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Commit 88d23b44 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: Added fdt chosen capability for timer 



This lets a dts author flag a particular timer in the system as the system timer.
If the chosen node contains a "system-timer=<&foo>" entry than that handle will
be used to determine the system timer. In no such entry exists then the first
found timer will be used (current behaviour).

Signed-off-by: default avatarPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent 9998517a

arch/microblaze/kernel/timer.c

+9 −1
Original line number Diff line number Diff line
@@ -257,7 +257,15 @@ void __init time_init(void) 
				0

			};

#endif

	timer = of_find_compatible_node(NULL, NULL, "xlnx,xps-timer-1.00.a");

	prop = of_get_property(of_chosen, "system-timer", NULL);

	if (prop)

		timer = of_find_node_by_phandle(be32_to_cpup(prop));

	else

		pr_info("No chosen timer found, using default\n");



	if (!timer)

		timer = of_find_compatible_node(NULL, NULL,

						"xlnx,xps-timer-1.00.a");

	BUG_ON(!timer);



	timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL));