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Re: ethernet driver for eCos


Please keep your replies on the mailing list so that all benefit.

Dileep Kumar wrote:
Hi ,
Could you please tell me which processor I should take as baseline
in order to port eCos on MPC8555.

Sorry, but there is no appropriate HAL in the public tree.


On 1/28/08, Gary Thomas <gary@mlbassoc.com> wrote:
Dileep Kumar wrote:
Hi All,
Could you please tell me what are the things to taken into account
while writting a code for ethernet driver,
the underlying processor is MPC8555 and the board is  WiMAX.
Is the code is different for different board and different processor.?

First of all, the 8555 uses FreeScale's TSEC (Triple Speed Ethernet
Controller) which is
completely different from any of the network drivers in the public CVS.
Writing such
a driver is not special for the architecture, per se, but rather so for
the device itself.

You'll also need a PowerPC HAL for the 85xx series of CPU chips.  This
is also not
in the public CVS and is radically different from any that are (you
asked privately
about starting from the 8260 code - the 82xx and 85xx are pretty far
apart and you'll
end up writing most everything over anyway)

-- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------

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