Moves DPAA2 DPIO driver from staging to fsl/soc
Adds multiple-pin support to QE gpio driver
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Merge tag 'soc-fsl-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux into next/drivers
Various updates to soc/fsl for 4.19
Moves DPAA2 DPIO driver from staging to fsl/soc
Adds multiple-pin support to QE gpio driver
* tag 'soc-fsl-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/leo/linux:
soc: fsl: cleanup Kconfig menu
soc: fsl: dpio: Convert DPIO documentation to .rst
staging: fsl-mc: Remove remaining files
staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
staging: fsl-dpaa2: eth: move generic FD defines to DPIO
soc: fsl: qe: gpio: Add qe_gpio_set_multiple
Signed-off-by: Olof Johansson <olof@lixom.net>
Move the NXP DPIO (Datapath I/O Driver) out of the
drivers/staging directory and into the drivers/soc/fsl directory.
The DPIO driver enables access to Queue and Buffer Manager (QBMAN)
hardware on NXP DPAA2 devices. This is a prerequisite to moving the
DPAA2 Ethernet driver out of staging.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
Platform drivers need make a lot of resource state requests at the same
time, say, at the start or end of an usecase. It can be quite
inefficient to send each request separately. Instead they can give the
RPMH library a batch of requests to be sent and wait on the whole
transaction to be complete.
rpmh_write_batch() is a blocking call that can be used to send multiple
RPMH command sets. Each RPMH command set is set asynchronously and the
API blocks until all the command sets are complete and receive their
tx_done callbacks.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Platform drivers that want to send a request but do not want to block
until the RPMH request completes have now a new API -
rpmh_write_async().
The API allocates memory and send the requests and returns the control
back to the platform driver. The tx_done callback from the controller is
handled in the context of the controller's thread and frees the
allocated memory. This API allows RPMH requests from atomic contexts as
well.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Active state requests are sent immediately to the RSC controller, while
sleep and wake state requests are cached in this driver to avoid taxing
the RSC controller repeatedly. The cached values will be sent to the
controller when the rpmh_flush() is called.
Generally, flushing is a system PM activity and may be called from the
system PM drivers when the system is entering suspend or deeper sleep
modes during cpuidle.
Also allow invalidating the cached requests, so they may be re-populated
again.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
[rplsssn: remove unneeded semicolon, address line over 80chars error]
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Sending RPMH requests and waiting for response from the controller
through a callback is common functionality across all platform drivers.
To simplify drivers, add a library functions to create RPMH client and
send resource state requests.
rpmh_write() is a synchronous blocking call that can be used to send
active state requests.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Add controller driver for QCOM SoCs that have hardware based shared
resource management. The hardware IP known as RSC (Resource State
Coordinator) houses multiple Direct Resource Voter (DRV) for different
execution levels. A DRV is a unique voter on the state of a shared
resource. A Trigger Control Set (TCS) is a bunch of slots that can house
multiple resource state requests, that when triggered will issue those
requests through an internal bus to the Resource Power Manager Hardened
(RPMH) blocks. These hardware blocks are capable of adjusting clocks,
voltages, etc. The resource state request from a DRV are aggregated
along with state requests from other processors in the SoC and the
aggregate value is applied on the resource.
Some important aspects of the RPMH communication -
- Requests are <addr, value> with some header information
- Multiple requests (upto 16) may be sent through a TCS, at a time
- Requests in a TCS are sent in sequence
- Requests may be fire-n-forget or completion (response expected)
- Multiple TCS from the same DRV may be triggered simultaneously
- Cannot send a request if another request for the same addr is in
progress from the same DRV
- When all the requests from a TCS are complete, an IRQ is raised
- The IRQ handler needs to clear the TCS before it is available for
reuse
- TCS configuration is specific to a DRV
- Platform drivers may use DRV from different RSCs to make requests
Resource state requests made when CPUs are active are called 'active'
state requests. Requests made when all the CPUs are powered down (idle
state) are called 'sleep' state requests. They are matched by a
corresponding 'wake' state requests which puts the resources back in to
previously requested active state before resuming any CPU. TCSes are
dedicated for each type of requests. Active mode TCSes (AMC) are used to
send requests immediately to the resource, while control TCS are used to
provide specific information to the controller. Sleep and Wake TCS send
sleep and wake requests, after and before the system halt respectively.
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Recent Raspberry Pi firmware provides a mailbox property to detect
under-voltage conditions. Here is the current definition.
The u32 value returned by the firmware is divided into 2 parts:
- lower 16-bits are the live value
- upper 16-bits are the history or sticky value
Bits:
0: undervoltage
1: arm frequency capped
2: currently throttled
16: undervoltage has occurred
17: arm frequency capped has occurred
18: throttling has occurred
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
This is a branch with a few merge requests that either came in late, or
took a while longer for us to review and merge than usual and thus cut
it a bit close to the merge window. We stage them in a separate branch
and if things look good, we still send them up -- and that's the case
here.
This is mostly DT additions for Renesas platforms, adding IP block
descriptions for existing and new SoCs.
There are also some driver updates for Qualcomm platforms for SMEM/QMI
and GENI, which is their generalized serial protocol interface.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late updates from Olof Johansson:
"This is a branch with a few merge requests that either came in late,
or took a while longer for us to review and merge than usual and thus
cut it a bit close to the merge window. We stage them in a separate
branch and if things look good, we still send them up -- and that's
the case here.
This is mostly DT additions for Renesas platforms, adding IP block
descriptions for existing and new SoCs.
There are also some driver updates for Qualcomm platforms for SMEM/QMI
and GENI, which is their generalized serial protocol interface"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (186 commits)
soc: qcom: smem: introduce qcom_smem_virt_to_phys()
soc: qcom: qmi: fix a buffer sizing bug
MAINTAINERS: Update pattern for qcom_scm
soc: Unconditionally include qcom Makefile
soc: qcom: smem: check sooner in qcom_smem_set_global_partition()
soc: qcom: smem: fix qcom_smem_set_global_partition()
soc: qcom: smem: fix off-by-one error in qcom_smem_alloc_private()
soc: qcom: smem: byte swap values properly
soc: qcom: smem: return proper type for cached entry functions
soc: qcom: smem: fix first cache entry calculation
soc: qcom: cmd-db: Make endian-agnostic
drivers: qcom: add command DB driver
arm64: dts: renesas: salvator-common: Add ADV7482 support
ARM: dts: r8a7740: Add CEU1
ARM: dts: r8a7740: Add CEU0
arm64: dts: renesas: salvator-common: enable VIN
arm64: dts: renesas: r8a77970: add VIN and CSI-2 nodes
arm64: dts: renesas: r8a77965: add VIN and CSI-2 nodes
arm64: dts: renesas: r8a7796: add VIN and CSI-2 nodes
arm64: dts: renesas: r8a7795-es1: add CSI-2 node
...
The tegra_cpuidle_pcie_irqs_in_use() function is stubbed out for non-ARM
builds, but now we can compile-test the Tegra pci driver on non-Tegra
ARM platforms as well, which results in a new link error:
drivers/pci/host/pci-tegra.o: In function `tegra_pcie_map_irq':
pci-tegra.c:(.text+0x288): undefined reference to `tegra_cpuidle_pcie_irqs_in_use'
drivers/pci/host/pci-tegra.o: In function `tegra_msi_map':
pci-tegra.c:(.text+0xba0): undefined reference to `tegra_cpuidle_pcie_irqs_in_use'
This adapts the #ifdef statement to match the exact condition under which
the function can be called.
Fixes: 51bc085d64 ("PCI: Improve host drivers compile test coverage")
Cc: Rob Herring <robh@kernel.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Command DB is a simple database in the shared memory of QCOM SoCs, that
provides information regarding shared resources. Some shared resources
in the SoC have properties that are probed dynamically at boot by the
remote processor. The information pertaining to the SoC and the platform
are made available in the shared memory. Drivers can query this
information using predefined strings.
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This contains some cleanup of the memory controller driver as well as
unification work to share more code between Tegra20 and later SoC
generations. Also included are an implementation for the hot resets
functionality by the memory controller which is required to properly
reset busy hardware.
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Merge tag 'tegra-for-4.18-memory-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
memory: tegra: Changes for v4.18-rc1
This contains some cleanup of the memory controller driver as well as
unification work to share more code between Tegra20 and later SoC
generations. Also included are an implementation for the hot resets
functionality by the memory controller which is required to properly
reset busy hardware.
* tag 'tegra-for-4.18-memory-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: memory: tegra: Remove Tegra114 SATA and AFI reset definitions
memory: tegra: Remove Tegra114 SATA and AFI reset definitions
memory: tegra: Register SMMU after MC driver became ready
memory: tegra: Add Tegra210 memory controller hot resets
memory: tegra: Add Tegra124 memory controller hot resets
memory: tegra: Add Tegra114 memory controller hot resets
memory: tegra: Add Tegra30 memory controller hot resets
memory: tegra: Add Tegra20 memory controller hot resets
memory: tegra: Introduce memory client hot reset
memory: tegra: Squash tegra20-mc into common tegra-mc driver
memory: tegra: Remove unused headers inclusions
memory: tegra: Apply interrupts mask per SoC
memory: tegra: Setup interrupts mask before requesting IRQ
memory: tegra: Do not handle spurious interrupts
dt-bindings: memory: tegra: Add hot resets definitions
Signed-off-by: Olof Johansson <olof@lixom.net>
In order to reset busy HW properly, memory controller needs to be
involved, otherwise it is possible to get corrupted memory or hang machine
if HW was reset during DMA. Introduce memory client 'hot reset' that will
be used for resetting of busy HW.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra30+ has some minor differences in registers / bits layout compared
to Tegra20. Let's squash Tegra20 driver into the common tegra-mc driver
in a preparation for the upcoming MC hot reset controls implementation,
avoiding code duplication.
Note that this currently doesn't report the value of MC_GART_ERROR_REQ
because it is located within the GART register area and cannot be safely
accessed from the MC driver (this happens to work only by accident). The
proper solution is to integrate the GART driver with the MC driver, much
like is done for the Tegra SMMU, but that is an invasive change and will
be part of a separate patch series.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Currently we are enabling handling of interrupts specific to Tegra124+
which happen to overlap with previous generations. Let's specify
interrupts mask per SoC generation for consistency and in a preparation
of squashing of Tegra20 driver into the common one that will enable
handling of GART faults which may be undesirable by newer generations.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
If CONFIG_RASPBERRYPI_FIRMWARE=n:
drivers/gpio/gpio-raspberrypi-exp.c: In function ‘rpi_exp_gpio_get_polarity’:
drivers/gpio/gpio-raspberrypi-exp.c:71: warning: ‘get.polarity’ is used uninitialized in this function
drivers/gpio/gpio-raspberrypi-exp.c: In function ‘rpi_exp_gpio_get_direction’:
drivers/gpio/gpio-raspberrypi-exp.c:150: warning: ‘get.direction’ is used uninitialized in this function
The dummy firmware interface functions return 0, which means success,
causing subsequent code to make use of the never initialized output
parameter.
Fix this by making the dummy functions return an error code (-ENOSYS)
instead.
Note that this assumes the firmware always fills in the requested data
in the CONFIG_RASPBERRYPI_FIRMWARE=y case.
Fixes: d45f1a563b ("staging: vc04_services: fix up rpi firmware functions")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
The main addition this time around is the new ARM "SCMI" framework,
which is the latest in a series of standards coming from ARM to do power
management in a platform independent way. This has been through many
review cycles, and it relies on a rather interesting way of using the
mailbox subsystem, but in the end I agreed that Sudeep's version was
the best we could do after all.
Other changes include:
- the ARM CCN driver is moved out of drivers/bus into drivers/perf,
which makes more sense. Similarly, the performance monitoring
portion of the CCI driver are moved the same way and cleaned up
a little more.
- a series of updates to the SCPI framework
- support for the Mediatek mt7623a SoC in drivers/soc
- support for additional NVIDIA Tegra hardware in drivers/soc
- a new reset driver for Socionext Uniphier
- lesser bug fixes in drivers/soc, drivers/tee, drivers/memory, and
drivers/firmware and drivers/reset across platforms
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"The main addition this time around is the new ARM "SCMI" framework,
which is the latest in a series of standards coming from ARM to do
power management in a platform independent way.
This has been through many review cycles, and it relies on a rather
interesting way of using the mailbox subsystem, but in the end I
agreed that Sudeep's version was the best we could do after all.
Other changes include:
- the ARM CCN driver is moved out of drivers/bus into drivers/perf,
which makes more sense. Similarly, the performance monitoring
portion of the CCI driver are moved the same way and cleaned up a
little more.
