Commit Graph

41092 Commits

Author SHA1 Message Date
Masahiro Yamada
fb3c442676 ARM: uniphier: drop v7_invalidate_l1 call at secondary entry
This is unnecessary since commit 02b4e2756e ("ARM: v7 setup
function should invalidate L1 cache").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-13 12:12:10 +02:00
Gregory Fong
b78bda5fd8 ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE
Broadcom STB (BRCMSTB) has some 64-bit capable DMA and therefore needs
dma_addr_t to be a 64-bit size.  One user is the Broadcom SATA3 AHCI
controller driver.

Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-11 15:18:29 +02:00
Gregory Fong
aeaeba1b6f ARM: BCM: Enable ARM erratum 798181 for BRCMSTB
Commit 04fcab32d3 ("ARM: 8111/1: Enable
erratum 798181 for Broadcom Brahma-B15") enables this erratum for
affected Broadcom Brahma-B15 CPUs when CONFIG_ARM_ERRATA_798181=y.
Let's make sure that config option is actually set.

Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-11 15:18:28 +02:00
Sudeep Holla
3f86e570f2 ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback
Commit 60f96b41f7 ("genirq: Add IRQCHIP_SKIP_SET_WAKE flag")
introduced a new flag to skip the irq_set_wake callback in the irqchip
core to avoid adding dummy irq_set_wake in the irqchip implementations.

This patch removes the dummy callback and sets the IRQCHIP_SKIP_SET_WAKE
flags.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05 11:31:44 +02:00
Olof Johansson
f9fa55b970 mvebu soc changes for v4.3 (part #1)
- Extend suspend to RAM support in order to add new mvebu SoC
 - Add standby support for all Armada 3xx/XP SoCs
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Merge tag 'mvebu-soc-4.3-1' of git://git.infradead.org/linux-mvebu into next/soc

mvebu soc changes for v4.3 (part #1)

- Extend suspend to RAM support in order to add new mvebu SoC
- Add standby support for all Armada 3xx/XP SoCs

* tag 'mvebu-soc-4.3-1' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Warn about the wake-up sources not taken into account in suspend
  ARM: mvebu: Add standby support
  ARM: mvebu: Use __init for the PM initialization functions
  ARM: mvebu: prepare pm-board.c for the introduction of Armada 38x support
  ARM: mvebu: prepare mvebu_pm_store_bootinfo() to support multiple SoCs
  ARM: mvebu: do not check machine in mvebu_pm_init()
  ARM: mvebu: prepare set_cpu_coherent() for future extension

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05 11:09:02 +02:00
Olof Johansson
b69354dfe2 arm: Xilinx Zynq SoC patches for v4.2
- Fix earlyprintk, jump trampoline for SMP
 - Update git tree location
 - Setup PL310 aux (bit 22)
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Merge tag 'zynq-soc-for-4.3' of https://github.com/Xilinx/linux-xlnx into next/soc

arm: Xilinx Zynq SoC patches for v4.2

- Fix earlyprintk, jump trampoline for SMP
- Update git tree location
- Setup PL310 aux (bit 22)

* tag 'zynq-soc-for-4.3' of https://github.com/Xilinx/linux-xlnx:
  ARM: zynq: reserve space for jump target in secondary trampoline
  clk: zynq: remove redundant $(CONFIG_ARCH_ZYNQ) in Makefile
  MAINTAINERS: Update Zynq git tree location
  ARM: zynq: Set bit 22 in PL310 AuxCtrl register (6395/1)
  ARM: zynq: Fix earlyprintk in big endian mode

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05 10:53:52 +02:00
Nicolas Ferre
c268a74310 ARM: at91/soc: add basic support for new sama5d2 SoC
Add Kconfig entries, header file changes and addition to the documentation.
The early debug infrastructure is also added for easy development.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-08-05 10:40:21 +02:00
Nathan Lynch
e4a9288942 ARM: zynq: reserve space for jump target in secondary trampoline
Add a zero argument to the .word directive in
zynq_secondary_trampoline.  Without an expression the assembler emits
nothing for the .word directive.

