Commit Graph

41865 Commits

Author SHA1 Message Date
Michal Simek
a3cd613b2e microblaze: Add TRACE_IRQFLAGS_SUPPORT
There are just two major changes
Renamed local_irq functions to raw_local_irq in irq.c.
Added TRACE_IRQFLAGS_SUPPORT to Kconfig.debug.

Look at Documentation/irqflags-tracing.txt

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:09 +01:00
Michal Simek
fb5a32dc1a microblaze: preliminary enabling for LATENCYTOP support in Kconfig
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:09 +01:00
Michal Simek
bf2d809668 microblaze: Lockdep support
Microblaze needs to do lock_init very soon because MMU init calls lock functions.

Here is the explanation from Peter Zijlstra why we have to enable
__ARCH_WANTS_INTERRUPTS_ON_CTSW.

"So we schedule while holding rq->lock (for obvious reasons), but since
lockdep tracks held locks per tasks, we need to transfer the held state
from the prev to the next task. We do this by explicity calling
spin_release(&rq->lock) in context_switch() right before switch_to(),
and calling spin_acquire(&rq->lock) in
finish_task_switch()->finish_lock_switch().

Now, for some reason lockdep thinks that interrupts got enabled over the
context switch (git grep __ARCH_WANTS_INTERRUPTS_ON_CTSW arch/microblaze
doesn't seem to turn up anything).

Clearly trying to acquire the rq->lock with interrupts enabled is a bad
idea and lockdep warns you about this."

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:09 +01:00
Michal Simek
519e9f4173 microblaze: Register timecounter/cyclecounter
It is the same counter as we use as free running one.
I would like to use it for ftrace.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:09 +01:00
Michal Simek
24b45a12c2 microblaze: Stack trace support
This is working implemetation but the problem is that
Microblaze misses frame pointer that's why is there
big loop which trace and show all addresses which are in text.
It shows addresses which are in registers, etc.

This is problem and this is the reason why all Microblaze
traces are wrong. There is an option to do hacks and trace
the kernel code but this is too complicated.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:09 +01:00
Michal Simek
7cf79d59ea microblaze: Add IRQENTRY_TEXT to lds
It is important for ftrace irqsoff support

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:09 +01:00
Michal Simek
13cdee2329 microblaze: __init_begin symbol must be aligned
The problem was that free_initmem pass to  free_initrd_mem got
bad aligned __init_begin symbol and free_initrd_mem don't care
about __init_end but take PAGE_SIZE instead.

Here is behavior in kernel bootlog.
ramdisk_execute_command from (init/main.c) was rewrite

Freeing unused kernel memory: 6224k freed
Failed to execute ��������������{���
Failed to execute ��������������{����.  Attempting defaults...
Mounting proc:
Mounting var:

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:08 +01:00
Michal Simek
42a2478b78 microblaze: GPIO reset support
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-12-14 08:40:08 +01:00
Balaji T K
e8deb28ca8 mfd: Add support for twl6030 irq framework
This patch adds support for phoenix interrupt framework. New iInterrupt
status register A, B, C are introduced in Phoenix and are cleared on write.
Due to the differences in interrupt handling with respect to TWL4030,
twl6030-irq.c is created for TWL6030 PMIC

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-12-14 00:25:31 +01:00
Russell King
fc7736688b Merge branch 'master' into devel 2009-12-13 19:39:35 +00:00
Russell King
9074e144c1 ARM: fix lh7a40x build
No idea if this platform actually uses cpufreq_get(), but it doesn't
have any cpufreq drivers.  That's not to say it doesn't use cpufreq_get()
in its drivers.  LH7a40x is unmaintained anyhow, and should probably
be killed off.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-13 19:39:20 +00:00
Russell King
1937f5b918 ARM: fix sa1100 build
Fix:

arch/arm/mach-sa1100/generic.c:117: error: redefinition of 'cpufreq_get'
include/linux/cpufreq.h:299: error: previous definition of 'cpufreq_get' was here

cpufreq_get() is used on these platforms to tell drivers what the CPU
frequency is, and therefore the bus frequency - which is critical for
setting the PCMCIA and LCD timings.  Adding ifdefs to these drivers to
select cpufreq_get() or some other interface adds confusion.  Making
these drivers use some other interface for the normal paths and cpufreq
stuff for the cpufreq notifier is insane as well.

(Why x86 can't provide a version of cpufreq_get() which returns the
CPU frequency when CPUFREQ is disabled is beyond me, rather than
requiring a dummy zero-returning cpufreq_get().  Especially as they
do:

			unsigned long khz = cpufreq_get(cpu);
			if (!khz)
				khz = tsc_khz;

In other words, if CPUFREQ is disabled, get it from tsc_khz - why
not provide a dummy cpufreq_get() which returns tsc_khz?)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-13 19:38:08 +00:00
Santosh Shilimkar
b07682b605 mfd: Rename twl4030* driver files to enable re-use
The upcoming TWL6030 is companion chip for OMAP4 like the current TWL4030
for OMAP3. The common modules like RTC, Regulator creates opportunity
to re-use the most of the code from twl4030.

This patch renames few common drivers twl4030* files to twl* to enable
the code re-use.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-12-13 20:05:51 +01:00
Amit Kucheria
3c684e84d1 mfd: Optimised twl4030-power power scripts for the rx51
The power scripts optimisation was mainly done by:
Tero Kristo <tero.kristo@nokia.com> and
Arnaud Mandy <ext-arnaud.2.mandy@nokia.com>

I'm only refactoring and testing it against the mainline kernel.

Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Cc: Tero Kristo <tero.kristo@nokia.com>
Cc: linux-omap@vger.kernel.org
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2009-12-13 19:21:29 +01:00
Russell King
bc7ecbcbc2 Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel 2009-12-13 16:35:09 +00:00
Russell King
c7baab5d1e ARM: fix clps711x, footbridge, integrator, ixp2000, ixp2300 and s3c build bug
Anders Grafström reports that footbridge fails to build after 1c4a4f4.
Fix this by adding the necessary definitions for __pfn_to_bus and
__bus_to_pfn.

Reported-by: Anders Grafström <anders.grafstrom@netinsight.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-13 16:33:19 +00:00
Russell King
0d782dc430 ARM: VFP: fix vfp thread init bug and document vfp notifier entry conditions
When the VFP notifier is called for flush_thread(), we may be
preemptible, meaning we might migrate to another CPU, which means
referencing the current CPU number without some form of locking is
invalid, and can cause data corruption.

For the most cases, this isn't a problem since atomic notifiers are run
under rcu lock, which for most configurations results in preemption
being disabled - except when the preemptable tree-based rcu
implementation is selected.

Let's make it safe anyway.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-12-13 16:33:19 +00:00
Marc Zyngier
285eae0a4b [ARM] pxa/zeus: default configuration for Arcom Zeus SBC.
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-13 21:42:58 +08:00
Marc Zyngier
c2de1c3829 [ARM] pxa/zeus: make Viper pcmcia support more generic to support Zeus
The Arcom Zeus CF slot requires the same kind of support as the Viper.
To avoid code duplication, introduce a platform device that abstracts
the differences.

This also allows for the removal of the ugly export of viper_cf_rst().

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-13 21:42:58 +08:00
Marc Zyngier
e491a11c77 [ARM] pxa/zeus: basic support for Arcom Zeus SBC
Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-13 21:42:58 +08:00
Igor Grinberg
1b82e4c32f [ARM] pxa/em-x270: fix usb hub power up/reset sequence
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-13 21:42:57 +08:00
Wan ZongShun
30eaed053c ARM: NUC900: Add spi driver support for nuc900
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2009-12-13 00:58:00 -07:00
Cliff Wickman
1d865fb728 x86: Fix duplicated UV BAU interrupt vector
Interrupt vector 0xec has been doubly defined in irq_vectors.h

It seems arbitrary whether LOCAL_PENDING_VECTOR or
UV_BAU_MESSAGE is the higher number.  As long as they are
unique. If they are not unique we'll hit a BUG in
alloc_system_vector().

