Commit Graph

372 Commits

Author SHA1 Message Date
Russell King
0f7b332f97 ARM: consolidate SMP cross call implementation
Rather than having each platform class provide a mach/smp.h header for
smp_cross_call(), arrange for them to register the function with the
core ARM SMP code instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23 16:53:17 +01:00
Linus Torvalds
710421cc7d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (346 commits)
  ASoC: core: Don't set "(null)" as a driver name
  ALSA: hda - Use LPIB for ATI/AMD chipsets as default
  Revert "ALSA: hda - Use position_fix=3 as default for AMD chipsets"
  ASoC: Tegra: Fix compile when debugfs not enabled
  ASoC: spdif-dit: Add missing MODULE_*
  SOUND: OSS: Remove Au1550 driver.
  ALSA: hda - add Intel Panther Point HDMI codec id
  ALSA: emu10k1 - Add dB range to Bass and Treble for SB Live!
  ALSA: hda - Remove PCM mixer elements from Virtual Master of realtek
  ALSA: hda - Fix input-src parse in patch_analog.c
  ASoC: davinci-mcasp: enable ping-pong SRAM buffers
  ASoC: add iPAQ hx4700 machine driver
  ASoC: Asahi Kasei AK4641 codec driver
  ALSA: hda - Enable Realtek ALC269 codec input layer beep
  ALSA: intel8x0m: enable AMD8111 modem
  ALSA: HDA: Add jack detection for HDMI
  ALSA: sound, core, pcm_lib: fix xrun_log
  ASoC: Max98095: Move existing NULL check before pointer dereference.
  ALSA: sound, core, pcm_lib: xrun_log: log also in_interrupt
  ALSA: usb-audio - Add support for USB X-Fi S51 Pro
  ...
2011-05-23 08:52:38 -07:00
Takashi Iwai
7ec298dfef Merge branch 'topic/asoc' into for-linus 2011-05-22 10:01:33 +02:00
Catalin Marinas
a904f5f9eb ARM: 6870/1: The mandatory barrier rmb() must be a dsb() in for device accesses
Since mandatory barriers may be used (explicitly or implicitly via readl
etc.) to ensure the ordering between Device and Normal memory accesses,
a DMB is not enough. This patch converts it to a DSB.

Cc: Colin Cross <ccross@android.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12 10:52:00 +01:00
Rakesh Iyer
baafb43537 Input: tegra-kbc - change wakeup logic to be all or nothing
Tegra hardware design cannot reliably support an arbitrary set of keys
waking up the system. Modify wakeup logic so either any key wakes the
system up or none will do.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-05-11 14:31:09 -07:00
Colin Cross
4bd66cfde5 ARM: tegra: irq: Add tegra_eoi
Implement irq_eoi to allow the GIC irq chip flow controller to
be changed to fasteoi.

Signed-off-by: Colin Cross <ccross@android.com>
2011-05-11 16:04:16 +01:00
Colin Cross
d1d8c66668 ARM: tegra: irq: Move legacy_irq.c into irq.c
Now that irq.c is just an interface layer between the gic
and legacy_irq.c, move the contents of legacy_irq.c into
irq.c.

Signed-off-by: Colin Cross <ccross@android.com>
2011-05-11 16:04:16 +01:00
Colin Cross
4dda2d384b ARM: tegra: irq: Remove PM support
Tegra PM irq support is being improved, remove it for now
until the rest of the platform gets PM support.

Signed-off-by: Colin Cross <ccross@android.com>
2011-05-11 16:04:16 +01:00
Colin Cross
938fa349fb ARM: tegra: irq: convert to gic arch extensions
Replace the ugly hack that inserts legacy irq controller calls
into the irq call paths by reading and replacing the gic irq
chip with the new gic arch extensions.

Signed-off-by: Colin Cross <ccross@android.com>
2011-05-11 16:04:16 +01:00
Will Deacon
98022940c2 ARM: tegra: update GPIO chained IRQ handler to use entry/exit functions
This patch updates the Tegra gpio chained IRQ handler to use the chained
IRQ enter/exit functions in order to function correctly on primary
controllers with different methods of flow control.

This is required for the GIC to move to fasteoi interrupt handling.

Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-05-11 16:04:15 +01:00
Rakesh Iyer
34abeeb235 Input: tegra-kbc - add ghost key filter
Add ghost key filtering support for the Nvidia Tegra matrix keyboard.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-04-27 23:19:14 -07:00
Jiri Kosina
07f9479a40 Merge branch 'master' into for-next
Fast-forwarded to current state of Linus' tree as there are patches to be
applied for files that didn't exist on the old branch.
2011-04-26 10:22:59 +02:00
Stephen Warren
47912a657e ARM: Tegra: select MACH_HAS_SND_SOC_TEGRA_WM8903
CONFIG_SND_SOC_TEGRA_WM8903 is useful for many Tegra boards. To avoid the
ASoC tegra/Kconfig enumerating them all, instead have the Tegra machine
Kconfig select MACH_HAS_SND_SOC_TEGRA_WM8903 where appropriate, and have
SND_SOC_TEGRA_WM8903 depend on this.

[Redid ASoC diff so it applies. -- broonie]

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-04-21 11:57:31 +01:00
Stephen Warren
61a6d0764b ARM: Tegra: Add to tegra_wm8903_platform_data
Seaboard derivate Kaen has a GPIO to mute the headphone output. Add a field
to tegra_wm8903_platform_data so the board files can pass the GPIO number
for that to the ASoC machine driver.

Also, initialize this new field to a "not present" value for Harmony.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-04-18 17:55:58 +01:00
Stephen Warren
7b33af252f ASoC: Tegra: Rename pdev tegra-snd-harmony to tegra-snd-wm8903
Soon, this machine driver will be updated to handle a number of Tegra boards
using the WM8903 codec. Rename the platform device in advance to reflect this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-04-18 17:54:09 +01:00
Stephen Warren
4651d55668 ARM: Tegra: Rename harmony_audio.h -> tegra_wm8903_pdata.h
The audio driver will soon support more than just the Tegra Harmony board.
Rename the platform data header file and data type to reflect this.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-04-18 17:54:05 +01:00
Linus Torvalds
e82e6f16a8 Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
  arm: tegra: fix error check in tegra2_clocks.c
  ARM: tegra: gpio: Fix unused variable warnings
2011-04-15 20:19:17 -07:00
Justin P. Mattock
6eab04a876 treewide: remove extra semicolons
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-04-10 17:01:05 +02:00
Nicolas Kaiser
906c3b616d arm: tegra: fix error check in tegra2_clocks.c
Checking 'rate < 0' doesn't work because 'rate' is unsigned.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-04-01 13:32:25 -07:00
Lucas De Marchi
25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Colin Cross
c8309ef6a4 ARM: tegra: gpio: Fix unused variable warnings
Change b0f18edaf6
(arm: tegra: Remove unused bogus irq enable/disable magic)
introduces warnings:
arch/arm/mach-tegra/gpio.c: In function 'tegra_gpio_resume':
arch/arm/mach-tegra/gpio.c:260: warning: unused variable 'i'
arch/arm/mach-tegra/gpio.c: In function 'tegra_gpio_suspend':
arch/arm/mach-tegra/gpio.c:283: warning: unused variable 'i'

