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Re: Broadcom XLP support
> On Aug 2, 2016, at 5:37 PM, ANDY KENNEDY <ANDY.KENNEDY@adtran.com> wrote:
>
> ...
> The addition of XLP to the new binutils came with the following comment:
> /* XLP is mostly like XLR, with the prominent exception it is being
> MIPS64R2. */
> which may not be correct. The kernel source includes Broadcom/Netlogic
> specific instructions that are not defined as a part of the XLR. IIRC,
> the XLP is a superset of the XLR.
XLP is MIPS64r2, plus XLP-specific instructions. Instruction-wise it is a superset of XLR, though the SOC machinery (the on-chip I/O devices) are quite different. For one thing, the endianness rules of the SOC devices are different, as is the way you talk to the high speed devices like Ethernet.
paul