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https://github.com/AsahiLinux/u-boot
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7659ea32a6
This patch adds device tree and driver model watchdog support, converts the legacy omap watchdog driver to driver model for TI AM335x chipsets. The following compile warning is removed: ===================== WARNING ====================== This board does not use CONFIG_WDT (DM watchdog support). Please update the board to use CONFIG_WDT before the v2019.10 release. Failure to update by the deadline may result in board removal. See doc/driver-model/MIGRATION.txt for more info. ==================================================== CONFIG_HW_WATCHDOG is no more a default option for AM33XX devices after DT/DM conversion, adjusted kconfig accordingly. DM watchdog support is enabled by default in SPL. The SPL image doesn't fit into SRAM because of size constraints and build breaks with an overflow. For this reason DM watchdog support should be disabled in SPL, driver code should be adjusted accordingly to serve this purpose. Built and tested on AM335x device (BeagleboneBlack), compile tested for all other AM33xx based boards. Signed-off-by: Suniel Mahesh <sunil.m@techveda.org>
177 lines
5.1 KiB
Text
177 lines
5.1 KiB
Text
menu "Watchdog Timer Support"
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config WATCHDOG
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bool "Enable U-Boot watchdog reset"
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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 HW_WATCHDOG
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bool
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config WATCHDOG_RESET_DISABLE
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bool "Disable reset 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 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 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 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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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_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_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 || ARCH_BCM6858 || ARCH_BCM63158)
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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_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_MPC8xx
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bool "MPC8xx watchdog timer support"
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depends on WDT && MPC8xx
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select CONFIG_MPC8xx_WATCHDOG
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help
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Select this to enable mpc8xx watchdog timer
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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_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_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_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_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 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_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 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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endmenu
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