This makes it so that the intended range is communicated to ioremap
and outer_flush_range in zynq_cpun_start; e.g. for LE
trampoline_code_size evaluates to 12 now instead of 8.

Found by inspection.  I'm not aware of any real problem this fixes.
Tested by doing on online/offline loop on ZC702.

Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-07-31 10:24:41 +02:00
Jun Nie
f15107f412 ARM: zx: Add power domains for ZX296702
Add power domains for ZX296702 to power off
inactive power domains in runtime.

Signed-off-by: Jun Nie <jun.nie@linaro.org>
[olof: Marked zx296702_pd_driver as __initdata to avoid section mismatch]
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-30 14:36:36 +02:00
Olof Johansson
2eb084eb1f SoCFPGA updates for v4.3
- Add smp.ops.cpu_kill() for kexec
 - Add reboot capability for Arria10
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Merge tag 'socfpga_updates_for_v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/soc

SoCFPGA updates for v4.3
- Add smp.ops.cpu_kill() for kexec
- Add reboot capability for Arria10

* tag 'socfpga_updates_for_v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  ARM: socfpga: add reset for the Arria 10 platform
  ARM: socfpga: add smp_ops.cpu_kill to make kexec/kdump available

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 18:26:14 +02:00
Olof Johansson
0c21bcb616 - ARM: mediatek: Add regmap to mediatek Kconfig
- soc: mediatek: Drop owner assignment from platform_driver
 - soc: Mediatek: Add SCPSYS power domain driver
 - dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
 - soc: mediatek: Add infracfg misc driver support
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Merge tag 'v4.2-next-soc' of https://github.com/mbgg/linux-mediatek into next/soc

- ARM: mediatek: Add regmap to mediatek Kconfig
- soc: mediatek: Drop owner assignment from platform_driver
- soc: Mediatek: Add SCPSYS power domain driver
- dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
- soc: mediatek: Add infracfg misc driver support

* tag 'v4.2-next-soc' of https://github.com/mbgg/linux-mediatek:
  ARM: mediatek: Add regmap to mediatek Kconfig
  soc: mediatek: Drop owner assignment from platform_driver
  soc: Mediatek: Add SCPSYS power domain driver
  dt-bindings: soc: Add documentation for the MediaTek SCPSYS unit
  soc: mediatek: Add infracfg misc driver support

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 18:17:31 +02:00
Gregory CLEMENT
482d638f98 ARM: mvebu: Warn about the wake-up sources not taken into account in suspend
On the Armada 370/XP/38x/39x SoCs when the suspend to ram feature is
supported, the SoCs are shutdown and will be woken up by an external
micro-controller, so there is no possibility to setup wake-up sources
from Linux. However, in standby mode, the SoCs stay powered and it is
possible to wake-up from any interrupt sources. Since when the users
configures the enabled wake-up sources there is no way to know if the
user will be doing suspend to RAM or standby, we just allow all
wake-up sources to be enabled, and only warn when entering suspend to
RAM

The purpose of this patch is to inform the user that in suspend to ram
mode, the wake-up sources won't be taken into consideration.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-28 11:40:47 +02:00
Olof Johansson
a9a7f260e0 This is the pxa changes for v4.3 cycle.
There is mostly one evolution on the dma side, to enable cooperation
 of the legacy pxa DMA API, and the new dmaengine API.
 Once all drivers using DMA are converted, the legacy DMA API should
 be removed.
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Merge tag 'pxa-for-4.3-v2' of https://github.com/rjarzmik/linux into next/soc

This is the pxa changes for v4.3 cycle.

There is mostly one evolution on the dma side, to enable cooperation
of the legacy pxa DMA API, and the new dmaengine API.
Once all drivers using DMA are converted, the legacy DMA API should
be removed.

