[PATCH 4/4] arm64: dts: ti: k3-am642-evm/sk: Reserve some on-chip SRAM for R5Fs

[Nishanth Menon]

On 13:05-20210614, Suman Anna wrote:
> >> +&oc_sram {
> >> +	main_r5fss0_core0_sram: r5f-sram at 40000 {
> >> +		reg = <0x40000 0x40000>;
> >> +	};
> >> +
> >> +	main_r5fss0_core1_sram: r5f-sram at 80000 {
> >> +		reg = <0x80000 0x40000>;
> >> +	};
> >> +
> >> +	main_r5fss1_core0_sram: r5f-sram at c0000 {
> >> +		reg = <0xc0000 0x40000>;
> >> +	};
> >> +
> >> +	main_r5fss1_core1_sram: r5f-sram at 100000 {
> >> +		reg = <0x100000 0x40000>;
> >> +	};
> >> +};
> > 
> 
> These addresses are currently in sync with the corresponding firmware linker map
> files. Any changes needed here should also be aligned and updated with all the
> firmwares then.
> 
> Nishanth,
> How about dropping this patch until we conclude the discussion and picking up
> the rest?


Lets skip this patch for this merge cycle - aka stay compatible with the
previous reference binaries that do not use OCSRAM (aka not pick up
4x latency improvement), till we figure out a future looking and
relatively stable memory map that considers:

a) R5s IPC RAM
+ future usage:
b) M4F IPC RAM
c) ICSSG buffer RAMs

-- 
Regards,
Nishanth Menon
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