: Marek Vasut <marex@denx.de>
2012-10-17serial: Use default_serial_puts() in driversMarek Vasut
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>
2012-10-15serial: Remove CONFIG_SERIAL_MULTI from serial driversMarek Vasut
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>
2012-10-15serial: arm: Implement CONFIG_SERIAL_MULTI into pl01x serial driverMarek Vasut
Implement support for CONFIG_SERIAL_MULTI into pl01x 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 pl01x 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: Stefano Babic <sbabic@denx.de> Cc: Mathieu J. Poirier <mathieu.poirier@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: John Rigby <john.rigby@linaro.org> Cc: Rabin Vincent <rabin.vincent@stericsson.com>
2012-09-01snowball: Add support for ux500 based snowball boardMathieu J. Poirier
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: John Rigby <john.rigby@linaro.org> Acked-by: Tom Rini <trini@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Conflicts: drivers/gpio/Makefile
2011-10-22serial: pl01x: drain PL01x FIFO before baudrate changeLinus Walleij
Not draining the FIFO and waiting for the UART to be non-busy before changing baudrate results in crap characters on the console, so let's wait for the FIFO to drain and the last character to be clocked out before we do that. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2011-05-12Serial: p1011: new vendor init optionsJohn Rigby
Two new options: CONFIG_PL011_SERIAL_RLCR Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500) have separate receive and transmit line control registers. Set this variable to initialize the extra register. CONFIG_PL011_SERIAL_FLUSH_ON_INIT On some platforms (e.g. U8500) U-Boot is loaded by a second stage boot loader that has already initialized the UART. Define this variable to flush the UART at init time. empty fifo on init Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
2010-11-30pl01x: use C structs and readl/writelRabin Vincent
Use C structs for registers, and use readl/writel instead of custom accessors. Acked-by: Michael Brandt <michael.brandt@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
2010-10-13ARMV7: Fixed baudrate setting in pl01x driverMatt Waddel
The pl01x serial driver was lacking the code to switch baudrates from the command line. Fixed by simply saving the new baudrate and calling serial_init() again. Also fixed CamelCase variables, I/O accessors and comment style. Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
2008-09-09Moved conditional compile into MakefileAndreas Engel
Signed-off-by: Andreas Engel <andreas.engel@ericsson.com>
2008-09-09Merged serial_pl010.c and serial_pl011.c.Andreas Engel
They only differ in the init function. This also adds the missing watchdog support for the PL011. Signed-off-by: Andreas Engel <andreas.engel@ericsson.com>
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