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path: root/drivers/watchdog
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2018-09-04watchdog: mx25: use the imx_watchdog driver for mx25Martin Kaiser1-1/+1
The existing imx_watchdog driver is compatible with mx25 chipsets. Add a WDOG1_BASE_ADDR define for the base address and enable the driver in watchdog's Makefile. To use the driver, a board must define CONFIG_IMX_WATCHDOG and CONFIG_HW_WATCHDOG. This fixes an issue when booting an mx25 chip via usb/serial. In this case, the boot rom will always enable the watchdog. If u-boot is running in interactive mode and the watchdog is not serviced, the system is rebooted when the watchdog expires. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-07-19watchdog: cadence: Do not stop wdt in probeMichal Simek1-2/+0
Watchdog can be started before probe and u-boot should just take control over it. That's why do not stop watchdog in probe to cover cases where watchdog can expire before probe and start. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19watchdog: cdns: Add comment for expire_now functionMichal Simek1-0/+1
IP itself has no reg/no bit which can be used for this functionality. Add this note to the driver to make sure that none will be asking for that. Current method is to setup 1s timeout and hang() which is done via wdt_expire_now(). Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19watchdog: Convert Xilinx Axi watchdog driver to driver modelShreenidhi Shedi2-26/+93
Xilinx Axi wdt driver conversion to driver model & Kconfig update for the same. Signed-off-by: Shreenidhi Shedi <yesshedi@gmail.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19watchdog: dm: Support manual relocation for watchdogsMichal Simek1-0/+23
Relocate watchdog ops as was done by: "dm: Add support for all targets which requires MANUAL_RELOC" (sha1: 484fdf5ba058b07be5ca82763aa2b72063540ef3) Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-19watchdog: dm: Change uclass name to watchdog and enable DM_UC_FLAG_SEQ_ALIASMichal Simek1-1/+2
uclass name is used by dev_read_alias_seq which return seq number when aliases are used. Code fragment: 168 int dev_read_alias_seq(struct udevice *dev, int *devnump) 169 { 170 ofnode node = dev_ofnode(dev); 171 const char *uc_name = dev->uclass->uc_drv->name; 172 int ret; 173 174 if (ofnode_is_np(node)) { 175 ret = of_alias_get_id(ofnode_to_np(node), uc_name); Also this patch enables DM_UC_FLAG_SEQ_ALIAS to be in sync with Linux which is also using watchdog name for watchdog aliases. drivers/watchdog/watchdog_core.c:215: ret = of_alias_get_id(wdd->parent->of_node, "watchdog"); 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
2018-06-01watchdog: bcm6345: convert to use live dtÁlvaro Fernández Rojas1-6/+2
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
2018-05-31watchdog: cadence: Use live-tree functionsMichal Simek1-5/+4
Use live-tree functions. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-05-14watchdog: Add support for Armada 37xx CPU watchdogMarek Behún3-0/+185
This adds support for the CPU watchdog found on Marvell Armada 37xx SoCs. There are 4 counters which can be set as CPU watchdog counters. This driver uses the second counter (ID 1, counting from 0) (Marvell's Linux also uses second counter by default). In the future it could be adapted to use other counters, with definition in the device tree. Signed-off-by: Marek Behun <marek.behun@nic.cz> Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-11watchdog: cadence: Show used timeout valueMichal Simek1-2/+2
Debug message was showing timeout value which was passed to start function but there is a checking if this value can be setup. The patch is moving this debug printf function below checking. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini16-33/+16
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>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini5-10/+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>
2018-04-23watchdog: cadence: Remove useless ioremapMichal Simek1-5/+0
There is no need to call ioremap. Also reg pointer is completely unused in the driver. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-06watchdog: Fix Kconfig alignment for WDT_SANDBOXMichal Simek1-3/+3
Fix Kconfig alignment which should be <tab><space><space>. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-06powerpc: mpc8xx: move watchdog into drivers/watchdogChristophe Leroy2-0/+22
