Commit Graph

142 Commits

Author SHA1 Message Date
Tony Lindgren d86ad463d6 ARM: OMAP2+: Fix regression for using local timer on non-SMP SoCs
On am437x we use also an ARM timer in addition to the dmtimer. As am437x
is not an SMP SoC, we need tick_broadcast() implemented. With the recent
dmtimer changes, Arnd started to see link failures for non-SMP am437x
configuration:

kernel/time/tick-broadcast.o: in function `tick_device_uses_broadcast':
tick-broadcast.c:(.text+0x130): undefined reference to `tick_broadcast'

Let's fix the issue by reverting dmtimer related changes that started
building timer.c only for CONFIG_SOC_HAS_REALTIME_COUNTER. We still
always need timer.c built-in for omap5 and dra7 for timer_probe().

And let's also move am437x tick_broadcast() to board-generic.c as
that's where we now call timer_probe() for am437x. This way we avoid
adding back more ifdefs to timer.c.

Fixes: 2ee04b8854 ("ARM: OMAP2+: Drop old timer code for dmtimer and 32k counter")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-05-28 22:50:27 +02:00
Tony Lindgren 64dbc3d55d ARM: dts: Configure system timers for omap2
We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Let's also update the dts file to use #include while at it.

Cc: devicetree@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:04 -07:00
Tony Lindgren 83bd18b466 ARM: dts: Configure system timers for ti81xx
We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Note that for ti81xx, also timer1 is of type 2 unlike on am335x
where timer1 is type1 while the rest of the timers are type 2.

Cc: devicetree@vger.kernel.org
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Cc: Graeme Smecher <gsmecher@threespeedlogic.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:04 -07:00
Tony Lindgren e428e250fd ARM: dts: Configure system timers for omap3
We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Let's also update the dts file to use #include while at it.

Cc: devicetree@vger.kernel.org
Cc: Adam Ford <aford173@gmail.com>
Cc: Andreas Kemnade <andreas@kemnade.info>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:04 -07:00
Tony Lindgren 14b1925a72 ARM: dts: Configure system timers for omap4
We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Cc: devicetree@vger.kernel.org
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:04 -07:00
Tony Lindgren 545a95582e ARM: dts: Configure system timers for am437x
We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Cc: devicetree@vger.kernel.org
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:03 -07:00
Tony Lindgren e20ef23dd6 ARM: dts: Configure system timers for am335x
We can now init system timers using the dmtimer and 32k counter
based on only devicetree data and drivers/clocksource timers.
Let's configure the clocksource and clockevent, and drop the old
unused platform data.

As we're just dropping platform data, and the early platform data
init is based on the custom ti,hwmods property, we want to drop
both the platform data and ti,hwmods property in a single patch.

Since the dmtimer can use both 32k clock and system clock as the
source, let's also configure the SoC specific default values. The
board specific dts files can reconfigure these with assigned-clocks
and assigned-clock-parents as needed.

Cc: devicetree@vger.kernel.org
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:03 -07:00
Tony Lindgren e69b4e1a75 ARM: OMAP2+: Add omap_init_time_of()
This allows us to move the SoCs to probe system timers one SoC
at at time. As arch/arm/mach-omap2/timer.c will be eventually gone,
let's just add omap_init_time_of() to board-generic.c directly.

Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Keerthy <j-keerthy@ti.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 09:38:03 -07:00
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Tony Lindgren 463ab4d58f ARM: OMAP2+: Make display related init into device_initcall
We can initialize almost everything at normal module_init time with
ti-sysc except for clocks and timers. To prepare for that, let's make
display init into device_initcall as otherwise we'll be calling
of_platform_populate() before the parent has probed.

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2018-04-30 12:04:51 -07:00
Linus Torvalds 7f1b9be13a ARM/arm64: SoC platform updates for v4.14
This branch contains platform updates for 32- and 64-bit ARM,
 including defconfig updates to enable new options, drivers and
 platforms. There are also a few fixes and cleanups for some existing vendors.
 
 Some of the things worth highlighting here are:
 
  - Enabling new crypt drivers on arm64 defconfig
  - QCOM IPQ8074 clocks and pinctrl drivers on arm64 defconfig
  - Debug support enabled for Renesas r8a7743
  - Various config updates for Renesas platforms (sound, USB, other drivers)
  - Platform support (including SMP) for TI dra762
  - OMAP cleanups: Move to use generic 8250 debug_ll, removal of stale DMA code
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Merge tag 'armsoc-platforms' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM/arm64 SoC platform updates from Olof Johansson: "This branch
  contains platform updates for 32- and 64-bit ARM, including defconfig
  updates to enable new options, drivers and platforms. There are also a
  few fixes and cleanups for some existing vendors.

  Some of the things worth highlighting here are:

   - Enabling new crypt drivers on arm64 defconfig

   - QCOM IPQ8074 clocks and pinctrl drivers on arm64 defconfig

   - Debug support enabled for Renesas r8a7743

   - Various config updates for Renesas platforms (sound, USB, other
     drivers)

   - Platform support (including SMP) for TI dra762

   - OMAP cleanups: Move to use generic 8250 debug_ll, removal of stale
     DMA code"

* tag 'armsoc-platforms' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits)
  ARM: multi_v7_defconfig: make eSDHC driver built-in
  arm64: defconfig: enable rockchip graphics
  MAINTAINERS: Update Cavium ThunderX2 entry
  ARM: config: aspeed: Add I2C, VUART, LPC Snoop
  ARM: configs: aspeed: Update Aspeed G4 with VMSPLIT_2G
  ARM: s3c24xx: Fix NAND ECC mode for mini2440 board
  ARM: davinci_all_defconfig: enable tinydrm and ST7586
  arm64: defconfig: Enable QCOM IPQ8074 clock and pinctrl
  ARM: defconfig: tegra: Enable ChipIdea UDC driver
  ARM: configs: Add Tegra I2S interfaces to multi_v7_defconfig
  ARM: tegra: Add Tegra I2S interfaces to defconfig
  ARM: tegra: Update default configuration for v4.13-rc1
  MAINTAINERS: update ARM/ZTE entry
  soc: versatile: remove unnecessary static in realview_soc_probe()
  ARM: Convert to using %pOF instead of full_name
  ARM: hisi: Fix typo in comment
  ARM: multi_v7_defconfig: add CONFIG_BRCMSTB_THERMAL
  arm64: defconfig: add CONFIG_BRCMSTB_THERMAL
  arm64: defconfig: add recently added crypto drivers as modules
  arm64: defconfig: enable CONFIG_UNIPHIER_WATCHDOG
  ...
2017-09-10 20:35:46 -07:00
Arnd Bergmann a968bc52fe SoC updates for omaps for v4.14. Most of the chages are to add
support for new dra762 SoC. The other changes are are for legacy
 DMA code removal, and MMC quirk and iodelay config for dra7.
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Merge tag 'omap-for-v4.14/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Pull "soc changes for omaps for v4.14" from Tony Lindgren:

SoC updates for omaps for v4.14. Most of the chages are to add
support for new dra762 SoC. The other changes are are for legacy
DMA code removal, and MMC quirk and iodelay config for dra7.

* tag 'omap-for-v4.14/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP: dra7: powerdomain data: Register SoC specific powerdomains
  ARM: dra762: Enable SMP for dra762
  ARM: dra7: hwmod: Register dra76x specific hwmod
  ARM: dra762: Add support for device identification
  ARM: OMAP2+: board-generic: add support for dra762 family
  ARM: OMAP2+: Select PINCTRL_TI_IODELAY for SOC_DRA7XX
  ARM: OMAP2+: Add pdata-quirks for MMC/SD on DRA74x EVM
  ARM: OMAP2+: Remove unused legacy code for DMA
2017-08-16 22:34:15 +02:00
Laurent Pinchart 07e72f9a3f ARM: OMAP2+: Register SoC device attributes from machine .init()
SoC device attributes are registered with a call to
soc_device_register() from the machine .init_late() operation, which is
called from the late initcall, after all drivers built-in drivers have
been probed. This results in the impossibility for drivers to use SoC
device matching in their probe function.

The omap_soc_device_init() function is safe to call from the machine
.init() operation, as all data it depends on is initialized from the
.init_early() operation. Move SoC device attribute registration to
machine .init() like on all other ARM platforms.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2017-08-15 15:18:25 +03:00
Lokesh Vutla 4dc6760d3d ARM: OMAP2+: board-generic: add support for dra762 family
Adding board generic support for dra762 family.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2017-08-14 10:31:26 -07:00
Arnd Bergmann 293ea3d0ab ARM: omap2: mark unused functions as __maybe_unused
The omap_generic_init() and omap_hwmod_init_postsetup() functions are
used in the initialization for all OMAP2+ SoC types, but in the
extreme case that those are all disabled, we get a warning about
unused code:

arch/arm/mach-omap2/io.c:412:123: error: 'omap_hwmod_init_postsetup' defined but not used [-Werror=unused-function]
arch/arm/mach-omap2/board-generic.c:30:123: error: 'omap_generic_init' defined but not used [-Werror=unused-function]

This annotates both as __maybe_unused to shut up that warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
2017-07-27 22:57:48 +02:00
Grygorii Strashko f86a2c875f ARM: omap2+: am437x: rollback to use omap3_gptimer_timer_init()
The commit 55ee7017ee ("arm: omap2: board-generic: use
omap4_local_timer_init for AM437x") unintentionally changes the
clocksource devices for AM437x from OMAP GP Timer to SyncTimer32K.

Unfortunately, the SyncTimer32K is starving from frequency deviation
as mentioned in commit 5b5c013591 ("ARM: OMAP2+: AM43x: Use gptimer
as clocksource") and, as reported by Franklin [1], even its monotonic
nature is under question (most probably there is a HW issue, but it's
still under investigation).

Taking into account above facts It's reasonable to rollback to the use
of omap3_gptimer_timer_init().

[1] http://www.spinics.net/lists/linux-omap/msg127425.html

Fixes: 55ee7017ee ("arm: omap2: board-generic: use
omap4_local_timer_init for AM437x")
Reported-by: Cooper Jr., Franklin <fcooper@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-12-27 09:38:04 -08:00
Linus Torvalds e79ab194d1 ARM: SoC platform updates for v4.10
These are updates for platform specific code on 32-bit ARM machines,
 essentially anything that can not (yet) be expressed using DT files.
 
 Noteworthy changes include:
 
 - Added support for the TI DRA71x family of SoCs in mach-omap2,
   this is an new variant of the the DRA72x/DRA74x automotive
   infotainment chips we already supported for a while.
 
 - Added support for the ST STM32F746 SoC, the first Cortex-M7
   based microcontroller we support, related to the smaller
   STM32F4 family.
 
 - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile,
   see http://elinux.org/RZ-G
 
 - SMP is now supported on the OX820 platform
 
 - A lot of code in mach-omap2 gets removed as a follow-up to
   removing support for board files in the previous release
 
 - Davinci has some new work to improve USB support
 
 - For i.MX, the performance monitor now supports profiling the
   memory controller using 'perf'
 
 Conflicts:
 arch/arm/mach-shmobile/setup-rcar-gen2.c: rcar_gen2_clocks_init()
 is gone, calling of_clk_init(NULL) is sufficient now.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "These are updates for platform specific code on 32-bit ARM machines,
  essentially anything that can not (yet) be expressed using DT files.

  Noteworthy changes include:

   - Added support for the TI DRA71x family of SoCs in mach-omap2, this
     is an new variant of the the DRA72x/DRA74x automotive infotainment
     chips we already supported for a while.

   - Added support for the ST STM32F746 SoC, the first Cortex-M7 based
     microcontroller we support, related to the smaller STM32F4 family.

   - Renesas adds support for r8a7743 and r8a7745 in mach-shmobile, see
     http://elinux.org/RZ-G

   - SMP is now supported on the OX820 platform

   - A lot of code in mach-omap2 gets removed as a follow-up to removing
     support for board files in the previous release

   - Davinci has some new work to improve USB support

   - For i.MX, the performance monitor now supports profiling the memory
     controller using 'perf'"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (95 commits)
  ARM: davinci: da830-evm: use gpio descriptor for mmc pins
  ARM: davinci: da850-evm: use gpio descriptor for mmc pins
  ARM: davinci: hawk: use gpio descriptor for mmc pins
  ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6
  ARM: davinci: da8xx: Fix ohci device name
  ARM: oxnas: Add OX820 config and makefile entry
  ARM: oxnas: Add OX820 SMP support
  ARM: davinci: PM: fix build when da850 not compiled in
  ARM: orion5x: remove legacy support of ls-chl
  ARM: integrator: drop EBI access use syscon
  ARM: BCM5301X: Add back handler ignoring external imprecise aborts
  ARM: davinci: PM: support da8xx DT platforms
  ARM: davinci: PM: cleanup: remove references to pdata
  ARM: davinci: PM: rework init, remove platform device
  ARM: Kconfig: Introduce MACH_STM32F746 flag
  ARM: mach-stm32: Add a new SOC - STM32F746
  ARM: shmobile: document SK-RZG1E board
  ARM: shmobile: r8a7745: basic SoC support
  ARM: imx: mach-imx6ul: add imx6ull support
  ARM: zynq: Reserve correct amount of non-DMA RAM
  ...
2016-12-15 15:39:02 -08:00
Lokesh Vutla a2af765adb ARM: OMAP2+: board-generic: add support for DRA71x family
DRA71x processor family is a derivative of DRA722 ES2.0 targetted for
infotainment systems.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 15:59:02 -07:00
Laurent Pinchart 71b2e2e3b3 ARM: OMAP2+: Remove the omapdss_early_init_of() function
The function is empty, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-11-09 14:38:47 -07:00
Ivaylo Dimitrov 5f35dc47c1 ARM: OMAP2+: Set system_rev from ATAGS for n900
This fixed a regression with DT boot compared to legacy boot.

Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
[tony@atomide.com: edited patch subject to follow standard]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-02-10 16:17:15 -08:00
Ivaylo Dimitrov 8c51b03493 ARM: 8496/1: OMAP: RX51: save ATAGS data in the early boot stage
This fixes a regression with device tree based booting compared to legacy booting for n900 to make the n900 legacy user space to also work with device tree based booting

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-01-04 11:26:00 +00:00
Linus Torvalds a5e1d715a8 ARM: SoC cleanups for v4.4
Again we have a sizable (but not huge) cleanup branch with a net delta of about
 -3k lines.
 
 Main contents here is:
 
  - A bunch of development/cleanup of a few PXA boards
  - Removal of bockw platforms on shmobile, since the platform has now gone
    completely multiplatform. Whee!
  - move of the 32kHz timer on OMAP to a proper timesource
  - Misc cleanup of older OMAP material (incl removal of one board file)
  - Switch over to new common PWM lookup support for several platforms
 
 There's also a handful of other cleanups across the tree, but the above are
 the major pieces.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "Again we have a sizable (but not huge) cleanup branch with a net delta
  of about -3k lines.

  Main contents here is:

   - A bunch of development/cleanup of a few PXA boards
   - Removal of bockw platforms on shmobile, since the platform has now
     gone completely multiplatform.  Whee!
   - move of the 32kHz timer on OMAP to a proper timesource
   - Misc cleanup of older OMAP material (incl removal of one board
     file)
   - Switch over to new common PWM lookup support for several platforms

  There's also a handful of other cleanups across the tree, but the
  above are the major pieces"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (103 commits)
  ARM: OMAP3: hwmod data: Remove legacy mailbox data and addrs
  ARM: DRA7: hwmod data: Remove spinlock hwmod addrs
  ARM: OMAP4: hwmod data: Remove spinlock hwmod addrs
  ARM: DRA7/AM335x/AM437x: hwmod: Remove gpmc address space from hwmod data
  ARM: Remove __ref on hotplug cpu die path
  ARM: Remove open-coded version of IRQCHIP_DECLARE
  arm: omap2: board-generic: use omap4_local_timer_init for AM437x
  ARM: DRA7/AM335x/AM437x: hwmod: Remove elm address space from hwmod data
  ARM: OMAP: Remove duplicated operand in OR operation
  clocksource: ti-32k: make it depend on GENERIC_CLOCKSOURCE
  ARM: pxa: remove incorrect __init annotation on pxa27x_set_pwrmode
  ARM: pxa: raumfeld: make some variables static
  ARM: OMAP: Change all cpu_is_* occurences to soc_is_* for id.c
  ARM: OMAP2+: Rename cpu_is macros to soc_is
  arm: omap2: timer: limit hwmod usage to non-DT boots
  arm: omap2+: select 32k clocksource driver
  clocksource: add TI 32.768 Hz counter driver
  arm: omap2: timer: rename omap_sync32k_timer_init()
  arm: omap2: timer: always call clocksource_of_init() when DT
  arm: omap2: timer: move realtime_counter_init() around
  ...
2015-11-10 14:48:36 -08:00
Felipe Balbi 55ee7017ee arm: omap2: board-generic: use omap4_local_timer_init for AM437x
AM437x-based boards, can use omap4_local_timer_init()
just fine. Let's use that instead.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-21 16:30:19 -07:00
Tony Lindgren 57df538085 ARM: OMAP2+: Fix imprecise external abort caused by bogus SRAM init
Some omaps are producing imprecise external aborts because we are
wrongly trying to init SRAM for device tree based booting. Only
omap3 is still using the legacy SRAM code, so we need to make it
omap3 specific. Otherwise we can get errors like this on at least
dm814x:

Unhandled fault: imprecise external abort (0xc06) at 0xc08b156c
...
(omap_rev) from [<c08b12e0>] (omap_sram_init+0xf8/0x3e0)
(omap_sram_init) from [<c08aca0c>] (omap_sdrc_init+0x10/0xb0)
(omap_sdrc_init) from [<c08b581c>] (pdata_quirks_init+0x18/0x44)
(pdata_quirks_init) from [<c08b5478>] (omap_generic_init+0x10/0x1c)
(omap_generic_init) from [<c08a57e0>] (customize_machine+0x1c/0x40)
(customize_machine) from [<c00098a4>] (do_one_initcall+0x80/0x1dc)
(do_one_initcall) from [<c08a2ec4>] (kernel_init_freeable+0x218/0x2e8)
(kernel_init_freeable) from [<c063a554>] (kernel_init+0x8/0xec)
(kernel_init) from [<c000f890>] (ret_from_fork+0x14/0x24)

Let's fix the issue by making sure omap_sdrc_init only gets called for
omap3. To do that, we need to have compatible "ti,omap3" in the dts
files. And let's also use "ti,omap3630" instead of "ti,omap36xx" like
we're supposed to.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-19 08:55:46 -07:00
Tony Lindgren 6a3b764b8d ARM: OMAP2+: Fix oops with LPAE and more than 2GB of memory
On boards with more than 2GB of RAM booting goes wrong with things not
working and we're getting lots of l3 warnings:

WARNING: CPU: 0 PID: 1 at drivers/bus/omap_l3_noc.c:147
l3_interrupt_handler+0x260/0x384()
44000000.ocp:L3 Custom Error: MASTER MMC6 TARGET DMM1 (Idle):
Data Access in User mode during Functional access
...
[<c044e158>] (scsi_add_host_with_dma) from [<c04705c8>]
(ata_scsi_add_hosts+0x5c/0x18c)
[<c04705c8>] (ata_scsi_add_hosts) from [<c046b13c>]
(ata_host_register+0x150/0x2cc)
[<c046b13c>] (ata_host_register) from [<c046b38c>]
(ata_host_activate+0xd4/0x124)
[<c046b38c>] (ata_host_activate) from [<c047f42c>]
(ahci_host_activate+0x5c/0x194)
[<c047f42c>] (ahci_host_activate) from [<c0480854>]
(ahci_platform_init_host+0x1f0/0x3f0)
[<c0480854>] (ahci_platform_init_host) from [<c047c9dc>]
(ahci_probe+0x70/0x98)
[<c047c9dc>] (ahci_probe) from [<c04220cc>]
(platform_drv_probe+0x54/0xb4)

Let's fix the issue by enabling ZONE_DMA for LPAE. Note that we need to
limit dma_zone_size to 2GB as the rest of the RAM is beyond the 4GB limit.

Let's also fix things for dra7 as done in similar patches in the TI tree
by Lokesh Vutla <lokeshvutla@ti.com>.

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-10-16 12:16:21 -07:00
Felipe Balbi 6f82e25d2e arm: omap2: timer: rename omap_sync32k_timer_init()
this function is not only about the 32k sync
timer, it's OMAP's generic init_time implementation.

Let's rename it to make that detail easier to
notice.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-10-16 11:06:23 -05:00
Felipe Balbi c7cb14a58e arm: omap2: timer: provide generic sync32k_timer_init function
instead of constantly defining a small wrapper
around __omap_sync32k_timer_init(), let's define
a generic one which can be used by all OMAPs.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-10-15 16:11:40 -05:00
Nishanth Menon a3b7470951 ARM: OMAP2+: board-generic: Remove stale of_irq macros
When commit c4082d499f ("ARM: omap2+: board-generic: clean up the
irq data from board file") cleaned up the direct usage of gic_of_init
and omap_intc_of_init, it failed to clean up the macros properly.

Since these macros are no longer used, lets just remove them.

Fixes: c4082d499f ("ARM: omap2+: board-generic: clean up the irq data from board file")
Reported-by: Carlos Hernandez <ceh@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-09-14 12:14:47 -07:00
Tony Lindgren 24da741c67 Merge branch 'dm814x-soc' into omap-for-v4.3/soc
Update dm814x changes for sparse fixes to make data structures
static.

Conflicts:
	arch/arm/mach-omap2/omap_hwmod_81xx_data.c
2015-07-23 21:59:18 -07:00
Tony Lindgren 9fd274c069 ARM: OMAP2+: Fix dm814x DT_MACHINE_START
Fix dm814x DT_MACHINE_START.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 02:09:10 -07:00
Nishanth Menon ea827ad5ff ARM: DRA7: Provide proper IO map table
DRA7 uses OMAP5 IO table at the moment. This is purely spurious since
the OMAP5 and DRA7 register maps are different in many aspects.

AM57xx/DRA7 TRM Reference: http://www.ti.com/lit/ug/spruhz6/spruhz6.pdf

NOTE: Most of the drivers are already doing ioremap, so, there should'nt
be any functional improvement involved here, other than making the
initial iotable more accurate.

Fixes: a3a9384a11 ("ARM: DRA7: Reuse io tables and add a new .init_early")
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 00:06:05 -07:00
Linus Torvalds 878ba61aa9 ARM: SoC platform changes
New and updated SoC support. Also included are some cleanups where the
 platform maintainers hadn't separated cleanups from new developent in
 separate branches.
 
 Some of the larger things worth pointing out:
 
 - A large set of changes from Alexandre Belloni and Nicolas Ferre
   preparing at91 platforms for multiplatform and cleaning up quite a
   bit in the process.
 - Removal of CSR's "Marco" SoC platform that never made it out to the
   market. We love seeing these since it means the vendor published
   support before product was out, which is exactly what we want!
 
 New platforms this release are:
 
 - Conexant Digicolor (CX92755 SoC)
 - Hisilicon HiP01 SoC
 - CSR/sirf Atlas7 SoC
 - ST STiH418 SoC
 - Common code changes for Nvidia Tegra132 (64-bit SoC)
 
 We're seeing more and more platforms having a harder time labelling
 changes as cleanups vs new development -- which is a good sign that
 we've come quite far on the cleanup effort. So over time we might start
 combining the cleanup and new-development branches more.
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform changes from Olof Johansson:
 "New and updated SoC support.  Also included are some cleanups where
  the platform maintainers hadn't separated cleanups from new developent
  in separate branches.

  Some of the larger things worth pointing out:

   - A large set of changes from Alexandre Belloni and Nicolas Ferre
     preparing at91 platforms for multiplatform and cleaning up quite a
     bit in the process.

   - Removal of CSR's "Marco" SoC platform that never made it out to the
     market.  We love seeing these since it means the vendor published
     support before product was out, which is exactly what we want!

  New platforms this release are:

   - Conexant Digicolor (CX92755 SoC)
   - Hisilicon HiP01 SoC
   - CSR/sirf Atlas7 SoC
   - ST STiH418 SoC
   - Common code changes for Nvidia Tegra132 (64-bit SoC)

  We're seeing more and more platforms having a harder time labelling
  changes as cleanups vs new development -- which is a good sign that
  we've come quite far on the cleanup effort.  So over time we might
  start combining the cleanup and new-development branches more"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (124 commits)
  ARM: at91/trivial: unify functions and machine names
  ARM: at91: remove at91_dt_initialize and machine init_early()
  ARM: at91: change board files into SoC files
  ARM: at91: remove at91_boot_soc
  ARM: at91: move alternative initial mapping to board-dt-sama5.c
  ARM: at91: merge all SOC_AT91SAM9xxx
  ARM: at91: at91rm9200: set idle and restart from rm9200_dt_device_init()
  ARM: digicolor: select syscon and timer
  ARM: zynq: Simplify SLCR initialization
  ARM: zynq: PM: Fixed simple typo.
  ARM: zynq: Setup default gpio number for Xilinx Zynq
  ARM: digicolor: add low level debug support
  ARM: initial support for Conexant Digicolor CX92755 SoC
  ARM: OMAP2+: Add dm816x hwmod support
  ARM: OMAP2+: Add clock domain support for dm816x
  ARM: OMAP2+: Add board-generic.c entry for ti81xx
  ARM: at91: pm: remove warning to remove SOC_AT91SAM9263 usage
  ARM: at91: remove unused mach/system_rev.h
  ARM: at91: stop using HAVE_AT91_DBGUx
  ARM: at91: fix ordering of SRAM and PM initialization
  ...
2015-02-17 09:27:54 -08:00
Linus Torvalds 42cf0f203e Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:

 - clang assembly fixes from Ard

 - optimisations and cleanups for Aurora L2 cache support

 - efficient L2 cache support for secure monitor API on Exynos SoCs

 - debug menu cleanup from Daniel Thompson to allow better behaviour for
   multiplatform kernels

 - StrongARM SA11x0 conversion to irq domains, and pxa_timer

 - kprobes updates for older ARM CPUs

 - move probes support out of arch/arm/kernel to arch/arm/probes

 - add inline asm support for the rbit (reverse bits) instruction

 - provide an ARM mode secondary CPU entry point (for Qualcomm CPUs)

 - remove the unused ARMv3 user access code

 - add driver_override support to AMBA Primecell bus

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (55 commits)
  ARM: 8256/1: driver coamba: add device binding path 'driver_override'
  ARM: 8301/1: qcom: Use secondary_startup_arm()
  ARM: 8302/1: Add a secondary_startup that assumes ARM mode
  ARM: 8300/1: teach __asmeq that r11 == fp and r12 == ip
  ARM: kprobes: Fix compilation error caused by superfluous '*'
  ARM: 8297/1: cache-l2x0: optimize aurora range operations
  ARM: 8296/1: cache-l2x0: clean up aurora cache handling
  ARM: 8284/1: sa1100: clear RCSR_SMR on resume
  ARM: 8283/1: sa1100: collie: clear PWER register on machine init
  ARM: 8282/1: sa1100: use handle_domain_irq
  ARM: 8281/1: sa1100: move GPIO-related IRQ code to gpio driver
  ARM: 8280/1: sa1100: switch to irq_domain_add_simple()
  ARM: 8279/1: sa1100: merge both GPIO irqdomains
  ARM: 8278/1: sa1100: split irq handling for low GPIOs
  ARM: 8291/1: replace magic number with PAGE_SHIFT macro in fixup_pv code
  ARM: 8290/1: decompressor: fix a wrong comment
  ARM: 8286/1: mm: Fix dma_contiguous_reserve comment
  ARM: 8248/1: pm: remove outdated comment
  ARM: 8274/1: Fix DEBUG_LL for multi-platform kernels (without PL01X)
  ARM: 8273/1: Seperate DEBUG_UART_PHYS from DEBUG_LL on EP93XX
  ...
2015-02-12 08:51:56 -08:00
Tony Lindgren abf8cc1d5b ARM: OMAP2+: Add board-generic.c entry for ti81xx
This allows booting ti81xx boards when a .dts file
is in place.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-26 09:26:31 -08:00
Marek Szyprowski 944e9df1d4 ARM: 8257/1: OMAP2+: use common l2cache initialization code
This patch implements generic DT L2C initialisation (the one from
init_IRQ in arch/arm/kernel/irq.c) for Omap4 and AM43 platforms and
kills the SoC specific stuff in arch/arm/mach-omap2/omap4-common.c.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-01-16 14:35:24 +00:00
Tony Lindgren 71c4f6027d ARM: OMAP2+: Fix n900 board name for legacy user space
N900 legacy user space apps need the board name in
/proc/cpuinfo to work properly for the Hardware entry.

For other boards this should not be an issues and they
can use the generic Hardware entry.

Let's fix the issue by adding a custom DT_MACHINE_START
for n900.

Tested-by: Pali Rohár <pali.rohar@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-01-05 15:48:21 -08:00
Linus Torvalds 8b45bc892e ARM: SoC driver updates for 3.18
These are changes for drivers that are intimately tied to some SoC
 and for some reason could not get merged through the respective
 subsystem maintainer tree.
 
 Most of the new code is for the Keystone Navigator driver, which is
 new base support that is going to be needed for their hardware
 accelerated network driver and other units.
 
 Most of the commits are for moving old code around from at91 and omap
 for things that are done in device drivers nowadays.
 
 - at91: move reset, poweroff, memory and clocksource code into drivers
   directories
 - socfpga: add edac driver (through arm-soc, as requested by Boris)
 - omap: move omap-intc code to drivers/irqchip
 - sunxi: added an RTC driver for sun6i
 - omap: mailbox driver related changes
 - keystone: support for the "Navigator" component
 - versatile: new reboot, led and soc drivers
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "These are changes for drivers that are intimately tied to some SoC and
  for some reason could not get merged through the respective subsystem
  maintainer tree.

  Most of the new code is for the Keystone Navigator driver, which is
  new base support that is going to be needed for their hardware
  accelerated network driver and other units.

  Most of the commits are for moving old code around from at91 and omap
  for things that are done in device drivers nowadays.

   - at91: move reset, poweroff, memory and clocksource code into
     drivers directories
   - socfpga: add edac driver (through arm-soc, as requested by Boris)
   - omap: move omap-intc code to drivers/irqchip
   - sunxi: added an RTC driver for sun6i
   - omap: mailbox driver related changes
   - keystone: support for the "Navigator" component
   - versatile: new reboot, led and soc drivers"

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (92 commits)
  bus: arm-ccn: Fix spurious warning message
  leds: add device tree bindings for register bit LEDs
  soc: add driver for the ARM RealView
  power: reset: driver for the Versatile syscon reboot
  leds: add a driver for syscon-based LEDs
  drivers/soc: ti: fix build break with modules
  MAINTAINERS: Add Keystone Multicore Navigator drivers entry
  soc: ti: add Keystone Navigator DMA support
  Documentation: dt: soc: add Keystone Navigator DMA bindings
  soc: ti: add Keystone Navigator QMSS driver
  Documentation: dt: soc: add Keystone Navigator QMSS bindings
  rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtc
  rtc: sun6i: Add sun6i RTC driver
  irqchip: omap-intc: remove unnecessary comments
  irqchip: omap-intc: correct maximum number or MIR registers
  irqchip: omap-intc: enable TURBO idle mode
  irqchip: omap-intc: enable IP protection
  irqchip: omap-intc: remove unnecesary of_address_to_resource() call
  irqchip: omap-intc: comment style cleanup
  irqchip: omap-intc: minor improvement to omap_irq_pending()
  ...
2014-10-08 17:37:16 -04:00
Linus Torvalds eb785bef68 ARM: SoC DT updates for 3.18
As usual, this is the largest branch, though this time a little under
 half of the total changes with 307 individual non-merge changesets.
 