- a series of updates to the SCPI framework
- support for the Mediatek mt7623a SoC in drivers/soc
- support for additional NVIDIA Tegra hardware in drivers/soc
- a new reset driver for Socionext Uniphier
- lesser bug fixes in drivers/soc, drivers/tee, drivers/memory, and
drivers/firmware and drivers/reset across platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (87 commits)
reset: uniphier: add ethernet reset control support for PXs3
reset: stm32mp1: Enable stm32mp1 reset driver
dt-bindings: reset: add STM32MP1 resets
reset: uniphier: add Pro4/Pro5/PXs2 audio systems reset control
reset: imx7: add 'depends on HAS_IOMEM' to fix unmet dependency
reset: modify the way reset lookup works for board files
reset: add support for non-DT systems
clk: scmi: use devm_of_clk_add_hw_provider() API and drop scmi_clocks_remove
firmware: arm_scmi: prevent accessing rate_discrete uninitialized
hwmon: (scmi) return -EINVAL when sensor information is unavailable
amlogic: meson-gx-socinfo: Update soc ids
soc/tegra: pmc: Use the new reset APIs to manage reset controllers
soc: mediatek: update power domain data of MT2712
dt-bindings: soc: update MT2712 power dt-bindings
cpufreq: scmi: add thermal dependency
soc: mediatek: fix the mistaken pointer accessed when subdomains are added
soc: mediatek: add SCPSYS power domain driver for MediaTek MT7623A SoC
soc: mediatek: avoid hardcoded value with bus_prot_mask
dt-bindings: soc: add header files required for MT7623A SCPSYS dt-binding
dt-bindings: soc: add SCPSYS binding for MT7623 and MT7623A SoC
...
These changes are rather small, with just a fix for a return value check
and some preparatory work for Tegra194 BPMP support.
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Merge tag 'tegra-for-4.17-firmware' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Pull "firmware: Changes for v4.17-rc1" from Thierry Reding:
These changes are rather small, with just a fix for a return value check
and some preparatory work for Tegra194 BPMP support.
* tag 'tegra-for-4.17-firmware' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: adjust tested variable
firmware: tegra: Simplify channel management
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Merge tag 'v4.16-rc5' into devel
Linux 4.16-rc5 merged into the GPIO devel branch to resolve
a nasty conflict between fixes and devel in the RCAR driver.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The Tegra194 BPMP only implements 5 channels (4 to BPMP, 1 to CCPLEX),
and they are not placed contiguously in memory. The current channel
management in the BPMP driver does not support this.
Simplify and refactor the channel management such that only one atomic
transmit channel and one receive channel are supported, and channels
are not required to be placed contiguously in memory. The same
configuration also works on T186 so we end up with less code.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
- MCIP aka ARconnect fixes for SMP builds [Euginey]
- Preventive fix for SLC (L2 cache) flushing [Euginey]
- Kconfig default fix [Ulf Magnusson]
- trailing semicolon fixes [Luis de Bethencourt]
- other assorted minor fixes
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Merge tag 'arc-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- MCIP aka ARconnect fixes for SMP builds [Euginey]
- preventive fix for SLC (L2 cache) flushing [Euginey]
- Kconfig default fix [Ulf Magnusson]
- trailing semicolon fixes [Luis de Bethencourt]
- other assorted minor fixes
* tag 'arc-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: setup cpu possible mask according to possible-cpus dts property
ARC: mcip: update MCIP debug mask when the new cpu came online
ARC: mcip: halt GFRC counter when ARC cores halt
ARCv2: boot log: fix HS48 release number
arc: dts: use 'atmel' as manufacturer for at24 in axs10x_mb
ARC: Fix malformed ARC_EMUL_UNALIGNED default
ARC: boot log: Fix trailing semicolon
ARC: dw2 unwind: Fix trailing semicolon
ARC: Enable fatal signals on boot for dev platforms
ARCv2: Don't pretend we may set L-bit in STATUS32 with kflag instruction
ARCv2: cache: fix slc_entire_op: flush only instead of flush-n-inv
As of today we use hardcoded MCIP debug mask, so if we launch
kernel via debugger and kick fever cores than HW has all cpus
hang at the momemt of setup MCIP debug mask.
So update MCIP debug mask when the new cpu came online, instead of
use hardcoded MCIP debug mask.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
In SMP systems, GFRC is used for clocksource. However by default the
counter keeps running even when core is halted (say when debugging via a
JTAG debugger). This confuses Linux timekeeping and triggers flase RCU stall
splat such as below:
| [ARCLinux]# while true; do ./shm_open_23-1.run-test ; done
| Running with 1000 processes for 1000 objects
| hrtimer: interrupt took 485060 ns
|
| create_cnt: 1000
| Running with 1000 processes for 1000 objects
| [ARCLinux]# INFO: rcu_preempt self-detected stall on CPU
| 2-...: (1 GPs behind) idle=a01/1/0 softirq=135770/135773 fqs=0
| INFO: rcu_preempt detected stalls on CPUs/tasks:
| 0-...: (1 GPs behind) idle=71e/0/0 softirq=135264/135264 fqs=0
| 2-...: (1 GPs behind) idle=a01/1/0 softirq=135770/135773 fqs=0
| 3-...: (1 GPs behind) idle=4e0/0/0 softirq=134304/134304 fqs=0
| (detected by 1, t=13648 jiffies, g=31493, c=31492, q=1)
Starting from ARC HS v3.0 it's possible to tie GFRC to state of up-to 4
ARC cores with help of GFRC's CORE register where we set a mask for
cores which state we need to rely on.
We update cpu mask every time new cpu came online instead of using
hardcoded one or using mask generated from "possible_cpus" as we
want it set correctly even if we run kernel on HW which has fewer cores
than expected (or we launch kernel via debugger and kick fever cores
than HW has)
Note that GFRC halts when all cores have halted and thus relies on
programming of Inter-Core-dEbug register to halt all cores when one
halts.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: rewrote changelog]
Add latest firmware property tags from the latest Raspberry Pi downstream
kernel. This is needed for the GPIO tags, so we can control the GPIO
multiplexor lines.
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
A number of new drivers get added this time, along with many low-priority
bugfixes. The most interesting changes by subsystem are:
bus drivers:
- Updates to the Broadcom bus interface driver to support newer SoC types
- The TI OMAP sysc driver now supports updated DT bindings
memory controllers:
- A new driver for Tegra186 gets added
- A new driver for the ti-emif sram, to allow relocating
suspend/resume handlers there
SoC specific:
- A new driver for Qualcomm QMI, the interface to the modem on MSM SoCs
- A new driver for power domains on the actions S700 SoC
- A driver for the Xilinx Zynq VCU logicoreIP
reset controllers:
- A new driver for Amlogic Meson-AGX
- various bug fixes
tee subsystem:
- A new user interface got added to enable asynchronous communication
with the TEE supplicant.
- A new method of using user space memory for communication with
the TEE is added
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"A number of new drivers get added this time, along with many
low-priority bugfixes. The most interesting changes by subsystem are:
bus drivers:
- Updates to the Broadcom bus interface driver to support newer SoC
types
- The TI OMAP sysc driver now supports updated DT bindings
memory controllers:
- A new driver for Tegra186 gets added
- A new driver for the ti-emif sram, to allow relocating
suspend/resume handlers there
SoC specific:
- A new driver for Qualcomm QMI, the interface to the modem on MSM
SoCs
- A new driver for power domains on the actions S700 SoC
- A driver for the Xilinx Zynq VCU logicoreIP
reset controllers:
- A new driver for Amlogic Meson-AGX
- various bug fixes
tee subsystem:
- A new user interface got added to enable asynchronous communication
with the TEE supplicant.
- A new method of using user space memory for communication with the
TEE is added"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (84 commits)
of: platform: fix OF node refcount leak
soc: fsl: guts: Add a NULL check for devm_kasprintf()
bus: ti-sysc: Fix smartreflex sysc mask
psci: add CPU_IDLE dependency
soc: xilinx: Fix Kconfig alignment
soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv
soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu
soc: bcm: brcmstb: Be multi-platform compatible
soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms
Revert "soc: brcmstb: Only register SoC device on STB platforms"
bus: omap: add MODULE_LICENSE tags
soc: brcmstb: Only register SoC device on STB platforms
tee: shm: Potential NULL dereference calling tee_shm_register()
soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver
dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver
soc: xilinx: Create folder structure for soc specific drivers
of: platform: populate /firmware/ node from of_platform_default_populate_init()
soc: samsung: Add SPDX license identifiers
soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()
tee: shm: don't put_page on null shm->pages
...
Create SMMU display groups for Tegra30, Tegra114, Tegra124 and Tegra210.
This allows the display controllers on these devices to share the same
IOMMU domain using the standard IOMMU group mechanism.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Move Tegra186 support to the consolidated PMC driver to reduce some of
the duplication and also gain I/O pad functionality on the new SoC as a
side-effect.
Signed-off-by: Thierry Reding <treding@nvidia.com>
large change that introduces runtime PM support to the clk framework. Now we
properly call runtime PM operations on the device providing a clk when the clk
is in use. This helps on SoCs where the clks provided by a device need
something to be powered on before using the clks, like power domains or
regulators. It also helps power those things down when clks aren't in use. The
other core change is a devm API addition for clk providers so we can get rid of
a bunch of clk driver remove functions that are just doing
of_clk_del_provider().
Outside of the core, we have the usual addition of clk drivers and smattering
of non-critical fixes to existing drivers. The biggest diff is support for
Mediatek MT2712 and MT7622 SoCs, but those patches really just add a bunch
of data.
By the way, we're trying something new here where we build the tree up with
topic branches. We plan to work this into our workflow so that we don't step
on each other's toes, and so the fixes branch can be merged on an as-needed
basis.
Core:
- Runtime PM support for clk providers
- devm API for of_clk_add_hw_provider()
New Drivers:
- Mediatek MT2712 and MT7622
- Renesas R-Car V3M SoC
Updates:
- Runtime PM support for Samsung exynos5433/exynos4412 providers
- Removal of clkdev aliases on Samsung SoCs
- Convert clk-gpio to use gpio descriptors
- Various driver cleanups to match kernel coding style
- Amlogic Video Processing Unit VPU and VAPB clks
- Sigma-delta modulation for Allwinner audio PLLs
- Allwinner A83t Display clks
- Support for the second display unit clock on Renesas RZ/G1E
- Suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
- New clock ids for Rockchip rk3188 and rk3368 SoCs
- Various 'const' markings on clk_ops structures
- RPM clk support on Qualcomm MSM8996/MSM8660 SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"We have two changes to the core framework this time around.
The first being a large change that introduces runtime PM support to
the clk framework. Now we properly call runtime PM operations on the
device providing a clk when the clk is in use. This helps on SoCs
where the clks provided by a device need something to be powered on
before using the clks, like power domains or regulators. It also helps
power those things down when clks aren't in use.
The other core change is a devm API addition for clk providers so we
can get rid of a bunch of clk driver remove functions that are just
doing of_clk_del_provider().
Outside of the core, we have the usual addition of clk drivers and
smattering of non-critical fixes to existing drivers. The biggest diff
is support for Mediatek MT2712 and MT7622 SoCs, but those patches
really just add a bunch of data.
By the way, we're trying something new here where we build the tree up
with topic branches. We plan to work this into our workflow so that we
don't step on each other's toes, and so the fixes branch can be merged
on an as-needed basis.
Summary:
Core:
- runtime PM support for clk providers
- devm API for of_clk_add_hw_provider()
New Drivers:
- Mediatek MT2712 and MT7622
- Renesas R-Car V3M SoC
Updates:
- runtime PM support for Samsung exynos5433/exynos4412 providers
- removal of clkdev aliases on Samsung SoCs
- convert clk-gpio to use gpio descriptors
- various driver cleanups to match kernel coding style
- Amlogic Video Processing Unit VPU and VAPB clks
- sigma-delta modulation for Allwinner audio PLLs
- Allwinner A83t Display clks
- support for the second display unit clock on Renesas RZ/G1E
- suspend/resume support for Renesas R-Car Gen3 CPG/MSSR
- new clock ids for Rockchip rk3188 and rk3368 SoCs
- various 'const' markings on clk_ops structures
- RPM clk support on Qualcomm MSM8996/MSM8660 SoCs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (137 commits)
clk: stm32h7: fix test of clock config
clk: pxa: fix building on older compilers
clk: sunxi-ng: a83t: Fix i2c buses bits
clk: ti: dra7-atl-clock: fix child-node lookups
clk: qcom: common: fix legacy board-clock registration
clk: uniphier: fix DAPLL2 clock rate of Pro5
clk: uniphier: fix parent of miodmac clock data
clk: hi3798cv200: correct parent mux clock for 'clk_sdio0_ciu'
clk: hisilicon: Delete an error message for a failed memory allocation in hisi_register_clkgate_sep()
clk: hi3660: fix incorrect uart3 clock freqency
clk: kona-setup: Delete error messages for failed memory allocations
ARC: clk: fix spelling mistake: "configurarion" -> "configuration"
clk: cdce925: remove redundant check for non-null parent_name
clk: versatile: Improve sizeof() usage
clk: versatile: Delete error messages for failed memory allocations
clk: ux500: Improve sizeof() usage
clk: ux500: Delete error messages for failed memory allocations
clk: spear: Delete error messages for failed memory allocations
clk: ti: Delete error messages for failed memory allocations
clk: mmp: Adjust checks for NULL pointers
...
