Commit Graph

1118 Commits

Author SHA1 Message Date
Ludovic Desroches 8423536fe4 ARM: at91: fix pinctrl driver selection
Move the selection of the pinctrl driver to SoC family level since we
have two pinctrl drivers. It is useless to select one which is not
compatible with the SoC.

[abelloni: fixed pm.c when only sama2d2 is selected]
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2015-12-04 18:54:53 +01:00
Linus Torvalds 56e0464980 ARM: SoC platform updates for v4.4
New and/or improved SoC support for this release:
 
  - Marvell Berlin:
    * Enable standard DT-based cpufreq
    * Add CPU hotplug support
  - Freescale:
    * Ethernet init for i.MX7D
    * Suspend/resume support for i.MX6UL
  - Allwinner:
    * Support for R8 chipset (used on NTC's $9 C.H.I.P board)
  - Mediatek:
    * SMP support for some platforms
  - Uniphier:
    * L2 support
    * Cleaned up SMP support, etc.
 
 + A handful of other patches around above functionality, and a few other
 smaller changes.
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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 Olof Johansson:
 "New and/or improved SoC support for this release:

  Marvell Berlin:
     - Enable standard DT-based cpufreq
     - Add CPU hotplug support

  Freescale:
     - Ethernet init for i.MX7D
     - Suspend/resume support for i.MX6UL

  Allwinner:
     - Support for R8 chipset (used on NTC's $9 C.H.I.P board)

  Mediatek:
     - SMP support for some platforms

  Uniphier:
     - L2 support
     - Cleaned up SMP support, etc.

  plus a handful of other patches around above functionality, and a few
  other smaller changes"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
  ARM: uniphier: rework SMP operations to use trampoline code
  ARM: uniphier: add outer cache support
  Documentation: EXYNOS: Update bootloader interface on exynos542x
  ARM: mvebu: add broken-idle option
  ARM: orion5x: use mac_pton() helper
  ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
  ARM: sunxi: Add R8 support
  ARM: digicolor: select pinctrl/gpio driver
  arm: berlin: add CPU hotplug support
  arm: berlin: use non-self-cleared reset register to reset cpu
  ARM: mediatek: add smp bringup code
  ARM: mediatek: enable gpt6 on boot up to make arch timer working
  soc: mediatek: Fix random hang up issue while kernel init
  soc: ti: qmss: make acc queue support optional in the driver
  soc: ti: add firmware file name as part of the driver
  Documentation: dt: soc: Add description for knav qmss driver
  ARM: S3C64XX: Use PWM lookup table for mach-smartq
  ARM: S3C64XX: Use PWM lookup table for mach-hmt
  ARM: S3C64XX: Use PWM lookup table for mach-crag6410
  ARM: S3C64XX: Use PWM lookup table for smdk6410
  ...
2015-11-10 14:56:23 -08:00
Patrick Doyle 5fcf8d1a0e ARM: at91: pm: at91_pm_suspend_in_sram() must be 8-byte aligned
fncpy() requires that the source and the destination are both 8-byte
aligned.

Signed-off-by: Patrick Doyle <pdoyle@irobot.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Fixes: d94e688cae ("ARM: at91/pm: move the copying the sram function to the sram initialization phase")
Cc: <stable@vger.kernel.org> # 4.1+
2015-10-19 22:58:44 +02:00
Nicolas Ferre df70aeef60 clk: at91: add generated clock driver
Add a new type of clocks that can be provided to a peripheral.
In addition to the peripheral clock, this new clock that can use several
input clocks as parents can generate divided rates.
This would allow a peripheral to have finer grained clocks for generating
a baud rate, clocking an asynchronous part or having more
options in frequency.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[sboyd@codeaurora.org: Transition to new clk_hw provider APIs]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-10-01 12:48:11 -07:00
Vladimir Zapolskiy 7385817359 genalloc: add name arg to gen_pool_get() and devm_gen_pool_create()
This change modifies gen_pool_get() and devm_gen_pool_create() client
interfaces adding one more argument "name" of a gen_pool object.

Due to implementation gen_pool_get() is capable to retrieve only one
gen_pool associated with a device even if multiple gen_pools are created,
fortunately right at the moment it is sufficient for the clients, hence
provide NULL as a valid argument on both producer devm_gen_pool_create()
and consumer gen_pool_get() sides.

