We get support for three new 32-bit SoC platforms this time. The amount
of changes in arch/arm for any of them is miniscule, as all the
interesting code is in device driver subsystems (irqchip, clk, pinctrl,
...) these days. I'm listing them here, as the addition of the Kconfig
statement is the main relevant milestone for a new platform. In each
case, some drivers are are shared with existing platforms, while
other drivers are added for v4.7 as well, or come in a later release.
- The Aspeed platform is probably the most interesting one, this is
what most whitebox servers use as their baseboard management
controller. We get support for the very common ast2400 and ast2500
SoCs. The OpenBMC project focuses on this chip, and the LWN
article about their ELC 2016 presentation at
https://lwn.net/Articles/683320/ triggered the submission, but the
code comes from IBM's OpenPOWER team rather than the team at
Facebook. There are still a lot more drivers that need to get added
over time, and I hope both teams can work together on that.
- OXNAS is an old platform for Network Attached Storage devices
from Oxford Semiconductor. There are models with ARM10 (!) and
ARM11MPCore cores, but for now, we only support the original ARM9
based versions.
The product lineup was subsequently part of PLX, Avago and now the
new Broadcom Ltd. https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas
has some more information.
- V2M-MPS2 is a prototyping platform from ARM for their Cortex-M
cores and is related to the existing Realview / Versatile Express
lineup, but without MMU. We now support various NOMMU platforms,
so adding a new one is fairly straightforward.
http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/
has detailed information about the platform.
Other noteworthy updates:
- Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain Lemieux
are now maintaining the platform. This is an older ARM9 based
platform from NXP (not Freescale), but it remains in use in embedded
markets.
- Kevin Hilman is now co-maintaining the Amlogic Meson platform for both
32-bit and 64-bit ARM, and started contributing some patches.
- As is often the case, work on the OMAP platforms makes up the bulk of
the actual SoC code changes in arch/arm, but there isn't a lot of
that either.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=5oFu
-----END PGP SIGNATURE-----
Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform updates from Arnd Bergmann:
"We get support for three new 32-bit SoC platforms this time.
The amount of changes in arch/arm for any of them is miniscule, as all
the interesting code is in device driver subsystems (irqchip, clk,
pinctrl, ...) these days. I'm listing them here, as the addition of
the Kconfig statement is the main relevant milestone for a new
platform. In each case, some drivers are are shared with existing
platforms, while other drivers are added for v4.7 as well, or come in
a later release.
- The Aspeed platform is probably the most interesting one, this is
what most whitebox servers use as their baseboard management
controller. We get support for the very common ast2400 and ast2500
SoCs. The OpenBMC project focuses on this chip, and the LWN
article about their ELC 2016 presentation at
https://lwn.net/Articles/683320/
triggered the submission, but the code comes from IBM's OpenPOWER
team rather than the team at Facebook. There are still a lot more
drivers that need to get added over time, and I hope both teams can
work together on that.
- OXNAS is an old platform for Network Attached Storage devices from
Oxford Semiconductor. There are models with ARM10 (!) and
ARM11MPCore cores, but for now, we only support the original ARM9
based versions. The product lineup was subsequently part of PLX,
Avago and now the new Broadcom Ltd.
https://wiki.openwrt.org/doc/hardware/soc/soc.oxnas
has some more information.
- V2M-MPS2 is a prototyping platform from ARM for their Cortex-M
cores and is related to the existing Realview / Versatile Express
lineup, but without MMU.
We now support various NOMMU platforms, so adding a new one is
fairly straightforward.
http://infocenter.arm.com/help/topic/com.arm.doc.100112_0100_03_en/
has detailed information about the platform.
Other noteworthy updates:
- Work on LPC32xx has resumed, and Vladimir Zapolskiy and Sylvain
Lemieux are now maintaining the platform.
This is an older ARM9 based platform from NXP (not Freescale), but
it remains in use in embedded markets.
- Kevin Hilman is now co-maintaining the Amlogic Meson platform for
both 32-bit and 64-bit ARM, and started contributing some patches.