By default, it is assumed that the UTMI clock is generated from a 12 MHz
reference clock (MAINCK). If it's not the case, the FREQ field of the
SFR_UTMICKTRIM has to be updated to generate the UTMI clock in the
proper way.
The UTMI clock has a fixed rate of 480 MHz. In fact, there is no
multiplier we can configure. The multiplier is managed internally,
depending on the reference clock frequency, to achieve the target of
480 MHz.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Ingo van Lil <inguin@gmx.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tegra power management firmware running on the co-processor (BPMP)
implements a simple pseudo file system akin to debugfs. The file
system can be used for debugging purposes to examine and change the
status of selected resources controlled by the firmware (such as
clocks, resets, voltages, powergates, ...).
Add support to "mirror" the firmware's file system to debugfs. At
boot, query firmware for a list of all possible files and create
corresponding debugfs entries. Read/write of individual files is
implemented by sending a Message ReQuest (MRQ) that passes the full
file path name and data to firmware via DRAM.
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add static inline stubs to bpmp.h when CONFIG_BPMP is not enabled.
This allows building BPMP-related drivers with COMPILE_TEST.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Expose and export the tegra_bpmp_mrq_return() function for use by
drivers outside the core BPMP driver. This function is used to reply to
messages originating from the BPMP, which is required in the thermal
driver.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Response messages from Tegra BPMP firmware contain an error return code
as the first word of payload. The error code is used to indicate
incorrectly formatted request message or use of non-existing resource
(clk, reset, powergate) identifier. Current implementation of
tegra_bpmp_transfer() ignores this code and does not pass it to caller.
Fix this by adding an extra struct member to tegra_bpmp_message and
populate that with return code.
Signed-off-by: Timo Alho <talho@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This branch contains platform-related driver updates for ARM and ARM64.
Among them:
- Reset driver updates:
+ New API for dealing with arrays of resets
+ Make unimplemented {de,}assert return success on shared resets
+ MSDKv1 driver
+ Removal of obsolete Gemini reset driver
+ Misc updates for sunxi and Uniphier
- SoC drivers:
+ Platform SoC driver registration on Tegra
+ Shuffle of Qualcomm drivers into a submenu
+ Allwinner A64 support for SRAM
+ Renesas R-Car R3 support
+ Power domains for Rockchip RK3366
- Misc updates and smaller fixes for TEE and memory driver subsystems
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"This branch contains platform-related driver updates for ARM and ARM64.
Among them:
- Reset driver updates:
+ New API for dealing with arrays of resets
+ Make unimplemented {de,}assert return success on shared resets
+ MSDKv1 driver
+ Removal of obsolete Gemini reset driver
+ Misc updates for sunxi and Uniphier
- SoC drivers:
+ Platform SoC driver registration on Tegra
+ Shuffle of Qualcomm drivers into a submenu
+ Allwinner A64 support for SRAM
+ Renesas R-Car R3 support
+ Power domains for Rockchip RK3366
- Misc updates and smaller fixes for TEE and memory driver
subsystems"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
firmware: arm_scpi: fix endianness of dev_id in struct dev_pstate_set
soc/tegra: fuse: Add missing semi-colon
soc/tegra: Restrict SoC device registration to Tegra
drivers: soc: sunxi: add support for A64 and its SRAM C
drivers: soc: sunxi: add support for remapping func value to reg value
drivers: soc: sunxi: fix error processing on base address when claiming
dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C
bus: sunxi-rsb: Enable by default for ARM64
soc/tegra: Register SoC device
firmware: tegra: set drvdata earlier
memory: Convert to using %pOF instead of full_name
soc: Convert to using %pOF instead of full_name
bus: Convert to using %pOF instead of full_name
firmware: Convert to using %pOF instead of full_name
soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC
soc: mediatek: add header files required for MT7622 SCPSYS dt-binding
soc: mediatek: reduce code duplication of scpsys_probe across all SoCs
dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC
reset: uniphier: add analog amplifiers reset control
reset: uniphier: add video input subsystem reset control
...
The M4U IP blocks in mt2712 is MTK's generation2 M4U which use the
ARM Short-descriptor like mt8173, and most of the HW registers are
the same.
The difference is that there are 2 M4U HWs in mt2712 while there's
only one in mt8173. The purpose of 2 M4U HWs is for balance the
bandwidth.
Normally if there are 2 M4U HWs, there should be 2 iommu domains,
each M4U has a iommu domain.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Move this code from arch/arm/mach-tegra and make it common among 32-bit
and 64-bit Tegra SoCs. This is slightly complicated by the fact that on
32-bit Tegra, the SoC device is used as the parent for all devices that
are instantiated from device tree.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Pull networking updates from David Miller:
"Reasonably busy this cycle, but perhaps not as busy as in the 4.12
merge window:
1) Several optimizations for UDP processing under high load from
Paolo Abeni.
2) Support pacing internally in TCP when using the sch_fq packet
scheduler for this is not practical. From Eric Dumazet.
3) Support mutliple filter chains per qdisc, from Jiri Pirko.
4) Move to 1ms TCP timestamp clock, from Eric Dumazet.
5) Add batch dequeueing to vhost_net, from Jason Wang.
6) Flesh out more completely SCTP checksum offload support, from
Davide Caratti.
7) More plumbing of extended netlink ACKs, from David Ahern, Pablo
Neira Ayuso, and Matthias Schiffer.
8) Add devlink support to nfp driver, from Simon Horman.
9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa
Prabhu.
10) Add stack depth tracking to BPF verifier and use this information
in the various eBPF JITs. From Alexei Starovoitov.
11) Support XDP on qed device VFs, from Yuval Mintz.
12) Introduce BPF PROG ID for better introspection of installed BPF
programs. From Martin KaFai Lau.
13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann.
14) For loads, allow narrower accesses in bpf verifier checking, from
Yonghong Song.
15) Support MIPS in the BPF selftests and samples infrastructure, the
MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David
Daney.
16) Support kernel based TLS, from Dave Watson and others.
17) Remove completely DST garbage collection, from Wei Wang.
18) Allow installing TCP MD5 rules using prefixes, from Ivan
Delalande.
19) Add XDP support to Intel i40e driver, from Björn Töpel
20) Add support for TC flower offload in nfp driver, from Simon
Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub
Kicinski, and Bert van Leeuwen.
21) IPSEC offloading support in mlx5, from Ilan Tayari.
22) Add HW PTP support to macb driver, from Rafal Ozieblo.
23) Networking refcount_t conversions, From Elena Reshetova.
24) Add sock_ops support to BPF, from Lawrence Brako. This is useful
for tuning the TCP sockopt settings of a group of applications,
currently via CGROUPs"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits)
net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap
dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap
cxgb4: Support for get_ts_info ethtool method
cxgb4: Add PTP Hardware Clock (PHC) support
cxgb4: time stamping interface for PTP
nfp: default to chained metadata prepend format
nfp: remove legacy MAC address lookup
nfp: improve order of interfaces in breakout mode
net: macb: remove extraneous return when MACB_EXT_DESC is defined
bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case
bpf: fix return in load_bpf_file
mpls: fix rtm policy in mpls_getroute
net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t
net, ax25: convert ax25_route.refcount from atomic_t to refcount_t
net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t
net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t
net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t
...
The BPMP firmware, found on Tegra186 and later, provides an ABI that can
be used to enable and disable power to several power partitions in Tegra
SoCs. The ABI allows for enumeration of the available power partitions,
so the driver can be reused on future generations, provided the BPMP ABI
remains stable.
Based on work by Stefan Kristiansson <stefank@nvidia.com> and Mikko
Perttunen <mperttunen@nvidia.com>.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Update the BPMP ABI header to a more recent version. The new version
adds support for a new powergating ABI as well as access to the ring
buffer console, which allows debug messages to be output to the BPMP
debug console.
Some of the previously undocumented fields have been documented and
missing bitmasks have been added. Furthermore the MRQ_RESET request
now has a sub-command that allows to determine the maximum ID which
in turn allows the resets to be enumerated, thereby allowing drivers
to become agnostic of the Tegra generation.
Signed-off-by: Thierry Reding <treding@nvidia.com>
This adds support for hdlc-bus mode to the fsl_ucc_hdlc driver. This can
be enabled with the "fsl,hdlc-bus" property in the DTS node of the
corresponding ucc.
This aligns the configuration of the UPSMR and GUMR registers to what is
done in our ucc_hdlc driver (that only support hdlc-bus mode) and with
the QuickEngine's documentation for hdlc-bus mode.
GUMR/SYNL is set to AUTO for the busmode as in this case the CD signal
is ignored. The brkpt_support is enabled to set the HBM1 bit in the
CMXUCR register to configure an open-drain connected HDLC bus.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Cc: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add the bitmask for the two bit SYNL register according to the QUICK
Engine Reference Manual.
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Cc: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Highlights include:
- rework the Linux page table geometry to lower memory usage on 64-bit Book3S
(IBM chips) using the Hash MMU.
- support for a new device tree binding for discovering CPU features on future
firmwares.
- Freescale updates from Scott: "Includes a fix for a powerpc/next mm regression
on 64e, a fix for a kernel hang on 64e when using a debugger inside a
relocated kernel, a qman fix, and misc qe improvements."
Thanks to:
Christophe Leroy, Gavin Shan, Horia Geantă, LiuHailong, Nicholas Piggin, Roy
Pledge, Scott Wood, Valentin Longchamp.
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Merge tag 'powerpc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull more powerpc updates from Michael Ellerman:
"The change to the Linux page table geometry was delayed for more
testing with 16G pages, and there's the new CPU features stuff which
just needed one more polish before going in. Plus a few changes from
Scott which came in a bit late. And then various fixes, mostly minor.
Summary highlights:
- rework the Linux page table geometry to lower memory usage on
64-bit Book3S (IBM chips) using the Hash MMU.
- support for a new device tree binding for discovering CPU features
on future firmwares.
- Freescale updates from Scott:
"Includes a fix for a powerpc/next mm regression on 64e, a fix for
a kernel hang on 64e when using a debugger inside a relocated
kernel, a qman fix, and misc qe improvements."
Thanks to: Christophe Leroy, Gavin Shan, Horia Geantă, LiuHailong,
Nicholas Piggin, Roy Pledge, Scott Wood, Valentin Longchamp"
* tag 'powerpc-4.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Support new device tree binding for discovering CPU features
powerpc: Don't print cpu_spec->cpu_name if it's NULL
of/fdt: introduce of_scan_flat_dt_subnodes and of_get_flat_dt_phandle
powerpc/64s: Fix unnecessary machine check handler relocation branch
powerpc/mm/book3s/64: Rework page table geometry for lower memory usage
powerpc: Fix distclean with Makefile.postlink
powerpc/64e: Don't place the stack beyond TASK_SIZE
powerpc/powernv: Block PCI config access on BCM5718 during EEH recovery
powerpc/8xx: Adding support of IRQ in MPC8xx GPIO
soc/fsl/qbman: Disable IRQs for deferred QBMan work
soc/fsl/qe: add EXPORT_SYMBOL for the 2 qe_tdm functions
soc/fsl/qe: only apply QE_General4 workaround on affected SoCs
soc/fsl/qe: round brg_freq to 1kHz granularity
soc/fsl/qe: get rid of immrbar_virt_to_phys()
net: ethernet: ucc_geth: fix MEM_PART_MURAM mode
powerpc/64e: Fix hang when debugging programs with relocated kernel
Driver updates for ARM SoCs.
* Reset subsystem, merged through arm-soc by tradition:
- Make bool drivers explicitly non-modular
- New support for i.MX7 and Arria10 reset controllers
* PATA driver for Palmchip BK371 (acked by Tejun)
* Power domain drivers for i.MX (GPC, GPCv2)
- Moved out of mach-imx for GPC
- Bunch of tweaks, fixes, etc
* PMC support for Tegra186
* SoC detection support for Renesas RZ/G1H and RZ/G1N
* Move Tegra flow controller driver from mach directory to drivers/soc
- (Power management / CPU power driver)
* Misc smaller tweaks for other platforms
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs:
Reset subsystem, merged through arm-soc by tradition:
- Make bool drivers explicitly non-modular
- New support for i.MX7 and Arria10 reset controllers
PATA driver for Palmchip BK371 (acked by Tejun)
Power domain drivers for i.MX (GPC, GPCv2)
- Moved out of mach-imx for GPC
- Bunch of tweaks, fixes, etc
PMC support for Tegra186
SoC detection support for Renesas RZ/G1H and RZ/G1N
Move Tegra flow controller driver from mach directory to drivers/soc
- (Power management / CPU power driver)
Misc smaller tweaks for other platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
soc: pm-domain: Fix the mangled urls
soc: renesas: rcar-sysc: Add support for R-Car H3 ES2.0
soc: renesas: rcar-sysc: Add support for fixing up power area tables
soc: renesas: Register SoC device early
soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver
dt-bindings: imx-gpc: add i.MX6 QuadPlus compatible
soc: imx: gpc: add defines for domain index
soc: imx: Add GPCv2 power gating driver
dt-bindings: Add GPCv2 power gating driver
ARM/clk: move the ICST library to drivers/clk
ARM: plat-versatile: remove stale clock header
ARM: keystone: Drop PM domain support for k2g
soc: ti: Add ti_sci_pm_domains driver
dt-bindings: Add TI SCI PM Domains
PM / Domains: Do not check if simple providers have phandle cells
PM / Domains: Add generic data pointer to genpd data struct
soc/tegra: Add initial flowctrl support for Tegra132/210
soc/tegra: flowctrl: Add basic platform driver
soc/tegra: Move Tegra flowctrl driver
ARM: tegra: Remove unnecessary inclusion of flowctrl header
...
immrbar_virt_to_phys() is not used anymore
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Li Yang <pku.leo@gmail.com>
Signed-off-by: Scott Wood <oss@buserror.net>
Since commit 5093bb965a ("powerpc/QE: switch to the cpm_muram
implementation"), muram area is not part of immrbar mapping anymore
so immrbar_virt_to_phys() is not usable anymore.
