Commit Graph

15123 Commits

Author SHA1 Message Date
Arnd Bergmann c488637cf0 Merge branch 'samsung-fixes-2' of git://github.com/kgene/linux-samsung into HEAD 2011-09-15 17:28:07 +02:00
Thomas Abraham d03c35939d ARM: EXYNOS4: fix incorrect pad configuration for keypad row lines
The keypad controller requires a external pull-up for all the keypad
row lines. Fix the incorrect pad configuration for keypad controller
row lines by enabling the pad pull-up for the all row lines of the
keypad controller.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 15:54:20 +09:00
Kukjin Kim 3a0ec25954 ARM: SAMSUNG: fix to prevent declaring duplicated
The plat/clock.h revised to prevent declaring duplicated.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 15:54:15 +09:00
Marek Szyprowski caf27307fa ARM: SAMSUNG: fix watchdog reset issue with clk_get()
clkdev framework uses global mutex to protect clock tree, so it is not
possible to call clk_get() in interrupt context. This patch fixes this
issue and makes system reset by watchdog call working again.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 13:59:58 +09:00
Banajit Goswami 0685d5ec3e ARM: S3C64XX: Remove un-used code backlight code on SMDK6410
According to commit 96d78686d4("ARM: S3C64XX: Add PWM backlight
support on SMDK6410") and commit f00207b255("ARM: SAMSUNG: Create
a common infrastructure for PWM backlight support"), this should
not be used anymore.

And this patch fixes follwing warning:
arch/arm/mach-s3c64xx/mach-smdk6410.c:296: warning: 'smdk6410_backlight_device' defined but not used

Signed-off-by: Banajit Goswami <banajit.g@samsung.com>
[kgene.kim@samsung.com: modified commit message]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 13:59:58 +09:00
Changhwan Youn aa421c13a9 ARM: EXYNOS4: restart clocksource while system resumes
System resume can't be completed because mct-frc isn't restarted
after system suspends. This patch restarts mct-frc during system
resume.

Reported-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 13:59:58 +09:00
Kukjin Kim 4bd0fe1c78 ARM: EXYNOS4: Fix routing timer interrupt to offline CPU
The commit 5dfc54e087
("ARM: GIC: avoid routing interrupts to offline CPUs")
prevents routing interrupts to offline CPUs. But in
case of timer on EXYNOS4, the irq_set_affinity() method
is called in percpu_timer_setup() before CPU1 becomes
online. So this patch fixes routing timer interrupt to
offline CPU.

Reported-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 13:59:58 +09:00
Kukjin Kim 4d487d7ed4 ARM: EXYNOS4: Fix return type of local_timer_setup()
According to commmit af90f10d ("ARM: 6759/1: smp: Select
local timers vs broadcast timer support"), the return type
of local_timer_setup() should be int instead of void.

Reported-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 13:59:58 +09:00
Jonghwan Choi 6861a197e2 ARM: EXYNOS4: Fix wrong pll type for vpll
The PLL4650C is used for VPLL on EXYNOS4 so should be fixed.

Signed-off-by: Jonghwan Choi <jhbird.choi@samsung.com>
[kgene.kim@samsung.com: added message]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-09-15 13:59:58 +09:00
Nicolas Pitre 72cc205611 ARM: Dove: fix second SPI initialization call
Commit 980f9f601a "ARM: orion: Consolidate SPI initialization."
broke it by overwriting the SPI0 registration.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: <stable@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-09-14 14:31:43 +02:00
Linus Torvalds 4c7527821c Merge branch 'fixes' of git://git.linaro.org/people/arnd/arm-soc
* 'fixes' of git://git.linaro.org/people/arnd/arm-soc:
  ARM: CSR: add missing sentinels to of_device_id tables
  ARM: cns3xxx: Fix newly introduced warnings in the PCIe code
  ARM: cns3xxx: Fix compile error caused by hardware.h removed
  ARM: davinci: fix cache flush build error
  ARM: davinci: correct MDSTAT_STATE_MASK
  ARM: davinci: da850 EVM: read mac address from SPI flash
  OMAP: omap_device: fix !CONFIG_SUSPEND case in _noirq handlers
  OMAP2430: hwmod: musb: add missing terminator to omap2430_usbhsotg_addrs[]
  OMAP3: clock: indicate that gpt12_fck and wdt1_fck are in the WKUP clockdomain
  OMAP4: clock: fix compile warning
  OMAP4: clock: re-enable previous clockdomain enable/disable sequence
  OMAP: clockdomain: Wait for powerdomain to be ON when using clockdomain force wakeup
  OMAP: powerdomains: Make all powerdomain target states as ON at init
2011-09-12 11:51:35 -07:00
Arnd Bergmann 15ce92861f Merge branch 'for_3.1/pm-fixes-2' of git://gitorious.org/khilman/linux-omap-pm into fixes 2011-09-12 20:30:22 +02:00
Arnd Bergmann d035953e59 Merge branch 'sirf/fixes' into fixes 2011-09-12 14:59:37 +00:00
Jamie Iles 6a53747be5 ARM: CSR: add missing sentinels to of_device_id tables
The of_device_id tables used for matching should be terminated with
empty sentinel values.

Signed-off-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Barry Song <baohua.song@csr.com>
2011-09-11 09:11:26 +08:00
Janusz Krzysztofik 6c6d8deb5d ARM: 7088/1: entry: fix wrong parameter name used in do_thumb_abort
Commit be020f8618, "ARM: entry: abort-macro: specify registers to be
used for macros", while replacing register numbers with macro parameter
names, mismatched the name used for r1. For me, this resulted in user
space built for EABI with -march=armv4t -mtune=arm920t -mthumb-interwork
-mthumb broken on my OMAP1510 based Amstrad Delta (old ABI and no thumb
still worked for me though).

Fix this by using correct parameter name fsr instead of mismatched psr,
used by callers for another purpose.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-10 23:39:56 +01:00
Arnd Bergmann 1f51b001cc Merge branches 'cns3xxx/fixes', 'omap/fixes' and 'davinci/fixes' into fixes 2011-09-10 23:20:25 +02:00
Anton Vorontsov 7caaf7efb9 ARM: cns3xxx: Fix newly introduced warnings in the PCIe code
commit d5341942d7 ("PCI: Make the struct
pci_dev * argument of pci_fixup_irqs const") did not change argument
of pdev_to_cnspci(), and thus introduced the following warnings:

  CHECK   arch/arm/mach-cns3xxx/pcie.c
pcie.c:177:60: warning: incorrect type in argument 1 (different modifiers)
pcie.c:177:60:    expected struct pci_dev *dev
pcie.c:177:60:    got struct pci_dev const *dev
  CC      arch/arm/mach-cns3xxx/pcie.o
pcie.c: In function 'cns3xxx_pcie_map_irq':
pcie.c:177: warning: passing argument 1 of 'pdev_to_cnspci' discards qualifiers from pointer target type
pcie.c:52: note: expected 'struct pci_dev *' but argument is of type 'const struct pci_dev *'

This patch fixes the issue.

Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-09-09 23:33:34 +04:00
Tommy Lin 83a497cab1 ARM: cns3xxx: Fix compile error caused by hardware.h removed
Commit c9d95fbe59 "ARM: convert PCI defines
to variables" deleted cns3xxx' hardware.h, but didn't remove references
for it, so do it now.

This patch removes lines that refer to hardware.h.

Signed-off-by: Tommy Lin <tommy.lin.1101@gmail.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2011-09-09 23:03:32 +04:00
Linus Walleij 897a6a1a14 ARM: davinci: fix cache flush build error
The TNET variant of DaVinci compiles some code that it shares
with other DaVinci variants, however it has a V6 CPU rather than
an ARM926T, thus the hardcoded call to arm926_flush_kern_cache_all()
in sleep.S will obviously fail, and we need to build with the
v6_flush_kern_cache_all() call instead. This was triggered by
manually altering the DaVinci config to build the TNET version.

Cc: Dave Martin <dave.martin@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Cc: stable@kernel.org
2011-09-07 17:22:12 +05:30
Sergei Shtylyov c08748005d ARM: davinci: correct MDSTAT_STATE_MASK
MDSTAT.STATE occupies bits 0..5 according to all available documentation, so fix
the #define MDSTAT_STATE_MASK at last. Using the wrong value seems to have been
harmless though...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2011-09-07 14:23:02 +05:30
Rajashekhara, Sudhakar 810198bc9c ARM: davinci: da850 EVM: read mac address from SPI flash
DA850/OMAP-L138 EMAC driver uses random mac address instead of
a fixed one because the mac address is not stuffed into EMAC
platform data.

This patch provides a function which reads the mac address
stored in SPI flash (registered as MTD device) and populates the
EMAC platform data. The function which reads the mac address is
registered as a callback which gets called upon addition of MTD
device.

NOTE: In case the MAC address stored in SPI flash is erased, follow
the instructions at [1] to restore it.

[1] http://processors.wiki.ti.com/index.php/GSG:_OMAP-L138_DVEVM_Additional_Procedures#Restoring_MAC_address_on_SPI_Flash

Modifications in v2:
Guarded registering the mtd_notifier only when MTD is enabled.
Earlier this was handled using mtd_has_partitions() call, but
this has been removed in Linux v3.0.

Modifications in v3:
a. Guarded da850_evm_m25p80_notify_add() function and
   da850evm_spi_notifier structure with CONFIG_MTD macros.
b. Renamed da850_evm_register_mtd_user() function to
   da850_evm_setup_mac_addr() and removed the struct mtd_notifier
   argument to this function.
c. Passed the da850evm_spi_notifier structure to register_mtd_user()
   function.

Modifications in v4:
Moved the da850_evm_setup_mac_addr() function within the first
CONFIG_MTD ifdef construct.

Signed-off-by: Rajashekhara, Sudhakar <sudhakar.raj@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Cc: stable@kernel.org
2011-09-07 14:23:01 +05:30
Linus Walleij bac7e6ecf6 ARM: 7080/1: l2x0: make sure I&D are not locked down on init
Fighting unfixed U-Boots and other beasts that may the cache in
a locked-down state when starting the kernel, we make sure to
disable all cache lock-down when initializing the l2x0 so we
are in a known state.

Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Cc: Adrian Bunk <adrian.bunk@movial.com>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reported-by: Jan Rinze <janrinze@gmail.com>
Tested-by: Robert Marklund <robert.marklund@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-07 00:48:03 +01:00
Linus Walleij bb9ea77846 ARM: 7081/1: mach-integrator: fix the clocksource
I was intrigued by the fact that the clock stood still on
the Integrator, but it wasn't strange at all, because the
timer was set up all wrong and probably has been for a
while. With this patch the clock starts ticking again:
make the timer periodic (reload), |= on the divisor bit
and load the timer before starting it.

Cc: stable@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-07 00:47:26 +01:00
Kevin Hilman 126caf1376 OMAP: omap_device: fix !CONFIG_SUSPEND case in _noirq handlers
The suspend/resume _noirq handlers were #ifdef'd out in the
!CONFIG_SUSPEND case, but were still assigned to the dev_pm_ops
struct.  Fix by defining them to NULL in the !CONFIG_SUSPEND case.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kevin Hilman <khilman@ti.com>
2011-09-06 13:19:58 -07:00
Paul Walmsley 876355014c Merge branches 'non_hwmod_compliant_fix_3.1rc', 'omap3_clock_fixes_3.1rc', 'omap4_clock_fixes_3.1rc', 'missing_2430_musb_adds_terminator_fix_3.1rc' and 'pwrdm_clkdm_fixes_3.1rc' into prcm-fixes-a-3.1rc 2011-09-04 20:21:16 -06:00
Paul Walmsley 10167873a4 OMAP2430: hwmod: musb: add missing terminator to omap2430_usbhsotg_addrs[]
Add a missing array terminator to omap2430_usbhsotg_addrs[].  Without
this terminator, the omap_hwmod resource building code runs off the
end of the array, resulting in at least this error -- if not worse
behavior:

