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path: root/src/soc/mediatek/common/wdt.c
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2023-01-10soc/mediatek/common: Reset the watchdog timer before triggering resetRunyang Chen
When the watchdog timer reaches 0, the timer value won't reset to the default value unless there is an external reset or a kick. It will result in the watchdog failing to trigger the reset signal. We kick the watchdog to reset the timer to the default value. Also, because WDT hardware needs about 94us to synchronize the registers, add a 100us delay before triggering the reset signal. BUG=b:264003005, b:264017048 BRANCH=corsola TEST= Reboot successfully with the following cmd stop daisydog sleep 60 > /dev/watchdog& Signed-off-by: Runyang Chen <runyang.chen@mediatek.corp-partner.google.com> Signed-off-by: Kuan-Hsun Cheng <allen-kh.cheng@mediatek.com> Change-Id: Ic4964103d54910c4a1e675b59c362e93c2213b19 Reviewed-on: https://review.coreboot.org/c/coreboot/+/71754 Reviewed-by: Yidi Lin <yidilin@google.com> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-06-03soc/mediatek: Rename mtk_wdt_preinit() to mtk_wdt_set_req()Rex-BC Chen
To simplify the calling sequence for mtk_wdt_preinit() and we always adjust request setting in mtk_wdt_preinit(), we rename mtk_wdt_preinit() to mtk_wdt_set_req() and call it in mtk_wdt_init(). From this modification, we can also enable thermal hardware reset feature (CB:64676, CB:64675) in MT8192 and MT8195. BUG=none TEST=build pass Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com> Change-Id: I1904ff9387f7677a077068f2c3df923bd642ea3d Reviewed-on: https://review.coreboot.org/c/coreboot/+/64861 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-03-18soc/mediatek: Trigger wdt SW reset when wdt status is not equal to 0Rex-BC Chen
Because we close external signal in kernel driver since MT8195, it's more reasonable to trigger sw reset with exteranl signal again whenever the wdt status is not equal to 0. BUG=none TEST=build pass Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: Ic6128df7eadaebcf7ff8d4c5492e3e0cfbab6e36 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62797 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-03-15soc/mediatek/common: Add halt() after triggering wdt resetRex-BC Chen
It's more reasonable to halt when we trigger watchdog reset because the whole system should be reset afterwards. BUG=b:222217317 TEST=build pass Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I726ba1599841f63b37062f9ce2e04840e4f250bb Reviewed-on: https://review.coreboot.org/c/coreboot/+/62752 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2022-02-11soc/mediatek: Only update required bits when triggering WDT resetRex-BC Chen
To prevent to modify original value of wdt_mode, we use setbits32 to update required bits. BUG=b:218420108 TEST=build pass Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I743c1af3583c18ec8500fc1eb89f31cdbce5317c Reviewed-on: https://review.coreboot.org/c/coreboot/+/61729 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-02-09soc/mediatek/mt8186: Fix issue of clearing watchdog statusRex-BC Chen
The implementation of clearing watchdog status is wrong in CB:58835. The value written to the 'wdt_mode' register should be 'wdt_mode | 0x22000000' instead of 'wdt_status | 0x22000000'. BUG=b:204229208 TEST=check watchdog status is cleared. Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I8c5dbaab2ac43d3867037bc4160aa5af2d79284f Reviewed-on: https://review.coreboot.org/c/coreboot/+/61446 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-11-29soc/mediatek: Flush cache before triggering EC resetRex-BC Chen
There will be no log in cbmem if we trigger ec reset on bootblock stage. Therefore, call dcache_clean_all() before triggering ec reset to flush cache to store logs on cbmem. BUG=b:207743045 TEST=show logs on cbmem Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I1bd900beb4cc84f7121c5fb66907fa73b62517fa Reviewed-on: https://review.coreboot.org/c/coreboot/+/59683 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-11-26soc/mediatek: log watchdog statusRex-BC Chen
Reveal watchdog status value on bootblock stage. BUG=b:207646327 TEST=build pass Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I2c5ad222a41085616565dd5c10b0e967bb64ec63 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59641 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-11-03soc/mediatek: Add an overridable function for WDT clear statusRex-BC Chen
