This brings watchdog support for the TI K3 SoCs, derived from the Linux kernel, augmented with firmware loading as needed on the AM65x.
Tested on the AM65x EVM and the IOT2050 (also AM65x-based, upstream support will be posted soon).
Changes in v2: - keep watchdog powered when handing over to Linux - drop unneeded explicit power-on - account for RTI firmware locking the power domain
Jan
Jan Kiszka (3): watchdog: Add support for K3 RTI watchdog watchdog: rti_wdt: Add support for loading firmware arm: dts: k3: Add RTI watchdogs
arch/arm/dts/k3-am65-mcu.dtsi | 9 ++ arch/arm/dts/k3-j721e-main.dtsi | 18 ++++ drivers/watchdog/Kconfig | 27 ++++++ drivers/watchdog/Makefile | 4 + drivers/watchdog/rti_wdt.c | 147 ++++++++++++++++++++++++++++++++ drivers/watchdog/rti_wdt_fw.S | 20 +++++ 6 files changed, 225 insertions(+) create mode 100644 drivers/watchdog/rti_wdt.c create mode 100644 drivers/watchdog/rti_wdt_fw.S