Commit Graph

506262 Commits

Author SHA1 Message Date
Olof Johansson 5602d12a86 General cleanups for MSM/QCOM for 4.1
* Removal of mach-msm and associated drivers cleanups that have been
   ack'd by associated maintainers
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Merge tag 'qcom-cleanup-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/cleanup

Merge "qcom cleanup changes for 4.1" from Kumar Gala:

General cleanups for MSM/QCOM for 4.1

* Removal of mach-msm and associated drivers cleanups that have been
  ack'd by associated maintainers

* tag 'qcom-cleanup-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom:
  mmc: Remove msm_sdcc driver
  gpio: Remove gpio-msm-v1 driver
  ARM: Remove mach-msm and associated ARM architecture code
  + Linux 4.0-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 13:20:42 -07:00
Olof Johansson 0a47acfa16 Third Round of Renesas ARM Based SoC Cleanup for v4.1
* Remove default cpuidle driver, it does not appear to serve any purpose
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Merge tag 'renesas-soc-cleanup3-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup

Merge "Third Round of Renesas ARM Based SoC Cleanup for v4.1" from Simon
Horman:

* Remove default cpuidle driver, it does not appear to serve any purpose

* tag 'renesas-soc-cleanup3-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: cpuidle: Remove the pointless default driver

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 11:26:08 -07:00
Olof Johansson c25a9fada4 Renesas ARM Based SoC PM Updates for v4.1
* Consolidate the pm code for R-Car Gen2
 * Correct SYSCIER value for r8a7790 and r8a7791 SoCs
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Merge tag 'renesas-pm-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup

Merge "Renesas ARM Based SoC PM Updates for v4.1" from Simon Horman:

* Consolidate the pm code for R-Car Gen2
* Correct SYSCIER value for r8a7790 and r8a7791 SoCs

* tag 'renesas-pm-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: Consolidate the pm code for R-Car Gen2
  ARM: shmobile: r8a7791: Correct SYSCIER value
  ARM: shmobile: r8a7790: Correct SYSCIER value

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 10:52:29 -07:00
Olof Johansson 69f2a08047 Drop three omap3 legacy board-*.c files
We want to get omap3 moved over to device tree only based booting.
 
 These three board-*.c files seem to be inactive, so let's attempt
 to drop them now rather than later. With these dropped, we have
 omap3 device tree conversion status in a known state. Then we know
 that we have .dts support for the remaining omap3 board-*.c files,
 or it's being worked on.
 
 By dropping these files now, we can simply revert them if really
 needed for the next few merge cycles if we run into suprises.
 Reverting things later on will not be so easily done.
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Merge tag 'v4.1-legacy' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup

Merge "omap legacy boot clean-up for v4.1" from Tony Lindgren:

Drop three omap3 legacy board-*.c files

We want to get omap3 moved over to device tree only based booting.

These three board-*.c files seem to be inactive, so let's attempt
to drop them now rather than later. With these dropped, we have
omap3 device tree conversion status in a known state. Then we know
that we have .dts support for the remaining omap3 board-*.c files,
or it's being worked on.

By dropping these files now, we can simply revert them if really
needed for the next few merge cycles if we run into suprises.
Reverting things later on will not be so easily done.

* tag 'v4.1-legacy' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Remove legacy support for omap3 TouchBook
  ARM: OMAP3: Remove legacy support for devkit8000
  ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-03 10:51:02 -07:00
Olof Johansson 5ec5e792fe This pull request contains cleanups and
non-urgent fixes for DaVinci McASP platform
 support code.
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Merge tag 'davinci-for-v4.1/mcasp' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/cleanup

Merge "DaVinci McASP changes for v4.1" from Sekhar Nori:

This pull request contains cleanups and non-urgent fixes for DaVinci
McASP platform support code.

* tag 'davinci-for-v4.1/mcasp' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  ARM: davinci: dm646x: Add interrupt resource for McASPs
  ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x
  ARM: davinci: dm646x: Clean up the McASP DMA resources
  ARM: davinci: devices-da8xx: Add support for McASP2 on da830
  ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation
  ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs
  ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-04-01 17:56:33 -07:00
Stephen Boyd 27842bb18b mmc: Remove msm_sdcc driver
This driver is orphaned now that mach-msm has been removed.
Delete it.

Cc: Chris Ball <chris@printf.net>
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-27 11:31:02 -05:00
Stephen Boyd 8c7b69ae43 gpio: Remove gpio-msm-v1 driver
This driver is orphaned now that mach-msm has been removed.
Delete it.

Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-27 11:31:02 -05:00
Stephen Boyd c0c89fafa2 ARM: Remove mach-msm and associated ARM architecture code
The maintainers for mach-msm no longer have any plans to support
or test the platforms supported by this architecture[1]. Most likely
there aren't any active users of this code anyway, so let's
delete it.

[1] http://lkml.kernel.org/r/20150307031212.GA8434@fifo99.com
Cc: David Brown <davidb@codeaurora.org>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-27 11:31:02 -05:00
Daniel Lezcano df67a2b72e ARM: shmobile: cpuidle: Remove the pointless default driver
The default idle driver uses one state with the WFI instruction.
The default idle routine invokes WFI when no cpuidle driver is present.

The default cpuidle driver is pointless and does not give more than the
default idle routine and moreover it pulls all the mathematics tied with
the cpuidle governor for nothing, hence consuming more energy.

Remove the default driver, the related code and register the driver directly.

[compiled only - no board - no test]

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-03-19 11:02:07 +09:00
Peter Ujfalusi 6cfdf55b77 ARM: davinci: dm646x: Add interrupt resource for McASPs
The interrupt can be used for error recovery.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 17:19:50 +05:30
Peter Ujfalusi b38434145b ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x
McASP1 TX interrupt is 30, not 32 on DM646x DMSoC.

While at it remove the bogus AEMIF interrupt entry from
dm646x_default_priorities[]. AEMIF interrupt on DM6467 is
60 not 30 and the entry for the correct interrupt number
is already present in the same table.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[nsekhar@ti.com: remove bogus entry from dm646x_default_priorities[]]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 17:17:36 +05:30
Peter Ujfalusi 256b20a54a ARM: davinci: dm646x: Clean up the McASP DMA resources
Add names to the DMA resources and remove the RX DMA dummy part for McASP1.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:05 +05:30
Peter Ujfalusi 3775c31376 ARM: davinci: devices-da8xx: Add support for McASP2 on da830
da830 has three McASP blocks.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:05 +05:30
Peter Ujfalusi c96aacb132 ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation
Both DA830 and DA850 has McASP0 module, so do not restrict the use of
McASP0 for da850 only.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:04 +05:30
Peter Ujfalusi 80f7d0e03e ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs
On da8xx McASP TX/RX interrupt requests are combined.
The interrupt can be used for error recovery.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:04 +05:30
Peter Ujfalusi 184981d204 ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request
Add "tx" or "rx" as resource name for the DMA resources.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2015-03-18 15:52:04 +05:30
Tony Lindgren 01ea0d4247 ARM: OMAP2+: Remove legacy support for omap3 TouchBook
We've been moving all omap2+ based systems to boot in device tree only
mode for a few years now. Only omap3 has legacy booting support
remaining. Most omap3 boards already have related arch/arm/boot/*.dts*
files for booting with device tree.

As it seems this board only has minimal support upstreamed for the
legacy booting and has not seen activity for on the mailing lists
for a few years, let's attempt to remove the related legacy board-*.c
file.

I do not have this board, but it seems getting the same level of
support with device tree based booting is mostly just configuring
the .dts file. And there is no need to upgrade the boot loader as
we can boot with appended DTB too. And most of the omap3 boards
seem to be related to omap3-evm, and omap3beagleboard that are
supported with device tree based booting.

If somebody is using this board actively with the mainline kernel,
please communicate this to the linux-omap mailing list so we can
get the board booting with device tree based support. I can help
some too getting the minimal device tree based booting going if
help is needed.

The reason for attempting to remove this board now is that I'd
rather get the remaining omap3 legacy booting support into a known
state where we at least have a .dts file being written for the
remaining legacy boards. That is because for the next few merge
cycles we can still revert this patch if absolutely necessary,
but I'd rather not get suprised by missing .dts files at the point
where we are ready to drop all remaining omap3 legacy booting
support later on.

Cc: Gregoire Gentil <gregoire@gentil.com>
Cc: Radek Pilar <mrkva@mrkva.eu>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-03-16 17:07:26 -07:00
Tony Lindgren f56a1b24f5 ARM: OMAP3: Remove legacy support for devkit8000
We've been moving all omap2+ based systems to boot in device tree only
mode for a few years now. Only omap3 has legacy booting support
remaining. Most omap3 boards already have related arch/arm/boot/*.dts*
files for booting with device tree.

As it seems this board only has minimal support upstreamed for the
legacy booting and has not seen activity for on the mailing lists
for a few years, let's attempt to remove the related legacy board-*.c
file.

I do not have this board, but it seems getting the same level of
support with device tree based booting is mostly just configuring
the .dts file. And there is no need to upgrade the boot loader as
we can boot with appended DTB too. And most of the omap3 boards
seem to be related to omap3-evm, and omap3beagleboard that are
supported with device tree based booting.

