* Discussion to generalize the maintenance process of kernel branches
> for the periodic Linaro releases. This still needs documenting in the
> wiki.
>
> * Merged a set of patches put together by Anand Gadiyar to add display
> support to the PandaBoard.
>
> * Merged the following additional patches:
>
> * d983450 cpufreq: Add documentation for sampling_down_factor
> * 054fcd5 ARM: S5P: Fix end address in memory resource information for UART devices
> * bf47520 ARM: make SWP emulation explicit on !CPU_USE_DOMAINS
> * 459967a ARM: fixup SMP alternatives in modules
> * 7144fbc ARM: 6654/1: perf/oprofile: fix off-by-one in stack check
> * 067dfdf ARM: 6659/1: Thumb-2: Make CONFIG_OABI_COMPAT depend on !CONFIG_THUMB2_KERNEL
> * cc0f308 ARM: 6656/1: hw_breakpoint: avoid UNPREDICTABLE behaviour when reading DBGDSCR
> * 40ef21c ARM: 6657/1: hw_breakpoint: fix ptrace breakpoint advertising on unsupported arch
> * 9e97118 ARM: ptrace: remove single-step emulation code
>
== Upstream oriented activities ==
* Review of Arnd Bergmann's flash card article for LWN.
* Incorporation of feedback to the patch adding Thumb2 support to the
P2V branch.
* Another look at the Thumb-2 compatibility fixes for OMAP from Dave
Martin.
* Review of a patch series adding support for SDHCI v3.00.
* Posted patches:
* Rework of the kernel decompressor code to improve efficiency
* Removal of the 4x expansion presumption while decompressing the kernel
* kprobes insn decoding fix
* Ignore mdesc->boot_params if out of range
* Fold lookup_machine_type() into setup_machine()
== Linaro kernel activities ==
* Looked at some bugs:
* Bug 660811
* Bug 720055
* Merged 2.6.37.1 into linaro-2.6.37
* Merged Dave Martin's Thumb2 compatibility patches for OMAP.
* Merged core ARM ffixes from RMK.
* Merged OMAP fixes from Tony Lindgren.
* Opened up the linaro-2.6.38 branch.
Nicolas
== Kernel maintainance ==
* Merged the first few trees (u8500, zynq) into the arm-soc tree
* reviewed new PWM framework submission
* some more cleanups for randconfig build errors
* cleanup of the 8250 driver as preparation for getting rid of
inb/outb on most platforms.
* Review of highbank and sirfprima platforms
* discussions of DMA mapping API patches from Marek Szyprowski
== Plans ==
* Ask for more subarch pull requests, and merge the trees
* Submit patches from randconfig errors
* finalize 8250 cleanup
Following a suggestion from Nicolas I have implemented table driven
decoding of CPU instructions in kprobes. This is an alternative to the
mass of if/else code in the original kprobes implementation. Also, by
making the register usage in emulation code completely uniform,
emulation functions can be more widely reused and all the separate
prep_emulate_xxx functions unnecessary.
All of infrastructure for this is in patch 1, and I am looking for
feedback on this.
I've also added a second patch which shows how this infrastructure
is used to implement decoding and emulation of all the 32-bit Thumb
instructions.
== Dave Martin <dmart> ==
(Apologies for the late report-- I have been having some
power/connectivity problems)
=== General Activity ===
* CPU info declaration macros -- posted patches; few
comments so far (positive or negative). These may
get merged at the next merge window, depending on
feedback.
* Took a look at a firefox Thumb-2 related problem which
breaks webm video:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/789198 video
It turns out that a "weirdness" in gas is causing a load of ARM code
connected with the webm code to be linked on an odd halfword
boundary. This might be an assembler bug, but it's not 100% clear
what the correct behaviour would be.