Fix them, and fix a coding style issue on the same lines.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Erik Gilling <konkers@konkers.net>
2011-03-30 12:37:53 -07:00
Thomas Gleixner
f38c02f3b3 arm: Fold irq_set_chip/irq_set_handler
Use irq_set_chip_and_handler() instead. Converted with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:47:58 +02:00
Thomas Gleixner
6845664a6a arm: Cleanup the irq namespace
Convert to the new function names. Automated with coccinelle.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:47:57 +02:00
Thomas Gleixner
1475b85d08 arm: Use genirq lockdep helper to set lock class
Remove the open coded access to irq_desc which will fail on sparse irq
and use the proper wrappers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29 14:47:52 +02:00
Thomas Gleixner
b0f18edaf6 arm: tegra: Remove unused bogus irq enable/disable magic
The core code handles thees already.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Colin Cross <ccross@android.com>
Cc: linux-tegra@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
2011-03-29 14:47:52 +02:00
Linus Torvalds
6e50e9f9f4 Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
  ARM: tegra: harmony: initialize the TPS65862 PMIC
  ARM: tegra: update defconfig
  ARM: tegra: harmony: update PCI-e initialization sequence
  ARM: tegra: trimslice: enable MMC/SD slots
  ARM: tegra: enable new drivers in defconfig
  ARM: tegra: Add Toshiba AC100 support
  ARM: tegra: harmony: Set WM8903 gpio_base
  ARM: tegra: harmony: I2C-related portions of audio support
  ARM: tegra: harmony: register i2c devices
  ARM: tegra: seaboard: register i2c devices
  ARM: tegra: harmony: Beginnings of audio support
  ARM: tegra: create defines for SD-related GPIO names
  ARM: tegra: add devices.c entries for audio
2011-03-24 09:33:14 -07:00
Russell King
196f020fbb Merge branches 'fixes', 'pgt-next' and 'versatile' into devel 2011-03-20 09:32:12 +00:00
Olof Johansson
2f40ea9d07 Merge branch 'trimslice/upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux-tegra into boards-for-next 2011-03-16 23:08:22 -07:00
Linus Torvalds
16d8775700 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (91 commits)
  ARM: 6806/1: irq: introduce entry and exit functions for chained handlers
  ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas
  ARM: 6747/1: P2V: Thumb2 support
  ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump
  ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode
  ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9
  ARM: 6772/1: errata: possible fault MMU translations following an ASID switch
  ARM: 6776/1: mach-ux500: activate fix for errata 753970
  ARM: 6794/1: SPEAr: Append UL to device address macros.
  ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files
  ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros
  ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code
  ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry
  ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci
  ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h
  ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files.
  ARM: 6681/1: SPEAr: add debugfs support to clk API
  ARM: 6703/1: SPEAr: update clk API support
  ARM: 6679/1: SPEAr: make clk API functions more generic
  ARM: 6737/1: SPEAr: formalized timer support
  ...
2011-03-16 19:03:06 -07:00
Russell King
05e3475451 Merge branch 'p2v' into devel
Conflicts:
	arch/arm/kernel/module.c
	arch/arm/mach-s5pv210/sleep.S
2011-03-16 23:35:27 +00:00
Linus Torvalds
971f115a50 Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (172 commits)
  USB: Add support for SuperSpeed isoc endpoints
  xhci: Clean up cycle bit math used during stalls.
  xhci: Fix cycle bit calculation during stall handling.
  xhci: Update internal dequeue pointers after stalls.
  USB: Disable auto-suspend for USB 3.0 hubs.
  USB: Remove bogus USB_PORT_STAT_SUPER_SPEED symbol.
  xhci: Return canceled URBs immediately when host is halted.
  xhci: Fixes for suspend/resume of shared HCDs.
  xhci: Fix re-init on power loss after resume.
  xhci: Make roothub functions deal with device removal.
  xhci: Limit roothub ports to 15 USB3 & 31 USB2 ports.
  xhci: Return a USB 3.0 hub descriptor for USB3 roothub.
  xhci: Register second xHCI roothub.
  xhci: Change xhci_find_slot_id_by_port() API.
  xhci: Refactor bus suspend state into a struct.
  xhci: Index with a port array instead of PORTSC addresses.
  USB: Set usb_hcd->state and flags for shared roothubs.
  usb: Make core allocate resources per PCI-device.
  usb: Store bus type in usb_hcd, not in driver flags.
  usb: Change usb_hcd->bandwidth_mutex to a pointer.
  ...
2011-03-16 15:04:26 -07:00
Linus Torvalds
0bbf211975 Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
* 'for-linus' of git://android.git.kernel.org/kernel/tegra: (61 commits)
  ARM: tegra: trimslice: initialize PCI-e only when running on TrimSlice
  ARM: tegra: add PCI Express power gating
  ARM: tegra: PCIE minor code refactoring
  ARM: Tegra: DMA: Fail safe if initialization fails
  ARM: Tegra: Rename clk_dev1/2 to cdev1/2
  ARM: Tegra: Rename I2S clocks to match driver name
  ARM: Tegra: Make tegra_dma_init a postcore_initcall
  ARM: tegra: add seaboard, wario and kaen boards
  ARM: tegra: harmony: fix pinmux for MMC slot
  ARM: tegra: harmony: register sdhci devices
  ARM: tegra: remove stale nvidia atag handler
  ARM: tegra: common device resources
  ARM: tegra: harmony: move over to tegra_gpio_config
  ARM: tegra: add tegra_gpio_table and tegra_gpio_config
  ARM: tegra: Hide EMC scaling config behind ARCH_TEGRA
  ARM: tegra: Fix typo in TEGRA_IRQ_TO_GPIO
  ARM: tegra: common: Enable core clocks
  ARM: tegra: timer: Enable timer and rtc clocks
  ARM: tegra: Move tegra_common_init to tegra_init_early
  ARM: tegra: clock: prevent accidental disables of cpu clock
  ...
2011-03-16 10:49:02 -07:00
Mike Rapoport
6f168f2fa6 ARM: tegra: harmony: initialize the TPS65862 PMIC
Initialize the PMIC voltage regulators and provide the supply map for
PCI-e clock supply. The rest of the supplies should be added together
with the drivers that use them.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
CC: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-15 14:28:35 -07:00
Mike Rapoport
ce005cf450 ARM: tegra: harmony: update PCI-e initialization sequence
On Harmony board PCI-e subsystem can be enabled only after certain
voltage regulators are on. One of the regulators is an internal
regulator on the PMIC and another one is controlled by a PMIC GPIO.
Addition of the voltage control to the Harmony PCI-e initialization
allows booting of kernel with CONFIG_TEGRA_PCI even if the PMIC driver
is not loaded. In this case the PCI-e initialization will fail
gracefully intead of hanging the system.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-15 14:28:32 -07:00
Benoit Goby
91525d084e ARM: tegra: Add support for Tegra USB PHYs
Interface used by Tegra's gadget driver and ehci driver
to power on and configure the USB PHYs.

Signed-off-by: Benoit Goby <benoit@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-03-11 14:22:11 -08:00
Mike Rapoport
f02726a779 ARM: tegra: trimslice: enable MMC/SD slots
TrimSlice has MicroSD and standard MMC/SD slots.
Register sdhci devices and enable GPIOs for MMC/SD slot.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
2011-03-08 09:50:06 +02:00
Marc Dietrich
65b935aa99 ARM: tegra: Add Toshiba AC100 support
This patch adds the config infrastructure, the pinmux and basic
board setup code for PAZ00 (name of board inside the AC100/AZ).

Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-07 15:44:34 -08:00
Stephen Warren
06fc9a3005 ARM: tegra: harmony: Set WM8903 gpio_base
This is the final patch to enable audio support on Harmony. It additionally
relies on the latest ASoC branch being merged in, which provides the header
defining the gpio_base field in the WM8903 platform data.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-07 15:44:33 -08:00
Stephen Warren
fba3b2fc1b ARM: tegra: harmony: I2C-related portions of audio support
This patch is the portion of the audio-related setup that relies additionally
on the latest Tegra I2C driver being merged.

* Define platform data for WM8903 audio codec
* Register WM8903 as an I2C device

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-07 15:44:32 -08:00
Olof Johansson
de4855d928 ARM: tegra: harmony: register i2c devices
Register the base i2c busses on harmony. Devices coming at a later date,
but this allows for hand-probing of some of them at least.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
2011-03-07 15:44:32 -08:00
Olof Johansson
f9a795af4d ARM: tegra: seaboard: register i2c devices
Register the base i2c devices on seaboard. A few more are pending,
but it's a start.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
2011-03-07 15:44:09 -08:00
Stephen Warren
ef2b1a0f1e ARM: tegra: harmony: Beginnings of audio support
This change includes everything required to enable audio on Harmony, except
those parts which rely on code not currently in Tegra's for-next branch, i.e.
except those parts which rely on merges of the Tegra I2C driver or latest
ASoC subsystem.