Fixes: 5093bb965a ("powerpc/QE: switch to the cpm_muram implementation")
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Li Yang <pku.leo@gmail.com>
Signed-off-by: Scott Wood <oss@buserror.net>
The flowctrl driver is required for both ARM and ARM64 Tegra devices
and in order to enable support for it for ARM64, move the Tegra flowctrl
driver into drivers/soc/tegra.
By moving the flowctrl driver, tegra_flowctrl_init() is now called by
via an early initcall and to prevent this function from attempting to
mapping IO space for a non-Tegra device, a test for 'soc_is_tegra()'
is also added.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
With the new Tegra186 PMC driver merged, anything that relies on the previous
PMC driver fails to link when that is disabled:
arch/arm/mach-tegra/pm.o: In function `tegra_pm_set':
pm.c:(.text.tegra_pm_set+0x3c): undefined reference to `tegra_pmc_enter_suspend_mode'
arch/arm/mach-tegra/pm.o: In function `tegra_suspend_enter':
pm.c:(.text.tegra_suspend_enter+0x4): undefined reference to `tegra_pmc_get_suspend_mode'
arch/arm/mach-tegra/pm.o: In function `tegra_init_suspend':
pm.c:(.init.text+0x1c): undefined reference to `tegra_pmc_get_suspend_mode'
pm.c:(.init.text+0x74): undefined reference to `tegra_pmc_set_suspend_mode'
ERROR: tegra_powergate_sequence_power_up [drivers/ata/ahci_tegra.ko] undefined!
ERROR: tegra_powergate_power_off [drivers/ata/ahci_tegra.ko] undefined!
Making the definition depend on the presence of the driver makes it build
again, though that might not be the correct fix.
Reported-by: Krzysztof Kozlowski <krzk@kernel.org>
Fixes: 854014236290 ("soc/tegra: Implement Tegra186 PMC support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
A few other things need to be added in soc/qman, such that
caam/qi won't open-code them.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Export qman_query_fq_np() function and related structures.
This will be needed in the caam/qi driver, where "queue empty"
condition will be decided based on the frm_cnt.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Add and export the ID of the channel serviced by the
CAAM (Cryptographic Acceleration and Assurance Module) DCP.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Since qman_volatile_dequeue() is already exported, move the related
structures into the public header too.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
- Intc imporvements [Yuriy]
- VDK platform updates [Alexey]
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Merge tag 'arc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
- Intc imporvements [Yuriy]
- VDK platform updates [Alexey]
* tag 'arc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: [plat-*] ARC_HAS_COH_CACHES no longer relevant
ARCv2: intc: Delete useless comments in Device Trees
ARCv2: IDU-intc: Delete deprecated parameters in Device Trees
ARCv2: IDU-intc: mask all common interrupts by default
ARCv2: IDU-intc: Use build registers for getting numbers of interrupts
ARCv2: intc: Set default priority for all core interrupts
ARCv2: intc: Use runtime value of irq count for setting up intc
ARCv2: intc: Rework the build time irq count information
ARC: [intc-*]: confine NR_CPU_IRQS to intc code
ARCv2: intc: Use ARC_REG_STATUS32 for addressing STATUS32 reg
arc: vdk: Add support of UIO
arc: vdk: Add support of MMC controller
arc: vdk: Disable halt on reset
This enhancement is needed to allow masking all available common interrupts
in IDU interrupt controller in boot time since the kernel can
discover a number of them from the build register. Also now there
is no need to specify in device tree a list of used core interrupts
by IDU. E.g. before:
idu_intc: idu-interrupt-controller {
compatible = "snps,archs-idu-intc";
interrupt-controller;
interrupt-parent = <&core_intc>;
#interrupt-cells = <2>;
interrupts = <24 25 26 27 28 29 30 31>;
};
and after:
idu_intc: idu-interrupt-controller {
compatible = "snps,archs-idu-intc";
interrupt-controller;
interrupt-parent = <&core_intc>;
#interrupt-cells = <2>;
};
Signed-off-by: Yuriy Kolerov <yuriy.kolerov@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
The Atmel MPDDR controller support LPDDR2 and LPDDR3 memories, add their
types.
Cc: <stable@vger.kernel.org> # 4.4+
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Highlights include:
- Support for the kexec_file_load() syscall, which is a prereq for secure and
trusted boot.
- Prevent kernel execution of userspace on P9 Radix (similar to SMEP/PXN).
- Sort the exception tables at build time, to save time at boot, and store
them as relative offsets to save space in the kernel image & memory.
- Allow building the kernel with thin archives, which should allow us to build
an allyesconfig once some other fixes land.
- Build fixes to allow us to correctly rebuild when changing the kernel endian
from big to little or vice versa.
- Plumbing so that we can avoid doing a full mm TLB flush on P9 Radix.
- Initial stack protector support (-fstack-protector).
- Support for dumping the radix (aka. Linux) and hash page tables via debugfs.
- Fix an oops in cxl coredump generation when cxl_get_fd() is used.
- Freescale updates from Scott: "Highlights include 8xx hugepage support,
qbman fixes/cleanup, device tree updates, and some misc cleanup."
- Many and varied fixes and minor enhancements as always.
Thanks to:
Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anshuman Khandual,
Anton Blanchard, Balbir Singh, Bartlomiej Zolnierkiewicz, Christophe Jaillet,
Christophe Leroy, Denis Kirjanov, Elimar Riesebieter, Frederic Barrat,
Gautham R. Shenoy, Geliang Tang, Geoff Levand, Jack Miller, Johan Hovold,
Lars-Peter Clausen, Libin, Madhavan Srinivasan, Michael Neuling, Nathan
Fontenot, Naveen N. Rao, Nicholas Piggin, Pan Xinhui, Peter Senna Tschudin,
Rashmica Gupta, Rui Teng, Russell Currey, Scott Wood, Simon Guo, Suraj
Jitindar Singh, Thiago Jung Bauermann, Tobias Klauser, Vaibhav Jain.
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Merge tag 'powerpc-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights include:
- Support for the kexec_file_load() syscall, which is a prereq for
secure and trusted boot.
- Prevent kernel execution of userspace on P9 Radix (similar to
SMEP/PXN).
- Sort the exception tables at build time, to save time at boot, and
store them as relative offsets to save space in the kernel image &
memory.
- Allow building the kernel with thin archives, which should allow us
to build an allyesconfig once some other fixes land.
- Build fixes to allow us to correctly rebuild when changing the
kernel endian from big to little or vice versa.
- Plumbing so that we can avoid doing a full mm TLB flush on P9
Radix.
- Initial stack protector support (-fstack-protector).
- Support for dumping the radix (aka. Linux) and hash page tables via
debugfs.
- Fix an oops in cxl coredump generation when cxl_get_fd() is used.
- Freescale updates from Scott: "Highlights include 8xx hugepage
support, qbman fixes/cleanup, device tree updates, and some misc
cleanup."
- Many and varied fixes and minor enhancements as always.
Thanks to:
Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anshuman
Khandual, Anton Blanchard, Balbir Singh, Bartlomiej Zolnierkiewicz,
Christophe Jaillet, Christophe Leroy, Denis Kirjanov, Elimar
Riesebieter, Frederic Barrat, Gautham R. Shenoy, Geliang Tang, Geoff
Levand, Jack Miller, Johan Hovold, Lars-Peter Clausen, Libin,
Madhavan Srinivasan, Michael Neuling, Nathan Fontenot, Naveen N.
Rao, Nicholas Piggin, Pan Xinhui, Peter Senna Tschudin, Rashmica
Gupta, Rui Teng, Russell Currey, Scott Wood, Simon Guo, Suraj
Jitindar Singh, Thiago Jung Bauermann, Tobias Klauser, Vaibhav Jain"
[ And thanks to Michael, who took time off from a new baby to get this
pull request done. - Linus ]
* tag 'powerpc-4.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (174 commits)
powerpc/fsl/dts: add FMan node for t1042d4rdb
powerpc/fsl/dts: add sg_2500_aqr105_phy4 alias on t1024rdb
powerpc/fsl/dts: add QMan and BMan nodes on t1024
powerpc/fsl/dts: add QMan and BMan nodes on t1023
soc/fsl/qman: test: use DEFINE_SPINLOCK()
powerpc/fsl-lbc: use DEFINE_SPINLOCK()
powerpc/8xx: Implement support of hugepages
powerpc: get hugetlbpage handling more generic
powerpc: port 64 bits pgtable_cache to 32 bits
powerpc/boot: Request no dynamic linker for boot wrapper
soc/fsl/bman: Use resource_size instead of computation
soc/fsl/qe: use builtin_platform_driver
powerpc/fsl_pmc: use builtin_platform_driver
powerpc/83xx/suspend: use builtin_platform_driver
powerpc/ftrace: Fix the comments for ftrace_modify_code
powerpc/perf: macros for power9 format encoding
powerpc/perf: power9 raw event format encoding
powerpc/perf: update attribute_group data structure
powerpc/perf: factor out the event format field
powerpc/mm/iommu, vfio/spapr: Put pages on VFIO container shutdown
...
Driver updates for ARM SoCs, including a couple of newly added drivers:
- A new driver for the power management controller on TI Keystone
- Support for the prerelease "SCPI" firmware protocol that ended up
being shipped by Amlogic in their GXBB SoC.
- A soc_device can now be matched using a glob from inside the
kernel, when another driver wants to know the specific chip
it is running on and cannot find out from DT, firmware or hardware.
- Renesas SoCs now support identification through the soc_device
interface, both in user space and kernel.
- Renesas r8a7743 and r8a7745 gain support for their system controller
- A new checking module for the ARM "PSCI" (not to be confused
with "SCPI" mentioned above) firmware interface.
- A new driver for the Tegra GMI memory interface
- Support for the Tegra firmware interfaces with their
power management controllers
As usual, the updates for the reset controller framework are merged
here, as they tend to touch multiple SoCs as well, including a new
driver for the Oxford (now Broadcom) OX820 chip and the Tegra
bpmp interface.
The existing drivers for Atmel, Qualcomm, NVIDIA, TI Davinci, and
Rockchips SoCs see some further updates.
Conflicts:
- ARCH_RENESAS now selects SOC_BUS, but no longer needs GPIOLIB
- drivers/soc/renesas/Makefile: multiple files got added, keep
all in logical sorting
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Driver updates for ARM SoCs, including a couple of newly added
drivers:
- A new driver for the power management controller on TI Keystone
- Support for the prerelease "SCPI" firmware protocol that ended up
being shipped by Amlogic in their GXBB SoC.
- A soc_device can now be matched using a glob from inside the
kernel, when another driver wants to know the specific chip it is
running on and cannot find out from DT, firmware or hardware.
- Renesas SoCs now support identification through the soc_device
interface, both in user space and kernel.
- Renesas r8a7743 and r8a7745 gain support for their system
controller
- A new checking module for the ARM "PSCI" (not to be confused with
"SCPI" mentioned above) firmware interface.
- A new driver for the Tegra GMI memory interface
- Support for the Tegra firmware interfaces with their power
management controllers
As usual, the updates for the reset controller framework are merged
here, as they tend to touch multiple SoCs as well, including a new
driver for the Oxford (now Broadcom) OX820 chip and the Tegra bpmp
interface.
The existing drivers for Atmel, Qualcomm, NVIDIA, TI Davinci, and
Rockchips SoCs see some further updates"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (76 commits)
misc: sram: remove useless #ifdef
drivers: psci: Allow PSCI node to be disabled
drivers: psci: PSCI checker module
soc: renesas: Identify SoC and register with the SoC bus
firmware: qcom: scm: Return PTR_ERR when devm_clk_get fails
firmware: qcom: scm: Remove core, iface and bus clocks dependency
dt-bindings: firmware: scm: Add MSM8996 DT bindings
memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name()
bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name()
ARM: shmobile: Document DT bindings for Product Register
soc: renesas: rcar-sysc: add R8A7745 support
reset: Add Tegra BPMP reset driver
dt-bindings: firmware: Allow child nodes inside the Tegra BPMP
dt-bindings: Add power domains to Tegra BPMP firmware
firmware: tegra: Add BPMP support
firmware: tegra: Add IVC library
dt-bindings: firmware: Add bindings for Tegra BPMP
mailbox: tegra-hsp: Use after free in tegra_hsp_remove_doorbells()
mailbox: Add Tegra HSP driver
firmware: arm_scpi: add support for pre-v1.0 SCPI compatible
...
- Moving ARC timer driver into drivers/clocksource
- EZChip timer driver updates [Noam]
- ARC AXS103 and HAPS platform updates [Alexey]
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Merge tag 'arc-4.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
"These are mostly timer/clocksource driver updates which were
Reviewed/Acked by Daniel but had to be merged via ARC tree due to
dependencies.
I will follow up with another pull request with actual ARC changes
early next week !
Summary:
- Moving ARC timer driver into drivers/clocksource
- EZChip timer driver updates [Noam]
- ARC AXS103 and HAPS platform updates [Alexey]"
* tag 'arc-4.10-rc1-part1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: axs10x: really enable ARC PGU
ARC: rename Zebu platform support to HAPS
clocksource: nps: avoid maybe-uninitialized warning
clocksource: Add clockevent support to NPS400 driver
clocksource: update "fn" at CLOCKSOURCE_OF_DECLARE() of nps400 timer
soc: Support for NPS HW scheduling
clocksource: import ARC timer driver
ARC: breakout timer include code into separate header ...
ARC: move mcip.h into include/soc and adjust the includes
ARC: breakout aux handling into a separate header
ARC: time: move time_init() out of the driver
ARC: timer: gfrc, rtc: build under same option (64-bit timers)
ARC: timer: gfrc, rtc: Read BCR to detect whether hardware exists ...
ARC: timer: gfrc, rtc: deuglify big endian code
This new header file is for NPS400 SoC (part of ARC architecture).
The header file includes macros for save/restore of HW scheduling.
The control of HW scheduling is achieved by writing core registers.
This code was moved from arc/plat-eznps so it can be used
from drivers/clocksource/, available only for CONFIG_EZNPS_MTM_EXT.
Signed-off-by: Noam Camus <noamca@mellanox.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Also remove the dependency on ARCv2, to increase compile coverage for
!ARCV2 builds
Acked-by: Daniel Lezcano <daniel.lezcnao@linaro.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
ARC timers use aux registers for programming and this paves way for
moving ARC timer drivers into drivers/clocksource
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
The hardware descriptors have big endian (BE) format.
Provide proper endianness handling for the remaining
descriptor fields, to ensure they are correctly
accessed by non-BE CPUs too.
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
There are multiple occurences of both contextB and context_b
in different h/w descriptors, referring to the same descriptor
field known as "Context B". Stick with the "context_b" naming,
for obvious reasons including consistency (see also context_a).
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
Preventively mask every access to the 'fqid' h/w field,
since it is defined as a 24-bit field, for every h/w
descriptor. Add generic accessors for this field to
ensure correct access.
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
This contains mostly cleanup and new feature work on the power
management controller as well as the addition of a Kconfig symbol for
the new Tegra186 (Parker) SoC generation.
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Merge tag 'tegra-for-4.10-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
soc: tegra: Core SoC changes for v4.10-rc1
This contains mostly cleanup and new feature work on the power
management controller as well as the addition of a Kconfig symbol for
the new Tegra186 (Parker) SoC generation.
* tag 'tegra-for-4.10-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Use consistent naming for PM domains
soc/tegra: pmc: Remove genpd when adding provider fails
soc/tegra: pmc: Check return code for pm_genpd_init()
soc/tegra: pmc: Clean-up I/O rail error messages
soc/tegra: pmc: Simplify IO rail bit handling
soc/tegra: pmc: Guard against uninitialised PMC clock
soc/tegra: pmc: Add I/O pad voltage support
soc/tegra: pmc: Use consistent ordering of bit definitions
soc/tegra: pmc: Correct type of variable for tegra_pmc_readl()
soc/tegra: pmc: Use BIT macro for register field definition
Signed-off-by: Olof Johansson <olof@lixom.net>
IVC is an inter-processor communication protocol that uses shared memory
to exchange data between processors. The BPMP driver makes use of this
to communicate with the Boot and Power Management Processor (BPMP) and
uses an additional hardware synchronization primitive from the HSP block
to signal availability of new data (doorbell).
Firmware running on the BPMP implements a number of services such as the
control of clocks and resets within the system, or the ability to ungate
or gate power partitions.
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Merge tag 'tegra-for-4.10-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
firmware: Add Tegra IVC and BPMP support
IVC is an inter-processor communication protocol that uses shared memory
to exchange data between processors. The BPMP driver makes use of this
to communicate with the Boot and Power Management Processor (BPMP) and
uses an additional hardware synchronization primitive from the HSP block
to signal availability of new data (doorbell).
Firmware running on the BPMP implements a number of services such as the
control of clocks and resets within the system, or the ability to ungate
or gate power partitions.
* tag 'tegra-for-4.10-firmware' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
dt-bindings: firmware: Allow child nodes inside the Tegra BPMP
dt-bindings: Add power domains to Tegra BPMP firmware
firmware: tegra: Add BPMP support
firmware: tegra: Add IVC library
dt-bindings: firmware: Add bindings for Tegra BPMP
Signed-off-by: Olof Johansson <olof@lixom.net>
The Boot and Power Management Processor (BPMP) is a co-processor found
on Tegra SoCs. It is designed to handle the early stages of the boot
process and offload power management tasks (such as clocks, resets,
powergates, ...) as well as system control services.
Compared to the ARM SCPI, the services provided by BPMP are message-
based rather than method-based. The BPMP firmware driver provides the
services to transmit data to and receive data from the BPMP. Users can
also register a Message ReQuest (MRQ), for which a service routine will
be run when a corresponding event is received from the firmware.
A set of messages, called the BPMP ABI, are specified for a number of
different services provided by the BPMP (such as clocks or resets).
Based on work by Sivaram Nair <sivaramn@nvidia.com> and Joseph Lo
<josephl@nvidia.com>.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The Inter-VM communication (IVC) is a communication protocol which is
designed for interprocessor communication (IPC) or the communication
between the hypervisor and the virtual machine with a guest OS.
Message channels are used to communicate between processors. They are
backed by DRAM or SRAM, so care must be taken to maintain coherence of
data.
The IVC library maintains memory-based descriptors for the transmission
and reception channels as well as the data coherence of the counter and
payload. Clients, such as the driver for the BPMP firmware, can use the
library to exchange messages with remote processors.
Based on work by Peter Newman <pnewman@nvidia.com> and Joseph Lo
<josephl@nvidia.com>.
Signed-off-by: Thierry Reding <treding@nvidia.com>
I/O pins on Tegra SoCs are grouped into so-called I/O pads. Each such
pad can be used to control the common voltage signal level and power
state of the pins in the given pad.
I/O pads can be powered down even if the system is active, which can
save power from that I/O interface. For SoC generations prior to
Tegra124 the I/O pad voltage is automatically detected and hence the
system software doesn't need to configure it. However, starting with
Tegra210 the detection logic has been removed, so explicit control of
the I/O pad voltage by system software is required.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The raspberrypi-firmware.h file should provide empty functions if we
aren't building in that option. This makes it easier to test-build
code, and not have odd warnings about unused variables if you just try
to #define away the functions.
Cc: Daniel Stone <daniels@collabora.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Pranith Kumar <bobby.prani@gmail.com>
Cc: popcornmix <popcornmix@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This comes from the downstream tree and is needed for the new VCHIQ
driver in staging.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
that weren't causing enough problems (or any problems when we're just
clarifying things) to warrant sending outside the merge window. The
majority of changes are in drivers for various SoCs. Full details
are in the logs, but here's the summary.
Core:
- Better support for DeviceTree overlays with the addition of the
CLK_OF_DECLARE_DRIVER macro. Now we won't probe a clk driver
for a device node that matched during of_clk_init(), unless
the driver uses CLK_OF_DECLARE_DRIVER instead of CLK_OF_DECLARE.
This allows overlays to work cleanly for drivers that must probe
before the device model is ready, and also after it's ready
when an overlay is loaded.
- Clarification in the code around how clk_hw pointers are returned
from of clk providers
- Proper migration of prepare/enable counts to parents when the
clk tree is constructed
New Drivers:
- Socionext's UniPhier SoCs
- Loongson1C
- ZTE ZX296718
- Qualcomm MDM9615
- Amlogic GXBB AO clocks and resets
- Broadcom BCM53573 ILP
- Maxim MAX77620
Updates:
- Four Allwinner SoCs are migrated to the new style clk driver (A31, A31s,
A23 and A33)
- Exynos 5xxx audio and DRAM clks
- Loongson1B AC97, DMA and NAND clks
- Rockchip DDR clks and rk3399 driver tweaks
- Renesas R-Car M3-W (r8a7796) SoC SDHI interface and Watchdog timer clks
- Renasas R-Car H3 and M3-W CMT clks and RAVB+Thermal clks for M3-W
- Amlogic GXBB MMC gate clks
- at91 sama5d4 sckc
- Removal of STiH415 and STiH416 clk support as the SoC is being removed
- Rework of STiH4xx clk support for new style bindings
- Continuation of driver migration to clk_hw based registration APIs
- xgene PMD support
- bcm2835 critical clk markings
- ARM versatile ICST
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk framework updates from Stephen Boyd:
"The core clk framework changes are small again. They're mostly minor
fixes that weren't causing enough problems (or any problems when we're
just clarifying things) to warrant sending outside the merge window.
The majority of changes are in drivers for various SoCs. Full details
are in the logs, but here's the summary.
Core:
- Better support for DeviceTree overlays with the addition of the
CLK_OF_DECLARE_DRIVER macro. Now we won't probe a clk driver for a
device node that matched during of_clk_init(), unless the driver
uses CLK_OF_DECLARE_DRIVER instead of CLK_OF_DECLARE. This allows
overlays to work cleanly for drivers that must probe before the
device model is ready, and also after it's ready when an overlay is
loaded.
- Clarification in the code around how clk_hw pointers are returned
from of clk providers
- Proper migration of prepare/enable counts to parents when the clk
tree is constructed
New Drivers:
- Socionext's UniPhier SoCs
- Loongson1C
- ZTE ZX296718
- Qualcomm MDM9615
- Amlogic GXBB AO clocks and resets
- Broadcom BCM53573 ILP
- Maxim MAX77620
Updates:
- Four Allwinner SoCs are migrated to the new style clk driver (A31,
A31s, A23 and A33)
- Exynos 5xxx audio and DRAM clks
- Loongson1B AC97, DMA and NAND clks
- Rockchip DDR clks and rk3399 driver tweaks
- Renesas R-Car M3-W (r8a7796) SoC SDHI interface and Watchdog timer
clks
- Renasas R-Car H3 and M3-W CMT clks and RAVB+Thermal clks for M3-W
- Amlogic GXBB MMC gate clks
- at91 sama5d4 sckc
- Removal of STiH415 and STiH416 clk support as the SoC is being
removed
- Rework of STiH4xx clk support for new style bindings
- Continuation of driver migration to clk_hw based registration APIs
- xgene PMD support
- bcm2835 critical clk markings
- ARM versatile ICST"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (199 commits)
CLK: Add Loongson1C clock support
clk: Loongson1: Make use of GENMASK
clk: Loongson1: Update clocks of Loongson1B
clk: Loongson1: Refactor Loongson1 clock
clk: change the type of clk_hw_onecell_data.num to unsigned int
clk: zx296718: register driver earlier with core_initcall
clk: mvebu: dynamically allocate resources in Armada CP110 system controller
clk: mvebu: fix setting unwanted flags in CP110 gate clock
clk: nxp: clk-lpc32xx: Unmap region obtained by of_iomap
clk: mediatek: clk-mt8173: Unmap region obtained by of_iomap
clk: sunxi-ng: Fix reset offset for the A23 and A33
clk: at91: sckc: optimize boot time
clk: at91: Add sama5d4 sckc support
clk: at91: move slow clock controller clocks to sckc.c
clk: imx6: initialize GPU clocks
clk: imx6: fix i.MX6DL clock tree to reflect reality
clk: imx53: Add clocks configuration
clk: uniphier: add clock data for UniPhier SoCs
clk: uniphier: add core support code for UniPhier clock driver
clk: bcm: Add driver for BCM53573 ILP clock
...
This driver enables the Freescale DPAA 1.x Queue Manager block.
QMan is a hardware accelerator that manages frame queues. It allows
CPUs and other accelerators connected to the SoC datapath to enqueue
and dequeue ethernet frames, thus providing the infrastructure for
data exchange among CPUs and datapath accelerators.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
This driver enables the Freescale DPAA 1.x Buffer Manager block.
BMan is a hardware accelerator that manages buffer pools. It allows
CPUs and other accelerators connected to the SoC datapath to acquire
and release buffers during data processing.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
Add a header for the SIP interface defined to access the dcf controller
handling ddr rate changes on rk3399 (and most likely later socs).
This interface is shared between the clock driver as well as the
devfreq driver.
The SIP interface counterpart was merged from pull-request #684 [0]
into the upstream arm-trusted-firmware codebase.