In preparation of DM watchdog, move basic actions into drivers/watchdog Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-03-23watchdog: Add Cadence watchdog driverShreenidhi Shedi3-0/+293
This IP can be found on Zynq and ZynqMP devices. The driver was tested with reset-on-timeout; feature. Also adding WATCHDOG symbol to Kconfig because it is required. Signed-off-by: Shreenidhi Shedi <imshedi@gmail.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-16watchdog: omap_wdt: improve watchdog reset pathRuslan Bilovol1-6/+15
Remove busy looping during watchdog reset. Each polling of W_PEND_WTGR bit ("finish posted write") after watchdog reset takes 120-140us on BeagleBone Black board. Current U-Boot code has watchdog resets in random places and often there is situation when watchdog is reset few times in a row in nested functions. This adds extra delays and slows the whole system. Instead of polling W_PEND_WTGR bit, we skip watchdog reset if the bit is set. Anyway, watchdog is in the middle of reset *right now*, so we can just return. This noticeably increases performance of the system. Below are some measurements on BBB: - DFU upload over USB 15% faster - fastboot image upload 3x times faster - USB ep0 transfers with 4k packets 20% faster Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Tested-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Tested-by: Alex Kiernan <alex.kiernan@gmail.com>
2017-08-13wdt: Update uclass to make clear that the timeout is in msAndy Shevchenko1-2/+2
Convert name to show explicitly that we are using milliseconds. For a watchdog timer this is precise enough. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-30watchdog: Introduce watchdog driver for Intel TangierFelipe Balbi3-1/+82
Add watchdog driver for Intel Tangier based platforms. Signed-off-by: Vincent Tinelli <vincent.tinelli@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-07-12orion_wdt: Support for the Orion WatchdogMarek Behún3-0/+185
The Orion watchdog can be found on some Marvell Armada chips. This driver is based on the code by Tomas Hlavacek in the CZ.NIC turris-omnia-uboot repository, which can be found at https://gitlab.labs.nic.cz/turris/turris-omnia-uboot, and that one is based on code by Sylver Bruneau. His code is already in mainline Linux kernel. The code uses the new driver model API. Signed-off-by: Tomas Hlavacek <tomas.hlavacek@nic.cz> Signed-off-by: Marek Behun <marek.behun@nic.cz> create mode 100644 drivers/watchdog/orion_wdt.c Signed-off-by: Stefan Roese <sr@denx.de>
2017-07-07wdt: Unify option of timeout valueAndy Shevchenko1-1/+1
There is no need to duplicate same option with different name. Kill HW_WATCHDOG_TIMEOUT_MS in favor of WATCHDOG_TIMEOUT_MSECS. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-07-07wdt: Fix spelling Resettting -> ResettingAndy Shevchenko1-1/+1
Fix spelling Resettting -> Resetting. No functional change intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-06-01dm: Rename dev_addr..() functionsSimon Glass2-2/+2
These support the flat device tree. We want to use the dev_read_..() prefix for functions that support both flat tree and live tree. So rename the existing functions to avoid confusion. In the end we will have: 1. dev_read_addr...() - works on devices, supports flat/live tree 2. devfdt_get_addr...() - current functions, flat tree only 3. of_get_address() etc. - new functions, live tree only All drivers will be written to use 1. That function will in turn call either 2 or 3 depending on whether the flat or live tree is in use. Note this involves changing some dead code - the imx_lpi2c.c file. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-05-31dm: watchdog: add BCM6345 watchdog driverÁlvaro Fernández Rojas3-0/+119
This driver is a simplified version of linux/drivers/watchdog/bcm63xx_wdt.c Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-15watchdog: Migrate OMAP_WATCHDOG to KconfigTom Rini1-0/+8
Move this entry to Kconfig. As it is a hardware watchdog, select HW_WATCHDOG. While we could default to enabling this for all platforms, it is currently only enabled by default on AM33XX, so keep that logic today. Cc: Roger Meier <r.meier@siemens.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-09bcm2835_wdt: support for the BCM2835/2836 watchdogPaolo Pisati3-0/+48
Signed-off-by: Paolo Pisati <p.pisati@gmail.com>
2017-05-09dm: Update Simple Watchdog uclassMaxim Sloyko1-11/+1
- Remove "probe" function from sandbox wdt driver - Fix include order Fixes: 0753bc2d30d7 ("dm: Simple Watchdog uclass") Signed-off-by: Maxim Sloyko <maxims@google.com> [trini: Create as the delta between v1 (applied) and v2 (should have applied)]. Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-08aspeed: Watchdog Timer Drivermaxims@google.com3-0/+137
