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OMAP3: PM: Clear pending PRCM reset flags on init

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

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Kevin Hilman 2009-04-27 16:14:54 -07:00
parent 3a6667acf9
commit 3a07ae30a0
1 changed files with 9 additions and 0 deletions
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9
arch/arm/mach-omap2/pm34xx.c
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@ -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);