* tag 'pxa-for-4.3-v2' of https://github.com/rjarzmik/linux:
  ARM: pxa: Use setup_timer
  ARM: pxa: Use module_platform_driver
  ARM: pxa: transition to dmaengine phase 1

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-27 14:49:24 +02:00
Olof Johansson
d7018b1558 SoC changes for omaps for v4.3 merge window:
- Clean-up omap4_local_timer_init to drop deal legacy code
 
 - Provide proper IO map table for dra7
 
 - Clean-up IOMMU layer init code as it now uses IOMMU framework
 
 - A series of changes to fix up dm814x support that's been in a broken
   half-merged state for quite some time
 
 - A series of PRCM and hwmod changes via Paul Walmsley <paul@pwsan.com>:
 
   - I/O wakeup support for AM43xx
   - register lock and unlock support to the hwmod code (needed for the RTC
     IP blocks on some chips)
   - several fixes for sparse warnings and an unnecessary null pointer test
   - a DRA7xx clockdomain configuration workaround, to deal with some hardware
     bugs
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Merge tag 'omap-for-v4.3/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/soc

SoC changes for omaps for v4.3 merge window:

- Clean-up omap4_local_timer_init to drop deal legacy code

- Provide proper IO map table for dra7

- Clean-up IOMMU layer init code as it now uses IOMMU framework

- A series of changes to fix up dm814x support that's been in a broken
  half-merged state for quite some time

- A series of PRCM and hwmod changes via Paul Walmsley <paul@pwsan.com>:

  - I/O wakeup support for AM43xx
  - register lock and unlock support to the hwmod code (needed for the RTC
    IP blocks on some chips)
  - several fixes for sparse warnings and an unnecessary null pointer test
  - a DRA7xx clockdomain configuration workaround, to deal with some hardware
    bugs

* tag 'omap-for-v4.3/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (21 commits)
  ARM: OMAP2: Add minimal dm814x hwmod support
  ARM: OMAP2+: Prepare dm81xx hwmod code for adding minimal dm814x support
  ARM: PRM: AM437x: Enable IO wakeup feature
  ARM: OMAP4+: PRM: Add AM437x specific data
  ARM: OMAP: PRM: Remove hardcoding of IRQENABLE_MPU_2 and IRQSTATUS_MPU_2 register offsets
  ARM: dts: AM4372: Add PRCM IRQ entry
  ARM: AM43xx: Add the PRM IRQ register offsets
  ARM: OMAP4: PRM: Remove hardcoding of PRM_IO_PMCTRL_OFFSET register
  ARM: OMAP2+: Add support for initializing dm814x clocks
  ARM: OMAP2+: Add custom prwdm_operations for 81xx to support dm814x
  ARM: OMAP2+: Add minimal clockdomains for dm814x
  ARM: OMAP2+: Fix scm compatible for dm814x
  ARM: OMAP2+: Fix dm814x DT_MACHINE_START
  ARM: OMAP2+: Remove module references from IOMMU machine layer
  ARM: DRA7: Provide proper IO map table
  ARM: OMAP2+: Clean up omap4_local_timer_init
  ARM: OMAP2: Delete an unnecessary check
  ARM: OMAP2+: sparse: add missing function declarations
  ARM: OMAP2+: sparse: add missing static declaration
  ARM: OMAP2+: hwmod: add support for lock and unlock hooks
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-27 14:36:53 +02:00
Olof Johansson
c3d3dbddd3 Renesas ARM Based SoC Updates for v4.3
* Add basic support for gose/r8a7793
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Merge tag 'renesas-soc-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

Renesas ARM Based SoC Updates for v4.3

* Add basic support for gose/r8a7793

* tag 'renesas-soc-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: gose: enable R-Car Gen2 regulator quirk
  ARM: shmobile: Basic r8a7793 SoC support

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-27 14:33:56 +02:00
Olof Johansson
7bd1584bd5 STi SoC updates for v4.3, round 1.
Highlights:
 -----------
  - Add code to release secondary cores from holding pen.
  - Remove useless call to trace_hardirqs_off() in secondary core init function.
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Merge tag 'sti-soc-for-v4.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti into next/soc

STi SoC updates for v4.3, round 1.

