/*******************************************************************************
* MTK_platform handler called when an affinity instance has just been powered on after
* being turned off earlier. The level and mpidr determine the affinity
* instance. The 'state' arg. allows the platform to decide whether the cluster
* was turned off prior to wakeup and do what's necessary to setup it up
* correctly.
******************************************************************************/
int mt_affinst_on_finish(unsigned long mpidr,
unsigned int afflvl,
unsigned int state)
{
int rc = PSCI_E_SUCCESS;
unsigned long linear_id, cpu_setup;
mailbox_t *mt_mboxes;
unsigned int gicd_base, gicc_base, ectlr;
switch (afflvl) {
case MPIDR_AFFLVL2:
if (state == PSCI_STATE_OFF) {
// __asm__ __volatile__ ("1: b 1b \n\t");
}
gicd_base = mt_get_cfgvar(CONFIG_GICD_ADDR);
gic_pcpu_distif_setup(gicd_base);
break;
case MPIDR_AFFLVL1:
/* Enable coherency if this cluster was off */
if (state == PSCI_STATE_OFF) {
enable_scu(mpidr);
mt_cci_setup();
trace_power_flow(mpidr, CLUSTER_UP);
}
break;
case MPIDR_AFFLVL0:
/*
* Ignore the state passed for a cpu. It could only have
* been off if we are here.
*/
workaround_836870(mpidr);
/*
* Turn on intra-cluster coherency if the MTK_platform flavour supports
* it.
*/
cpu_setup = mt_get_cfgvar(CONFIG_CPU_SETUP);
if (cpu_setup) {
ectlr = read_cpuectlr();
ectlr |= CPUECTLR_SMP_BIT;
write_cpuectlr(ectlr);
}
/* Zero the jump address in the mailbox for this cpu */
mt_mboxes = (mailbox_t *) (MBOX_OFF);
linear_id = platform_get_core_pos(mpidr);
mt_mboxes[linear_id].value = 0;
flush_dcache_range((unsigned long) &mt_mboxes[linear_id],
sizeof(unsigned long));
gicc_base = mt_get_cfgvar(CONFIG_GICC_ADDR);
/* Enable the gic cpu interface */
gic_cpuif_setup(gicc_base);
//gic_cpu_restore();
#if 0 //fixme,
/* Allow access to the System counter timer module */
reg_val = (1 << CNTACR_RPCT_SHIFT) | (1 << CNTACR_RVCT_SHIFT);
reg_val |= (1 << CNTACR_RFRQ_SHIFT) | (1 << CNTACR_RVOFF_SHIFT);
reg_val |= (1 << CNTACR_RWVT_SHIFT) | (1 << CNTACR_RWPT_SHIFT);
mmio_write_32(SYS_TIMCTL_BASE + CNTACR_BASE(0), reg_val);
mmio_write_32(SYS_TIMCTL_BASE + CNTACR_BASE(1), reg_val);
reg_val = (1 << CNTNSAR_NS_SHIFT(0)) |
(1 << CNTNSAR_NS_SHIFT(1));
mmio_write_32(SYS_TIMCTL_BASE + CNTNSAR, reg_val);
#endif
enable_ns_access_to_cpuectlr();
trace_power_flow(mpidr, CPU_UP);
break;
default:
assert(0);
}
return rc;
}
/*******************************************************************************
* FVP handler called when an affinity instance has just been powered on after
* being turned off earlier. The level and mpidr determine the affinity
* instance. The 'state' arg. allows the platform to decide whether the cluster
* was turned off prior to wakeup and do what's necessary to setup it up
* correctly.
******************************************************************************/
int plat_affinst_on_finish(unsigned long mpidr,
unsigned int afflvl,
unsigned int state)
{
int rc = PSCI_E_SUCCESS;
unsigned ectlr;
/* Determine if any platform actions need to be executed. */
if (plat_do_plat_actions(afflvl, state) == -EAGAIN)
return PSCI_E_SUCCESS;
/* Perform the common cluster specific operations */
if (afflvl >= MPIDR_AFFLVL1) {
/*
* This CPU might have woken up whilst the cluster was
* attempting to power down. In this case the FVP power
* controller will have a pending cluster power off request
* which needs to be cleared by writing to the PPONR register.
* This prevents the power controller from interpreting a
* subsequent entry of this cpu into a simple wfi as a power
* down request.
*/
// plat_pwrc_write_pponr(mpidr);
enable_scu(mpidr);
/* Enable coherency if this cluster was off */
plat_cci_enable();
}
/*
* Ignore the state passed for a cpu. It could only have
* been off if we are here.
*/
workaround_836870(mpidr);
/*
* Turn on intra-cluster coherency if the MTK_platform flavour supports
* it.
*/
ectlr = read_cpuectlr();
ectlr |= CPUECTLR_SMP_BIT;
write_cpuectlr(ectlr);
/*
* Clear PWKUPR.WEN bit to ensure interrupts do not interfere
* with a cpu power down unless the bit is set again
*/
// plat_pwrc_clr_wen(mpidr);
/* Zero the jump address in the mailbox for this cpu */
plat_program_mailbox(read_mpidr_el1(), 0);
/* Enable the gic cpu interface */
// arm_gic_cpuif_setup();
gic_cpuif_setup(get_plat_config()->gicc_base);
gic_pcpu_distif_setup(get_plat_config()->gicd_base);
/* TODO: This setup is needed only after a cold boot */
// arm_gic_pcpu_distif_setup();
enable_ns_access_to_cpuectlr();
return rc;
}
