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The L2C-220 is different from the L2C-210 and L2C-310 in that every
operation is a background operation: this means we have to use
spinlocks to protect all operations, and we have to wait for every
operation to complete.
Should a second operation be attempted while a previous operation
is in progress, the response will be an imprecise abort.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Where no errata affect the L2C-310 handlers, they are functionally
equivalent to L2C-210. Re-use the L2C-210 handlers for the L2C-310
part.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Implement L2C-310 erratum 588369 by overriding the invalidate range
and flush range methods in the outer_cache operations structure.
This allows us to sensibly contain the erratum code in one place
without affecting other locations/implemetations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Implement L2C-310 erratum 727915 by overriding the flush_all method
in the outer_cache operations structure. This allows us to sensibly
contain the erratum code in one place without affecting other
locations or implementations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add L2C-210 specific cache operation handlers. These are tailored to
the requirements of the L2C-210 cache controller, which doesn't
require any workarounds. We avoid using the way operations during
normal operation, which means we can avoid locking: the only time
we use the way operations are during initialisation, and when
disabling the cache.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Move the pl310_set_debug() into the l2c-310 code area, and don't hide
it with ifdefs. Rename it to l2c310_set_debug().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The l2x0 unlocking code is only called from l2x0_enable() now, so move
the logic entirely into that function and simplify it.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rename the pl310 save/resume functions to have a l2c310 prefix - this
is it's official name. Use a local cached copy of the l2x0_base
virtual address, and also realise that many of the resume function
tails are the same as the enable functions, so make a call to the
enable function instead of duplicating that code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add the save/resume code hooks to the non-OF implementations as well.
There's no reason for the non-OF implementations to be any different
from the OF implementations.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Make one of them purely "English", and the other purely technical.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rather than putting quirk handling in __l2c_init(), move it out to a
separate function which individual implementations can specify. This
helps to localise the quirks to those implementations which require
them.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rather than having this hacked into the OF initialiation function, we
can handle this via the enable function instead. While here, clean
up that code and comments a little.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Avoid unnecessary writes to the auxiliary control register if the
register already contains the required value. This allows us to
avoid invoking the platforms secure monitor code unnecessarily.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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We should write the auxillary control register before unlocking: the
write may be necessary to enable non-secure access to the lock
registers.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Providing an enable method gives L2 cache controllers a chance to do
special handling at enable time. This allows us to remove a hack in
l2x0_unlock() for Marvell Aurora L2 caches.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Back in the mists of time, someone decided that it would be a good idea
to group like functions together - so all the save functions in one
place, all the resume functions in another, all the OF parsing functions
some place else.
This makes it difficult to get an overview on what a particular
implementation is doing - grouping an implementations specific functions
together makes more sense, because you can see what it's doing without
the clutter of other implementations.
Organise it according to implementation.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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There's no reason this functionality should be specific to DT, so move
it into the common initialisation function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Pass the iomem address into this function so we don't have to keep
accessing it from a global.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rather than having a boolean and other tricks to disable some bits of
l2x0_init(), split this function into two parts: a common part shared
between OF and non-OF, and the non-OF part.
The common part can take a block of function pointers, and the cache
ID (to cope with Aurora's DT specified ID.) Eliminate the redundant
setting of l2x0_base in the OF case, moving it to the non-OF init
function.
This allows us to localise the OF-specific initialisation handling
from the non-OF handling.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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The revision namespace is specific to the L2 cache part, so don't name
these with generic identifiers, use a part specific identifier.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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cache_wait_way() is actually used to wait for a particular mask to
report clear; it's not really got much to do with cache ways at all.
Indeed, it gets used to wait for the C bit to clear on older caches.
Rename this with a more generic function name which better reflects
its purpose: l2c_wait_mask().
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Provide a generic helper function for way based operations. These are
always background operations, and thus have to be waited for before a
new operation is commenced. This helper extracts that requirement from
several locations in the code.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Split the cache unlock code out of l2x0_unlock(). We want to be able
to re-use this functionality later.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Provide a generic function which always calls the set_debug method.
This will be used later in the series as some work-arounds require
that the debug register be written.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Rename a few things to help distinguish their function(s):
l2x0_of_data -> l2c_init_data
setup -> of_parse
add of_ prefix to OF specific data
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Remove NULL initialisers, make these all __initconst structures, and
order their members in the same order as the structure declaration.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Make it easier to declare L2 cache controller DT IDs by using a macro.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Add WARN_ON() conditions to outer_disable() to ensure that its
requirements aren't violated.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Update sunxi_defconfig and multi_v7 with all the latest Allwinner
additions.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Linux 3.15-rc6
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/dt
Merge "omap dt fixes and and clocks for v3.16 merge window" from Tony Lindgren:
Most likely the last pull request from me for omap changes for
v3.16 that's dts fixes for clocks and enabling few features
that were still being discussed earlier:
- A bunch of omap clock related dts fixes queued by Tero Kristo.
