9b8bc514a0
This watchdog driver applies to the following mcf families: - mcf52x2 (5271 5275 5282) - mcf532x (5329 5373) - mcf523x (5235) Cpu's not listed for each family does not have WDT module. Note, after some attempts testing by qemu on 5208 i finally abandoned, watchdog seems not implemented properly. The driver has been tested in a real M5282EVM. Signed-off-by: Angelo Dureghello <angelo@kernel-space.org> --- Changes for v2: - remove unnecessary hardcoded timeouts - remove unnecessary hw_watchdog_xxx stuff - rewrite wdog module reg calculation - using IS_ENABLED() where possible Changes for v3: - remove hardcoded 4s test
410 lines
12 KiB
Plaintext
410 lines
12 KiB
Plaintext
menu "Watchdog Timer Support"
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config WATCHDOG
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bool "Enable U-Boot watchdog reset"
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depends on !HW_WATCHDOG
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select CYCLIC
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help
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This option enables U-Boot watchdog support where U-Boot is using
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watchdog_reset function to service watchdog device in U-Boot. Enable
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this option if you want to service enabled watchdog by U-Boot. Disable
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this option if you want U-Boot to start watchdog but never service it.
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config WATCHDOG_AUTOSTART
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bool "Automatically start watchdog timer"
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depends on WDT
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default n if ARCH_SUNXI
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default y
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help
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Automatically start watchdog timer and start servicing it during
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init phase. Enabled by default. Disable this option if you want
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to compile U-Boot with CONFIG_WDT support but do not want to
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activate watchdog, like when CONFIG_WDT option is disabled. You
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would be able to start watchdog manually by 'wdt' command. Useful
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when you want to have support for 'wdt' command but do not want
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to have watchdog enabled by default.
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config WATCHDOG_TIMEOUT_MSECS
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int "Watchdog timeout in msec"
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default 128000 if ARCH_MX31 || ARCH_MX5 || ARCH_MX6
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default 128000 if ARCH_MX7 || ARCH_VF610
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default 30000 if ARCH_SOCFPGA
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default 16000 if ARCH_SUNXI
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default 5376 if ULP_WATCHDOG
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default 15000 if ARCH_BCM283X
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default 60000
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help
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Watchdog timeout in msec
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config HW_WATCHDOG
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bool
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config IMX_WATCHDOG
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bool "Enable Watchdog Timer support for IMX and LSCH2 of NXP"
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select HW_WATCHDOG if !WDT
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help
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Select this to enable the IMX and LSCH2 of Layerscape watchdog
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driver.
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config WATCHDOG_RESET_DISABLE
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bool "Disable reset watchdog"
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depends on IMX_WATCHDOG
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help
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Disable reset watchdog, which can let WATCHDOG_RESET invalid, so
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that the watchdog will not be fed in u-boot.
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config OMAP_WATCHDOG
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bool "TI OMAP watchdog driver"
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depends on ARCH_OMAP2PLUS
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select HW_WATCHDOG
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help
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Say Y here to enable the OMAP3+ watchdog driver.
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config ULP_WATCHDOG
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bool "i.MX7ULP watchdog"
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help
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Say Y here to enable i.MX7ULP watchdog driver.
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config DESIGNWARE_WATCHDOG
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bool "Designware watchdog timer support"
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depends on WDT
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default y if ROCKCHIP_RK3399
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help
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Enable this to support Designware Watchdog Timer IP, present e.g.
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on Altera SoCFPGA SoCs.
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config WDT
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bool "Enable driver model for watchdog timer drivers"
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depends on DM
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imply WATCHDOG
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select CYCLIC
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help
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Enable driver model for watchdog timer. At the moment the API
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is very simple and only supports four operations:
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start, stop, reset and expire_now (expire immediately).
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What exactly happens when the timer expires is up to a particular
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device/driver.
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config WDT_APPLE
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bool "Apple watchdog timer support"
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depends on WDT
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default y if ARCH_APPLE
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help
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Enable support for the watchdog timer on Apple SoCs.
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The watchdog will perform a full SoC reset resulting in a
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reboot of the entire system.
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config WDT_ARMADA_37XX
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bool "Marvell Armada 37xx watchdog timer support"
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depends on WDT && ARMADA_3700
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help
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Enable this to support Watchdog Timer on Marvell Armada 37xx SoC.
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There are 4 possible clocks which can be used on these SoCs. This
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driver uses the second clock (ID 1), assuming that so will also
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Linux's driver.
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config WDT_ASPEED
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bool "Aspeed ast2400/ast2500 watchdog timer support"
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depends on WDT
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default y if ARCH_ASPEED
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help
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Select this to enable watchdog timer for Aspeed ast2500/ast2400 devices.
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The watchdog timer is stopped when initialized. It performs reset, either
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full SoC reset or CPU or just some peripherals, based on the flags.
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It currently does not support Boot Flash Addressing Mode Detection or
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Second Boot.
