Commit graph

11005 commits

Author SHA1 Message Date
Julien Thierry
17ce302f31 arm64: Fix interrupt tracing in the presence of NMIs
In the presence of any form of instrumentation, nmi_enter() should be
done before calling any traceable code and any instrumentation code.

Currently, nmi_enter() is done in handle_domain_nmi(), which is much
too late as instrumentation code might get called before. Move the
nmi_enter/exit() calls to the arch IRQ vector handler.

On arm64, it is not possible to know if the IRQ vector handler was
called because of an NMI before acknowledging the interrupt. However, It
is possible to know whether normal interrupts could be taken in the
interrupted context (i.e. if taking an NMI in that context could
introduce a potential race condition).

When interrupting a context with IRQs disabled, call nmi_enter() as soon
as possible. In contexts with IRQs enabled, defer this to the interrupt
controller, which is in a better position to know if an interrupt taken
is an NMI.

Fixes: bc3c03ccb4 ("arm64: Enable the support of pseudo-NMIs")
Cc: <stable@vger.kernel.org> # 5.1.x-
Cc: Will Deacon <will.deacon@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-21 15:49:58 +01:00
Julien Thierry
f57065782f arm64: irqflags: Add condition flags to inline asm clobber list
Some of the inline assembly instruction use the condition flags and need
to include "cc" in the clobber list.

Fixes: 4a503217ce ("arm64: irqflags: Use ICC_PMR_EL1 for interrupt masking")
Cc: <stable@vger.kernel.org> # 5.1.x-
Suggested-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-21 15:49:30 +01:00
Vidya Sagar
a586c88eab arm64: tegra: Enable PCIe slots in P2972-0000 board
Enable PCIe controller nodes to enable respective PCIe slots on
P2972-0000 board. Following is the ownership of slots by different
PCIe controllers.
Controller-0 : M.2 Key-M slot
Controller-1 : On-board Marvell eSATA controller
Controller-3 : M.2 Key-E slot

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-21 16:06:00 +02:00
Vidya Sagar
2602c32f15 arm64: tegra: Add P2U and PCIe controller nodes to Tegra194 DT
Add P2U (PIPE to UPHY) and PCIe controller nodes to device tree.
The Tegra194 SoC contains six PCIe controllers and twenty P2U instances
grouped into two different PHY bricks namely High-Speed IO (HSIO-12 P2Us)
and NVIDIA High Speed (NVHS-8 P2Us) respectively.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-21 16:04:53 +02:00
Manikanta Maddireddy
871be845df arm64: tegra: Add PEX DPD states as pinctrl properties
Add PEX deep power down states as pinctrl properties to set in PCIe driver.
In Tegra210, BIAS pads are not in power down mode when clamps are applied.
To set the pads in DPD, pass the PEX DPD states as pinctrl properties to
PCIe driver.

Signed-off-by: Manikanta Maddireddy <mmaddireddy@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-21 16:04:52 +02:00
Sameer Pujar
9a182db457 arm64: tegra: Enable ACONNECT, ADMA and AGIC
Enable ACONNECT, ADMA and AGIC devices on Jetson TX2 and Jetson AGX
Xavier.

Verified driver probe path and devices get registered fine.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-21 16:04:52 +02:00
Sameer Pujar
5d2249dda0 arm64: tegra: Add ACONNECT, ADMA and AGIC nodes
Add device tree nodes for the ACONNECT, ADMA and AGIC devices on
Tegra186 and Tegra194.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-21 16:04:36 +02:00
Ben Ho
e526c9bc11 arm64: dts: Add Mediatek SoC MT8183 and evaluation board dts and Makefile
Add basic chip support for Mediatek 8183, include
uart node with correct uart clocks, pwrap device

Add clock controller nodes, include topckgen, infracfg,
apmixedsys and subsystem.

Signed-off-by: Ben Ho <Ben.Ho@mediatek.com>
Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Signed-off-by: Seiya Wang <seiya.wang@mediatek.com>
Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2019-06-21 14:31:06 +02:00
Julien Thierry
19c36b185a arm64: irqflags: Pass flags as readonly operand to restore instruction
Flags are only read by the instructions doing the irqflags restore
operation. Pass the operand as read only to the asm inline instead of
read-write.

Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@ar.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-21 11:19:16 +01:00
Julien Thierry
9034f62515 arm64: Do not enable IRQs for ct_user_exit
For el0_dbg and el0_error, DAIF bits get explicitly cleared before
calling ct_user_exit.

When context tracking is disabled, DAIF gets set (almost) immediately
after. When context tracking is enabled, among the first things done
is disabling IRQs.

What is actually needed is:
- PSR.D = 0 so the system can be debugged (should be already the case)
- PSR.A = 0 so async error can be handled during context tracking

Do not clear PSR.I in those two locations.

Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: James Morse <james.morse@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-21 11:19:12 +01:00
Christian Brauner
d68dbb0c9a
arch: handle arches who do not yet define clone3
This cleanly handles arches who do not yet define clone3.

clone3() was initially placed under __ARCH_WANT_SYS_CLONE under the
assumption that this would cleanly handle all architectures. It does
not.
Architectures such as nios2 or h8300 simply take the asm-generic syscall
definitions and generate their syscall table from it. Since they don't
define __ARCH_WANT_SYS_CLONE the build would fail complaining about
sys_clone3 missing. The reason this doesn't happen for legacy clone is
that nios2 and h8300 provide assembly stubs for sys_clone. This seems to
be done for architectural reasons.

The build failures for nios2 and h8300 were caught int -next luckily.
The solution is to define __ARCH_WANT_SYS_CLONE3 that architectures can
add. Additionally, we need a cond_syscall(clone3) for architectures such
as nios2 or h8300 that generate their syscall table in the way I
explained above.

Fixes: 8f3220a806 ("arch: wire-up clone3() syscall")
Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Adrian Reber <adrian@lisas.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
2019-06-21 01:54:53 +02:00
Linus Torvalds
b3e978337b Fixes for ARM and x86, plus selftest patches and nicer structs
for nested state save/restore.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "Fixes for ARM and x86, plus selftest patches and nicer structs for
  nested state save/restore"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: nVMX: reorganize initial steps of vmx_set_nested_state
  KVM: arm/arm64: Fix emulated ptimer irq injection
  tests: kvm: Check for a kernel warning
  kvm: tests: Sort tests in the Makefile alphabetically
  KVM: x86/mmu: Allocate PAE root array when using SVM's 32-bit NPT
  KVM: x86: Modify struct kvm_nested_state to have explicit fields for data
  KVM: fix typo in documentation
  KVM: nVMX: use correct clean fields when copying from eVMCS
  KVM: arm/arm64: vgic: Fix kvm_device leak in vgic_its_destroy
  KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
  KVM: arm64: Implement vq_present() as a macro
2019-06-20 13:50:37 -07:00
Linus Torvalds
e929387449 arm64 fixes for -rc6
- Fix use of #include in UAPI headers for compatability with musl libc
 
 - Update email addresses in MAINTAINERS
 
 - Fix initialisation of pgd_cache due to name collision with weak symbol
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "This is mainly a couple of email address updates to MAINTAINERS, but
  we've also fixed a UAPI build issue with musl libc and an accidental
  double-initialisation of our pgd_cache due to a naming conflict with a
  weak symbol.

  There are a couple of outstanding issues that have been reported, but
  it doesn't look like they're new and we're still a long way off from
  fully debugging them.

  Summary:

   - Fix use of #include in UAPI headers for compatability with musl libc

   - Update email addresses in MAINTAINERS

   - Fix initialisation of pgd_cache due to name collision with weak symbol"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/mm: don't initialize pgd_cache twice
  MAINTAINERS: Update my email address
  arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
  arm64: ssbd: explicitly depend on <linux/prctl.h>
  MAINTAINERS: Update my email address to use @kernel.org
2019-06-20 12:04:57 -07:00
Thor Thayer
109d789922 arm64: dts: stratix10: Add SDMMC EDAC node
Add the Stratix10 SDMMC EDAC node.

Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: James Morse <james.morse@arm.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: mchehab@kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Link: https://lkml.kernel.org/r/1556030197-24534-5-git-send-email-thor.thayer@linux.intel.com
2019-06-20 11:44:36 -07:00
Thor Thayer
3c4fcb89db arm64: dts: stratix10: Add OCRAM EDAC node
Add the OCRAM ECC node with Stratix10 compatible string.

Signed-off-by: Thor Thayer <thor.thayer@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: James Morse <james.morse@arm.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: mchehab@kernel.org
Cc: Rob Herring <robh+dt@kernel.org>
Link: https://lkml.kernel.org/r/1556030197-24534-3-git-send-email-thor.thayer@linux.intel.com
2019-06-20 11:44:36 -07:00
Paolo Bonzini
b21e31b253 KVM/arm fixes for 5.2, take #2
- SVE cleanup killing a warning with ancient GCC versions
 - Don't report non-existent system registers to userspace
 - Fix memory leak when freeing the vgic ITS
 - Properly lower the interrupt on the emulated physical timer
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Merge tag 'kvmarm-fixes-for-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm fixes for 5.2, take #2

- SVE cleanup killing a warning with ancient GCC versions
- Don't report non-existent system registers to userspace
- Fix memory leak when freeing the vgic ITS
- Properly lower the interrupt on the emulated physical timer
2019-06-20 18:24:18 +02:00
Vidya Sagar
01d6fb565b arm64: defconfig: Add Tegra194 PCIe driver
Add PCIe host controller driver for DesignWare core based PCIe
controller IP present in Tegra194.

Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 13:02:27 +02:00
Leo Yan
b04832ed1f arm64: dts: sc9860: Update coresight DT bindings
CoreSight DT bindings have been updated, thus the old compatible strings
are obsolete and the drivers will report warning if DTS uses these
obsolete strings.

This patch switches to the new bindings for CoreSight dynamic funnel,
so can dismiss warning during initialisation.

Change-Id: Ifcc4394589f1307e92b113ebeda098b461fe085a
Cc: Chunyan Zhang <zhang.chunyan@linaro.org>
Cc: Orson Zhai <orsonzhai@gmail.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.lyra@gmail.com>
2019-06-20 18:44:54 +08:00
Leo Yan
b8b89a8407 arm64: dts: sc9836: Update coresight DT bindings
CoreSight DT bindings have been updated, thus the old compatible strings
are obsolete and the drivers will report warning if DTS uses these
obsolete strings.

This patch switches to the new bindings for CoreSight dynamic funnel,
so can dismiss warning during initialisation.

Change-Id: I2f7072bacf76aac0bb2fc891d5d71352d99e6ea8
Cc: Chunyan Zhang <zhang.chunyan@linaro.org>
Cc: Orson Zhai <orsonzhai@gmail.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Chunyan Zhang <zhang.lyra@gmail.com>
2019-06-20 18:43:45 +08:00
Thierry Reding
541d7c4406 arm64: tegra: Sort device tree nodes alphabetically
Device tree nodes without unit-address are to be sorted alphabetically.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 11:33:05 +02:00
Jon Hunter
434e8aedea arm64: tegra: Fix Jetson Nano GPU regulator
There are a few issues with the GPU regulator defined for Jetson Nano
which are:

1. The GPU regulator is a PWM based regulator and not a fixed voltage
   regulator.
2. The output voltages for the GPU regulator are not correct.
3. The regulator enable ramp delay is too short for the regulator and
   needs to be increased. 2ms should be sufficient.
4. This is the same regulator used on Jetson TX1 and so make the ramp
   delay and settling time the same as Jetson TX1.

Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: 6772cd0eac ("arm64: tegra: Add NVIDIA Jetson Nano Developer Kit support")
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 11:18:30 +02:00
Jon Hunter
ece6031ece arm64: tegra: Update Jetson TX1 GPU regulator timings
The GPU regulator enable ramp delay for Jetson TX1 is set to 1ms which
not sufficient because the enable ramp delay has been measured to be
greater than 1ms. Furthermore, the downstream kernels released by NVIDIA
for Jetson TX1 are using a enable ramp delay 2ms and a settling delay of
160us. Update the GPU regulator enable ramp delay for Jetson TX1 to be
2ms and add a settling delay of 160us.

Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: 5e6b9a89af ("arm64: tegra: Add VDD_GPU regulator to Jetson TX1")
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 11:17:03 +02:00
Jon Hunter
ba24eee668 arm64: tegra: Fix AGIC register range
The Tegra AGIC interrupt controller is an ARM GIC400 interrupt
controller. Per the ARM GIC device-tree binding, the first address
region is for the GIC distributor registers and the second address
region is for the GIC CPU interface registers. The address space for
the distributor registers is 4kB, but currently this is incorrectly
defined as 8kB for the Tegra AGIC and overlaps with the CPU interface
registers. Correct the address space for the distributor to be 4kB.

Cc: stable@vger.kernel.org
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: bcdbde4335 ("arm64: tegra: Add AGIC node for Tegra210")
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 11:17:03 +02:00
Nicolin Chen
08c7c74b09 arm64: tegra: Add INA3221 channel info for Jetson TX2
There are four INA3221 chips on the Jetson TX2 (p3310 + p2771).
And each INA3221 chip has three input channels to monitor power.

So this patch adds these 12 channels to the DT of Jetson TX2, by
following the DT binding of INA3221 and official documents from
https://developer.nvidia.com/embedded/downloads

tegra186-p3310:
https://developer.nvidia.com/embedded/dlc/jetson-tx2-series-modules-oem-product-design-guide

tegra186-p2771-0000:
http://developer.nvidia.com/embedded/dlc/jetson-tx1-tx2-developer-kit-carrier-board-spec-20180618

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 11:17:02 +02:00
Thierry Reding
d87764daed arm64: tegra: Enable PWM on Jetson Nano
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-20 11:17:02 +02:00
Jorge Ramirez-Ortiz
2410fd450c arm64: dts: qcom: qcs404-evb: fix vdd_apc supply
The invalid definition in the supply causes the Qualcomm's EVB-1000
and EVB-4000 not to boot.

Fix the boot issue by correctly defining the supply: vdd_s3 (namely
"vdd_apc") is actually connected to vph_pwr.

Reported-by: Niklas Cassel <niklas.cassel@linaro.org>
Tested-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>
2019-06-19 23:50:52 -05:00
Martin Blumenstingl
50b617a618 arm64: dts: meson: g12a: x96-max: add the Ethernet PHY interrupt line
X96 Max has the PHY reset and interrupt lines are identical to the
Odroid-N2:
- GPIOZ_14 is the interrupt on X96 Max
- GPIOZ_15 is the reset line on X96 Max

Add GPIOZ_14 as PHY interrupt line on the X96 Max so we don't have to
poll for the PHY status.

Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:37:04 -07:00
Martin Blumenstingl
98ba71c94e arm64: dts: meson: g12b: odroid-n2: add the Ethernet PHY interrupt line
The interrupt line of the RTL8211F PHY is routed to the GPIOZ_14 pad.
Describe this in the device tree so the PHY framework doesn't have to
poll the PHY status.