[0] https://github.com/ARM-software/arm-trusted-firmware/pull/684
Signed-off-by: Lin Huang <hl@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The usb controller does not manage correctly the suspend mode for
the ehci. In echi mode, there is no way to suspend without any
device connected to it. This is why this specific control is added
to fix this issue. Since the suspend mode works in ohci mode, this
specific control works by suspend the usb controller in ohci mode.
This specific control is by setting the SUSPEND_A/B/C fields of
SFR_OHCIICR(OHCI Interrupt Configuration Register) in the SFR
while the OHCI USB suspend.
This set operation must be done before the USB clock disabled,
clear operation after the USB clock enabled.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Driver updates for ARM SoCs.
A slew of changes this release cycle. The reset driver tree, that we merge
through arm-soc for historical reasons, is also sizable this time around.
Among the changes:
- clps711x: Treewide changes to compatible strings, merged here for simplicity.
- Qualcomm: SCM firmware driver cleanups, move to platform driver
- ux500: Major cleanups, removal of old mach-specific infrastructure.
- Atmel external bus memory driver
- Move of brcmstb platform to the rest of bcm
- PMC driver updates for tegra, various fixes and improvements
- Samsung platform driver updates to support 64-bit Exynos platforms
- Reset controller cleanups moving to devm_reset_controller_register() APIs
- Reset controller driver for Amlogic Meson
- Reset controller driver for Hisilicon hi6220
- ARM SCPI power domain support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs.
A slew of changes this release cycle. The reset driver tree, that we
merge through arm-soc for historical reasons, is also sizable this
time around.
Among the changes:
- clps711x: Treewide changes to compatible strings, merged here for simplicity.
- Qualcomm: SCM firmware driver cleanups, move to platform driver
- ux500: Major cleanups, removal of old mach-specific infrastructure.
- Atmel external bus memory driver
- Move of brcmstb platform to the rest of bcm
- PMC driver updates for tegra, various fixes and improvements
- Samsung platform driver updates to support 64-bit Exynos platforms
- Reset controller cleanups moving to devm_reset_controller_register() APIs
- Reset controller driver for Amlogic Meson
- Reset controller driver for Hisilicon hi6220
- ARM SCPI power domain support"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
ARM: ux500: consolidate base platform files
ARM: ux500: move soc_id driver to drivers/soc
ARM: ux500: call ux500_setup_id later
ARM: ux500: consolidate soc_device code in id.c
ARM: ux500: remove cpu_is_u* helpers
ARM: ux500: use CLK_OF_DECLARE()
ARM: ux500: move l2x0 init to .init_irq
mfd: db8500 stop passing around platform data
ASoC: ab8500-codec: remove platform data based probe
ARM: ux500: move ab8500_regulator_plat_data into driver
ARM: ux500: remove unused regulator data
soc: raspberrypi-power: add CONFIG_OF dependency
firmware: scpi: add CONFIG_OF dependency
video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
serial: clps711x: Changing the compatibility string to match with the smallest supported chip
irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
clk: clps711x: Changing the compatibility string to match with the smallest supported chip
...
The PCIe host controller found on Tegra20 has a hardware bug that causes
PCIe interrupts to get lost when LP2 is enabled. Stub out the workaround
on 64-bit ARM because none of the more recent Tegra SoC generations seem
to have this bug anymore.
Signed-off-by: Thierry Reding <treding@nvidia.com>
If both CONFIG_CPU_IDLE or CONFIG_SOC_IMX6Q are not set
then the imx6q_cpuidle_fec_irqs_used() and other functions
should be marked static inline to avoid the following
warnings whilst building drivers/net/ethernet/freescale:
include/soc/imx/cpuidle.h:21:6: warning: symbol 'imx6q_cpuidle_fec_irqs_used' was not declared. Should it be static?
include/soc/imx/cpuidle.h:22:6: warning: symbol 'imx6q_cpuidle_fec_irqs_unused' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The i.MX6 Q/DL has an erratum (ERR006687) that prevents the FEC from
waking the CPUs when they are in wait(unclocked) state. As the hardware
workaround isn't applicable to all boards, disable the deeper idle state
when the workaround isn't present and the FEC is in use.
This allows to safely run a kernel with CPUidle enabled on all i.MX6
boards.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: David S. Miller <davem@davemloft.net> (for network changes)
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The CONFIG_ prefix should only be used for options which
can be configured through Kconfig and not for guarding headers.
Signed-off-by: Andreas Ziegler <andreas.ziegler@fau.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver add hdlc support for Freescale QUICC Engine.
It support NMSI and TSA mode.
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
QE has module to support TDM, some other protocols
supported by QE are based on TDM.
add a qe-tdm lib, this lib provides functions to the protocols
using TDM to configurate QE-TDM.
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add tdm clock configuration in both qe clock system and ucc
fast controller.
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rx_sync and tx_sync are used by QE-TDM mode,
add them to struct ucc_fast_info.
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Support for EZChip (now Mellanox) NPS-400 Network processor based on ARC700
http://www.mellanox.com/related-docs/prod_npu/PB_NPS-400.pdf
- NPS interrupt controller and clocksource drivers
- ARC timers probed off DT
- ARC iqrchips switching to linear domain (upgrade from legacy domains)
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Merge tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
"We have a relatively big changeset for ARC for 4.7.
The highlight is support for EZChip (now Mellanox) NPS-400 network
processor, a 400-Gb throughput C-programmable packet processor based
on ARC700 cores from Synopsys. See
http://www.mellanox.com/related-docs/prod_npu/PB_NPS-400.pdf
Also present are irqchip and clocksource drivers for NPS as agreed
with respective maintainers to go via ARC tree due to an soc header
dependency. I have the needed ACKs from Jason, Marc, Daniel. You
might run into a trivial merge conflict in drivers/irqchip/*
This EZChip platform support required some deep changes in ARC
architecture code and also opportunity to cleanup past sins (legacy
irq domains, missing irq domain lookup, hard coded timer irqs...)
Summary:
- Support for EZChip (now Mellanox) NPS-400 Network processor based
on ARC700
- NPS interrupt controller and clocksource drivers
- ARC timers probed off DT
- ARC iqrchips switching to linear domain (upgrade from legacy
domains)"
* tag 'arc-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: (37 commits)
arc: axs103_smp: Fix CPU frequency to 100MHz for dual-core
arc: axs10x: Add DT bindings for I2S PLL Clock
ARC: pae: STRICT_MM_TYPECHECKS was broken
ARC: Add eznps platform to Kconfig and Makefile
ARC: [plat-eznps] Use dedicated COMMAND_LINE_SIZE
ARC: [plat-eznps] Use dedicated cpu_relax()
ARC: [plat-eznps] Use dedicated identity auxiliary register.
ARC: [plat-eznps] Use dedicated SMP barriers
ARC: [plat-eznps] Use dedicated atomic/bitops/cmpxchg
ARC: [plat-eznps] Use dedicated user stack top
ARC: [plat-eznps] Add eznps platform
ARC: [plat-eznps] Add eznps board defconfig and dts
ARC: Mark secondary cpu online only after all HW setup is done
ARC: rwlock: disable interrupts in !LLSC variant
ARC: Make vmalloc size configurable
ARC: clean out UAPI byteorder.h clean off Kconfig symbol
irqchip: add nps Internal and external irqchips
clocksource: Add NPS400 timers driver
soc: Support for EZchip SoC
Documentation: Add EZchip vendor to binding list
...
Driver updates for ARM SoCs, these contain various things that touch
the drivers/ directory but got merged through arm-soc for practical
reasons. For the most part, this is now related to power management
controllers, which have not yet been abstracted into a separate
subsystem, and typically require some code in drivers/soc or arch/arm
to control the power domains.
Another large chunk here is a rework of the NVIDIA Tegra USB3.0
support, which was surprisingly tricky and took a long time to
get done.
Finally, reset controller handling as always gets merged through here
as well.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Driver updates for ARM SoCs, these contain various things that touch
the drivers/ directory but got merged through arm-soc for practical
reasons.
For the most part, this is now related to power management
controllers, which have not yet been abstracted into a separate
subsystem, and typically require some code in drivers/soc or arch/arm
to control the power domains.
Another large chunk here is a rework of the NVIDIA Tegra USB3.0
support, which was surprisingly tricky and took a long time to get
done.
Finally, reset controller handling as always gets merged through here
as well"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
arm-ccn: Enable building as module
soc/tegra: pmc: Add generic PM domain support
usb: xhci: tegra: Add Tegra210 support
usb: xhci: Add NVIDIA Tegra XUSB controller driver
dt-bindings: usb: xhci-tegra: Add Tegra210 XUSB controller support
dt-bindings: usb: Add NVIDIA Tegra XUSB controller binding
PCI: tegra: Support per-lane PHYs
dt-bindings: pci: tegra: Update for per-lane PHYs
phy: tegra: Add Tegra210 support
phy: Add Tegra XUSB pad controller support
dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support
dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding
phy: core: Allow children node to be overridden
clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs
drivers: firmware: psci: make two helper functions inline
soc: renesas: rcar-sysc: Add support for R-Car H3 power areas
soc: renesas: rcar-sysc: Add support for R-Car E2 power areas
soc: renesas: rcar-sysc: Add support for R-Car M2-N power areas
soc: renesas: rcar-sysc: Add support for R-Car M2-W power areas
soc: renesas: rcar-sysc: Add support for R-Car H2 power areas
...
Implements generic PM domain support on top of the existing Tegra power-
gate API. Drivers are thus allowed to move away from the Tegra-specific
API and towards using generic power domains directly.
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Merge tag 'tegra-for-4.7-genpd' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Merge "soc/tegra: Add generic PM domain support" from Thierry Reding:
Implements generic PM domain support on top of the existing Tegra power-
gate API. Drivers are thus allowed to move away from the Tegra-specific
API and towards using generic power domains directly.
* tag 'tegra-for-4.7-genpd' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Add generic PM domain support
dt-bindings: Add power domain info for NVIDIA PMC
This set of patches adds support for the Tegra XUSB pad controller. The
controller provides a set of pads (lanes) that are used for I/O by other
IP blocks within Tegra SoCs (PCIe, SATA and XUSB).
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Merge tag 'tegra-for-4.7-phy' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Merge "phy: tegra: Changes for v4.7-rc1" from Thierry Reding:
This set of patches adds support for the Tegra XUSB pad controller. The
controller provides a set of pads (lanes) that are used for I/O by other
IP blocks within Tegra SoCs (PCIe, SATA and XUSB).
* tag 'tegra-for-4.7-phy' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
phy: tegra: Add Tegra210 support
phy: Add Tegra XUSB pad controller support
dt-bindings: phy: tegra-xusb-padctl: Add Tegra210 support
dt-bindings: phy: Add NVIDIA Tegra XUSB pad controller binding
phy: core: Allow children node to be overridden
clk: tegra: Add interface to enable hardware control of SATA/XUSB PLLs
This header file is for NPS400 SoC.
It includes macros for accessing memory mapped registers.
These are functional registers that core can use to configure SoC.
Signed-off-by: Noam Camus <noamc@ezchip.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Adds generic PM domain support to the PMC driver where the PM domains
are populated from device-tree and the PM domain consumer devices are
bound to their relevant PM domains via device-tree as well.
Update the tegra_powergate_sequence_power_up() API so that internally
it calls the same tegra_powergate_xxx functions that are used by the
Tegra generic PM domain code for consistency.
To ensure that the Tegra power domains (a.k.a. powergates) cannot be
controlled via both the legacy tegra_powergate_xxx functions as well
as the generic PM domain framework, add a bit map for available
powergates that can be controlled via the legacy powergate functions.
Move the majority of the tegra_powergate_remove_clamping() function
to a sub-function, so that this can be used by both the legacy and
generic power domain code.
