Re: Driver for tightly coupled memory

[Ben Dooks <ben-linux@fluff.org>]

On Mon, Sep 15, 2008 at 01:35:43PM -0700, Alessio Sangalli wrote:
> Hi, the platform I am working on right now (ARM) has a so called 'TCM'
> (tightly coupled memory) that is some 8 to 32kB of SRAM in the chip, no
> waitstates, very high bandwidth, and it is possible to access it *while*
> accessing main memory. It may be a very good thing (for example) to
> implement a software FIFO to be used in ISRs or such.

This isn't the right list to be discussing this on, try looking for
linux-arm-kernel instead. It will get your question to the attention
of more people knowledgable about the ARM specifics.

> Do you know of any implementation of such software FIFO or any other
> kernel driver for TCMs?

IIRC, there's no current support for using TCMs.
 
> bye
> Alessio
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

-- 
Ben (ben@fluff.org, http://www.fluff.org/)

  'a smiley only costs 4 bytes'