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* serial, ns16550: bugfix: ns16550 fifo not enabledHeiko Schocher2017-01-20-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Kconfig: CONFIG_OF_PLATDATA doesn't really existTom Rini2017-01-14-1/+1
| | | | | | | 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>
* serial: 16550: Add Ingenic JZ4780 supportMarek Vasut2016-12-19-0/+5
| | | | | | | | | | | | | 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>
* serial: 16550: Add port type as driver dataMarek Vasut2016-12-19-10/+16
| | | | | | | | | | | | | | 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>
* serial: 16550: Add getfcr accessorMarek Vasut2016-12-19-2/+16
| | | | | | | | | | | 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>
* arm: imx: add i.MX53 Beckhoff CX9020 Embedded PCPatrick Bruenn2016-12-16-1/+1
| | | | | | | | | | | | | | | | 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>
* serial: Drop the s3c24x0 serial driverSimon Glass2016-12-04-209/+0
| | | | | | | | 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>
* serial: bcm283x_mu: support disabling after initializationFabian Vogt2016-11-28-2/+16
| | | | | | | | | 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>
* serial: pl01x: expose skip_init platdata option in DTFabian Vogt2016-11-28-0/+2
| | | | | | | | | 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>
* serial: bcm283x_mu: add device tree supportFabian Vogt2016-11-28-0/+28
| | | | | | | 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>
* Merge git://git.denx.de/u-boot-fsl-qoriqTom Rini2016-11-25-1/+6
|\ | | | | | | | | | | | | Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: arch/arm/Kconfig
| * lpuart: add a get_lpuart_clk functionShaohui Xie2016-11-21-1/+6
| | | | | | | | | | | | | | | | | | | | | | 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>
* | serial: pxa: integrate optional driver model handlingMarcel Ziswiler2016-11-23-70/+113
| | | | | | | | | | | | | | Optional driver model handling integration. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Marek Vasut <marex@denx.de>
* | serial: pxa: use kconfig for serial configurationMarcel Ziswiler2016-11-23-0/+6
|/ | | | | | | 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>
* Merge branch 'master' of git://git.denx.de/u-boot-atmelTom Rini2016-10-28-0/+36
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| * serial: atmel_usart: Support enable an early debug UARTWenyou Yang2016-10-28-0/+29
| | | | | | | | | | | | | | | | 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>
| * serial: Kconfig: Add ATMEL_USART optionWenyou Yang2016-10-28-0/+7
| | | | | | | | | | | | | | | | 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>
* | Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2016-10-28-0/+7
|\ \ | |/ |/| | | | | | | | | | | Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: common/Kconfig configs/dms-ba16_defconfig
| * serial: Kconfig: Add MXC_UART entryJagan Teki2016-10-26-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | Convert CONFIG_SYS_STDIO_DEREGISTER to KconfigSimon Glass2016-10-23-1/+1
|/ | | | | | | | | | | | 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>
* Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2016-10-08-2/+30
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| * dm: imx: serial: support device treeStefan Agner2016-10-07-2/+30
| | | | | | | | | | | | | | | | Support instatiation through device tree. Also parse the fsl,dte-mode property to determine whether DTE mode shall be used. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | Revert "ns16650: Make sure we have CONFIG_CLK set before using infrastructure"Masahiro Yamada2016-10-08-5/+2
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | serial: ns16550: Handle -ENOENT when requesting clockAlexandre Courbot2016-10-06-1/+1
|/ | | | | | | | | When calling clk_get_by_index(), fall back to the legacy method of getting the clock if -ENOENT is returned. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com>
* serial: Add serial_mvebu_a3700 for Armada 3700 SoCStefan Roese2016-09-27-0/+191
| | | | | | | | | | | | | | | | | The Armada 3700's UART is a simple serial port. It has a 32 bytes Tx FIFO and a 64 bytes Rx FIFO integrated. This patch adds support for this UART including the DEBUG UART functions for very early debug output. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Nadav Haklai <nadavh@marvell.com> Cc: Kostya Porotchkin <kostap@marvell.com> Cc: Wilson Ding <dingwei@marvell.com> Cc: Victor Gu <xigu@marvell.com> Cc: Hua Jing <jinghua@marvell.com> Cc: Terry Zhou <bjzhou@marvell.com> Cc: Hanna Hawa <hannah@marvell.com> Cc: Haim Boot <hayim@marvell.com>
* treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada2016-09-23-1/+1
| | | | | | | | | | | Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
* ns16650: Make sure we have CONFIG_CLK set before using infrastructureTom Rini2016-09-22-2/+5
| | | | | | | We cannot call on the CONFIG_CLK based clk_get_rate function unless CONFIG_CLK is set. Signed-off-by: Tom Rini <trini@konsulko.com>
* serial: ns16550: Support clocks via phandlePaul Burton2016-09-21-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously ns16550 compatible UARTs probed via device tree have needed their device tree nodes to contain a clock-frequency property. An alternative to this commonly used with Linux is to reference a clock via a phandle. This patch allows U-Boot to support that, retrieving the clock frequency by probing the appropriate clock device. For example, a system might choose to provide the UART base clock as a reference to a clock common to multiple devices: sys_clk: clock { compatible = "fixed-clock"; #clock-cells = <0>; clock-frequency = <10000000>; }; uart0: uart@10000000 { compatible = "ns16550a"; reg = <0x10000000 0x1000>; clocks = <&sys_clk>; }; uart1: uart@10000000 { compatible = "ns16550a"; reg = <0x10001000 0x1000>; clocks = <&sys_clk>; }; This removes the need for the frequency information to be duplicated in multiple nodes and allows the device tree to be more descriptive of the system. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* serial: bcm283x_mu: Detect disabled serial deviceAlexander Graf2016-09-06-0/+3
| | | | | | | | | | | | | | | | | | | | On the raspberry pi, you can disable the serial port to gain dynamic frequency scaling which can get handy at times. However, in such a configuration the serial controller gets its rx queue filled up with zero bytes which then happily get transmitted on to whoever calls getc() today. This patch adds detection logic for that case by checking whether the RX pin is mapped to GPIO15 and disables the mini uart if it is not mapped properly. That way we can leave the driver enabled in the tree and can determine during runtime whether serial is usable or not, having a single binary that allows for uart and non-uart operation. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Reviewed-by: Simon Glass <sjg@chromium.org>
* ARM: uniphier: change UNIPHIER_SERIAL to default y optionMasahiro Yamada2016-08-28-0/+1
| | | | | | | This is very likely to be necessary for normal use cases. Set its default to 'y' for shorter defconfig files. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* Merge branch 'rmobile' of git://git.denx.de/u-boot-shTom Rini2016-08-20-4/+5
|\ | | | | | | | | [trini: Drop CMD_BOOTI as it's now on by default on ARM64] Signed-off-by: Tom Rini <trini@konsulko.com>
| * arm: rmobile: Add BLANCHE board supportmasakazu.mochizuki.wd@hitachi.com2016-08-17-5/+5
| | | | | | | | | | | | | | | | | | | | BLANCHE is development board based on R-Car V2H SoC (R8A7792) This commit supports the following periherals: - SCIF, Ethernet, QSPI, MMC Signed-off-by: Masakazu Mochizuki <masakazu.mochizuki.wd@hitachi.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
| * serial: sh: Add support R8A7795Hiroyuki Yokoyama2016-08-17-1/+2
| | | | | | | | | | | | | | This can be used in the same way as other R-CAR serial setting. Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* | Merge branch 'master' of git://www.denx.de/git/u-boot-imxTom Rini2016-07-28-1/+7
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| * | serial_mxc: Remove unconditional DCE settingBreno Lima2016-07-21-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 83fd908f28c ("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: Breno Lima <breno.lima@nxp.com> Acked-by: Stefan Agner <stefan.agner@toradex.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
| * | dm: imx: serial: Support DTE mode when using driver modelStefan Agner2016-07-19-1/+8
| |/ | | | | | | | | | | | | | | | | | | 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: Stefan Agner <stefan.agner@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | ARM: uniphier: use (devm_)ioremap() instead of map_sysmem()Masahiro Yamada2016-07-24-11/+4
| | | | | | | | | | | | | | | | This does not have much impact on behavior, but makes code look more more like Linux. The use of devm_ioremap() often helps to delete .remove callbacks entirely. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* | serial: zynq: Read information about clock from DTMichal Simek2016-07-22-1/+27
