Dave Martin <dave.martin@xxxxxxxxxx> writes: > This set of patches, along with some other patches under > discussion on alkml, should enable omap3 and omap4 kernels to be > built with CONFIG_THUMB2_KERNEL. > > This patch set builds on recent cleanup done by the omap > maintainers. > > At least some of this code definitely works, most features have > been tested successfully. Further testing, especially of Thumb-2 > behaviour, is still welcome. > > In particular, I still have no Ack/Tested-by on the following > patches, so it would be great if anyone who has an opportunity > to do a final review / re-test can do so. > > * ARM: omap3: Convert END() to ENDPROC() for correct linkage with CONFIG_THUMB2_KERNEL > * ARM: omap3: Thumb-2 compatibility for sram34xx.S > * ARM: omap3: Thumb-2 compatibility for sleep34xx.S Jean Pihet and I have now done both retention and off-mode testing of these, so I'll add a Tested-by for the last two for Jean and queue these for 2.6.39 in my PM queue git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.git for_2.6.39/pm-misc If you want to do sanity checking with all the other OMAP PM stuff that is queued for 2.6.39, feel free to test with my pm-core branch in the tree above. This has all OMAP PM related changes that will be queued for 2.6.39 integrated. FWIW, I also tested on 3430/n900 (retention and off-mode) and 3630/Zoom3 (retention-only, since the Si rev have has off-mode errata.) Kevin > Seems to work with CONFIG_SMP_ON_UP and CONFIG_THUMB2_KERNEL > enabled on Beagle xM A2 and Panda A1. > > Thanks also to Santosh Shilimkar and Kevin Hilman for their help > with testing so far. > > > v3: > * make SMC instruction syntax more consistent > * remove do_wfi() in favour of the generic wfi() macro > > v4: > * revert to the OMAP-specific do_wfi() implementation, pending > discussion of how generic macros can/should be provided > > v5: > * use ARM for low-level code in mach-omap2/*34xx.S, for > correct interoperation with non-Thumb-capable firmware. > > I've stripped the Acked/Tested-bys from the major patches to > mach-omap2/*34xx.S, since the reversion to ARM constitutes a > significant change -- I would be grateful if people could re- > test / re-review if they have the chance. > > For best future compatibility, I've left the changes which > avoid architecturally deprecated features. > > > Details below. > > Cheers, > Dave > > > The patches can be found, along with a buildable working tree, > in the following repo: > > git://git.linaro.org/people/dmart/linux-2.6-arm.git > > * arm/omap-thumb2: has the patches proposed here > * arm/omap-thumb2+merged: additionally has some patches cherry- > picked from other trees which are needed in order for the > patches on arm/omap-thumb2 to work usefully. > * dirty/arm/omap-thumb2+merged: buildable test tree, which adds > 2 local patches to work around a toolchain bug. > > A working kernel config for this tree is here: > http://people.linaro.org/~dmart/arm_omap-thumb2+v2_config : > > CONFIG_SMP_ON_UP=y > CONFIG_THUMB2_KERNEL=y > CONFIG_SERIAL_OMAP=y (to avoid garbage on xM; for Panda use console=ttyS2) > > (The config is derived from the linaro omap config and so turns on > loads of modules -- don't feel you have to build them all...) > > > Cherry-picked patches originated from Russell's devel tree > and Tony Lindgren's omap-testing tree: > > http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm.git devel > > git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git omap-testing > > This series also depends on one un-merged patch to generic-ise > the wfi() macro: > > git://git.linaro.org/people/dmart/linux-2.6-arm.git arm/wfi-macro > > > Dave Martin (5): > ARM: omap4: Provide do_wfi() for Thumb-2 > ARM: omap4: Convert END() to ENDPROC() for correct linkage with > CONFIG_THUMB2_KERNEL > ARM: omap3: Remove hand-encoded SMC instructions > ARM: omap3: Thumb-2 compatibility for sram34xx.S > ARM: omap3: Thumb-2 compatibility for sleep34xx.S > > arch/arm/mach-omap2/include/mach/omap4-common.h | 4 ++ > arch/arm/mach-omap2/omap-headsmp.S | 2 +- > arch/arm/mach-omap2/omap44xx-smc.S | 8 ++-- > arch/arm/mach-omap2/sleep34xx.S | 62 ++++++++++++++++++---- > arch/arm/mach-omap2/sram34xx.S | 36 ++++++++++--- > 5 files changed, 87 insertions(+), 25 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
