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With legacy booting, the platform init code was taking care of
the configuring of GPIOs. With device tree based booting, things
may or may not work depending what bootloader has configured or
if the legacy platform code gets called.
Let's add support for the pwrdn and reset GPIOs to the smc91x
driver to fix the issues of smc91x not working properly when
booted in device tree mode.
And let's change n900 to use these settings as some versions
of the bootloader do not configure things properly causing
errors.
Reported-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull MTD update from Brian Norris:
"Sorry for delaying this a bit later than usual. There's one mild
regression from 3.16 that was noticed during the 3.17 cycle, and I
meant to send a fix for it along with this pull request. I'll
probably try to queue it up for a later pull request once I've had a
better look at it, hopefully by -rc2 at the latest.
Summary for this pull:
NAND
- Cleanup for Denali driver
- Atmel: add support for new page sizes
- Atmel: fix up 'raw' mode support
- Atmel: miscellaneous cleanups
- New timing mode helpers for non-ONFI NAND
- OMAP: allow driver to be (properly) built as a module
- bcm47xx: RESET support and other cleanups
SPI NOR
- Miscellaneous cleanups, to prepare framework for wider use (some
further work still pending)
- Compile-time configuration to select 4K vs. 64K support for flash
that support both (necessary for using UBIFS on some SPI NOR)
A few scattered code quality fixes, detected by Coverity
See the changesets for more"
* tag 'for-linus-20141015' of git://git.infradead.org/linux-mtd: (59 commits)
mtd: nand: omap: Correct CONFIG_MTD_NAND_OMAP_BCH help message
mtd: nand: Force omap_elm to be built as a module if omap2_nand is a module
mtd: move support for struct flash_platform_data into m25p80
mtd: spi-nor: add Kconfig option to disable 4K sectors
mtd: nand: Move ELM driver and rename as omap_elm
nand: omap2: Replace pr_err with dev_err
nand: omap2: Remove horrible ifdefs to fix module probe
mtd: nand: add Hynix's H27UCG8T2ATR-BC to nand_ids table
mtd: nand: support ONFI timing mode retrieval for non-ONFI NANDs
mtd: physmap_of: Add non-obsolete map_rom probe
mtd: physmap_of: Fix ROM support via OF
MAINTAINERS: add l2-mtd.git, 'next' tree for MTD
mtd: denali: fix indents and other trivial things
mtd: denali: remove unnecessary parentheses
mtd: denali: remove another set-but-unused variable
mtd: denali: fix include guard and license block of denali.h
mtd: nand: don't break long print messages
mtd: bcm47xxnflash: replace some magic numbers
mtd: bcm47xxnflash: NAND_CMD_RESET support
mtd: bcm47xxnflash: add cmd_ctrl handler
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Pull clock tree updates from Mike Turquette:
"The clk tree changes for 3.18 are dominated by clock drivers. Mostly
fixes and enhancements to existing drivers as well as new drivers.
This tag contains a bit more arch code than I usually take due to some
OMAP2+ changes. Additionally it contains the restart notifier
handlers which are merged as a dependency into several trees.
The PXA changes are the only messy part. Due to having a stable tree
I had to revert one patch and follow up with one more fix near the tip
of this tag. Some dead code is introduced but it will soon become
live code after 3.18-rc1 is released as the rest of the PXA family is
converted over to the common clock framework.
Another trend in this tag is that multiple vendors have started to
push the complexity of changing their CPU frequency into the clock
driver, whereas this used to be done in CPUfreq drivers.
Changes to the clk core include a generic gpio-clock type and a
clk_set_phase() function added to the top-level clk.h api. Due to
some confusion on the fbdev mailing list the kernel boot parameters
documentation was updated to further explain the clk_ignore_unused
parameter, which is often required by users of the simplefb driver.
Finally some fixes to the locking around the clock debugfs stuff was
done to prevent deadlocks when interacting with other subsystems."
