ti: k3: common: Add basic PSCI core off support
Use TI-SCI messages to request core power down from system controller firmware. Signed-off-by: Andrew F. Davis <afd@ti.com>
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@ -76,10 +76,19 @@ static int k3_pwr_domain_on(u_register_t mpidr)
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void k3_pwr_domain_off(const psci_power_state_t *target_state)
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void k3_pwr_domain_off(const psci_power_state_t *target_state)
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{
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{
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int core_id, device, ret;
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/* Prevent interrupts from spuriously waking up this cpu */
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/* Prevent interrupts from spuriously waking up this cpu */
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k3_gic_cpuif_disable();
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k3_gic_cpuif_disable();
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/* TODO: Indicate to System firmware about powering down */
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core_id = plat_my_core_pos();
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device = PLAT_PROC_DEVICE_START_ID + core_id;
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ret = ti_sci_device_put(device);
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if (ret) {
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ERROR("Request to stop core failed: %d\n", ret);
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return;
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}
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}
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}
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void k3_pwr_domain_on_finish(const psci_power_state_t *target_state)
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void k3_pwr_domain_on_finish(const psci_power_state_t *target_state)
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