17042 Commits

Author SHA1 Message Date
Chen Lifu
a52ef778ff arm64: smp: Add missing prototype for some smp.c functions
In commit eb631bb5bf5b
("arm64: Support arch_irq_work_raise() via self IPIs") a new
function "arch_irq_work_raise" was added without a prototype.

In commit d914d4d49745
("arm64: Implement panic_smp_self_stop()") a new
function "panic_smp_self_stop" was added without a prototype.

We get the following warnings on W=1:
arch/arm64/kernel/smp.c:842:6: warning: no previous prototype
for ‘arch_irq_work_raise’ [-Wmissing-prototypes]
arch/arm64/kernel/smp.c:862:6: warning: no previous prototype
for ‘panic_smp_self_stop’ [-Wmissing-prototypes]

Fix the warnings by:
1. Adding the prototype for 'arch_irq_work_raise' in irq_work.h
2. Adding the prototype for 'panic_smp_self_stop' in smp.h

Signed-off-by: Chen Lifu <chenlifu@huawei.com>
Link: https://lore.kernel.org/r/20210329034343.183974-1-chenlifu@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-29 10:41:42 +01:00
Yoshihiro Shimoda
bbbf6db5a0 arm64: dts: renesas: r8a779a0: Fix PMU interrupt
Should use PPI No.7 for the PMU. Otherwise, the perf command didn't
show any information.

Fixes: 834c310f5418 ("arm64: dts: renesas: Add Renesas R8A779A0 SoC support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20210325041949.925777-1-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2021-03-29 10:51:04 +02:00
Kieran Bingham
7c47212766 arm64: dts: renesas: r8a779a0: Add VSPD support
Provide VSPD support on the R-Car V3U SoC.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20210322172919.1154686-3-kieran.bingham+renesas@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2021-03-29 10:51:04 +02:00
Kieran Bingham
e91bb1464d arm64: dts: renesas: r8a779a0: Add FCPVD support
Provide FCPVD support for the R-Car V3U SoC.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://lore.kernel.org/r/20210322172919.1154686-2-kieran.bingham+renesas@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2021-03-29 10:51:04 +02:00
Kieran Bingham
9d68a38664 arm64: dts: renesas: falcon-cpu: Add GP LEDs
Three general purpose LEDs are provided on the Falcon CPU board.

Connect GP_LED1, GP_LED2, and GP_LED3 to the gpio-leds frameworks as
indicator LEDs.

These LEDs are arranged in a block of four LEDs on the board itself, but
the fourth LED is as yet unidentified.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/20210322172013.1152121-1-kieran.bingham+renesas@ideasonboard.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2021-03-29 10:50:30 +02:00
Oliver Stäbler
5cfad4f458 arm64: dts: imx8mm/q: Fix pad control of SD1_DATA0
Fix address of the pad control register
(IOMUXC_SW_PAD_CTL_PAD_SD1_DATA0) for SD1_DATA0_GPIO2_IO2.  This seems
to be a typo but it leads to an exception when pinctrl is applied due to
wrong memory address access.

Signed-off-by: Oliver Stäbler <oliver.staebler@bytesatwork.ch>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Fixes: c1c9d41319c3 ("dt-bindings: imx: Add pinctrl binding doc for imx8mm")
Fixes: 748f908cc882 ("arm64: add basic DTS for i.MX8MQ")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 10:18:43 +08:00
Michael Walle
51c8eaa1b7 arm64: dts: fsl-ls1028a-kontron-sl28: add rtc0 alias
For completeness, add the rtc0 alias.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:55:32 +08:00
Michael Walle
c75dc98b58 arm64: dts: ls1028a: move rtc alias to individual boards
The aliases are board-specific and shouldn't be included in the common
SoC dtsi. Move them over to the boards.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:55:19 +08:00
Michael Walle
b353553592 arm64: dts: fsl-ls1028a-kontron-sl28: combine unused partitions
The failsafe partitions for the DP firmware and for AT-F are unused. If
AT-F will ever be supported in the failsafe mode, then it will be a FIT
image. Thus fold the unused partitions into the failsafe bootloader one
to have enough storage if the bootloader image will grow.

