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openrisc: mask interrupts in irq_mask_ack function 

or1k_pic_mask_ack was failing to actually mask the IRQ.

Signed-off-by: Gong Tao <gongtao0607@gmail.com>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
This commit is contained in:
Gong Tao 2012-09-21 08:49:58 +02:00 committed by Jonas Bonn
parent 8eea8a6a9a
commit d23b5799b6
1 changed files with 2 additions and 0 deletions
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2
arch/openrisc/kernel/irq.c
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@ -87,9 +87,11 @@ static void or1k_pic_mask_ack(struct irq_data *data)
/* Comments for pic_ack apply here, too */
#ifdef CONFIG_OR1K_1200
mtspr(SPR_PICMR, mfspr(SPR_PICMR) & ~(1UL << data->hwirq));
mtspr(SPR_PICSR, mfspr(SPR_PICSR) & ~(1UL << data->hwirq));
#else
WARN(1, "Interrupt handling possibly broken\n");
mtspr(SPR_PICMR, (1UL << data->hwirq));
mtspr(SPR_PICSR, (1UL << data->hwirq));
#endif
}