Re: freebsd support the MPC8247 CPU?

On Fri, 02 Jun 2006 09:20:35 -0600
Scott Long <scottl@xxxxxxxxxx> wrote:
M. Warner Losh wrote:
In message: <200606020911.31207.jhb@xxxxxxxxxxx>
John Baldwin <jhb@xxxxxxxxxxx> writes:
: On Thursday 01 June 2006 22:09, Wenbo Sun(SH) wrote:
: > Dear FreeBSD Administrator/Developer
: >
: > I want to know whether the FreeBSD OS support the MPC8247 CPU from the
: > Freescale Semiconductor or not.
: > I wish your reply, Thanks a lot!
:
: FreeBSD doesn't currently run on MIPS CPUs.

The MPC8247 CPU is a PowerPC CPU. FreeBSD does run generically on
PowerPC, but a quick grep of the tree shows nothing specific to this
CPU.

Warner

The 824x series are essentially G3 family CPUs. The amount of effort
required to bring up this CPU would be amount the same amount of effort
needed to bring up a new ARM9 CPU. The only thing that complicates it
is that the current ppc support is really tailored for the Mac platform,
so it assumes access to OpenFirmware during bootup. That said, MPC824x
and IBM 4xx series support would be awesome for getting into appliances
that specialize in DSP.

Freescale broke their numbering scheme on this one. It's a variant of
the MPC8272 (8247, 8248, and 8271 were the other numbers, IIRC - optional
ATM and security co-processor). It has a 603e core, which is based on
the G2.

Try searching on the 8272 number and for PowerQUICC-II device drivers.
There were a couple incomplete NetBSD ports floating around the Internet,
but they were already old when I was working on a proprietary port
(for NetBSD) back in 2004.
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