- Enable parallel nand on am437x that was not merged earlier as
I requested more information about the muxing for it. And
we need to also enable ecc hardware support for am43xx.
- Enable the modem support for n900 that was dropped earlier
because we had to fix the related hwmod entry first with patch
ARM: OMAP2+: Fix ssi hwmod entry to allow idling.
- And finally, add the omap2 clock dts files. These will allow
us to enable the dt clocks and drop the legacy clocks for omap2
with a follow-up patch once the related clock driver binding
changes are merged.
* tag 'omap-for-v3.16/dt-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: omap2 clock data
ARM: dts: am437x-gp-evm: add support for parallel NAND flash
ARM: OMAP2+: gpmc: enable BCH_HW ecc-scheme for AM43xx platforms
ARM: dts: omap3 a83x: fix duplicate usb pin config
ARM: dts: omap3: set mcbsp2 status
ARM: dts: omap3-n900: Add modem support
ARM: dts: omap3-n900: Add SSI support
ARM: OMAP2+: Fix ssi hwmod entry to allow idling
ARM: dts: AM4372: clk: efuse based crystal frequency detect
ARM: dts: am43xx-clocks.dtsi: add ti, set-rate-parent to display clock path
ARM: dts: omap5-clocks.dtsi: add ti, set-rate-parent to dss_dss_clk
ARM: dts: omap4: add twd clock to DT
ARM: dts: omap54xx-clocks: Correct abe_iclk clock node
ARM: dts: omap54xx-clocks: remove the autoidle properties for clock nodes
ARM: dts: am43x-clock: add tbclk data for ehrpwm
ARM: dts: am33xx-clock: Fix ehrpwm tbclk data
ARM: dts: set 'ti,set-rate-parent' for dpll4_m5 path
ARM: dts: use ti,fixed-factor-clock for dpll4_m5x2_mul_ck
ARM: dts: am43xx-clocks: use ti, fixed-factor-clock for dpll_per_clkdcoldo
Signed-off-by: Olof Johansson <olof@lixom.net>
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When targetting ARCH_MULTIPLATFORM, we may include support for SoCs with
PCI-capable devices (e.g. mach-virt with virtio-pci).
This patch allows PCI support to be selected for these SoCs by selecting
CONFIG_MIGHT_HAVE_PCI when CONFIG_ARCH_MULTIPLATFORM=y and removes the
individual selections from multi-platform enabled SoCs.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers
Merge "Samsung exynos-cpuidle updates for v3.16" from Kukjin Kim:
- From Daniel Lezcano:
This patchset relies on the cpm_pm notifier to initiate the
powerdown sequence operations from pm.c instead cpuidle.c.
Thus the cpuidle driver is no longer dependent from arch
specific code as everything is called from the pm.c file.
* tag 'exynos-cpuidle' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (94 commits)
ARM: EXYNOS: Fix kernel panic when unplugging CPU1 on exynos
ARM: EXYNOS: Move the driver to drivers/cpuidle directory
ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c
ARM: EXYNOS: Pass the AFTR callback to the platform_data
ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c
ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier
ARM: EXYNOS: Move the AFTR state function into pm.c
ARM: EXYNOS: Encapsulate the AFTR code into a function
ARM: EXYNOS: Disable cpuidle for exynos5440
ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle
ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle
ARM: EXYNOS: Remove ifdef for scu_enable in pm
ARM: EXYNOS: Move scu_enable in the cpu_pm notifier
ARM: EXYNOS: Use the cpu_pm notifier for pm
ARM: EXYNOS: Fix S5P_WAKEUP_STAT call for cpuidle
ARM: EXYNOS: Move some code inside the idle_finisher for cpuidle
ARM: EXYNOS: Encapsulate register access inside a function for pm
ARM: EXYNOS: Change function name prefix for cpuidle
ARM: EXYNOS: Use cpuidle_register
ARM: EXYNOS: Prevent forward declaration for cpuidle
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Samsung clock updates for 3.16" from Kukjin Kim:
In this time, it is having dependency with arch/arm/ for 3.16,
I pulled them into samsung tree from Tomasz under agreement from Mike.
- Pull for_3.16/exynos5260 from Tomasz Figa:
"This pull request contains patches preparing Samsung Common Clock Framework
helpers to support Exynos5260 by adding support for multiple clock providers
and then adding clock driver for Exynos5260."