* tag 'clk-for-linus-3.18' of git://git.linaro.org/people/mike.turquette/linux: (99 commits)
clk: pxa clocks build system fix
Revert "arm: pxa: Transition pxa27x to clk framework"
clk: samsung: register restart handlers for s3c2412 and s3c2443
clk: rockchip: add restart handler
clk: rockchip: rk3288: i2s_frac adds flag to set parent's rate
doc/kernel-parameters.txt: clarify clk_ignore_unused
arm: pxa: Transition pxa27x to clk framework
dts: add devicetree bindings for pxa27x clocks
clk: add pxa27x clock drivers
arm: pxa: add clock pll selection bits
clk: dts: document pxa clock binding
clk: add pxa clocks infrastructure
clk: gpio-gate: Ensure gpiod_ APIs are prototyped
clk: ti: dra7-atl-clock: Mark the device as pm_runtime_irq_safe
clk: ti: LLVMLinux: Move __init outside of type definition
clk: ti: consider the fact that of_clk_get() might return an error
clk: ti: dra7-atl-clock: fix a memory leak
clk: ti: change clock init to use generic of_clk_init
clk: hix5hd2: add I2C clocks
clk: hix5hd2: add watchdog0 clocks
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Pull ACPI and power management updates from Rafael Wysocki:
"Features-wise, to me the most important this time is a rework of
wakeup interrupts handling in the core that makes them work
consistently across all of the available sleep states, including
suspend-to-idle. Many thanks to Thomas Gleixner for his help with
this work.
Second is an update of the generic PM domains code that has been in
need of some care for quite a while. Unused code is being removed, DT
support is being added and domains are now going to be attached to
devices in bus type code in analogy with the ACPI PM domain. The
majority of work here was done by Ulf Hansson who also has been the
most active developer this time.
Apart from this we have a traditional ACPICA update, this time to
upstream version 20140828 and a few ACPI wakeup interrupts handling
patches on top of the general rework mentioned above. There also are
several cpufreq commits including renaming the cpufreq-cpu0 driver to
cpufreq-dt, as this is what implements generic DT-based cpufreq
support, and a new DT-based idle states infrastructure for cpuidle.
In addition to that, the ACPI LPSS driver is updated, ACPI support for
Apple machines is improved, a few bugs are fixed and a few cleanups
are made all over.
Finally, the Adaptive Voltage Scaling (AVS) subsystem now has a tree
maintained by Kevin Hilman that will be merged through the PM tree.
Numbers-wise, the generic PM domains update takes the lead this time
with 32 non-merge commits, second is cpufreq (15 commits) and the 3rd
place goes to the wakeup interrupts handling rework (13 commits).
Specifics:
- Rework the handling of wakeup IRQs by the IRQ core such that all of
them will be switched over to "wakeup" mode in suspend_device_irqs()
and in that mode the first interrupt will abort system suspend in
progress or wake up the system if already in suspend-to-idle (or
equivalent) without executing any interrupt handlers. Among other
things that eliminates the wakeup-related motivation to use the
IRQF_NO_SUSPEND interrupt flag with interrupts which don't really
need it and should not use it (Thomas Gleixner and Rafael Wysocki)
- Switch over ACPI to handling wakeup interrupts with the help of the
new mechanism introduced by the above IRQ core rework (Rafael Wysocki)
- Rework the core generic PM domains code to eliminate code that's
not used, add DT support and add a generic mechanism by which
devices can be added to PM domains automatically during enumeration
(Ulf Hansson, Geert Uytterhoeven and Tomasz Figa).
- Add debugfs-based mechanics for debugging generic PM domains
(Maciej Matraszek).
- ACPICA update to upstream version 20140828. Included are updates
related to the SRAT and GTDT tables and the _PSx methods are in the
METHOD_NAME list now (Bob Moore and Hanjun Guo).
- Add _OSI("Darwin") support to the ACPI core (unfortunately, that
can't really be done in a straightforward way) to prevent
Thunderbolt from being turned off on Apple systems after boot (or
after resume from system suspend) and rework the ACPI Smart Battery
Subsystem (SBS) driver to work correctly with Apple platforms
(Matthew Garrett and Andreas Noever).
- ACPI LPSS (Low-Power Subsystem) driver update cleaning up the code,
adding support for 133MHz I2C source clock on Intel Baytrail to it
and making it avoid using UART RTS override with Auto Flow Control
(Heikki Krogerus).
- ACPI backlight updates removing the video_set_use_native_backlight
quirk which is not necessary any more, making the code check the
list of output devices returned by the _DOD method to avoid
creating acpi_video interfaces that won't work and adding a quirk
for Lenovo Ideapad Z570 (Hans de Goede, Aaron Lu and Stepan Bujnak)
- New Win8 ACPI OSI quirks for some Dell laptops (Edward Lin)
- Assorted ACPI code cleanups (Fabian Frederick, Rasmus Villemoes,
Sudip Mukherjee, Yijing Wang, and Zhang Rui)
- cpufreq core updates and cleanups (Viresh Kumar, Preeti U Murthy,
Rasmus Villemoes)
- cpufreq driver updates: cpufreq-cpu0/cpufreq-dt (driver name change
among other things), ppc-corenet, powernv (Viresh Kumar, Preeti U
Murthy, Shilpasri G Bhat, Lucas Stach)
- cpuidle support for DT-based idle states infrastructure, new ARM64
cpuidle driver, cpuidle core cleanups (Lorenzo Pieralisi, Rasmus
Villemoes)
- ARM big.LITTLE cpuidle driver updates: support for DT-based
initialization and Exynos5800 compatible string (Lorenzo Pieralisi,
Kevin Hilman)
- Rework of the test_suspend kernel command line argument and a new
trace event for console resume (Srinivas Pandruvada, Todd E Brandt)
- Second attempt to optimize swsusp_free() (hibernation core) to make
it avoid going through all PFNs which may be way too slow on some
systems (Joerg Roedel)
- devfreq updates (Paul Bolle, Punit Agrawal, Ãrjan Eide).