Because only one created gen_pool per device is addressable, explicitly
add a restriction to devm_gen_pool_create() to create only one gen_pool
per device, this implies two possible error codes returned by the
function, account it on client side (only misc/sram).  This completes
client side changes related to genalloc updates.

[akpm@linux-foundation.org: gen_pool_get() cleanup]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-04 16:54:41 -07:00
Linus Torvalds 50686e8a3a ARM: SoC platform updates for v4.3
New or improved SoC support:
 
 - Addition of support for Atmel's SAMA5D2 SoC
 - Addition of Freescale i.MX6UL
 - Improved support of TI's DM814x platform
 - Misc fixes and improvements for RockChip platforms
 - Marvell MVEBU suspend/resume support
 
 A few driver changes that ideally would belong in the drivers branch are
 also here (acked by appropriate maintainers):
 
 - Power key input driver for Freescale platforms (svns)
 - RTC driver updates for Freescale platforms (svns/mxc)
 - Clk fixes for TI DM814/816X
 
 + a bunch of other changes for various platforms
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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 Olof Johansson:
 "New or improved SoC support:

   - add support for Atmel's SAMA5D2 SoC
   - add support for Freescale i.MX6UL
   - improved support for TI's DM814x platform
   - misc fixes and improvements for RockChip platforms
   - Marvell MVEBU suspend/resume support

  A few driver changes that ideally would belong in the drivers branch
  are also here (acked by appropriate maintainers):

   - power key input driver for Freescale platforms (svns)
   - RTC driver updates for Freescale platforms (svns/mxc)
   - clk fixes for TI DM814/816X

  + a bunch of other changes for various platforms"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
  ARM: rockchip: pm: Fix PTR_ERR() argument
  ARM: imx: mach-imx6ul: Fix allmodconfig build
  clk: ti: fix for definition movement
  ARM: uniphier: drop v7_invalidate_l1 call at secondary entry
  memory: kill off set_irq_flags usage
  rtc: snvs: select option REGMAP_MMIO
  ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE
  ARM: BCM: Enable ARM erratum 798181 for BRCMSTB
  ARM: OMAP2+: Fix power domain operations regression caused by 81xx
  ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend
  ARM: rockchip: set correct stabilization thresholds in suspend
  ARM: rockchip: rename osc_switch_to_32k variable
  ARM: imx6ul: add fec MAC refrence clock and phy fixup init
  ARM: imx6ul: add fec bits to GPR syscon definition
  rtc: mxc: add support of device tree
  dt-binding: document the binding for mxc rtc
  rtc: mxc: use a second rtc clock
  ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback
  soc: mediatek: Fix SCPSYS compilation
  ARM: at91/soc: add basic support for new sama5d2 SoC
  ...
2015-09-01 12:18:40 -07:00
Linus Torvalds c5fc249862 ARM: SoC cleanups for v4.3
A large cleanup branch this release, with a healthy 10k negative line delta.
 
 Most of this is removal of legacy (non-DT) support of shmobile
 platforms. There is also removal of two non-DT platforms on OMAP,
 and the plat-samsung directory is cleaned out by moving most of the
 previously shared-location-but-not-actually-shared files from there to
 the appropriate mach directories instead.
 
 There are other sets of changes in here as well:
 
  - Rob Herring removed use of set_irq_flags under all platforms and
    moved to genirq alternatives
  - A series of timer API conversions to set-state interface
  - ep93xx, nomadik and ux500 cleanups from Linus Walleij
  - __init annotation fixes from Nicolas Pitre
  + a bunch of other changes that all add up to a nice set of cleanups
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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:
 "A large cleanup branch this release, with a healthy 10k negative line
  delta.

  Most of this is removal of legacy (non-DT) support of shmobile
  platforms.  There is also removal of two non-DT platforms on OMAP, and
  the plat-samsung directory is cleaned out by moving most of the
  previously shared-location-but-not-actually-shared files from there to
  the appropriate mach directories instead.

