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* 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>
* Merge http://git.denx.de/u-boot-samsungTom Rini2016-06-06-3/+16
|\ | | | | | | | | | | | | | | Signed-off-by: Tom Rini <trini@konsulko.com> Conflicts: configs/peach-pi_defconfig configs/peach-pit_defconfig
| * serial: s5p: use clock api to get clock rateThomas Abraham2016-05-25-1/+14
| | | | | | | | | | | | | | | | | | | | On Exynos platforms that support clock driver API, allow the driver to use clock api get the SCLK clock rate. Cc: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
| * serial: s5p: get the port id number from the alias of the device nodeThomas Abraham2016-05-25-2/+2
| | | | | | | | | | | | | | | | | | | | The port id, if not specified in the device node, can be obtained from the alias of the device node listed in the aliases node. Cc: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
* | serial: 16550: Drop OMAP1510 supportMarek Vasut2016-06-02-17/+3
| | | | | | | | | | | | | | | | | | | | The CONFIG_OMAP1510 is no longer defined, so remove this dead code. 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> Acked-by: Nishanth Menon <nm@ti.com>
* | serial: 16550: Make serial_io/out_shift available to debug modeMarek Vasut2016-06-02-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | The ns16550 driver needs serial_in_shift() and serial_out_shift() when compiled in debug UART mode, so shift the DM_SERIAL check a little to make these functions available. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | arm: add initial support for Amlogic Meson and ODROID-C2Beniamino Galvani2016-05-27-0/+178
| | | | | | | | | | | | | | | | | | | | | | | | This adds platform code for the Amlogic Meson GXBaby (S905) SoC and a board definition for ODROID-C2. This initial submission only supports UART and Ethernet (through the existing Designware driver). DTS files are the ones submitted to Linux arm-soc for 4.7 [1]. [1] https://patchwork.ozlabs.org/patch/603583/ Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | dm: ns16550: Don't map_physmem for I/O portsPaul Burton2016-05-26-2/+8
|/ | | | | | | | | | | If the UART is to be accessed using I/O port accessors (inb & outb) then using map_physmem doesn't make sense, since it operates in a different memory space. Remove the call to map_physmem when CONFIG_SYS_NS16550_PORT_MAPPED is defined, allowing I/O port addresses to not be mangled by the incorrect mapping. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* ar933x: serial: Remove the explicit pinctrl settingWills Wang2016-05-21-14/+2
| | | | | | | The correct pinctrl is handled automatically so we don't need to do it in the driver. Signed-off-by: Wills Wang <wills.wang@live.com>
* drivers: serial: add serial driver for ar933x SOCWills Wang2016-05-21-0/+274
| | | | | | | | | This patch add support for ar933x serial. Signed-off-by: Wills Wang <wills.wang@live.com> Reviewed-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* m68k: add DM model serial driverangelo@sysam.it2016-05-17-44/+144
| | | | | | | | Boards can now use DM serial driver, or still legacy mcf uart driver version. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Acked-by: Simon Glass <sjg@chromium.org>
* serial: bcm283x_mu: make pending values more explicitStephen Warren2016-04-18-2/+2
| | | | | | | | | | dm_serial_ops.pending should return the number of characters, not just a valid C Boolean integer value. The existing code does already does this, but only as an accident since BCM283X_MU_LSR_RX_READY happens to be BIT(0). Enhance the code to be more explicit about the values it returns. Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
* arc: get rid of running_on_hwAlexey Brodkin2016-04-11-16/+0
| | | | | | | | ISS is obsolete now and nSIM is used for simulation instead. In its turn nSIM properly handles baud-rate settings so get rid of now useless check. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
* serial: Add support for Qualcomm serial portMateusz Kulikowski2016-04-01-0/+226
| | | | | | | | | This driver works in "new" Data Mover UART mode, so will be compatible with modern Qualcomm chips only. Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* serial: uniphier: use devm_get_addr() to get base addressMasahiro Yamada2016-04-01-3/+5
| | | | | | | | | Currently, fdtdec_get_addr_size() does not support the address translation, so it cannot handle device trees with non-straight "ranges" properties. (This would be a problem with DTS for UniPhier ARMv8 SoCs.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>