* Define GPIO names for audio-related GPIOs
* Set up platform data and platform device for ASoC machine driver
* Register audio-related platform devices
* Initialize audio-related clocks
* Correctly configure pinmux and GPIO enables for audio-related pins

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-07 15:34:25 -08:00
Stephen Warren
986afbe493 ARM: tegra: create defines for SD-related GPIO names
This ensures they're kept in sync between platform_data definitions and
the GPIO table initialization.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-07 15:34:25 -08:00
Stephen Warren
b9652c2d12 ARM: tegra: add devices.c entries for audio
For I2S, DAS, PCM devices

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2011-03-07 15:34:24 -08:00
Mike Rapoport
d5fdafd38c ARM: tegra: trimslice: initialize PCI-e only when running on TrimSlice
Currently tegra_pcie_init is effectively called as subsys_initcall. With
multiplatform kernel this may cause hangs on boards that don't intend to
support Tegra2 PCI-e. Ensure that TrimSlice board code initializes PCI-e
only when actually running on the TrimSlice.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
2011-03-03 13:57:31 -08:00
Mike Rapoport
b96cc7fe19 ARM: tegra: add PCI Express power gating
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
2011-03-03 13:57:07 -08:00
Mike Rapoport
1e40a97e6c ARM: tegra: PCIE minor code refactoring
Move tegra_pcie_power_off before tegra_pcie_power_on for clean addition
of PCIE power gating

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
2011-03-03 13:56:08 -08:00
Linus Torvalds
57949e8006 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: serio/gameport - use 'long' system workqueue
  Input: synaptics - document 0x0c query
  Input: tegra-kbc - add function keymap
2011-02-23 14:44:25 -08:00
Stephen Warren
ccac05152e ARM: Tegra: DMA: Fail safe if initialization fails
tegra_dma_init currently simply bails out early if any initialization fails.
This skips various data-structure initialization. In turn, this means that
tegra_dma_allocate_channel can still hand out channels. In this case, when
tegra_dma_free_channel is called, which calls tegra_dma_cancel, the walking
on ch->list will OOPS since the list's next/prev pointers may still be
NULL.

To solve this, add an explicit "initialized" flag, only set this once _init
has fully completed successfully, and have _allocate_channel refuse to hand
out channels if this is not set.

While at it, simplify _init:
* Remove redundant memsets
* Use bitmap_fill to mark all channels as in-use up-front, and remove
  some now-redundant bitmap initialization loops.
* Only mark a channel as free once all channel-related initialization has
  completed.

Finally, the successful exit path from _init always has ret==0, so just
hard-code that return. The error path still returns ret.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-23 14:06:03 -08:00
Stephen Warren
ddb7d5d80e ARM: Tegra: Rename clk_dev1/2 to cdev1/2
The ASoC machine driver was written assuming my previous patch to add
complete support for these clocks, which named them cdev1/2. Rename
the clocks to match that, to avoid churn in the ASoC driver.

This rename also makes the clocks more consistent with other Tegra
clocks irrespective of any of that.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-23 14:00:11 -08:00
Stephen Warren
3c106bf5b3 ARM: Tegra: Rename I2S clocks to match driver name
The driver is tegra-i2s not just i2s. Rename the clocks to match, so that
clk_get_sys can look up by driver name.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-23 14:00:11 -08:00
Stephen Warren
dc54c23bb0 ARM: Tegra: Make tegra_dma_init a postcore_initcall
The following commit makes the Tegra APB DMA engine fail to initialize
correctly: 0cf6230af9
ARM: tegra: Move tegra_common_init to tegra_init_early

The reason is that tegra_init_early_ calls tegra_dma_init which calls
request_threaded_irq, which fails since the IRQ hasn't yet been marked
valid; that only happens in tegra_init_irq, which gets called after
tegra_init_early.

This used to work OK, since tegra_init_early was tegra_common_init, which
got called after tegra_init_irq, basically from the beginning of
tegra_harmony_init.

Solve this by converting tegra_dma_init to a postcore_initcall. This makes
it execute late enough that IRQs are marked valid, and avoids having to
add it back to every machine's init function.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-23 14:00:11 -08:00
Santosh Shilimkar
af90f10d38 ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime
The current code support of dummy timers in absence of local
timer is compile time. This is an attempt to convert it to runtime
so that on few SOC version if the local timers aren't supported
kernel can switch to dummy timers. OMAP4430 ES1.0 does suffer from
this limitation.

This patch should not have any functional impact on affected
files.

Cc: Daniel Walker <dwalker@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Colin Cross <ccross@android.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-23 17:54:27 +00:00
Olof Johansson
d9a51fe75d ARM: tegra: add seaboard, wario and kaen boards
This adds board support for the Seaboard eval platform and some of the
derivatives that are very similar. Since they only differ in some very
minor ways, most of the code is shared.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
2011-02-22 17:28:14 -08:00
Olof Johansson
8c396604d5 ARM: tegra: harmony: fix pinmux for MMC slot
Turns out MMC2 (the bayonet 4-lane port) wasn't enabled in the
original pinmux. Fix that.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
2011-02-22 17:28:13 -08:00
Olof Johansson
875d4af6a3 ARM: tegra: harmony: register sdhci devices
Add the 3 sdhci devices that are available on Harmony as
platform devices. Two go to slots (one 4-lane, one 8-lane),
and one goes to onboard wifi.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
2011-02-22 17:28:12 -08:00
Olof Johansson
ec243a071d ARM: tegra: remove stale nvidia atag handler
Remove dead atag handling code for nvidia-specific tags.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
2011-02-22 17:28:12 -08:00
Olof Johansson
85940b4a17 ARM: tegra: common device resources
Add a common location to register resources for used on-chip devices
that are commonly configured on boards. Devices will be added to this file
as more drivers are added that can make use of them.

This is based on work contributed by several people, most of it from
Colin Cross and Erik Gilling.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
2011-02-22 17:28:11 -08:00
Olof Johansson
0ec1b606c0 ARM: tegra: harmony: move over to tegra_gpio_config
Move harmony over to use the new gpio config table instead of having
separate settings in various parts of the code.

(The tegra sdhci driver should have the tegra_gpio_* ops removed, but
that will be done separately from this change.)

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Erik Gilling <konkers@android.com>
2011-02-22 17:28:06 -08:00
Olof Johansson
632095ea15 ARM: tegra: add tegra_gpio_table and tegra_gpio_config
To give one place to setup the pins that are used as GPIOs instead
of as their pinmuxed functions. Specifying enabled as false explicitly
disables the gpio mode of that pin (if left on by firmware).

This should remove the need for calling these from specific drivers and
thus reduce tegra-specific code from them.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Erik Gilling <konkers@android.com>
2011-02-22 17:27:11 -08:00
Mark Brown
38376866a1 ARM: tegra: Hide EMC scaling config behind ARCH_TEGRA
The option isn't terribly useful on other ARM platforms.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-22 14:48:44 -08:00
Stephen Warren
e19e881fcb ARM: tegra: Fix typo in TEGRA_IRQ_TO_GPIO
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-22 14:48:42 -08:00
Colin Cross
cd51d0edec ARM: tegra: common: Enable core clocks
Enable the cpu, emc (memory controller) and csite (debug and
trace controller) clocks during init to prevent them from
being disabled by the bootloader clock disabling code.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
2011-02-22 14:48:37 -08:00
Colin Cross
62248ae826 ARM: tegra: timer: Enable timer and rtc clocks
Enable the timer and rtc clocks to prevent them being
turned off by the bootloader clock disabling code.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
2011-02-22 14:48:27 -08:00
Colin Cross
0cf6230af9 ARM: tegra: Move tegra_common_init to tegra_init_early
Move tegra_common_init to tegra_init_early, and set it
as the init_early entry in the machine struct.
Initializes the clocks earlier so that timers can enable
their clocks.