 The largest changes are the addition of new machines, in particular
 the Tegra based Chromebook, the Renesas r8a7794 SoC, and DT support
 for the old i.MX1 platform.
 
 Other changes include
 - at91: various sam9 and sama5 updates
 - exynos: much extended Peach Pi/Pit (Chromebook 2) support
 - keystone: new peripherals
 - meson: added DT for meson6 SoC
 - mvebu: new device support for Armada 370/375
 - qcom: improved support for IPQ8064 and MSM8x60
 - rockchip: much improved support for rk3288
 - shmobile: lots of updates all over the place
 - sunxi: dts license change
 - sunxi: more a23 device support
 - vexpress: CLCD DT description
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Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC DT updates from Arnd Bergmann:
 "As usual, this is the largest branch, though this time a little under
  half of the total changes with 307 individual non-merge changesets.

  The largest changes are the addition of new machines, in particular
  the Tegra based Chromebook, the Renesas r8a7794 SoC, and DT support
  for the old i.MX1 platform.

  Other changes include
   - at91: various sam9 and sama5 updates
   - exynos: much extended Peach Pi/Pit (Chromebook 2) support
   - keystone: new peripherals
   - meson: added DT for meson6 SoC
   - mvebu: new device support for Armada 370/375
   - qcom: improved support for IPQ8064 and MSM8x60
   - rockchip: much improved support for rk3288
   - shmobile: lots of updates all over the place
   - sunxi: dts license change
   - sunxi: more a23 device support
   - vexpress: CLCD DT description"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (308 commits)
  ARM: DTS: meson: update DTSI to add watchdog node
  ARM: dts: keystone-k2l: fix mdio io start address
  ARM: dts: keystone-k2e: fix mdio io start address
  ARM: dts: keystone-k2e: update usb1 node for dma properties
  ARM: dts: keystone: fix io range for usb_phy0
  Revert "Merge tag 'hix5hd2-dt-for-3.18' of git://github.com/hisilicon/linux-hisi into next/dt"
  Revert "ARM: dts: hix5hd2: add wdg node"
  ARM: dts: add rk3288 i2s controller
  ARM: vexpress: Add CLCD Device Tree properties
  ARM: bcm2835: add I2S pinctrl to device tree
  ARM: meson: documentation: add bindings documentation
  ARM: meson: dts: add basic Meson/Meson6/Meson6-atv1200 DTSI/DTS
  ARM: dts: mt6589: Change compatible string for GIC
  ARM: dts: mediatek: Add compatible property for aquaris5
  ARM: dts: mt6589-aquaris5: Add boot argument earlyprintk
  ARM: dts: mt6589: Fix typo in GIC unit address
  ARM: dts: Build dtb for Mediatek board
  ARM: dts: keystone: fix bindings for pcie and usb clock nodes
  ARM: dts: keystone: k2l: Fix chip selects for SPI devices
  ARM: dts: keystone: add dsp gpio controllers nodes
  ...
2014-10-08 17:22:23 -04:00
Felipe Balbi e66c49b515 arm: omap: irq: drop .handle_irq and .init_irq fields
now we can safely drop those fields from our machine_desc.

While at that, also drop the now unused omap_intc_of_init()
definition.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-11 13:05:31 -07:00
Uwe Kleine-König 31957609db ARM: OMAP2+: make of_device_ids const
of_device_ids (i.e. compatible strings and the respective data) are not
supposed to change at runtime. All functions working with of_device_ids
provided by <linux/of.h> work with const of_device_ids. So mark the
non-const function parameters and structs for OMAP2+ as const, too.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-11 12:37:23 -07:00
Uwe Kleine-König 58cda01ed1 ARM: omap2: make arrays containing machine compatible strings const
The definition

	static const char *omap3_boards_compat[] __initconst = {

defines a changable array of constant strings. That is you must not do:

	*omap3_boards_compat[0] = 'f';

but

	omap3_boards_compat[0] = "another string";

is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.

As the struct machine_desc member dt_compat is declared as

	const char *const *dt_compat;

making the arrays const is the better alternative over changing all
annotations to __initdata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-11 12:34:36 -07:00
Nishanth Menon 0e0cb99d17 ARM: OMAP2+: board-generic: add support for AM57xx family
AM57xx processor family are variants of DRA7 family of processors and
targetted at industrial and non-automotive applications.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-09-08 17:03:11 -07:00
Rajendra Nayak 44e97ff6dc ARM: OMAP2+: Add machine entry for dra72x devices
The only difference from the dra74x devices is the missing .smp entry.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Rajendra Nayak 1509e24be2 ARM: OMAP2+: Replace all __initdata with __initconst for const init
Use of const init definition must use __initconst so replace
all such instances where __initdata is used.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-05-06 10:20:14 -07:00
Linus Torvalds 0af9fb6391 fbdev changes for 3.15 (OMAP)
This contains OMAP related fbdev changes for 3.15. The bulk of the patches are
 for adding Device Tree support for OMAP Display Subsystem:
 
 * SoCs: OMAP2/3/4
 
 * Boards: OMAP4 Panda, OMAP4 SDP, OMAP3 Beagle, OMAP3 Beagle-xM, OMAP3
   IGEP0020, OMAP3 N900
 
 * Devices: TFP410 Encoder, tpd12s015 HDMI companion chip, Sony acx565akm panel,
   MIPI DSI Command mode panel and HDMI, DVI and Analog TV connectors
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Merge tag 'fbdev-omap-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull OMAP fbdev changes from Tomi Valkeinen:
 "This is based on the already pulled fbdev-main changes, and this also
  merges .dts branch from Tony Lindgren (which has also been pulled), so
  that I was able to add the display related .dts changes.