This is based upon work by Thierry Reding <treding@nvidia.com>
and Vince Hsu <vinceh@nvidia.com>.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add support for the XUSB pad controller found on Tegra210 SoCs. The
hardware is roughly the same, but some of the registers have been moved
around and the number and type of supported pads has changed.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The Tegra powergate and rail IDs are always positive values and so change
the type to be unsigned and remove the tests to see if the ID is less
than zero. Update the Tegra DC powergate type to be an unsigned as well.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This SFR node is looked up by the I2S controller driver to tune the
SFR_I2SCLKSEL register.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This time with:
* Updates for the Exynos IOMMU driver to make use of default
domains and to add support for the SYSMMU v5
* New Mediatek IOMMU driver
* Support for the ARMv7 short descriptor format in the
io-pgtable code
* Default domain support for the ARM SMMU
* Couple of other small fixes all over the place
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Merge tag 'iommu-updates-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
- updates for the Exynos IOMMU driver to make use of default domains
and to add support for the SYSMMU v5
- new Mediatek IOMMU driver
- support for the ARMv7 short descriptor format in the io-pgtable code
- default domain support for the ARM SMMU
- couple of other small fixes all over the place
* tag 'iommu-updates-v4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (41 commits)
iommu/ipmmu-vmsa: Add r8a7795 DT binding
iommu/mediatek: Check for NULL instead of IS_ERR()
iommu/io-pgtable-armv7s: Fix kmem_cache_alloc() flags
iommu/mediatek: Fix handling of of_count_phandle_with_args result
iommu/dma: Fix NEED_SG_DMA_LENGTH dependency
iommu/mediatek: Mark PM functions as __maybe_unused
iommu/mediatek: Select ARM_DMA_USE_IOMMU
iommu/exynos: Use proper readl/writel register interface
iommu/exynos: Pointers are nto physical addresses
dts: mt8173: Add iommu/smi nodes for mt8173
iommu/mediatek: Add mt8173 IOMMU driver
memory: mediatek: Add SMI driver
dt-bindings: mediatek: Add smi dts binding
dt-bindings: iommu: Add binding for mediatek IOMMU
iommu/ipmmu-vmsa: Use ARCH_RENESAS
iommu/exynos: Support multiple attach_device calls
iommu/exynos: Add Maintainers entry for Exynos SYSMMU driver
iommu/exynos: Add support for v5 SYSMMU
iommu/exynos: Update device tree documentation
iommu/exynos: Add support for SYSMMU controller with bogus version reg
...
as cpm_muram_alloc_common is used only in this file,
making it static
Signed-off-by: Saurabh Sengar <saurabh.truth@gmail.com>
Signed-off-by: Scott Wood <oss@buserror.net>
This patch add SMI(Smart Multimedia Interface) driver. This driver
is responsible to enable/disable iommu and control the power domain
and clocks of each local arbiter.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Tested-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Driver updates for ARM SoCs. Some for SoC-family code under drivers/soc,
but also some other driver updates that don't belong anywhere else. We also
bring in the drivers/reset code through arm-soc.
Some of the larger updates:
- Qualcomm support for SMEM, SMSM, SMP2P. All used to communicate with other
parts of the chip/board on these platforms, all proprietary protocols that
don't fit into other subsystems and live in drivers/soc for now.
- System bus driver for UniPhier
- Driver for the TI Wakeup M3 IPC device
- Power management for Raspberry PI
+ Again a bunch of other smaller updates and patches.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs. Some for SoC-family code under
drivers/soc, but also some other driver updates that don't belong
anywhere else. We also bring in the drivers/reset code through
arm-soc.
Some of the larger updates:
- Qualcomm support for SMEM, SMSM, SMP2P. All used to communicate
with other parts of the chip/board on these platforms, all
proprietary protocols that don't fit into other subsystems and live
in drivers/soc for now.
- System bus driver for UniPhier
- Driver for the TI Wakeup M3 IPC device
- Power management for Raspberry PI
+ Again a bunch of other smaller updates and patches"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
bus: uniphier: allow only built-in driver
ARM: bcm2835: clarify RASPBERRYPI_FIRMWARE dependency
MAINTAINERS: Drop Kumar Gala from QCOM
bus: uniphier-system-bus: add UniPhier System Bus driver
ARM: bcm2835: add rpi power domain driver
dt-bindings: add rpi power domain driver bindings
ARM: bcm2835: Define two new packets from the latest firmware.
drivers/soc: make mediatek/mtk-scpsys.c explicitly non-modular
soc: mediatek: SCPSYS: Add regulator support
MAINTAINERS: Change QCOM entries
soc: qcom: smd-rpm: Add existing platform support
memory/tegra: Add number of TLB lines for Tegra124
reset: hi6220: fix modular build
soc: qcom: Introduce WCNSS_CTRL SMD client
ARM: qcom: select ARM_CPU_SUSPEND for power management
MAINTAINERS: Add rules for Qualcomm dts files
soc: qcom: enable smsm/smp2p modular build
serial: msm_serial: Make config tristate
soc: qcom: smp2p: Qualcomm Shared Memory Point to Point
soc: qcom: smsm: Add driver for Qualcomm SMSM
...
ls1 has qe and ls1 has arm cpu.
move qe from arch/powerpc to drivers/soc/fsl
to adapt to powerpc and arm
Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
These packets give us direct access to the firmware's power management
code, as opposed to GET/SET_POWER_STATE packets that only had a couple
of domains implemented.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
As we've enabled multiplatform kernels on ARM, and greatly done away with
the contents under arch/arm/mach-*, there's still need for SoC-related
drivers to go somewhere.
Many of them go in through other driver trees, but we still have
drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
that might be shared between ARM and ARM64 (or just in general makes
sense to not have under the architecture directory).
This branch contains mostly such code:
- Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
with power management blocks on these SoCs for use by clock, regulator and
bus frequency drivers.
- Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
- Drivers for ARM's SCPI (System Control Processor). Not to be confused with
PSCI (Power State Coordination Interface). SCPI is used to communicate with
the assistant embedded cores doing power management, and we have yet to see
how many of them will implement this for their hardware vs abstracting in
other ways (or not at all like in the past).
- To make confusion between SCPI and PSCI more likely, this release also
includes an update of PSCI to interface version 1.0.
- Rockchip support for power domains.
- A driver to talk to the firmware on Raspberry Pi.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"As we've enabled multiplatform kernels on ARM, and greatly done away
with the contents under arch/arm/mach-*, there's still need for
SoC-related drivers to go somewhere.
Many of them go in through other driver trees, but we still have
drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
that might be shared between ARM and ARM64 (or just in general makes
sense to not have under the architecture directory).
This branch contains mostly such code:
- Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
communicate with power management blocks on these SoCs for use by
clock, regulator and bus frequency drivers.
- Allwinner Reduced Serial Bus driver, again used to communicate with
PMICs.
- Drivers for ARM's SCPI (System Control Processor). Not to be
confused with PSCI (Power State Coordination Interface). SCPI is
used to communicate with the assistant embedded cores doing power
management, and we have yet to see how many of them will implement
this for their hardware vs abstracting in other ways (or not at all
like in the past).
- To make confusion between SCPI and PSCI more likely, this release
also includes an update of PSCI to interface version 1.0.
- Rockchip support for power domains.
- A driver to talk to the firmware on Raspberry Pi"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
soc: qcom: smd-rpm: Correct size of outgoing message
bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
ARM: bcm2835: add mutual inclusion protection
drivers: psci: make PSCI 1.0 functions initialization version dependent
dt-bindings: Correct paths in Rockchip power domains binding document
soc: rockchip: power-domain: don't try to print the clock name in error case
soc: qcom/smem: add HWSPINLOCK dependency
clk: berlin: add cpuclk
ARM: berlin: dts: add CLKID_CPU for BG2Q
ARM: bcm2835: Add the Raspberry Pi firmware driver
soc: qcom: smem: Move RPM message ram out of smem DT node
soc: qcom: smd-rpm: Correct the active vs sleep state flagging
soc: qcom: smd: delete unneeded of_node_put
firmware: qcom-scm: build for correct architecture level
soc: qcom: smd: Correct SMEM items for upper channels
qcom-scm: add missing prototype for qcom_scm_is_available()
qcom-scm: fix endianess issue in __qcom_scm_is_call_available
soc: qcom: smd: Reject send of too big packets
soc: qcom: smd: Handle big endian CPUs
...
This patch adds mutual inclusion protection for the rpi firmware header.
Cc: Eric Anholt <eric@anholt.net>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This gives us a function for making mailbox property channel requests
of the firmware, which is most notable in that it will let us get and
set clock rates.
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
This time the IOMMU updates are mostly cleanups or fixes. No big new
features or drivers this time. In particular the changes include:
* Bigger cleanup of the Domain<->IOMMU data structures and the
code that manages them in the Intel VT-d driver. This makes
the code easier to understand and maintain, and also easier to
keep the data structures in sync. It is also a preparation
step to make use of default domains from the IOMMU core in the
Intel VT-d driver.
* Fixes for a couple of DMA-API misuses in ARM IOMMU drivers,
namely in the ARM and Tegra SMMU drivers.
* Fix for a potential buffer overflow in the OMAP iommu driver's
debug code
* A couple of smaller fixes and cleanups in various drivers
* One small new feature: Report domain-id usage in the Intel
VT-d driver to easier detect bugs where these are leaked.
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Merge tag 'iommu-updates-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates for from Joerg Roedel:
"This time the IOMMU updates are mostly cleanups or fixes. No big new
features or drivers this time. In particular the changes include:
- Bigger cleanup of the Domain<->IOMMU data structures and the code
that manages them in the Intel VT-d driver. This makes the code
easier to understand and maintain, and also easier to keep the data
structures in sync. It is also a preparation step to make use of
default domains from the IOMMU core in the Intel VT-d driver.
- Fixes for a couple of DMA-API misuses in ARM IOMMU drivers, namely
in the ARM and Tegra SMMU drivers.
- Fix for a potential buffer overflow in the OMAP iommu driver's
debug code
- A couple of smaller fixes and cleanups in various drivers
- One small new feature: Report domain-id usage in the Intel VT-d
driver to easier detect bugs where these are leaked"
* tag 'iommu-updates-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (83 commits)
iommu/vt-d: Really use upper context table when necessary
x86/vt-d: Fix documentation of DRHD
iommu/fsl: Really fix init section(s) content
iommu/io-pgtable-arm: Unmap and free table when overwriting with block
iommu/io-pgtable-arm: Move init-fn declarations to io-pgtable.h
iommu/msm: Use BUG_ON instead of if () BUG()
iommu/vt-d: Access iomem correctly
iommu/vt-d: Make two functions static
iommu/vt-d: Use BUG_ON instead of if () BUG()
iommu/vt-d: Return false instead of 0 in irq_remapping_cap()
iommu/amd: Use BUG_ON instead of if () BUG()
iommu/amd: Make a symbol static
iommu/amd: Simplify allocation in irq_remapping_alloc()
iommu/tegra-smmu: Parameterize number of TLB lines
iommu/tegra-smmu: Factor out tegra_smmu_set_pde()
iommu/tegra-smmu: Extract tegra_smmu_pte_get_use()
iommu/tegra-smmu: Use __GFP_ZERO to allocate zeroed pages
iommu/tegra-smmu: Remove PageReserved manipulation
iommu/tegra-smmu: Convert to use DMA API
iommu/tegra-smmu: smmu_flush_ptc() wants device addresses
...
Adds support for Tegra210, which allows the SMMU to be used on this new
SoC generation.
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Merge tag 'tegra-for-4.3-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
ARM: tegra: Memory controller updates for v4.3-rc1
Adds support for Tegra210, which allows the SMMU to be used on this new
SoC generation.
* tag 'tegra-for-4.3-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
memory: tegra: Add Tegra210 support
memory: tegra: Add support for a variable-size client ID bitfield
memory: tegra: Expose supported rates via debugfs
Signed-off-by: Olof Johansson <olof@lixom.net>
The number of TLB lines was increased from 16 on Tegra30 to 32 on
Tegra114 and later. Parameterize the value so that the initial default
can be set accordingly.
On Tegra30, initializing the value to 32 would effectively disable the
TLB and hence cause massive latencies for memory accesses translated
through the SMMU. This is especially noticeable for isochronuous clients
such as display, whose FIFOs would continuously underrun.
Fixes: 8918465163 ("memory: Add NVIDIA Tegra memory controller support")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Recent versions of the Tegra MC hardware extend the size of the client
ID bitfield in the MC_ERR_STATUS register by one bit. While one could
simply extend the bitfield for older hardware, that would allow data
from reserved bits into the driver code, which is generally a bad idea
on principle. So this patch instead passes in the client ID mask from
from the per-SoC MC data.
There's no MC support for T210 (yet), but when that support winds up
in the kernel, the appropriate soc->client_id_mask value for that chip
will be 0xff.
Based on an original patch by David Ung <davidu@nvidia.com>.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: David Ung <davidu@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Drivers should not be using __cpuc_* functions nor outer_cache_flush()
directly. This change partly cleans up tegra-smmu.c.
The only difference between cache handling of the tegra variants is
Denver, which omits the call to outer_cache_flush(). This is due to
Denver being an ARM64 CPU, and the ARM64 architecture does not provide
this function. (This, in itself, is a good reason why these should not
be used.)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[treding@nvidia.com: fix build failure on 64-bit ARM]
Signed-off-by: Thierry Reding <treding@nvidia.com>
There's a mixture of core_* and soc_* prefixes for variables storing
information related to the VDD_CORE rail. Choose one (soc_*) and use it
more consistently.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra210 uses a power management controller that is compatible with
earlier SoC generations but adds a couple of power partitions for new
hardware blocks.
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Pull ARM updates from Russell King:
"Bigger items included in this update are:
- A series of updates from Arnd for ARM randconfig build failures
- Updates from Dmitry for StrongARM SA-1100 to move IRQ handling to
drivers/irqchip/
- Move ARMs SP804 timer to drivers/clocksource/
- Perf updates from Mark Rutland in preparation to move the ARM perf
code into drivers/ so it can be shared with ARM64.
- MCPM updates from Nicolas
- Add support for taking platform serial number from DT
- Re-implement Keystone2 physical address space switch to conform to
architecture requirements
- Clean up ARMv7 LPAE code, which goes in hand with the Keystone2
changes.
- L2C cleanups to avoid unlocking caches if we're prevented by the
secure support to unlock.
