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Commit 05b016ec authored Jun 17, 2013 by Vineet Gupta

ARC: Setup Vector Table Base in early boot

Otherwise early boot exceptions such as instructions errors due to
configuration mismatch between kernel and hardware go off to la-la land,
as opposed to hitting the handler and panic()'ing properly.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

parent 38a9ff6d

arch/arc/kernel/head.S

+2 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,8 @@ stext:
		; Don't clobber r0-r4 yet. It might have bootloader provided info
		;-------------------------------------------------------------------

		sr @_int_vec_base_lds, [AUX_INTR_VEC_BASE]

		#ifdef CONFIG_SMP
		; Only Boot (Master) proceeds. Others wait in platform dependent way
		; IDENTITY Reg [ 3 2 1 0 ]

arch/arc/kernel/irq.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -32,8 +32,6 @@ void __cpuinit arc_init_IRQ(void)
		{
		int level_mask = 0;

		write_aux_reg(AUX_INTR_VEC_BASE, _int_vec_base_lds);

		/* Disable all IRQs: enable them as devices request */
		write_aux_reg(AUX_IENABLE, 0);