aboutsummaryrefslogtreecommitdiff
path: root/drivers/serial
AgeCommit message (Collapse)AuthorFilesLines
2018-07-26sandbox: Don't disable ctrlc() on sandbox if in raw modeJoe Hershberger1-0/+4
In raw mode, handle ctrl-c as normal. This allows normal ctrl-c behavior such as aborting a command that is timing out without completely terminating the sandbox executable. In [1], Simon disabled this. His reason for it was that it interferes with piping test scripts. Piping should be done in cooked mode, so this change should still not interfere. [1] commit 8969ea3e9f2db04a6b3675 ("sandbox: Disable Ctrl-C") Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-19serial: zynq: Use platdata for storing static data instead of privMichal Simek1-16/+16
Explanation from Simon Glass "Private data is created when the device is probed and freed when the device is removed. Platform data is created when the device is bound, and survives probe/remove cycles. Strictly speaking, platform data should be used to hold the decoded device tree properties. Private data should be used for run-time things the device needs to keep track of." Based on description the driver needs to be switch to use platdata instead of priv. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-09serial: ns16550: Add reset ctrl to driverLey Foon Tan1-0/+8
Add code to reset all reset signals as in serial DT node. A reset property is an optional feature, so do not fail if a reset property is not present. If a reset property is discovered, then use it to deassert, thus bringing the IP out of reset. Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-09serial: Add Actions Semi OWL UART supportManivannan Sadhasivam3-0/+145
This commit adds Actions Semi OWL family UART support. This driver relies on baudrate configured by primary bootloaders. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-23serial: uniphier: set clock rate without clock-frequency propertyMasahiro Yamada1-3/+38
In Linux, the clock rate of the UART is given by the clock driver. If you try to follow that in U-Boot, you would end up with adding more u-boot,dm-pre-reloc properties, and also the clock driver would be too big for SPL, which is used for UniPhier ARMv7 platform. The current solution is to add 'clock-frequency' property to the UART nodes, but it does not exist in the DT files in Linux. I do not want to let DT diverge for U-Boot. Check the SoC compatible and set the clock rate according to it. This will be helpful to sync DT between Linux and U-Boot. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-23serial: uniphier: rename struct uniphier_serial_private_dataMasahiro Yamada1-5/+5
Just for making it shorter. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-06-15serial: zynq: Make zynq_serial_setbrg staticMichal Simek1-1/+1
This function is used only inside this driver that's why should be static. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15serial: zynq: Initialize uart only before relocationMichal Simek1-0/+6
This issue was found when OF_LIVE was enabled that there are scrambled chars on the console like this: Chip ID: zu3eg Watchdog: Started��j� sdhci@ff160000: 0, sdhci@ff170000: 1 In: serial@ff010000 I found a solution for this problem exactly the same as I found later in serial_msm fixed by: "serial: serial_msm: initialize uart only before relocation" (sha1: 7e5ad796bcd65772a87da236ae21cd536ae3a4d2) What it is happening is that output TX fifo still contains chars to be sent and _uart_zynq_serial_init() resets TX fifo even in the middle of transfer. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15serial: zynq: Write chars till output fifo is fullMichal Simek1-2/+2
Change logic and put char to fifo till there is a space in output fifo. Origin logic was that output fifo needs to be empty. It means only one char was in output queue. Also remove unused ZYNQ_UART_SR_TXEMPTY macro. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-15serial: zynq: Use BIT macros instead of shifts and full hex numbersMichal Simek1-8/+8
Coding style is checking to use BIT macros instead of shifts. The patch is also fixing the rest of macros which should be BITs instead of hex numbers. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-01Merge branch 'master' of git://git.denx.de/u-boot-mipsTom Rini1-6/+2
2018-06-01serial: bcm6345: convert to use live dtÁlvaro Fernández Rojas1-6/+2
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-05-31serial: zynq: Use live-tree functionsMichal Simek1-1/+3