Also reorders the members in the Harmony and Trimslice
boards' machine structs to match the order they are
called in.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
2011-02-22 11:25:12 -08:00
Colin Cross
1be3d05375 ARM: tegra: clock: prevent accidental disables of cpu clock
Peripheral clocks that have no clock enable bit in the
enable registers have their clk_num set to 0.  Bit 0
in the clock enable registers is the CPU clock.
Prevent disables on these peripheral clocks from
accidentally disabling the CPU clock.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
2011-02-22 11:25:07 -08:00
Colin Cross
421186e710 ARM: tegra: clock: Round rate before setting rate
Call the clock's round_rate op, if it exists, before calling
the set_rate op.  This will help later when dvfs is added,
dvfs needs to know what the final rate will be before the
frequency changes.

Also requires fixes to the round rate functions to ensure
calling round rate and then set rate will not cause the
frequency to be rounded down twice.  When picking clock
divider values, the clock framework picks the closest
frequency that is lower than the requested frequency.  If
the new frequency calculated from the divider value is
rounded down, and then passed to set_rate, it will get
rounded down again, possibly resulting in a frequency two
steps lower than the original requested frequency.

Fix the problem by rounding up when calculating the frequency
coming out of a clock divider, so if that frequency is
requested again, the same divider value will be picked.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
2011-02-22 11:22:34 -08:00
Colin Cross
78f379b574 ARM: tegra: clock: Refcount periph clock enables
Some peripheral clocks share enable bits.  Refcount the enables so
that calling clk_disable on one clock will not turn off another
clock.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
2011-02-22 11:22:24 -08:00
Colin Cross
9c7dc562cd ARM: tegra: clock: Miscellaneous clock updates
Correct max rates for pclk and sclk (Originally fixed by
  Dima Zavin <dima@android.com>)

Correct max rate for plla (Originally fixed by
  Stephen Warren <swarren@nvidia.com>)

Remove unnecessary no-op set_rate on audio clocks

Add clock lookup entries for grhost, bsea, and vde clocks

Update clock clookup entries for vcp, bsea, and vde clocks

Add shared clock entries for sclk and emc

Add a virtual cop clock to provide a reset op (Originally fixed by
  Dima Zavin <dima@android.com>)

Pass set_rate on super clocks through to parent

Fix pllx frequency table entry for 608 MHz

Remove incorrect plla frequency table entries

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:16:48 -08:00
Colin Cross
c2f44a9df9 ARM: tegra: clock: Fix clock issues in suspend
The PLLP registers are now being restored by the low-level resume code,
and the CPU may be running off PLLP, so don't touch them during clock
resume.

Save plld, plls, pllu, and audio clock during suspend (originally
fixed by Mayuresh Kulkarni <mkulkarni@nvidia.com>)

The lock time for plld is 1000 us, so increase the delay after
setting the PLLs.

Add a BUG_ON to ensure the size of the suspend context area is
correct.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:16:47 -08:00
Colin Cross
9743b38969 ARM: tegra: clock: Add function to set SDMMC tap delay
The SDMMC controllers have extra bits in the clock source
register that adjust the delay between the clock and data
to compenstate for delays on the PCB.  The values need to
be set from the clock code so the clock can be locked
during the read-modify-write on the clock source register.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:16:47 -08:00
Colin Cross
7a28128412 ARM: tegra: cpufreq: Adjust memory frequency with cpu frequency
Adjusts the minimum memory frequency when the cpu frequency
changes.  The values are currently hardcoded to a reasonable
default.  If memory frequency scaling is not enabled this
patch will have no effect.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:16:46 -08:00
Colin Cross
6d2968284f ARM: tegra: clocks: Add emc scaling
Add clock ops on the emc peripheral clock that call into the
emc driver to update the memory controller registers for the
new frequency.  Tegra has an interlock between the clock
controller and the memory controller that prevents the new
register values from taking effect until the clock frequency
update occurs.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:16:45 -08:00
Colin Cross
efdf72ad5c ARM: tegra: Add external memory controller driver
The frequency memory bus on Tegra can be adjusted without
disabling accesses to memory by updating the memory
configuration registers from a per-board table, and then
changing the clock frequency.  The clock controller and
memory controller have an interlock that prevents the
new memory registers from taking effect until the
clock frequency change.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:16:45 -08:00
Colin Cross
4db4afb4df ARM: tegra: clock: Minor cleanups
Remove unnecessary uses of #ifdef CONFIG_DEBUG_FS
Convert bool assignments from 1 to true

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:46 -08:00
Colin Cross
310992ca4b ARM: tegra: clock: Add shared bus clock type
Some clocks may have multiple downstream users that need to request a
higher clock rate.  Shared bus clocks provide a unique shared_bus_user
clock to each user.  The frequency of the bus is set to the highest
enabled shared_bus_user clock, with a minimum value set by the
shared bus.  Drivers can use clk_enable and clk_disable to enable
or disable their requirement, and clk_set_rate to set the minimum rate.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:46 -08:00
Colin Cross
89a5fb84da ARM: tegra: cpufreq: Take an extra reference to pllx
During cpu frequency changes, take an extra reference to pllx so
that it doesn't turn off and on while the cpu is temporarily on
pllp.  If the cpu is moved to pllp permanently, pllx will be
turned off.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:45 -08:00
Colin Cross
4729fd7a7d ARM: tegra: clock: Convert global lock to a lock per clock
Give each clock its own lock, and remove all lock traversals from
parent to child clocks to prevent AB-BA deadlocks.

This brings the locking in line with the common struct clk
patches and should make conversion simple.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:43 -08:00
Colin Cross
f151961173 ARM: tegra: clock: Move unshared clk struct members into union
Creates a union of a struct for each type of clock to reduce memory
usage and clarify which members are used by all clocks and which are
used by a single type.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:11 -08:00
Colin Cross
3ec349fbf1 ARM: tegra: clock: Rearrange static clock tables
Make the static clocks look more like the array of clocks
so they can all be initalized with the same helper function.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:10 -08:00
Colin Cross
41cfe3676d ARM: tegra: clock: Drop CPU dvfs
The existing version did not extend well to core dvfs, drop it
for now until the new clk api with clk_prepare and clk_unprepare
is ready and non-atomic clocks are possible.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:10:06 -08:00
Colin Cross
f035530b79 ARM: tegra: clock: Initialize clocks that have no enable
Assume that any clock that has no enable op is always on.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-21 00:09:12 -08:00
Colin Cross
35c47c3bba ARM: tegra: clock: Don't use PLL lock bits
The PLL lock bits are not reliable, use per-PLL timeouts instead.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-20 23:36:50 -08:00
Colin Cross
bd41ef55e8 ARM: tegra: clock: Drop debugging
Drop the unnecessary pr_debug calls to avoid having to maintain them.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-20 23:36:50 -08:00
Colin Cross
14133add42 ARM: tegra: clock: Don't BUG on changing an enabled PLL
When updating the CPU PLL frequency, keeping the PLL enabled avoids
ramping the PLL all the way down and back up again.  Remove the BUG_ON
in tegra2_pll_clk_set_rate to allow the rate to change while the PLL
is enabled.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-20 23:36:50 -08:00
Dima Zavin
2b84cb4faa ARM: tegra: clock: enable clk reset for non-peripheral clocks
Add a new 'reset' clk op. This can be provided for any clock,
not just peripherals.

Signed-off-by: Dima Zavin <dima@android.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-20 23:36:49 -08:00
Simon Glass
375b19cd34 ARM: tegra: Fix hang on reboot
This seems to be a regression in 2.6.37.