- Pull for_3.16/clk_fixes_non_critical from Tomasz Figa:
"This pull requests contains a number of non-critical fixes for Samsung clock
framework and drivers, including:
1) a series of fixes for Exynos5420 to correct clock definitions and make the
driver closer to the documentation,
2) several missing clocks and clock IDs added to Exynos4, Exynos5250 and
Exynos5420 drivers,
3) fix for incorrect initialization of clock table with NULL,
4) compiler warning fix."
- Pull for_3.16/clk_cleanup from Tomasz Figa:
"This pull requests contains minor clean-up related to Samsung clock
support, including:
1) move Kconfig entries of Samsung clock drivers to drivers/clk,
2) compile drivers/clk/samsung conditionally when COMMON_CLK_SAMSUNG is
selected,
3) remove obsolete Kconfig lines after moving s3c24xx to CCF."
- Pull for_3.16/exynos3250 from Tomasz Figa:
"This small pull request contains a patch adding clock driver for Exynos3250,
which depends on previous pull requests in this series."
- add dt bindings for exynos3250 clock
- add exynos5800 specific clocks in current exynos5420 clock
Note that this branch is based on s3c24xx ccf branch
* tag 'samsung-clk' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (59 commits)
clk: exynos5420: Add 5800 specific clocks
dt-bindings: add documentation for Exynos3250 clock controller
ARM: S3C24XX: fix merge conflict
clk: samsung: exynos3250: Add clocks using common clock framework
drivers: clk: use COMMON_CLK_SAMSUNG for Samsung clock support
ARM: S3C24XX: move S3C24XX clock Kconfig options to Samsung clock Kconfig file
ARM: select COMMON_CLK_SAMSUNG for ARCH_EXYNOS and ARCH_S3C64XX
clk: samsung: add new Kconfig for Samsung common clock option
ARM: S3C24XX: Remove omitted Kconfig selects and conditionals
clk: samsung: exynos5420: add more registers to restore list
clk: samsung: exynos5420: add misc clocks
clk: samsung: exynos5420: update clocks for MAU Block
clk: samsung: exynos5420: fix register offset for sclk_bpll
clk: samsung: exynos5420: correct sysmmu-mfc parent clocks
clk: samsung: exynos5420: update clocks for FSYS and FSYS2 blocks
clk: samsung: exynos5420: update clocks for WCORE block
clk: samsung: exynos5420: update clocks for PERIS and GEN blocks
clk: samsung: exynos5420: update clocks for PERIC block
clk: samsung: exynos5420: update clocks for DISP1 block
clk: samsung: exynos5420: update clocks for G2D and G3D blocks
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Exynos MCPM support for v3.16" from Kukjin Kim:
- adding MCPM backend support for SMP secondary boot and core switching
on Samsung's Exynos5420.
Tested on exynos5420-smdk5420 and exynos5420 based chromebook (peach-pit)
using the "/dev/b.L_switcher" user interface. Secondary core boot-up has
also been tested on both the boards.
* tag 'exynos-mcpm' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Add MCPM call-back functions
ARM: dts: add CCI node for exynos5420
ARM: EXYNOS: Add generic cluster power control functions
ARM: EXYNOS: use generic exynos cpu power control functions
ARM: EXYNOS: Add generic cpu power control functions for exynos SoCs
Signed-off-by: Olof Johansson <olof@lixom.net>
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http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/dt
Merge "Samsung 2nd DT updates for v3.16" from Kukjin Kim:
exynos4
- add hsotg device, exynos_usbphy nodes
- add PMU syscon and audio subsystem nodes
- replace number by macro in clock binding
exynos4210-universal_c210
- add external sd card node and multimedia nodes
- enable USB functionality
exynos4412-trats2
- enable usb nodes and usb gagdet functionality
- add cm36651 light/proximity sensor node
- fixed gpio key node
exynos5250 and exynos5420
- add pmu syscon handle and sysreg system controller nodes
- add support for usb2phy
- replace number by macro in clock binding
- add USB 2.0 support on exynos5420
exynos5420-peach-pit
- move dp hpd gpio pin to pinctrl_0
* tag 'samsung-dt-2' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (21 commits)
ARM: dts: enable usb nodes for exynos4412-trats2
ARM: dts: add hsotg device node for exynos4
ARM: dts: add exynos_usbphy node for exynos4
ARM: dts: add PMU syscon node for exynos4
ARM: dts: add pmu syscon handle to exynos5420 hdmi
ARM: dts: add pmu syscon handle to exynos5250 hdmi
ARM: dts: replace number by macro in clock binding for exynos5420
ARM: dts: replace number by macro in clock binding for exynos5250
ARM: dts: replace number by macro in clock binding for exynos4
ARM: dts: add external sd card node for exynos4210-universal_c210
ARM: dts: add multimedia nodes for exynos4210-universal_c210
ARM: dts: enable USB functionality for exynos4210-universal_c210
ARM: dts: Enable USB gadget functionality for exynos4210-trats
ARM: dts: Add audio subsystem nodes to exynos4.dtsi
ARM: dts: fixed gpio key node for exynos4412-trats2
ARM: dts: add cm36651 light/proximity sensor node for exynos4412-trats2
ARM: dts: Add USB 2.0 support on exynos5420
ARM: dts: Add usb2phy support on exynos5420
ARM: dts: Add usb2phy to exynos5250
ARM: dts: Add sysreg sytem controller node to exynos5250 and exynos5420
...