- As is often the case, work on the OMAP platforms makes up the bulk
of the actual SoC code changes in arch/arm, but there isn't a lot
of that either"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
MAINTAINERS: ARM/Amlogic: add co-maintainer, misc. updates
MAINTAINERS: add ARM/NXP LPC32XX SoC specific drivers to the section
MAINTAINERS: add new maintainers of NXP LPC32xx SoC
MAINTAINERS: move ARM/NXP LPC32xx record to ARM section
arm: Add Aspeed machine
ARM: lpc32xx: remove duplicate const on lpc32xx_auxdata_lookup
ARM: lpc32xx: remove leftovers of legacy clock source and provider drivers
ARM: lpc32xx: remove reboot header file
ARM: dove: Remove CLK_IS_ROOT
ARM: orion5x: Remove CLK_IS_ROOT
ARM: mv78xx0: Remove CLK_IS_ROOT
ARM: davinci: da850: use clk->set_parent for async3
ARM: davinci: Move clock init after ioremap.
MAINTAINERS: Update ARM Versatile Express platform entry
ARM: vexpress/mps2: introduce MPS2 platform
MAINTAINERS: add maintainer entry for ARM/OXNAS platform
ARM: Add new mach-oxnas
irqchip: versatile-fpga: add new compatible for OX810SE SoC
ARM: uniphier: correct the call order of of_node_put()
MAINTAINERS: fix stale TI DaVinci entries
...
The directory arch/arm/mach-omap2 is only selected for compilation if
CONFIG_ARCH_OMAP2PLUS is selected. CONFIG_ARCH_OMAP2PLUS itself is a
silent option and all machines selecting this option are multiplatform
devices. As a consequence checks for CONFIG_ARCH_MULTIPLATFORM as well
as CONFIG_ARCH_OMAP2PLUS within that directory are superfluous and can
be removed.
Signed-off-by: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Silicon Rev 2.0 is a minor variant of Rev 1.0. Rev 2.0 is an incremental revision
with various fixes including the following:
- Reset logic fixes
- Few asymmetric aging logic fixes
- Ethernet speed fixes
- EDMA fixes for McASP
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Currently of_machine_is_compatible is used to detect the soc which
employs string comparison operations. We already have all the required
information in the omap_revision. Hence make use of the same like
the previous OMAPs and avoid costly string comparisons.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The naming for the cpu_is macros is confusing as the CPU is separate
and within the SoC. Let's rename all the macros to soc_is, and let's
define cpu_is also for the ones still in use. Then we can just remove
the cpu_is macros once the users are fixed up.
To keep the chances of breaking anything, the changes were
generated with the following regular expressions:
s/cpu_is/soc_is/g
s/CPU/SoC/g
Then the list of existing cpu_is users was generated with:
$ $ grep -o -e 'cpu_is_.\+()' arch/arm/mach-omap2/*.[chS] | \
cut -d: -f2 | sort | uniq
And added to the end of the soc.h.
I decided to rework the earlier patches by Keerthy <j-keerthy@ti.com>
to keep changes down to minimum to avoid potential errors and stick
to just search and replace.
Signed-off-by: Tony Lindgren <tony@atomide.com>
ES2.0 is a minor variant of ES1.1. ES2.0 is an incremental revision
with various fixes including the following:
- reset logic fixes
- few assymetric aging logic fixes
- MMC clock rate fixes
- Ethernet speed fixes
- edma fixes for mcasp
NOTE: even though we use a compatible of dra742 and dra752, the usage in
the Linux kernel is more or less interchangable - we use dra752 more
often in the linux kernel compared to dra742 and 4.2-rc6
Signed-off-by: Vishal Mahaveer <vishalm@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Otherwise it will return true for cpu_is_omap34xx() which we don't
want for the clocks and hwmod. It's closer to am33xx for the clocks
and hwmod than to the omap34xx. We also want to be able to detect
814x and 816x separately as at least the clocks are different with
814x using a apll and 816x using a fapll for the source clocks.
Note that we can also remove omap3xxx_clk_init() call as it's wrong
and ti81xx are booting in device tree only mode.
Cc: Brian Hutchinson <b.hutchman@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
ES1.2 is a minor variant of ES1.1. Major changes since ES1.1 are
updating ROM for fixing the following boot modes:
- NAND boot
- UART boot
- Ethernet boot
- USB HOST/Client boot
This patch adds ID support for AM437x ES1.2 silicon.
There are no additional kernel fixes required for ES1.2 silicon.