We cannot use writel() here since the resulting wmb() calls l2x0_cache_sync()
which uses a spinlock and L1 cache may be off at this point.

http://lists.infradead.org/pipermail/linux-arm-kernel/2011-February/041909.html

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-20 20:04:16 -08:00
Stephen Warren
1ca00347c5 ARM: tegra: APB DMA: Enable clock and remove reset.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-20 20:04:15 -08:00
Stephen Warren
499ef7a5c4 ARM: tegra: Prevent requeuing in-progress DMA requests
If a request already in the queue is passed to tegra_dma_enqueue_req,
tegra_dma_req.node->{next,prev} will end up pointing to itself instead
of at tegra_dma_channel.list, which is the way a the end-of-list
should be set up. When the DMA request completes and is list_del'd,
the list head will still point at it, yet the node's next/prev will
contain the list poison values. When the next DMA request completes,
a kernel panic will occur when those poison values are dereferenced.

This makes the DMA driver more robust in the face of buggy clients.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-19 14:35:52 -08:00
Colin Cross
fe92a026e3 Merge branch 'tegra-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into outside-for-next 2011-02-19 14:35:16 -08:00
Rakesh Iyer
4e8b65f606 Input: tegra-kbc - add function keymap
Add Fn keymap support to allow for internal processing of Fn keys.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-02-18 08:39:03 -08:00
Russell King
f4117ac9e2 ARM: P2V: separate PHYS_OFFSET from platform definitions
This uncouple PHYS_OFFSET from the platform definitions, thereby
facilitating run-time computation of the physical memory offset.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Magnus Damm <damm@opensource.se>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Jiandong Zheng <jdzheng@broadcom.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-17 23:26:55 +00:00
Mike Rapoport
cca414b263 ARM: tegra: add TrimSlice board
Add basic support for CompuLab TrimSlice platform

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 18:36:51 -08:00
Colin Cross
535371c3fb ARM: tegra: Use writel_relaxed in tegra_init_cache
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 17:50:43 -08:00
Colin Cross
5789fee934 ARM: tegra: dma: Fix critical data corruption bugs
Sometimes, due to high interrupt latency in the continuous mode
of DMA transfer, the half buffer complete interrupt is handled
after DMA has transferred the full buffer.  When this is detected,
stop DMA immediately and restart with the next buffer if the next
buffer is ready.

originally fixed by Victor(Weiguo) Pan <wpan@nvidia.com>

In place of using the simple spin_lock()/spi_unlock() in the
interrupt thread, using the spin_lock_irqsave() and
spin_unlock_irqrestore(). The lock is shared between the normal
process context and interrupt context.

originally fixed by Laxman Dewangan (ldewangan@nvidia.com)

The use of shadow registers caused memory corruption at physical
address 0 because the enable bit was not shadowed, and assuming it
needed to be set would enable an unconfigured dma block.  Most of the
register accesses don't need to know the previous state of the
registers, and the few places that do need to modify only a few bits
in the registers are the same ones that were sometimes incorrectly
setting the enable bit.  This patch convert tegra_dma_update_hardware
to set the entire register, and the other users to read-modify-write,
and drops the shadow registers completely.

Also fixes missing locking in tegra_dma_allocate_channel

Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 17:50:41 -08:00
Colin Cross
699fe145d6 ARM: tegra: Allow overriding arch_reset
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 17:50:41 -08:00
Colin Cross
1eb2ecf1d5 ARM: tegra: cpufreq: Disable cpufreq during suspend
On Tegra, calling clk_set_rate on the CPU clock may call into the
regulator API.  If the regulator driver that controls the CPU
voltage rail has been suspended, this can lead to attempted
communication with a hardware block that has already been turned
off.

Adds a SUSPEND_PREPARE notification hook to drop the frequency to
the lowest possible during suspend.

Also adds 216MHz (off of PLLP) as the lowest CPU frequency, which
allows PLLX to be turned off.

Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 17:50:40 -08:00
Gary King
537f5af0f6 ARM: tegra: iomap: Add missing devices
Adds gart, hdmi, avp, host1x, and pwm controllers to mach/iomap.h

Signed-off-by: Gary King <gking@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-10 17:50:23 -08:00
Colin Cross
26d902c0c6 ARM: tegra: irq: Implement retrigger
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 22:18:30 -08:00
Colin Cross
3524b70ef3 ARM: tegra: irq: Add support for suspend wake sources
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 22:18:21 -08:00
Colin Cross
093617851c ARM: tegra: timer: Add idle and suspend support to timers
Implement read_persistent_clock by reading the Tegra RTC
registers that stay running during suspend.

Save and restore the timer configuration register in
suspend.

Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 22:17:38 -08:00
Gary King
3c3895b4bf ARM: tegra: pinmux: Add missing drive pingroups and fix suspend
Adds missing drive pingroups, saves all drive pingroups in
suspend, and restores the pinmux registers in the proper order.

Signed-off-by: Gary King <gking@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 21:57:02 -08:00
Colin Cross
cea62c878d ARM: tegra: clock: Suspend fixes, and add new clocks
Save and restore pll and osc state during suspend
Add digital audio clocks
Update clk dev associations
Correct max clock frequencies
Add pll_p as additional cpu clock state
Add values to plld table
Fix register offset for sdmmc4 clock
Add blink timer to tegra2_clocks

Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 21:57:02 -08:00
Colin Cross
2ea67fd145 ARM: tegra: Add prototypes for subsystem suspend functions
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 21:57:01 -08:00
Colin Cross
538bd3cc19 ARM: tegra: irqs: Update irq list
Fixes typo in INT_CPU1_PMU_INTR (original fix from Will Deacon)
Adds board irqs

Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 21:57:01 -08:00
Colin Cross
ce1e326269 ARM: tegra: Add api to control internal powergating
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 21:57:00 -08:00
Colin Cross
d377eb0d95 ARM: tegra: Centralize macros to define debug uart base
Signed-off-by: Colin Cross <ccross@android.com>
2011-02-09 21:56:59 -08:00
Stephen Warren
47f5ae51f2 ARM: tegra: Add to struct harmony_audio_platform_data
Add fields to describe all the audio-related GPIOs on Harmony, except for
the codec's GPIO IRQ, which will be passed in its i2c_board_info.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-02-01 14:19:23 +00:00
Linus Torvalds
ef9f2fa17f Merge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
  ARM: tegra: clock: Add forward reference to struct clk
  ARM: tegra: irq: Rename gic pointers to avoid conflicts
  arm/tegra: Fix tegra irq_data conversion
2011-01-31 12:49:26 +10:00
Colin Cross
b48b5f5156 ARM: tegra: clock: Add forward reference to struct clk
Signed-off-by: Colin Cross <ccross@android.com>
2011-01-26 21:28:06 -08:00
Colin Cross
cc939754db ARM: tegra: irq: Rename gic pointers to avoid conflicts
A future patch will export gic_mask_irq and gic_unmask_irq.
Rename the pointers in arch/arm/mach-tegra/irq.c to avoid
a compile error.

Signed-off-by: Colin Cross <ccross@android.com>
2011-01-26 21:28:06 -08:00
Grant Likely
867996cb4f arm/tegra: Fix tegra irq_data conversion
Commit 37337a8d5e, "ARM: tegra: irq_data
conversion." missed changing one reference to 'irq' in the function
tegra_gpio_irq_set_type().  This patch fixes the build error.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Lennert Buytenhek <buytenh@secretlab.ca>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
2011-01-26 21:28:06 -08:00
Linus Torvalds
6fb1b30425 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - pass touch resolution to clients through input_absinfo
  Input: wacom - add 2 Bamboo Pen and touch models
  Input: sysrq - ensure sysrq_enabled and __sysrq_enabled are consistent
  Input: sparse-keymap - fix KEY_VSW handling in sparse_keymap_setup
  Input: tegra-kbc - add tegra keyboard driver
  Input: gpio_keys - switch to using request_any_context_irq
  Input: serio - allow registered drivers to get status flag
  Input: ct82710c - return proper error code for ct82c710_open
  Input: bu21013_ts - added regulator support
  Input: bu21013_ts - remove duplicate resolution parameters
  Input: tnetv107x-ts - don't treat NULL clk as an error
  Input: tnetv107x-keypad - don't treat NULL clk as an error

Fix up trivial conflicts in drivers/input/keyboard/Makefile due to
additions of tc3589x/Tegra drivers
2011-01-26 16:31:44 +10:00
Stephen Warren
f221a9be2e ARM: tegra: Add Harmony sound platform data type
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Colin Cross <ccross@google.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-01-25 20:18:10 +00:00
Rakesh Iyer
11f5b30dac Input: tegra-kbc - add tegra keyboard driver
This patch adds support for the internal matrix keyboard controller for
Nvidia Tegra platforms.

