| Commit message (Collapse) | Author | Age |
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this is currently used as a hardcoded 0x100
offset.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This is in preparation for removing the pointless
irq_banks array.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC DT updates from Arnd Bergmann:
"As usual, this is the largest branch, though this time a little under
half of the total changes with 307 individual non-merge changesets.
The largest changes are the addition of new machines, in particular
the Tegra based Chromebook, the Renesas r8a7794 SoC, and DT support
for the old i.MX1 platform.
Other changes include
- at91: various sam9 and sama5 updates
- exynos: much extended Peach Pi/Pit (Chromebook 2) support
- keystone: new peripherals
- meson: added DT for meson6 SoC
- mvebu: new device support for Armada 370/375
- qcom: improved support for IPQ8064 and MSM8x60
- rockchip: much improved support for rk3288
- shmobile: lots of updates all over the place
- sunxi: dts license change
- sunxi: more a23 device support
- vexpress: CLCD DT description"
* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (308 commits)
ARM: DTS: meson: update DTSI to add watchdog node
ARM: dts: keystone-k2l: fix mdio io start address
ARM: dts: keystone-k2e: fix mdio io start address
ARM: dts: keystone-k2e: update usb1 node for dma properties
ARM: dts: keystone: fix io range for usb_phy0
Revert "Merge tag 'hix5hd2-dt-for-3.18' of git://github.com/hisilicon/linux-hisi into next/dt"
Revert "ARM: dts: hix5hd2: add wdg node"
ARM: dts: add rk3288 i2s controller
ARM: vexpress: Add CLCD Device Tree properties
ARM: bcm2835: add I2S pinctrl to device tree
ARM: meson: documentation: add bindings documentation
ARM: meson: dts: add basic Meson/Meson6/Meson6-atv1200 DTSI/DTS
ARM: dts: mt6589: Change compatible string for GIC
ARM: dts: mediatek: Add compatible property for aquaris5
ARM: dts: mt6589-aquaris5: Add boot argument earlyprintk
ARM: dts: mt6589: Fix typo in GIC unit address
ARM: dts: Build dtb for Mediatek board
ARM: dts: keystone: fix bindings for pcie and usb clock nodes
ARM: dts: keystone: k2l: Fix chip selects for SPI devices
ARM: dts: keystone: add dsp gpio controllers nodes
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As we have support for this in board-rx51-peripherals.c, let's
add it to the .dts files too.
Note that the reset GPIO will eventually go to the driver.
For now let's just pull it down and skip any further reset
in case the bootloader has configured the MAC address so
NFSroot works.
Also note that after 3430-sdp are using proper GPMC timings
we can remove the tests for smsc,lan91c94 in gpmc.c.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Set internal clock source for MMC2 on tao3530.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Thorsten Eisbein <thorsten.eisbein@head-acoustics.de>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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AM57xx processor family are variants of DRA7 family of processors and
targetted at industrial and non-automotive applications.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Arnd Bergmann:
"New and updated SoC support. Among the things new for this release
are:
- at91: Added support for the new SAMA5D4 SoC, following the earlier
SAMA5D3
- bcm: Added support for BCM63XX family of DSL SoCs
- hisi: Added support for HiP04 server-class SoC
- meson: Initial support for the Amlogic Meson6 (aka 8726MX) platform
- shmobile: added support for new r8a7794 (R-Car E2) automotive SoC
Noteworthy changes to existing SoC support are:
- imx: convert i.MX1 to device tree
- omap: lots of power management work
- omap: base support to enable moving to standard UART driver
- shmobile: lots of progress for multiplatform support, still
ongoing"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (171 commits)
ARM: hisi: depend on ARCH_MULTI_V7
CNS3xxx: Fix debug UART.