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http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
Merge "Samsung cleanup for v3.16" from Kukjin Kim:
- use a common macro v7_exit_coherency_flush macro instead of local function
- cleanup mach-exynos/Makefile and remove inclusion plat/cpu.h in mach-exynos
- migrate exynos macros from plat-samsung to mach-exynos
- cleanup s3c24xx debug macro/earlyprintk to remove arch dependency
- fixed compilation error for cpufreq due to moving header in this branch
: use of_machine_is_compatible() instead of soc_is_exynos...()
Note that based on tags/samsung-clk and tags/samsung-fixes.
* tag 'samsung-cleanup' of http://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
cpufreq: exynos: Fix the compile error
ARM: S3C24XX: move debug-macro.S into the common space
ARM: S3C24XX: use generic DEBUG_UART_PHY/_VIRT in debug macro
ARM: S3C24XX: trim down debug uart handling
ARM: compressed/head.S: remove s3c24xx special case
ARM: EXYNOS: Remove unnecessary inclusion of cpu.h
ARM: EXYNOS: Migrate Exynos specific macros from plat to mach
ARM: EXYNOS: Remove exynos_subsys registration
ARM: EXYNOS: Remove duplicate lines in Makefile
ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disabling
ARM: dts: Remove g2d_pd node for exynos5420
ARM: dts: Remove mau_pd node for exynos5420
ARM: exynos_defconfig: enable HS-I2C to fix for mmc partition mount
ARM: dts: disable MDMA1 node for exynos5420
ARM: EXYNOS: fix the secondary CPU boot of exynos4212
Signed-off-by: Olof Johansson <olof@lixom.net>
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Signed-off-by: Kumar Gala <galak@codeaurora.org>
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Add device-tree file for APQ8084-MTP board, which belongs
to the Snapdragon 805 family.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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Add support for the Qualcomm Snapdragon 805 APQ8084 SoC. It is
used on APQ8084-MTP and other boards.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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Add information about the APQ8084 debug UART physical and virtual
addresses in the DEBUG_QCOM_UARTDM Kconfig help section.
Signed-off-by: Georgi Djakov <gdjakov@mm-sol.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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Add basic APQ8064 SoC include device tree and support for basic booting on
the IFC6410 board. Also, keep dtb build list and qcom_dt_match in sorted
order.
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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* Move SoC peripherals into an SoC container node
* Move serial enabling into board file (qcom-msm8660-surf.dts)
* Cleanup cpu node to match binding spec, enable-method and compatible
should be per cpu, not part of the container
* Add GSBI node and configuration of GSBI controller
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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* Move SoC peripherals into an SoC container node
* Move serial enabling into board file (qcom-msm8960-cdp.dts)
* Cleanup cpu node to match binding spec, enable-method and compatible
should be per cpu, not part of the container
* Drop interrupts property from l2-cache node as its not part of the
binding spec
* Add GSBI node and configuration of GSBI controller
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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This has been unused since omap4 board files went away.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This adds support for the tsc2005 touchscreen
to the Nokia N900 DTS file.
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Put architecture-specific assembly code where it belongs,
allowing for support of additional architectures such as arm64 in
the future.
Signed-off-by: Christopher Covington <cov@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On sam9x5, dedicated CTS (and RTS) pins are unusable together with the
LCDC, the EMAC, or the MMC because they share the same line.
Moreover, the USART controller doesn't handle DTR/DSR/DCD/RI signals,
so we have to control them via GPIO.
This patch permits to use GPIOs to control the CTS/RTS/DTR/DSR/DCD/RI
signals.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This is needed for gpiod_get_direction().
Otherwise, it returns -EINVAL.
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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* Move SoC peripherals into an SoC container node
* Move serial enabling into board file (qcom-apq8074-dragonboard.dts)
* Move spi pinctrl into board file
* Cleanup cpu node to match binding spec, enable-method and compatible
should be per cpu, not part of the container
* Drop interrupts property from l2-cache node as its not part of the
binding spec
* Move timer node out of SoC container
Signed-off-by: Kumar Gala <galak@codeaurora.org>
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