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path: root/drivers/serial
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2017-05-15TI: Drop 'CONFIG_OMAP'Tom Rini
In the two cases in the code where we use CONFIG_OMAP as a useful test currently we can make use of CONFIG_ARCH_OMAP2PLUS instead. With that changed we can drop all defines of CONFIG_OMAP. While in here, CONFIG_OMAP3430 is only defined and then never used, so drop. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-11serial: omap: Support debug UARTLokesh Vutla
Add debug UART functions to permit omap specific ns16550 to provide an early debug UART. This is mostly in common with DEBUG_UART_NS16550 except for Mode definition register which is required for selecting UART mode(16x auto-baud or 13x mode). Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-05-10serial: add serial driver for BCM6345Álvaro Fernández Rojas
It is based on linux/drivers/tty/serial/bcm63xx_uart.c Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09serial: atmel_usart: Add clk supportWenyou Yang
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>
2017-05-09serial: atmel_usart: Fix early debug not work in SPLWenyou Yang
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>
2017-04-25Merge git://git.denx.de/u-boot-sunxiTom Rini
2017-04-25sunxi: fix the default value of CONS_INDEX on non-A23/A33 SUN8IIcenowy Zheng
Only A23/A33 in SUN8I want a default value of CONS_INDEX of 5, for other chips the default value is 1 like other Allwinner SoCs. Fix this default value. The original wrong value has lead to wrong console on H3 Orange Pi boards. Fixes: 7095f8641863 ("sunxi: Convert CONS_INDEX to Kconfig") Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-20sunxi: Convert CONS_INDEX to KconfigMylène Josserand
Convert the CONS_INDEX configuration to Kconfig. Update sunxi's defconfigs to remove SYS_EXTRA_OPTIONS variable not needed anymore. Default value is 1 except for sun5i (equals 2) and sun8i (equals 5). Signed-off-by: Mylène Josserand <mylene.josserand@free-electrons.com> [Maxime: Added a depends on ARCH_SUNXI to avoid build breakages] Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-04-18usbtty: avoid potential NULL pointer dereferencexypron.glpk@gmx.de
If current_urb is NULL it should not be dereferenced. The problem was indicated by cppcheck. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-04-13Merge git://git.denx.de/u-boot-dmTom Rini
Here with some DM changes as well as the long-standing AT91 DM/DT conversion patches which I have picked up via dm.
2017-04-13serial: ns16550: Link in the DM driver when when using platdataAlexandru Gagniuc
Do not condition the compilation of the U_BOOT_DRIVER by !OF_PLATDATA. This is inconsistent with the majority of other drivers. This also blocks OF_PLATDATA boards with an 16550-compatible serial from using serial in SPL. Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com> Reviewed-by: Simon Glass <sjg@chromium.org> Added tweak for rock to avoid a TPL build failure: Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-13Fix a bug with PL010s running at 19200 baudAlyssa Rosenzweig
I don't have the hardware test this, but it is almost certainly a typo in the code dating back to at least 2004. Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
2017-04-10serial: Add serial driver for Intel MIDAndy Shevchenko
Add a specific serial driver for Intel MID platforms. It has special fractional divider which can be programmed via UART_PS, UART_MUL, and UART_DIV registers. The UART clock is calculated as UART clock = XTAL * UART_MUL / UART_DIV The baudrate is calculated as baud rate = UART clock / UART_PS / DLAB Initialize fractional divider correctly for Intel Edison platform. For backward compatibility we have to set initial DLAB value to 16 and speed to 115200 baud, where initial frequency is 29491200Hz, and XTAL frequency is 38.4MHz. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2017-04-05dm: serial: Allow driver-model serial to be disabled for TPLSimon Glass
Add separate enable/disable controls for driver-model serial. While this is generally enabled in SPL it may not be in TPL, since serial output can be obtained with the debug UART with minimal code size. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-04-05Blackfin: RemoveTom Rini
The architecture is currently unmaintained, remove. Cc: Benjamin Matthews <mben12@gmail.com> Cc: Chong Huang <chuang@ucrobotics.com> Cc: Dimitar Penev <dpn@switchfin.org> Cc: Haitao Zhang <hzhang@ucrobotics.com> Cc: I-SYST Micromodule <support@i-syst.com> Cc: M.Hasewinkel (MHA) <info@ssv-embedded.de> Cc: Marek Vasut <marex@denx.de> Cc: Martin Strubel <strubel@section5.ch> Cc: Peter Meerwald <devel@bct-electronic.com> Cc: Sonic Zhang <sonic.adi@gmail.com> Cc: Valentin Yakovenkov <yakovenkov@niistt.ru> Cc: Wojtek Skulski <info@skutek.com> Cc: Wojtek Skulski <skulski@pas.rochester.edu> Signed-off-by: Tom Rini <trini@konsulko.com>
2017-03-19Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: configs/bk4r1_defconfig configs/colibri_vf_defconfig configs/pcm052_defconfig include/configs/colibri_vf.h include/configs/pcm052.h
2017-03-19Kconfig: Migrate CONFIG_BAUDRATEPhilipp Tomsich
Move this in to Kconfig with a default of 115200. Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> [trini: Run moveconfig.py, reword commit slightly] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-03-19dm: imx: serial: add i.MX6UL supportSébastien Szymanski
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
2017-03-17Merge git://git.denx.de/u-boot-rockchipTom Rini
This includes support for rk3188 from Heiko Stübner and and rk3328 from Kever Yang. Also included is SPL support for rk3399 and a fix for rk3288 to get it booting again (spl_early_init()).