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config WDT_AST2600
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bool "Aspeed AST2600 watchdog timer support"
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depends on WDT
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default y if ASPEED_AST2600
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help
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Select this to enable watchdog timer for Aspeed ast2500/ast2400 devices.
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The watchdog timer is stopped when initialized. It performs reset, either
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full SoC reset or CPU or just some peripherals, based on the flags.
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config WDT_AT91
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bool "AT91 watchdog timer support"
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depends on WDT
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help
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Select this to enable Microchip watchdog timer, which can be found on
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some AT91 devices.
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config WDT_BCM6345
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bool "BCM6345 watchdog timer support"
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depends on WDT && (ARCH_BMIPS || BCM6856 || \
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BCM6858 || BCM63158 || BCM6855)
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help
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Select this to enable watchdog timer for BCM6345 SoCs.
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The watchdog timer is stopped when initialized.
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It performs full SoC reset.
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config WDT_BOOKE
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bool "PowerPC Book-E watchdog driver"
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depends on WDT && MPC85xx
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help
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Watchdog driver for PowerPC Book-E chips, such as the Freescale
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MPC85xx SOCs and the IBM PowerPC 440.
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config WDT_CDNS
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bool "Cadence watchdog timer support"
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depends on WDT
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imply WATCHDOG
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help
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Select this to enable Cadence watchdog timer, which can be found on some
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Xilinx Microzed Platform.
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config WDT_CORTINA
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bool "Cortina Access CAxxxx watchdog timer support"
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depends on WDT
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help
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Cortina Access CAxxxx watchdog timer support.
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This driver support all CPU ISAs supported by Cortina
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Access CAxxxx SoCs.
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config WDT_GPIO
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bool "External gpio watchdog support"
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depends on WDT
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depends on DM_GPIO
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help
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Support for external watchdog fed by toggling a gpio. See
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doc/device-tree-bindings/watchdog/gpio-wdt.txt for
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information on how to describe the watchdog in device tree.
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config WDT_MAX6370
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bool "MAX6370 watchdog timer support"
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depends on WDT
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select DM_GPIO
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help
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Select this to enable max6370 watchdog timer.
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config WDT_MCF
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bool "ColdFire family watchdog timer support"
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depends on WDT
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help
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Select this to enable ColdFire watchdog timer,
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which supports mcf52x2 mcf532x mcf523x families.
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config WDT_MESON_GXBB
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bool "Amlogic watchdog timer support"
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depends on WDT
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help
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Select this to enable Meson watchdog timer,
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which can be found on some Amlogic platforms.
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config WDT_MPC8xxx
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bool "MPC8xxx watchdog timer support"
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depends on WDT && (MPC8xx || MPC83xx)
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help
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Select this to enable mpc8xxx watchdog timer
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config WDT_MPC8xxx_BME
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bool "Enable MPC8xx Bus Monitoring"
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depends on WDT_MPC8xxx && MPC8xx
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help
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Select this to enable mpc8xx Bus Monitor.
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config WDT_MPC8xxx_BMT
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int "MPC8xx Bus Monitor Timing" if WDT_MPC8xxx_BME
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range 0 255
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default 255
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depends on WDT_MPC8xxx
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help
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Bus monitor timing. Defines the timeout period, in 8 system clock
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resolution, for the bus monitor.
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Maximum timeout is 2,040 clocks (255 x 8).
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config WDT_MT7620
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bool "MediaTek MT7620 watchdog timer support"
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depends on WDT && SOC_MT7620
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help
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Select this to enable watchdog timer on MediaTek MT7620 and earlier
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SoC chips.
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config WDT_MT7621
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bool "MediaTek MT7621 watchdog timer support"
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depends on WDT && (SOC_MT7621 || SOC_MT7628)
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help
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Select this to enable Ralink / Mediatek watchdog timer,
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which can be found on some MediaTek chips.
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config WDT_MTK
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bool "MediaTek watchdog timer support"
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depends on WDT && ARCH_MEDIATEK
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help
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Select this to enable watchdog timer for MediaTek SoCs.
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The watchdog timer is stopped when initialized.
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It performs full SoC reset.
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config WDT_NPCM
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bool "Nuvoton watchdog timer support"
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depends on WDT && ARCH_NPCM
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help
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This enables Nuvoton npcm7xx/npcm8xx watchdog timer driver,
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The watchdog timer is stopped when initialized.
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It performs full SoC reset.
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config WDT_OCTEONTX
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bool "Octeon core watchdog support"
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depends on WDT && (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2)
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default y
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imply WATCHDOG
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help
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This enables the Octeon watchdog driver, which can be found on
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various Octeon parts such as Octeon II/III and OcteonTX/TX2.
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config WDT_OMAP3
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bool "TI OMAP watchdog timer support"
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depends on WDT && ARCH_OMAP2PLUS
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default y if AM33XX
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help
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This enables OMAP3+ watchdog timer driver, which can be
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found on some TI chipsets and inline with driver model.