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:37:03 -07:00
Martin Blumenstingl
658e4129bb arm64: dts: meson: g12b: odroid-n2: add the Ethernet PHY reset line
The reset line of the RTL8211F PHY is routed to the GPIOZ_15 pad.
Describe this in the device tree so the PHY framework can bring the PHY
into a known state when initializing it. GPIOZ_15 doesn't support
driving the output HIGH (to take the PHY out of reset, only output LOW
to reset the PHY is supported). The datasheet states it's an "3.3V input
tolerant open drain (OD) output pin". Instead there's a pull-up resistor
on the board to take the PHY out of reset. The GPIO itself will be set
to INPUT mode to take the PHY out of reset and LOW to reset the PHY,
which is achieved with the flags (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN).

Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:34:14 -07:00
Martin Blumenstingl
f29cabf240 arm64: dts: meson: use the generic Ethernet PHY reset GPIO bindings
The snps,reset-gpio bindings are deprecated in favour of the generic
"Ethernet PHY reset" bindings.

Replace snps,reset-gpio from the &ethmac node with reset-gpios in the
ethernet-phy node. The old snps,reset-active-low property is now encoded
directly as GPIO flag inside the reset-gpios property.

snps,reset-delays-us is converted to reset-assert-us and
reset-deassert-us. reset-assert-us is the second cell from
snps,reset-delays-us while reset-deassert-us was the third cell.

Instead of blindly copying the old values (which seems strange since
they gave the PHY one second to come out of reset) over this also
updates the delays based on the datasheets:
- the Realtek RTL8211F PHY needs a 10ms assert delay (the datasheet
  mentions: "For a complete PHY reset, this pin must be asserted low
  for at least 10ms") and a 30ms deassert delay (the datasheet
  mentions: "Wait for a further 30ms (for internal circuits settling
  time) before accessing the PHY register". This applies to the
  following boards: GXBB NanoPi K2, GXBB Odroid-C2, GXBB Vega S95
  variants, GXBB Wetek variants, GXL P230, GXM Khadas VIM2, GXM Nexbox
  A1, GXM Q200, GXM RBox Pro boards.
- the ICPlus IP101GR PHY needs a 10ms assert delay (the datasheet
  mentions: "Trst | Reset period | 10ms") and a deassert delay of 10ms
  as well (the datasheet mentions: "Tclk_MII_rdy | MII/RMII clock
  output ready after reset released | 10ms"). This applies to the GXBB
  Nexbox A95X board.
- the Micrel KSZ9031 seems to require a 100us delay but use the same
  (seemingly safe) values from RTL8211F due to lack of a board to verify
  this. This applies to the GXBB P200 board.

The GXBB P201 board is left out from this conversion because it doesn't
have a dedicated PHY node (because it's not clear which PHY is used on
that board).

Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:34:14 -07:00
Martin Blumenstingl
ed5e8f6891 arm64: dts: meson: g12a: x96-max: fix the Ethernet PHY reset line
The Odroid-N2 schematics show that the following pins are used for the
reset and interrupt lines:
- GPIOZ_14 is the PHY interrupt line
- GPIOZ_15 is the PHY reset line

The GPIOZ_14 and GPIOZ_15 pins are special. The datasheet describes that
they are "3.3V input tolerant open drain (OD) output pins". This means
the GPIO controller can drive the output LOW to reset the PHY. To
release the reset it can only switch the pin to input mode. The output
cannot be driven HIGH for these pins.
This requires configuring the reset line as GPIO_OPEN_DRAIN because
otherwise the PHY will be stuck in "reset" state (because driving the
pin HIGH seems to result in the same signal as driving it LOW).

The reset line works together with a pull-up resistor (R143 in the
Odroid-N2 schematics). The SoC can drive GPIOZ_14 LOW to assert the PHY
reset. However, since the SoC can't drive the pin HIGH (to release the
reset) we switch the mode to INPUT and let the pull-up resistor take
care of driving the reset line HIGH.

Switch to GPIOZ_15 for the PHY reset line instead of using GPIOZ_14
(which actually is the interrupt line).
Move from the "snps" specific resets to the MDIO framework's
reset-gpios because only the latter honors the GPIO flags.
Use the GPIO flags (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN) to match with
the pull-up resistor because this will:
- drive the output LOW to reset the PHY (= active low)
- switch the pin to INPUT mode so the pull-up will take the PHY out of
  reset

Fixes: 51d116557b2044 ("arm64: dts: meson-g12a-x96-max: Add Gigabit Ethernet Support")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:34:09 -07:00
Jerome Brunet
9a3f37143f arm64: dts: meson: g12a: sort sdio nodes correctly
Fix sdio node order in the soc device tree

Fixes: a1737347250e ("arm64: dts: meson: g12a: add SDIO controller")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-19 20:28:08 -07:00
Olof Johansson
4ed7e4e578 Texas Instruments K3 SoC family changes for 5.3
- Add support for the new J721e SoC, includes basic peripherals needed for
   booting up the device
 - New peripheral support added for AM654x:
   * TI SCI irqchip
   * GPIO
   * MCU SRAM
   * R5Fs
   * MSMC RAM
   * SERDES and PCIe
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Merge tag 'ti-k3-soc-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux into arm/dt

Texas Instruments K3 SoC family changes for 5.3

- Add support for the new J721e SoC, includes basic peripherals needed for
  booting up the device
- New peripheral support added for AM654x:
  * TI SCI irqchip
  * GPIO
  * MCU SRAM
  * R5Fs
  * MSMC RAM
  * SERDES and PCIe

* tag 'ti-k3-soc-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux: (26 commits)
  arm64: dts: ti: k3-j721e: Add the MCU SRAM node
  arm64: dts: ti: k3-j721e: Add interrupt controllers in wakeup domain
  arm64: dts: ti: k3-j721e: Add interrupt controllers in main domain
  arm64: dts: ti: k3-j721e-main: Add Main NavSS Interrupt controller node
  arm64: defconfig: Enable TI's J721E SoC platform
  arm64: dts: ti: Add support for J721E Common Processor Board
  soc: ti: Add Support for J721E SoC config option
  arm64: dts: ti: Add Support for J721E SoC
  dt-bindings: serial: 8250_omap: Add compatible for J721E UART controller
  dt-bindings: arm: ti: Add bindings for J721E SoC
  arm64: dts: ti: am654-base-board: Disable SERDES and PCIe
  arm64: dts: k3-am6: Add PCIe Endpoint DT node
  arm64: dts: k3-am6: Add PCIe Root Complex DT node
  arm64: dts: k3-am6: Add SERDES DT node
  arm64: dts: k3-am6: Add mux-controller DT node required for muxing SERDES
  arm64: dts: k3-am6: Add "socionext,synquacer-pre-its" property to gic_its
  arm64: dts: ti: k3-am65: Add MSMC RAM ranges in interconnect node
  arm64: dts: ti: k3-am65: Add R5F ranges in interconnect nodes
  arm64: dts: ti: k3-am65-mcu: Add the MCU RAM node
  arm64: dts: ti: k3-am65: Add MCU SRAM ranges in interconnect nodes
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 09:03:38 -07:00
Olof Johansson
50f5ef466d SoCFPGA DTS updates for v5.3
- Use the new "altr,socfpga-stmmac-a10-s10" for the EMAC controllers on
   Arria10/Stratix10
 - Add the ltc2497 i2c entry on the Arria10 devkit
 - Add the EMAC OCP reset property on the Arria10
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Merge tag 'socfpga_dts_updates_for_v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/dt

SoCFPGA DTS updates for v5.3
- Use the new "altr,socfpga-stmmac-a10-s10" for the EMAC controllers on
  Arria10/Stratix10
- Add the ltc2497 i2c entry on the Arria10 devkit
- Add the EMAC OCP reset property on the Arria10

* tag 'socfpga_dts_updates_for_v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  ARM: dts: arria10: Add EMAC OCP reset property
  ARM: dts: socfpga: add ltc2497 on arria10 devkit
  arm64: dts: stratix10: use the "altr,socfpga-stmmac-a10-s10" binding
  ARM: dts: socfpga: use the "altr,socfpga-stmmac-a10-s10" binding

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 09:00:58 -07:00
Thierry Reding
e57cf057c5 arm64: tegra: Enable CPU sleep on Jetson Nano
Jetson Nano implements CPU sleep via PSCI, much like any of the other
Tegra X1 platforms. Enable the sleep states to allow the CPU to go into
lower power states when idle.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-19 17:51:43 +02:00
Thierry Reding
8300a70e65 arm64: tegra: Add ID EEPROMs on Jetson Nano
The Jetson Nano has two ID EEPROMs, one for the module and another for
the carrier board. Add both to the device tree so that they can be read
from at runtime.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-19 17:51:42 +02:00
Thierry Reding
5205abd283 arm64: tegra: Add ID EEPROM for Jetson TX2 Developer Kit
There is an ID EEPROM on the Jetson TX2 carrier board, part of the
Jetson TX2 Developer Kit, that exposes information that can be used to
identify the carrier board. Add the device tree node so that operating
systems can access this EEPROM.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-19 17:51:40 +02:00
Thierry Reding
a4ff413b71 arm64: tegra: Add ID EEPROM for Jetson TX2 module
There is an ID EEPROM in the Jetson TX2 module that stores various bits
of information to indentify the module. Add the device tree node so that
operating systems can access this EEPROM.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-19 17:51:37 +02:00
Thierry Reding
3492d0a155 arm64: tegra: Add ID EEPROM for Jetson TX1 Developer Kit
There is an ID EEPROM on the Jetson TX1 carrier board, part of the
Jetson TX1 Developer Kit, that exposes information that can be used to
identify the carrier board. Add the device tree node so that operating
systems can access this EEPROM.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-19 17:51:34 +02:00
Thierry Reding
a5b6b67364 arm64: tegra: Add ID EEPROM for Jetson TX1 module
There is an ID EEPROM in the Jetson TX1 module that stores various bits
of information to indentify the module. Add the device tree node so that
operating systems can access this EEPROM.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-19 17:50:57 +02:00
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00
Thomas Gleixner
d690ec5371 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452
Based on 1 normalized pattern(s):

  this program is free software void you can redistribute it and or
  modify it under the terms of the gnu general public license version
  2 as published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http void www gnu
  org licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 1 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081201.003433009@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:08 +02:00
Thomas Gleixner
caab277b1d treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed in the hope that it will be useful but without any
  warranty without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 503 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:07 +02:00
Wanglai Shi
9500ff14c4 arm64: dts: hi3660: Add CoreSight support
This patch adds DT bindings for the CoreSight trace components
on hi3660, which is used by 96boards Hikey960.

Signed-off-by: Wanglai Shi <shiwanglai@hisilicon.com>
Reviewed-and-tested-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-06-19 15:43:31 +01:00
Leo Yan
b6f7cd7fae arm64: dts: hi6220: Update coresight DT bindings
CoreSight DT bindings have been updated, thus the old compatible strings
are obsolete and the drivers will report warning if DTS uses these
obsolete strings.

This patch switches to the new bindings for CoreSight dynamic funnel and
static replicator, so can dismiss warning during initialisation.

Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-06-19 15:32:25 +01:00
Fabrizio Castro
f6130381e2 arm64: dts: renesas: hihope-common: Remove "label" from LEDs
Remove "label" properties from the LEDs device tree nodes, since
we don't have nice labels on the PCB.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-19 16:32:13 +02:00
Olof Johansson
c914767610 i.MX fixes for 5.2, round 2:
- A fix on LS1028A device tree CPU state to get CPU idle work.
  - Enable FSL_EDMA driver support in defconfig to fix a indefinite
    deferring probe on Layerscape platforms.
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Merge tag 'imx-fixes-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 5.2, round 2:
 - A fix on LS1028A device tree CPU state to get CPU idle work.
 - Enable FSL_EDMA driver support in defconfig to fix a indefinite
   deferring probe on Layerscape platforms.

* tag 'imx-fixes-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: defconfig: Enable FSL_EDMA driver
  arm64: dts: ls1028a: Fix CPU idle fail.

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 07:26:01 -07:00
Marcin Juszkiewicz
801dd05bbf arm64 defconfig: enable Mellanox cards
Mellanox cards are present in several AArch64 servers.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 07:22:08 -07:00
Marcin Juszkiewicz
427e54a22d arm64 defconfig: enable MPT3 SAS and BNX2X drivers
ThunderX2 server requires both to provide storage and network.

05:00.0 Ethernet controller [0200]: Broadcom Limited BCM57840 NetXtreme II 10 Gigabit Ethernet [14e4:16a1] (rev 11)
05:00.1 Ethernet controller [0200]: Broadcom Limited BCM57840 NetXtreme II 10 Gigabit Ethernet [14e4:16a1] (rev 11)
8d:00.0 Serial Attached SCSI controller [0107]: LSI Logic / Symbios Logic SAS3224 PCI-Express Fusion-MPT SAS-3 [1000:00c4] (rev 01)

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 07:21:55 -07:00
Neil Armstrong
d547bcf373 arm64: defconfig: enable Lima driver
A bunch of arm64 boards can now use the Lima driver, let's enable it
in defconfig, it will be useful to have it enabled for KernelCI
boot and runtime testing.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 07:12:43 -07:00
Tomeu Vizoso
bff2a29f4f arm64: defconfig: add Panfrost driver
With the goal of making it easier for CI services such as KernelCI to
run tests for it.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 07:11:36 -07:00
Fabrizio Castro
89d6adc63f arm64: dts: renesas: hihope-common: Add HDMI support
Add HDMI support to the HiHope RZ/G2[MN] mother board common
dtsi.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-19 16:04:03 +02:00
Krzysztof Kozlowski
39bab7bfb7 arm64: configs: Remove useless UEVENT_HELPER_PATH
Remove the CONFIG_UEVENT_HELPER_PATH because:
1. It is disabled since commit 1be01d4a57 ("driver: base: Disable
   CONFIG_UEVENT_HELPER by default") as its dependency (UEVENT_HELPER) was
   made default to 'n',
2. It is not recommended (help message: "This should not be used today
   [...] creates a high system load") and was kept only for ancient
   userland,
3. Certain userland specifically requests it to be disabled (systemd
   README: "Legacy hotplug slows down the system and confuses udev").

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 07:02:52 -07:00
Fabrizio Castro
8c96564235 arm64: dts: renesas: r8a774a1: Add HDMI encoder instance
Add the HDMI encoder to the R8A774A1 DT in disabled state.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-19 15:52:02 +02:00
Olof Johansson
65004867c9 Merge tag 'juno-updates-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/dt
ARMv8 Juno updates for v5.3

Couple of updates switching to use new/updated bindings for CoreSight
dynamic funnel components and NOR flash partition type

* tag 'juno-updates-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  arm64: dts: juno: set the right partition type for NOR flash
  arm64: dts: juno: update coresight DT bindings

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 06:36:31 -07:00
Olof Johansson
3aa45174e1 Merge tag 'arm-soc/for-5.3/devicetree-arm64' of https://github.com/Broadcom/stblinux into arm/dt
This pull request contains Broadcom ARM64-based SoCs Device Tree changes
for 5.3, please pull the following:

- Pramod adds the Device Tree nodes for thermal support on Stingray

- Srinath adds the Device Tree nodes for both XHCI (host) and BDC
  (device) modes

- Rayagonda adds the Device Tree node for slave I2C operation when
  Stingray operates as a SmartNIC

* tag 'arm-soc/for-5.3/devicetree-arm64' of https://github.com/Broadcom/stblinux:
  arm64: dts: Stingray: Add NIC i2c device node
  arm64: dts: Add USB DT nodes for Stingray SoC
  arm64: dts: stingray: Add Stingray Thermal DT support.