2017-03-17stm32f7: serial: use clock driver to enable clockVikas Manocha
Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17serial: stm32f7: add device tree supportVikas Manocha
This patch adds device tree support for stm32f7 serial driver & removes serial platform data structure. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-17serial: lpuart: add i.MX7ULP supportPeng Fan
Add i.MX7ULP support. The buadrate calculation on i.MX7ULP is different,so add a new setbrg function for i.MX7ULP. Add a enum lpuart_devtype for runtime check for different platforms. Signed-off-by: Peng Fan <peng.fan@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Cc: York Sun <york.sun@nxp.com> Cc: Shaohui Xie <Shaohui.Xie@nxp.com> Cc: Alison Wang <b18965@freescale.com>
2017-03-17serial: lpuart: restructure lpuart driverPeng Fan
Drop CONFIG_LPUART_32B_REG. Move the register structure to a common file include/fsl_lpuart.h Define lpuart_serial_platdata structure which includes the reg base and flags. For 32Bit register access, use lpuart_read32/lpuart_write32 which handles big/little endian. For 8Bit register access, still use the orignal code. Signed-off-by: Peng Fan <peng.fan@nxp.com> Reviewed-by : Stefano Babic <sbabic@denx.de> Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> Cc: York Sun <york.sun@nxp.com> Cc: Shaohui Xie <Shaohui.Xie@nxp.com> Cc: Alison Wang <b18965@freescale.com>
2017-03-16rockchip: serial: Adapt rockchip of-platdata driver for rk3188Heiko Stübner
Add necessary structs to have the driver also work for the serial on the rk3188. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Kever Yang <kever.yang@rock-chips.com>
2017-03-16Merge tag 'xilinx-for-v2017.05' of git://www.denx.de/git/u-boot-microblazeTom Rini
Xilinx changes for v2017.05 - Move to DM clk driver - Add clk support for zynq_sdhci
2017-03-14STiH410: Add STi serial driverPatrice Chotard
This patch adds support to ASC (asynchronous serial controller) driver, which is basically a standard serial driver. This IP is common across other STMicroelectronics SoCs Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-02-17zynq: Move zynq to clock frameworkStefan Herbrechtsmeier
Move the zynq to clock framework and remove unused functions as well as the CONFIG_ZYNQ_PS_CLK_FREQ configuration. Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-02-08dm: core: Replace of_offset with accessorSimon Glass
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: Simon Glass <sjg@chromium.org>
2017-01-20serial, ns16550: bugfix: ns16550 fifo not enabledHeiko Schocher
commit: 65f83802b7a5b "serial: 16550: Add getfcr accessor" breaks u-boot commandline working with long commands sending to the board. Since the above patch, you have to setup the fcr register. For board/archs which enable OF_PLATDATA, the new field fcr in struct ns16550_platdata is not filled with a default value ... This leads in not setting up the uarts fifo, which ends in problems, when you send long commands to u-boots commandline. Detected this issue with automated tbot tests on am335x based shc board. The error does not popup, if you type commands. You need to copy&paste a long command to u-boots commandshell (or send a long command with tbot) Possible boards/plattforms with problems: ./arch/arm/cpu/arm926ejs/lpc32xx/devices.c ./arch/arm/mach-tegra/board.c ./board/overo/overo.c ./board/quipos/cairo/cairo.c ./board/logicpd/omap3som/omap3logic.c ./board/logicpd/zoom1/zoom1.c ./board/timll/devkit8000/devkit8000.c ./board/lg/sniper/sniper.c ./board/ti/beagle/beagle.c ./drivers/serial/serial_rockchip.c Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Ladislav Michl <ladis@linux-mips.org> Tested-by: Adam Ford <aford173@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-01-14Kconfig: CONFIG_OF_PLATDATA doesn't really existTom Rini
There is no CONFIG_OF_PLATDATA, only CONFIG_SPL_OF_PLATDATA, so rename the two references to CONFIG_OF_PLATDATA to CONFIG_SPL_OF_PLATDATA. Signed-off-by: Tom Rini <trini@konsulko.com>
2016-12-19serial: 16550: Add Ingenic JZ4780 supportMarek Vasut
Add compatibility string for the Ingenic JZ4780 SoC, the necessary UART enable bit into FCR and register shift. Neither are encoded in the DTS coming from Linux, so we need to support it this way. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-19serial: 16550: Add port type as driver dataMarek Vasut
Add driver data to each compatible string to identify the type of the port. Since all the ports in the driver are entirely compatible with 16550 for now, all are marked with PORT_NS16550. But, there are ports which have specific quirks, like the JZ4780 UART, which do not have any DT property to denote the quirks. Instead, Linux uses the compatible string to discern such ports and enable the necessary quirks. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org>
