On Friday 22 May 2015 22:50:30 Hanjun Guo wrote:

quoted

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index e5e7c55..25a0df1 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig

@@ -152,6 +152,18 @@ config ARM_SP805_WATCHDOG
        ARM Primecell SP805 Watchdog timer. This will reboot your system when
        the timeout is reached.

+config ARM_SBSA_WATCHDOG
+     tristate "ARM SBSA Generic Watchdog"
+     depends on ARM || ARM64 || COMPILE_TEST

SBSA is for ARMv8-A based (64-bit) servers, no need to depends on ARM,
and why we depends on COMPILE_TEST?

I think it's a reasonable assumption that someone will sooner or later
put that hardware into an ARM32 machine, or run a 32-bit kernel on
a chip that has it.

While SBSA requires this watchdog device, nothing prevents SoC
manufacturers from using the same design in something that is not
a server.

	Arnd