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: <stable@kernel.org>
LKML-Reference: <E1NJ9Pe-0004P7-0Q@eag09.americas.sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-13 08:17:40 +01:00
Linus Torvalds
f40542532e Merge branch 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6
* 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6:
  IXP4xx: GTWX5715 platform only has two PCI IRQ lines, not four.
  IXP4xx: Introduce IXP4XX_GPIO_IRQ(n) macro and convert IXP4xx platform files.
  IXP4xx: move Gemtek GTWX5715 platform macros to the platform code.
  IXP4xx: Remove unused Motorola PrPMC1100 platform macros.
  IXP4xx: move FSG platform macros to the platform code.
  IXP4xx: move DSM G600 platform macros to the platform code.
  IXP4xx: move NAS100D platform macros to the platform code.
  IXP4xx: move NSLU2 platform macros to the platform code.
  IXP4xx: move Coyote platform macros to the platform code.
  IXP4xx: move AVILA platform macros to the platform code.
  IXP4xx: move IXDP425 platform macros to the platform code.
  IXP4xx: Extend PCI MMIO indirect address space to 1 GB.
  IXP4xx: Fix compilation failure with CONFIG_IXP4XX_INDIRECT_PCI.
  IXP4xx: Drop "__ixp4xx_" prefix from in/out/ioread/iowrite functions for clarity.
  IXP4xx: Rename indirect MMIO primitives from __ixp4xx_* to __indirect_*.
  IXP4xx: Ensure index is positive in irq_to_gpio() and npe_request().
  ARM: fix insl() and outsl() endianness on IXP4xx architecture.
  IXP4xx: Fix normally-disabled debugging text in drivers/net/arm/ixp4xx_eth.c.
  IXP4xx: change the timer base frequency to 66.666000 MHz.
2009-12-12 15:22:22 -08:00
Linus Torvalds
09cea96caa Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits)
  powerpc: Fix usage of 64-bit instruction in 32-bit altivec code
  MAINTAINERS: Add PowerPC patterns
  powerpc/pseries: Track previous CPPR values to correctly EOI interrupts
  powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP
  powerpc: Make "intspec" pointers in irq_host->xlate() const
  powerpc/8xx: DTLB Miss cleanup
  powerpc/8xx: Remove DIRTY pte handling in DTLB Error.
  powerpc/8xx: Start using dcbX instructions in various copy routines
  powerpc/8xx: Restore _PAGE_WRITETHRU
  powerpc/8xx: Add missing Guarded setting in DTLB Error.
  powerpc/8xx: Fixup DAR from buggy dcbX instructions.
  powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions.
  powerpc/8xx: Update TLB asm so it behaves as linux mm expects.
  powerpc/8xx: Invalidate non present TLBs
  powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate
  pseries/pseries: Add code to online/offline CPUs of a DLPAR node
  powerpc: stop_this_cpu: remove the cpu from the online map.
  powerpc/pseries: Add kernel based CPU DLPAR handling
  sysfs/cpu: Add probe/release files
  powerpc/pseries: Kernel DLPAR Infrastructure
  ...
2009-12-12 14:27:24 -08:00
Linus Torvalds
9c3936cb69 Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (75 commits)
  omap3: Fix OMAP35XX_REV macros
  omap: serial: fix non-empty uart fifo read abort
  omap3: Zoom2/3: Update hsmmc board config params
  omap3 : Enable TWL4030 Keypad for Zoom2 and Zoom3 boards
  omap3: id code detection 3525 vs 3515
  omap3: rx51: Use wl1251 in SPI mode 3
  omap3: zoom2/3: make MMC slot work again
  omap1: htcherald: Update defconfig to include mux support
  omap1: LCD_DMA: Use some define rather than a hexadecimal
  omap: header: remove unused data-type
  omap: arch/arm/plat-omap/devices.c - sort alphabetically
  omap: Correcting GPMC_CONFIG1_DEVICETYPE_NAND
  OMAP3: serial - allow platforms specify which UARTs to initialize
  omap3: cm-t35: add mux initialization
  OMAP4: Sync up omap4430 defconfig
  OMAP4: Remove the secondary wait loop
  OMAP4: AuxCoreBoot registers only accessible in secure mode
  OMAP4: Fix SRAM base and size
  OMAP4: Fix cpu detection
  omap3: pandora: board file updates for .33
  ...
2009-12-12 11:40:13 -08:00
Linus Torvalds
756300983f Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/amd-iommu: Fix PCI hotplug with passthrough mode
  x86/amd-iommu: Fix passthrough mode
  x86: mmio-mod.c: Use pr_fmt
  x86: kmmio.c: Add and use pr_fmt(fmt)
  x86: i8254.c: Add pr_fmt(fmt)
  x86: setup_percpu.c: Use pr_<level> and add pr_fmt(fmt)
  x86: es7000_32.c: Use pr_<level> and add pr_fmt(fmt)
  x86: Print DMI_BOARD_NAME as well as DMI_PRODUCT_NAME from __show_regs()
  x86: Factor duplicated code out of __show_regs() into show_regs_common()
  arch/x86/kernel/microcode*: Use pr_fmt() and remove duplicated KERN_ERR prefix
  x86, mce: fix confusion between bank attributes and mce attributes
  x86/mce: Set up timer unconditionally
  x86: Fix bogus warning in apic_noop.apic_write()
  x86: Fix typo in arch/x86/mm/kmmio.c
  x86: ASUS P4S800 reboot=bios quirk
2009-12-11 20:47:59 -08:00
Linus Torvalds
6f696eb17b Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (57 commits)
  x86, perf events: Check if we have APIC enabled
  perf_event: Fix variable initialization in other codepaths
  perf kmem: Fix unused argument build warning
  perf symbols: perf_header__read_build_ids() offset'n'size should be u64
  perf symbols: dsos__read_build_ids() should read both user and kernel buildids
  perf tools: Align long options which have no short forms
  perf kmem: Show usage if no option is specified
  sched: Mark sched_clock() as notrace
  perf sched: Add max delay time snapshot
  perf tools: Correct size given to memset
  perf_event: Fix perf_swevent_hrtimer() variable initialization
  perf sched: Fix for getting task's execution time
  tracing/kprobes: Fix field creation's bad error handling
  perf_event: Cleanup for cpu_clock_perf_event_update()
  perf_event: Allocate children's perf_event_ctxp at the right time
  perf_event: Clean up __perf_event_init_context()
  hw-breakpoints: Modify breakpoints without unregistering them
  perf probe: Update perf-probe document
  perf probe: Support --del option
  trace-kprobe: Support delete probe syntax
  ...
2009-12-11 20:47:30 -08:00
Linus Torvalds
c4e194e3b7 Merge branch 'for-linus' of git://codeaurora.org/quic/kernel/dwalker/linux-msm
* 'for-linus' of git://codeaurora.org/quic/kernel/dwalker/linux-msm:
  HTC Dream: mmc compilation fixes
  video: Allow selecting MSM framebuffer in Kconfig
  Add arm msm maintainer entry
  msm: Add memory map for HTC Dream
  msm: add minimal board file for HTC Dream device
  msm: make debugging UART (for DEBUG_LL) configurable
2009-12-11 20:46:51 -08:00
Sanjeev Premi
435bb82749 omap3: Fix OMAP35XX_REV macros
In original implementation, the revision passed to
these macros contained revision number in lower nibble.

But, later the revision bits (OMAP_REVBITS_XX) were
defined to use omap_revision[15:08] where revision
number is containied in higher nibble.

This patch updates the macros; else incorrect revision
is detected for OMAP35xx devices.

Signed-off-by: Sanjeev Premi <premi@ti.com>
2009-12-11 16:16:37 -08:00
vikram pandita
ce13d4716a omap: serial: fix non-empty uart fifo read abort
OMAP3xxx and OMAP4430 UART IP blocks have a restriction wrt RX FIFO.
Empty RX fifo read causes an abort.

OMAP3xxx:
	UART IP revision >= 0x52 have this issue
	MVR register format is:
	Bits  Field Name  Description  				Type  Reset
	31:8   RESERVED 					RO  	0x0
	7:4    MAJOR  	Major revision number of the module.  	RO  	0x--
	3:0    MINOR  	Minor revision number of the module.  	RO  	0x--

OMAP4xxx:
	All revisions have this issue
	Revision id check is not used as the format of MVR resigster has changed
	For omap4 MVR register reads as: 0x50410602 => Revision id = 0x0602
	Format of MVR register on omap4 is: (Courtesy: Cousson, Benoit)
	Bits  Field Name  Description  				Type  Reset
	31:30 SCHEME  	Scheme revision number of module  	RO  	0x1
	29:28 RESERVED   					RO  	0x1
	27:16 FUNC  	Function revision number of module  	RO  	0x041
	15:11 RTL  		Rtl revision number of module  	RO  	0x00
	10:8  MAJOR 	Major revision number of the module.  	RO  	0x6
	7:6   CUSTOM  	Custom revision number of the module.  	RO  	0x0
	5:0   MINOR  	Minor revision number of the module.  	RO  	0x02