Signed-off-by: Rakesh Iyer <riyer@nvidia.com>
Reviewed-by: Trilok Soni <tsoni@codeaurora.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-01-20 23:12:34 -08:00
Linus Torvalds
16c1020362 Merge branch 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm: (161 commits)
  ARM: pxa: fix building issue of missing physmap.h
  ARM: mmp: PXA910 drive strength FAST using wrong value
  ARM: mmp: MMP2 drive strength FAST using wrong value
  ARM: pxa: fix recursive calls in pxa_low_gpio_chip
  AT91: Support for gsia18s board
  AT91: Acme Systems FOX Board G20 board files
  AT91: board-sam9m10g45ek.c: Remove duplicate inclusion of mach/hardware.h
  ARM: pxa: fix suspend/resume array index miscalculation
  ARM: pxa: use cpu_has_ipr() consistently in irq.c
  ARM: pxa: remove unused variable in clock-pxa3xx.c
  ARM: pxa: fix warning in zeus.c
  ARM: sa1111: fix typo in sa1111_retrigger_lowirq()
  ARM mxs: clkdev related compile fixes
  ARM i.MX mx31_3ds: Fix MC13783 regulator names
  ARM: plat-stmp3xxx: irq_data conversion.
  ARM: plat-spear: irq_data conversion.
  ARM: plat-orion: irq_data conversion.
  ARM: plat-omap: irq_data conversion.
  ARM: plat-nomadik: irq_data conversion.
  ARM: plat-mxc: irq_data conversion.
  ...

Fix up trivial conflict in arch/arm/plat-omap/gpio.c (Lennert
Buytenhek's irq_data conversion clashing with some omap irq updates)
2011-01-15 12:33:40 -08:00
Linus Torvalds
65e5d002b5 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: fix missing branch in __error_a
  ARM: fix /proc/$PID/stack on SMP
  ARM: Fix build regression on SA11x0, PXA, and H720x targets
  ARM: 6625/1: use memblock memory regions for "System RAM" I/O resources
  ARM: fix wrongly patched constants
  ARM: 6624/1: fix dependency for CONFIG_SMP_ON_UP
  ARM: 6623/1: Thumb-2: Fix out-of-range offset for Thumb-2 in proc-v7.S
  ARM: 6622/1: fix dma_unmap_sg() documentation
  ARM: 6621/1: bitops: remove condition code clobber for CLZ
  ARM: 6620/1: Change misleading warning when CONFIG_CMDLINE_FORCE is used
  ARM: 6619/1: nommu: avoid mapping vectors page when !CONFIG_MMU
  ARM: sched_clock: make minsec argument to clocks_calc_mult_shift() zero
  ARM: sched_clock: allow init_sched_clock() to be called early
  ARM: integrator: fix compile warning in cpu.c
  ARM: 6616/1: Fix ep93xx-fb init/exit annotations
  ARM: twd: fix display of twd frequency
  ARM: udelay: prevent math rounding resulting in short udelays
2011-01-15 12:29:50 -08:00
Russell King
30b99d07b7 ARM: fix wrongly patched constants
e3d9c625 (ARM: CPU hotplug: fix hard-coded control register constants)
changed the wrong constants in the hotplug assembly code.  Fix this.

Reported-by: viresh kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-01-14 12:06:26 +00:00
Lennert Buytenhek
37337a8d5e ARM: tegra: irq_data conversion.
Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
2011-01-13 17:19:04 +01:00
Olof Johansson
03d2bfc878 mmc: add sdhci-tegra driver for Tegra SoCs
SDHCI driver for Tegra. This driver plugs in as a new variant of
sdhci-pltfm, using the platform data structure passed in to specify the
GPIOs to use for card detect, write protect and card power enablement.

Original driver (of which only the header file is left):
Signed-off-by: Yvonne Yip <y@palm.com>

The rest, which has been rewritten by now:
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-01-08 23:52:23 -05:00
Russell King
4073723acb Merge branch 'misc' into devel
Conflicts:
	arch/arm/Kconfig
	arch/arm/common/Makefile
	arch/arm/kernel/Makefile
	arch/arm/kernel/smp.c
2011-01-06 22:32:52 +00:00
Russell King
4ec3eb1363 Merge branch 'smp' into misc
Conflicts:
	arch/arm/kernel/entry-armv.S
	arch/arm/mm/ioremap.c
2011-01-06 22:32:03 +00:00
Russell King
58daf18cdc Merge branch 'clksrc' into devel
Conflicts:
	arch/arm/mach-vexpress/v2m.c
	arch/arm/plat-omap/counter_32k.c
	arch/arm/plat-versatile/Makefile
2011-01-05 18:09:03 +00:00
Russell King
31edf274f9 Merge branches 'ftrace', 'gic', 'io', 'kexec', 'mod', 'sa11x0', 'sh' and 'versatile' into devel 2011-01-05 18:08:10 +00:00
Russell King
e3f4c0ab91 ARM: tegra: convert sched_clock() to use new infrastructure
Convert tegra to use the new sched_clock() infrastructure for extending
32bit counters to full 64-bit nanoseconds.

Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-22 22:44:47 +00:00
Russell King
5e06b6492e ARM: ensure all sched_clock() implementations are notrace marked
ftrace requires sched_clock() to be notrace.  Ensure that all
implementations are so marked.  Also make sure that they include
linux/sched.h

Also ensure OMAP clocksource read functions are marked notrace as
they're used for sched_clock() too.

Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Eric Miao <eric.y.miao@gmail.com>
Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-22 22:44:42 +00:00
Colin Cross
684e94cbcb ARM: tegra: timer: Separate clocksource and sched_clock
tegra_clocksource_read should not use cnt32_to_63, wrapping is
already handled in the clocksource code.  Move the cnt32_to_63
into the sched_clock function, and replace the use of clocksource
mult and shift with a multiplication by 1000 to convert us to ns.

Acked-by: John Stultz <johnstul@us.ibm.com>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-22 22:44:42 +00:00
Russell King
e3d9c625f5 ARM: CPU hotplug: fix hard-coded control register constants
Use the definition we've provided in asm/system.h rather than
numeric constants.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:16 +00:00
Russell King
d4450261e5 ARM: CPU hotplug: fix reporting of spurious wakeups
The original scheme for reporting spurious wakeups was broken - it
tried to use printk() from a context which wasn't coherent with the
other CPUs, which risks corrupting the printk() data.