  There are other sets of changes in here as well:

   - Rob Herring removed use of set_irq_flags under all platforms and
     moved to genirq alternatives

   - a series of timer API conversions to set-state interface

   - ep93xx, nomadik and ux500 cleanups from Linus Walleij

   - __init annotation fixes from Nicolas Pitre

   + a bunch of other changes that all add up to a nice set of cleanups"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (108 commits)
  ARM/fb: ep93xx: switch framebuffer to use modedb only
  ARM: gemini: Setup timer3 as free running timer
  ARM: gemini: Use timer1 for clockevent
  ARM: gemini: Add missing register definitions for gemini timer
  ARM: ep93xx/timer: Migrate to new 'set-state' interface
  ARM: nomadik: push accelerometer down to boards
  ARM: nomadik: move l2x0 setup to device tree
  ARM: nomadik: selectively enable UART0 on boards
  ARM: nomadik: move hog code to use DT hogs
  ARM: shmobile: Fix mismerges
  ARM: ux500: simplify secondary CPU boot
  ARM: SAMSUNG: remove keypad-core header in plat-samsung
  ARM: SAMSUNG: local watchdog-reset header in mach-s3c64xx
  ARM: SAMSUNG: local onenand-core header in mach-s3c64xx
  ARM: SAMSUNG: local irq-uart header in mach-s3c64xx
  ARM: SAMSUNG: local backlight header in mach-s3c64xx
  ARM: SAMSUNG: local ata-core header in mach-s3c64xx
  ARM: SAMSUNG: local regs-usb-hsotg-phy header in mach-s3c64xx
  ARM: SAMSUNG: local spi-core header in mach-s3c24xx
  ARM: SAMSUNG: local nand-core header in mach-s3c24xx
  ...
2015-09-01 12:10:20 -07:00
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
Nicolas Pitre 19c233b79d ARM: appropriate __init annotation for const data
Init data marked const should be annotated with __initconst for
correctness and not __initdata.  In some cases the array gathering
references to that data has to be marked const as well. This fixes
LTO builds that otherwise fail with section mismatch errors.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28 13:55:27 +02:00
Stephen Boyd 09efb0070d ARM: at91: Remove clk-provider.h include
This file doesn't use the clk provider APIs. Remove the include.

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20 10:52:23 -07:00
Vladimir Zapolskiy 0030edf296 genalloc: rename dev_get_gen_pool() to gen_pool_get()
To be consistent with other genalloc interface namings, rename
dev_get_gen_pool() to gen_pool_get().  The original omitted "dev_" prefix
is removed, since it points to argument type of the function, and so it
does not bring any useful information.

[akpm@linux-foundation.org: update arch/arm/mach-socfpga/pm.c]
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Mark Brown <broonie@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Alan Tull <atull@opensource.altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-06-30 19:45:01 -07:00
Alexandre Belloni 196b44ea0f ARM: at91: remove useless Makefile.boot
Makefile.boot is not used anymore, remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20 16:38:00 +02:00
Alexandre Belloni 09099f1942 ARM: at91: remove mach/at91_ramc.h and mach/at91rm9200_mc.h
mach/at91_ramc.h and mach/at91rm9200_mc.h aren't necessary anymore, remove them.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20 16:37:49 +02:00
Alexandre Belloni d7d45f2555 ARM: at91/pm: use the atmel-mc syscon defines
Use the defines from atmel-mc.h instead of at91rm9200_sdramc.h

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20 16:37:44 +02:00
Alexandre Belloni b8ccd9c39a ARM: at91: drop sam9_smc.c
sam9_smc.c has no users anymore, remove it along with both sam9_smc.h and
mach/at91sam9_smc.h

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20 16:37:24 +02:00
Arnd Bergmann 89522f0f8b Fourth batch of cleanup for 4.1:
- 1 issues revealed by the kbuild test robot fixed
 - move of some functions and macros into relevant files to be able to
   streamline the at91 specific header afterwards
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Merge tag 'at91-cleanup4_bis' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/multiplatform

Pull "Fourth batch of cleanup for 4.1" from Nicolas Ferre:

- 1 issues revealed by the kbuild test robot fixed
- move of some functions and macros into relevant files to be able to
  streamline the at91 specific header afterwards

* tag 'at91-cleanup4_bis' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: at91/pm: move AT91_MEMCTRL_* to pm.h
  ARM: at91/pm: move the standby functions to pm.c
  ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
2015-04-14 01:50:21 +02:00
Alexandre Belloni 2e57dc087c ARM: at91/pm: move AT91_MEMCTRL_* to pm.h
the AT91_MEMCTRL_* defines are only used by the pm code, move them to pm.h

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-05 21:59:52 +02:00
Alexandre Belloni a18d0699dd ARM: at91/pm: move the standby functions to pm.c
The standby functions are now only used in pm.c, move them there.

