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Commit 54c8bff1 authored by Vineet Gupta's avatar Vineet Gupta
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ARC: Reset the value of Interrupt Priority Register 



In case bootloader has changed the priority of one/more IRQ lines

Reported-by: default avatarNoam Camus <noamc@ezchip.com>
Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 07ba69a4

arch/arc/kernel/irq.c

+7 −3
Original line number Diff line number Diff line
@@ -39,10 +39,14 @@ void arc_init_IRQ(void) 
	level_mask |= IS_ENABLED(CONFIG_ARC_IRQ5_LV2) << 5;

	level_mask |= IS_ENABLED(CONFIG_ARC_IRQ6_LV2) << 6;



	if (level_mask) {

		pr_info("Level-2 interrupts bitset %x\n", level_mask);

	/*

	 * Write to register, even if no LV2 IRQs configured to reset it

	 * in case bootloader had mucked with it

	 */

	write_aux_reg(AUX_IRQ_LEV, level_mask);

	}



	if (level_mask)

		pr_info("Level-2 interrupts bitset %x\n", level_mask);

}



/*