- rockchip-io Adaptive Voltage Scaling (AVS) driver and AVS entry
update in MAINTAINERS (Heiko Stübner, Kevin Hilman)
- PM core fix related to clock management (Geert Uytterhoeven)
- PM core's sysfs code cleanup (Johannes Berg)"
* tag 'pm+acpi-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (105 commits)
ACPI / fan: printk replacement
PM / clk: Fix crash in clocks management code if !CONFIG_PM_RUNTIME
PM / Domains: Rename cpu_data to cpuidle_data
cpufreq: cpufreq-dt: fix potential double put of cpu OF node
cpufreq: cpu0: rename driver and internals to 'cpufreq_dt'
PM / hibernate: Iterate over set bits instead of PFNs in swsusp_free()
cpufreq: ppc-corenet: remove duplicate update of cpu_data
ACPI / sleep: Rework the handling of ACPI GPE wakeup from suspend-to-idle
PM / sleep: Rename platform suspend/resume functions in suspend.c
PM / sleep: Export dpm_suspend_late/noirq() and dpm_resume_early/noirq()
ACPICA: Introduce acpi_enable_all_wakeup_gpes()
ACPICA: Clear all non-wakeup GPEs in acpi_hw_enable_wakeup_gpe_block()
ACPI / video: check _DOD list when creating backlight devices
PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h
cpufreq: Replace strnicmp with strncasecmp
cpufreq: powernv: Set the cpus to nominal frequency during reboot/kexec
cpufreq: powernv: Set the pstate of the last hotplugged out cpu in policy->cpus to minimum
cpufreq: Allow stop CPU callback to be used by all cpufreq drivers
PM / devfreq: exynos: Enable building exynos PPMU as module
PM / devfreq: Export helper functions for drivers
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Pull ARM SoC driver updates from Arnd Bergmann:
"These are changes for drivers that are intimately tied to some SoC and
for some reason could not get merged through the respective subsystem
maintainer tree.
Most of the new code is for the Keystone Navigator driver, which is
new base support that is going to be needed for their hardware
accelerated network driver and other units.
Most of the commits are for moving old code around from at91 and omap
for things that are done in device drivers nowadays.
- at91: move reset, poweroff, memory and clocksource code into
drivers directories
- socfpga: add edac driver (through arm-soc, as requested by Boris)
- omap: move omap-intc code to drivers/irqchip
- sunxi: added an RTC driver for sun6i
- omap: mailbox driver related changes
- keystone: support for the "Navigator" component
- versatile: new reboot, led and soc drivers"
* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (92 commits)
bus: arm-ccn: Fix spurious warning message
leds: add device tree bindings for register bit LEDs
soc: add driver for the ARM RealView
power: reset: driver for the Versatile syscon reboot
leds: add a driver for syscon-based LEDs
drivers/soc: ti: fix build break with modules
MAINTAINERS: Add Keystone Multicore Navigator drivers entry
soc: ti: add Keystone Navigator DMA support
Documentation: dt: soc: add Keystone Navigator DMA bindings
soc: ti: add Keystone Navigator QMSS driver
Documentation: dt: soc: add Keystone Navigator QMSS bindings
rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtc
rtc: sun6i: Add sun6i RTC driver
irqchip: omap-intc: remove unnecessary comments
irqchip: omap-intc: correct maximum number or MIR registers
irqchip: omap-intc: enable TURBO idle mode
irqchip: omap-intc: enable IP protection
irqchip: omap-intc: remove unnecesary of_address_to_resource() call
irqchip: omap-intc: comment style cleanup
irqchip: omap-intc: minor improvement to omap_irq_pending()
...
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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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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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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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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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The naming convention of this driver was always under the scanner, people
complained that it should have a more generic name than cpu0, as it manages all
CPUs that are sharing clock lines.
Also, in future it will be modified to support any number of clusters with
separate clock/voltage lines.