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config WDT_ORION
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bool "Orion watchdog timer support"
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depends on WDT
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select CLK
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help
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Select this to enable Orion watchdog timer, which can be found on some
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Marvell Armada chips.
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config WDT_K3_RTI
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bool "Texas Instruments K3 RTI watchdog"
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depends on WDT && ARCH_K3
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help
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Say Y here if you want to include support for the K3 watchdog
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timer (RTI module) available in the K3 generation of processors.
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if WDT_K3_RTI
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config WDT_K3_RTI_LOAD_FW
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bool "Load watchdog firmware"
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depends on REMOTEPROC
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help
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Automatically load the specified firmware image into the MCU R5F
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core 0. On the AM65x, this firmware is supposed to handle the expiry
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of the watchdog timer, typically by resetting the system.
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config WDT_K3_RTI_FW_FILE
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string "Watchdog firmware image file"
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default "k3-rti-wdt.fw"
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depends on WDT_K3_RTI_LOAD_FW
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help
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Firmware image to be embedded into U-Boot and loaded on watchdog
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start.
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endif
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config WDT_SANDBOX
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bool "Enable Watchdog Timer support for Sandbox"
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depends on SANDBOX && WDT
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help
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Enable Watchdog Timer support in Sandbox. This is a dummy device that
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can be probed and supports all of the methods of WDT, but does not
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really do anything.
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config WDT_ALARM_SANDBOX
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bool "Enable SIGALRM-based Watchdog Timer support for Sandbox"
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depends on SANDBOX && WDT
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help
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Enable support for a SIGALRM-based watchdog timer in Sandbox. This is
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a watchdog device based on the host OS' alarm() function, which will
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kill the sandbox with SIGALRM unless properly maintained.
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config WDT_SBSA
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bool "SBSA watchdog timer support"
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depends on WDT
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help
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Select this to enable SBSA watchdog timer.
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This driver can operate ARM SBSA Generic Watchdog as a single stage.
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In the single stage mode, when the timeout is reached, your system
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will be reset by WS1. The first signal (WS0) is ignored.
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config WDT_SL28CPLD
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bool "sl28cpld watchdog timer support"
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depends on WDT && SL28CPLD
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help
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Enable support for the watchdog timer in the Kontron sl28cpld
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management controller.
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config WDT_SP805
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bool "SP805 watchdog timer support"
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depends on WDT
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help
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Select this to enable SP805 watchdog timer, which can be found on some
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nxp layerscape chips.
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config WDT_STM32MP
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bool "IWDG watchdog driver for STM32 MP's family"
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depends on WDT
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imply WATCHDOG
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help
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Enable the STM32 watchdog (IWDG) driver. Enable support to
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configure STM32's on-SoC watchdog.
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config WDT_SUNXI
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bool "Allwinner sunxi watchdog timer support"
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depends on WDT && ARCH_SUNXI
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default y
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help
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Enable support for the watchdog timer in Allwinner sunxi SoCs.
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config WDT_BCM2835
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bool "Broadcom 2835 watchdog timer support"
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depends on WDT && ARCH_BCM283X
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default y
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help
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Enable support for the watchdog timer in Broadcom 283X SoCs such
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as Raspberry Pi boards.
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config XILINX_TB_WATCHDOG
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bool "Xilinx Axi watchdog timer support"
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depends on WDT
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imply WATCHDOG
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help
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Select this to enable Xilinx Axi watchdog timer, which can be found on some
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Xilinx Microblaze Platforms.
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config WDT_XILINX
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bool "Xilinx window watchdog timer support"
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depends on WDT && ARCH_VERSAL
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select REGMAP
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imply WATCHDOG
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help
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Select this to enable Xilinx window watchdog timer, which can be found on
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Xilinx Versal Platforms.
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config WDT_TANGIER
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bool "Intel Tangier watchdog timer support"
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depends on WDT && INTEL_MID
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help
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This enables support for watchdog controller available on
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Intel Tangier SoC. If you're using a board with Intel Tangier
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SoC, say Y here.
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config WDT_ARM_SMC
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bool "ARM SMC watchdog timer support"
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depends on WDT && ARM_SMCCC
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imply WATCHDOG
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help
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Select this to enable Arm SMC watchdog timer. This watchdog will manage
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a watchdog based on ARM SMCCC communication.
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config SPL_WDT
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bool "Enable driver model for watchdog timer drivers in SPL"
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depends on SPL_DM
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help
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Enable driver model for watchdog timer in SPL.
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This is similar to CONFIG_WDT in U-Boot.
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config WDT_FTWDT010
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bool "Faraday Technology ftwdt010 watchdog timer support"
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depends on WDT
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imply WATCHDOG
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help
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Faraday Technology ftwdt010 watchdog is an architecture independent
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watchdog. It is usually used in SoC chip design.
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endmenu
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