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authorLorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>2013-03-14 14:07:20 +0000
committerJon Medhurst <tixy@linaro.org>2013-05-03 13:50:05 +0100
commit892404cc9460bdc9156ec0ca3ac27c6f20539213 (patch)
treeed8fd19c99f4ebeebdaf88531a5500460b041b29 /arch/arm/mach-vexpress/Makefile
parentc98a7217394f6a96c2681c6e6089360bb29bd6d1 (diff)
downloadvexpress-lsk-892404cc9460bdc9156ec0ca3ac27c6f20539213.tar.gz
ARM: TC2: reset CPUs spuriously woken up on cluster power up
On TC2, all CPUs in a cluster are woken up when an IRQ event triggers for a CPU in a cluster in shutdown state. This patch puts spuriously woken CPUs back in reset by checking the pending IRQ status in the SPC wake-up interrupt status register; if the CPU has no pending IRQ routed to it, the core reexecutes wfi and it is put in reset by FW straight away. Tested-by: Viresh Kumar <viresh.kumar2@arm.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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