ARM: at91: fix nommu build regression
ARM: meson: add basic support for MesonX SoCs
ARM: meson: debug: add debug UART for earlyprintk support
irq: Export handle_fasteoi_irq
ARM: mediatek: Add earlyprintk support for mt6589
ARM: hisi: Fix platmcpm compilation when ARMv6 is selected
ARM: debug: fix alphanumerical order on debug uarts
ARM: at91: document Atmel SMART compatibles
ARM: at91: add sama5d4 support to sama5_defconfig
ARM: at91: dt: add device tree file for SAMA5D4ek board
ARM: at91: dt: add device tree file for SAMA5D4 SoC
ARM: at91: SAMA5D4 SoC detection code and low level routines
ARM: at91: introduce basic SAMA5D4 support
clk: at91: add a driver for the h32mx clock
ARM: pxa3xx: provide specific platform_devices for all ssp ports
ARM: pxa: ssp: provide platform_device_id for PXA3xx
ARM: OMAP4+: Remove static iotable mappings for SRAM
ARM: OMAP4+: Move SRAM data to DT
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In order to handle errata I688, a page of sram was reserved by doing a
static iotable map. Now that we use gen_pool to manage sram, we can
completely remove all of these static mappings and use gen_pool_alloc()
to get the one page of sram space needed to implement errata I688.
omap_bus_sync will be NOP until SRAM initialization happens.
Suggested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Use drivers/misc/sram.c driver to manage SRAM on all DT only
OMAP platforms (am33xx, am43xx, omap4 and omap5) instead of
the existing private plat-omap/sram.c
Address and size related data is removed from mach-omap2/sram.c
and now passed to drivers/misc/sram.c from DT.
Users can hence use general purpose allocator apis instead of
OMAP private ones to manage and use SRAM.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Remove the empty am33xx_sram_init() function.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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In sprz318f.pdf "Usage Note 2.7" says that UARTs cannot acknowledge
idle requests in smartidle mode when configured for DMA operations.
This prevents L4 from going idle. So let's use manual idle mode
instead.
Otherwise systems using Sebastian's 8250 patches with DMA will
never enter deeper idle states because of the errata above.
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Commit cc824534d4fe ("ARM: OMAP2+: hwmod: Rearm wake-up interrupts
for DT when MUSB is idled") fixed issues with hung UART wake-up
events by calling _reconfigure_io_chain() when MUSB is connected
or disconnected.
As pointed out by Paul Walmsley, we may need to also call
_reconfigure_io_chain() in other cases, so it should be a separate
flag. Let's add HWMOD_RECONFIG_IO_CHAIN as suggested by Paul.
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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OMAP4, OMAP5 and DRA7 share a lot of common logic and data structures.
These have been enabled in the previous patches, however, this also
means that OMAP5 or DRA7 only builds also need to build OMAP4 logic.
Update to reuse OMAP4 logic.
This fixes the 'undefined reference to 'omap4_pm_init_early'' in
OMAP5 or DRA7 only builds.
Fixes: 6af16a1dac5465c ("ARM: DRA7: Add hook in SoC initcalls to enable pm initialization")
Fixes: 628ed4717000789 ("ARM: OMAP5: Add hook in SoC initcalls to enable pm initialization")
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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OPP is now a normal kernel library selected by its users rather than a
feature that architectures need to enable so ARCH_HAS_OPP serves no
function any more - remove the selects.
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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With consolidated code, now we can add the required hooks for
DRA7 to enable power management.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: minor modifications]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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https://github.com/nmenon/linux-2.6-playground into omap-for-v3.18/soc
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With consolidated code, now we can add the required hooks for
OMAP5 to enable power management.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[nm@ti.com: minor rebase updates]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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On OMAP5 / DRA7, prevent a CPU powerdomain OFF and resulting MPU OSWR
and instead attempt a CPU RET and side effect, MPU RET in suspend.
NOTE: the hardware was originally designed to be capable of achieving
deep power states such as OFF and OSWR, however due to various issues
and risks, deepest valid state was determined to be CSWR - hence we use
the errata framework to handle this case.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: updates]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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Dont assume that all OMAP4+ code will be able to use OMAP4 hotplug
logic. On OMAP5, DRA7, we do not need this in place yet, also,
currently the CPU startup pointer is located in omap4_cpu_pm_info
instead of cpu_pm_ops.