Override the default 8250 read handler: mem_serial_in()
by a custom handler: serial_in_8250()
which makes sure that RX fifo is not read when empty

tested on zoom3(3630) board

Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:37 -08:00
Madhusudhan Chikkature
ed32350dc5 omap3: Zoom2/3: Update hsmmc board config params
Update the hsmmc zoom peripheral configuration to support:
Power saving mode
mmc2 8-bit support
Configure mmc2 as non removable

Signed-off-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:37 -08:00
manjugk manjugk
5bcf5a106f omap3 : Enable TWL4030 Keypad for Zoom2 and Zoom3 boards
The TWL4030 keypad driver is not enabled by default for zoom2 and zoom3
boards.

This patch will enable the same for both zoom2 and zoom3 boards.

Tested on zoom2(3430) and zoom3(3630) boards.

Signed-off-by: Manjunatha GK <manjugk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:37 -08:00
Sergey Lapin
0712fb39d7 omap3: id code detection 3525 vs 3515
The runtime detection of OMAP3515 and OMAP3525
was reversed.

Signed-off-by: Sergey Lapin <slapin@ossfans.org>
Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:37 -08:00
Kalle Valo
860fc97632 omap3: rx51: Use wl1251 in SPI mode 3
Otherwise Extreme Lower Power (ELP) wakeup doesn't work properly.

Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:37 -08:00
Anand Gadiyar
aed79bce77 omap3: zoom2/3: make MMC slot work again
omap3: zoom2/3: make MMC slot work again

Commit 12f8dfb56 accidentally broke MMC on zoom2/3.
The .vmmc1 field of zoom_twldata was deleted. Restoring it
allows the MMC slot to work again

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:36 -08:00
Cory Maccarrone
87cbb94b83 omap1: htcherald: Update defconfig to include mux support
The existing htcherald_defconfig did not include mux support, which
prevented USB and other functionality from working out of the box.
This change updates the defconfig to add it in.  It also aligns the
defconfig to the -rc8 kernel config.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:36 -08:00
Janusz Krzysztofik
8d72c796c9 omap1: LCD_DMA: Use some define rather than a hexadecimal
The patch corrects the issue introduced with one of my earlier patches:
	OMAP: DMA: Fix omapfb/lcdc on OMAP1510 broken when PM set[1]
as pointed out by OMAP subsystem maintainer.

Applies on top of my prevoius patch:
  OMAP: DMA: move LCD DMA related code from plat-omap to mach-omap1[2]

Tested on Amstrad Delta
Compile tested with omap_generic_2420_defconfig

[1] http://patchwork.kernel.org/patch/57922/
[2] http://patchwork.kernel.org/patch/61952/

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:36 -08:00
vikram pandita
9cb87a6b44 omap: header: remove unused data-type
Remove unused data type omap_gpio_switch_config

Thereby also get rid of following sparse warnings:
arch/arm/plat-omap/include/plat/board.h :121:20:
	warning: dubious bitfield without explicit `signed' or `unsigned'
arch/arm/plat-omap/include/plat/board.h :122:19:
	warning: dubious bitfield without explicit `signed' or `unsigned'
arch/arm/plat-omap/include/plat/board.h :123:24:
	warning: dubious bitfield without explicit `signed' or `unsigned'

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:36 -08:00
Ladislav Michl
3bfe8971a8 omap: arch/arm/plat-omap/devices.c - sort alphabetically
Comment in omap_init_devices asks to keep init calls and their
implementations in alphabetical order, so let it be that way.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:36 -08:00
Vimal Singh
8fe8acbe5a omap: Correcting GPMC_CONFIG1_DEVICETYPE_NAND
For NAND devices '2' should be used with GPMC_CONFIG1_DEVICETYPE
instead of '1'.

Signed-off-by: Vimal Singh <vimalsingh@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Mika Westerberg
f62349ee97 OMAP3: serial - allow platforms specify which UARTs to initialize
This patch adds new function: omap_serial_init_port(port) that can be
used to initialize only selected UARTs as serial ports. Platforms can
then in their board files call this function instead of omap_serial_init()
if they don't want to use all UARTs as serial ports.

Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Mike Rapoport
edc961a2fa omap3: cm-t35: add mux initialization
CM-T35 can be assembled with different set of peripherals thus making
certain interfaces available to user as GPIOs or dedicated pins. Because
of it CM-T35 bootloader sets up mux configuration only for pins
necessary to boot the system and the rest of the mux configuration is
done by the kernel. Besides, having mux configuration in the kernel
allows to minimize dependancy on bootloader.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Santosh Shilimkar
dca0d91769 OMAP4: Sync up omap4430 defconfig
Enable minimum features to boot omap4430 on es1.0 samples. v2 versions
removes the "CONFIG_SYSFS_DEPRECATED_V2" since it's deprecated. Without
this older file system doesn't boot. One need to upgrade the filesystem
if getting stuck in first init function.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Santosh Shilimkar
b2f5c9413c OMAP4: Remove the secondary wait loop
The secondary cores wakes up in time so the wait loop is not
necessary anymore.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Santosh Shilimkar
942e2c9e52 OMAP4: AuxCoreBoot registers only accessible in secure mode
The AuxCoreBoot0 and AuxCoreBoot1 can be only accessed in secure
mode. Replace the current code with secure monitor API's to access/modify
these registers.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Santosh Shilimkar
a7c3ae2cb6 OMAP4: Fix SRAM base and size
This patch fixes the public sram base address and available
size on OMAP4430.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:35 -08:00
Santosh Shilimkar
b570e0ec25 OMAP4: Fix cpu detection
This patch fixes the OMAP4430 cpu detection. The IC rev detection is
done with hawkeye and rev. Note that rev does not map directly to
defined processor revision numbers as ES1.0 uses value 0.It also fixes
the SCM base address to read the correct ID_CODE register.