Use live-tree functions. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26serial: stm32: Add setparity supportPatrick Delaunay2-2/+51
Add possibility to update the serial parity used. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-26serial: stm32: Fix bits defines namePatrice Chotard2-10/+10
Rename USART_ISR_FLAG_xxx bits to USART_ISR_xxx bits and USART_ICR_OREF to USART_ICR_ORECF in order to match datasheets. Sort defines by descendant order. Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26serial: stm32: Add debug uart supportPatrick Delaunay2-22/+92
Add support for early debug printf, before the availability of driver model and device tree support. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26serial: serial_msm: added pinmux & configRamon Fried1-6/+18
Serial port configuration was missing from previous implementation. It only worked because it was preconfigured by LK. This patch configures the uart for 115200 8N1. It also configures the pin mux for uart pins using DT bindings. Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
2018-05-26serial: serial_msm: initialize uart only before relocationRamon Fried1-0/+4
The uart is already initialized prior to relocation, reinitialization after relocation is unnecessary. Signed-off-by: Ramon Fried <ramon.fried@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-26serial: serial_msm: fail probe if settings clocks failsRamon Fried1-2/+4
Failure to set the clocks will causes data abort exception when trying to write to AHB uart registers. This patch ensures that we don't touch these registers if clock setting failed. Signed-off-by: Ramon Fried <ramon.fried@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-24serial/serial_arc: Implement debug serialAlexey Brodkin2-0/+35
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-05-24serial: Convert ARC_SERIAL to KconfigAlexey Brodkin1-0/+7
One step closer to completely Kconfig-driven target configuration in U-Boot :) Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-05-11arm: zynqmp: Add ZynqMP minimal R5 supportMichal Simek1-1/+1
Xilinx ZynqMP also contains dual Cortex R5 which can run U-Boot. This patch is adding minimal support to get U-Boot boot. U-Boot on R5 runs out of DDR with default configuration that's why DDR needs to be partitioned if there is something else running on arm64. Console is done via Cadence uart driver and the first Cadence Triple Timer Counter is used for time. This configuration with uart1 was tested on zcu100-revC. U-Boot 2018.05-rc2-00021-gd058a08d907d (Apr 18 2018 - 14:11:27 +0200) Model: Xilinx ZynqMP R5 DRAM: 512 MiB WARNING: Caches not enabled MMC: In: serial@ff010000 Out: serial@ff010000 Err: serial@ff010000 Net: Net Initialization Skipped No ethernet found. ZynqMP r5> There are two ways how to run this on ZynqMP. 1. Run from ZynqMP arm64 tftpb 20000000 u-boot-r5.elf setenv autostart no && bootelf -p 20000000 cpu 4 disable && cpu 4 release 10000000 lockstep or cpu 4 disable && cpu 4 release 10000000 split 2. Load via jtag when directly to R5 Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11serial: zynq: Remove header depedency on arm header structureMichal Simek1-1/+0
There is no need to have arm hardware header in this driver. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-07arm: v7: Kconfig: Rename CPU_V7 as CPU_V7ALokesh Vutla1-1/+1
Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under armv7 folder. This led to a misconception of creating separate folders for armv7m and armv7r. There is no reason to create separate folder for other armv7 based architectures when it can co-exist with few Kconfig symbols. As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and can co exist in the same folder. Reviewed-by: Tom Rini <trini@konsulko.com> Tested-by: Michal Simek <michal.simek@xilinx.com> Suggested-by: Alexander Graf <agraf@suse.de> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini41-83/+41
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-28serial: serial_stm32: Rename status register flagsPatrice Chotard2-8/+8
Uart status register is named USART_ISR on STM32F7, STM32H7 and STM32MP1 SoCs family, but USART_SR only on STM32F4 SoCs. Use USART_ISR_ prefix instead of USART_SR_ . Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-04-28serial: serial_stm32: Enable overrunPatrice Chotard2-8/+15
Enable uart overrun feature which allows to benefits of uart FIFO usage. Previously overrun management was disabled, this has to effect to bypassed the uart FIFO usage even if FIFO was enabled. In particular configuration, for example when video console is enabled, copy/pasting a long command line in console results in corruption. This is due to the fact that a lot of time is consumed in flushing the cache during frame buffer update, so uart chars are not read fast enough. By using uart FIFO and managing overrun, long command line can by copy/paste in console without being corrupted. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-04-28serial: Migrate CONFIG_FSL_LINFLEXUART to KconfigTuomas Tynkkynen2-4/+7
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini6-12/+0
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-16serial: Remove duplicated line in MakefilePatrice Chotard1-1/+0
The line "-obj-$(CONFIG_STM32_SERIAL) += serial_stm32.o" is found twice in Makefile. Fixes: ae74de0dfd45 ("serial: stm32: Rename serial_stm32x7.c to serial_stm32.c" Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Vikas Manocha <vikas.manocha@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-13serial: sh: Add SCIFA0 address entryMarek Vasut1-0/+2
Add the SCIFA0 address entry so it can be used in TPL if needed due to size restrictions. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-11serial: Fix Makefile during SPL and TPL buildMarek Vasut1-2/+18
This patch fixes a situation where CONFIG_DM_SERIAL is enabled for regular U-Boot and SPL, but not for TPL. In that case, the build will try to include serial-uclass into the TPL nonetheless, because CONFIG_DM_SERIAL is set. The solution is to check if the build is for SPL or TPL and in that case, check if CONFIG_$(SPL_TPL_)DM_SERIAL is also set. Only in that case, include serial-uclass.c . If the build is for regular U-Boot, CONFIG_BUILD is not set, so only check if CONFIG_DM_SERIAL is set and if so, include serial-uclass.c Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Simon Glass <sjg@chromium.org> Cc: Tom Rini <trini@konsulko.com>
2018-04-10serial: meson: Update compatible with new Linux bindingsNeil Armstrong1-0/+1
The Amlogic Meson SoCs serial bindings were not written when serial support was pushed into Linux and U-Boot. A clean bindings document has been merged into Linux tree to correctly handle the multiple clocks feeding the serial peripheral. This update the U-Boot serial_meson driver with the new compatible string for Amlogic Meson GX Socs. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-06drivers: serial: remove nonexisting initialisation functionsChristophe Leroy1-64/+0
This patch removes call of serial initialisation functions that are not implemented anymore. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06powercp: mpc8xx: move commproc.hChristophe Leroy1-1/+1
include/commproc.h is dedicated to the 8xx, rename it cpm_8xx.h and move it into arch/powerpc/include/asm Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06powerpc: mpc8xx: Change CONFIG_8xx to CONFIG_MPC8xxChristophe Leroy1-1/+1
CONFIG_8xx doesn't mean much outside of arch/powerpc/ This patch renames it CONFIG_MPC8xx just like CONFIG_MPC85xx etc ... It also renames 8xx_immap.h to immap_8xx.h to be consistent with other file names. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-03-19arm: stm32: add new architecture for STM32MP familyPatrick Delaunay1-3/+3
- add new arch stm32mp for STM32 MPU/Soc based on Cortex A - support for stm32mp157 SOC - SPL is used as first boot stage loader - using driver model for all the drivers, even in SPL - all security feature are deactivated (ETZC and TZC) - reused STM32 MCU drivers when it is possible Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-16Convert all of CONFIG_CONS_INDEX to KconfigTom Rini1-8/+40
This converts the following to Kconfig: CONFIG_CONS_INDEX We have existing entries for this option in a number of places, with different guards on them. They're also sometimes used for things not directly inside of the serial driver. First, introduce a new symbol to guard the use of CONFIG_CONS_INDEX, so that in the case where we don't need this for the serial driver, but for some other use, we can still do it. Next, consolidate all of these into the single entry in drivers/serial/Kconfig. Finally, introduce CONS_INDEX_[023456] so that we can imply a correct value here to make the defconfig side of this smaller. Signed-off-by: Adam Ford <aford173@gmail.com> [trini: Rework a lot of the logic here, such that I took authorship from Adam, but kept his S-o-B line] Signed-off-by: Tom Rini <trini@konsulko.com>