So, isolate the function to hotplug_restart pointer in cpu_pm_ops
where it should have belonged, initalize them as per valid startup
pointers for OMAP4430/60 as in current logic, however provide
dummy_cpu_resume to be the startup location as well.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[nm@ti.com: split this out of original code and isolate it]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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Get rid of all assumptions about always having a sar base on *all*
OMAP4+ platforms. We dont need one on DRA7 and it is not necessary at
this point for OMAP5 either.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: Split and optimize]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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In addition to the standard power-management technique, the OMAP5 / DRA7
MPU subsystem also employs an SR3-APG (mercury) power management
technology to reduce leakage.
It allows for full logic and memories retention on MPU_C0 and MPU_C1 and
is controlled by the PRCM_MPU. Only "Fast-mode" is supported on the
OMAP5 and DRA7 family of processors.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[nm@ti.com: minor consolidation]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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Enables MPUSS ES2 power management mode using ES2_PM_MODE in
AMBA_IF_MODE register.
0x0: OMAP5 ES1 behavior, CPU cores would enter and exit OFF mode together.
Broken! Fortunately, we do not support this anymore.
0x1: OMAP5 ES2, DRA7 behavior, CPU cores are allowed to enter/exit OFF mode
independently.
This is one time settings thanks to always ON domain.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[nm@ti.com: minor conflict resolutions, consolidation for DRA7]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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With EMIF clock-domain put under hardware supervised control, memory
corruption and untraceable crashes are observed on OMAP5. Further
investigation revealed that there is a weakness in the PRCM on this
specific dynamic depedency.
The recommendation is to set MPUSS static dependency towards EMIF
clock-domain to avoid issues. This recommendation holds good for DRA7
family of devices as well.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[rnayak@ti.com: DRA7]
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: conflict resolution, dra7]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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On OMAP5, RM_CPUi_CPUi_CONTEXT offset has changed. Update the code
so that same code works for OMAP4+ devices. DRA7 and OMAP5 have the same
context offset as well.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
[rnayak@ti.com: for DRA7]
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[nm@ti.com: rebase, split/merge etc..]
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
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Provide pdata-quirks for Am437x processor family.
Signed-off-by: Keerthy <j-keerthy@ti.com>
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Provide pdata-quirks for DRA7 processor family.
Signed-off-by: Nishanth Menon <nm@ti.com>
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Provide pdata-quirks for OMAP5 processor family.
Signed-off-by: Nishanth Menon <nm@ti.com>
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Allow the PRM interrupt information to be picked up from device tree.
OMAP3 may use legacy boot and needs to be compatible with old dtbs
(without interrupt populated), for these, we use the value which is
pre-populated.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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OMAP5 and DRA7 can now use pinctrl based I/O daisychain wakeup
capability. So, enable the support.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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"wkup" event at bit offset 0 exists only on OMAP3.
OMAP4430/60 PRM_IRQSTATUS_A9, OMAP5/DRA7 PRM_IRQSTATUS_MPU
register bit 0 is DPLL_CORE_RECAL_ST not wakeup event like OMAP3.
The same applies to AM437x as well.
Remove the wrong definition.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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Allow the PRM interrupt information to be picked up from device tree.
the only exception is for OMAP4 which uses values pre-populated and allows
compatibility with older dtb.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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use the generic function to pick up the prm_instance for a generic logic
which can be reused from OMAP4+
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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PRM device instance can vary depending on SoC. We already handle the
same during reset of the device, However, this is also needed
for other logic instances. So, first abstract this out to a generic
function.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Arnd Bergmann:
"This time around, the cleanup branch contains mostly code removal. A
number of board files for at91, imx and msm have become obsolete
because of the DT conversion and are now ready to be removed. The
OMAP platform has traditionally had its own DMA engine abstraction and
as this is being phased out, a lot of the original code is now unused
and can be removed as well.
S3C24xx can be simplified now that the restart code is a proper device
driver.