Also the cpu_is_omap44xx() and cpu_is_omap443x() correctly populated
instead of always being true

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Grazvydas Ignotas
8d88f7f70c omap3: pandora: board file updates for .33
Pandora board file updates:
- change keycodes of game buttons
  it was decided not to use ABXY layout by the developers.
- drop i2c bus 3 speed to 100kHz
  this is needed for battery monitoring chip to work reliably.
- drop pandora_lcd platform_device
  the older DSS driver was never functional on l-o or mainline
  kernels due to missing panel driver, so remove unneeded
  pandora_lcd platform_device. This also removes last OMAP_TAG
  from the board file.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Gregoire Gentil
249b17f23a omap3: Defconfig file of Always Innovating OMAP3-based Touch Book
Defconfig file of Always Innovating OMAP3-based Touch Book

Signed-off-by: Gregoire Gentil <gregoire@gentil.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Gregoire Gentil
7a079cab46 omap3: Board file of Always Innovating OMAP3-based Touch Book
Board file of Always Innovating OMAP3-based Touch Book

Signed-off-by: Gregoire Gentil <gregoire@gentil.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Cory Maccarrone
bf92a40762 omap1: I2C mux and clocks for omap7xx
This change adds MUX pin configuration and clocks for I2C support
to OMAP 730 and 850-based devices.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Cory Maccarrone
106997c1a4 omap1: Add omap7xx USB support
This change implements USB client side support into the HTC
Herald board configuration.  It uses a similar, but updated
algorithm to initialize the USB as is used in the linwizard
project.

Signed-off-by: Cory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:34 -08:00
Janusz Krzysztofik
f8e9e98454 omap1: DMA: move LCD related code from plat-omap to mach-omap1
All of the LCD DMA code in plat-omap/dma.c appears to be OMAP1-only (and
apparently only is available on a subset of OMAP1 chips).

Move this code to mach-omap1/lcd_dma.c.

Tested on OMAP1510 Amstrad Delta.
Compile-tested with omap_generic_2420_defconfig.

Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Ladislav Michl
414f552ad8 omap1: Use gen_nand
Since omapnand driver never find its way into mainline, switch to gen_nand instead.
Following patch is compile tested only, but it is based on code I wrote for
NetStar board and runtime tested it there.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Cc: Imre Deak <imre.deak@nokia.com>
Cc: Brian Swetland <swetland@google.com>
Cc: Kevin Hilman <kjh@hilman.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Ladislav Michl
3bc4801478 omap: use smc91x_platdata to setup smc91x
Use smc91x_platdata to setup smc91x, so we can get rid of OMAP specific stuff
in smc91x driver

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Tony Lindgren
662c8b55d2 omap: mux: Add 36xx CBP package support
Add 36xx CBP package support

Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Tony Lindgren
15f45e6f27 omap: mux: Remove old mux code for 34xx
Remove old mux code for 34xx

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:33 -08:00
Tony Lindgren
4896e3940a omap: mux: Replace omap_cfg_reg() with new style signal or gpio functions
Replace omap_cfg_reg() with new style signal or gpio functions

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Tony Lindgren
b63128e812 omap: Split i2c platform init for mach-omap1 and mach-omap2
Otherwise we cannot limit new mux code to mach-omap2.
The same signal names should eventually work for other
omaps under mach-omap2.

Note that these pins don't need to be OMAP_PIN_INPUT_PULLUP,
just OMAP_PIN_INPUT is enough.

Cc: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Tony Lindgren
4b715efccf omap: mux: Add debugfs support for new mux code
Add debugfs support for new mux code

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Tony Lindgren
ca5742bdb5 omap: mux: Add new style init functions to omap3 board-*.c files
Add new style mux init functions to omap3 board-*.c files

So far Beagle has been confirmed to be a CBB package,
and CM-T35 a CUS package.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Tony Lindgren
ddaa912a21 omap: mux: Add new style pin multiplexing data for 34xx
Add new style mux data for 34xx. This should also
work with 3630 easily by adding the processor subset
and ball data.

Note that this data is __initdata, and gets optimized
out except for the GPIO pins if CONFIG_OMAP_MUX
is not set.

Also note that this data uses omap3630 naming for
the SDMMC registers instead of 34xx naming with just
MMC.

Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Tony Lindgren
15ac7afe51 omap: mux: Add new style pin multiplexing code for omap3
Initially only for 34xx. This code allows us to:

- Make the code more generic as the omap internal signal
  names can stay the same across omap generations for some
  devices

- Map mux registers to GPIO registers that is needed for
  dynamic muxing of pins during off-idle

- Override bootloader mux values via kernel cmdline using
  omap_mux=some.signa1=0x1234,some.signal2=0x1234

- View and set the mux registers via debugfs if
  CONFIG_DEBUG_FS is enabled

Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:32 -08:00
Mike Rapoport
92c9f50189 omap2: mux: intoduce omap_mux_{read,write}
intoduce omap_mux_{read,write}