If somebody is using this board actively with the mainline kernel,
please communicate this to the linux-omap mailing list so we can
get the board booting with device tree based support. I can help
some too getting the minimal device tree based booting going if
help is needed.

The reason for attempting to remove this board now is that I'd
rather get the remaining omap3 legacy booting support into a known
state where we at least have a .dts file being written for the
remaining legacy boards. That is because for the next few merge
cycles we can still revert this patch if absolutely necessary,
but I'd rather not get suprised by missing .dts files at the point
where we are ready to drop all remaining omap3 legacy booting
support later on.

http://www.embest-tech.com/product/single-board-computers/index.html

Cc: Thomas Weber <thomas@tomweber.eu>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-03-16 17:05:37 -07:00
Tony Lindgren 35cc73dae6 ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board
We've been moving all omap2+ based systems to boot in device tree only
mode for a few years now. Only omap3 has legacy booting support
remaining. Most omap3 boards already have related arch/arm/boot/*.dts*
files for booting with device tree.

As it seems this board only has minimal support upstreamed for the
legacy booting and has not seen activity for on the mailing lists
for a few years, let's attempt to remove the related legacy board-*.c
file.

I do not have this board, but it seems getting the same level of
support with device tree based booting is mostly just configuring
the .dts file. And there is no need to upgrade the boot loader as
we can boot with appended DTB too. And most of the omap3 boards
seem to be related to omap3-evm, and omap3beagleboard that are
supported with device tree based booting.

If somebody is using this board actively with the mainline kernel,
please communicate this to the linux-omap mailing list so we can
get the board booting with device tree based support. I can help
some too getting the minimal device tree based booting going if
help is needed.

The reason for attempting to remove this board now is that I'd
rather get the remaining omap3 legacy booting support into a known
state where we at least have a .dts file being written for the
remaining legacy boards. That is because for the next few merge
cycles we can still revert this patch if absolutely necessary,
but I'd rather not get suprised by missing .dts files at the point
where we are ready to drop all remaining omap3 legacy booting
support later on.

Also looks like this board is no longer listed on ema-tech.com
product page at:

http://ema-tech.com/en/categories.html

Cc: Jason Lam <lzg@ema-tech.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2015-03-16 16:56:58 -07:00
Gaku Inami a8caad6690 ARM: shmobile: Consolidate the pm code for R-Car Gen2
The pm code for R-Car Gen2 is scatterd in each SoC. These files
(pm-r8a7790.c/pm-r8a7791.c) have some overlap code. This change
consolidate the pm code for R-Car Gen2 into one.

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-03-17 08:05:13 +09:00
Simon Horman 78420b5dca ARM: shmobile: r8a7791: Correct SYSCIER value
Set the SYSCIER as per the values indicated in the documentation.
The value previously used appears to been copied from the r8a7779
implementation but on closer inspection is not correct for the r8a7791.

Fixes: 5f6108bb96 ("ARM: shmobile: r8a7791 SYSC setup code")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-03-17 06:46:29 +09:00
Simon Horman ee72f6adfd ARM: shmobile: r8a7790: Correct SYSCIER value
Set the SYSCIER as per the values indicated in the documentation.
The value previously used appears to been copied from the r8a7779
implementation but on closer inspection is not correct for the r8a7790.

Fixes: a48f165509 ("ARM: shmobile: r8a7790 SYSC setup code")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2015-03-17 06:46:29 +09:00
Arnd Bergmann 9fb71bc0d5 Second Round of Renesas ARM Based SoC Cleanup for v4.1
* Remove restart callback from r8a7740 SoC
 * Remove unnecessary check on always set CONFIG_COMMON_CLK from
   shared R-Car Gen2 SoC code
 * Remove stray closing parenthesis in SCIF debug description
   for R-Car Gen2 SoC
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Merge tag 'renesas-soc-cleanup2-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup

Merge "Second Round of Renesas ARM Based SoC Cleanup for v4.1" into next/cleanup:

* Remove restart callback from r8a7740 SoC
* Remove unnecessary check on always set CONFIG_COMMON_CLK from
  shared R-Car Gen2 SoC code
* Remove stray closing parenthesis in SCIF debug description
  for R-Car Gen2 SoC

* tag 'renesas-soc-cleanup2-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7740: Remove restart callback
  ARM: shmobile: R-Car Gen2: CONFIG_COMMON_CLK is always set
  ARM: shmobile: Remove stray closing parenthesis in debug description
2015-03-16 15:21:13 +01:00
Arnd Bergmann 63fb2e854d Second batch of cleanup for 4.1:
- remove unused matrix header files
 - dbgu + chip identification: new driver for SoC detection
   this allow to remove all additional io mapping
 - remove old non-standard AT91 setup code
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Merge tag 'at91-cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/cleanup

