Re: [Ct173-kernel-internal] [PATCH 0/4] ARM: tegra: Support for big-endian (version 3)

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20.01.2015 14:45, Ben Dooks пишет:
On 20/01/15 11:36, Dmitry Osipenko wrote:
20.01.2015 13:31, Ben Dooks пишет:
On 09/01/15 15:27, Bob Mottram wrote:
During testing of big-endian on a Jetson TK1 with baserock, the
following
issues were found and fixed. Note that to get the system running with
big-endian you will need to disable ARCH_SUSPEND_POSSIBLE within
arch/arm/Kconfig.

Bob Mottram (4):
    ARM: tegra: Add a separate big-endian configuration
    ARM: gpio: tegra: Maintain endianness
    ARM: tegra: enable big-endian support
    ARM: tegra: fix big-endian issue with irq code

Is it possible to get the tegra core patches applied? These seem to work
enough to get a system running and once the PM fixes are in there should
be no problems running big-endian tegra?

I don't think it's enough. Upstream kernel doesn't accept half working
solutions. It's not only PM that needs fixing, but i2c, timer, reset
handler and possibly more. You are enabling big-endian across all tegra
generations, but tegra2 won't boot at all for example. Patches must be
tested on all hw before applying. And nit: big-endian should be enabled
after all dependencies resolved.

Ok, we hadn't found any issue with the reset. I thought we had the
timer fix in this series. Most of the other drivers didn't use
any __raw code so we're reasonably confident they will work.

I didn't see any issues with the i2c from visual inspection, what's
wrong with it in big endian?

I've sent patch.

--
Dmitry
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