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2009-12-11 16:16:31 -08:00
Rajendra Nayak
911bd7395c ARM: OMAP4: PM: Add init api for DPLL nodes
An api at init for all dpll nodes seem to be
needed to reparent the dpll clk node to its
bypass clk in case the dpll is in bypass.
If not done this causes sequencing issues at init
during propogate_rate.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:47 -07:00
Rajendra Nayak
16975a79c8 ARM: OMAP4: PM: Add support for OMAP4 dpll api's
Most of the dpll api's from dpll.c are reused for OMAP4.
This patch does extend a few api's for OMAP4 support.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:46 -07:00
Rajendra Nayak
a1391d2768 ARM: OMAP4: PM: Move DPLL control apis to dpll.c
This patch moves all the dpll control api's to a
common file dpll.c. This is in preperation of omap4
support wherein most of these api's can be reused.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:46 -07:00
Rajendra Nayak
d79b126724 ARM: OMAP4: PM: Add dummy hooks for OMAP4 dpll api's
This patch adds dummy hooks for OMAP4 dpll api's. Removes
dummy hooks for clkdev api's and enables CLKDEV
for OMAP4.
Also comments clockdomain calls from within the clock
framework as its not supported yet for OMAP4.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:46 -07:00
Rajendra Nayak
972c542746 ARM: OMAP4: PM: OMAP4 clock tree and clkdev registration
This patch defines all the clock nodes in OMAP4430
platform. All the clock node structs and the clkdev table is
autogenerated using a python script (gen_clock_tree.py)
developed by Paul Walmsley, Benoit Cousson and Rajendra Nayak.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:45 -07:00
Rajendra Nayak
dd7084138f ARM: OMAP4: PM: Adds CM1/2 register field masks
This patch adds OMAP4 specific CM1 and CM2 module
register field masks. Auto generated using a python
script (gen_cm_shifts_and_mask.py) developed by Benoit
Cousson, Paul Walmsley and Rajendra Nayak.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:45 -07:00
Rajendra Nayak
234f0c4c66 ARM: OMAP4: PM: Adds PRM register shift and mask bits
This patch adds OMAP4 specific PRM register bit field
shifts and masks. Auto generated using a python script
(gen_prm_shifts_and_mask.py) developed by Benoit Cousson,
Paul Walmsley and Rajendra Nayak.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:45 -07:00
Rajendra Nayak
c1294045d2 ARM: OMAP4: PM: Adds PRM register defs for OMAP4
This patch adds OMAP4 specific PRM register defs. Auto generated
using a python script (gen_prm_4430_h.py) developed by Paul
Walmsley and Benoit Cousson.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:45 -07:00
Rajendra Nayak
9b47267f3e ARM: OMAP4: PM: Adds CM1/2 register defs for OMAP4
This patch adds OMAP4 specific CM1 and CM2 module
register defs. Autogenerated using a python scripts
(gen_cm1_4430_h.py,gen_cm2_4430_h.py) developed
by Paul Walmsley and Benoit Cousson.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:45 -07:00
Rajendra Nayak
77772d5f7d ARM: OMAP4: PM: PRM/CM module offsets for OMAP4
This patch adds the offsets for new modules in PRM
and CM for OMAP4
These are autogenerated using a python script (gen_prcm44xx_h.py)
developed by Paul Walmsley and Benoit Cousson.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:45 -07:00
Rajendra Nayak
9ef89150ea ARM: OMAP4: PM: Fix the PRM and CM base addresses
This patch fixes the PRM and CM base addresses and adds
a new CM2 base address for OMAP4

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoit Cousson <b-cousson@ti.com>
2009-12-11 17:00:44 -07:00
Kevin Hilman
0d93d8bb7f OMAP: omap_device: track latency in nanoseconds
Rather than having to do a usecs = nsecs / NSECS_PER_USEC to
track latency in usecs, just track it in nanoseconds.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:44 -07:00
Kevin Hilman
d048ec7ab4 OMAP: omap_device: fix nsec/usec conversion in latency calculations
Use

   usecs = nsecs / NSEC_PER_USEC;

instead of

   usecs = nsecs * NSEC_PER_USEC;

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:44 -07:00
Kevin Hilman
81d7c6ffcc OMAP: hwmod: warn on missing clockdomain
WARN if a clock/hwmod is missing a clockdomain association since
resulting hwmod will not be able to correctly enable/disable clocks.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:44 -07:00
Kevin Hilman
d22926677f OMAP: omap_device: use read_persistent_clock() instead of getnstimeofday()
During suspend and resume, when omap_device deactivation and
activation is happening, the timekeeping subsystem has likely already
been suspended.  Thus getnstimeofday() will fail and trigger a WARN().

Use read_persistent_clock() instead of getnstimeofday() to avoid this.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:44 -07:00
Kevin Hilman
5f1b6ef76f OMAP: omap_device: use UINT_MAX for default wakeup latency limit
The _dev_wakeup_lat_limit field of struct omap_device is u32, so use
UINT_MAX instead of INT_MAX for the default maximum.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:44 -07:00
Kevin Hilman
a470c42cb8 OMAP: omap_device: add to_omap_device() macro
Following the model of to_platform_device(), add to_omap_device()
macro so a platform_device pointer can be converted into an
omap_device pointer.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:43 -07:00
Paul Walmsley
a16b1f7f86 OMAP3 hwmod: drop most of the OCP_SYSCONFIG.CLOCKACTIVITY code
Earlier, the hwmod code had considered the OCP_SYSCONFIG.CLOCKACTIVITY
bits to be incremental power saving bits, controlling internal IP
block clock gates.  This was a misapprehension.  The CLOCKACTIVITY
bits are used to indicate, in advance, which clocks will be cut when
the module acknowledges an idle request.  This enables the IP block to
take whatever action is necessary to complete any in-progress work
before asserting its IdleAck.

In the current Linux-OMAP code, this implies that the clock framework
should be changing module CLOCKACTIVITY bits as module clocks are enabled
and disabled.  We don't do that yet, but in the future, we should.
This must wait until the clock tree is annotated with omap_hwmod pointers
(or vice-versa).  In the meantime, drop most of the hwmod code that
controls CLOCKACTIVITY bits to avoid confusion.