Lets rename it to 'cpufreq_dt' from 'cpufreq_cpu0'.
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Previously, the TI clock driver initialized all the clocks hierarchically
under each separate clock provider node. Now, each clock that requires
IO access will instead check their parent node to find out which IO range
to use.
This patch allows the TI clock driver to use a few new features provided
by the generic of_clk_init, and also allows registration of clock nodes
outside the clock hierarchy (for example, any external clocks.)
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Stefan Assmann <sassmann@kpanic.de>
Acked-by: Tony Lindgren <tony@atomide.com>
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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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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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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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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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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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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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This commit adds a new platform-data boolean property that enables use
of a flash-based bad block table. This can also be enabled by setting
the 'nand-on-flash-bbt' devicetree property.
If the flash BBT is not enabled, the driver falls back to use OOB
bad block markers only, as before. If the flash BBT is enabled the
kernel will keep track of bad blocks using a BBT, in addition to
the OOB markers.
As explained by Brian Norris the reasons for using a BBT are:
""
The primary reason would be that NAND datasheets specify it these days.
A better argument is that nobody guarantees that you can write a
bad block marker to a worn out block; you may just get program failures.
This has been acknowledged by several developers over the last several
years.
Additionally, you get a boot-time performance improvement if you only
have to read a few pages, instead of a page or two from every block on
the flash.
""
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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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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Just move the code over as it has no dependencies
on arch/arm/ anymore.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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OMAP INTC irqchip driver will be moved under
drivers/irqchip/ soon but we still have a dependency
with mach-omap2 when it comes to idle functions.
In order to make it easy to share those function
prototypes with OMAP PM code, we introduce this new
header.
To avoid modifying several board-files and some of
the PM-related code, we just include the new header
from common.h which was already included by all
users of IRQ-related PM code.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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By moving i2c devices to DT we can clean up
i2c_board_info and fix a problem with moving
INTC to irq domain where IRQs can be renumbered
on each boot.
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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now that we don't need to support legacy board-files,
we can completely switch over to a linear irq domain
and make use of irq_alloc_domain_generic_chips() to
allocate all generic irq chips for us.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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we don't need the ifdef if we have omap_nr_pending
telling us how many pending registers we have
on current platform. This solves a possible
problem where we could try to handle bogus
interrupts on OMAP2 and OMAP3 if using single
zImage kernel, because we would end up reading
the following pending FIQ register.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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that variable will tell us how many INTC_PENDING_IRQn
registers we have. It'll be used on a following patch
to cleanup omap_intc_handle_irq() a bit.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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we can set our global omap_nr_irqs early on
and drop the extra argument to omap_init_irq().
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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There's no need for that header to be included.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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that was just a no-op wrapper around omap_intc_handle_irq
anyway.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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now that we're calling set_handle_irq() from
init_irq(), we can safely drop all callers to
omap3_intc_handle_irq() and its definition.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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the idea is that board-files won't need to set
.handle_irq on their machine_descs, which lets
us drop a little more pointless code.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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We want .init_irq to call set_irq_handle() for
legacy platforms. Note that this code will also
be dropped once omap2/3 devices are completely
moved to DT.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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we don't need that anymore since specific
devices are passing correct compatible flags.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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so far, only am33xx has 128 lines, all other devices
have only 96.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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with this, we can use a compatible flag to figure
out how many irq lines are wired up, no need for
our TI-specific ti,intc-size binding.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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now we can safely drop those fields from our machine_desc.
While at that, also drop the now unused omap_intc_of_init()
definition.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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IRQCHIP_DECLARE macro is used to declare the same
of_device_id structure for irqchips, it's just
a helper. No functional changes.
Note that we're temporarily including irqchip.h
with its full path, until we move this driver
to drivers/irqchip/.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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this will let us drop .handle_irq and .init_irq fields
from our generic machine_descs.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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nobody uses that function outside of this file,
so we don't need to expose it.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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no functional changes, just moving code around.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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remove ifdef around omap3 INTC support. This
will make it easier to reuse code for PM.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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just to make it clearer that it can
be used on all omaps.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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omap_intc_handle_irq now had an unnecessary
base_addr argument. Let's remove it and fix
all callers.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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an almost blind conversion from readl_relaxed
to our newly introduced intc_readl().
While at that, also remove some hardcoded
register addresses.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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no functional changes.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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now we can finally remove 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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Tony Lindgren
Linus Torvalds
Rafael J. Wysocki
Viresh Kumar
Mike Turquette
Tero Kristo
Arnd Bergmann
Olof Johansson
Joe Perches
Rajendra Nayak
Ezequiel García
Felipe Balbi