You know, Sylvain posted his patch the week after 2.6.23 was released
so I guess it's a big fat no.
However the original patchset or it
(http://ozlabs.org/pipermail/linuxppc-dev/2007-October/044301.html)
should patch very easily.
The last thing you'd want is to code a driver using BestComm right now,
and then move to a new kernel later on in development and have to rewrite
it from scratch. The Freescale API really is dead as a dodo.
--
Matt Sealey <[EMAIL PROTECTED]>
Genesi, Manager, Developer Relations
Jon Smirl wrote:
Was the new BestComm support in the 2.6.23.1 kernel he is using?
On Thu, Oct 23, 2008 at 6:28 PM, Matt Sealey <[EMAIL PROTECTED]> wrote:
You need to write a task that does the DMA operation you want; GenBD is
actually pretty generic and lets you just copy from one place to another.
The API is pretty simple; make sure genbd is compiled in, get the task
structure using bcom_gen_bd_[tr]x_init, and then.. uhh.. this is where I
always forget.
There is a way to submit a buffer descriptor and have the engine basically
perform that transfer. I think it's bcom_prepare_next_buffer and then
bcom_submit_next_buffer.
Actually I can't even FIND those functions in the Linux tree right now, but
they have to be in there because the FEC driver uses them..
--
Matt Sealey <[EMAIL PROTECTED]>
Genesi, Manager, Developer Relations
Dave Best wrote:
I am trying to connect a FPGA/FIFO with my MPC5200b on a phytec PCM 030
board while running a 2.6.23.1 Linux.
The Linux Kernel source contains an implementation for the Bestcomm API in
the form of a driver for ethernet (fec) and ATA.(situated in the
arch-powerpc/sysdev/bestcomm path) I tried to make use of it but i've run
into some problems.
So i tried to include the API in a module to utilize its functionality but
no luck till now.
Freescale supports the Bestcomm DMA API not on an OS level. So the problem
is adopting this API into a Linux environment, which distinguishes between
kernel space and user space while writing to the appropriate registers.
Further information is very hard to find for such a common task as
starting a DMA transfer.
Dave
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