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 06:36:22 -07:00
Olof Johansson
3990c9918a PCIe for rockpro64, wifi+bt for Rock-PI4, spi for Rock960 family
and a fix for the yet unused isp-iommus.
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Merge tag 'v5.3-rockchip-dts64-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/dt

PCIe for rockpro64, wifi+bt for Rock-PI4, spi for Rock960 family
and a fix for the yet unused isp-iommus.

* tag 'v5.3-rockchip-dts64-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: add WiFi+BT support on ROCK Pi4 board
  arm64: dts: rockchip: fix isp iommu clocks and power domain
  arm64: dts: rockchip: Enable SPI1 on Ficus
  arm64: dts: rockchip: Enable SPI0 and SPI4 on Rock960
  arm64: dts: rockchip: add PCIe nodes on rk3399-rockpro64

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 06:22:43 -07:00
Andy Gross
0763d0c227 arm64: qcom: qcs404: Add reset-cells to GCC node
This patch adds a reset-cells property to the gcc controller on the QCS404.
Without this in place, we get warnings like the following if nodes reference
a gcc reset:

arch/arm64/boot/dts/qcom/qcs404.dtsi:261.38-310.5: Warning (resets_property):
/soc@0/remoteproc@b00000: Missing property '#reset-cells' in node
/soc@0/clock-controller@1800000 or bad phandle (referred from resets[0])
  also defined at arch/arm64/boot/dts/qcom/qcs404-evb.dtsi:82.18-84.3
  DTC     arch/arm64/boot/dts/qcom/qcs404-evb-4000.dtb
arch/arm64/boot/dts/qcom/qcs404.dtsi:261.38-310.5: Warning (resets_property):
/soc@0/remoteproc@b00000: Missing property '#reset-cells' in node
/soc@0/clock-controller@1800000 or bad phandle (referred from resets[0])
  also defined at arch/arm64/boot/dts/qcom/qcs404-evb.dtsi:82.18-84.3

Signed-off-by: Andy Gross <agross@kernel.org>
Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 06:17:54 -07:00
Baolin Wang
c311f4ff2b arm64: dts: sprd: Add Spreadtrum SD host controller support
Add one Spreadtrum SD host controller to support eMMC card for Spreadtrum
SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-19 06:16:40 -07:00
Suman Anna
78eccc2ac9 arm64: dts: ti: k3-j721e: Add the MCU SRAM node
Add the on-chip SRAM present within the MCU domain as a mmio-sram node.
The K3 J721E SoCs have 1 MB of such memory. Any specific memory range
within this RAM needed by a driver/software module ought to be reserved
using an appropriate child node.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:49 +03:00
Lokesh Vutla
ae7d8505b1 arm64: dts: ti: k3-j721e: Add interrupt controllers in wakeup domain
Wakeup domain in J721E SoC has an interrupt router connected to gpio
in wakeup domain. Add DT node for this interrupt router.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:49 +03:00
Lokesh Vutla
073086fc68 arm64: dts: ti: k3-j721e: Add interrupt controllers in main domain
Main domain in J721E has the following interrupt controller instances:
- Main Domain GPIO Interrupt router connected to gpio in main domain.
- Under the Main Domain Navigator Subsystem(NAVSS)
	- Main Navss Interrupt Router connected to main navss inta and mailboxes.
	- Main Navss Interrupt Aggregator connected to main domain UDMASS

Add DT nodes for the interrupt controllers available in main domain.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:49 +03:00
Suman Anna
1463a70dfc arm64: dts: ti: k3-j721e-main: Add Main NavSS Interrupt controller node
Add the Interrupt controller node for the Interrupt Router present within
the Main NavSS module. This Interrupt Router can route 192 interrupts to
the GIC_SPI in 3 sets of 64 interrupts each. Note that the last set is
reserved for the host ID A72_3 for hypervisor usecases, so the node is
added only with 2 sets for the Linux kernel context (host id A72_2). This
is specified through the ti,sci-rm-range-girq property.

Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:49 +03:00
Nishanth Menon
3cd277c6d0 arm64: defconfig: Enable TI's J721E SoC platform
Enable J721E SoC support from TI.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:48 +03:00
Nishanth Menon
803d3a1870 arm64: dts: ti: Add support for J721E Common Processor Board
Add Support for J721E Common Processor board support.
The EVM architecture is as follows:

+------------------------------------------------------+
|   +-------------------------------------------+      |
|   |                                           |      |
|   |        Add-on Card 1 Options              |      |
|   |                                           |      |
|   +-------------------------------------------+      |
|                                                      |
|                                                      |
|                     +-------------------+            |
|                     |                   |            |
|                     |   SOM             |            |
|  +--------------+   |                   |            |
|  |              |   |                   |            |
|  |  Add-on      |   +-------------------+            |
|  |  Card 2      |                                    |    Power Supply
|  |  Options     |                                    |    |
|  |              |                                    |    |
|  +--------------+                                    | <---
+------------------------------------------------------+
                                Common Processor Board

Common Processor board is the baseboard that has most of the actual
connectors, power supply etc. A SOM (System on Module) is plugged on
to the common processor board and this contains the SoC, PMIC, DDR and
basic high speed components necessary for functionality. Add-n card
options add further functionality (such as additional Audio, Display,
networking options).

Note:
A) The minimum configuration required to boot up the board is System On
   Module(SOM) + Common Processor Board.
B) Since there is just a single SOM and Common Processor Board, we are
   maintaining common processor board as the base dts and SOM as the dtsi
   that we include. In the future as more SOM's appear, we should move
   common processor board as a dtsi and include configurations as dts.
C) All daughter cards beyond the basic boards shall be maintained as
   overlays.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:48 +03:00
Nishanth Menon
2d87061e70 arm64: dts: ti: Add Support for J721E SoC
The J721E SoC belongs to the K3 Multicore SoC architecture platform,
providing advanced system integration to enable lower system costs
of automotive applications such as infotainment, cluster, premium
Audio, Gateway, industrial and a range of broad market applications.
This SoC is designed around reducing the system cost by eliminating
the need of an external system MCU and is targeted towards ASIL-B/C
certification/requirements in addition to allowing complex software
and system use-cases.

Some highlights of this SoC are:
* Dual Cortex-A72s in a single cluster, three clusters of lockstep
  capable dual Cortex-R5F MCUs, Deep-learning Matrix Multiply Accelerator(MMA),
  C7x floating point Vector DSP, Two C66x floating point DSPs.
* 3D GPU PowerVR Rogue 8XE GE8430
* Vision Processing Accelerator (VPAC) with image signal processor and Depth
  and Motion Processing Accelerator (DMPAC)
* Two Gigabit Industrial Communication Subsystems (ICSSG), each with dual
  PRUs and dual RTUs
* Two CSI2.0 4L RX plus one CSI2.0 4L TX, one eDP/DP, One DSI Tx, and
  up to two DPI interfaces.
* Integrated Ethernet switch supporting up to a total of 8 external ports in
  addition to legacy Ethernet switch of up to 2 ports.
* System MMU (SMMU) Version 3.0 and advanced virtualisation
  capabilities.
* Upto 4 PCIe-GEN3 controllers, 2 USB3.0 Dual-role device subsystems,
  16 MCANs, 12 McASP, eMMC and SD, UFS, OSPI/HyperBus memory controller, QSPI,
  I3C and I2C, eCAP/eQEP, eHRPWM, MLB among other peripherals.
* Two hardware accelerator block containing AES/DES/SHA/MD5 called SA2UL
  management.
* Configurable L3 Cache and IO-coherent architecture with high data throughput
  capable distributed DMA architecture under NAVSS
* Centralized System Controller for Security, Power, and Resource
  Management (DMSC)

See J721E Technical Reference Manual (SPRUIL1, May 2019)
for further details: http://www.ti.com/lit/pdf/spruil1

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-19 11:59:48 +03:00
John Stultz
6fd7c4da54 arm64: dts: qcom: pm8998: Use qcom,pm8998-pon binding for second gen pon
This changes pm8998 to use the new qcom,pm8998-pon compatible
string for the pon in order to support the gen2 pon
functionality properly.

Cc: Andy Gross <agross@kernel.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Amit Pundir <amit.pundir@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>
2019-06-19 00:30:01 -05:00
Bjorn Andersson
72825e7f4a arm64: dts: qcom: msm8996: Enable SMMUs
Enable SMMUs on 8996 now that the WRZ workaround in the arm-smmu driver
has landed.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>
2019-06-19 00:23:29 -05:00
Bjorn Andersson
64a68a7360 arm64: dts: qcom: msm8996: Correct apr-domain property
The domain specifier was changed from using "reg" to "qcom,apr-domain",
update the dts accordingly.

Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-18 17:13:23 -07:00
Bjorn Andersson
3f72e2d3e6 arm64: dts: qcom: Add Dragonboard 845c
This adds an initial dts for the Dragonboard 845. Supported
functionality includes Debug UART, UFS, USB-C (peripheral), USB-A
(host), microSD-card and Bluetooth.

Initializing the SMMU is clearing the mapping used for the splash screen
framebuffer, which causes the board to reboot. This can be worked around
using:

  fastboot oem select-display-panel none

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Tested-by: Vinod Koul <vkoul@kernel.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-18 14:24:41 -07:00
Jeffrey Hugo
1c3f37d110
arm64: dts: msm8998-mtp: Add pm8005_s1 regulator
The pm8005_s1 is VDD_GFX, and needs to be on to enable the GPU.
This should be hooked up to the GPU CPR, but we don't have support for that
yet, so until then, just turn on the regulator and keep it on so that we
can focus on basic GPU bringup.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-18 19:27:58 +01:00
Mike Rapoport
615c48ad8f arm64/mm: don't initialize pgd_cache twice
When PGD_SIZE != PAGE_SIZE, arm64 uses kmem_cache for allocation of PGD
memory. That cache was initialized twice: first through
pgtable_cache_init() alias and then as an override for weak
pgd_cache_init().

Remove the alias from pgtable_cache_init() and keep the only pgd_cache
initialization in pgd_cache_init().

Fixes: caa8413601 ("x86/mm: Initialize PGD cache during mm initialization")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-18 14:37:28 +01:00
Anisse Astier
35341ca061 arm64/sve: <uapi/asm/ptrace.h> should not depend on <uapi/linux/prctl.h>
Pulling linux/prctl.h into asm/ptrace.h in the arm64 UAPI headers causes
userspace build issues for any program (e.g. strace and qemu) that
includes both <sys/prctl.h> and <linux/ptrace.h> when using musl libc:

  | error: redefinition of 'struct prctl_mm_map'
  |  struct prctl_mm_map {

See 6d4a106e19
for a public example of people working around this issue.

Although it's a bit grotty, fix this breakage by duplicating the prctl
constant definitions. Since these are part of the kernel ABI, they
cannot be changed in future and so it's not the end of the world to have
them open-coded.

Fixes: 43d4da2c45 ("arm64/sve: ptrace and ELF coredump support")
Cc: stable@vger.kernel.org
Acked-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Anisse Astier <aastier@freebox.fr>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-18 14:36:26 +01:00
Angus Ainslie (Purism)
eb4ea0857c arm64: dts: fsl: librem5: Add a device tree for the Librem5 devkit
This is for the development kit board for the Librem 5. The current level
of support yields a working console and is able to boot userspace from
the network or eMMC.

Additional subsystems that are active :

- Both USB ports
- SD card socket
- WiFi usdhc
- WWAN modem
- GNSS
- GPIO keys
- LEDs
- gyro
- magnetometer
- touchscreen
- pwm
- backlight
- haptic motor

Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 21:19:24 +08:00
Peng Ma
7802f88de0 arm64: dts: fsl: ls1028a: Add qDMA node
Add the qDMA device tree nodes for LS1028A devices

Signed-off-by: Peng Ma <peng.ma@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 21:06:19 +08:00
Biju Das
9e35f49cf7 arm64: dts: renesas: r8a774a1: Add dynamic power coefficient
Describe the dynamic power coefficient of A57 and A53 CPUs.

Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-18 12:42:29 +02:00
Biju Das
06a928fb58 arm64: dts: renesas: r8a774a1: Create thermal zone to support IPA
Setup a thermal zone driven by SoC temperature sensor. Create passive trip
points and bind them to CPUFreq cooling device that supports power
extension.

Based on work by Dien Pham <dien.pham.ry@renesas.com> for r8a7796 SoC.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-18 12:42:17 +02:00
Biju Das
5f5249497b arm64: dts: renesas: r8a774a1: Add CPU capacity-dmips-mhz
Set the capacity-dmips-mhz for RZ/G2M(r8a774a1) SoC, that is based on
dhrystone.

Based on work done by Gaku Inami <gaku.inami.xw@bp.renesas.com> for
r8a7796 SoC.

The average dhrystone result for 5 iterations is as below:

r8a774a1 SoC (CA57x2 + CA53x4)
  CPU   max-freq   dhrystone
  ---------------------------------
  CA57   1500 MHz  11428571 lps/s
  CA53   1200 MHz   5000000 lps/s

From this, CPU capacity-dmips-mhz for CA57 and CA53 are calculated
as follows:

r8a774a1 SoC
  CA57 : 1024 / (11428571 / 1500) * (11428571 / 1500) = 1024
  CA53 : 1024 / (11428571 / 1500) * ( 5000000 / 1200) =  560

Since each CPUs have different max frequencies, the final CPU
capacities of A53 scaled by the above difference is as below

$ cat /sys/devices/system/cpu/cpu*/cpu_capacity
1024
1024
448
448
448
448

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-18 12:42:02 +02:00
Biju Das
7b996955e5 arm64: dts: renesas: r8a774a1: Add CPU topology on r8a774a1 SoC
This patch adds the "cpu-map" into r8a774a1 composed of multi-cluster. This
definition is used to parse the cpu topology.

Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> for r8a7796 SoC.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-18 12:41:49 +02:00
Fabrizio Castro
1485b6353a arm64: dts: renesas: hihope-common: Add LEDs support
This patch adds LEDs support to the HiHope RZ/G2[MN] Main Board
common device tree.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-18 12:39:58 +02:00
Biju Das
3ba27637d8 arm64: dts: renesas: hihope-common: Enable USB3.0
This patch enables USB3.0 host/peripheral device node for the HiHope
RZ/G2M board.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-18 12:38:48 +02:00
Russell King
200f5c4081 arm64: dts: marvell: add missing #interrupt-cells property
The GPIO interrupt controllers are missing their required
specified in DT.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-06-18 10:17:39 +02:00
Anson Huang
d038c1dc35 arm64: dts: imx8mm: Enable SNVS power key according to board design
The SNVS power key depends on board design, by default it should
be disabled in SoC DT and ONLY be enabled on board DT if it is
wired up.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 15:06:01 +08:00
Anson Huang
3c3a8e5013 arm64: dts: imx8mq-evk: Enable SNVS power key
Enable SNVS power key for i.MX8MQ EVK board.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 15:05:06 +08:00
Horia Geantă
1d0becabdc arm64: dts: ls1028a: add crypto node
LS1028A has a SEC v5.0 compatible security engine.

