diff options
Diffstat (limited to 'plat/imx/imx8m/imx8mq/imx8mq_psci.c')
| -rw-r--r-- | plat/imx/imx8m/imx8mq/imx8mq_psci.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/plat/imx/imx8m/imx8mq/imx8mq_psci.c b/plat/imx/imx8m/imx8mq/imx8mq_psci.c index 78a6ea70..2d7befe2 100644 --- a/plat/imx/imx8m/imx8mq/imx8mq_psci.c +++ b/plat/imx/imx8m/imx8mq/imx8mq_psci.c @@ -9,6 +9,7 @@ #include <arch.h> #include <arch_helpers.h> #include <common/debug.h> +#include <drivers/delay_timer.h> #include <lib/mmio.h> #include <lib/psci/psci.h> @@ -40,6 +41,19 @@ int imx_validate_power_state(unsigned int power_state, return PSCI_E_SUCCESS; } +void imx_pwr_domain_off(const psci_power_state_t *target_state) +{ + uint64_t mpidr = read_mpidr_el1(); + unsigned int core_id = MPIDR_AFFLVL0_VAL(mpidr); + + plat_gic_cpuif_disable(); + imx_set_cpu_pwr_off(core_id); + + /* TODO: Find out why this is still + * needed in order not to break suspend */ + udelay(50); +} + void imx_domain_suspend(const psci_power_state_t *target_state) { uint64_t base_addr = BL31_BASE; @@ -88,6 +102,8 @@ void imx_domain_suspend_finish(const psci_power_state_t *target_state) /* check the core level power status */ if (is_local_state_off(CORE_PWR_STATE(target_state))) { + /* mark this core as awake by masking IRQ0 */ + imx_gpc_set_a53_core_awake(core_id); /* clear the core lpm setting */ imx_set_cpu_lpm(core_id, false); /* enable the gic cpu interface */ |