=== linaro-kernel-o-standard-arch ===
* thumb-2 now appears to be turned on globally for all boards in
the linux-linaro-oneirii tree. "works" at a basic level for vexpress
and mx51evk. I need to follow up with jcrigby on the exact status
of this.
=== Plans ===
* Check whether the new kernel trees work in Thumb-2 on current
Freescale landing team trees.
* Follow up on Cortex-A15 model/platform availability.
== Dave Martin <dmart> ==
=== General Activity ===
* CPU info declaration macros -- posted patches; few
comments so far (positive or negative). These may
get merged at the next merge window, depending on
feedback.
* Took a look at a firefox Thumb-2 related problem which
breaks webm video:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/789198 video
It turns out that a "weirdness" in gas is causing a load of ARM code
connected with the webm code to be linked on an odd halfword
boundary. This might be an assembler bug, but it's not 100% clear
what the correct behaviour would be.
=== linaro-kernel-o-standard-arch ===
* thumb-2 now appears to be turned on globally for all boards in
the linux-linaro-oneirii tree. "works" at a basic level for vexpress
and mx51evk. I need to follow up with jcrigby on the exact status
of this.
=== Plans ===
* Check whether the new kernel trees work in Thumb-2 on current
Freescale landing team trees.
* Follow up on Cortex-A15 model/platform availability.
== Per Forlin <perfor> ==
=== Highlights ===
* Run mmc test to measure how bandwidth is affected by number of sg
elements in an sg list.
* two bug fixes in the mmc non-blocking code, compilation issue and
mmc_test error.
* adjusted ste_dma40 to comply with dmaengine documentation for issue_pending.
* booted snowball on linux 3.0-rc4
=== Completed WIs===
* https://blueprints.edge.launchpad.net/linux-linaro/+spec/dmaengine-improve-…
* Update ste_dma40 to comply with documentation, to be use as
reference for others: DONE
* https://blueprints.edge.launchpad.net/linux-linaro/+spec/mmc-async-request
* linux 3.0 mmc async req, update after review: DONE
=== Plans ===
* rebase and test mmc non-blocking for linux 3.1
* wrap up minor things before going on 4 weeks vacation in July
=== Device Tree ===
* Sent v2 of imx51-dt patch set that addresses the comments on v1
from Grant and Arnd
* Added one patch into the series to get rid of the cpu_is_mx1()
uses in imx serial driver, so that the DT binding can fit in
the driver well.
* Per Grant's request, added a couple of functions into DT
infrastructure code for drivers to identify device id, which
will be widely needed by drivers using pdev->id when migrating
to DT. The patch is under Grant's review.
=== ARM/imx consolidation ===
* Added one more patch into imx-dma device cleanup series to pass
the whole firmware name via platform_data without the churn of
cpu name and TO version being variables. It's been acked by Vinod
and the whole series will go through Sascha's tree.
=== Misc ===
* [Bug 754254] imx51 randomly truncates serial input at 31
characters. Sent a follow-up patch to Nicolas changing CD/WP
to gpio mode on babbage for by-passing issue [1]. The fixing for
the issue has been incorporated into v4 of the series, which gets
no more comments and is waiting for Chris to merge.
[1] http://article.gmane.org/gmane.linux.ports.arm.kernel/120790
=== Plan ===
* DT on imx51
* imx cleanup and consolidation
--
Regards,
Shawn
== Highlights ==
* Started migrating omap4 panda board "board file" into DT
* Able to proceed with basic changes and getting base address from DT into
i2c driver.
* Facing issues with fetching interrupts from DT into device node structure.
* Discussion about status and alignment at:
-
http://lists.ozlabs.org/pipermail/devicetree-discuss/2011-June/006102.html
== Plan ==
* continue with i2c driver changes and resolve interrupts issue for board
file changes.
* omap soc uses hwmod data structures for platform_device_register. OMAP
hwmod does more than base address and interrupts.
- need to align on handling clock, sysconfig, dma irq's etc
--
Manjunatha GK
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