[PATCH v2] OMAP: use fncpy to copy the PM code functions to SRAM

Jean Pihet jean.pihet at newoldbits.com
Thu Jan 20 08:14:40 EST 2011


On Wed, Jan 19, 2011 at 11:10 PM, Tony Lindgren <tony at atomide.com> wrote:
> * Kevin Hilman <khilman at ti.com> [110119 13:37]:
>> Kevin Hilman <khilman at ti.com> writes:
>>
>> > jean.pihet at newoldbits.com writes:
>> >
>> >> From: Jean Pihet <j-pihet at ti.com>
>> >>
>> >> The new fncpy API is better suited for copying some
>> >> code to SRAM at runtime. This patch changes the ad-hoc
>> >> code to the more generic fncpy API.
>> >>
>> >> Tested OK on OMAP3 in low power modes (RET/OFF)
>> >> using omap2plus_defconfig with !CONFIG_THUMB2_KERNEL.
>> >> Compile tested on OMAP1/2 using omap1_defconfig.
>> >>
>> >> Signed-off-by: Jean Pihet <j-pihet at ti.com>
>> >
>> > Acked-by: Kevin Hilman <khilman at ti.com>
>> >
>> > Boot tested on OMAP1 & OMAP2 as well.  Note that neither OMAP1 or OMAP2
>> > has had working suspend/resume for a long time now, so I did not test
>> > suspend/resume.
>>
>> For OMAP2:
>>
>> Tested-by: Kevin Hilman <khilman at ti.com>
>>
>> to test a little more on OMAP2, I just removed the WFI from the
>> low-level code and tested suspend that way.  That's enough to be sure
>> the copied code is copied and executed.
>>
>> Worked fine on OMAP2420/n810.
>>
>> For OMAP1, this didn't work and would require more serious hacking on
>> the OMAP1 suspend path, which I currently have no plans to do.
>
> Boots fine on osk5912 and n800 too:
>
> Tested-by: Tony Lindgren <tony at atomide.com>
>

Thanks for testing!

Regards,
Jean



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