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SubjectRe: Driver for tightly coupled memory
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
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Ben (,

'a smiley only costs 4 bytes'

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