Fix this by noting the number spurious wakeups, and only report them
when we are properly woken - when we will be coherent with the rest
of the system.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:14 +00:00
Russell King
86e62b9336 ARM: SMP: remove smp_mpidr.h
With "ARM: CPU hotplug: remove bug checks in platform_cpu_die()", we
now do not use hard_smp_processor_id(), we no longer need to read the
hardware processor ID.  Remove the include providing this function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:11 +00:00
Russell King
bbc81fd432 ARM: CPU hotplug: remove bug checks in platform_cpu_die()
platform_cpu_die() is entered from the CPU's own idle thread, which
can not be migrated to other CPUs.  Moreover, the 'cpu' argument
comes from the thread info, which will always be the 'current'
CPU.  So remove this useless bug check.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:10 +00:00
Russell King
3c030beabf ARM: CPU hotplug: move cpu_killed completion to core code
We always need to wait for the dying CPU to reach a safe state before
taking it down, irrespective of the requirements of the platform.
Move the completion code into the ARM SMP hotplug code rather than
having each platform re-implement this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:10 +00:00
Russell King
2c0136dba4 ARM: SMP: consolidate trace_hardirqs_off() into common SMP code
All platforms call trace_hardirqs_off() in their secondary startup code,
so move this into the core SMP code - it doesn't need to be in the
per-platform code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:09 +00:00
Russell King
05c74a6cbc ARM: SMP: consolidate the common parts of smp_prepare_cpus()
There is a certain amount of smp_prepare_cpus() which doesn't belong
in the platform support code - that is, code which is invariant to the
SMP implementation.  Move this code into arch/arm/kernel/smp.c, and
add a platform_ prefix to the original function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:09:08 +00:00
Russell King
aec66ba1f7 ARM: SMP: get rid of references to poke_milo and Milo
Milo is an old boot loader, which is no longer relevant for these
platforms.  References to it are misleading.  Move the code out
of poke_milo(), and remove references to milo in comments.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:08:28 +00:00
Russell King
8975b6c0fd ARM: SMP: Clean up ncores sanity checks
scu_get_core_count() never returns zero cores, so we don't need to
check and correct if ncores is zero.

Tegra was missing the check against NR_CPUS, leading to a potential
bitfield overflow if this becomes the case.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-20 15:08:27 +00:00
Russell King
7627dc802a ARM: GIC: private a standard get_irqnr_preamble assembler macro
Provide a standard get_irqnr_preamble assembler macro for platforms
to use, which retrieves the base address of the GIC CPU interface
from gic_cpu_base_addr.  Allow platforms to override this by defining
HAVE_GET_IRQNR_PREAMBLE.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:47 +00:00
Russell King
384895330e ARM: GIC: Remove MMIO address from gic_cpu_init, rename to gic_secondary_init
We don't need to re-pass the base address for the CPU interfaces to the
GIC for secondary CPUs, as it will never be different from the boot CPU
- and even if it was, we'd overwrite the boot CPU's base address.

Get rid of this argument, and rename to gic_secondary_init().

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:40 +00:00
Russell King
b580b899dd ARM: GIC: provide a single initialization function for boot CPU
Provide gic_init() which initializes the GIC distributor and current
CPU's GIC interface for the boot (or single) CPU.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-14 19:21:30 +00:00
Russell King
a0b7bd0829 ARM: io: make iounmap() a simple macro
Defining iounmap() with arguments prevents it from being used as a
function pointer, causing platforms to work around this.  Instead,
define it to be a simple macro.

Do the same for __arch_io(re|un)map too.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-08 13:57:04 +00:00
Magnus Damm
0005b349d5 ARM: 6478/1: Use shared GIC entry macros on Tegra
Use the GIC demux code in asm/hardware/entry-macro-gic.S
on the Tegra subarchitecture.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-07 09:20:25 +00:00
Olof Johansson
da8f2e2461 ARM: tegra: fix regression from addruart rewrite
Commit 0ea1293009 ("arm: return both physical and virtual addresses
from addruart") took out the test for MMU on/off but didn't switch the
ldr instructions to no longer be conditionals based on said test.

Fix that.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-12-06 20:07:57 -08:00
Russell King
ad3b6993b9 ARM: SMP: pass an ipi number to smp_cross_call()
This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI.  Recover the SGI number via do_IPI.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-03 08:26:30 +00:00
Russell King
d92e04713c ARM: remove obsolete smp_cross_call_done()
smp_cross_call_done() was removed long ago (see 78d236c - remove useless
smp_cross_call_done()).  Remove those which have been subsequently
merged.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-12-03 08:26:30 +00:00
Jean-Christop PLAGNIOL-VILLARD
6d803ba736 ARM: 6483/1: arm & sh: factorised duplicated clkdev.c
factorise some generic infrastructure to assist looking up struct clks
for the ARM & SH architecture.

as the code is identical at 99%

put the arch specific code for allocation as example in asm/clkdev.h

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-26 10:51:04 +00:00
Zimny Lech
61d8e11e51 Remove duplicate includes from many files
Signed-off-by: Zimny Lech <napohybelskurwysynom2010@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-27 18:03:18 -07:00
Mike Rapoport
f2a443931e tegra: harmony: enable PCI Express
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
CC: Olof Johansson <olof@lixom.net>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:13:10 -07:00
Mike Rapoport
77ffc1465c tegra: add PCI Express support
Change-Id: Ibd0bcd46895eb88952b9db29e1f68572d39aae01
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Arnd Bergmann <arnd@arndb.de>
CC: Russell King <linux@arm.linux.org.uk>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:13:02 -07:00
Mike Rapoport
8d685bc5e5 tegra: add PCI Express clocks
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
CC: Gary King <GKing@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:57 -07:00
Colin Cross
4de3a8fa33 [ARM] tegra: Add APB DMA support
The APB DMA block handles DMA transfers to and from some peripherals
in the Tegra SOC.  It reads from sequential addresses on the memory
bus, and writes repeatedly to the same address on the APB bus.

Two transfer modes are supported, oneshot for transferring a known
size to or from a peripheral, and continuous for streaming data.
In continuous mode, a callback occurs when the buffer is half full
to allow the existing data to be handled and a new request queued.x

v2 changes:
	dma API no longer uses PTR_ERR

Signed-off-by: Erik Gilling <konkers@android.com>
Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:35 -07:00
Colin Cross
7056d423f1 [ARM] tegra: Add cpufreq support
Implement cpufreq support for the Tegra SOC.  DVFS is handled by the
core virtual cpu clock.  The frequencies of the two cores are tied
together, the highest frequency requested by either core determines
the actual frequency.

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:28 -07:00
Colin Cross
8486bddc09 [ARM] tegra: common: Update common clock init table
Renames clocks in the clock init table to match the datasheet names

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:22 -07:00
Colin Cross
71fc84cc35 [ARM] tegra: clock: Add dvfs support, bug fixes, and cleanups
- Add drivers to clock lookup table
- Add new pll_m entries
- Support I2C U16 divider
- Fix rate reporting on 32.768kHz clock
- Call propagate rate only if set_rate succeeds
- Add support for audio_sync clock
- Add 24MHz to PLLA frequency list
- Correct i2s1/2/spdifout mux
- Add suspend support
- Fix enable/disable parent clocks in set_parent
- Add max_rate parameter to all clocks
- DVFS support
- Add virtual cpu clock with dvfs
- Support clk_round_rate
- Fix requesting very high periph frequencies
- Add quirks for PLLU:
   PLLU is slightly different from the rest of the PLLs.  The
   lock enable bit is at bit 22 instead of 18 in the MISC
   register, and the post divider field is a single bit with
   reversed values from other PLLs.
- Simplify recalculating clock rates
- Fix UART divider flags
- Remove unused clock ops

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:19 -07:00
Colin Cross
73625e3e2e [ARM] tegra: Add support for reading fuses
The Tegra SOC contains fuses to identify the CPU type and
bin, and a unique id.  The CPU info is required to determine
the correct voltages for each cpu and core frequency.

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:09 -07:00
Colin Cross
2e47b8b3c2 [ARM] tegra: gpio: Add suspend and wake support
Includes checkpatch fixes and TEGRA_NR_GPIOS changes from
Mike Rapoport <mike@compulab.co.il>

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:12:01 -07:00
Colin Cross
c5f04b8d10 [ARM] tegra: pinmux: add safe values, move tegra2, add suspend
- the reset values for some pin groups in the tegra pin mux can result in
functional errors due to conflicting with actively-configured pin groups
muxing from the same controller. this change adds a known safe, non-
conflicting mux for every pin group, which can be used on platforms
where the pin group is not routed to any peripheral

- also add each pin group's I/O voltage rail, to enable platform code to
map from the pin groups used by each interface to the regulators used
for dynamic voltage control

- add routines to individually configure the tristate, pin mux and pull-
ups for a pingroup_config array, so that it is possible to program
individual values at run-time without modifying other values.
this allows driver power-management code to reprogram individual
interfaces into lower power states during idle / suspend, or to
reprogram the pin mux to support multiple physical busses per
internal controller (e.g., sharing a single I2C or SPI controller
across multiple pin groups)

- move chip-specific data like pingroups and drive-pingroups
out of the common code and into chip-specific code

- fix debug output for group with no pullups

- add a TEGRA_MUX_SAFE function.  Setting a pingroup to TEGRA_MUX_SAFE
will automatically select a mux setting that is guaranteed not to
conflict with any of the hardware blocks.