Also, they are not inlined as a pointer to those functions is passed to the
cpuidle driver.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-05 21:59:51 +02:00
Alexandre Belloni 176a1b3dad ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
When compiling for multiplatform for both ARMv6 and ARMv7, the default compiler
flags are for ARMv6, and results in:

arch/arm/mach-at91/pm_suspend.S:144: Error: selected processor does not support ARM mode `dsb'

Enforce ARMv7 flags for pm_suspend.o when CPU_V7 is selected.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-05 21:59:51 +02:00
Nicolas Ferre e8621d83c1 ARM: at91: add a Kconfig dependency on multi-platform
When building a legacy (non-multi) platforms and if the ARCH_AT91 config option
is enabled there is a build error. We need AT91 to depend on multi-platform
core type options.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 10:47:49 -07:00
Alexandre Belloni 1164f672d7 ARM: at91: drop AT91_TIMER_HZ
Drop AT91_TIMER_HZ as this can be handled using HZ_FIXED. Initial help message
was:

On AT91rm9200 chips where you're using a system clock derived
from the 32768 Hz hardware clock, this tick rate should divide
it exactly: use a power-of-two value, such as 128 or 256, to
reduce timing errors caused by rounding.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19 16:37:45 +01:00
Alexandre Belloni 23b8408246 ARM: at91: remove hardware.h
hardware.h is now mostyl unused, move the remaining declarations to pm.c and
remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19 16:37:45 +01:00
Alexandre Belloni 4c8056543e ARM: at91: remove SoC headers
Remove the now useless SoC headers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19 16:37:45 +01:00
Alexandre Belloni f56d8f7c29 ARM: at91: remove useless mach/cpu.h
mach/cpu.h is not used anymore, remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19 16:37:45 +01:00
Alexandre Belloni 0794261104 ARM: at91: remove unused headers
Following the switch to multiplatform, uncompress.h is not used anymore. Remove
it.
at91_dbgu.h is also not used anymore

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19 16:37:44 +01:00
Alexandre Belloni 41141127a8 ARM: at91: switch to multiplatform
Switch AT91 to multiplatform as all SoCs are properly handled.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19 16:37:44 +01:00
Alexandre Belloni 8590ca655a ARM: at91: remove useless include
Both drivers using the system timer are now converted to an MFD. mach/at91_st.h
is now useless.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-16 17:03:08 +01:00
Alexandre Belloni b53cdd0322 ARM: at91: time: move the system timer driver to drivers/clocksource
Import at91rm9200_time.c from mach-at91 as timer-atmel-st.c. Further cleanup is
required to get rid of the mach-at91 headers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-16 17:03:05 +01:00
Alexandre Belloni bbfc97e1b1 ARM: at91: properly initialize timer
Use clocksource_of_init to initialize the system timer instead of relying on a
custom function.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-16 17:03:04 +01:00
Alexandre Belloni d8d1c6c8b0 ARM: at91: at91rm9200: remove deprecated arm_pm_restart
Now that a proper driver is available, remove at91rm9200_restart.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-16 17:03:03 +01:00
Alexandre Belloni 598e085590 ARM: at91: remove old setup
The old setup is not used anymore, remove it

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 18:01:10 +01:00
Alexandre Belloni 075fcc9f71 ARM: at91: sama5d4: remove useless map_io
All the peripheral remapped at io_map are taken care of by their respective
drivers.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 18:01:09 +01:00
Alexandre Belloni e7336083e6 ARM: at91: sama5 use SoC detection infrastructure
Use the soc detection infrastructure for sama5 initialization.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 16:23:36 +01:00
Alexandre Belloni d18032d62f ARM: at91: at91sam9: use SoC detection infrastructure
Use the soc detection infrastructure for at91sam9 initialization.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 15:11:05 +01:00
Alexandre Belloni 7735f03822 ARM: at91: at91rm9200 use SoC detection infrastructure
Use the soc detection infrastructure for at91rm9200 initialization.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 15:11:04 +01:00
Boris BREZILLON ea4abe7f3a ARM: at91: add soc detection infrastructure
Add new structures and functions to handle AT91 SoC detection.

