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gxbb: Implement PSCI_CPU_OFF 

This works fine for CPU1-3, but it fails for CPU0, where it is simply
ignored and leaves CPU0 in a WFI loop.

Change-Id: I7d73683fdd894f2021d6a5bc2cce6cd03e18e633
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
This commit is contained in:
Antonio Nino Diaz 2018-10-05 20:42:42 +01:00
parent f3ff9f77d3
commit d1bc71455b
1 changed files with 16 additions and 0 deletions
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16
plat/meson/gxbb/gxbb_pm.c
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@ -101,12 +101,28 @@ static void gxbb_pwr_domain_on_finish(const psci_power_state_t *target_state)
gicv2_cpuif_enable();
}
static void gxbb_pwr_domain_off(const psci_power_state_t *target_state)
{
u_register_t mpidr = read_mpidr_el1();
unsigned int core = plat_gxbb_calc_core_pos(mpidr);
uintptr_t addr = GXBB_PSCI_MAILBOX_BASE + 8 + (core << 4);
mmio_write_32(addr, 0xFFFFFFFF);
flush_dcache_range(addr, sizeof(uint32_t));
gicv2_cpuif_disable();
scpi_set_css_power_state(mpidr,
SCPI_POWER_OFF, SCPI_POWER_ON, SCPI_POWER_ON);
}
/*******************************************************************************
* Platform handlers and setup function.
******************************************************************************/
static const plat_psci_ops_t gxbb_ops = {
.pwr_domain_on = gxbb_pwr_domain_on,
.pwr_domain_on_finish = gxbb_pwr_domain_on_finish,
.pwr_domain_off = gxbb_pwr_domain_off,
.system_off = gxbb_system_off,
.system_reset = gxbb_system_reset,
};