While at it, remove the reserved partition. It served no purpose other
than having no hole in the map.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Michael Walle
aa4943300e arm64: dts: fsl-ls1028a-kontron-sl28: move MTD partitions
Move the MTD partitions to the partitions subnode. This is the new way
to specify the partitions, see
  Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Fabio Estevam
798a1807ab arm64: dts: imx8mp-evk: Improve the Ethernet PHY description
According to the datasheet RTL8211, it must be asserted low for at least
10ms and at least 72ms "for internal circuits settling time" before
accessing the PHY registers.

Add properties to describe such requirements.

Reported-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Sebastian Krzyszkowiak
a362b0cc94 arm64: dts: imx8mq-librem5-r3: Mark buck3 as always on
Commit 99e71c029213 ("arm64: dts: imx8mq-librem5: Don't mark buck3 as always on")
removed always-on marking from GPU regulator, which is great for power
saving - however it introduces additional i2c0 traffic which can be deadly
for devices from the Dogwood batch.

To workaround the i2c0 shutdown issue on Dogwood, this commit marks
buck3 as always-on again - but only for Dogwood (r3).

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Guido Günther
7fffadcf72 arm64: dts: imx8mq-librem5: Hog the correct gpio
There was an additional alias in the specifier it hogged line 27
instead of line 1.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Russell King
312a461485 arm64: dts: lx2160a-clearfog-itx: add SFP support
Add 2x2 SFP+ cage support for clearfog-itx boards.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Teresa Remmet
846f752866 arm64: dts: imx8mp-phyboard-pollux-rdk: Change debug UART
With the first redesign the debug UART had changed from
UART2 to UART1.
As the first hardware revision is considered as alpha and
will not be supported in future. The old setup will not
be preserved.

Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Kuldeep Singh
f29fa74453 arm64: dts: imx8mn: Reorder flexspi clock-names entry
Reorder flexspi clock-names entry to make it compliant with bindings.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Kuldeep Singh
9eaf998422 arm64: dts: imx8mm: Reorder flexspi clock-names entry
Reorder flexspi clock-names entry to make it compliant with bindings.

Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Vladimir Oltean
2c832fe41a arm64: dts: ls1028a: set up the real link speed for ENETC port 2
In NXP LS1028A there is a MAC-to-MAC internal link between enetc_port2
and mscc_felix_port4. This link operates at 2.5Gbps and is described as
such for the mscc_felix_port4 node.

The reason for the discrepancy is a limitation in the PHY library
support for fixed-link nodes. Due to the fact that the PHY library
registers a software PHY which emulates the clause 22 register map, the
drivers/net/phy/fixed_phy.c driver only supports speeds up to 1Gbps.

The mscc_felix_port4 node is probed by DSA, which does not use the PHY
library directly, but phylink, and phylink has a different representation
for fixed-link nodes, one that does not have the limitation of not being
able to represent speeds > 1Gbps.

Since the enetc driver was converted to phylink too as of commit
71b77a7a27a3 ("enetc: Migrate to PHYLINK and PCS_LYNX"), the limitation
has been practically lifted there too, and we can describe the real link
speed in the device tree now.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Adrien Grassein
4eac5e728b arm64: dts: imx8mm-nitrogen-r2: add ecspi2 support
Add the description for ecspi2 support.

Signed-off-by: Adrien Grassein <adrien.grassein@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
307fd14d4b arm64: dts: imx: add imx8qm mek support
The i.MX8QuadMax is a Dual (2x) Cortex-A72 and Quad (4x) Cortex-A53
proccessor with powerful graphic and multimedia features.
This patch adds i.MX8QuadMax MEK board support.

Note that MX8QM needs a special workaround for TLB flush due to a SoC
errata, otherwise there may be random crash if enable both clusters of
A72 and A53. As the errata workaround is still not in mainline, so we
disable A72 cluster first for MX8QM MEK.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
f2180be18a arm64: dts: imx: add imx8qm common dts file
The i.MX8QuadMax is a Dual (2x) Cortex-A72 and Quad (4x) Cortex-A53
proccessor with powerful graphic and multimedia features. It uses
the same architecture as MX8QXP, so many SS can be reused.
This patch adds i.MX8QuadMax SoC dtsi file.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
3ccc3515ba arm64: dts: imx8qm: add dma ss support
The DMA SS of MX8QM is mostly the same as the DMA part in MX8QXP ADMA SS
while it has one more instance for each of LPUART, ADC and LPI2C. And unlike
MX8QXP that flexcan clocks are shared between multiple CAN instances,
MX8QM has separate flexcan clock slice.

