diff options
Diffstat (limited to 'arch/arm/mach-omap2/cpuidle34xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/cpuidle34xx.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index f290e484e576..0fb619c52588 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -453,6 +453,18 @@ 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. + * we disable C7 state as a result. + */ + if (IS_PM34XX_ERRATUM(PM_SDRC_WAKEUP_ERRATUM_i583)) { + omap3_power_states[OMAP3_STATE_C7].valid = 0; + cpuidle_params_table[OMAP3_STATE_C7].valid = 0; + WARN_ONCE(1, "%s: core off state C7 disabled due to i583\n", + __func__); + } } struct cpuidle_driver omap3_idle_driver = { |