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 14:54:33 +08:00
Li Yang
a019ab4067 arm64: defconfig: Enable FSL_EDMA driver
Enables the FSL EDMA driver by default.  This also works around an issue
that imx-i2c driver keeps deferring the probe because of the DMA is not
ready.  And currently the DMA engine framework can not correctly tell
if the DMA channels will truly become available later (it will never be
available if the DMA driver is not enabled).

This will cause indefinite messages like below:
[    3.335829] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
[    3.344455] ina2xx 0-0040: power monitor ina220 (Rshunt = 1000 uOhm)
[    3.350917] lm90 0-004c: 0-004c supply vcc not found, using dummy regulator
[    3.362089] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
[    3.370741] ina2xx 0-0040: power monitor ina220 (Rshunt = 1000 uOhm)
[    3.377205] lm90 0-004c: 0-004c supply vcc not found, using dummy regulator
[    3.388455] imx-i2c 2180000.i2c: can't get pinctrl, bus recovery not supported
.....

Signed-off-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-18 14:32:43 +08:00
Bjorn Andersson
73786fea02 arm64: dts: qcom: qcs404-evb: Enable PCIe
Enable the PCIe PHY and controller found on the QCS404 EVB.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-17 23:23:45 -07:00
Bjorn Andersson
431f64642c arm64: dts: qcom: qcs404: Add PCIe related nodes
The QCS404 has a PCIe2 PHY and a Qualcomm PCIe controller, define these
to for the platform.

Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-17 23:23:45 -07:00
David S. Miller
13091aa305 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Honestly all the conflicts were simple overlapping changes,
nothing really interesting to report.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-17 20:20:36 -07:00
Anisse Astier
adeaa21a4b arm64: ssbd: explicitly depend on <linux/prctl.h>
Fix ssbd.c which depends implicitly on asm/ptrace.h including
linux/prctl.h (through for example linux/compat.h, then linux/time.h,
linux/seqlock.h, linux/spinlock.h and linux/irqflags.h), and uses
PR_SPEC* defines.

This is an issue since we'll soon be removing the include from
asm/ptrace.h.

Fixes: 9cdc0108ba ("arm64: ssbd: Add prctl interface for per-thread mitigation")
Cc: stable@vger.kernel.org
Signed-off-by: Anisse Astier <aastier@freebox.fr>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-17 18:38:10 +01:00
Marc Gonzalez
b84dfd175c arm64: dts: qcom: msm8998: Add PCIe PHY and RC nodes
Add MSM8998 PCIe QMP PHY and PCIe root complex DT nodes.

Based on the following DTS downstream:
https://source.codeaurora.org/quic/la/kernel/msm-4.4/tree/arch/arm/boot/dts/qcom/msm8998.dtsi?h=LE.UM.1.3.r3.25#n2537

Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-17 08:50:24 -07:00
Marc Gonzalez
8389b869bb arm64: dts: qcom: msm8998: Add ANOC1 SMMU node
The MSM8998 ANOC1(*) SMMU services BLSP2, PCIe, UFS, and USB.
(*) Aggregate Network-on-Chip #1

Based on the following DTS downstream:
https://source.codeaurora.org/quic/la/kernel/msm-4.4/tree/arch/arm/boot/dts/qcom/msm-arm-smmu-8998.dtsi?h=LE.UM.1.3.r3.25#n18

Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-17 08:48:24 -07:00
Kishon Vijay Abraham I
1b89dc93b8 arm64: dts: ti: am654-base-board: Disable SERDES and PCIe
AM654 base board does not have any PCIe slots. Disable all the
SERDES and PCIe instances.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:44 +03:00
Kishon Vijay Abraham I
30eb8ea46c arm64: dts: k3-am6: Add PCIe Endpoint DT node
Add PCIe Endpoint DT node.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:44 +03:00
Kishon Vijay Abraham I
cfa6437a71 arm64: dts: k3-am6: Add PCIe Root Complex DT node
Add PCIe Root Complex DT node.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Kishon Vijay Abraham I
cedc255cc6 arm64: dts: k3-am6: Add SERDES DT node
Add DT node for SERDES0 and SERDES1.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Kishon Vijay Abraham I
1cbe04b0b7 arm64: dts: k3-am6: Add mux-controller DT node required for muxing SERDES
Add mux-controller DT node as a child node of scm_conf. This is
required for muxing SERDES between USB, PCIe and ICSS2 SGMII.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Kishon Vijay Abraham I
4b4ffc6e1f arm64: dts: k3-am6: Add "socionext,synquacer-pre-its" property to gic_its
GIC_ITS used in AM654 platform has the same configuration as that of
GIC_ITS used in Socionext SoCs. Add "socionext,synquacer-pre-its"
property to get PCI MSI working.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:58:43 +03:00
Roger Quadros
cc2d13e750 arm64: dts: ti: k3-am65: Add MSMC RAM ranges in interconnect node
Add the MSCM RAM address space to the ranges property of the cbass_main
interconnect node so that the addresses can be translated properly.

This fixes the probe failure in the sram driver for the MSMC RAM node.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:50:24 +03:00
Suman Anna
833123386c arm64: dts: ti: k3-am65: Add R5F ranges in interconnect nodes
Add the address spaces for the R5F cores in MCU domain to the ranges
property of the cbass_mcu interconnect node so that the addresses
within the R5F nodes can be translated properly by the relevant OF
address API.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:32:51 +03:00
Suman Anna
f853f00531 arm64: dts: ti: k3-am65-mcu: Add the MCU RAM node
Add the on-chip SRAM present within the MCU domain as a mmio-sram node.
The K3 AM65x SoCs have 512 KB of such memory. Any specific memory range
within this RAM needed by a software module ought to be reserved using
an appropriate child node.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:31:31 +03:00
Suman Anna
0ded541218 arm64: dts: ti: k3-am65: Add MCU SRAM ranges in interconnect nodes
Add the address space for the MCU SRAM memory to the ranges property
of the cbass_mcu interconnect node so that the addresses within the
mcu_sram nodes and its children can be translated properly by the
relevant OF address API.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:31:30 +03:00
Keerthy
c67f7388a6 arm64: dts: ti: am654-base-board: Add gpio_keys node
There are 2 push buttons: SW5 and SW6 that are basically connected to
WKUP_GPIO0_24 and WKUP_GPIO0_27 respectively. Add the respective
nodes and the pinctrl data to set the mode to GPIO and Input.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:29 +03:00
Keerthy
980cc42754 arm64: dts: ti: am6-main: Add gpio nodes
Add gpio0/1 nodes under main domain. They have 96 and 90 gpios
respectively and all are capable of generating banked interrupts.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Keerthy
7a558c4697 arm64: dts: ti: am6-wakeup: Add gpio node
Add gpio0 node under wakeup domain. This has 56 gpios
and all are capable of generating banked interrupts.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Lokesh Vutla
5fec389feb arm64: dts: ti: k3-am654: Add interrupt controllers in wakeup domain
Wakeup domain in AM654 SoC has an interrupt router connected to gpio
in wakeup domain. Add DT node for this interrupt router.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Lokesh Vutla
cba9943cde arm64: dts: ti: k3-am654: Add interrupt controllers in main domain
Main domain in AM654 has the following interrupt controller instances:
- Main Domain GPIO Interrupt router connected to gpio in main domain.
- Under the Main Domain Navigator Subsystem(NAVSS)
    - Main Navss Interrupt Router connected to main navss inta and mailboxes.
    - Main Navss Interrupt Aggregator connected to main domain UDMASS

Add DT nodes for the above three interrupt controllers available
in main domain.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Lokesh Vutla
f5a5d83f16 arm64: dts: ti: k3-am654: Update compatible for dmsc
Use the am654 specific compatible for dmsc. This allows to use
the am654 specific RM mapping table.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
2019-06-17 17:24:28 +03:00
Olof Johansson
b41e48a82b This pull request contains Broadcom ARM64-based SoCs Kconfig.platform
changes for 5.3, please pull the following:
 
 - Jim adds the ability for ARCH_BRCMSTB to use reset controllers
 
 - Doug adds the ability for ARCH_BRCMSTB to use the PINCTRL framework
 
 - Florian enables the use of the BCM7038 Level 1 interrupt controller
   for ARCH_BRCMSTB
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Merge tag 'arm-soc/for-5.3/soc-arm64' of https://github.com/Broadcom/stblinux into arm/soc

This pull request contains Broadcom ARM64-based SoCs Kconfig.platform
changes for 5.3, please pull the following:

- Jim adds the ability for ARCH_BRCMSTB to use reset controllers

- Doug adds the ability for ARCH_BRCMSTB to use the PINCTRL framework

- Florian enables the use of the BCM7038 Level 1 interrupt controller
  for ARCH_BRCMSTB

* tag 'arm-soc/for-5.3/soc-arm64' of https://github.com/Broadcom/stblinux:
  arm64: Enable PINCTRL for ARCH_BRCMSTB
  arm64: Enable ARCH_HAS_RESET_CONTROLLER for ARCH_BRCMSTB
  arm64: Enable BCM7038_L1_IRQ for ARCH_BRCMSTB

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-17 05:16:02 -07:00
Masayoshi Mizuma
8f5c9037a5 arm64/mm: Correct the cache line size warning with non coherent device
If the cache line size is greater than ARCH_DMA_MINALIGN (128),
the warning shows and it's tainted as TAINT_CPU_OUT_OF_SPEC.

However, it's not good because as discussed in the thread [1], the cpu
cache line size will be problem only on non-coherent devices.

Since the coherent flag is already introduced to struct device,
show the warning only if the device is non-coherent device and
ARCH_DMA_MINALIGN is smaller than the cpu cache size.

[1] https://lore.kernel.org/linux-arm-kernel/20180514145703.celnlobzn3uh5tc2@localhost/

Signed-off-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Tested-by: Zhang Lei <zhang.lei@jp.fujitsu.com>
[catalin.marinas@arm.com: removed 'if' block for WARN_TAINT]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-17 11:52:47 +01:00
Ingo Molnar
410df0c574 Linux 5.2-rc5
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Merge tag 'v5.2-rc5' into locking/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-06-17 12:06:34 +02:00
Fabrizio Castro
734d277f41 arm64: dts: renesas: hihope-common: Add USB 2.0 support
Add USB 2.0 support to the HiHope RZ/G2M.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-17 10:05:44 +02:00
Fabrizio Castro
a573cb676d arm64: dts: renesas: r8a774a1: Fix USB 2.0 clocks
Similarly to what done for the r8a7796 with commit 737e05bf03
("arm64: dts: renesas: revise properties for R-Car Gen3 SoCs'
usb 2.0"), this patch lists the clock for the USB High-Speed Module
(HS-USB) with the USB2.0 Host (EHCI/OHCI) IP DT node, and it lists
the clock for the USB2.0 Host IP with the HS-USB module DT node.

Fixes: 4c2c2fb998 ("arm64: dts: renesas: r8a774a1: Add USB2.0 phy and host(EHCI/OHCI) device nodes")
Fixes: ed898d4fc1 ("arm64: dts: renesas: r8a774a1: Add USB-DMAC and HSUSB device nodes")
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-17 10:04:25 +02:00
Olof Johansson
5a55a16123 Texas Instruments AM65x fixes for v5.2
- Fix up a Kbuild warning when SOC_TI is not set
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Merge tag 'am654-fixes-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux into fixes

Texas Instruments AM65x fixes for v5.2

- Fix up a Kbuild warning when SOC_TI is not set

* tag 'am654-fixes-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kristo/linux:
  arm64: arch_k3: Fix kconfig dependency warning

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16 13:30:30 -07:00
Olof Johansson
4bded29983 i.MX fixes for 5.2:
- A build fix for soc-imx8 driver which needs SOC_BUS support.  To
    avoid dealing with the dependency for every single i.MX SoC bus
    driver, we selects at from architecture level.
  - A fix on i.MX SCU firmware driver to ensure SCU irq is enabled only
    after IPC is ready.
  - A regression fix on cpuidle-imx6sx driver, which causes some
    characters loss on serial communication.
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Merge tag 'imx-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

i.MX fixes for 5.2:
 - A build fix for soc-imx8 driver which needs SOC_BUS support.  To
   avoid dealing with the dependency for every single i.MX SoC bus
   driver, we selects at from architecture level.
 - A fix on i.MX SCU firmware driver to ensure SCU irq is enabled only
   after IPC is ready.
 - A regression fix on cpuidle-imx6sx driver, which causes some
   characters loss on serial communication.

* tag 'imx-fixes-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: imx: cpuidle-imx6sx: Restrict the SW2ISO increase to i.MX6SX
  firmware: imx: SCU irq should ONLY be enabled after SCU IPC is ready
  arm64: imx: Fix build error without CONFIG_SOC_BUS

Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-16 13:26:55 -07:00
Yangbo Lu
fe844f1936 arm64: dts: fsl: add ptp timer node for dpaa2 platforms
This patch is to add ptp timer device tree node for dpaa2
platforms(ls1088a/ls208xa/lx2160a).

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-15 13:43:06 -07:00
Neil Armstrong
cd0727aa42 arm64: dts: meson-g12a-x96-max: add sound card
Enable the sound card on the X96 Max, enabling HDMI output using the
TDM interface B, being aligned on other boards sound cards.
SPDI/F support is also enabled to the physical toslink port and to HDMI.

The internal DAC connected to the audio jack will be added later on, when
driver support is added.

Tested by running:
tinymix set "FRDDR_A SRC 1 EN Switch" 1
tinymix set "FRDDR_A SINK 1 SEL" "OUT 1"
tinymix set "FRDDR_B SRC 1 EN Switch" 1
tinymix set "FRDDR_B SINK 1 SEL" "OUT 1"
tinymix set "FRDDR_C SRC 1 EN Switch" 1
tinymix set "FRDDR_C SINK 1 SEL" "OUT 1"
tinymix set "TOHDMITX I2S SRC" "I2S B"
tinymix set "TOHDMITX Switch" 1

then:
tinymix set "TDMOUT_B SRC SEL" "IN 0"
speaker-test -Dhw:0,0 -c2

then:
tinymix set "TDMOUT_B SRC SEL" "IN 1"
speaker-test -Dhw:0,1 -c2

then:
tinymix set "TDMOUT_B SRC SEL" "IN 2"
speaker-test -Dhw:0,2 -c2

testing HDMI audio output from the all 3 ASoC playback interfaces.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-14 15:55:56 -07:00
Neil Armstrong
aa7d5873bf arm64: dts: meson-g12b-odroid-n2: add sound card
Enable the sound card on the Hardkernel Odroid-N2, enabling HDMI output
using the TDM interface B, being aligned on other boards sound cards.

The internal DAC connected to the audio jack will be added later on, when
driver support is added.

Tested by running:
tinymix set "FRDDR_A SRC 1 EN Switch" 1
tinymix set "FRDDR_A SINK 1 SEL" "OUT 1"
tinymix set "FRDDR_B SRC 1 EN Switch" 1
tinymix set "FRDDR_B SINK 1 SEL" "OUT 1"
tinymix set "FRDDR_C SRC 1 EN Switch" 1
tinymix set "FRDDR_C SINK 1 SEL" "OUT 1"
tinymix set "TOHDMITX I2S SRC" "I2S B"
tinymix set "TOHDMITX Switch" 1

then:
tinymix set "TDMOUT_B SRC SEL" "IN 0"
speaker-test -Dhw:0,0 -c2

then:
tinymix set "TDMOUT_B SRC SEL" "IN 1"
speaker-test -Dhw:0,1 -c2

then:
tinymix set "TDMOUT_B SRC SEL" "IN 2"
speaker-test -Dhw:0,2 -c2

testing HDMI audio output from the all 3 ASoC playback interfaces.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-14 15:55:56 -07:00
Jerome Brunet
64c10554bf arm64: dts: meson: sei510: add sound card
Enable the sound card on the sei510:
* TDM interface A is connected to an external DAC and a speaker installed
  on the device.
* HDMI is expected to use TDM B. It can also use TDM A but will be
  limited to 2 channels, as accepted by the external DAC.
* 2 Built in PDM mics through the PDM interface.
* Both TDM outputs may use HW loopback.

