07 Feb, 2008
1 commit
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On the sam9 EK boards, the LCD backlight is hooked up to a PWM output from
the LCD controller. It's controlled by "contrast" registers though.This patch lets boards declare that they have that kind of backlight
control. The driver can then export this control, letting screenblank and
other operations actually take effect ... reducing the typically
substantial power drain from the backlight.Note that it's not fully cooked
- doesn't force backlight off during system suspend
- the "power" and "blank" events may not be done right
This should be easily added in the future.[nicolas.ferre@atmel.com: remove unneeded inline and rename functions]
Signed-off-by: David Brownell
Signed-off-by: Nicolas Ferre
Cc: Andrew Victor
Cc: Russell King
Cc: "Antonino A. Daplas"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
05 Feb, 2008
1 commit
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* at91:
[ARM] 4802/1: Fix typo and remove vague comment
[ARM] 4660/3: at91: allow selecting UART for early kernel messages
[ARM] 4739/1: at91sam9263: make gpio bank C and D irqs work* ixp:
[ARM] 4809/2: ixp4xx: Merge dsmg600-power.c into dsmg600-setup.c
[ARM] 4808/2: ixp4xx: Merge nas100d-power.c into nas100d-setup.c
[ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.c
[ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boards
[ARM] 4805/1: ixp4xx: Use leds-gpio driver instead of IXP4XX-GPIO-LED driver
[ARM] 4715/2: Ethernet support for IXDP425 boards
[ARM] 4714/2: Headers for IXP4xx built-in Ethernet and WAN drivers
[ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE features
[ARM] 4712/2: Adds functions to read and write IXP4xx "feature" bits
[ARM] 4774/2: ixp4xx: Register dsmg600 rtc i2c_board_info
[ARM] 4773/2: ixp4xx: Register nas100d rtc i2c_board_info
[ARM] 4772/2: ixp4xx: Register nslu2 rtc i2c_board_info
[ARM] 4769/2: ixp4xx: Button updates for the dsmg600 board
[ARM] 4768/2: ixp4xx: Button and LED updates for the nas100d board
[ARM] 4767/2: ixp4xx: Add bitops.h include to io.h
[ARM] 4766/2: ixp4xx: Update ixp4xx_defconfig, enabling all supported boards* master:
[ARM] 4810/1: - Fix 'section mismatch' building warnings
[ARM] xtime_seqlock: fix more ARM machines for xtime deadlocking
[ARM] 21285 serial: fix build error* misc:
[ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags* pxa:
[ARM] 4798/1: pcm027: fix missing header file
[ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
[ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
[ARM] pxa: introduce sysdev for pxa3xx static memory controller
[ARM] pxa: add preliminary suspend/resume code for pxa3xx
[ARM] pxa: introduce sysdev for GPIO register saving/restoring
[ARM] pxa: introduce sysdev for IRQ register saving/restoring
[ARM] pxa: fix the warning of undeclared "struct pxaohci_platform_data"
[ARM] pxa: change set_kset_name() to direct name assignment for MFP sysclass* realview:
[ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
[ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
[ARM] 4820/1: RealView: Select the timer IRQ at run-time
[ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
[ARM] 4818/1: RealView: Add core-tile detection
[ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
[ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
[ARM] 4815/1: RealView: Add clockevents suport for the local timers
[ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
[ARM] 4813/1: Add SMP helper functions for clockevents support
[ARM] 4812/1: RealView: clockevents support for the RealView platforms
[ARM] 4811/1: RealView: clocksource support for the RealView platforms
04 Feb, 2008
3 commits
-
Currently early kernel messages, i.e., those from uncompression, go to the
debugging UART. And if it is enabled in the platform configuration, but
not initialized by the bootloader, the machine hangs, waiting for UART
status change. Besides, having those messages on another UART - typically
the console UART - may be preferrable. This patch allows selecting the
UART in kernel configuration.Signed-off-by: Guennadi Liakhovetski
Acked-by: Andrew Victor
Signed-off-by: Russell King -
On the at91sam9263, IRQs for GPIO banks C and D don't currently work.
This is because banks C, D, and E share one clock and toplevel IRQ, but
the AT91 code setting up and handling GPIO IRQs expects no sharing.
This patch:- Fixes GPIO IRQ setup and handling to cope with GPIO banks that are
shared like on sam9263 chips, by setting up a list of those banks
and making the IRQ dispatching logic scan that list.- Precomputes the address of each bank's registers, saving it with
other per-bank data so that it no longer needs to be constantly
recomputed during IRQs and other GPIO operations. That shrinks
hot-path code, while helping the GPIO bank irq updates.- Fixes a minor bug where IRQ_TYPE_NONE was wrongly rejected (it just
means "use the default", which is "both edges" here).Signed-off-by: David Brownell
Acked-by: Andrew Victor
Signed-off-by: Russell King -
move update_process_times() out from under xtime_lock.
Signed-off-by: Peter Zijlstra
Signed-off-by: Russell King
02 Feb, 2008
1 commit
-
On ACPI systems the target state set by acpi_pm_set_target() is
reset by acpi_pm_finish(), but that need not be called if the
suspend fails. All platforms that use the .set_target() global
suspend callback are affected by analogous issues.For this reason, we need an additional global suspend callback that
will reset the target state regardless of whether or not the suspend
is successful. Also, it is reasonable to rename the .set_target()
callback, since it will be used for a different purpose on ACPI
systems (due to ACPI 1.0x code ordering requirements).Introduce the global suspend callback .end() to be executed at the
end of the suspend sequence and rename the .set_target() global
suspend callback to .begin().Signed-off-by: Rafael J. Wysocki
Signed-off-by: Len Brown
28 Jan, 2008
1 commit
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From: Nicolas Ferre
On the at92sam9263ek board, tell the input subsystem about the buttons.
This patch is taken from Andrew Victor's at91 patchset, then updated to
match the latest kernel code and to use labels printed on the board.Also update the at91sam9261ek buttons to cope with input changes.
Signed-off-by: David Brownell
Acked-by: Andrew Victor
Signed-off-by: Russell King
26 Jan, 2008
20 commits
-
Add support for the Atmel AT91CAP9A-DK Evaluation Kit board.
Signed-off-by: Stelian Pop
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Add support for Atmel's AT91CAP9 Customizable Microcontroller family.
Signed-off-by: Stelian Pop
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Currently the udc pullup is enabled by default on boot. If the device
is connected to a host at this time, the host starts the negotiation
before the udc/gadget driver is ready to handle it.Signed-off-by: Christian Glindkamp
Acked-by: David Brownell
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Add NEW_LEDs support for the following boards:
- Cogent CSB337
- Atmel AT91RM9200-DK
- Atmel AT91RM9200-EK
- Atmel AT91SAM9263-EKMostly based on patch from David Brownell.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Due to errata regarding the handling of SPI CS0 on the AT91RM9200, the
atmel_spi driver drives CS0 from the SPI controller and not as a GPIO
pin.
We therefore need to configure CS0 for use by the controllerSigned-off-by: Andrew Victor
Signed-off-by: Russell King -
Support for the 3 GPIO-connected buttons on the CSB300 board.
Based on wakeup testing code from David Brownell.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Move the LED initialization code out of the various *_devices.c files,
and into leds.c.
Also add support for NEW_LEDs.Patch from David Brownell.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Modify the UART initialization to allow the board-initialization code
to specify which pins are connected, and which pins should therefore
be initialized.The current at91_init_serial() will continue to work as-is, but is
marked as "deprecated" and will be removed once the board-specific
files has been updated to use the new interface.As in the AVR32 code, we assume that the TX and RX pins will always be
initialized.Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Cleanup the main AT91 makefile.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Map the complete memory region (SZ_256M) as is done on the other AT91
processors.The SMC_SMARTMEDIA bit should be set in the EBI controller to enable
the hardware NAND logic.
(Patch from Sascha Erlacher)Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Core support of the Atmel SSC library for all Atmel AT91 processors.
Based on David Brownell's initial patch for the AT91RM9200.
Signed-off-by: Andrew Victor
Acked-by: David Brownell
Signed-off-by: Russell King -
Replace hard-coded DMA mask (0xffffffff) with DMA_BIT_MASK(32) as
defined in dma-mapping.h.
Set "dma_mask" field for the UART platform_devices.Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Add platform_device and initialization for the RTT (Real Time Timer)
and WDT (Watchdog) integrated in the Atmel AT91SAM9 processors.For SAM9263, register both RTT peripherals.
[From: David Brownell ]Provide platform_resources for RTT peripherals
[From: David Brownell ]Add support for RTC peripheral on AT91SAM9RL (same RTC peripherals as
AT91RM9200)
[From: David Brownell ]Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Add support for the Image Sensor Interface (ISI) peripheral integrated
in the Atmel AT91SAM9263 processor.Patch from MaLiK
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Add support for STN LCD displays on Atmel AT91SAM9261-based boards.
Patch from Nicolas Ferre.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
On the at92sam9263ek board, tell the MACB driver the IRQ used
by its PHY. This patch is taken from Andrew Victor's 2.6.23-at91
patchset; it matches board schematics. (But it's currently a NOP
since the MACB driver doesn't yet use PHY irqs.)Signed-off-by: David Brownell
Signed-off-by: Russell King -
This makes HZ configurable on AT91, following the model used on OMAP.
It defaults to a power of two on AT91rm9200 chips, avoiding rounding
errors which come from dividing a 32 KiHz clock to generate scheduler
irqs; and uses 100 on AT91sam926x chips, using MCK/16 (multi-MHZ).Signed-off-by: David Brownell
Acked-by: Remy Bhmer
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Slight tweaking of the default interrupt priorities (AIC) for the
integrated peripherals on the AT91RM9200, AT91SAM9260, AT91SAM9261 and
AT91SAM9263 processors.Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Add STN LCD support on the Atmel AT91SAM9261-EK board.
Uses a black and white screen from Hitachi: SP06Q002.Signed-off-by: Nicolas Ferre
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
This patch adds a debug interface (if CONFIG_DEBUG_FS is selected) to
display the basic configuration and current state of the GPIO pins on
the Atmel AT91 processors.Signed-off-by: Andrew Victor
Signed-off-by: Russell King
07 Jan, 2008
1 commit
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- Add missing i2c_board_info struct for at91rm9200
Signed-off-by: Jan Altenberg
Acked-by: Andrew Victor
Signed-off-by: Russell King
27 Nov, 2007
3 commits
-
The incorrect GPIO pins are being initialized for the buttons on the
Atmel AT91SAM9261-EK board. This buggy configuration turns LCD screen
blue...Signed-off-by: Nicolas Ferre
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
The AT91 I2C driver is currently marked as "broken" due to hardware
issues. This patch enables AT91-based platforms to also use the
bitbanged GPIO for I2C.This updates platform setup logic (setting up an i2c-gpio device
using the same pins as the i2c-at91 device, unless only the BROKEN
driver is enabled).Also make use of the new-style initialization of I2C devices using
i2c_register_board_info().Signed-off-by: David Brownell
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
The calculation for the Master clock divisor (MDIV) is different on the
SAM9 processors than on the AT91RM9200.Orignal patch from Sascha Erlacher.
Also use the defined AT91_PMC_PRES instead of hard-coded bitmasks.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King
20 Oct, 2007
1 commit
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Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".Signed-off-by: Robert P. J. Day
Signed-off-by: Adrian Bunk
19 Oct, 2007
2 commits
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The name of 'struct pm_ops' suggests that it is related to the power
management in general, but in fact it is only related to suspend. Moreover,
its name should indicate what this structure is used for, so it seems
reasonable to change it to 'struct platform_suspend_ops'. In that case, the
name of the global variable of this type used by the PM core and the names of
related functions should be changed accordingly.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Cc: Len Brown
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Move the definition of 'struct pm_ops' and related functions from
to .There are, at least, the following reasons to do that:
* 'struct pm_ops' is specifically related to suspend and not to the power
management in general.
* As long as 'struct pm_ops' is defined in , any modification of it
causes the entire kernel to be recompiled, which is unnecessary and annoying.
* Some suspend-related features are already defined in , so it
is logical to move the definition of 'struct pm_ops' into there.
* 'struct hibernation_ops', being the hibernation-related counterpart of
'struct pm_ops', is defined in .Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Cc: Len Brown
Cc: Greg KH
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
13 Oct, 2007
6 commits
-
GENERIC_TIME and GENERIC_CLOCKEVENTS support for the at91rm9200.
- Oneshot mode (used for NO_HZ and high res timers) uses the
alarm to emulate a real oneshot timer; the trickiest bit is
how to avoid some lowlevel races. Thanks to Remy Bohmer for
various fixes to this code.- Tighten up periodic mode support using the PIT.
- Streamline reads of the 32KHz counter. Thanks to Marc Pignat
for some testing results: the CRTR register has *very* odd
behavior. The reread appears to work around stranger glitches
than just getting an old clock value (which would quickly
self-correct).- Remove the rounding-up of tick_usec to 10.009 msec (32KiHz/100),
since that no longer acts correct (time increases too fast).Note that the at91sam9 and at91x40 chips need other solutions,
since they don't have the same system timer module.Signed-off-by: David Brownell
Acked-by: Bill Gatliff
Acked-by:Remy Bohmer
Signed-off-by: Russell King -
Configuration support for the AT91x40 CPU and EB01 board.
Signed-off-by: Greg Ungerer
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Makefile build support for the Atmel AT91x40 CPU and EB01 board support.
Signed-off-by: Greg Ungerer
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Support for the Atmel EB01 board (based on the Atmel AT91x40 CPU).
Signed-off-by: Greg Ungerer
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Prototypes for the at91x40 CPU support functions.
Signed-off-by: Greg Ungerer
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Interrupt setup support for the Atmel AT91x40 CPU family.
Signed-off-by: Greg Ungerer
Acked-by: Andrew Victor
Signed-off-by: Russell King