[alexandre.belloni@free-electrons.com: reworked DBGU detection]
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 15:11:04 +01:00
Alexandre Belloni b7e9def923 ARM: at91: remove unused _matrix.h headers
The matrix headers are not used anymore, remove them.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 15:11:04 +01:00
Alexandre Belloni 0d3441928b ARM: at91: remove unused at91_ioremap_matrix and header
at91_ioremap_matrix and the at91_matrix.h header are not used anymore, remove
them.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 15:11:04 +01:00
Arnd Bergmann 1be27c62d6 ARM: at91: remove NEED_MACH_IO_H
The mach/io.h header on at91 is used to support a nonstandard I/O space
window for the cf card driver. This changes the driver to use pci_ioremap_io
in order to have the standard location, and then removes the custom
mach/io.h.

[alexandre.belloni@free-electrons.com: Added PCI dependency]
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 15:11:04 +01:00
Wenyou Yang 385acc0dac ARM: at91/pm: flush data cache and clean, invalidate and disable the L2 cache
Flush data cache, and clean, invalidate and disable the L2 cache before going to suspend.
Restore the L2 cache configuration and re-enable the L2 cache after waking up.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:55 +01:00
Wenyou Yang 20567658b8 ARM: at91/pm_suspend: add the WFI instruction support for ARMv7
Add the WFI instruction to make the cpu to the idle state.
In the meanwhile, disable the processor's clock.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:55 +01:00
Wenyou Yang e32d995cf9 ARM: at91/pm: remove unused void (*at91_pm_standby)(void)
Because the standby mode use the same sram function as the suspend to memory
mode, void (*at91_pm_standby)(void) doesn't need, remove it.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:55 +01:00
Wenyou Yang 5726a8b968 ARM: at91/pm: rename function name: at91_slow_clock() --> at91_pm_suspend_sram_fn()
As the file name is renamed, rename the function name at91_slow_clock()
--> at91_pm_suspend_sram_fn(), rename the function handler's name at the
same time.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
[nicolas.ferre@atmel.com: little update of the commit message]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:54 +01:00
Wenyou Yang 828b98fa38 ARM: at91/pm: rename file name: pm_slowclock.S --> pm_suspend.S
Because the sram function is used for both suspend to memory and the suspend
to standby mode, renaming is more elegant.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:54 +01:00
Wenyou Yang 23be4be5a6 ARM: at91/pm: standby mode uses same sram function as suspend to memory mode
To simply the PM code, the suspend to standby mode uses same sram function
as the suspend to memory mode, running in the internal SRAM, instead of the
respective code for each mode.

For the suspend to standby mode, the master clock doesn't switch to the slow
clock, and PLLA and the main oscillator doesn't turn off as well.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:53 +01:00
Wenyou Yang d94e688cae ARM: at91/pm: move the copying the sram function to the sram initialization phase
To decrease the suspend time, move copying the sram function to the sram
initialization phase, instead of every time go to suspend.

In the meanwhile, substitute fncpy() for memcpy().

If there is no sram allocated for PM, the PM is not supported.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 13:34:22 +01:00
Wenyou Yang 0ab285c2fa ARM: at91/pm_slowclock: create the procedure to handle the sdram self-refresh
To decrease the duplicated code, create the procedure
to contain both activing and exiting the sdram self-refresh mode.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 11:12:07 +01:00
Sylvain Rochet d18c570ef3 ARM: at91/pm_slowclock: remove clocks which are already stopped when entering slow clock mode
Assume USB PLL and PLL B are already stopped before entering sleep mode.

Removed PLL B from slow clock code, all drivers are supposed to properly
unprepare clocks.

Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Wenyou.Yang <wenyou.yang@atmel.com>
[nicolas.ferre@atmel.com: remove the warning printed in pm.c]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 11:12:06 +01:00
Wenyou Yang 09fc78a601 ARM: at91/pm: remove CONFIG_AT91_SLOW_CLOCK config option
The slow clock always exists, selecting CONFIG_AT91_SLOW_CLOCK config
is unnecessary for the suspend to memory mode.
For this mode the master clock should always switch to the slow clock.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 11:12:06 +01:00
Wenyou Yang 896bc871a4 ARM: at91: move "select SRAM" under SOC_AT91SAM9 and SOC_SAMA5
To simply the PM config the CONFIG_AT91_SLOW_CLOCK option will be removed,
so move "select SRAM" from under AT91_SLOW_CLOCK, add "select SRAM if PM"
under SOC_AT91SAM9 and SOC_SAMA5

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13 11:12:05 +01:00