Signed-off-by: Gary King <gking@nvidia.com>
2010-10-21 18:11:41 -07:00
Gary King
460907bc26 [ARM] tegra: add suspend and mirror irqs to legacy controller
mirror IRQ enable and disable operations on the legacy PPI system
interrupt controller, since the legacy controller is responsible
for responding to wakeup interrupts when the CPU is in LP2 idle mode

save the irq controller state on suspend and restore on resume

Signed-off-by: Gary King <gking@nvidia.com>
2010-10-21 18:11:31 -07:00
Colin Cross
8726e4f50e [ARM] tegra: Add legacy irq support
The "legacy irq controller" duplicates the functionality of the GIC,
but remains powered during the cpu suspend and idle modes that power
down the CPU and the GIC.

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:11:29 -07:00
Colin Cross
c231d6976a [ARM] tegra: update iomap
Add missing io address map entries from datasheet.
Add the IRAM area to the statically mapped io regions.
Correct the onewire, USB, and statmon addresses

Signed-off-by: Colin Cross <ccross@android.com>
2010-10-21 18:11:24 -07:00
Nicolas Pitre
6451d7783b arm: remove machine_desc.io_pg_offst and .phys_io
Since we're now using addruart to establish the debug mapping, we can
remove the io_pg_offst and phys_io members of struct machine_desc.

The various declarations were removed using the following script:

  grep -rl MACHINE_START arch/arm | xargs \
  sed -i '/MACHINE_START/,/MACHINE_END/ { /\.\(phys_io\|io_pg_offst\)/d }'

[ Initial patch was from Jeremy Kerr, example script from Russell King ]

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Eric Miao <eric.miao at canonical.com>
2010-10-20 00:27:46 -04:00
Jeremy Kerr
0ea1293009 arm: return both physical and virtual addresses from addruart
Rather than checking the MMU status in every instance of addruart, do it
once in kernel/debug.S, and change the existing addruart macros to
return both physical and virtual addresses. The main debug code can then
select the appropriate address to use.

This will also allow us to retreive the address of a uart for the MMU
state that we're not current in.

Updated with fixes for OMAP from Jason Wang <jason77.wang@gmail.com>
and Tony Lindgren <tony@atomide.com>, and fix for versatile express from
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-10-20 00:27:33 -04:00
Russell King
067173526c ARM: Provide common header for hard_smp_processor_id()
Provide a common header to read the SMP CPU number from the MPIDR.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-10-04 20:20:45 +01:00
Olof Johansson
42537eff86 arm: tegra: VMALLOC_END should be unsigned long
Silences following build warning:

arch/arm/mm/init.c: In function 'mem_init':
arch/arm/mm/init.c:644: warning: format '%08lx' expects type 'long
unsigned int', but argument 12 has type 'unsigned int'

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@google.com>
2010-08-22 12:54:23 -07:00
Olof Johansson
a68820db79 arm: tegra: fix compilation of board-harmony.c
The patch "ARM: Remove DISCONTIGMEM support" removed the node id from
the meminfo struct and the PHYS_TO_NID macro, causing compilation errors:

arch/arm/mach-tegra/board-harmony.c: In function 'tegra_harmony_fixup':
arch/arm/mach-tegra/board-harmony.c:94: error: 'struct membank' has no member named 'node'
arch/arm/mach-tegra/board-harmony.c:94: error: implicit declaration of function 'PHYS_TO_NID'
arch/arm/mach-tegra/board-harmony.c:97: error: 'struct membank' has no member named 'node'

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Colin Cross <ccross@google.com>
2010-08-22 12:54:14 -07:00
Colin Cross
42a7bf4d26 [ARM] tegra: harmony: Add harmony board file
v2: fixes from Russell King
	- include linux/io.h instead of mach/io.h

v3: fixes from Linus Walleij
	- remove /16 * 16 from UART clock

v3:
	- Fix checkpatch issues
	- make board init calls explicit
	- use clock init table to set clocks
	- remove panel

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05 14:57:02 -07:00
Erik Gilling
a4417c8451 [ARM] tegra: add pinmux support
v2: fixes from Russell King
	- include linux/io.h instead of asm/io.h
v3:
	- Add drive strength controls
	- Replace typedef enums with plain enums

Signed-off-by: Erik Gilling <konkers@android.com>
Signed-off-by: Colin Cross <ccross@android.com>
2010-08-05 14:57:02 -07:00
Erik Gilling
3c92db9ac0 [ARM] tegra: add GPIO support
v2: fixes from Mike Rapoport:
	- move gpio-names.h to arch/arm/mach-tegra
    fixes from Russell King
	- include linux/io.h and linux/gpio.h instead of asm/io.h
	  and asm/gpio.h
    additional changes:
    	- add macros to convert between irq and gpio numbers for platform data
	- change for_each_bit to for_each_set_bit in gpio.c
v3:
	- minor bugfixes

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05 14:57:02 -07:00
Colin Cross
2d5cd9a38b [ARM] tegra: Add timer support
v2: fixes from Russell King:
	- include linux/io.h instead of asm/io.h
    fixes from Gary King:
	- remove extra (and incorrect) irq definitions
	- use timer 3 instead of timer 1 for compatibility with other drivers
	- fix typo that disabled oneshot mode
v3:
	- Implement sched_clock
	- Fix checkpatch issues
    fixes from Gary King:
    	- Fix incorrect cycles calculation
	- Fix min_delta_ns assignment
    fixes from Linus Walleij:
	- use calc_mult_shift() instead of hard coding values

Signed-off-by: Colin Cross <ccross@android.com>
2010-08-05 14:57:02 -07:00
Colin Cross
1cea7326b3 [ARM] tegra: SMP support
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05 14:57:01 -07:00
Colin Cross
d861196163 [ARM] tegra: Add clock support
v2: fixes from Russell King:
	- include linux/io.h instead of asm/io.h
	- fix whitespace in Kconfig
	- Use spin_lock_init to initialize lock
	- Return -ENOSYS instead of BUG for unimplemented clock ops
	- Use proper return values in tegra2 clock ops
    additional changes:
	- Rename some clocks to match dev_ids
	- add rate propagation
	- add debugfs entries
	- add support for clock listed in clk_lookup under multiple dev_ids
v3:
	- Replace per-clock locking with global clock lock
	- Autodetect clock state on init
	- Let clock dividers pick next lower possible frequency
	- Add support for clock init tables
	- Minor bug fixes
	- Fix checkpatch issues

Signed-off-by: Colin Cross <ccross@android.com>
2010-08-05 14:51:42 -07:00
Erik Gilling
5ad36c5f0e [ARM] tegra: Add IRQ support
v2: fixes from Russell King
	- include linux/io.h instead of asm/io.h and mach/io.h

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05 14:51:42 -07:00
Erik Gilling
c5f800656b [ARM] tegra: initial tegra support
v2: Fixes from Mike Rapoport
	- remove unused header files (mach/dma.h and mach/nand.h)
	- remove tegra 1 references from Makefile.boot

v2: fixes from Russell King
	- remove mach/io.h include from mach/iomap.h
	- fix whitespace in Kconfig

v2: from Colin Cross
	- fix invalid immediate in debug-macro.S

v3:
	- allow selection of multiple boards

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
2010-08-05 14:51:42 -07:00