Latest Technical Documentation can be found here:
http://www.ti.com/lsds/ti/arm/sitara_arm_cortex_a_processor/arm_cortex_a9_core/am437x_arm_cortex_a9/tech_docs.page
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add support for DRA72x device DIEID. Currently these devices are
reported as DRA75/74 family of processors.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Currently the files in /sys/devices/soc0/ show no information about
DRA7. Few userspace programs do depend on this information to make SoC
specific support. So update logic to detect the relevant information and
provide to userspace.
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
OMAP5 ES1.0 was intended as a test chip and has major register level
differences w.r.t ES2.0 revision of the chip. All register defines,
dts support has been solely added for ES2.0 version of the chip.
Further, all ES1.0 chips and platforms are supposed to have been
removed from circulation. Hence, there is no need to further retain
any resemblence of ES1.0 support in id detection code.
Remove the omap_revision handling and BUG() instead to prevent folks
who mistakenly try an older unsupported chip and report bogus errors.
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The DRA7xx is a high-performance, infotainment application device,
based on enhanced OMAP architecture integrated on a 28-nm technology.
Since DRA7 is a platform supported only using DT, the cpu detection
is based on the compatibles passed from DT blobs as suggested here
http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/187712.html
Suggested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Layout of DEV_FEATURE register (offset = 0x604) is different
between TI81xx and AM33xx device, so create separate function
which will check for features available on specific AM33xx SoC
and set the flags accordingly.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Currently omap3xxx_check_revision() detects ES1.0 and ES1.1 only,
this patch extends it by adding ES2.0 and ES2.1 versions support.
Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Signed-off-by: Tony Lindgren <tony@atomide.com>
soc_is support for AM43x family of SoC's. Only variant now is AM437x,
it is made as a subclass of AM43x.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Add support for chip id detection of AM335x PG2.1 Silicon.
Currently omap3xxx_check_revision() detects PG1.0 and PG2.0 only,
this patch extends it by adding PG2.1 Si support.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
If DEBUG_LL and earlyprintk are enabled, and omap-serial.c is compiled
as a module, the kernel boot hangs early as the clocks for serial port
are cut while earlyprintk still uses the port.
The problem is a race between the late_initcall for omap_device (which
idles devices that have no drivers) and the late_initcall in
kernel/printk.c which turns off the earlyconsole. Any printks
that happen between this omap_device late initcall and the earlyconsole
late initcall will crash when accessing the UART.
The fix is to ensure the omap_device initcall happens after the
earlyconsole initcall.
Reported-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This branch contains changes for OMAP that came in late during the release
staging, close to when the merge window opened.
It contains, among other things:
- OMAP PM fixes and some patches for audio device integration
- OMAP clock fixes related to common clock conversion
- A set of patches cleaning up WFI entry and blocking.
- A set of fixes and IP block support for PM on TI AM33xx SoCs (Beaglebone, etc)
- A set of smaller fixes and cleanups around AM33xx restart and revision
detection, as well as removal of some dead code (CONFIG_32K_TIMER_HZ)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=/vBT
-----END PGP SIGNATURE-----
Merge tag 'late-omap' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late OMAP changes from Olof Johansson:
"This branch contains changes for OMAP that came in late during the
release staging, close to when the merge window opened.
It contains, among other things:
- OMAP PM fixes and some patches for audio device integration
- OMAP clock fixes related to common clock conversion
- A set of patches cleaning up WFI entry and blocking.
