Re: dra7 DCAN address confusion

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Hi Kevin,

On 21/05/18 13:11, Kevin Hilman wrote:
> Hi Roger,
> 
> I'm looking at the dra7.dtsi to try to understand the base addresses,
> and I'm rather confused about the node addresses vs the reg addresses
> for both dcan1 and dcan2.
> 
> Could you clarify why the reg address and node addresses are so
> different for both, and where I might find the TRM that describes
> these addresses?  All I could find was a datasheet that didn't give
> any info about the IP or the base addresses, but I'd really like to
> understand what the *real* addresses are for this.

>From the TRM - http://www.ti.com/lit/pdf/sprui30

"Table 2-4. L4_WKUP Memory Map" contains DCAN1.

"Table 2-6. L4_PER2 Memory Map" contains DCAN2.

As they are in different domains, the addresses look different.

Also in Chapter 24.10.5 DCAN Register Manual,
Table 24-1120. DCAN Instance Summary, shows base addresses for both instances.

> 
> I'm pinging you because you're the author of the original commit[1],
> but feel free to pass along to anyone else who might be able to help.
> 
> Thanks,
> 
> Kevin


-- 
cheers,
-roger

Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
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