Bootstraps for Mips/OCTEON platforms

[Juli Mallett]

On Fri, Feb 18, 2011 at 14:55, Warner Losh <imp at bsdimp.com> wrote:
> On 02/18/2011 12:08, Andrew Duane wrote:
>>
>> I'm starting at ground zero (almost) with an Octeon based platform related
>> to the OCTEON1 config in the -CURRENT. The board uses an existing MIPS
>> bootstrap and loader, but that does not seem to be compatible with what the
>> kernel expects. What bootstrap is used normally? u-boot?
>
> u-boot is what we support.  There's no other support in the codebase right
> now.  uboot gives us:
>
> in a3 is passed in the cavium hardware descriptor.  All other registers are
> ignored on boot.  We only support version 6 and newer of the boot
> descriptor.  You can see the details of the structure in
> sys/mips/cavium/octeon_machdep.c starting with platform_start().

It's worth noting that we don't use the Simple Executive ELF
Application calling convention but the Octeon Linux one, so
'bootoctlinux' should be used instead of 'bootoctelf'.

Juli.