| | | | | | | | | | | | | | | | Read information about clock frequency from DT. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Moritz Fischer <moritz.fischer@ettus.com>
* | Merge branch 'master' of git://git.denx.de/u-boot-shTom Rini2016-07-21-0/+31
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| * | serial_sh: Add standrad SCI (w/o FIFO) supportYoshinori Sato2016-07-09-0/+3
| | | | | | | | | | | | | | | | | | | | | Add support for standard type SCI (without FIFO) port. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
| * | serial_sh: Device Tree supportYoshinori Sato2016-07-09-0/+28
| |/ | | | | | | | | | | | | Add Device Tree bindings. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* | Merge git://git.denx.de/u-boot-dmTom Rini2016-07-15-2/+67
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| * | rockchip: serial: Add an of-platdata driver for rockchipSimon Glass2016-07-14-0/+55
| | | | | | | | | | | | | | | | | | | | | Add a driver that works with of-platdata. It sets up the platform data and calls the standard ns16550 driver. Signed-off-by: Simon Glass <sjg@chromium.org>
| * | dm: serial: ns16550: Update to support of-platdataSimon Glass2016-07-14-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | With of-platdata this driver cannot know the format of the of-platdata struct, so we cannot use generic code for accessing the of-platdata. Each SoC that uses this driver will need to set up ns16550's platdata for it. So don't compile in the generic code. Signed-off-by: Simon Glass <sjg@chromium.org>
| * | dm: serial: Add support for of-platdataSimon Glass2016-07-14-1/+7
| | | | | | | | | | | | | | | | | | | | | When this feature is enabled, we cannot access the device tree to find out which serial device to use. Just use the first serial driver we find. Signed-off-by: Simon Glass <sjg@chromium.org>
| * | sandbox: serial: Don't sync video in SPLSimon Glass2016-07-14-0/+2
| |/ | | | | | | | | | | | | SPL does not support an LCD display so there is no need to sync the video when there is serial output. Signed-off-by: Simon Glass <sjg@chromium.org>
* | stm32: clk: Add 200MHz clock configuration for stm32f746 discovery boardToshifumi NISHINAGA2016-07-14-1/+15
|/ | | | | | | | | This patch adds 200MHz clock configuration for stm32f746 discovery board. This patch is based on STM32F4 and emcraft's[1]. [1]: https://github.com/EmcraftSystems/u-boot Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
* clk: convert API to match reset/mailbox styleStephen Warren2016-06-19-9/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following changes are made to the clock API: * The concept of "clocks" and "peripheral clocks" are unified; each clock provider now implements a single set of clocks. This provides a simpler conceptual interface to clients, and better aligns with device tree clock bindings. * Clocks are now identified with a single "struct clk", rather than requiring clients to store the clock provider device and clock identity values separately. For simple clock consumers, this isolates clients from internal details of the clock API. * clk.h is split so it only contains the client/consumer API, whereas clk-uclass.h contains the provider API. This aligns with the recently added reset and mailbox APIs. * clk_ops .of_xlate(), .request(), and .free() are added so providers can customize these operations if needed. This also aligns with the recently added reset and mailbox APIs. * clk_disable() is added. * All users of the current clock APIs are updated. * Sandbox clock tests are updated to exercise clock lookup via DT, and clock enable/disable. * rkclk_get_clk() is removed and replaced with standard APIs. Buildman shows no clock-related errors for any board for which buildman can download a toolchain. test/py passes for sandbox (which invokes the dm clk test amongst others). Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
* serial: Introduce linflex uart supportStoica Cosmin-Stefan2016-06-13-0/+224
| | | | | | | | | | | | | The Linflex module is integrated on some NXP automotive SoCs part of the former Freescale portfolio, like S32V234, an SoC for Advanced Driver Assistance Systems. Original-signed-off-by: Stoica Cosmin-Stefan <cosminstefan.stoica@freescale.com> Original-signed-off-by: Chircu Bogdan <Bogdan.Chircu@freescale.com> Original-signed-off-by: Depons Eric <eric.depons@freescale.com> Original-signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com> Signed-off-by: Eddy Petrișor <eddy.petrisor@gmail.com>
* serial: atmel_usart: Add device tree supportWenyou Yang2016-06-12-0/+19
| | | | | | | | 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>
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