Bug#812540: Add ARCH_HISI for Lemaker HiKey support
On Fri, 2016-03-11 at 20:03 -0800, Vagrant Cascadian wrote:
> On 2016-03-10, Martin Michlmayr wrote:
> > * Ian Campbell <ijc@debian.org> [2016-01-25 09:57]:
> >> I suppose it will need more than just ARCH_HISI. Are you able to
> identify
> >> the full set of options (e.g. drivers and such) which are needed
> to make
> >> useful Lemaker support? If so I'd appreciate it (if not I can
> probably try
> >> and dig those out myself, but it might take me a while to around
> to it).
>
> Most drivers aren't even available in 4.4.x, and some aren't even in
> 4.5.x yet. From a breif glance, the dts files for
> arch/arm64/boot/dts/hisilicon/hi6220*, don't look to contain support
> for
> much more than the CPU, memory and serial...
>
>
> > This might be a good starting point:
> > https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg109864
> 4.html
>
> Reading that patch, I'm guessing the following are available and
> possibly needed or desired, though possibly may require device-tree
> patches as well:
>
> available in 4.4.x:
>
> CONFIG_ARCH_HISI=y
> CONFIG_POWER_RESET_HISI=y
> CONFIG_HISI_THERMAL=m
> CONFIG_MMC_DW=m
> CONFIG_MMC_DW_K3=m
> CONFIG_I2C_DESIGNWARE_PLATFORM=m
>
> available in 4.5.x:
>
> CONFIG_COMMON_RESET_HI6220=m
> CONFIG_PHY_HI6220_USB=m
>
> linux-next tag next-20160311:
>
> CONFIG_HI6220_MBOX=m
> CONFIG_REGULATOR_HI655X=m
>
>
> Will build a few test kernels and report back...
Thanks, for things other than the ones listed above the ones I'd be
most curious about would be serial and networking (wifi only on this
platform IIRC). Both of those could possibly be supported already via
existing generic drivers, I've no idea...
Ian.
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