2018-03-09bcm283x_pl011: Flush RX queue after setting baud rateAlexander Graf3-7/+35
After the UART was initialized, we may still have bogus data in the RX queue if it was enabled with incorrect pin muxing before. So let's flush the RX queue whenever we initialize baud rates. This fixes a regression with the dynamic pinmuxing code when enable_uart=1 is not set in config.txt on Raspberry Pis that use pl011 for serial. Fixes: caf2233b28 ("bcm283x: Add pinctrl driver") Reported-by: Göran Lundberg <goran@lundberg.email> Reported-by: Peter Robinson <pbrobinson@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Tested-by: Peter Robinson <pbrobinson@gmail.com> Tested-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-03-09serial_bcm283x_mu: Flush RX queue after setting baud rateAlexander Graf1-1/+7
After the UART was initialized, we may still have bogus data in the RX queue if it was enabled with incorrect pin muxing before. So let's flush the RX queue whenever we initialize baud rates. This fixes a regression with the dynamic pinmuxing code when enable_uart=1 is not set in config.txt. Fixes: caf2233b28 ("bcm283x: Add pinctrl driver") Reported-by: Göran Lundberg <goran@lundberg.email> Reported-by: Peter Robinson <pbrobinson@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de> Tested-by: Peter Robinson <pbrobinson@gmail.com> Tested-by: Tuomas Tynkkynen <tuomas@tuxera.com>
2018-02-23ns16550: Fix mem mapped endian checkBernhard Messerklinger1-2/+2
Do a explicit check for CONFIG_SYS_BIG_ENDIAN and CONFIG_SYS_LITTLE_ENDIAN to avoid errors on platforms where both are undefined (x86). Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com> Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-02-16serial: Replace CONFIG_ with CONFIG_IS_ENABLEDMarek Vasut1-2/+2
Cosmetic change, replace CONFIG_* with CONFIG_IS_ENABLED(*) . Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-01-29serial: Make full device search optionalAlexander Graf2-0/+25
Commit 608b0c4ad4e5ec0c ("serial: Use next serial device if probing fails") added code to search for more serial devices if the default one was not probed correctly. Unfortunately, that breaks omap3_evm. So while investigating why that is the case, let's disable the full search for everyone but bcm283x where it is needed. Fixes: 608b0c4ad4e5ec0c ("serial: Use next serial device if probing fails") Reported-by: Derald D. Woods <woods.technical@gmail.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28bcm2835_pl011_serial: Add BCM2835 specific serial driverAlexander Graf5-9/+100
On bcm2835 we need to ensure we only access serial devices that are muxed to the serial output pins of the pin header. To achieve this for the pl011 device, add a bcm2835 specific pl011 wrapper device that does this check but otherwise behaves like a pl011 device. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28bcm2835_mu_serial: Convert to KconfigAlexander Graf1-0/+7
Setting config options using headers is deprecated. This patch converts the BCM2835 Mini-UART to Kconfig. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28pl01x: Convert CONFIG_PL01X_SERIAL to KconfigAlexander Graf1-0/+6
We want to use Kconfig logic to depend on whether pl01x devices are built in, so let's convert their inclusion selection to Kconfig. This round goes to pl01x. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28pl011: Convert CONFIG_PL011_SERIAL to KconfigAlexander Graf1-0/+6
We want to use Kconfig logic to depend on whether pl01x devices are built in, so let's convert their inclusion selection to Kconfig. This round goes to pl011. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28pl010: Convert CONFIG_PL010_SERIAL to KconfigAlexander Graf1-0/+6
We want to use Kconfig logic to depend on whether pl01x devices are built in, so let's convert their inclusion selection to Kconfig. This round goes to pl010. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28pl01x: Convert to dev_readAlexander Graf1-5/+3
The fdtdec API is deprecated, convert the pl010 and pl011 devices to use the dev_read API instead. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-28serial_bcm283x_mu: Fail loading if not muxedAlexander Graf1-0/+28
The bcm283x mini-uart is only really usable as U-Boot serial output when it is muxed to the UART pins of the RPi pin header. So fail probing in case it is not muxed correctly, as in that case firmware did not initialize it properly either. Signed-off-by: Alexander Graf <agraf@suse.de>
generated by cgit v1.1 at 2024-07-14 11:30:07 +0000