2016-12-19serial: 16550: Add getfcr accessorMarek Vasut
Add function which allows fetching the default FCR register setting from platform data for DM , while retaining old behavior for non-DM by returning UART_FCRVAL. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-16arm: imx: add i.MX53 Beckhoff CX9020 Embedded PCPatrick Bruenn
Add CX9020 board based on mx53loco. Add simplified imx53 base device tree from kernel v4.8-rc8, to reuse serial_mxc with DTE and prepare for device tree migration of other functions and imx53 devices. The CX9020 differs from i.MX53 Quick Start Board by: - use uart2 instead of uart1 - DVI-D connector instead of VGA - no audio - CCAT FPGA connected to emi - enable rtc Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
2016-12-04serial: Drop the s3c24x0 serial driverSimon Glass
This is not used by any boards. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: David Müller <d.mueller@elsoft.ch> Reviewed-by: Jagan Teki <jagan@openedev.com>
2016-11-28serial: bcm283x_mu: support disabling after initializationFabian Vogt
For the Raspberry Pi 3 it needs to be possible to disable the serial device after initialization happens, as only after the GPIO device is available it is known whether the mini uart is usable. Signed-off-by: Fabian Vogt <fvogt@suse.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28serial: pl01x: expose skip_init platdata option in DTFabian Vogt
To be able to represent the skip-init platdata element with OF_CONTROL, it needs to be read from the device tree as well and put into the platform data. Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Fabian Vogt <fvogt@suse.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-28serial: bcm283x_mu: add device tree supportFabian Vogt
This patch adds device tree support for the bcm283x mini-uart driver. Signed-off-by: Fabian Vogt <fvogt@suse.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-11-25Merge git://git.denx.de/u-boot-fsl-qoriqTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: arch/arm/Kconfig
2016-11-23serial: pxa: integrate optional driver model handlingMarcel Ziswiler
Optional driver model handling integration. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Marek Vasut <marex@denx.de>
2016-11-23serial: pxa: use kconfig for serial configurationMarcel Ziswiler
Migrate the PXA serial driver to be configured via Kconfig. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Marek Vasut <marex@denx.de>
2016-11-21lpuart: add a get_lpuart_clk functionShaohui Xie
It's not always true that LPUART clock is CONFIG_SYS_CLK_FREQ. This patch provides a weak function get_lpuart_clk(), so that the clock can be ovreridden on a specific board which uses different clock for LPUART. Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com> [YS: Reformat commit message] Reviewed-by: York Sun <york.sun@nxp.com>
2016-10-28Merge branch 'master' of git://git.denx.de/u-boot-atmelTom Rini
2016-10-28serial: atmel_usart: Support enable an early debug UARTWenyou Yang
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>
2016-10-28serial: Kconfig: Add ATMEL_USART optionWenyou Yang
Add ATMEL_USART option to support to enable the Atmel usart driver from Kconfig. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-10-28Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini
Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: common/Kconfig configs/dms-ba16_defconfig
2016-10-26serial: Kconfig: Add MXC_UART entryJagan Teki
Added kconfig for MXC_UART driver. Cc: Simon Glass <sjg@chromium.org> Cc: Fabio Estevam <fabio.estevam@nxp.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Peng Fan <peng.fan@nxp.com> Cc: Matteo Lisi <matteo.lisi@engicam.com> Cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2016-10-23Convert CONFIG_SYS_STDIO_DEREGISTER to KconfigSimon Glass
This converts the following to Kconfig: CONFIG_SYS_STDIO_DEREGISTER This option should never be enabled in SPL, so use CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) when checking the option. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Re-sync] Signed-off-by: Tom Rini <trini@konsulko.com>
2016-10-08Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini
2016-10-08Revert "ns16650: Make sure we have CONFIG_CLK set before using infrastructure"Masahiro Yamada
This reverts commit 82f5279b0cd99a9163d34cfe926d0316d9dc0d37. The build failure of k2*evm boards was fixed in a different way by the previous commit. It is nasty to patch generic drivers around with #ifdef CONFIG_CLK just for the KeyStone's matter. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
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