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Open Switch Retention(OSWR) is a retention state which is unsupported
in DRA7 SoC. This state is achieved when power state is set to
retention and logic power state is set to OFF.
Even though DRA7 architecture is a OMAP derivative, none of the
powerdomains are actually implemented to achieve OSWR in the SoC.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
When the power domain is in "ON" state, the memories should be always
in "ON", even though the hardware register allows other states to be
written, wrong states may confuse certain hardware blocks.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Erratum i892 as will be documented in the upcoming G or later revision
of DRA7xx/ AM57xx errata documentation (SPRZ398F) states that L3 clock
needs to be kept active all the time to ensure that asymmetric aging
degradation is minimal and within the design allowed margin.
By allowing core domain to transition to INA and allowing L3 clock to be
turned off for extended periods of time, there is a risk of functional
issues and device failure as a result.
Ref: http://www.ti.com/lit/er/sprz429h/sprz429h.pdf
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add the data file to describe all power domains inside the DRA7XX SoC.
Signed-off-by: Ambresh K <ambresh@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: added generation notation to comments]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