So we reuse the most part of common imx8-ss-dma.dtsi and add new things
based on it.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
35f4e9d753 arm64: dts: imx8: split adma ss into dma and audio ss
amda ss is consisted of dma and audio ss in qxp which are
also used in qm.
Let's split them into two ss for better code reuse.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
3a3e72f1ed arm64: dts: imx8qm: add conn ss support
The CONN SS of MX8QM is mostly the same as MX8QXP except it has one more
USB HSIC module support. So we can fully reuse the exist CONN SS dtsi.
Add <soc>-ss-conn.dtsi with compatible string updated according to
imx8-ss-conn.dtsi.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
d486c5b60e arm64: dts: imx8qm: add lsio ss support
The LSIO SS of MX8QM is exactly the same as MX8QXP. So we can fully
reuse the exist LSIO SS dtsi. Add <soc>-ss-lsio.dtsi with compatible
string updated according to imx8-ss-lsio.dtsi.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
16c4ea7501 arm64: dts: imx8: switch to new lpcg clock binding
switch to new lpcg clock binding

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
26de33a1e2 arm64: dts: imx8: switch to two cell scu clock binding
switch to two cell scu clock binding

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
e783b6bc89 arm64: dts: imx8: add adma lpcg clocks
Add adma lpcg clocks

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
9de8a22675 arm64: dts: imx8: add conn lpcg clocks
Add conn lpcg clocks

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
438ae46b8e arm64: dts: imx8: add lsio lpcg clocks
Add lsio lpcg clocks

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
0dcd27bda2 arm64: dts: imx8qxp: orginize dts in subsystems
MX8 SoC is comprised of a few HW subsystems while some of them can be
reused in the different SoCs. So let's re-orginize them into subsystems
in device tree as well for the possible reuse of the common part.

Note, as there's still no devices of hsio subsys, so removed it
first instead of creating a subsys headfile with no devices.
They will be added back when new devices added.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
b1484229a5 arm64: dts: imx8qxp: move scu pd node before scu clock node
SCU clock depends on SCU Power domain. Moving scu pd node before
scu clock can save a hundred of defer probes of all system devices
which depends on power domain and clocks.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Dong Aisheng
c75c6d5840 arm64: dts: imx8qxp: add fallback compatible string for scu pd
According to binding doc, add the fallback compatible string for
scu pd.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Peng Fan
36133cb5db arm64: dts: imx8mp: add wdog2/3 nodes
There is wdog[2,3] in i.MX8MP, so add them.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Heiko Thiery
5dbadc8482 arm64: dts: fsl: add support for Kontron pitx-imx8m board
The Kontron pitx-imx8m board is based on an i.MX8MQ soc.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:49:57 +08:00
Michael Walle
94c586e594 arm64: configs: enable FlexTimer alarm timer
This driver is used on Layerscape SoCs to wake up the system from
standby. It works in conjunction with the RCPM driver. The latter is
only available as a builtin.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:36:16 +08:00
Fabio Estevam
6937d8c71f arm64: configs: Select REALTEK_PHY as built-in
On the i.MX8MP EVK board there is a RTL8211 EThernet PHY and
a typical use case is to boot via NFS. In this case the Ethernet
PHY driver needs to be built-in, so select the driver as built-in
by default.

Reported-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2021-03-29 09:02:42 +08:00
Mark Rutland
5cd6fa6de5 arm64: setup: name tcr register
In __cpu_setup we conditionally manipulate the TCR_EL1 value in x10
after previously using x10 as a scratch register for unrelated temporary
variables.

To make this a bit clearer, let's move the TCR_EL1 value into a named
register `tcr`. To simplify the register allocation, this is placed in
the highest available caller-saved scratch register, tcr.

Following the example of `mair`, we initialise the register with the
default value prior to any feature discovery, and write it to MAIR_EL1
after all feature discovery is complete, which allows us to simplify the
featuere discovery code.

The existing `mte_tcr` register is no longer needed, and is replaced by
the use of x10 as a temporary, matching the rest of the MTE feature
discovery assembly in __cpu_setup. As x20 is no longer used, the
function is now AAPCS compliant, as we've generally aimed for in our
assembly functions.