This patch has benefited from many illuminating discussions with (in
alphabetical order) Benoît Cousson <b-cousson@ti.com>, Rajendra Nayak
<rnayak@ti.com>, and Sebastien Sabatier <s-sabatier1@ti.com>.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Sebastien Sabatier <s-sabatier1@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
2009-12-11 17:00:43 -07:00
Paul Walmsley
718bfd7693 OMAP hwmod: add names to module MPU IRQ lines
Replace the existing u8 array of module MPU IRQ lines with a struct
that includes a name - similar to the existing struct
omap_hwmod_dma_info.  Device drivers can then use
platform_get_resource_byname() to retrieve specific IRQs without nasty
dependencies on array ordering.

Thanks to Benoît Cousson <b-cousson@ti.com> and Kevin Hilman
<khilman@deeprootsystems.com> for feedback on this approach.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2009-12-11 17:00:43 -07:00
Paul Walmsley
726072e5dd OMAP3 hwmod: Add automatic OCP_SYSCONFIG AUTOIDLE handling
This patch fills in the OCP_SYSCONFIG.AUTOIDLE handling in the OMAP
hwmod code.

After this patch, the hwmod code will set the module AUTOIDLE bit
(generally <module>.OCP_SYSCONFIG.AUTOIDLE) to 1 by default upon
enable.  If the hwmod flag HWMOD_NO_OCP_AUTOIDLE is set, AUTOIDLE will
be set to 0 upon enable.  Upon module disable, AUTOIDLE will be set to
1.

Enabling module autoidle should save some power.  The only reason to
not set the OCP_SYSCONFIG.AUTOIDLE bit is if there is a bug in the
module RTL, e.g., the MPUINTC block on OMAP3.

Comments from Kevin Hilman <khilman@deeprootsystems.com> inspired this patch,
and Kevin tested an earlier version of this patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-12-11 17:00:43 -07:00
Paul Walmsley
b835d01421 OMAP3 hwmod: reprogram OCP_SYSCONFIG register after setting SOFTRESET
Reprogram the module's OCP_SYSCONFIG register after module reset (SOFTRESET
= 1).  This may not be needed, but the definition of the reset performed by
the SOFTRESET bit is unclear.

Kevin Hilman <khilman@deeprootsystems.com> tested an earlier version of
this patch.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2009-12-11 17:00:43 -07:00
Paul Walmsley
6f8b7ff5b0 OMAP clock/hwmod: fix off-by-one errors
Fix loop bailout off-by-one bugs reported by Juha Leppänen
<juha_motorsportcom@luukku.com>.

This second version incorporates comments from Russell King
<linux@arm.linux.org.uk>.  A new macro, 'omap_test_timeout', has
been created, with cleaner code, and existing code has been converted
to use it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Juha Leppänen <juha_motorsportcom@luukku.com>
Cc: Russell King <linux@arm.linux.org.uk>
2009-12-11 17:00:43 -07:00
Thara Gopinath
3863c74b51 OMAP3: PM: Fix for MPU power domain MEM BANK position
MPU power domain bank 0 bits are displayed in position of bank 1
in PWRSTS and PREPWRSTS registers. So read them from correct
position

Signed-off-by: Thara Gopinath <thara@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:42 -07:00
Paul Walmsley
18862cbe47 OMAP3: SDRC: Place SDRC AC timing and MR changes in CORE DVFS SRAM code behind Kconfig
The code that reprograms the SDRC memory controller during CORE DVFS,
mach-omap2/sram34xx.S:omap3_sram_configure_core_dpll(), does not
ensure that all L3 initiators are prevented from accessing the SDRAM
before modifying the SDRC AC timing and MR registers.  This can cause
memory to be corrupted or cause the SDRC to enter an unpredictable
state.  This patch places that code behind a Kconfig option,
CONFIG_OMAP3_SDRC_AC_TIMING for now, and adds a note explaining what
is going on.  Ideally the code can be added back in once supporting
code is present to ensure that other initiators aren't touching the
SDRAM.  At the very least, these registers should be reprogrammable
during kernel init to deal with buggy bootloaders.  Users who know
that all other system initiators will not be touching the SDRAM can
also re-enable this Kconfig option.

This is a modification of a patch originally written by Rajendra Nayak
<rnayak@ti.com> (the original is at http://patchwork.kernel.org/patch/51927/).
Rather than removing the code completely, this patch just comments it out.

Thanks to Benoît Cousson <b-cousson@ti.com> and Christophe Sucur
<c-sucur@ti.com> for explaining the technical basis for this and for
explaining what can be done to make this path work in future code.
Thanks to Richard Woodruff <r-woodruff2@ti.com>, Nishanth Menon
<nm@ti.com>, and Olof Johansson <olof@lixom.net> for their comments.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Christophe Sucur <c-sucur@ti.com>
Cc: Benoît Cousson <b-cousson@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Olof Johansson <olof@lixom.net>
2009-12-11 17:00:42 -07:00
Roel Kluin
1fda39e6fd OMAP2/3 powerdomain: return errors rather than returning the output of IS_ERR()
IS_ERR returns only 1 or 0, and the functions return a negative error
in other cases anyways.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:41 -07:00
Paul Walmsley
155a22ecd5 OMAP powerdomain: rearrange struct powerdomain to save some memory
This patch rearranges the order of structure members in struct powerdomain
to avoid wasting memory due to alignment restrictions.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:41 -07:00
Paul Walmsley
2354eb5a94 OMAP powerdomain/PM: use symbolic constants for the max number of power states
Replace some bare constants with power states.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
2009-12-11 17:00:41 -07:00
Paul Walmsley
6a06fa6863 OMAP clockdomain/powerdomain: optimize out sleepdep code on OMAP24xx
OMAP24xx chips don't support software-configurable sleep dependencies.
Test early for this so the compiler can redact the entire function body
on OMAP24xx.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:41 -07:00
Paul Walmsley
33903eb55a OMAP clockdomain/powerdomain: remove CONFIG_OMAP_DEBUG_{CLOCK,POWER}DOMAIN
Avoid cluttering the Kconfig space with debug options that are rarely
used.  These can now be enabled and disabled by patching the "#undef DEBUG"
in the source files with "#define DEBUG", conforming to the practice for
the rest of the linux-omap code.

