lwn.git/arch/arm/mach-realview/realview_eb.c, branch docs-5.8-2

ARM: realview: delete the RealView board files

2016-08-15T18:52:55+00:00

The device tree boot is now feature-complete and fully working, so remove all the RealView board files. Move the remaining realview_cpu_die() function frome "core.h" to the new "hotplug.h" and leave just a minimal device tree core. Signed-off-by: Linus Walleij

ARM: realview: clean up header files

2015-12-18T13:09:45+00:00

This contains multiple trivial cleanups to the realview headers: - removing the file names from the introductory comment - removing the uncompress.h header that is unused - removing the irqs.h header and NR_IRQS logic that is obsoleted by sparse IRQs Signed-off-by: Arnd Bergmann Signed-off-by: Linus Walleij

ARM: realview: make all header files local

2015-12-18T13:09:34+00:00

Nothing includes these files any more, so we can simply move them from arch/arm/mach-realview/include/mach/ to arch/arm/mach-realview. Signed-off-by: Arnd Bergmann [Two fixes added to make everything compile] Signed-off-by: Linus Walleij

ARM: realview: remove private barrier implementation

2015-12-15T08:41:34+00:00

The realview barrier implementation tries to avoid calling outer_sync in order to not lock up as a result of a bug in the l220 cache controller. This gets in the way of the multiplatform support, but we can still remove it if we make sure that the outer_sync function never gets called, by replacing the function pointer with NULL, right after initialization. Signed-off-by: Arnd Bergmann [Fixed up header inclusions] Signed-off-by: Linus Walleij

net: smc91x: use run-time configuration on all ARM machines

2015-02-28T17:56:56+00:00

The smc91x driver traditionally gets configured at compile-time for whichever hardware it runs on. This no longer works on ARM as we continue to move to building all-in-one kernels. Most ARM configurations with this driver already use run-time configuration through DT or through platform_data, but a few have not been converted yet. I've checked all ARM boards that use this driver in their legacy board files, and converted the ones that were using compile-time configuration in smc91x.h to behave like the other ones and provide the interrupt polarity along with the MMIO configuration (width, stride) at platform device creation time. In particular, these combinations were previously selectable in Kconfig but in fact broken: - sa1100 assabet plus pleb - msm combined with any other armv6/v7 platform - pxa-idp combined with any non-DMA pxa variant - LogicPD PXA270 combined with any other pxa - nomadik combined with any other armv4/v5 platform, e.g. versatile. None of these seem critical enough to warrant a backport to stable, but it would be nice to clean this up for good. Signed-off-by: Arnd Bergmann ---- I would like the patch to get merged through netdev, after Robert and/or Linus have verified it on at least some hardware. There are a few other non-ARM platforms using this driver, I could do the same patch for those if we want to take it further. arch/arm/mach-msm/board-halibut.c | 8 ++++- arch/arm/mach-msm/board-qsd8x50.c | 8 ++++- arch/arm/mach-pxa/idp.c | 5 +++ arch/arm/mach-pxa/lpd270.c | 8 ++++- arch/arm/mach-realview/core.c | 7 ++++ arch/arm/mach-realview/realview_eb.c | 2 +- arch/arm/mach-sa1100/neponset.c | 6 ++++ arch/arm/mach-sa1100/pleb.c | 7 ++++ drivers/net/ethernet/smsc/smc91x.c | 9 +++-- drivers/net/ethernet/smsc/smc91x.h | 114 ++---------------------------------------------------------- 10 files changed, 57 insertions(+), 117 deletions(-) Tested-by: Robert Jarzmik Signed-off-by: David S. Miller

arm: realview: specify PMU types

2015-02-06T08:12:55+00:00

Now that we can specify which PMU variant we're likely to deal with, do so in the realview board code. This will allow us to split the ARMv6, ARMv7, and XScale PMU drivers. The Realview EB may be used with ARMv6 or ARMv7 CPUs, but luckily there's only a single ARMv7 CPU, so we can match that explicitly to determine whether or not we have an ARMv7 PMU. Signed-off-by: Mark Rutland Acked-by: Linus Walleij Cc: Arnd Bergmann Cc: Olof Johansson Cc: Russell King Signed-off-by: Olof Johansson

Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into next

2014-06-05T22:57:04+00:00

Pull ARM updates from Russell King: - Major clean-up of the L2 cache support code. The existing mess was becoming rather unmaintainable through all the additions that others have done over time. This turns it into a much nicer structure, and implements a few performance improvements as well. - Clean up some of the CP15 control register tweaks for alignment support, moving some code and data into alignment.c - DMA properties for ARM, from Santosh and reviewed by DT people. This adds DT properties to specify bus translations we can't discover automatically, and to indicate whether devices are coherent. - Hibernation support for ARM - Make ftrace work with read-only text in modules - add suspend support for PJ4B CPUs - rework interrupt masking for undefined instruction handling, which allows us to enable interrupts earlier in the handling of these exceptions. - support for big endian page tables - fix stacktrace support to exclude stacktrace functions from the trace, and add save_stack_trace_regs() implementation so that kprobes can record stack traces. - Add support for the Cortex-A17 CPU. - Remove last vestiges of ARM710 support. - Removal of ARM "meminfo" structure, finally converting us solely to memblock to handle the early memory initialisation. * 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (142 commits) ARM: ensure C page table setup code follows assembly code (part II) ARM: ensure C page table setup code follows assembly code ARM: consolidate last remaining open-coded alignment trap enable ARM: remove global cr_no_alignment ARM: remove CPU_CP15 conditional from alignment.c ARM: remove unused adjust_cr() function ARM: move "noalign" command line option to alignment.c ARM: provide common method to clear bits in CPU control register ARM: 8025/1: Get rid of meminfo ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type ARM: 8066/1: correction for ARM patch 8031/2 ARM: 8049/1: ftrace/add save_stack_trace_regs() implementation ARM: 8065/1: remove last use of CONFIG_CPU_ARM710 ARM: 8062/1: Modify ldrt fixup handler to re-execute the userspace instruction ARM: 8047/1: rwsem: use asm-generic rwsem implementation ARM: l2c: trial at enabling some Cortex-A9 optimisations ARM: l2c: add warnings for stuff modifying aux_ctrl register values ARM: l2c: print a warning with L2C-310 caches if the cache size is modified ARM: l2c: remove old .set_debug method ARM: l2c: kill L2X0_AUX_CTRL_MASK before anyone else makes use of this ...

ARM: l2c: realview: improve commentry about the L2 cache requirements

2014-05-29T23:49:57+00:00

Add better commentry about the L2 cache requirements on these platforms. Unfortunately, the auxiliary control register is not pre-set to indicate the correct cache parameters, so we have to manually program these. Signed-off-by: Russell King

ARM: plat-versatile: convert LEDs to platform device

2014-02-27T13:56:19+00:00

The LEDs were initialized unconditionally with an fs_initcall() which doesn't play well with multiplatform. Convert the driver to a platform device and convert all boards with these LEDs to register a platform device and pass the register as a resource instead. Tested successfully on the Versatile/AB and RealView PB1176. Cc: Bryan Wu Cc: Richard Purdie Cc: Russell King Cc: Pawel Moll Signed-off-by: Linus Walleij

reboot: arm: change reboot_mode to use enum reboot_mode

2013-07-09T17:33:29+00:00

Preparing to move the parsing of reboot= to generic kernel code forces the change in reboot_mode handling to use the enum. [akpm@linux-foundation.org: fix arch/arm/mach-socfpga/socfpga.c] Signed-off-by: Robin Holt Cc: Russell King Cc: Russ Anderson Cc: Robin Holt Cc: H. Peter Anvin Cc: Guan Xuetao Acked-by: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds