On Tue 30 Sep 12:03 PDT 2014, Stephen Boyd wrote:
> On 09/29/14 17:34, Bjorn Andersson wrote:
> > +
> > +- reg:
> > + Usage: required
> > + Value type: <prop-encoded-array>
> > + Definition: base address and size pair for each area representing the
> > + shared memory. The first pair will must represent the "main"
> > + area, where the shared memory header and table-of-content
> > + can be found.
> >
> > +
> > += EXAMPLE
> > +
> > + smem: smem@fa00000 {
> > + compatible = "qcom,smem";
> > + reg = <0x0fa00000 0x200000>,
> > + <0xfc428000 0x4000>;
>
> Isn't this second entry rpm message ram? That isn't the same as smem.
> Plus smem is part of ram (and rpm message ram is not) so we need to do
> memory reservations or something.
>
Correct they are different, but smem covers both of those and allocations are
only supposed to be done in the first of these.
And I forgot to mention that I have the following in my dt:
/ {
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
smem@fa00000 {
#memory-region-cells = <0>;
reg = <0x0fa00000 0x200000>;
no-map;
};
};
};
Regards,
Bjorn
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