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Commit 3a07ae30 authored by Kevin Hilman's avatar Kevin Hilman
Browse files

OMAP3: PM: Clear pending PRCM reset flags on init 



Any pending reset flags can prevent retention.  Ensure they are all
cleared during boot.

Signed-off-by: default avatarKevin Hilman <khilman@deeprootsystems.com>
parent 3a6667ac

arch/arm/mach-omap2/pm34xx.c

+9 −0
Original line number Diff line number Diff line
@@ -613,6 +613,15 @@ static void __init prcm_setup_regs(void) 
	/* Clear any pending PRCM interrupts */

	prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);



	/* Clear any pending 'reset' flags */

	prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST);

	prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST);

	prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST);

	prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST);

	prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST);

	prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST);

	prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST);



	/* Clear any pending PRCM interrupts */

	prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);