The internal DAC connected to audio jack will be added later on, when
driver support is added.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-14 15:55:56 -07:00
Maxime Jourdan
b06c8c6e9b arm64: dts: meson: sei510: add max98357a DAC
The SEI510 board features a max98357a audio codec for built-in
speaker

Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-14 15:55:56 -07:00
Mauro Carvalho Chehab
d67297ad34 docs: kdump: convert docs to ReST and rename to *.rst
Convert kdump documentation to ReST and add it to the
user faced manual, as the documents are mainly focused on
sysadmins that would be enabling kdump.

Note: the vmcoreinfo.rst has one very long title on one of its
sub-sections:

	PG_lru|PG_private|PG_swapcache|PG_swapbacked|PG_slab|PG_hwpoision|PG_head_mask|PAGE_BUDDY_MAPCOUNT_VALUE(~PG_buddy)|PAGE_OFFLINE_MAPCOUNT_VALUE(~PG_offline)

I opted to break this one, into two entries with the same content,
in order to make it easier to display after being parsed in html and PDF.

The conversion is actually:
  - add blank lines and identation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-14 14:21:24 -06:00
Mauro Carvalho Chehab
b693d0b372 docs: arm64: convert docs to ReST and rename to .rst
The documentation is in a format that is very close to ReST format.

The conversion is actually:
  - add blank lines in order to identify paragraphs;
  - fixing tables markups;
  - adding some lists markups;
  - marking literal blocks;
  - adjust some title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-14 14:20:27 -06:00
Jonathan Corbet
8afecfb0ec Linux 5.2-rc4
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Merge tag 'v5.2-rc4' into mauro

We need to pick up post-rc1 changes to various document files so they don't
get lost in Mauro's massive RST conversion push.
2019-06-14 14:18:53 -06:00
Linus Torvalds
72a20cee5d arm64 fixes for -rc5
- Fix broken SVE ptrace API when running in a big-endian configuration
 
 - Fix performance regression due to off-by-one in TLBI range checking
 
 - Fix build regression when using Clang
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Here are some arm64 fixes for -rc5.

  The only non-trivial change (in terms of the diffstat) is fixing our
  SVE ptrace API for big-endian machines, but the majority of this is
  actually the addition of much-needed comments and updates to the
  documentation to try to avoid this mess biting us again in future.

  There are still a couple of small things on the horizon, but nothing
  major at this point.

  Summary:

   - Fix broken SVE ptrace API when running in a big-endian configuration

   - Fix performance regression due to off-by-one in TLBI range checking

   - Fix build regression when using Clang"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/sve: Fix missing SVE/FPSIMD endianness conversions
  arm64: tlbflush: Ensure start/end of address range are aligned to stride
  arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
2019-06-14 06:16:47 -10:00
Nicolin Chen
34b09b9f1f arm64: defconfig: Add HWMON INA3221 support
Tegra186 board under arm64 is using this device, according to
its dts file. So this patch enables its driver with a "=m" as
the other HWMON drivers.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-14 17:59:38 +02:00
Thierry Reding
6b9e263b44 arm64: tegra: Don't use architected timer for suspend on Tegra210
Due to an integration issue the architected timer on Tegra210 does not
remain on during system suspend (a.k.a. SC7). Mark it accordingly so
that it isn't considered as a means to track suspend time.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-14 17:56:53 +02:00
Thierry Reding
b30be6734e arm64: tegra: Mark architected timer as always on
The architected timer on Tegra186 and Tegra194 is in an always on power
partition and its reference clock will always run, so mark the timer as
always on.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-14 17:56:53 +02:00
Nick Xie
c2aacceedc arm64: dts: rockchip: Add support for Khadas Edge/Edge-V/Captain boards
Add devicetree support for Khadas Edge/Edge-V/Captain boards.
Khadas Edge is an expandable Rockchip RK3399 board with goldfinger.
Khadas Captain is the carrier board for Khadas Edge.
Khadas Edge-V is a Khadas VIM form factor Rockchip RK3399 board.

Signed-off-by: Nick Xie <nick@khadas.com>
[edge-captain and edge-v contain different components that are supposed
 to get added in future patches, so should stay separate while looking
 somewhat similar right now]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-14 15:59:35 +02:00
Bartlomiej Zolnierkiewicz
1a2a66db49 arm64: remove redundant 'default n' from Kconfig
'default n' is the default value for any bool or tristate Kconfig
setting so there is no need to write it explicitly.

Also since commit f467c5640c ("kconfig: only write '# CONFIG_FOO
is not set' for visible symbols") the Kconfig behavior is the same
regardless of 'default n' being present or not:

    ...
    One side effect of (and the main motivation for) this change is making
    the following two definitions behave exactly the same:

        config FOO
                bool

        config FOO
                bool
                default n

    With this change, neither of these will generate a
    '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied).
    That might make it clearer to people that a bare 'default n' is
    redundant.
    ...

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-14 11:52:06 +01:00
Ezequiel Garcia
549dcdafe7 arm64: dts: rockchip: Enable HDMI audio on Rock Pi
This commit enables the hdmi-sound device needed to have
audio over HDMI on the Rock Pi board.

Fixes: 1b5715c602 ("arm64: dts: rockchip: add ROCK Pi 4 DTS support")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-14 11:19:32 +02:00
Dave Martin
41040cf7c5 arm64/sve: Fix missing SVE/FPSIMD endianness conversions
The in-memory representation of SVE and FPSIMD registers is
different: the FPSIMD V-registers are stored as single 128-bit
host-endian values, whereas SVE registers are stored in an
endianness-invariant byte order.

This means that the two representations differ when running on a
big-endian host.  But we blindly copy data from one representation
to another when converting between the two, resulting in the
register contents being unintentionally byteswapped in certain
situations.  Currently this can be triggered by the first SVE
instruction after a syscall, for example (though the potential
trigger points may vary in future).

So, fix the conversion functions fpsimd_to_sve(), sve_to_fpsimd()
and sve_sync_from_fpsimd_zeropad() to swab where appropriate.

There is no common swahl128() or swab128() that we could use here.
Maybe it would be worth making this generic, but for now add a
simple local hack.

Since the byte order differences are exposed in ABI, also clarify
the documentation.

Cc: Alex Bennée <alex.bennee@linaro.org>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Alan Hayward <alan.hayward@arm.com>
Cc: Julien Grall <julien.grall@arm.com>
Fixes: bc0ee47603 ("arm64/sve: Core task context handling")
Fixes: 8cd969d28f ("arm64/sve: Signal handling support")
Fixes: 43d4da2c45 ("arm64/sve: ptrace and ELF coredump support")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
[will: Fix typos in comments and docs spotted by Julien]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-13 10:07:19 +01:00
Eric Biggers
860ab2e502 crypto: chacha - constify ctx and iv arguments
Constify the ctx and iv arguments to crypto_chacha_init() and the
various chacha*_stream_xor() functions.  This makes it clear that they
are not modified.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-06-13 14:31:40 +08:00
Yuantian Tang
55d0f98a2d arm64: dts: ls1028a: Add temperature sensor node
Add nxp sa56004 chip node for temperature monitor.

Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-13 10:51:40 +08:00
Will Deacon
01d57485fc arm64: tlbflush: Ensure start/end of address range are aligned to stride
Since commit 3d65b6bbc0 ("arm64: tlbi: Set MAX_TLBI_OPS to
PTRS_PER_PTE"), we resort to per-ASID invalidation when attempting to
perform more than PTRS_PER_PTE invalidation instructions in a single
call to __flush_tlb_range(). Whilst this is beneficial, the mmu_gather
code does not ensure that the end address of the range is rounded-up
to the stride when freeing intermediate page tables in pXX_free_tlb(),
which defeats our range checking.

Align the bounds passed into __flush_tlb_range().

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reported-by: Hanjun Guo <guohanjun@huawei.com>
Tested-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-12 16:19:45 +01:00
Dave Martin
df205b5c63 KVM: arm64: Filter out invalid core register IDs in KVM_GET_REG_LIST
Since commit d26c25a9d1 ("arm64: KVM: Tighten guest core register
access from userspace"), KVM_{GET,SET}_ONE_REG rejects register IDs
that do not correspond to a single underlying architectural register.

KVM_GET_REG_LIST was not changed to match however: instead, it
simply yields a list of 32-bit register IDs that together cover the
whole kvm_regs struct.  This means that if userspace tries to use
the resulting list of IDs directly to drive calls to KVM_*_ONE_REG,
some of those calls will now fail.

This was not the intention.  Instead, iterating KVM_*_ONE_REG over
the list of IDs returned by KVM_GET_REG_LIST should be guaranteed
to work.

This patch fixes the problem by splitting validate_core_offset()
into a backend core_reg_size_from_offset() which does all of the
work except for checking that the size field in the register ID
matches, and kvm_arm_copy_reg_indices() and num_core_regs() are
converted to use this to enumerate the valid offsets.

kvm_arm_copy_reg_indices() now also sets the register ID size field
appropriately based on the value returned, so the register ID
supplied to userspace is fully qualified for use with the register
access ioctls.

Cc: stable@vger.kernel.org
Fixes: d26c25a9d1 ("arm64: KVM: Tighten guest core register access from userspace")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Tested-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-12 15:53:55 +01:00
Viresh Kumar
0c529ff789 KVM: arm64: Implement vq_present() as a macro
This routine is a one-liner and doesn't really need to be function and
can be implemented as a macro.

Suggested-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2019-06-12 15:53:33 +01:00
Jernej Skrabec
9164665a39
arm64: dts: allwinner: h6: Add DMA node
H6 has DMA controller which supports 16 channels.

Add a node for it.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-06-12 15:25:59 +02:00
Fabrizio Castro
67e291362a arm64: dts: renesas: r8a774a1: Add TMU device nodes
This patch adds TMU[01234] device tree nodes to the r8a774a1
SoC specific DT.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 14:29:06 +02:00
Fabrizio Castro
aa85b3cac7 arm64: dts: renesas: r8a774a1: Add CMT device nodes
This patch adds the CMT[0123] device tree nodes to the
r8a774a1 SoC specific DT.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 14:26:29 +02:00
Fabrizio Castro
015a75077d arm64: dts: renesas: hihope-common: Add uSD and eMMC
This patch adds uSD and eMMC support to the HiHope RZ/G2M
board.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 14:16:16 +02:00
Takeshi Kihara
06585ed38b arm64: dts: renesas: r8a77990: Fix register range of display node
Since the R8A77990 SoC uses DU{0,1}, the range from the base address to
the 0x4000 address is used.
This patch fixed it.

Fixes: 13ee2bfc54 ("arm64: dts: renesas: r8a77990: Add display output support")
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 14:10:47 +02:00
Biju Das
ec0a286a33 arm64: dts: renesas: cat874: Enable usb role switch support
This patch enables TI HD3SS3220 device and support usb role switch
for the CAT 874 platform.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 14:07:48 +02:00
Biju Das
cf7b175ae4 arm64: dts: renesas: cat874: Enable USB3.0 host/peripheral device node
This patch enables USB3.0 host/peripheral device node for the cat874
board.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 14:07:27 +02:00
Biju Das
c24f6886b2 arm64: defconfig: enable TYPEC_HD3SS3220 config option
Enable support for the TI HD3SS320 USB Type-C DRP Port controller driver
by turning on CONFIG_TYPEC and CONFIG_TYPEC_HD3SS3220 as modules.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 13:57:08 +02:00
Laurent Pinchart
46f69d06af arm64: dts: renesas: r8a7799[05]: Point LVDS0 to its companion LVDS1
Add the new renesas,companion property to the LVDS0 node to point to the
companion LVDS encoder LVDS1.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 13:52:29 +02:00
Biju Das
736a291d4f arm64: dts: renesas: hihope-common: Add RWDT support
Enable RWDT and use 60 seconds as default timeout.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 13:50:57 +02:00
Biju Das
3c3ca5f746 arm64: dts: renesas: hihope-rzg2-ex: Enable PCIe support
This patch enables PCIEC[01] PCI express controller on the sub board.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 13:50:28 +02:00
Biju Das
61e0505b16 arm64: dts: renesas: hihope-common: Declare pcie bus clock
Declare pcie bus clock, since it is generated on the HiHope RZ/G2M main
board.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 13:49:39 +02:00
Biju Das
a5a41d50ff arm64: dts: renesas: r8a774a1: Add PCIe device nodes
This patch adds PCIe{0,1} device nodes for R8A774A1 SoC.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-12 13:38:52 +02:00
Nathan Chancellor
fa63da2ab0 arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
This is a GCC only option, which warns about ABI changes within GCC, so
unconditionally adding it breaks Clang with tons of:

warning: unknown warning option '-Wno-psabi' [-Wunknown-warning-option]

and link time failures:

ld.lld: error: undefined symbol: __efistub___stack_chk_guard
>>> referenced by arm-stub.c:73
(/home/nathan/cbl/linux/drivers/firmware/efi/libstub/arm-stub.c:73)
>>>               arm-stub.stub.o:(__efistub_install_memreserve_table)
in archive ./drivers/firmware/efi/libstub/lib.a

These failures come from the lack of -fno-stack-protector, which is
added via cc-option in drivers/firmware/efi/libstub/Makefile. When an
unknown flag is added to KBUILD_CFLAGS, clang will noisily warn that it
is ignoring the option like above, unlike gcc, who will just error.

$ echo "int main() { return 0; }" > tmp.c

$ clang -Wno-psabi tmp.c; echo $?
warning: unknown warning option '-Wno-psabi' [-Wunknown-warning-option]
1 warning generated.
0

$ gcc -Wsometimes-uninitialized tmp.c; echo $?
gcc: error: unrecognized command line option
‘-Wsometimes-uninitialized’; did you mean ‘-Wmaybe-uninitialized’?
1

For cc-option to work properly with clang and behave like gcc, -Werror
is needed, which was done in commit c3f0d0bc5b ("kbuild, LLVMLinux:
Add -Werror to cc-option to support clang").

$ clang -Werror -Wno-psabi tmp.c; echo $?
error: unknown warning option '-Wno-psabi'
[-Werror,-Wunknown-warning-option]
1

As a consequence of this, when an unknown flag is unconditionally added
to KBUILD_CFLAGS, it will cause cc-option to always fail and those flags
will never get added:

$ clang -Werror -Wno-psabi -fno-stack-protector tmp.c; echo $?
error: unknown warning option '-Wno-psabi'
[-Werror,-Wunknown-warning-option]
1

This can be seen when compiling the whole kernel as some warnings that
are normally disabled (see below) show up. The full list of flags
missing from drivers/firmware/efi/libstub are the following (gathered
from diffing .arm64-stub.o.cmd):

-fno-delete-null-pointer-checks
-Wno-address-of-packed-member
-Wframe-larger-than=2048
-Wno-unused-const-variable
-fno-strict-overflow
-fno-merge-all-constants
-fno-stack-check
-Werror=date-time
-Werror=incompatible-pointer-types
-ffreestanding
-fno-stack-protector

Use cc-disable-warning so that it gets disabled for GCC and does nothing
for Clang.