There should be no functional change as as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210326180137.43119-3-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-28 18:23:01 +01:00
Mark Rutland
776e49af60 arm64: setup: name mair register
In __cpu_setup we conditionally manipulate the MAIR_EL1 value in x5
before later reusing x5 as a scratch register for unrelated temporary
variables.

To make this a bit clearer, let's move the MAIR_EL1 value into a named
register `mair`. To simplify the register allocation, this is placed in
the highest available caller-saved scratch register, x17. As it is no
longer clobbered by other usage, we can write the value to MAIR_EL1 at
the end of the function as we do for TCR_EL1 rather than part-way though
feature discovery.

There should be no functional change as as a result of this patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210326180137.43119-2-mark.rutland@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-28 18:23:01 +01:00
Mark Brown
b07f349966 arm64: stacktrace: Move start_backtrace() out of the header
Currently start_backtrace() is a static inline function in the header.
Since it really shouldn't be sufficiently performance critical that we
actually need to have it inlined move it into a C file, this will save
anyone else scratching their head about why it is defined in the header.
As far as I can see it's only there because it was factored out of the
various callers.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210319174022.33051-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-28 18:09:47 +01:00
Chunfeng Yun
016381f3c1 arm64: dts: mt8183: update wakeup register offset
Use wakeup control register offset exactly, and update revision
number

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/1616482975-17841-13-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-28 13:43:04 +02:00
Aswath Govindraju
9437499086 arm64: dts: ti: k3-j7200: Add support for higher speed modes and update delay select values for MMCSD subsystems
The following speed modes are now supported in J7200 SoC,
- HS200 and HS400 modes at 1.8 V card voltage, in MMCSD0 subsystem [1].
- UHS-I speed modes in MMCSD1 subsystem [1].

Add support for UHS-I modes by adding voltage regulator device tree nodes
and corresponding pinmux details, to power cycle and voltage switch cards.
Set respective tags in sdhci0 and remove no-1-8-v tag from sdhci1
device tree nodes.

Also update the delay values for various speed modes supported, based on
the revised january 2021 J7200 datasheet[2].

[1] - section 12.3.6.1.1 MMCSD Features, in
      https://www.ti.com/lit/ug/spruiu1a/spruiu1a.pdf,
      (SPRUIU1A – JULY 2020 – REVISED JANUARY 2021)

[2] - https://www.ti.com/lit/ds/symlink/dra821u.pdf,
      (SPRSP57B – APRIL 2020 – REVISED JANUARY 2021)

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Link: https://lore.kernel.org/r/20210326064120.31919-4-a-govindraju@ti.com
2021-03-26 18:10:35 -05:00
Faiz Abbas
f4cc7daf46 arm64: dts: ti: k3-j7200-common-proc-board: Disable unused gpio modules
There are 6 gpio instances inside SoC with 2 groups as show below:
    Group one: wkup_gpio0, wkup_gpio1
    Group two: main_gpio0, main_gpio2, main_gpio4, main_gpio6

Only one instance from each group can be used at a time. So use main_gpio0
and wkup_gpio0 in current linux context and disable the rest of the nodes.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20210326064120.31919-3-a-govindraju@ti.com
2021-03-26 18:10:35 -05:00
Faiz Abbas
e0b2e6af39 arm64: dts: ti: k3-j7200: Add gpio nodes
There are 4 instances of gpio modules in main domain:
	gpio0, gpio2, gpio4 and gpio6

Groups are created to provide protection between different processor
virtual worlds. Each of these modules I/O pins are muxed within the
group. Exactly one module can be selected to control the corresponding
pin by selecting it in the pad mux configuration registers.

This group in main domain pins out 69 lines (5 banks). Add DT modes for
each module instance in the main domain.

Similar to the gpio groups in main domain, there is one gpio group in
wakeup domain with 2 module instances in it.

The gpio group pins out 72 pins (6 banks) of the first 85 gpio lines. Add
DT nodes for each module instance in the wakeup domain.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20210326064120.31919-2-a-govindraju@ti.com
2021-03-26 18:10:35 -05:00
Linus Torvalds
eb3991ef2c ARM: SoC fixes for v5.12
Too many fixes have accumulated in the soc tree, so this is a fairly
 large set. As usual, most of the fixes are for devicetree files, but
 there are also notable code changes for imx and omap regressions as
 well as some maintainer file updates.
 
 imx:
  - Fix an Ethernet issue on imx6ul-14x14-evk board that is caused by
    independent PHY reset.
 