mtk_wdt_clr_status is different for MT8186 and MT8195, so we move this function to soc folder. TEST=build pass BUG=b:202871018 Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: Ia8697ffdca1e2d1443f2259713c4ab6fdf1b1a9e Reviewed-on: https://review.coreboot.org/c/coreboot/+/58834 Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-09-08soc/mediatek: preserve WDT reset reason for debuggingFengquan Chen
1. Disable external output reset signal in first WDT reset to preserve WDT original reset reason for WDT issue in kernel stage. 2. After preserved WDT reset reason, do fully reset again by sending external output reset signal. BUG=b:194025005 TEST=boot to kernel ok and function test pass Signed-off-by: Fengquan Chen <fengquan.chen@mediatek.corp-partner.google.com> Change-Id: I5887a8312f4daab3cbd0a30fea0195670a932e52 Reviewed-on: https://review.coreboot.org/c/coreboot/+/57270 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-04-26soc/mediatek/mt8195: Initialize watchdogYidi Lin
MT8195 requires writing speical value to mode register to clear status register. This value is invalid on other platforms. We can do this safely in the common watchdog driver. Signed-off-by: Yidi Lin <yidi.lin@mediatek.com> Change-Id: Iba5b41f426fc38719bb343a220e0724bff229c79 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52542 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2020-05-11treewide: Remove "this file is part of" linesPatrick Georgi
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-04-05soc/mediatek: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I7c3c75eaf2d7a64e7d833541bcf168b93921a142 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40132 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-03-18soc: Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I4c110f60b764c97fab2a29f6f04680196f156da5 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39610 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2019-12-04Change all clrsetbits_leXX() to clrsetbitsXX()Julius Werner
This patch changes all existing instances of clrsetbits_leXX() to the new endian-independent clrsetbitsXX(), after double-checking that they're all in SoC-specific code operating on CPU registers and not actually trying to make an endian conversion. This patch was created by running sed -i -e 's/\([cs][le][rt]bits\)_le\([136][624]\)/\1\2/g' across the codebase and cleaning up formatting a bit. Change-Id: I7fc3e736e5fe927da8960fdcd2aae607b62b5ff4 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37433 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-03-04device/mmio.h: Add include file for MMIO opsKyösti Mälkki
MMIO operations are arch-agnostic so the include path should not be arch/. Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31691 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-29mediatek: Separate WDT reset function from WDT driverTristan Shieh
Separate WDT reset function from WDT driver, then we can use the common WDT driver and have a board-specific reset function on different boards. In Kukui, we plan to use GPIO HW reset, instead of WDT reset. Add config "MISSING_BOARD_RESET" in Kukui to pass the build for now. BUG=b:80501386 BRANCH=none TEST=emerge-elm coreboot; emerge-kukui coreboot; Change-Id: Ica07fe3a027cd7e9eb6d10202c3ef3ed7bea00c2 Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com> Reviewed-on: https://review.coreboot.org/c/31121 Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-10-22soc/mediatek: Convert to `board_reset()`Nico Huber
Note, MT8183 didn't select HAVE_HARD_RESET before. So it might still need an update. Change-Id: Ic850f2775ada5e6e543ffb92aaa033b9209596f5 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/29051 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
2018-06-21mediatek: Move watchdog timer code to a common directoryTristan Shieh
Move watchdog timer (WDT) code which can be reused into a common directory under soc/mediatek. BUG=b:80501386 BRANCH=none TEST=Boots correctly on Elm Change-Id: Icbeb04f775c3c0fdc18dd198df8591f5c4b6ddce Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com> Reviewed-on: https://review.coreboot.org/27025 Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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