Fixes: ebcc5928c5 ("arm64: Silence gcc warnings about arch ABI drift")
Link: https://github.com/ClangBuiltLinux/linux/issues/511
Reported-by: Qian Cai <cai@lca.pw>
Acked-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-12 10:54:47 +01:00
Bjorn Andersson
693e824452 arm64: dts: qcom: msm8996: Stop using legacy clock names
MDSS and its friends complain about the DTS is using legacy clock names,
update these to silence the warnings.

Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-11 23:10:11 -07:00
Niklas Cassel
73db271423 arm64: dts: msm8996: fix PSCI entry-latency-us
The current entry-latency-us is too short.
The proper way to convert between the device tree properties
from the vendor tree to the upstream PSCI device tree properties is:

entry-latency-us = qcom,time-overhead - qcom,latency-us

which gives

entry-latency-us = 210 - 80 = 130

Fixes: f6aee7af59 ("arm64: dts: qcom: msm8996: Add PSCI cpuidle low power states")
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-11 23:10:10 -07:00
Ran Wang
53f2ac9d3a arm64: dts: ls1028a: Fix CPU idle fail.
PSCI spec define 1st parameter's bit 16 of function CPU_SUSPEND to
indicate CPU State Type: 0 for standby, 1 for power down. In this
case, we want to select standby for CPU idle feature. But current
setting wrongly select power down and cause CPU SUSPEND fail every
time. Need this fix.

Fixes: 8897f3255c ("arm64: dts: Add support for NXP LS1028A SoC")
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-12 13:46:33 +08:00
Amit Kucheria
c3083c80b5 arm64: dts: qcom: msm8998: Add PSCI cpuidle low power states
Add device bindings for cpuidle states for cpu devices.

[marc: rebase, fix arm,psci-suspend-param, fix entry-latency-us]
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-11 21:55:48 -07:00
Sibi Sankar
e76c367217 arm64: dts: qcom: sdm845: Add Q6V5 MSS node
This patch adds Q6V5 MSS remoteproc node for SDM845 SoCs.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-11 21:54:11 -07:00
Bjorn Andersson
a797743871 arm64: dts: qcom: Add AOSS QMP node
The AOSS QMP provides a number of power domains, used for QDSS and
PIL, add the node for this.

Tested-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-11 21:53:52 -07:00
Martin Blumenstingl
568465c3fb arm64: dts: meson: g12a: add the GPIO interrupt controller
GPIO interrupts are used for the external Ethernet RGMII PHY interrupt
line.
Add the GPIO interrupt controller so we can describe that connection in
the dts files.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 16:18:06 -07:00
Neil Armstrong
e4998f48ea arm64: dts: meson-g12a-x96-max: bump bluetooth bus speed to 2Mbaud/s
Setting to 2Mbaud/s is the nominal bus speed for common usages.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Neil Armstrong
dff60019d9 arm64: dts: meson-g12a-sei510: bump bluetooth bus speed to 2Mbaud/s
Setting to 2Mbaud/s is the nominal bus speed for common usages.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Neil Armstrong
524595ec62 arm64: dts: meson-g12a-x96-max: add 32k clock to bluetooth node
The 32k low power clock is necessary for the bluetooth part of the
combo module to initialize correctly, simply add the same clock we
use for the sdio pwrseq.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Neil Armstrong
faf438e066 arm64: dts: meson-g12a-sei510: add 32k clock to bluetooth node
The 32k low power clock is necessary for the bluetooth part of the
combo module to initialize correctly, simply add the same clock we
use for the sdio pwrseq.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Neil Armstrong
5f57a09e96 arm64: dts: meson-g12a-sei510: Enable Wifi SDIO module
The SEI510 embeds an AP6398S SDIO module, let's add the
corresponding SDIO, PWM clock and mmc-pwrseq nodes.

Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Neil Armstrong
b497ad3820 arm64: dts: meson-g12a-x96-max: Enable Wifi SDIO Module
The X96 Max embeds an AP6398S SDIO module, let's add the
corresponding SDIO, PWM clock and mmc-pwrseq nodes.

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Guillaume La Roque
45380009f7 arm64: dts: meson-g12a-x96-max: add support for sdcard and emmc
Add nodes to support SDCard and onboard eMMC on the X96 Max.

Signed-off-by: Guillaume La Roque <glaroque@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:04 -07:00
Jerome Brunet
8a6b3ca2d3 arm64: dts: meson: g12a: add SDIO controller
The Amlogic G12A SDIO Controller has a bug preventing direct DDR access,
add the port A (SDIO) pinctrl and controller nodes and mark this specific
controller with the amlogic,dram-access-quirk property.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:03 -07:00
Neil Armstrong
c35f6dc5c3 arm64: dts: meson: Add minimal support for Odroid-N2
This patch adds basic support for :
- Amlogic G12B, which is very similar to G12A
- The HardKernel Odroid-N2 based on the S922X SoC

The Amlogic G12B SoC is very similar with the G12A SoC, sharing
most of the features and architecture, but with these differences :
- The first CPU cluster only has 2xCortex-A53 instead of 4
- G12B has a second cluster of 4xCortex-A73
- Both cluster can achieve 2GHz instead of 1,8GHz for G12A
- CPU Clock architecture is difference, thus needing a different
  compatible to handle this slight difference
- Supports a MIPI CSI input
- Embeds a Mali-G52 instead of a Mali-G31, but integration is the same

Actual support is done in the same way as for the GXM support, including
the G12A dtsi and redefining the CPU clusters.
Unlike GXM, the first cluster is different, thus needing to remove
the last 2 cpu nodes of the first cluster.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
[khilman: add vin-supply for vcc_v5 as suggested by Anand Moon]
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:03 -07:00
Neil Armstrong
ec066d8f9e arm64: dts: meson-gxbb-vega-s95: add ethernet PHY interrupt
Add the external ethernet PHY interrupt on the Vega S95 board.

Suggested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:03 -07:00
Neil Armstrong
b07a11dbdf arm64: dts: meson-gxbb-vega-s95: fix WiFi/BT module support
Fix the SDIO WiFi support and add proper Bluetooth support on the
Vega S95 board.

Suggested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:03 -07:00
Neil Armstrong
f1ef6262d1 arm64: dts: meson-gxbb-vega-s95: enable SARADC
Add SARARC node and associated regulator to support reading the
ADC inputs on the Vega S95

Suggested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:03 -07:00
Neil Armstrong
8d6dbe5be8 arm64: dts: meson-gxbb-vega-s95: enable CEC
Add CEC nodes to support CEC communication on Vega S95

Suggested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Neil Armstrong
954b67dfe6 arm64: dts: meson-gxbb-vega-s95: add HDMI nodes
Add HDMI nodes to support graphics on Vega S95

Suggested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Neil Armstrong
41112431e5 arm64: dts: meson-gxbb-vega-s95: fix regulators
Align the regulator names with other GXBB SoCS for upcoming
SARADC support and SDIO/SDCard fixes.
Also fix how regulators are passed to MMC controllers & USB.

Suggested-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Christian Hewitt
55c2440dd0 arm64: dts: meson-gxbb-wetek: enable bluetooth
This enables Bluetooth support for the following models:

AP6335 in the WeTek Hub rev1 - BCM4335C0.hcd
AP6255 in the WeTek Hub rev2 - BCM4345C0.hcd
AP6330 in the WeTek Play 2 - BCM4330B1.hcd

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Christian Hewitt
dfa8b3cd14 arm64: dts: meson-gxbb-wetek: enable SARADC
Enable SARADC on Wetek Boards.

Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Christian Hewitt
33344e2111 arm64: dts: meson-gxm-khadas-vim2: fix Bluetooth support
- Remove serial1 alias
- Add support for uart_A rts/cts
- Add bluetooth uart_A subnode qith shutdown gpio

Fixes: b8b74dda39 ("ARM64: dts: meson-gxm: Add support for Khadas VIM2")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Christian Hewitt
0afd24c2fb arm64: dts: meson-gxm-khadas-vim2: fix gpio-keys-polled node
Fix DTC warnings:

meson-gxm-khadas-vim2.dtb: Warning (avoid_unnecessary_addr_size):
   /gpio-keys-polled: unnecessary #address-cells/#size-cells
	without "ranges" or child "reg" property

Fixes: b8b74dda39 ("ARM64: dts: meson-gxm: Add support for Khadas VIM2")
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:02 -07:00
Neil Armstrong
e8e7037cb6 arm64: dts: meson-g12a-x96-max: Add Gigabit Ethernet Support
Enable the network interface of the X96 Mac using an external
Realtek RTL8211F gigabit PHY, needing the same broken-eee properties
as the previous Amlogic SoC generations.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Neil Armstrong
1b2f377b51 arm64: dts: meson: g12a: Add hwrng node
The Amlogic G12A has the hwrng module at the end of an unknown
"EFUSE" bus.

The hwrng is not enabled on the vendor G12A DTs, but is enabled on
next generation SM1 SoC family sharing the exact same memory mapping.

Let's add the "EFUSE" bus and the hwrng node.

This hwrng has been checked with the rng-tools rngtest FIPS tool :
rngtest: starting FIPS tests...
rngtest: bits received from input: 1630240032
rngtest: FIPS 140-2 successes: 81436
rngtest: FIPS 140-2 failures: 76
rngtest: FIPS 140-2(2001-10-10) Monobit: 10
rngtest: FIPS 140-2(2001-10-10) Poker: 6
rngtest: FIPS 140-2(2001-10-10) Runs: 26
rngtest: FIPS 140-2(2001-10-10) Long run: 34
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=3.784; avg=5687.521; max=19073.486)Mibits/s
rngtest: FIPS tests speed: (min=47.684; avg=52.348; max=52.835)Mibits/s
rngtest: Program run time: 30000987 microseconds

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Jerome Brunet
9d63f5d138 arm64: dts: meson: add dwmac-3.70a to ethmac compatible list
After discussing with Amlogic, the Synopsys GMAC version used by
the gx and axg family is the 3.70a. Set this is in DT

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Neil Armstrong
47b65cb8b5 arm64: dts: meson: g12a: add drive strength for eth pins
With the X96 Max board using an external Gigabit Ethernet PHY,
add the same driver strength to the Ethernet pins as the vendor
tree.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Neil Armstrong
d9b9640b8d arm64: dts: meson: g12a: add drive-strength hdmi ddc pins
With the default boot settings, the DDC drive strength is too weak,
set the driver-strengh to 4mA to avoid errors on the DDC line.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Jerome Brunet
a1abafb6cc arm64: dts: meson: sei510: add network support
Enable the network interface of the SEI510 which use the internal PHY.

Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Jerome Brunet
de03860151 arm64: dts: meson: u200: add internal network
The u200 is the main mother board for the S905D2. It can provide
both the internal and external network. However, by default the
resistance required for the external RGMII bus are not fitted, so
enable the internal PHY.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Jerome Brunet
280c17df8f arm64: dts: meson: g12a: add mdio multiplexer
Add the g12a mdio multiplexer which allows to connect to either
an external phy through the SoC pins or the internal 10/100 phy

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:01 -07:00
Jerome Brunet
3293252f11 arm64: dts: meson: g12a: add ethernet pinctrl definitions
Add the ethernet pinctrl settings for RMII, RGMII and internal phy leds

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2019-06-11 15:50:00 -07:00
Miquel Raynal
85e27ed7b6 arm64: dts: marvell: armada-7040-db: Add USB current regulators
Armada 7040-db USB ports deliver 500mA by default while they
could deliver up to 900mA (usually, for USB3 devices).

The board embeds a GPIO controlled regulator on each port which can be
configured to deliver each amount of current.

Add a vin-supply property to the USB3 Vbus nodes for this purpose. The
regulator will be automatically 'enabled', ie. set to limit at 900mA
instead of 500mA.

Suggested-by: Alex Leibovich <alexl@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2019-06-11 13:33:55 +02:00
Clément Péron
dae335bcae
arm64: defconfig: enable Allwinner DMA drivers
Allwinner sun6i DMA drivers is used on A64 and H6 boards.

Enable it as a module.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-06-11 10:28:18 +02:00
Mark Rutland
9b60472205 arm64: mm: avoid redundant READ_ONCE(*ptep)
In set_pte_at(), we read the old pte value so that it can be passed into
checks for racy hw updates. These checks are only performed for
CONFIG_DEBUG_VM, and the value is not used otherwise.

Since we read the pte value with READ_ONCE(), the compiler cannot elide
the redundant read for !CONFIG_DEBUG_VM kernels.

Let's ameliorate matters by moving the read and the checks into a
helper, __check_racy_pte_update(), which only performs the read when the
value will be used. This also allows us to reformat the conditions for
clarity.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-10 13:55:34 +01:00
Christian Brauner
8f3220a806
arch: wire-up clone3() syscall
Wire up the clone3() call on all arches that don't require hand-rolled
assembly.

Some of the arches look like they need special assembly massaging and it is
probably smarter if the appropriate arch maintainers would do the actual
wiring. Arches that are wired-up are:
- x86{_32,64}
- arm{64}
- xtensa

Signed-off-by: Christian Brauner <christian@brauner.io>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Kees Cook <keescook@chromium.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Adrian Reber <adrian@lisas.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: x86@kernel.org
2019-06-09 09:29:46 +02:00
Masahiro Yamada
bd305f259c kconfig: make arch/*/configs/defconfig the default of KBUILD_DEFCONFIG
Until recently, if KBUILD_DEFCONFIG was not set by the arch Makefile,
the default path arch/*/defconfig was used.

The last users of the default are gone by the following commits:

- Commit f3e20ad67b ("s390: move arch/s390/defconfig to
  arch/s390/configs/defconfig")

- Commit 986a13769c ("alpha: move arch/alpha/defconfig to
  arch/alpha/configs/defconfig")

Let's set arch/*/configs/defconfig as a new default. This saves
KBUILD_DEFCONFIG for some architectures.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-09 15:08:18 +09:00
Andy Gross
4b2c7ea8a6 arm64: dts: qcom-qcs404: Add reset-cells to GCC node
This patch adds a reset-cells property to the gcc controller on the QCS404.
Without this in place, we get warnings like the following if nodes reference
a gcc reset:

arch/arm64/boot/dts/qcom/qcs404.dtsi:261.38-310.5: Warning (resets_property):
/soc@0/remoteproc@b00000: Missing property '#reset-cells' in node
/soc@0/clock-controller@1800000 or bad phandle (referred from resets[0])
  also defined at arch/arm64/boot/dts/qcom/qcs404-evb.dtsi:82.18-84.3
  DTC     arch/arm64/boot/dts/qcom/qcs404-evb-4000.dtb
arch/arm64/boot/dts/qcom/qcs404.dtsi:261.38-310.5: Warning (resets_property):
/soc@0/remoteproc@b00000: Missing property '#reset-cells' in node
/soc@0/clock-controller@1800000 or bad phandle (referred from resets[0])
  also defined at arch/arm64/boot/dts/qcom/qcs404-evb.dtsi:82.18-84.3

Signed-off-by: Andy Gross <agross@kernel.org>
2019-06-08 23:21:21 -05:00
Leo Yan
b422b03a38 arm64: dts: qcom-msm8916: Update coresight DT bindings
CoreSight DT bindings have been updated, thus the old compatible strings
are obsolete and the drivers will report warning if DTS uses these
obsolete strings.

