Re: [PATCH 00/36] AArch64 Linux kernel port

From: Jon Masters
Date: Tue Jul 17 2012 - 03:06:11 EST


On 07/16/2012 08:16 AM, Pavel Machek wrote:

>> If an implementation supports AArch32 at EL3 there could be some
>> physical (or some FPGA config) switch to choose between the two. But
>> since AArch64 is mandated, I don't see why one would force AArch32 at
>> EL3 and therefore all lower exception levels (and make a big part of the
>> processor unused).
>
> Actually I see one ... and I can bet it will happen.
>
> So you create that shiny new ARMv8 compliant CPU, 8 cores, 2GHz. HTC
> will want to use it with 1GB of RAM... and put around exiting OMAP
> perihepals.

But that's why we have Eagle (A15). It's a very capable 32-bit design
from ARM and far more sensible for such designs. You can easily build
something with a few A15 clusters in it, as we're already seeing.

Jon.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/