Commit c63298ea authored by Wayne Ren's avatar Wayne Ren Committed by Maureen Helm
Browse files

arch: arc: improve the reset code 

This commit improves the reset of arc:
* make the processor in the correct status
* clear interrupt related regs

this may improve or fix #6515

Signed-off-by: default avatarWayne Ren <wei.ren@synopsys.com>
parent fb3d2d37

arch/arc/core/reset.S

+12 −2
Changes for arch/arc/core/reset.S: 12 added lines, 2 removed lines.
Original line number Diff line number Diff line
@@ -44,8 +44,18 @@ GTEXT(__start) 
SECTION_FUNC(TEXT,__reset)

SECTION_FUNC(TEXT,__start)



	/* lock interrupts: will get unlocked when switch to main task */

	clri

	/* lock interrupts: will get unlocked when switch to main task

	 * also make sure the processor in the correct status

	 */

	mov r0, 0

	kflag r0



	/* interrupt related init */

	sr r0, [_ARC_V2_AUX_IRQ_ACT]

	sr r0, [_ARC_V2_AUX_IRQ_CTRL]

	sr r0, [_ARC_V2_AUX_IRQ_HINT]



	/* \todo: MPU init, gp for small data? */



#if CONFIG_USERSPACE

	lr r0, [_ARC_V2_STATUS32]

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