[5/5,v3] OMAP3630: PM: Erratum i583: disable coreoff if < ES1.2

Commit Message

Kevin Hilman Dec. 17, 2010, 10:54 p.m. UTC

None

Patch

diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 81b0a90..92873b4 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -452,6 +452,15 @@  void omap_init_power_states(void)
 	omap3_power_states[OMAP3_STATE_C7].core_state = PWRDM_POWER_OFF;
 	omap3_power_states[OMAP3_STATE_C7].flags = CPUIDLE_FLAG_TIME_VALID |
 				CPUIDLE_FLAG_CHECK_BM;
+
+	/*
+	 * Erratum i583: implementation for ES rev < Es1.2 on 3630
+	 * We cannot enable OFF mode in a stable form for previous
+	 * revisions, transition instead to RET
+	 */
+	if (IS_PM34XX_ERRATUM(SDRC_WAKEUP_ERRATUM_i583)
+	    omap3_power_states[OMAP3_STATE_C7].valid = 0;
+	    
 }