| Age | Commit message (Collapse) | Author |
|---|
|
A53 cluster cannot be power gated unless the entire
multi-cluster (A53 + A72 + CCI) is gated off. Root cause
still TBD, this patch adds temporary workaround to
ONLY allow A53 power off when system suspend.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
Using sc_pm_set_cpu_resume API instead of sc_pm_set_cpu_resume_addr
to support random CPU resume for system suspend, as Linux kernel
now supports non CPU0 suspend, we have to specify the CPU ID for
SCFW to wake up when system resume.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
To support KS1, need to put all resources into OFF mode
instead of STBY when Linux kernel suspend. Here, DRC,
IRQ_STEER and DBLOGIC can be OFF for KS1 mode.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
Add MU power off support for suspend, it needs
to be re-initialized after system resume.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
make sure to put IRQSTEER SCU into correct power modes.
Signed-off-by: Nitin Garg <nitin.garg@nxp.com>
|
|
clean up the license identifier with short SPDX short identifier.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
In order to save power when AP side is suspend,
the DBLOG need to be put into low power mode.
GIC need to be power off to save power. before GIC
power off, we need to save the GIC setting, then
after resume, we need to restore the gic setting.
irqsteer need to be used to wakeup the AP side
when wakeup interrupt is pending for AP side.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
cluster needs to be power down only after cpus inside
it are all powered down, so move all of them into kill
function;
Enable USE_COHERENT_MEM feature to make sure no cache
coherence issue and avoid cache operations in many places;
Add return value for cpu kill function.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@nxp.com>
|
|
1. Request to DRC switch to STBY in low power.
2. Set GIC to LP mode once GIC interface has been disabled in low power flow.
Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@nxp.com>
|
|
Add power off interface for Linux. Currently poweroff the whole board,may
change to poweroff partition if necessary.
sync with the below scfw commit:
commit 0e1f8aa5d6c6a6d9b8c05d5a84bbd613b301d367
Author: Chuck Cannon <chuck.cannon@freescale.com>
Date: Tue Nov 28 13:56:29 2017 -0600
Use SC_R_BOARD_R1 to control the base board reset.
Signed-off-by: Chuck Cannon <chuck.cannon@freescale.com>
Signed-off-by: Robin Gong <yibin.gong@nxp.com>
|
|
system interconnect etc.
Signed-off-by: Ranjani Vaidyanathan <Ranjani.Vaidyanathan@nxp.com>
|
|
When doing cpu hot-plug, if all CPUs in same cluster are off,
then this cluster's power and CCI port can be also turned off
to save power.
Also add cluster and CCI low power mode request to SCFW.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
Add suspend/resume support with all CPUs power down.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
Add system_off pcsi callback to avoid below kernel
message when doing power off:
[11613.953711] reboot: Power down
[11613.958318] systemd-shutdow: 8 output lines suppressed due to ratelimiting
[11613.965285] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00
[11613.965285]
[11613.974441] CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 4.9.11-03354-g0e1
[11613.982369] Hardware name: Freescale i.MX8QXP LPDDR4 ARM2 (DT)
[11613.988216] Call trace:
[11613.990681] [<ffff0000080882bc>] dump_backtrace+0x0/0x1a8
[11613.996092] [<ffff000008088478>] show_stack+0x14/0x1c
[11614.001154] [<ffff0000083aaf98>] dump_stack+0x8c/0xac
[11614.006213] [<ffff000008162aac>] panic+0x124/0x28c
[11614.011016] [<ffff0000080c0b20>] complete_and_exit+0x0/0x20
[11614.016600] [<ffff0000080dc6d8>] SyS_reboot+0x168/0x244
[11614.021829] [<ffff000008082ef0>] el0_svc_naked+0x24/0x28
[11614.027153] Kernel Offset: disabled
[11614.030646] Memory Limit: none
[11614.040755] ---[ end Kernel panic - not syncing: Attempted to kill init! exi0
[11614.040755]
As there is no system power off SCFW API available now, so just
simply do wfi and never return when system_off is called.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
Add i.MX8QM board reboot support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
|
|
Add i.MX8QM platform support.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