- A set of fixes and IP block support for PM on TI AM33xx SoCs
(Beaglebone, etc)
- A set of smaller fixes and cleanups around AM33xx restart and
revision detection, as well as removal of some dead code
(CONFIG_32K_TIMER_HZ)"
* tag 'late-omap' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (34 commits)
ARM: omap2: include linux/errno.h in hwmod_reset
ARM: OMAP2+: fix some omap_device_build() calls that aren't compiled by default
ARM: OMAP4: hwmod data: Enable AESS hwmod device
ARM: OMAP4: hwmod data: Update AESS data with memory bank area
ARM: OMAP4+: AESS: enable internal auto-gating during initial setup
ASoC: TI AESS: add autogating-enable function, callable from architecture code
ARM: OMAP2+: hwmod: add enable_preprogram hook
ARM: OMAP4: clock data: Add missing clkdm association for dpll_usb
ARM: OMAP2+: PM: Fix the dt return condition in pm_late_init()
ARM: OMAP2: am33xx-hwmod: Fix "register offset NULL check" bug
ARM: OMAP2+: AM33xx: hwmod: add missing HWMOD_NO_IDLEST flags
ARM: OMAP: AM33xx hwmod: Add parent-child relationship for PWM subsystem
ARM: OMAP: AM33xx hwmod: Corrects PWM subsystem HWMOD entries
ARM: DTS: AM33XX: Add nodes for OCMC RAM and WKUP-M3
ARM: OMAP2+: AM33XX: Update the hardreset API
ARM: OMAP2+: AM33XX: hwmod: Update the WKUP-M3 hwmod with reset status bit
ARM: OMAP2+: AM33XX: hwmod: Fixup cpgmac0 hwmod entry
ARM: OMAP2+: AM33XX: hwmod: Update TPTC0 hwmod with the right flags
ARM: OMAP2+: AM33XX: hwmod: Register OCMC RAM hwmod
ARM: OMAP2+: AM33XX: CM/PRM: Use __ASSEMBLER__ macros in header files
...
Add support for chip id recognition of AM335x PG2.0 silicon. By default
omap3xxx_check_revision() recognizes PG1.0, which is extended by adding
PG2.0 support
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
We need to make sure that multiplatform kernels don't
run omap initcalls when booted on other SoCs.
Do this by adding wrapper macros for the initcalls that
return early if soc_is_omap() test fails. This allows
us to easily change the defines later if we have SoC
specific init sections available.
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Replaces several flags bearing the same meaning. There is no need
to set flags due to different omap types here, it can be checked
in appropriate places as well.
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
We want to remove plat/cpu.h. To do this, let's first split
it to private soc.h to mach-omap1 and mach-omap2. We have to
keep plat/cpu.h around until the remaining drivers are fixed,
so let's include the local soc.h in plat/cpu.h and for drivers
still including plat/cpu.h.
Once the drivers are fixed not to include plat/cpu.h, we
can remove the file.
This is needed for the ARM common zImage support.
[tony@atomide.com: updated to not print a warning]
Signed-off-by: Tony Lindgren <tony@atomide.com>
These can now be moved to be local headers in mach-omap2.
Note that this patch removes arch/arm/plat-omap/devices.c as it
will get removed anyways with Paul Walmsley's patch
"ARM: OMAP: split OMAP1, OMAP2+ RNG device registration".
Signed-off-by: Tony Lindgren <tony@atomide.com>
As the plat and mach includes need to disappear for single zImage work,
we need to remove plat/hardware.h.
Do this by splitting plat/hardware.h into omap1 and omap2+ specific files.
The old plat/hardware.h already has omap1 only defines, so it gets moved
to mach/hardware.h for omap1. For omap2+, we use the local soc.h
that for now just includes the related SoC headers to keep this patch more
readable.
Note that the local soc.h still includes plat/cpu.h that can be dealt
with in later patches. Let's also include plat/serial.h from common.h for
all the board-*.c files. This allows making the include files local later
on without patching these files again.
Note that only minimal changes are done in this patch for the
drivers/watchdog/omap_wdt.c driver to keep things compiling. Further
patches are needed to eventually remove cpu_is_omap usage in the drivers.
Also only minimal changes are done to sound/soc/omap/* to remove the
unneeded includes and to define OMAP44XX_MCPDM_L3_BASE locally so there's
no need to include omap44xx.h.
While at it, also sort some of the includes in the standard way.
Cc: linux-watchdog@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: Liam Girdwood <lrg@ti.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
As the interrupts should only be defined in the platform_data, and
eventually coming from device tree, there's no need to define them
in header files.
Let's remove the hardcoded references to irqs.h and fix up the includes
so we don't rely on headers included in irqs.h. Note that we're
defining OMAP_INTC_START as 0 to the interrupts. This will be needed
when we enable SPARSE_IRQ. For some drivers we need to add
#include <plat/cpu.h> for now until these drivers are fixed to
remove cpu_is_omapxxxx() usage.
While at it, sort som of the includes the standard way, and add
the trailing commas where they are missing in the related data
structures.
Note that for drivers/staging/tidspbridge we just define things
locally.
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Linus Torvalds