[    0.578002] musb-omap2430: failed to claim resource 4
[    0.583465] omap_device: musb-omap2430: build failed (-16)
[    0.589294] Could not build omap_device for musb-omap2430 usb_otg_hs

This should have been part of commit
78183f3fdf ("omap_hwmod: use a null
structure record to terminate omap_hwmod_addr_space arrays") but was
evidently missed.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
2011-09-04 20:20:53 -06:00
Mark Rutland fb492c9160 ARM: 7067/1: mm: keep significant bits in pfn_valid
When ARCH_HAS_HOLES_MEMORYMODEL is selected, pfn_valid calls
memblock_is_memory to test validity of a pfn:

> memblock_is_memory(pfn << PAGE_SHIFT);

On LPAE systems this cuts off the top bits, as the shift occurs before
the value is promoted to a phys_addr_t.

This patch replaces the shift with a call to __pfn_to_phys (which casts
pfn to phys_addr_t before shifting), preventing the loss of significant
bits.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-09-04 10:50:03 +01:00
Linus Torvalds 90e93648c4 Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: pm: avoid writing the auxillary control register for ARMv7
  ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
  ARM: pm: arm920/926: fix number of registers saved
  ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
  ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
  ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
  ARM: 7003/1: vexpress: Add clock definition for the SP805.
  ARM: 7051/1: cpuimx* boards: fix mach-types errors
  ARM: 7019/1: Footbridge: select CLKEVT_I8253 for ARCH_NETWINDER
  ARM: 7015/1: ARM errata: Possible cache data corruption with hit-under-miss enabled
  ARM: 7014/1: cache-l2x0: Fix L2 Cache size calculation.
  ARM: 6967/1: ep93xx: ts72xx: fix board model detection
  ARM: 6965/1: ep93xx: add model detection for ts-7300 and ts-7400 boards
  ARM: cache: detect VIPT aliasing I-cache on ARMv6
  ARM: twd: register clockevents device before enabling PPI
  ARM: realview: ensure visibility of writes during reset
  ARM: perf: make name of arm_pmu_type consistent
  ARM: perf: fix prototype of release_pmu
  ARM: fix perf build with uclibc toolchains
2011-08-29 16:34:07 -07:00
Linus Torvalds 3ae627b5a6 Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
  ARM: mach-footbridge: add missing header file <video/vga.h>
  ARM: mach-orion5x: add missing header file <linux/vga.h>
  arm: fix compile failure in orion5x/dns323-setup.c
  at91: at91sam9261.c: fix typo in t2_clk alias for atmel_tcb.0
  ARM: S5P: fix bug in spdif_clk_get_rate
  ARM: EXYNOS4: Add restart hook for proper reboot
  ARM: EXYNOS4: Increase reset delay for USB HOST PHY
  ARM: S5P: add required chained_irq_enter/exit to gpio-int code
  ARM: EXYNOS4: add required chained_irq_enter/exit to eint code
  ARM: SAMSUNG: Add chained enrty/exit call to timer interrupt handler
  ARM: S3C64XX: Fix build break in PM debug
  ARM: S5PV210: Fix build warning
  ARM: EXYNOS4: Fix the IRQ definitions for MIPI CSIS device
  ARM: EXYNOS4: remove duplicated inclusion
  ARM: EXYNOS4: Fix wrong devname to support clkdev
  ARM: EXYNOS4: Use the correct regulator names on universal_c210
  ARM: SAMSUNG: Fix Section mismatch in samsung_bl_set()
  ARM: S5P64X0: Replace irq_gc_ack() with irq_gc_ack_set_bit()
2011-08-29 16:33:32 -07:00
Linus Torvalds 380dc20088 Merge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x
* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-3.x:
  ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
  ARM: mach-shmobile: sh7372 MSIOF clock support
  ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settings
  ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecter
  ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS
  ARM: mach-shmobile: mackerel: Add USB-DMA ID
  mmc: sdhi, mmcif: zboot: Correct clock disable logic
  ARM: mach-shmobile: ag5evm: SDHI requires waiting for idle
  ARM: static should be at beginning of declaration
  ARM: mach-shmobile: Use CMT2 for timer on sh7372
  ARM: mach-shmobile: sh7372: Add USB-DMAC support
2011-08-29 13:37:17 -07:00
Magnus Damm a408baea3c ARM: mach-shmobile: sh7372 CMT3 and CMT4 clock support
Add clock control support for sh7372 CMT hardware blocks.

No upstream sh7372 boards are making use of CMT3 + CMT4,
but the sh7372 hardware happens to come out of reset with
all CMT MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.

This patch relies on the recently merged

 794d78f drivers: sh: late disabling of clocks V2

to make sure the unused clocks get disabled as expected.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:41:02 +09:00
Magnus Damm 7ceb6666f0 ARM: mach-shmobile: sh7372 MSIOF clock support
Add clock control support for sh7372 MSIOF hardware blocks.

No upstream sh7372 boards are making use of MSIOF0->2,
but the sh7372 hardware happens to come out of reset with
all MSIOF MSTP clocks _enabled_, so to save power we need
to implement a fix in software to shut down unused clocks.

This patch relies on the recently merged

 794d78f drivers: sh: late disabling of clocks V2

to make sure the unused clocks get disabled as expected.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:39:58 +09:00
Kuninori Morimoto 6b4cb8ffe8 ARM: mach-shmobile: clock-sh7372: fixup USB-DMAC1 settings
USB-DMAC1 needs SMSTPCR4/MSTP407 controls, not MSTP214
this patch tested on mackerel board

Reported-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:37:38 +09:00
Kuninori Morimoto 86d84083cf ARM: mach-shmobile: clock-sh73a0: tidyup CKSCR main clock selecter
MAINCKSEL is [29:28], not [27:24]

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:22:39 +09:00
Magnus Damm 4861da4fee ARM: mach-shmobile: Remove 3DG/SGX from sh7372 INTCS
This patch removes support for the SGX interrupt source in
the sh7372 INTCS controller.

The SGX hardware block included in sh7372 is already hooked
up to the ARM Cortex-A8 core using the INTCA controller,
so SGX users are encouraged to make use of that interrupt
source instead.

Removing support for the SGX interrupt source in INTCS
simplifies the sh7372 power management code by allowing
us to assume that only INTCA needs to be powered on to
operate the SGX hardware.

If the INTCS interrupt source would be kept then the kernel
would be forced to deal with additional dependencies that does
not follow the regular power domain hiearachy. With this
patch in place we can safely power down INTCS while the
SGX is operating.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-08-29 16:13:10 +09:00
Paul Mundt 8a1c049aa9 Merge branch 'rmobile/dma' into rmobile-fixes-for-linus 2011-08-29 16:10:24 +09:00
Linus Torvalds c11a7e26f8 Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ARM: mach-shmobile: sh7372 LCDC1 suspend fix V2 (incremental)
  OMAP: omap_device: only override _noirq methods, not normal suspend/resume
  PM / Runtime: Correct documentation of pm_runtime_irq_safe()
  ARM: mach-shmobile: sh7372 LCDC1 suspend fix
  sh-sci / PM: Use power.irq_safe
  PM: Use spinlock instead of mutex in clock management functions
2011-08-28 10:05:39 -07:00
Russell King 2590415716 ARM: pm: avoid writing the auxillary control register for ARMv7
For ARMv7 kernels running in the non-secure world, writing to the
auxillary control register causes an abort, so we must avoid directly
writing the auxillary control register.  If the ACR has already been
reinitialized by SoC code, don't try to restore it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:54 +01:00
Russell King f35235a315 ARM: pm: some ARMv7 requires a dsb in resume to ensure correctness
Add a dsb after the isb to ensure that the previous writes to the
CP15 registers take effect before we enable the MMU.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:54 +01:00
Russell King 1c0270cd3a ARM: pm: arm920/926: fix number of registers saved
ARM920 and ARM926 save four registers, not three.  Fix the size of
the suspend region required.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:54 +01:00
Russell King 6f354e5f40 ARM: pm: CPU specific code should not overwrite r1 (v:p offset)
r1 stores the v:p offset from the CPU invariant resume code, and is
expected to be preserved by the CPU specific code.  Overwriting it is
not a good idea.

