@@ -73,6 +73,24 @@ static struct prm_setup_vc omap3_setuptime_table = {
.vdd1_off = 0x00,
};
+/* FIXME: These values need to be updated based on more profiling on 3430sdp*/
+static struct cpuidle_params omap3_cpuidle_params_table[] = {
+ /* C1 */
+ {2, 2, 5},
+ /* C2 */
+ {10, 10, 30},
+ /* C3 */
+ {50, 50, 300},
+ /* C4 */
+ {1500, 1800, 4000},
+ /* C5 */
+ {2500, 7500, 12000},
+ /* C6 */
+ {3000, 8500, 15000},
+ /* C7 */
+ {10000, 30000, 300000},
+};
+
static int board_keymap[] = {
KEY(0, 0, KEY_LEFT),
KEY(0, 1, KEY_RIGHT),
@@ -203,6 +221,7 @@ static void __init omap_3430sdp_init_irq(void)
omap_board_config = sdp3430_config;
omap_board_config_size = ARRAY_SIZE(sdp3430_config);
omap3_pm_init_vc(&omap3_setuptime_table);
+ omap3_pm_init_cpuidle(omap3_cpuidle_params_table);
omap2_init_common_hw(hyb18m512160af6_sdrc_params, NULL, omap3_mpu_rate_table,
omap3_dsp_rate_table, omap3_l3_rate_table);
omap_init_irq();
@@ -60,6 +60,30 @@ struct omap3_processor_cx omap3_power_states[OMAP3_MAX_STATES];
struct omap3_processor_cx current_cx_state;
struct powerdomain *mpu_pd, *core_pd, *per_pd;
+/*
+ * The latencies/thresholds for various C states have
+ * to be configured from the respective board files.
+ * These are some default values (which might not provide
+ * the best power savings) used on boards which do not
+ * pass these details from the board file.
+ */
+static struct cpuidle_params cpuidle_params_table[] = {
+ /* C1 */
+ {2, 2, 5},
+ /* C2 */
+ {10, 10, 30},
+ /* C3 */
+ {50, 50, 300},
+ /* C4 */
+ {1500, 1800, 4000},
+ /* C5 */
+ {2500, 7500, 12000},
+ /* C6 */
+ {3000, 8500, 15000},
+ /* C7 */
+ {10000, 30000, 300000},
+};
+
static int omap3_idle_bm_check(void)
{
if (!omap3_can_sleep())
@@ -165,6 +189,24 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev);
+void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params)
+{
+ int i;
+
+ if (!cpuidle_board_params)
+ return;
+
+ for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) {
+ cpuidle_params_table[i].sleep_latency =
+ cpuidle_board_params[i].sleep_latency;
+ cpuidle_params_table[i].wake_latency =
+ cpuidle_board_params[i].wake_latency;
+ cpuidle_params_table[i].threshold =
+ cpuidle_board_params[i].threshold;
+ }
+ return;
+}
+
/* omap3_init_power_states - Initialises the OMAP3 specific C states.
*
* Below is the desciption of each C state.
@@ -41,7 +41,15 @@ struct prm_setup_vc {
u16 vdd1_ret;
u16 vdd1_off;
};
+
+struct cpuidle_params {
+ u32 sleep_latency;
+ u32 wake_latency;
+ u32 threshold;
+};
+
extern void omap3_pm_init_vc(struct prm_setup_vc *setup_vc);
+extern void omap3_pm_init_cpuidle(struct cpuidle_params *cpuidle_board_params);
extern int resource_set_opp_level(int res, u32 target_level, int flags);
extern int resource_access_opp_lock(int res, int delta);