This patch switches to the new bindings for CoreSight dynamic funnel,
so can dismiss warning during initialisation.

Cc: Andy Gross <agross@kernel.org>
Cc: David Brown <david.brown@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>
2019-06-08 23:05:51 -05:00
Linus Torvalds
9331b6740f SPDX update for 5.2-rc4
Another round of SPDX header file fixes for 5.2-rc4
 
 These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
 added, based on the text in the files.  We are slowly chipping away at
 the 700+ different ways people tried to write the license text.  All of
 these were reviewed on the spdx mailing list by a number of different
 people.
 
 We now have over 60% of the kernel files covered with SPDX tags:
 	$ ./scripts/spdxcheck.py -v 2>&1 | grep Files
 	Files checked:            64533
 	Files with SPDX:          40392
 	Files with errors:            0
 
 I think the majority of the "easy" fixups are now done, it's now the
 start of the longer-tail of crazy variants to wade through.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull yet more SPDX updates from Greg KH:
 "Another round of SPDX header file fixes for 5.2-rc4

  These are all more "GPL-2.0-or-later" or "GPL-2.0-only" tags being
  added, based on the text in the files. We are slowly chipping away at
  the 700+ different ways people tried to write the license text. All of
  these were reviewed on the spdx mailing list by a number of different
  people.

  We now have over 60% of the kernel files covered with SPDX tags:
	$ ./scripts/spdxcheck.py -v 2>&1 | grep Files
	Files checked:            64533
	Files with SPDX:          40392
	Files with errors:            0

  I think the majority of the "easy" fixups are now done, it's now the
  start of the longer-tail of crazy variants to wade through"

* tag 'spdx-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (159 commits)
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 450
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 449
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 448
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 446
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 445
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 444
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 443
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 442
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 440
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 435
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 434
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 433
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 432
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 431
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 430
  treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 429
  ...
2019-06-08 12:52:42 -07:00
Mauro Carvalho Chehab
cb1aaebea8 docs: fix broken documentation links
Mostly due to x86 and acpi conversion, several documentation
links are still pointing to the old file. Fix them.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Reviewed-by: Bhupesh Sharma <bhsharma@redhat.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-06-08 13:42:13 -06:00
David S. Miller
a6cdeeb16b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Some ISDN files that got removed in net-next had some changes
done in mainline, take the removals.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-07 11:00:14 -07:00
Linus Torvalds
a02a532c2a arm64 fixes for -rc4
- Fix boot crash on platforms with SVE2 due to missing register encoding
 
 - Fix architected timer accessors when CONFIG_OPTIMIZE_INLINING=y
 
 - Move cpu_logical_map into smp.h for use by upcoming irqchip drivers
 
 - Trivial typo fix in comment
 
 - Disable some useless, noisy warnings from GCC 9
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Another round of mostly-benign fixes, the exception being a boot crash
  on SVE2-capable CPUs (although I don't know where you'd find such a
  thing, so maybe it's benign too).

  We're in the process of resolving some big-endian ptrace breakage, so
  I'll probably have some more for you next week.

  Summary:

   - Fix boot crash on platforms with SVE2 due to missing register
     encoding

   - Fix architected timer accessors when CONFIG_OPTIMIZE_INLINING=y

   - Move cpu_logical_map into smp.h for use by upcoming irqchip drivers

   - Trivial typo fix in comment

   - Disable some useless, noisy warnings from GCC 9"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Silence gcc warnings about arch ABI drift
  ARM64: trivial: s/TIF_SECOMP/TIF_SECCOMP/ comment typo fix
  arm64: arch_timer: mark functions as __always_inline
  arm64: smp: Moved cpu_logical_map[] to smp.h
  arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding()
2019-06-07 09:21:48 -07:00
Anshuman Khandual
4745224b45 arm64/mm: Refactor __do_page_fault()
__do_page_fault() is over complicated with multiple goto statements. This
cleans up the code flow and while there drops local variable vm_fault_t.

Reviewed-by: Mark Rutland <Mark.rutland@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-07 14:35:12 +01:00
Anshuman Khandual
c49bd02f4c arm64/mm: Document write abort detection from ESR
This patch adds an is_write_abort() wrapper and documents the detection
of the abort type on cache maintenance operations.

Cc: Will Deacon <will.deacon@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
[catalin.marinas@arm.com: only keep the is_write_abort() wrapper]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-07 14:34:24 +01:00
Odin Ugedal
8e01076afd arm64: Fix comment after #endif
The config value used in the if was changed in
b433dce056, but the comment on the
corresponding end was not changed.

Signed-off-by: Odin Ugedal <odin@ugedal.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-07 10:41:12 +01:00
Dinh Nguyen
9aa0cae1d4 arm64: dts: stratix10: use the "altr,socfpga-stmmac-a10-s10" binding
Because of register and bits difference for setting PHY modes, PTP reference
clock, and FPGA signalling, the Stratix10 SoC needs to use the
"altr,socfpga-stmmac-a10-s10" binding to set the correct modes.

On Stratix10, each EMAC has its own register for PHY modes, and they all have
the same offset, thus we can use the 2nd parameter to specify the offsets
for the FPGA signal bits.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2019-06-06 17:33:36 -05:00
Biju Das
7433f1fb8e arm64: dts: renesas: Add HiHope RZ/G2M sub board support
The HiHope RZ/G2M sub board sits below the HiHope RZ/G2M main board.
This patch also adds ethernet support along with a dtsi common to
both HiHope RZ/G2M and RZ/G2N sub boards.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 15:28:45 +02:00
Biju Das
871c13a443 arm64: dts: renesas: hihope-common: Add pincontrol support to scif2/scif clock
This patch adds pincontrol support to scif2/scif clock.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 15:28:23 +02:00
Biju Das
438419ebd3 arm64: dts: renesas: Add HiHope RZ/G2M main board support
Basic support for the HiHope RZ/G2M main board:
  - Memory,
  - Main crystal,
  - Serial console

This patch also includes a dtsi common to both HiHope RZ/G2M
and RZ/G2N main boards.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 15:28:05 +02:00
Dave Martin
ebcc5928c5 arm64: Silence gcc warnings about arch ABI drift
Since GCC 9, the compiler warns about evolution of the
platform-specific ABI, in particular relating for the marshaling of
certain structures involving bitfields.

The kernel is a standalone binary, and of course nobody would be
so stupid as to expose structs containing bitfields as function
arguments in ABI.  (Passing a pointer to such a struct, however
inadvisable, should be unaffected by this change.  perf and various
drivers rely on that.)

So these warnings do more harm than good: turn them off.

We may miss warnings about future ABI drift, but that's too bad.
Future ABI breaks of this class will have to be debugged and fixed
the traditional way unless the compiler evolves finer-grained
diagnostics.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-06 13:28:45 +01:00
George G. Davis
2b55d83e9a ARM64: trivial: s/TIF_SECOMP/TIF_SECCOMP/ comment typo fix
Fix a s/TIF_SECOMP/TIF_SECCOMP/ comment typo

Cc: Jiri Kosina <trivial@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-06 10:40:05 +01:00
Fabrizio Castro
800037e815 arm64: dts: renesas: r8a774a1: Add operating points
The RZ/G2M (a.k.a. r8a774a1) comes with two clusters of
processors, similarly to the r8a7796.
The first cluster is made of A57s, the second cluster is
made of A53s.

The operating points for the cluster with the A57s are:

 Frequency | Voltage
-----------|---------
 500 MHz   | 0.82V
 1.0 GHz   | 0.82V
 1.5 GHz   | 0.82V

The operating points for the cluster with the A53s are:

 Frequency | Voltage
-----------|---------
 800 MHz   | 0.82V
 1.0 GHz   | 0.82V
 1.2 GHz   | 0.82V

This patch adds the definitions for the operating points
to the SoC specific DT.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:57 +02:00
Simon Horman
70c6d23ea7 arm64: dts: renesas: r8a77990: Add dynamic power coefficient
Describe the dynamic power coefficient of A53 CPUs.

Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:56 +02:00
Dien Pham
8fa7d18f9e arm64: dts: renesas: r8a77990: Create thermal zone to support IPA
Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.

In R-Car Gen3, IPA is supported for only one channel
Reason:
  Currently, IPA controls base on only CPU temperature.
  And only one thermal channel is assembled closest
  CPU cores is selected as target of IPA.
  If other channels are used, IPA controlling is not properly.

A single cooling device is described for all A53 CPUs as this
reflects that physically there is only one cooling device present.

This patch improves on an earlier version by:

* Omitting cooling-max-level and cooling-min-level properties which
  are no longer present in mainline as of v4.17
* Removing an unused trip-point0 node sub-property from the trips
  property.
* Defers adding dynamic-power-coefficient properties to a separate patch as
  these are properties of the CPU.

The long signed-off by chain below reflects many revisions, mainly
internal, that this patch has been through.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:56 +02:00
Simon Horman
eb2cd8c259 arm64: dts: renesas: r8a77965: Add dynamic power coefficient
Describe the dynamic power coefficient of A57 and A53 CPUs.

Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:55 +02:00
Dien Pham
7ec67eddfb arm64: dts: renesas: r8a77965: Create thermal zone to support IPA
Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.

In R-Car Gen3, IPA is supported for only one channel
(on H3/M3/M3N SoCs, it is channel THS3). Reason:
  Currently, IPA controls base on only CPU temperature.
  And only one thermal channel is assembled closest
  CPU cores is selected as target of IPA.
  If other channels are used, IPA controlling is not properly.

The A57 cooling device supports 5 cooling states which can be categorised
as follows:

0 & 1) boost (clocking up)
2)     default
3 & 4) cooling (clocking down)

Currently the thermal framework assumes that the default is the minimum,
or in other words there is no provision for handling boost states.
So this patch only describes the upper 3 states, default and cooling.

A single cooling device is described for all A57 CPUs and a separate
cooling device is described for all A53 CPUs. This reflects that physically
there is only one cooling device present for each type of CPU.

This patch improves on an earlier version by:

* Omitting cooling-max-level and cooling-min-level properties which
  are no longer present in mainline as of v4.17
* Removing an unused trip-point0 node sub-property from the trips
  property.
* Using cooling-device indexes such that maximum refers to maximum cooling
  rather than the inverse.
* Defers adding dynamic-power-coefficient properties to a separate patch as
  these are properties of the CPU.

The long signed-off by chain below reflects many revisions, mainly
internal, that this patch has been through.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: An Huynh <an.huynh.uj@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:54 +02:00
Simon Horman
9fed1b89c0 arm64: dts: renesas: r8a7796: Add dynamic power coefficient
Describe the dynamic power coefficient of A57 and A53 CPUs.

Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:53 +02:00
Dien Pham
81022ecd27 arm64: dts: renesas: r8a7796: Create thermal zone to support IPA
Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.

In R-Car Gen3, IPA is supported for only one channel
 (on H3/M3/M3N SoCs, it is channel THS3). Reason:
  Currently, IPA controls base on only CPU temperature.
  And only one thermal channel is assembled closest
  CPU cores is selected as target of IPA.
  If other channels are used, IPA controlling is not properly.

The A57 cooling device supports 5 cooling states which can be categorised
as follows:

0 & 1) boost (clocking up)
2)     default
3 & 4) cooling (clocking down)

Currently the thermal framework assumes that the default is the minimum,
or in other words there is no provision for handling boost states.
So this patch only describes the upper 3 states, default and cooling.

A single cooling device is described for all A57 CPUs and a separate
cooling device is described for all A53 CPUs. This reflects that physically
there is only one cooling device present for each type of CPU.

This patch improves on an earlier version by:

* Omitting cooling-max-level and cooling-min-level properties which
  are no longer present in mainline as of v4.17
* Removing an unused trip-point0 node sub-property from the trips
  property.
* Using cooling-device indexes such that maximum refers to maximum cooling
  rather than the inverse.
* Defers adding dynamic-power-coefficient properties to a separate patch as
  these are properties of the CPU.

The long signed-off by chain below reflects many revisions, mainly
internal, that this patch has been through.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Hien Dang <hien.dang.eb@rvc.renesas.com>
Signed-off-by: An Huynh <an.huynh.uj@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:53 +02:00
Simon Horman
47e1714ab9 arm64: dts: renesas: r8a7795: Add dynamic power coefficient
Describe the dynamic power coefficient of A57 and A53 CPUs.

Based on work by Gaku Inami <gaku.inami.xw@bp.renesas.com> and others.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:52 +02:00
Dien Pham
15d8cd83b7 arm64: dts: renesas: r8a7795: Create thermal zone to support IPA
Setup a thermal zone driven by SoC temperature sensor.
Create passive trip points and bind them to CPUFreq cooling
device that supports power extension.

In R-Car Gen3, IPA is supported for only one channel
(on H3/M3/M3N SoCs, it is channel THS3). Reason:
  Currently, IPA controls base on only CPU temperature.
  And only one thermal channel is assembled closest
  CPU cores is selected as target of IPA.
  If other channels are used, IPA controlling is not properly.

The A5 cooling device supports 5 cooling states which can be categorised as
follows:

0 & 1) boost (clocking up)
2)     default
3 & 4) cooling (clocking down)

Currently the thermal framework assumes that the default is the minimum,
or in other words there is no provision for handling boost states.
So this patch only describes the upper 3 states, default and cooling.

A single cooling device is described for all A57 CPUs and a separate
cooling device is described for all A53 CPUs. This reflects that physically
there is only one cooling device present for each type of CPU.

This patch improves on an earlier version by:

* Omitting cooling-max-level and cooling-min-level properties which
  are no longer present in mainline as of v4.17
* Removing an unused trip-point0 node sub-property from the trips
  property.
* Using cooling-device indexes such that maximum refers to maximum cooling
  rather than the inverse.
* Defers adding dynamic-power-coefficient properties to a separate patch as
  these are properties of the CPU.

The long signed-off by chain below reflects many revisions, mainly
internal, that this patch has been through.

Signed-off-by: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: Hien Dang <hien.dang.eb@rvc.renesas.com>
Signed-off-by: An Huynh <an.huynh.uj@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:51 +02:00
Yoshihiro Shimoda
7794bd7ed7 arm64: dts: renesas: Revise usb2_phy nodes and phys properties
Since the commit 233da2c9ec ("dt-bindings: phy: rcar-gen3-phy-usb2:
Revise #phy-cells property") revised the #phy-cells, this patch follows
the updated document for R-Car Gen3 and RZ/A2 SoCs.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:50 +02:00
Takeshi Kihara
90d4fa39d0 arm64: dts: renesas: ebisu: Remove renesas, no-ether-link property
It is incorrect to specify the no-ether-link property for the AVB device on
the Ebisu board. This is because the property should only be used when a
board does not provide a proper AVB_LINK signal. However, the Ebisu board
does provide this signal.