This driver supports ast2500 and ast2400 SoCs. Only ast2500 supports reset_mask and thus the option of resettting individual peripherals using WDT. Signed-off-by: Maxim Sloyko <maxims@google.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08dm: Simple Watchdog uclassmaxims@google.com4-1/+169
This is a simple uclass for Watchdog Timers. It has four operations: start, restart, reset, stop. Drivers must implement start, restart and stop operations, while implementing reset is optional: It's default implementation expires watchdog timer in one clock tick. Signed-off-by: Maxim Sloyko <maxims@google.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-04-18drivers: remove Blackfin specific driversMasahiro Yamada2-28/+0
These drivers have no user since commit ea3310e8aafa ("Blackfin: Remove"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
2017-04-08ti: wdt: omap: Disable watchdog timer before performing initializationLukasz Majewski1-15/+22
The OMAP WDT IP block requires to be stopped before any write to its registers is performed. This problem has been thoroughly described in Linux kernel: "watchdog: omap: assert the counter being stopped before reprogramming: SHA1: 530c11d432727c697629ad5f9d00ee8e2864d453 Signed-off-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
2017-03-17wdog: Add the watchdog driver for MX7ULP.Ye Li3-0/+107
This driver implements the HW WATCHDOG functions. Which needs to set CONFIG_HW_WATCHDOG to use them. This is disabled by default for mx7ulp. Use watchdog for reset cpu. Implement this in the driver. Need to define CONFIG_ULP_WATCHDOG to build it. Signed-off-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Ye Li <ye.li@nxp.com> Cc: Stefano Babic <sbabic@denx.de>
2016-10-04imx_watchdog: Do not assert WDOG_B on watchdog initRoss Parker1-1/+1
Currently the driver asserts WDOG_B by clearing WCR_WDA bit when enabling the watchdog. Do not clear WCR_WDA. Signed-off-by: Ross Parker <rossjparker@gmail.com> Cc: Stefano Babic <sbabic@denx.de>
2016-07-19imx_watchdog: add weak attribute to reset_cpu functionStefan Agner1-1/+1
This allows to overwrite reset_cpu function in case a board level reset is preferred (e.g. through PMIC). Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
2016-01-07imx_watchdog: always set minimal timeout in reset_cpuAndrey Skvortsov1-1/+1
The problem is that timeout bits in WCR register were leaved unchanged. So previously set timeout value was applied and therefore 'reset' command takes any value up to two minutes, depending on previous watchdog settings, instead of minimal 0.5 seconds. Signed-off-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
2015-10-12ls102xa: Fix reset hangFabio Estevam1-1/+1
Since commit 623d96e89aca6("imx: wdog: correct wcr register settings") issuing a 'reset' command causes the system to hang. Unlike i.MX and Vybrid, the watchdog controller on LS102x is big-endian. This means that the watchdog on LS1021 has been working by accident as it does not use the big-endian accessors in drivers/watchdog/imx_watchdog.c. Commit 623d96e89aca6("imx: wdog: correct wcr register settings") only revelead the endianness problem on LS102x. In order to fix the reset hang, introduce a reset_cpu() implementation that is specific for ls102x, which accesses the watchdog WCR register in big-endian format. All that is required to reset LS102x is to clear the SRS bit. This approach is a temporary workaround to avoid a regression for LS102x in the 2015.10 release. The proper fix is to make the watchdog driver endian-aware, so that it can work for i.MX, Vybrid and LS102x. Reported-by: Sinan Akman <sinan@writeme.com> Tested-by: Sinan Akman <sinan@writeme.com> Reviewed-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-10-12imx_watchdog: Add a header file for watchdog registersFabio Estevam1-13/+1
Create fsl_wdog.h to store the watchdog registers and bit fields. This can be useful when accesses to the watchdog block are made from other parts, such as arch/arm/ cpu code. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-20imx: wdog: correct wcr register settingsPeng Fan1-1/+2
We should not simple use "writew(WCR_WDE, &wdog->wcr)" to set wcr, since this will override bits set before reset_cpu. Use clrsetbits_le16 instead of writew to fix this issue. Signed-off-by: Peng Fan <Peng.Fan@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-09-13imx: imx7d: add imx-common cpu support for imx7dAdrian Alonso1-1/+1