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

- remove unused matrix header files
- dbgu + chip identification: new driver for SoC detection
  this allow to remove all additional io mapping
- remove old non-standard AT91 setup code

First batch of cleanup for 4.1:
  - little phy fixup that is not needed anymore
  - hudge cleanup of the PM code:
  - removal of "use slow clock" option => always use this for suspend to RAM
  - quicker suspend as the asm function is copied only once to SRAM
  - use of the same asm function for "standby" and "mem" types of suspend
    actions
  - adaptation to the ARMv7 processors

* tag 'at91-cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: (44 commits)
  ARM: at91: remove old setup
  ARM: at91: sama5d4: remove useless map_io
  ARM: at91: sama5 use SoC detection infrastructure
  ARM: at91: at91sam9: use SoC detection infrastructure
  ARM: at91: at91rm9200 use SoC detection infrastructure
  ARM: at91: add soc detection infrastructure
  ARM: at91/dt: introduce atmel,<chip>-dbgu
  ARM: at91: remove unused _matrix.h headers
  ARM: at91: remove unused at91_ioremap_matrix and header
  ARM: at91: remove NEED_MACH_IO_H
  ARM: at91/pm: flush data cache and clean, invalidate and disable the L2 cache
  ARM: at91/pm_suspend: add the WFI instruction support for ARMv7
  ARM: at91/pm: remove unused void (*at91_pm_standby)(void)
  ARM: at91/pm: rename function name: at91_slow_clock() --> at91_pm_suspend_sram_fn()
  ARM: at91/pm: rename file name: pm_slowclock.S --> pm_suspend.S
  ARM: at91/pm: standby mode uses same sram function as suspend to memory mode
  ARM: at91/pm: move the copying the sram function to the sram initialization phase
  ARM: at91/pm_slowclock: create the procedure to handle the sdram self-refresh
  ARM: at91/pm_slowclock: remove clocks which are already stopped when entering slow clock mode
  ARM: at91/pm: remove CONFIG_AT91_SLOW_CLOCK config option
  ...
2015-03-13 22:08:58 +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 8c07f664a6 ARM: at91/dt: introduce atmel,<chip>-dbgu
The DBGU is not a simple UART and we need to be able to distinguish it from the
other UARTs, in particular to get its address and check the chip id.

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 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
Wenyou Yang 05d5970c72 ARM: at91/pm_slowclock: remove the unused code related with SLOWDOWN_MASTER_CLOCK
The SLOWDOWN_MASTER_CLOCK definition is not used, remove the redundant code.

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 11:11:57 +01:00
Wenyou Yang 047794e136 ARM: at91: pm: change at91_pm_set_standby() to static
Since at91_pm_set_standby() will not be used out of the pm.c file,
change its attribute from extern to static, remove its declaration as well.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-12 15:30:38 +01:00
Boris Brezillon 936748fd34 ARM: at91: remove ksz8081 phy fixup registration for sama5d4ek board
Commit 2b0ba96cea ("net: phy: micrel: disable NAND-tree for KSZ8021,
KSZ8031, KSZ8051, KSZ8081") automated the NAND-tree mode deactivation
process, thus making this phy fixup useless.
Remove it along with the associated headers inclusion.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
[nicolas.ferre@atmel.com: remove selection of PHYLIB in at91 Kconfig]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-12 15:30:32 +01:00
Nicolas Ferre 5e7f82d730 Third fixes batch for AT91 on 4.0:
- clock fixes for USB
 - compatible string changes for handling USB IP differences
   (+ needed AHB matrix syscon)
 - fix of a compilation error in PM code
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Merge tag 'at91-fixes3' into at91-4.1-cleanup

Third fixes batch for AT91 on 4.0:
- clock fixes for USB
- compatible string changes for handling USB IP differences
  (+ needed AHB matrix syscon)
- fix of a compilation error in PM code
2015-03-12 15:30:03 +01:00
Nicolas Ferre d14b8f390e Second fixes batch for AT91 on 4.0:
- little fix for !MMU debug: may also help for randconfig
 - fix of 2 errors in LCD clock definitions
 - in PM code, not writing the key leads to not execute the action
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Merge tag 'at91-fixes2' into at91-4.1-cleanup

Second fixes batch for AT91 on 4.0:
- little fix for !MMU debug: may also help for randconfig
- fix of 2 errors in LCD clock definitions
- in PM code, not writing the key leads to not execute the action
2015-03-12 15:30:00 +01:00