As per 87c059e9c3 ("arm64: dts: renesas: salvator-x: Remove renesas,
no-ether-link property") this fixes a bug:

    Steps to reproduce:
    - start AVB TX stream (Using aplay via MSE),
    - disconnect+reconnect the eth cable,
    - after a reconnection the eth connection goes iteratively up/down
      without user interaction,
    - this may heal after some seconds or even stay for minutes.

    As the documentation specifies, the "renesas,no-ether-link" option
    should be used when a board does not provide a proper AVB_LINK signal.
    There is no need for this option enabled on RCAR H3/M3 Salvator-X/XS
    and ULCB starter kits since the AVB_LINK is correctly handled by HW.

    Choosing to keep or remove the "renesas,no-ether-link" option will have
    impact on the code flow in the following ways:
    - keeping this option enabled may lead to unexpected behavior since the
      RX & TX are enabled/disabled directly from adjust_link function
      without any HW interrogation,
    - removing this option, the RX & TX will only be enabled/disabled after
      HW interrogation. The HW check is made through the LMON pin in PSR
      register which specifies AVB_LINK signal value (0 - at low level;
      1 - at high level).

    In conclusion, the present change is also a safety improvement because
    it removes the "renesas,no-ether-link" option leading to a proper way
    of detecting the link state based on HW interrogation and not on
    software heuristic.

Fixes: 8441ef643d ("arm64: dts: renesas: r8a77990: ebisu: Enable EthernetAVB")
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
[simon: updated changelog]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:49 +02:00
Robin Murphy
11290c09e2 arm64: dts: renesas: r8a774c0: Clean up CPU compatibles
Apparently this DTS crossed over with commit 31af04cd60 ("arm64: dts:
Remove inconsistent use of 'arm,armv8' compatible string") and missed
out on the cleanup, so put it right.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:49 +02:00
Magnus Damm
b31b43c92d arm64: dts: renesas: Use ip=on for bootargs
Convert bootargs from ip=dhcp to ip=on

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2019-06-06 10:59:48 +02:00
Elena Petrova
6bd934de1e crypto: arm64/sha2-ce - correct digest for empty data in finup
The sha256-ce finup implementation for ARM64 produces wrong digest
for empty input (len=0). Expected: the actual digest, result: initial
value of SHA internal state. The error is in sha256_ce_finup:
for empty data `finalize` will be 1, so the code is relying on
sha2_ce_transform to make the final round. However, in
sha256_base_do_update, the block function will not be called when
len == 0.

Fix it by setting finalize to 0 if data is empty.

Fixes: 03802f6a80 ("crypto: arm64/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer")
Cc: stable@vger.kernel.org
Signed-off-by: Elena Petrova <lenaptr@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-06-06 14:38:57 +08:00
Elena Petrova
1d4aaf16de crypto: arm64/sha1-ce - correct digest for empty data in finup
The sha1-ce finup implementation for ARM64 produces wrong digest
for empty input (len=0). Expected: da39a3ee..., result: 67452301...
(initial value of SHA internal state). The error is in sha1_ce_finup:
for empty data `finalize` will be 1, so the code is relying on
sha1_ce_transform to make the final round. However, in
sha1_base_do_update, the block function will not be called when
len == 0.

Fix it by setting finalize to 0 if data is empty.

Fixes: 07eb54d306 ("crypto: arm64/sha1-ce - move SHA-1 ARMv8 implementation to base layer")
Cc: stable@vger.kernel.org
Signed-off-by: Elena Petrova <lenaptr@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-06-06 14:38:57 +08:00
Anson Huang
b4e3e54a46 arm64: dts: imx8mm: Move gic node into soc node
GIC is inside of SoC from architecture perspective, it should
be located inside of soc node in DT.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-06 10:47:06 +08:00
Sudeep Holla
f086f67485 arm64: ptrace: add support for syscall emulation
Add PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP support on arm64.
We don't need any special handling for PTRACE_SYSEMU_SINGLESTEP.

It's quite difficult to generalize handling PTRACE_SYSEMU cross
architectures and avoid calls to tracehook_report_syscall_entry twice.
Different architecture have different mechanism to indicate NO_SYSCALL
and trying to generalise adds more code for no gain.

Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-05 17:51:24 +01:00
Sudeep Holla
fd3866381b arm64: add PTRACE_SYSEMU{,SINGLESTEP} definations to uapi headers
x86 and um use 31 and 32 for PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP
while powerpc uses different value maybe for legacy reasons.

Though handling of PTRACE_SYSEMU can be made architecture independent,
it's hard to make these definations generic. To add to this existing
mess few architectures like arm, c6x and sh use 31 for PTRACE_GETFDPIC
(get the ELF fdpic loadmap address). It's not possible to move the
definations to generic headers.

So we unfortunately have to duplicate the same defination to ARM64 if
we need to support PTRACE_SYSEMU and PTRACE_SYSEMU_SINGLESTEP.

Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-05 17:51:22 +01:00
Thomas Gleixner
b886d83c5b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation version 2 of the license

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 315 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Armijn Hemel <armijn@tjaldur.nl>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:17 +02:00
Thomas Gleixner
75a6faf617 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 101 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:15 +02:00
Thomas Gleixner
1d0ea0692a treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 332
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  publishhed by the free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 48 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190530000436.292339952@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:06 +02:00
Thomas Gleixner
97fb5e8d9b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 and
  only version 2 as published by the free software foundation this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 294 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Thomas Gleixner
c9af7f315d treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 252
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation this program is
  distributed as is without any warranty of any kind whether express
  or implied without even the implied warranty of merchantability or
  fitness for a particular purpose see the gnu general public license
  for more details you should have received a copy of the gnu general
  public license along with this program if not see http www gnu org
  licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 2 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141332.617181045@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:30:27 +02:00
Anders Roxell
f31e98bfae arm64: arch_timer: mark functions as __always_inline
If CONFIG_FUNCTION_GRAPH_TRACER is enabled function
arch_counter_get_cntvct() is marked as notrace. However, function
__arch_counter_get_cntvct is marked as inline. If
CONFIG_OPTIMIZE_INLINING is set that will make the two functions
tracable which they shouldn't.

Rework so that functions __arch_counter_get_* are marked with
__always_inline so they will be inlined even if CONFIG_OPTIMIZE_INLINING
is turned on.

Fixes: 0ea415390c ("clocksource/arm_arch_timer: Use arch_timer_read_counter to access stable counters")
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-05 13:24:06 +01:00
Florian Fainelli
262afe92fa arm64: smp: Moved cpu_logical_map[] to smp.h
asm/smp.h is included by linux/smp.h and some drivers, in particular
irqchip drivers can access cpu_logical_map[] in order to perform SMP
affinity tasks. Make arm64 consistent with other architectures here.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-05 13:09:11 +01:00
Dave Martin
78ed70bf3a arm64: cpufeature: Fix missing ZFR0 in __read_sysreg_by_encoding()
In commit 06a916feca ("arm64: Expose SVE2 features for
userspace"), new hwcaps are added that are detected via fields in
the SVE-specific ID register ID_AA64ZFR0_EL1.

In order to check compatibility of secondary cpus with the hwcaps
established at boot, the cpufeatures code uses
__read_sysreg_by_encoding() to read this ID register based on the
sys_reg field of the arm64_elf_hwcaps[] table.

This leads to a kernel splat if an hwcap uses an ID register that
__read_sysreg_by_encoding() doesn't explicitly handle, as now
happens when exercising cpu hotplug on an SVE2-capable platform.

So fix it by adding the required case in there.

Fixes: 06a916feca ("arm64: Expose SVE2 features for userspace")
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-06-05 13:05:28 +01:00
Luca Weiss
84204fb6f2
arm64: dts: allwinner: a64: Add lradc node
Add a node describing the KEYADC on the A64.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-06-05 13:51:29 +02:00
Fabio Estevam
a656622a22 arm64: dts: imx8mm: Move usbphy out of soc node
usbphy nodes do not have any register properties and thus
shouldn't be placed inside the bus.

Move usbphy nodes from soc node to root node in order to fix
the following build warnings with W=1:

arch/arm64/boot/dts/freescale/imx8mm.dtsi:681.27-687.6: Warning (simple_bus_reg): /soc/bus@32c00000/usbphynop1: missing or empty reg/ranges property
arch/arm64/boot/dts/freescale/imx8mm.dtsi:710.27-716.6: Warning (simple_bus_reg): /soc/bus@32c00000/usbphynop2: missing or empty reg/ranges property

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 17:13:17 +08:00
Fabio Estevam
10c7420738 arm64: dts: imx8mm: Pass the 'ranges' property
Pass the 'ranges' property for each one of the AIPS bus in order
to fix the following build warnings:

arch/arm64/boot/dts/freescale/imx8mm.dtsi:209.23-388.5: Warning (unit_address_vs_reg): /soc/bus@30000000: node has a unit name, but
no reg property
arch/arm64/boot/dts/freescale/imx8mm.dtsi:390.23-439.5: Warning (unit_address_vs_reg): /soc/bus@30400000: node has a unit name, but
no reg property
arch/arm64/boot/dts/freescale/imx8mm.dtsi:441.23-658.5: Warning (unit_address_vs_reg): /soc/bus@30800000: node has a unit name, but
no reg property
arch/arm64/boot/dts/freescale/imx8mm.dtsi:660.23-724.5: Warning (unit_address_vs_reg): /soc/bus@32c00000: node has a unit name, but
no reg property

This also aligns with imx8mq.dtsi.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 17:12:29 +08:00
Fabio Estevam
951c1d37f6 arm64: dts: imx8mm: Pass a unit name for the 'soc' node
The 'soc' name needs a unit name to match its 'ranges' property.

Pass the unit name in order to fix the following dtc build warning
with W=1:

arch/arm64/boot/dts/freescale/imx8mm.dtsi:203.6-754.4: Warning (unit_address_vs_reg): /soc: node has a reg or ranges property, but no unit name

This also aligns with imx8mq.dtsi.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 17:11:06 +08:00
Angus Ainslie (Purism)
a01194d756 arm64: dts: fsl: imx8mq: add the snvs power key node
Add a node for the snvs power key, "disabled" by default.

Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 17:05:18 +08:00
Thierry Reding
846137c6a1 arm64: tegra: Add pin control states for I2C on Tegra186
Two of the Tegra I2C controllers share pads with the DPAUX controllers.
In order for the I2C controllers to use these pads, they have to be set
into I2C mode. Use the I2C and off pin control states defined in the DT
nodes for DPAUX as "default" and "idle" states, respectively. This
ensures that the I2C controller driver can properly configure the pins
when it needs to perform I2C transactions.

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-05 10:18:56 +02:00
Joseph Lo
5298166d47 arm64: tegra: Add CPU cache topology for Tegra186
Tegra186 has two CPU clusters with its own cache hierarchy. This patch
adds them with the cache information of each of the CPUs.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-05 10:18:56 +02:00
Thierry Reding
c4502cc3a1 arm64: tegra: Add VCC supply for GPIO expanders on Jetson TX2
The GPIO expanders on Jetson TX2 are powered by the VDD_1V8 and
VDD_3V3_SYS supplies, respectively. Model this in device tree so that
the correct supplies are referenced.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-05 10:18:53 +02:00
Chuanhua Han
57aa1bc7d1 arm64: dts: ls1028a: fix watchdog device node
ls1028a platform uses sp805 watchdog, and use 1/16 platform clock as
timer clock, this patch fix device tree node.

Signed-off-by: Chuanhua Han <chuanhua.han@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 15:17:22 +08:00
Peng Ma
3cdf65300f arm64: dts: ls1028a: Enable sata.
Change the sata node to enable sata.

Signed-off-by: Peng Ma <peng.ma@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 14:18:07 +08:00
Peng Fan
ef9ed87e82 arm64: dts: imx: add i.MX8QXP ocotp support
Add i.MX8QXP ocotp node

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Anson Huang <anson.huang@nxp.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 14:14:54 +08:00
Anson Huang
db9693aa76 arm64: dts: imx8qxp: Move watchdog node into scu node
i.MX system controller watchdog has pretimeout function which
depends on i.MX SCU driver, so it should be a subnode of SCU.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2019-06-05 14:10:57 +08:00
Anshuman Khandual
6168103600 arm64/mm: Drop task_struct argument from __do_page_fault()
The task_struct argument is not getting used in __do_page_fault(). Hence
just drop it and use current or cuurent->mm instead where ever required.
This does not change any functionality.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-04 15:26:47 +01:00
Anshuman Khandual
a0509313d5 arm64/mm: Drop mmap_sem before calling __do_kernel_fault()
There is an inconsistency between down_read_trylock() success and failure
paths while dealing with kernel access for non exception table areas where
it calls __do_kernel_fault(). In case of failure it just bails out without
holding mmap_sem but when it succeeds it does so while holding mmap_sem.
Fix this inconsistency by just dropping mmap_sem in success path as well.

__do_kernel_fault() calls die_kernel_fault() which then calls show_pte().
show_pte() in this path might become bit more unreliable without holding
mmap_sem. But there are already instances [1] in do_page_fault() where
die_kernel_fault() gets called without holding mmap_sem. show_pte() can
be made more robust independently but in a later patch.

[1] Conditional block for (is_ttbr0_addr && is_el1_permission_fault)

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-04 15:26:18 +01:00
Anshuman Khandual
01de1776f6 arm64/mm: Identify user instruction aborts
We don't currently set the FAULT_FLAG_INSTRUCTION mm flag for EL0
instruction aborts. This has no functional impact, as we don't override
arch_vma_access_permitted(), and the default implementation always returns
true. However, it would be helpful to provide the flag so that it can be
consumed by tracepoints such as dax_pmd_fault.

This patch sets the FAULT_FLAG_INSTRUCTION flag for EL0 instruction aborts.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-04 14:55:15 +01:00
Anshuman Khandual
87dedf7c61 arm64/mm: Change BUG_ON() to VM_BUG_ON() in [pmd|pud]_set_huge()
There are no callers for the functions which will pass unaligned physical
addresses. Hence just change these BUG_ON() checks into VM_BUG_ON() which
gets compiled out unless CONFIG_VM_DEBUG is enabled.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-04 14:53:18 +01:00
Liu Song
2e6aee5af3 arm64: kernel: use aff3 instead of aff2 in comment
Should use aff3 instead of aff2 in comment.

Signed-off-by: Liu Song <liu.song11@zte.com.cn>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-04 14:51:01 +01:00
Julien Grall
27e6e7d63f arm64/cpufeature: Convert hook_lock to raw_spin_lock_t in cpu_enable_ssbs()
cpu_enable_ssbs() is called via stop_machine() as part of the cpu_enable
callback. A spin lock is used to ensure the hook is registered before
the rest of the callback is executed.

On -RT spin_lock() may sleep. However, all the callees in stop_machine()
are expected to not sleep. Therefore a raw_spin_lock() is required here.

Given this is already done under stop_machine() and the work done under
the lock is quite small, the latency should not increase too much.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-06-04 14:48:26 +01:00
Akash Gajjar
45fa7c3838 arm64: dts: rockchip: add WiFi+BT support on ROCK Pi4 board
Rock Pi 4 has a on board AP6256 WiFi/BT Module. enable wifi and bluetooth
support on Rock Pi 4 board.

Signed-off-by: Akash Gajjar <akash@openedev.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2019-06-04 15:38:54 +02:00