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3 Commits

Author SHA1 Message Date
Peng Ma
242b0b398c soc: fsl: enable acpi support in RCPM driver 
This patch enables ACPI support in RCPM driver.

Signed-off-by: Peng Ma <peng.ma@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
 2021-04-08 16:34:15 -05:00
Biwen Li
e95f287dee soc: fsl: handle RCPM errata A-008646 on SoC LS1021A 
Hardware issue:
- Reading register RCPM_IPPDEXPCR1 always return zero, this causes
  system firmware could not get correct information and wrongly do
  clock gating for all wakeup source IP during system suspend. Then
  those IPs will never get chance to wake system.

Workaround:
- Copy register RCPM_IPPDEXPCR1's setting to register SCFG_SPARECR8
  to allow system firmware's psci method read it and do things accordingly.

Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
 2020-11-23 19:16:02 -06:00
Ran Wang
3b8db0348c soc: fsl: add RCPM driver 
The NXP's QorIQ processors based on ARM Core have RCPM module
(Run Control and Power Management), which performs system level
tasks associated with power management such as wakeup source control.

Note that this driver will not support PowerPC based QorIQ processors,
and it depends on PM wakeup source framework which provide collect
wake information.

Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
 2019-11-12 15:26:05 -06:00