Finally, a number of cleanups in shmobile are done to prepare for the
addition of new code in other branches"
* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
ARM: at91: Remove the support for the RSI EWS board
arm: mach-omap2: Convert pr_warning to pr_warn
ARM: OMAP: Remove unused pieces of legacy DMA API
ARM: at91: remove board file for Acme Systems Fox G20
ARM: orion5x: Convert pr_warning to pr_warn
ARM: S3C24XX: remove separate restart code
ARM: EXYNOS: Do not calculate boot address twice
ARM: sunxi: Remove sun4i reboot code from mach directory
ARM: imx: Remove mach-mxt_td60 board file
ARM: shmobile: armadillo800eva legacy: Use rmobile_add_devices_to_domains()
ARM: shmobile: r8a7740: Clean up pm domain table
ARM: shmobile: r8a7740: Use rmobile_add_devices_to_domains()
ARM: shmobile: sh7372: Make domain_devices[] static __initdata
ARM: shmobile: mackerel: Make domain_devices[] static __initdata
clocksource: tcb_clksrc: sanitize IRQ request
ARM: at91/tclib: mask interruptions at shutdown and probe
ARM: at91/tclib: move initialization from alloc to probe
ARM: at91/tclib: prefer using of devm_* functions
ARM: clps711x: Switch CLPS711X subarch to use clk and clocksource driver
ARM: shmobile: r8a7791 is now called "R-Car M2-W"
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Pull "Clean-up for omaps for v3.18 merge window" from Tony Lindgren:
- Remove unused pieces of the legacy DMA API as we're moving to
dmaengine API
- Search and replace to standardize on pr_warn instead of pr_warning
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* tag 'cleanup-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm: mach-omap2: Convert pr_warning to pr_warn
ARM: OMAP: Remove unused pieces of legacy DMA API
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Use the more common pr_warn.
Other miscellanea:
o Realign arguments
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC non-critical bug fixes from Arnd Bergmann:
"These are bug fixes for harmless problems that were not important
enough to get fixed in 3.17. The majority of these are OMAP specific,
but there are also a couple for Marvell mvebu, cns3xxx, and others, as
well as some updates for the MAINTAINERS file.
In particular, Robert Jarzmik and Daniel Mack now volunteered to help
out maintaining the PXA platform, Krzysztof Halasa took over the
cns3xxx platform, Carlo Caione is the maintainer for the new Amlogic
meson platform, and Matthias Brugger is now listed for the mediatek
platform he recently contributed"
* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
MAINTAINERS: update Shawn's email address
MAINTAINERS: condense some Tegra related entries
MAINTAINERS: add Alexandre Courbot for Tegra
MAINTAINERS: CNS3xxx and IXP4xx update.
MAINTAINERS: Add maintainers entry for Mediatek SoCs
arm, vt8500, LLVMLlinux: Use mcr instead of mcr% for mach-vt8500
MAINTAINERS: add a third maintainer to mach-bcm
CNS3xxx: Fix PCIe read size limit.
CNS3xxx: Fix logical PCIe topology.
CNS3xxx: Fix debug UART.
MAINTAINERS: Add entry for the Amlogic MesonX SoCs
MAINTAINERS: update ARM pxa maintainers
ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks
ARM: at91: fix at91sam9263ek DT mmc pinmuxing settings
ARM: mvebu: Netgear RN102: Use Hardware BCH ECC
ARM: Kirkwood: Fix DT based DSA.
ARM: OMAP2+: make of_device_ids const
ARM: omap2: make arrays containing machine compatible strings const
ARM: LPC32xx: Fix reset function
ARM: mvebu: Netgear RN2120: Use Hardware BCH ECC
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of_device_ids (i.e. compatible strings and the respective data) are not
supposed to change at runtime. All functions working with of_device_ids
provided by <linux/of.h> work with const of_device_ids. So mark the
non-const function parameters and structs for OMAP2+ as const, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The definition
static const char *omap3_boards_compat[] __initconst = {
defines a changable array of constant strings. That is you must not do:
*omap3_boards_compat[0] = 'f';
but
omap3_boards_compat[0] = "another string";
is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.