Also, while we're here, some lines in plat-omap/Kconfig use sets of
leading spaces when those lines should start with tabs.  Convert most
of them to use tabs.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
2009-12-11 17:00:40 -07:00
Paul Walmsley
42d75e7df3 OMAP2/3 PRCM: don't export prm_*(), cm_*() functions
Device drivers and loadable modules should not be calling these
prm_* and cm_* functions, so stop exporting them.  Only core code
and device driver integration code (in arch/arm/*omap*) should
call these functions.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:40 -07:00
Paul Walmsley
52650505fb OMAP1 clock: convert mach-omap1/clock.h to mach-omap1/clock_data.c
The OMAP1 clock code currently #includes a large .h file full of static
data structures.  Instead, define the data in a .c file.

Russell King <linux@arm.linux.org.uk> proposed this new arrangement:

    http://marc.info/?l=linux-omap&m=125967425908895&w=2

This patch also deals with most of the flagrant checkpatch violations.

While here, separate the mpu_rate data structures out into their own
files, opp.h and opp_data.c.  In the long run, these mpu_rate tables
should be replaced with OPP code.

Also includes a patch from Felipe Balbi <felipe.balbi@nokia.com> to
mark omap1_clk_functions as __initdata to avoid a section warning:

    http://patchwork.kernel.org/patch/64366/

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Nishanth Menon <nm@ti.com>
2009-12-11 17:00:40 -07:00
Paul Walmsley
6f62b58dd4 OMAP1 clock: convert test in disable_unused() to use ENABLE_ON_INIT
mach-omap1/clock.c:omap1_clk_disable_unused() contains a test that
assumes that the clock structures are available in the file's
namespace.  After a following patch, this will no longer be the case.
So we need to reimplement that test.  It turns out that we already
have a facility in the clock framework to handle this case - the
ENABLE_ON_INIT flag - used on OMAP2/3.  Remove the offending test and
mark the clocks that it was intended to catch as ENABLE_ON_INIT.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2009-12-11 17:00:40 -07:00
Linus Torvalds
2fe77b81c7 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [ACPI/CPUFREQ] Introduce bios_limit per cpu cpufreq sysfs interface
  [CPUFREQ] make internal cpufreq_add_dev_* static
  [CPUFREQ] use an enum for speedstep processor identification
  [CPUFREQ] Document units for transition latency
  [CPUFREQ] Use global sysfs cpufreq structure for conservative governor tunings
  [CPUFREQ] Documentation: ABI: /sys/devices/system/cpu/cpu#/cpufreq/
  [CPUFREQ] powernow-k6: set transition latency value so ondemand governor can be used
  [CPUFREQ] cpumask: don't put a cpumask on the stack in x86...cpufreq/powernow-k8.c
2009-12-11 15:59:23 -08:00
Linus Torvalds
0f4974c439 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: (58 commits)
  tty: split the lock up a bit further
  tty: Move the leader test in disassociate
  tty: Push the bkl down a bit in the hangup code
  tty: Push the lock down further into the ldisc code
  tty: push the BKL down into the handlers a bit
  tty: moxa: split open lock
  tty: moxa: Kill the use of lock_kernel
  tty: moxa: Fix modem op locking
  tty: moxa: Kill off the throttle method
  tty: moxa: Locking clean up
  tty: moxa: rework the locking a bit
  tty: moxa: Use more tty_port ops
  tty: isicom: fix deadlock on shutdown
  tty: mxser: Use the new locking rules to fix setserial properly
  tty: mxser: use the tty_port_open method
  tty: isicom: sort out the board init logic
  tty: isicom: switch to the new tty_port_open helper
  tty: tty_port: Add a kref object to the tty port
  tty: istallion: tty port open/close methods
  tty: stallion: Convert to the tty_port_open/close methods
  ...
2009-12-11 15:34:40 -08:00
Linus Torvalds
3126c136bc Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (21 commits)
  ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()
  ext3: Fix data / filesystem corruption when write fails to copy data
  ext4: Support for 64-bit quota format
  ext3: Support for vfsv1 quota format
  quota: Implement quota format with 64-bit space and inode limits
  quota: Move definition of QFMT_OCFS2 to linux/quota.h
  ext2: fix comment in ext2_find_entry about return values
  ext3: Unify log messages in ext3
  ext2: clear uptodate flag on super block I/O error
  ext2: Unify log messages in ext2
  ext3: make "norecovery" an alias for "noload"
  ext3: Don't update the superblock in ext3_statfs()
  ext3: journal all modifications in ext3_xattr_set_handle
  ext2: Explicitly assign values to on-disk enum of filetypes
  quota: Fix WARN_ON in lookup_one_len
  const: struct quota_format_ops
  ubifs: remove manual O_SYNC handling
  afs: remove manual O_SYNC handling
  kill wait_on_page_writeback_range
  vfs: Implement proper O_SYNC semantics
  ...
2009-12-11 15:31:13 -08:00