Highlights:
-----------
 - Add code to release secondary cores from holding pen.
 - Remove useless call to trace_hardirqs_off() in secondary core init function.

* tag 'sti-soc-for-v4.3-1' of https://git.kernel.org/pub/scm/linux/kernel/git/mcoquelin/sti:
  ARM: STi: Remove platform call to trace_hardirqs_off()
  ARM: STi: Add code to release secondary cores from holding pen.

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-27 14:25:23 +02:00
Gregory CLEMENT
3cbd6a6ca8 ARM: mvebu: Add standby support
Until now only one Armada XP and one Armada 388 based board supported
suspend to ram. However, most of the recent mvebu SoCs can support the
standby mode. Unlike for the suspend to ram, nothing special has to be
done for these SoCs. This patch allows the system to use the standby
mode on Armada 370, 38x, 39x and XP SoCs. There are issues with the
Armada 375, and the support might be added (if possible) in a future
patch.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-25 17:17:05 +02:00
Gregory CLEMENT
bb253e743a ARM: mvebu: Use __init for the PM initialization functions
mvebu_pm_init and mvebu_armada_pm_init are only called during boot, so
flag them with __init and save some memory.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
2015-07-25 17:16:57 +02:00
Thomas Petazzoni
32f9494c9d ARM: mvebu: prepare pm-board.c for the introduction of Armada 38x support
The pm-board.c code contains the board-specific logic to enter suspend
to RAM. Until now, the code supported only the Armada XP GP board, so
all functions and symbols were named with armada_xp_gp. However, it
turns out that the Armada 388 GP also uses the same 3 GPIOs protocol
to talk to the PIC microcontroller that controls the power supply.

Since we are going to re-use the same code with no change for Armada
38x, this commit renames the functions and symbols to use just
"armada" instead of "armada_xp_gp". Better names can be found if one
day other boards having a different protocol/mechanism are supported
in the kernel.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-25 17:16:54 +02:00
Thomas Petazzoni
88ed69f2a1 ARM: mvebu: prepare mvebu_pm_store_bootinfo() to support multiple SoCs
As we are going to introduce support for Armada 38x in pm.c, split out
the Armada XP part of mvebu_pm_store_bootinfo() into
mvebu_pm_store_armadaxp_bootinfo(), and make the former retunr an
error when an unsupported SoC is used.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-25 17:16:51 +02:00
Thomas Petazzoni
a101b53d3a ARM: mvebu: do not check machine in mvebu_pm_init()
The mvebu_pm_init() initializes the support for suspend/resume, and
before doing that, it checks if we are on a board on which
suspend/resume is actually supported. However, this check is already
done by mvebu_armada_xp_gp_pm_init(), and there is no need to
duplicate the check: callers of mvebu_pm_init() should now what they
are doing.

This commit is done in preparation to the addition of suspend/resume
support on Armada 38x.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-25 17:16:47 +02:00
Nadav Haklai
01049a5deb ARM: mvebu: prepare set_cpu_coherent() for future extension
This patch prepares the set_cpu_coherent() function in coherency.c to
be extended to support other SoCs than Armada XP. It will be needed on
Armada 38x to re-enable the coherency after exiting from suspend to
RAM.

This preparation simply moves the function further down in coherency.c
so that it can use coherency_type(), and uses that function to only do
the Armada XP specific work if we are on Armada XP.

Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2015-07-25 17:16:41 +02:00
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
0f3ccb24c0 ARM: OMAP2: Add minimal dm814x hwmod support
Let's add minimal set of dm814x hwmods to have a bootable system.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-23 21:39:00 -07:00
Tony Lindgren
7e1b11d145 ARM: OMAP2+: Prepare dm81xx hwmod code for adding minimal dm814x support
Let's change the defines so we can share the hwmod code better between
dm816x and dm814x, and let's add the dm814x specific defines. And let's
rename the shared ones to start with dm81xx. No functional changes.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-23 21:39:00 -07:00
Tony Lindgren
97d9a3d096 ARM: OMAP2+: PRCM and hwmod changes for v4.3
This series adds:
 
 - I/O wakeup support for AM43xx
 - register lock and unlock support to the hwmod code (needed for the RTC
   IP blocks on some chips)
 - several fixes for sparse warnings and an unnecessary null pointer test
 - a DRA7xx clockdomain configuration workaround, to deal with some hardware
   bugs
 
 Basic build, boot, and PM tests are here:
 
 http://www.pwsan.com/omap/testlogs/hwmod-prcm-for-v4.3/20150723080012/
 
 Since I do not have an AM43xx or DRA7xx device, I can't test on those
 platforms.
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Merge tag 'for-v4.3/omap-hwmod-prcm-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v4.3/soc

ARM: OMAP2+: PRCM and hwmod changes for v4.3

This series adds:

- I/O wakeup support for AM43xx
- register lock and unlock support to the hwmod code (needed for the RTC
  IP blocks on some chips)
- several fixes for sparse warnings and an unnecessary null pointer test
- a DRA7xx clockdomain configuration workaround, to deal with some hardware
  bugs

Basic build, boot, and PM tests are here:

http://www.pwsan.com/omap/testlogs/hwmod-prcm-for-v4.3/20150723080012/

Since I do not have an AM43xx or DRA7xx device, I can't test on those
platforms.
2015-07-23 21:14:02 -07:00
Matthias Brugger
3e0452d27a ARM: mediatek: Add regmap to mediatek Kconfig
Mediatek SoC needs the regmap/syscon infrastructure.
The infrastructure is used by the clock and pinctrl driver.
This patch adds MD_SYSCON to Kconfig for all Mediatek devices.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2015-07-23 20:01:42 +02:00
Paul Walmsley
3b86616e30 Merge branch 'prcm-a-for-v4.3' into hwmod-prcm-for-v4.3 2015-07-23 08:49:57 -06:00
Keerthy
8740a1444e ARM: PRM: AM437x: Enable IO wakeup feature
Enable IO wakeup feature. This enables am437x pads to generate daisy
chained wake ups(eventually generates aprcm Interrupt) especially
when in low power modes.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-07-23 06:13:52 -06:00
Keerthy
cc843711fd ARM: OMAP4+: PRM: Add AM437x specific data
The register offsets for some of the PRM Registers are different
hence populating the differing fields. This is needed to support
IO wake up feature for am437x family.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-07-23 06:08:24 -06:00
Keerthy
8d4be7d8bf ARM: OMAP: PRM: Remove hardcoding of IRQENABLE_MPU_2 and IRQSTATUS_MPU_2 register offsets
The register offsets of IRQENABLE_MPU_2 and IRQSTATUS_MPU_2 are hardcoded.
This makes it difficult to reuse the code for SoCs like AM437x that have
a single instance of IRQENABLE_MPU and IRQSTATUS_MPU registers.
Hence handling the case using offset of 4 to accommodate single set of IRQ*
registers generically.

Signed-off-by: Keerthy <j-keerthy@ti.com>
[paul@pwsan.com: fixed whitespace alignment problems reported by checkpatch.pl]
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-07-23 06:08:19 -06:00
Keerthy
6e487001c5 ARM: dts: AM4372: Add PRCM IRQ entry
Add PRCM IRQ entry.  This is needed for I/O wakeup support.

Signed-off-by: Keerthy <j-keerthy@ti.com>
[paul@pwsan.com: added I/O wakeup note in commit description]
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-07-23 05:54:38 -06:00
Keerthy
39db67a5ff ARM: AM43xx: Add the PRM IRQ register offsets
Add the PRM IRQ register offsets.  This is needed to support PRM I/O
wakeup on AM43xx.

Signed-off-by: Keerthy <j-keerthy@ti.com>
[paul@pwsan.com: improved patch description, moved the PRM_IO_PMCTRL macro
 out of the CM section]
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-07-23 05:54:38 -06:00
Keerthy
fac03f12f8 ARM: OMAP4: PRM: Remove hardcoding of PRM_IO_PMCTRL_OFFSET register
PRM_IO_PMCTRL_OFFSET need not be same for all SOCs hence
remove hardcoding and use the value provided by the omap_prcm_irq_setup
structure. This is done to support IO wakeup on am437x series.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2015-07-23 05:27:00 -06:00
Peter Griffin
50de4dd4bc ARM: STi: Remove platform call to trace_hardirqs_off()
Calling trace_hardirqs_off() from the platform specific
secondary startup code as not been necessary since Dec 2010
when Russell King consolidated the call into the common SMP
code.

2c0136d ARM: SMP: consolidate trace_hardirqs_off() into common SMP code

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
2015-07-22 11:15:30 +02:00
Peter Griffin
94a8cfceaa ARM: STi: Add code to release secondary cores from holding pen.
Most upstream devs boot STi platform via JTAG which abuses the
boot process by setting the PC of secondary cores directly. As
a consquence, booting STi platforms via u-boot results in only
the primary core being brought up as the code to manage the
holding pen is not upstream.

This patch adds the necessary code to bring the secondary cores
out of the holding pen. It uses the cpu-release-addr DT property
to get the address of the holding pen from the bootloader.

With this patch booting upstream kernels via u-boot works
correctly:

[    0.045456] CPU: Testing write buffer coherency: ok
[    0.045597] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.045734] Setting up static identity map for 0x40209000 - 0x40209098
[    0.065047] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.065081] Brought up 2 CPUs
[    0.065089] SMP: Total of 2 processors activated (5983.43 BogoMIPS).
[    0.065092] CPU: All CPU(s) started in SVC mode.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
2015-07-22 11:14:18 +02:00
Thomas Betker
6632d4fdd7 ARM: zynq: Set bit 22 in PL310 AuxCtrl register (6395/1)
This patch is based on the
commit 1a8e41cd67 ("ARM: 6395/1: VExpress: Set bit 22 in the PL310
(cache controller) AuxCtlr register")

Clearing bit 22 in the PL310 Auxiliary Control register (shared
attribute override enable) has the side effect of transforming Normal
Shared Non-cacheable reads into Cacheable no-allocate reads.

Coherent DMA buffers in Linux always have a cacheable alias via the
kernel linear mapping and the processor can speculatively load cache
lines into the PL310 controller. With bit 22 cleared, Non-cacheable
reads would unexpectedly hit such cache lines leading to buffer
corruption.

For Zynq, this fix avoids memory inconsistencies between Gigabit
Ethernet controller (GEM) and CPU when DMA_CMA is disabled.

Suggested-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: Thomas Betker <thomas.betker@rohde-schwarz.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-07-22 09:37:58 +02:00
Arun Chandran
974a2aba99 ARM: zynq: Fix earlyprintk in big endian mode
earlyprintk messages are not appearing on the terminal
emulator during a big endian kernel boot. In BE mode
sending full words to UART will result in unprintable
characters as they are byte swapped versions of printable
ones. So send only bytes.

Signed-off-by: Arun Chandran <achandran@mvista.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-07-22 09:37:58 +02:00
Dinh Nguyen
cd871d517d ARM: socfpga: add reset for the Arria 10 platform
Since the Arria10's reset register offset is different from the Cyclone/Arria 5,
it's best to add a new DT_MACHINE_START() for the Arria10.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
---
v2: use altera_a10_dt_match for the A10 machine desc
2015-07-20 15:44:43 -05:00
Vaishali Thakkar
6d6db340a7 ARM: pxa: Use setup_timer
Use the timer API function setup_timer instead of structure field
assignments to initialize a timer.

