| Age | Commit message (Collapse) | Author |
|---|
|
For i.MX8MM low power audio playback, when Linux suspend,
M4 still needs to be active for audio playback, so system
can NOT enter DSM mode but only force A core platform into
STOP mode, PLLs/NoC/DRAM need to be active as well and MU
interrupt wakeup needs to be enabled for waking up Linux
by MU message sent by M4.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
If NOC is power down in DSM mode, the tz380 register config
will be lost, so we must re-init the tz380 after system resume.
the tz380 initialization must be done after DRAM has been out
of retention.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
re-design the dram power management code to make it more
common for all i.MX8M SOCs. code need to refact and optimize
to make more better. Using this common code on i.MX8MM first,
for i.MX8MQ, will move to this later.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
When system enter deepest cpuilde(WAIT mode), the L2 cache memory
can be on for retention to increase the system performance. So
the WAIT mode with cluster power down should be defined as
rentention power state in PSCI. changing the WAIT_OFF_STATE to
WAIT_RET_STATE to make sure the l2 cache memory is not
clean & invalidate.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
Enable the WAIT mode support in cpuilde to save power.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
|
i.MX8MM is a new soc of the i.MX8M family, this patch
add the basic support for i.MX8MM. further code optimization
needed. WAIT mode support is currently disabled, will be enabled
later.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
|
