Exynos 5410 support (was [PATCH 6/6] ARM: dts: exynos5420: add sysmmu nodes)

Ben Gamari
2015-06-01T19:12:24Z

On 06/01/2015 06:10 AM, Marek Szyprowski wrote:
> This patch adds System MMU nodes to all defined devices that are specific
> to Exynos5420/5800/5422 series.

Apologies in advance if Thunderbird mangles this message; my usual mail
configuration has suffered an unfortunate run-in with a mug of tea.

As someone who has devoted a few weekends trying to make the mainline
kernel usable on an Odroid XU2, I can't help but notice that nearly
every patchset that has hit this list recently excludes the Exynos 541x
devices, including series which appear to go out of their way to support
older devices. I would attribute this to the lack of publicly accessible
documentation, but many of these patches are coming from Samsung
employees. Worse, the few patches that have been submitted for the 5410
have languished in queue-purgatory. What is going on with support for
this silicon?

These devices really aren't that old but if Samsung insists that they
aren't worth putting engineering time towards then perhaps they could at
least release documentation? The Hardkernel folks are on the record[2]
as saying there was a document under review. Perhaps this document could
be quickly trimmed into a disclosable state? Even a quick-and-dirty
documentation release would help my efforts substantially.

Cheers,

- Ben

[1] https://github.com/bgamari/linux/commits/odroid-3.19
[2] http://forum.odroid.com/viewtopic.php?f=65&t=1932#p20457