A simplified version of the Coccinelle semantic patch that performs
this transformation is as follows:

@change@
expression e1, e2, a;
@@

-init_timer(&e1);
+setup_timer(&e1, a, 0UL);
... when != a = e2
-e1.function = a;

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-07-18 12:16:43 +02:00
Vaishali Thakkar
9754c8ef1f ARM: pxa: Use module_platform_driver
Use module_platform_driver for drivers whose init and exit functions
only register and unregister, respectively.

A simplified version of the Coccinelle semantic patch that performs
this transformation is as follows:

@a@
identifier f, x;
@@
-static f(...) { return platform_driver_register(&x); }

@b depends on a@
identifier e, a.x;
@@
-static e(...) { platform_driver_unregister(&x); }

@c depends on a && b@
identifier a.f;
declarer name module_init;
@@
-module_init(f);

@d depends on a && b && c@
identifier b.e, a.x;
declarer name module_exit;
declarer name module_platform_driver;
@@
-module_exit(e);
+module_platform_driver(x);

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-07-18 12:16:42 +02:00
Robert Jarzmik
4be0856fa3 ARM: pxa: transition to dmaengine phase 1
In order to slowly transition pxa to dmaengine, the legacy code will now
rely on dmaengine to request a channel.

This implies that PXA architecture selects DMADEVICES and PXA_DMA,
which is not pretty. Yet it enables PXA drivers to be ported one by one,
with part of them using dmaengine, and the other part using the legacy
code.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2015-07-18 12:16:33 +02:00
Olof Johansson
d7030a08f6 Some suspend improvements enabling the possibility to wakeup
from usbphy events and a rework of how cpu cores are brought
 uü and down, as it was possible to produce lockups when
 hammering the cpu hotplug functions.
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Merge tag 'v4.3-rockchip32-soc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into next/soc

Merge "Rockchip soc changes for 4.3, part1" from Heiko Stuebner:

Some suspend improvements enabling the possibility to wakeup
from usbphy events and a rework of how cpu cores are brought
up and down, as it was possible to produce lockups when
hammering the cpu hotplug functions.

* tag 'v4.3-rockchip32-soc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  ARM: rockchip: fix broken build
  ARM: rockchip: remove some useless macro in pm.h
  ARM: rockchip: add support holding 24Mhz osc during suspend
  ARM: rockchip: fix the SMP code style
  ARM: rockchip: ensure CPU to enter WFI/WFE state
  ARM: rockchip: fix the CPU soft reset
  ARM: rockchip: restore dapswjdp after suspend

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-17 10:37:08 -07:00
Tony Lindgren
9cf705de06 ARM: OMAP2+: Add support for initializing dm814x clocks
Let's add a minimal clocks for dm814x to get it booted. This is
mostly a placeholder and relies on the PLLs being on from the
bootloader.

Note that the divider clocks work the same way as on dm816x and
am335x.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 02:09:33 -07:00
Tony Lindgren
7c80a3f89c ARM: OMAP2+: Add custom prwdm_operations for 81xx to support dm814x
Looking at the TI kernel tree I noticed that dm81xx need custom
ti81xx_pwrdm_operations. Let's also change dm816x over to use them
as the registers are different for dm81xx compared to others.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 02:09:33 -07:00
Tony Lindgren
185fde6d5b ARM: OMAP2+: Add minimal clockdomains for dm814x
For now, let's just add the ones shared with dm816x.
The dm814x specific ones can be added as they are tested.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 02:09:33 -07:00
Tony Lindgren
9444f10346 ARM: OMAP2+: Fix scm compatible for dm814x
Fix scm compatible for dm814x.

Cc: Matthijs van Duin <matthijsvanduin@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 02:09:10 -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
Suman Anna
228e5fadba ARM: OMAP2+: Remove module references from IOMMU machine layer
The OMAP IOMMU driver has been adapted to the IOMMU framework
for a while now, and it no longer supports being built as a
module. Cleanup all the module related references both from
the code and in the build.

While at it, also relocate a comment around the initcall to
avoid a checkpatch strict warning about using a blank line
after function/struct/union/enum declarations.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-07-16 00:14:50 -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