We've managed to get away with it on sa1100 platforms because most
happen to have PHYS_OFFSET == PAGE_OFFSET, but that may not be the
case depending on kernel configuration.  So fix this latent bug.

This fixes xsc3 as well which was saving and restoring this register
independently.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:53 +01:00
Will Deacon 0f81bb6b05 ARM: 7066/1: proc-v7: disable SCTLR.TE when disabling MMU
cpu_v7_reset disables the MMU and then branches to the provided address.
On Thumb-2 kernels, we should take care to clear the Thumb Exception
enable bit in the System Control Register, otherwise this may wreak
havok in the code to which we are branching (for example, an ARM kernel
image via kexec).

Reviewed-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:53 +01:00
Will Deacon 552e0c8da8 ARM: 7065/1: kexec: ensure new kernel is entered in ARM state
Commit 540b5738 ("ARM: 6999/1: head, zImage: Always Enter the kernel in
ARM state") mandates that the kernel should be entered in ARM state.

If a Thumb-2 kernel kexecs a new kernel image, we need to ensure that
we change state when branching to the new code. This patch replaces a
mov pc, lr with a bx lr on Thumb-2 kernels so that we transition to ARM
state if need be.

Reviewed-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-08-28 10:39:41 +01:00
Magnus Damm d0168fdc7a ARM: mach-shmobile: sh7372 LCDC1 suspend fix V2 (incremental)
This patch updates the recently submitted
"Associate the HDMI clock together with LCDC1 on sh7372"
to V2 with the following change:
 - Use lcdc1_device on AP4EVB to build properly.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-08-27 14:21:00 +02:00
NeilBrown f5b9409973 All Arch: remove linkage for sys_nfsservctl system call
The nfsservctl system call is now gone, so we should remove all
linkage for it.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-26 15:09:58 -07:00
Arnd Bergmann 039920ccdd Merge branch 'at91/fixes' of git+ssh://master.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc into fixes 2011-08-26 15:34:00 +00:00
Arnd Bergmann 966843eb43 Merge branch 'fixes' of git://git.jdl.com/software/linux-3.0 into fixes 2011-08-26 15:27:34 +00:00
Bryan Wu 9fc2071a65 ARM: mach-footbridge: add missing header file <video/vga.h>
This patch fixes following building error:
--
arch/arm/mach-footbridge/dc21285.c: In function 'dc21285_preinit':
arch/arm/mach-footbridge/dc21285.c:299:2: error: 'vga_base' undeclared (first use in this function)
arch/arm/mach-footbridge/dc21285.c:299:2: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [arch/arm/mach-footbridge/dc21285.o] Error 1
--

Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
2011-08-25 09:08:19 -05:00
Bryan Wu 158c0c623a ARM: mach-orion5x: add missing header file <linux/vga.h>
This patch fixed following building error:
--
arch/arm/mach-orion5x/pci.c: In function 'orion5x_pci_sys_setup':
arch/arm/mach-orion5x/pci.c:563:2: error: 'vga_base' undeclared (first use in this function)
arch/arm/mach-orion5x/pci.c:563:2: note: each undeclared identifier is reported only once for each function it appears in
make[1]: *** [arch/arm/mach-orion5x/pci.o] Error 1
make[1]: *** Waiting for unfinished jobs....
--

Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
2011-08-25 09:08:18 -05:00
Paul Gortmaker 5166793feb arm: fix compile failure in orion5x/dns323-setup.c
Upstream commit d5341942d7 "PCI: Make the
struct pci_dev * argument of pci_fixup_irqs const." leaked an extra
"const" into an actual call site (vs a proto/decl) which causes this:

arch/arm/mach-orion5x/dns323-setup.c: In function 'dns323_pci_map_irq':
arch/arm/mach-orion5x/dns323-setup.c:80: error: expected expression before 'const'
arch/arm/mach-orion5x/dns323-setup.c:80: error: too few arguments to function 'orion5x_pci_map_irq'
make[3]: *** [arch/arm/mach-orion5x/dns323-setup.o] Error 1

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
2011-08-25 09:07:31 -05:00