Add imx-common cpu support for imx7d SoC - Update reset_cause for imx7d - Enable watchdog driver built for imx7d Signed-off-by: Adrian Alonso <aalonso@freescale.com> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
2015-03-25watchdog/imx_watchdog: do not set WCR_WDWSebastian Siewior1-2/+1
with WCR_WDW set, the watchdog won't trigger if we bootet linux and idle around while the watchdog is not triggered. It seems the timer makes progress very slowly if at all. I managed to remain 20minutes alive while the timeout was set to 60secs. It reboots within 60secs if I start a busyloop in userland (something like "while (1) { }"). While I don't see a reason why the WDT should not be running while the CPU is in idle, I'm dropping this bit. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Stefano Babic <sbabic@denx.de>
2015-02-24ARM: remove tnetv107x board supportMasahiro Yamada2-166/+0
This is still a non-generic board. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Chan-Taek Park <c-park@ti.com> Acked-by: Marek Vasut <marex@denx.de>
2015-02-07arm, at91, wdt: make timeout configurableHeiko Schocher1-0/+4
make the HW WDT timeout configurable through the define CONFIG_AT91_HW_WDT_TIMEOUT. Signed-off-by: Heiko Schocher <hs@denx.de>
2014-09-24kconfig: add blank Kconfig filesMasahiro Yamada1-0/+0
This would be useful to start moving various config options. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
2014-09-08arm: ls102xa: Add Freescale LS102xA SoC supportWang Huan1-1/+1
The QorIQ LS1 family is built on Layerscape architecture, the industry's first software-aware, core-agnostic networking architecture to offer unprecedented efficiency and scale. Freescale LS102xA is a set of SoCs combines two ARM Cortex-A7 cores that have been optimized for high reliability and pack the highest level of integration available for sub-3 W embedded communications processors with Layerscape architecture and with a comprehensive enablement model focused on ease of programmability. Signed-off-by: Alison Wang <alison.wang@freescale.com> Signed-off-by: Jason Jin <jason.jin@freescale.com> Signed-off-by: Jingchang Lu <jingchang.lu@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
2014-07-07blackfin: Fix warning about undefined functionVasili Galka1-0/+1
get_sclk() was not defined in bfin_wdt.c, include the corresponding header. Cc: Sonic Zhang <sonic.adi@gmail.com> Signed-off-by: Vasili Galka <vvv444@gmail.com>
2014-07-05watchdog/denali: Adding DesignWare watchdog driver supportChin Liang See2-0/+75
To add the DesignWare watchdog driver support. It required information such as register base address and clock info from configuration header file within include/configs folder. Signed-off-by: Chin Liang See <clsee@altera.com> Cc: Anatolij Gustschin <agust@denx.de> Cc: Albert Aribaud <albert.u.boot@aribaud.net> Cc: Heiko Schocher <hs@denx.de> Cc: Tom Rini <trini@ti.com>
2013-11-09Merge branch 'iu-boot/master' into 'u-boot-arm/master'Albert ARIBAUD1-1/+2
Conflicts: arch/arm/cpu/arm926ejs/mxs/Makefile board/compulab/cm_t35/Makefile board/corscience/tricorder/Makefile board/ppcag/bg0900/Makefile drivers/bootcount/Makefile include/configs/omap4_common.h include/configs/pdnb3.h Makefile conflicts are due to additions/removals of object files on the ARM branch vs KBuild introduction on the main branch. Resolution consists in adjusting the list of object files in the main branch version. This also applies to two files which are not listed as conflicting but had to be modified: board/compulab/common/Makefile board/udoo/Makefile include/configs/omap4_common.h conflicts are due to the OMAP4 conversion to ti_armv7_common.h on the ARM side, and CONFIG_SYS_HZ removal on the main side. Resolution is to convert as this icludes removal of CONFIG_SYS_HZ. include/configs/pdnb3.h is due to a removal on ARM side. Trivial resolution is to remove the file. Note: 'git show' will also list two files just because they are new: include/configs/am335x_igep0033.h include/configs/omap3_igep00x0.h
2013-10-31drivers: convert makefiles to Kbuild styleMasahiro Yamada1-30/+8
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-31imx_watchdog: do not soft-reset while watchdog initAnatolij Gustschin1-1/+2
Currently the driver clears WCR_SRS bit when enabling the watchdog and this causes a software reset. Do not clear WCR_SRS. Signed-off-by: Anatolij Gustschin <agust@denx.de>
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