booting on RK3288 board

[Jia-Shiun Li]

http://www.arm.com/products/processors/cortex-a/cortex-a17-processor.php
"ARM Cortex-A12 is now also referred to as the ARM Cortex-A17. "

They decided that software interface is compatible enough to call A12 an
early revision of A17 instead. The difference only exists at performance
and implementation level. So there will be faster A17s and slower "A17s"...?


-Jia-Shiun.


On Tue, Jan 13, 2015 at 7:19 PM, Andrew Turner <andrew at fubar.geek.nz> wrote:

> On Tue, 13 Jan 2015 18:45:31 +0800
> Ganbold Tsagaankhuu <ganbold at gmail.com> wrote:
>
> > On Mon, Jan 12, 2015 at 2:00 PM, Ganbold Tsagaankhuu
> > <ganbold at gmail.com> wrote:
> >
> > > Hi,
> > >
> > > Just wanted to share boot success on T-Firefly board (
> > > http://www.t-firefly.com/en/):
> > >
> > >
> > >
> https://github.com/tsgan/rockchip/blob/master/RK3288/rk3288-dmesg-multi-user.txt
> > >
> > > It has Rockchip RK3288 SoC (quad core Cortex A17)
> > >
> >
> >
> > Replying to myself, actually it is A12.
>
> It looks like most sites saying it is a Cortex-A17 are wrong. We found
> this because the ID register was returning a different value to what
> is documented in the Cortex-A17 TRM. There doesn't appear to be a
> public TRM for the Cortex-A12, but the Linux source shows what Ganbold
> got was for the A12. As far as I know the main difference between the
> A12 and A17 is the latter is able to be part of a big little system.
>
> Andrew
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