As the struct machine_desc member dt_compat is declared as
const char *const *dt_compat;
making the arrays const is the better alternative over changing all
annotations to __initdata.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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https://github.com/nmenon/linux-2.6-playground into omap-for-v3.18/fixes-not-urgent
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Not all SoCs support OFF mode - for example DRA74/72. So, use valid
power state during CPU hotplug.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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We are using power domain state as RET and logic state as OFF. This
state is OSWR. This may not always be supported on ALL power domains. In
fact, on certain power domains, this might result in a hang on certain
platforms. Instead, depend on powerdomain data to provide accurate
information about the supported powerdomain states and use the
appropriate function to query and use it as part of suspend path.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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Move the logic state as different for each power domain. This allows us
to customize the deepest power state we should target over all for each
powerdomain in the follow on patches.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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powerdomain configuration in OMAP is done using PWRSTCTRL register for
each power domain. However, PRCM lets us write any value we'd like to
the logic and power domain target states, however the SoC integration
tends to actually function only at a few discrete states. These valid
states are already in our powerdomains_xxx_data.c file.
So, provide a function to easily query valid low power state that the
power domain is allowed to go to.
Based on work originally done by Jean Pihet <j-pihet@ti.com>
https://patchwork.kernel.org/patch/1325091/ . There is no attempt to
create a new powerdomain solution here, except fixing issues seen
attempting invalid programming attempts. Future consolidation to the
generic powerdomain framework should consider this requirement as
well.
Similar solutions have been done in product kernels in the past such
as:
https://android.googlesource.com/kernel/omap.git/+blame/android-omap-panda-3.0/arch/arm/mach-omap2/pm44xx.c
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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No need to invoke callback when the clkdm pointer is NULL.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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Update the power domain power states for final production chip
capability. OFF mode, OSWR etc have been descoped for various domains.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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DRA7 supports only CSWR for CPU, MPU power domains. Core power domain
supports upto INA.
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Regression fix for early omap3 revisions for wake-up events that
too some time to narrow down. Although a bit intrusive, this would
be good to get into the -rc cycle as there are quite a few boards
out there with omap3 es2.1 and es3.0, and we have those in at least
three boot test systems too that show errors without this patch.
* tag 'fix-v3.17-io-chain-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP3: Fix I/O chain clock line assertion timed out error
Signed-off-by: Olof Johansson <olof@lixom.net>
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We are getting "PRM: I/O chain clock line assertion timed out" errors
on early omaps for device tree based booting. This is because we are
unconditionally calling reconfigure_io_chain while legacy booting
has omap3_has_io_chain_ctrl() checks in place in omap_hwmod.c.
For device tree based booting, we are calling reconfigure_io_chain
unconditionally from pinctrl framework. So we need to add a check for
omap3_has_io_chain_ctrl() to avoid the errors for trying to access
a register that does not exist.
For es3.0, the documentation in "4.11.2 Device Off-Mode Configuration"
just mentions PM_WKEN_WKUP[8] bit. For es3.1, there's a new chapter in
documentation for "4.11.2.2 I/O Wake-Up Mechanism" that describes the
PM_WKEN_WKUP[16] ST_IO_CHAIN bit. So PM_WKEN_WKUP[16] bit did not get
added until in es3.1 probaly to fix issues with flakey wake-up events.
We are doing proper checks for ST_IO_CHAIN already in id.c and with
omap3_has_io_chain_ctrl(). For more information, see also commit
b02b917211d5 ("ARM: OMAP3: PM: fix I/O wakeup and I/O chain clock
control detection").
Let's fix the issue by selecting the right function during init for
reconfigure_io_chain depending on the omap revision. For es3.0 and
earlier we need to just toggle EN_IO. By doing this, we can move the
check for omap3_has_io_chain_ctrl() from omap_hwmod.c to the init code
in prm_3xxx.c. And then we can unconditionally call reconfigure_io_chain.
Thanks to Paul Walmsley and Nishanth Menon for help with debugging the
issue.
Fixes: 30a69ef785e8 ("ARM: OMAP: Move DT wake-up event handling over to use pinctrl-single-omap")
Cc: Kevin Hilman <khilman@kernel.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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