  This contains OMAP related fbdev changes for 3.15.  The bulk of the
  patches are for adding Device Tree support for OMAP Display Subsystem:

   - SoCs: OMAP2/3/4

   - Boards: OMAP4 Panda, OMAP4 SDP, OMAP3 Beagle, OMAP3 Beagle-xM,
     OMAP3 IGEP0020, OMAP3 N900

   - Devices: TFP410 Encoder, tpd12s015 HDMI companion chip, Sony
     acx565akm panel, MIPI DSI Command mode panel and HDMI, DVI and
     Analog TV connectors"

* tag 'fbdev-omap-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (45 commits)
  OMAPDSS: HDMI: fix interlace output
  OMAPDSS: add missing __init for dss_init_ports
  ARM: OMAP2+: remove pdata quirks for displays
  OMAPDSS: remove DT hacks for regulators
  Doc/DT: Add DT binding documentation for tpd12s015 encoder
  Doc/DT: Add DT binding documentation for TFP410 encoder
  Doc/DT: Add DT binding documentation for Sony acx565akm panel
  Doc/DT: Add DT binding documentation for MIPI DSI CM Panel
  Doc/DT: Add DT binding documentation for HDMI Connector
  Doc/DT: Add DT binding documentation for DVI Connector
  Doc/DT: Add DT binding documentation for Analog TV Connector
  ARM: omap3-n900.dts: add display information
  ARM: omap3-igep0020.dts: add display information
  ARM: omap3-beagle-xm.dts: add display information
  ARM: omap3-beagle.dts: add display information
  ARM: omap4-sdp.dts: add display information
  Doc/DT: Add DT binding documentation for OMAP DSS
  OMAPDSS: acx565akm: Add DT support
  OMAPDSS: connector-analog-tv: Add DT support
  OMAPDSS: hdmi-connector: Add DT support
  ...
2014-04-07 10:47:51 -07:00
Tomi Valkeinen 6a0e6b3872 ARM: OMAP2+: DT 'compatible' tweak for displays
As there is no common panel framework in the kernel, we have OMAP
specific panel drivers. However, the DT data should be generic. This
brings the issue that some other platform could use the same panels, and
would need to create a driver with the same 'compatible' string as the
OMAP driver.

In the long run, we have to get a common panel framework. For the time
being, this patch solves the issue:

At early boot time, we go through the DT nodes looking for the panels
the kernel supports for OMAP. For each found node, the 'compatible'
string is prepended with "omapdss,", i.e. "sony,acx565akm" becomes
"omapdss,sony,acx565akm". The OMAP display drivers all have "omapdss,"
at the beginning of their compatible field.

This allows us to have generic DT data, but OMAP specific display
drivers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2014-03-19 11:02:46 +02:00
Tomi Valkeinen dcdf407b9d ARM: OMAP2+: add omapdss_init_of()
The OMAP display architecture requires a bunch of platform devices which
are not created via .dts (for now). We also need to pass a few function
pointers and the DSS hardware version from the arch code to omapdss
driver.

This patch adds omapdss_init_of() function, called from board-generic at
init time, which handles those tasks.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
2014-03-19 10:52:23 +02:00
Olof Johansson 1e871089f6 Power, reset and clock related changes via Paul Walmsley <paul@pwsan.com>:
Some low-level optimizations and fixes that don't belong in an -rc
 series for various OMAP-family chips, targeted for v3.15.
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/prcm-a-for-v3.15/20140228124518/
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Merge tag 'omap-for-v3.15/prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

Power, reset and clock related changes via Paul Walmsley <paul@pwsan.com>, via
Tony Lindgren:

Some low-level optimizations and fixes that don't belong in an -rc
series for various OMAP-family chips, targeted for v3.15.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/prcm-a-for-v3.15/20140228124518/

* tag 'omap-for-v3.15/prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP3+: DPLL: stop reparenting to same parent if already done
  ARM: OMAP2+: clock: fix rate prints
  ARM: AM43x: hwmod data: register spinlock OCP interface
  ARM: OMAP2+: clockdomain: Reintroduce SW_SLEEP Support
  ARM: OMAP2+: AM43xx: implement support for machine restart

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-08 23:18:04 -08:00
Rajendra Nayak 5b5c013591 ARM: OMAP2+: AM43x: Use gptimer as clocksource
The SyncTimer in AM43x is clocked using the following two sources:
1) An inaccuarte 32k clock (CLK_32KHZ) derived from PER DPLL, causing system
   time to go slowly (~10% deviation).
2) external 32KHz RTC clock, which may not always be available on board like
   in the case of ePOS EVM

Use gptimer as clocksource instead, as is done in the case of AM335x
(which does not have a SyncTimer). With this, system time keeping works
accurately.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2014-02-28 15:33:27 -08:00
Lokesh Vutla a7daf64a34 ARM: OMAP2+: AM43xx: implement support for machine restart
Add restart hook so that AM4372 builds can restart the platform.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-02-28 12:43:45 -07:00