menu "Hardware Spinlock Support" config DM_HWSPINLOCK bool "Enable U-Boot hardware spinlock support" help This option enables U-Boot hardware spinlock support config HWSPINLOCK_SANDBOX bool "Enable Hardware Spinlock support for Sandbox" depends on SANDBOX && DM_HWSPINLOCK help Enable hardware spinlock support in Sandbox. This is a dummy device that can be probed and support all the methods of HWSPINLOCK, but does not really do anything. config HWSPINLOCK_STM32 bool "Enable Hardware Spinlock support for STM32" depends on ARCH_STM32MP && DM_HWSPINLOCK help Enable hardware spinlock support in STM32MP. Hardware spinlocks are hardware mutex which provide a synchronisation mechanism for the various processors on the SoC. endmenu