- Avoid cleaning a potentially dirty cache containing stale data on
CPU initialisation
- Add ARM-only entry point for secondary startup (for machines that
can only call into a Thumb kernel in ARM mode). Same thing is also
done for the resume entry point.
- Provide arch_irqs_disabled via asm-generic
- Enlarge ARMv7M vector table
- Always use BFD linker for VDSO, as gold doesn't accept some of the
options we need.
- Fix an incorrect BSYM (for Thumb symbols) usage, and convert all
BSYM compiler macros to a "badr" (for branch address).
- Shut up compiler warnings provoked by our cmpxchg() implementation.
- Ensure bad xchg sizes fail to link"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (75 commits)
ARM: Fix build if CLKDEV_LOOKUP is not configured
ARM: fix new BSYM() usage introduced via for-arm-soc branch
ARM: 8383/1: nommu: avoid deprecated source register on mov
ARM: 8391/1: l2c: add options to overwrite prefetching behavior
ARM: 8390/1: irqflags: Get arch_irqs_disabled from asm-generic
ARM: 8387/1: arm/mm/dma-mapping.c: Add arm_coherent_dma_mmap
ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
ARM: 8384/1: VDSO: force use of BFD linker
ARM: 8385/1: VDSO: group link options
ARM: cmpxchg: avoid warnings from macro-ized cmpxchg() implementations
ARM: remove __bad_xchg definition
ARM: 8369/1: ARMv7M: define size of vector table for Vybrid
ARM: 8382/1: clocksource: make ARM_TIMER_SP804 depend on GENERIC_SCHED_CLOCK
ARM: 8366/1: move Dual-Timer SP804 driver to drivers/clocksource
ARM: 8365/1: introduce sp804_timer_disable and remove arm_timer.h inclusion
ARM: 8364/1: fix BE32 module loading
ARM: 8360/1: add secondary_startup_arm prototype in header file
ARM: 8359/1: correct secondary_startup_arm mode
ARM: proc-v7: sanitise and document registers around errata
ARM: proc-v7: clean up MIDR access
...
Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses
Conflicts:
arch/arm64/boot/dts/arm/juno-motherboard.dtsi
Trivial add/add conflict with our dt branch.
Resolution: take both sides.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Kevin Hilman:
"Some of these are for drivers/soc, where we're now putting
SoC-specific drivers these days. Some are for other driver subsystems
where we have received acks from the appropriate maintainers.
Some highlights:
- simple-mfd: document DT bindings and misc updates
- migrate mach-berlin to simple-mfd for clock, pinctrl and reset
- memory: support for Tegra132 SoC
- memory: introduce tegra EMC driver for scaling memory frequency
- misc. updates for ARM CCI and CCN busses"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
drivers: soc: sunxi: Introduce SoC driver to map SRAMs
arm-cci: Add aliases for PMU events
arm-cci: Add CCI-500 PMU support
arm-cci: Sanitise CCI400 PMU driver specific code
arm-cci: Abstract handling for CCI events
arm-cci: Abstract out the PMU counter details
arm-cci: Cleanup PMU driver code
arm-cci: Do not enable CCI-400 PMU by default
firmware: qcom: scm: Add HDCP Support
ARM: berlin: add an ADC node for the BG2Q
ARM: berlin: remove useless chip and system ctrl compatibles
clk: berlin: drop direct of_iomap of nodes reg property
ARM: berlin: move BG2Q clock node
ARM: berlin: move BG2CD clock node
ARM: berlin: move BG2 clock node
clk: berlin: prepare simple-mfd conversion
pinctrl: berlin: drop SoC stub provided regmap
ARM: berlin: move pinctrl to simple-mfd nodes
pinctrl: berlin: prepare to use regmap provided by syscon
reset: berlin: drop arch_initcall initialization
...
Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:
- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC
Conflicts:
arch/arm/mach-socfpga/core.h
Trivial remove/remove conflict with our cleanup branch.
Resolution: remove both sides
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform support updates from Kevin Hilman:
"Our SoC branch usually contains expanded support for new SoCs and
other core platform code. Some highlights from this round:
- sunxi: SMP support for A23 SoC
- socpga: big-endian support
- pxa: conversion to common clock framework
- bcm: SMP support for BCM63138
- imx: support new I.MX7D SoC
- zte: basic support for ZX296702 SoC"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
ARM: zx: Add basic defconfig support for ZX296702
ARM: dts: zx: add an initial zx296702 dts and doc
clk: zx: add clock support to zx296702
dt-bindings: Add #defines for ZTE ZX296702 clocks
ARM: socfpga: fix build error due to secondary_startup
MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
ARM: ep93xx: simone: support for SPI-based MMC/SD cards
MAINTAINERS: update Shawn's email to use kernel.org one
ARM: socfpga: support suspend to ram
ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
ARM: EXYNOS: register power domain driver from core_initcall
ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
ARM: SAMSUNG: Constify platform_device_id
ARM: EXYNOS: Constify irq_domain_ops
ARM: EXYNOS: add coupled cpuidle support for Exynos3250
ARM: EXYNOS: add exynos_get_boot_addr() helper
ARM: EXYNOS: add exynos_set_boot_addr() helper
ARM: EXYNOS: make exynos_core_restart() less verbose
ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
...
- Add new SoC i.MX7D support, which integrates two Cortex-A7 and one
Cortex-M4 cores.
- Support suspend from IRAM on i.MX53, so that DDR pins can be set to
high impedance for more power saving during suspend.
- Move i.MX clock drivers from arch/arm/mach-imx to drivers/clk/imx.
- Move i.MX GPT timer driver from arch/arm/mach-imx into
drivers/clocksource.
- A couple of clock driver update for VF610 and i.MX6Q.
- A few random code correction and improvement.
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Merge tag 'imx-soc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
The i.MX SoC updates for 4.2:
- Add new SoC i.MX7D support, which integrates two Cortex-A7 and one
Cortex-M4 cores.
- Support suspend from IRAM on i.MX53, so that DDR pins can be set to
high impedance for more power saving during suspend.
- Move i.MX clock drivers from arch/arm/mach-imx to drivers/clk/imx.
- Move i.MX GPT timer driver from arch/arm/mach-imx into
drivers/clocksource.
- A couple of clock driver update for VF610 and i.MX6Q.
- A few random code correction and improvement.
* tag 'imx-soc-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (44 commits)
ARM: imx: imx7d requires anatop
clocksource: timer-imx-gpt: remove include of <asm/mach/time.h>
ARM: imx: move timer driver into drivers/clocksource
ARM: imx: remove platform headers from timer driver
ARM: imx: provide gpt device specific irq functions
ARM: imx: get rid of variable timer_base
ARM: imx: define gpt register offset per device type
ARM: imx: move clock event variables into imx_timer
ARM: imx: set up .set_next_event hook via imx_gpt_data
ARM: imx: setup tctl register in device specific function
ARM: imx: initialize gpt device type for DT boot
ARM: imx: define an enum for gpt timer device type
ARM: imx: move timer resources into a structure
ARM: imx: use relaxed IO accessor in timer driver
ARM: imx: make imx51/3 suspend optional
ARM: clk-imx6q: refine sata's parent
ARM: imx: clk-v610: Add clock for I2C2 and I2C3
ARM: mach-imx: iomux-imx31: Use DECLARE_BITMAP
ARM: imx: add imx7d clk tree support
ARM: clk: imx: update pllv3 to support imx7
...
Conflicts:
arch/arm/mach-imx/Kconfig
Define an enum for gpt timer device type in include/soc/imx/timer.h to
tell the gpt block differences among SoCs. Update non-DT users (clock
drivers) to pass the device type.
As we now have include/soc/imx/timer.h, the declaration of
mxc_timer_init() is moved into there as the best fit.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
The revision definitions and declarations are widely used by clock
drivers. As a step of moving clock drivers out of arch/arm/mach-imx,
let's create header include/soc/imx/revision.h to accommodate them.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
include/soc/at91/at91rm9200_sdramc.h is replaced by
include/linux/mfd/syscon/atmel-smc.h as this is actually a syscon device.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
PWER settings logically belongs neither to GPIO nor to system IRQ code.
Add special functions to handle PWER (for GPIO and for system IRQs)
from platform code.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The RAM code is used by the memory and external memory controllers to
determine which set of timings to use for memory frequency scaling.
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Merge tag 'tegra-for-4.2-ramcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Merge "ARM: tegra: RAM code access for v4.2-rc1" from Thierry Reding:
The RAM code is used by the memory and external memory controllers to
determine which set of timings to use for memory frequency scaling.
* tag 'tegra-for-4.2-ramcode' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: fuse: Add RAM code reader helper
of: Document long-ram-code property in nvidia,tegra20-apbmisc
Implements functionality needed to change the rate of the memory bus
clock.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The EMC driver needs to know the number of external memory devices and
also needs to update the EMEM configuration based on the new rate of the
memory bus.
To know how to update the EMEM config, looks up the values of the burst
regs in the DT, for a given timing.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The pmc driver was previously exporting tegra_pmc_restart, which was
assigned to machine_desc.init_machine, taking precedence over the
restart handlers registered through register_restart_handler().
Signed-off-by: David Riley <davidriley@chromium.org>
[tomeu.vizoso@collabora.com: Rebased]
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
[treding@nvidia.com: minor cleanups]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Needed for the EMC and MC drivers to know what timings from the DT to
use.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Provide clients and swgroups files in debugfs. These files show for
which clients IOMMU translation is enabled and which ASID is associated
with each SWGROUP.
Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Subsequent patches will add debugfs files that print the status of the
SWGROUPs. Add a new names field and complement the SoC tables with the
names of the individual SWGROUPs.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The DDRSDR controller fails miserably to put LPDDR1 memories in
self-refresh. Force the controller to think it has DDR2 memories
during the self-refresh period, as the DDR2 self-refresh spec is
equivalent to LPDDR1, and is correctly implemented in the
controller.
Assume that the second controller has the same fault, but that is
untested.
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Tegra SoCs with 64-bit ARM support don't currently support deep CPU
low-power states in mainline Linux. When this support is added in the
future, it will probably look rather different from the existing
32-bit ARM support, since the ARM64 maintainers' strong preference is
to use PSCI to implement it.
So, for the time being, prevent the CPU suspend-related code and data
in the Tegra PMC driver from compiling on ARM64.
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Allen Martin <amartin@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The at91 cleanups changed a lot of files, this merges in the
latest cleanups to resolve the conflicts
Conflicts:
arch/arm/mach-at91/at91sam9260.c
arch/arm/mach-at91/at91sam9261.c
arch/arm/mach-at91/at91sam9263.c
arch/arm/mach-at91/clock.c
arch/arm/mach-at91/clock.h
drivers/rtc/Kconfig
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The memory controller on NVIDIA Tegra exposes various knobs that can be
used to tune the behaviour of the clients attached to it.
Currently this driver sets up the latency allowance registers to the HW
defaults. Eventually an API should be exported by this driver (via a
custom API or a generic subsystem) to allow clients to register latency
requirements.
This driver also registers an IOMMU (SMMU) that's implemented by the
memory controller. It is supported on Tegra30, Tegra114 and Tegra124
currently. Tegra20 has a GART instead.
The Tegra SMMU operates on memory clients and SWGROUPs. A memory client
is a unidirectional, special-purpose DMA master. A SWGROUP represents a
set of memory clients that form a logical functional unit corresponding
to a single device. Typically a device has two clients: one client for
read transactions and one client for write transactions, but there are
also devices that have only read clients, but many of them (such as the
display controllers).
Because there is no 1:1 relationship between memory clients and devices
the driver keeps a table of memory clients and the SWGROUPs that they
belong to per SoC. Note that this is an exception and due to the fact
that the SMMU is tightly integrated with the rest of the Tegra SoC. The
use of these tables is discouraged in drivers for generic IOMMU devices
such as the ARM SMMU because the same IOMMU could be used in any number
of SoCs and keeping such tables for each SoC would not scale.
Acked-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Move the (DDR) SDRAM controller headers to include/soc/at91 to remove the
dependency on mach/ headers from the at91-reset driver.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit converts the PMC support code to a platform driver. Because
the boot process needs to call into this driver very early, also set up
a minimal environment via an early initcall.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Rather than rely on explicit initialization order called from SoC setup
code, use a plain initcall and rely on initcall ordering to take care of
dependencies.
This driver exposes some functionality (querying the chip ID) needed at
very early stages of the boot process. An early initcall is good enough
provided that some of the dependencies are deferred to later stages. To
make sure any abuses are easily caught, output a warning message if the
chip ID is queried while it can't be read yet.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Subsequent patches will move some of the initialization code from SoC
setup code to regular initcalls. To prevent breakage on other SoCs in
multi-platform builds, these initcalls need to check that they indeed
run on Tegra.
Signed-off-by: Thierry Reding <treding@nvidia.com>
The Tegra20 fuse driver is the only user of tegra_apb_readl_using_dma().
Therefore we can simply the code by incorporating the APB DMA handling into
the driver directly. tegra_apb_writel_using_dma() is dropped because there
are no users.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Olof Johansson