  - Add missing `dma-coherent` property for LayerScape device trees to fix a
    kernel BUG report.
 
  - Use IRQCHIP_DECLARE for AVIC driver to fix a boot issue on i.MX25 with
    fw_devlink=on.
 
  - Add missing I2C pinctrl entry for imx8mp-phyboard-pollux-rdk board to
    fix the broken I2C GPIO recovery support.
 
  - Add `fsl,use-minimum-ecc` property for imx6ull-myir-mys-6ulx-eval
    device tree to fix UBI filesystem mount failure.
 
 at91:
  - wrong phy address that blocks Ethernet use on boards with sama5d27 SoM1
 
  - restrictive pin possibilities for sam9x60
 
 omap:
  - Fix ocp interconnect bus access error reporting for omap_l3_noc by
    setting IRQF_NO_THREAD
 
  - Fix changed mmc slot order regression by adding mmc aliases for am335x
 
  - Fix dra7 reboot regression caused by invalid pcie reset map
 
  - Fix smartreflex init regression caused by dropped legacy data
 
  - Fix ti-sysc driver warning on unbind if reset is not deasserted
 
  - Fix flakey reset deassert for dra7 iva
 
 stm32:
  - MAINTAINER file updates
 
 broadcom:
  - brcmstb SoC ID build fix
 
  - MAINTAINER file updates
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'soc-fixes-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Too many fixes have accumulated in the soc tree, so this is a fairly
  large set. As usual, most of the fixes are for devicetree files, but
  there are also notable code changes for imx and omap regressions as
  well as some maintainer file updates.

  imx:
   - Fix an Ethernet issue on imx6ul-14x14-evk board that is caused by
     independent PHY reset.

   - Add missing `dma-coherent` property for LayerScape device trees to
     fix a kernel BUG report.

   - Use IRQCHIP_DECLARE for AVIC driver to fix a boot issue on i.MX25
     with fw_devlink=on.

   - Add missing I2C pinctrl entry for imx8mp-phyboard-pollux-rdk board
     to fix the broken I2C GPIO recovery support.

   - Add `fsl,use-minimum-ecc` property for imx6ull-myir-mys-6ulx-eval
     device tree to fix UBI filesystem mount failure.

  at91:
   - wrong phy address that blocks Ethernet use on boards with sama5d27
     SoM1

   - restrictive pin possibilities for sam9x60

  omap:
   - Fix ocp interconnect bus access error reporting for omap_l3_noc by
     setting IRQF_NO_THREAD

   - Fix changed mmc slot order regression by adding mmc aliases for
     am335x

   - Fix dra7 reboot regression caused by invalid pcie reset map

   - Fix smartreflex init regression caused by dropped legacy data

   - Fix ti-sysc driver warning on unbind if reset is not deasserted

   - Fix flakey reset deassert for dra7 iva

  stm32:
   - MAINTAINER file updates

  broadcom:
   - brcmstb SoC ID build fix

   - MAINTAINER file updates"

* tag 'soc-fixes-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  MAINTAINERS: Add Alain Volmat as STM32 I2C/SMBUS maintainer
  MAINTAINERS: Remove Vincent Abriou for STM/STI DRM drivers.
  MAINTAINERS: Update some st.com email addresses to foss.st.com
  ARM: dts: imx6ull: fix ubi filesystem mount failed
  ARM: imx6ul-14x14-evk: Do not reset the Ethernet PHYs independently
  arm64: dts: imx8mp-phyboard-pollux-rdk: Add missing pinctrl entry
  arm64: dts: ls1012a: mark crypto engine dma coherent
  arm64: dts: ls1043a: mark crypto engine dma coherent
  arm64: dts: ls1046a: mark crypto engine dma coherent
  ARM: imx: avic: Convert to using IRQCHIP_DECLARE
  ARM: dts: at91: sam9x60: fix mux-mask to match product's datasheet
  ARM: dts: at91: sam9x60: fix mux-mask for PA7 so it can be set to A, B and C
  ARM: dts: at91-sama5d27_som1: fix phy address to 7
  soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva
  bus: ti-sysc: Fix warning on unbind if reset is not deasserted
  ARM: OMAP2+: Fix smartreflex init regression after dropping legacy data
  soc: ti: omap-prm: Fix reboot issue with invalid pcie reset map for dra7
  MAINTAINERS: rectify BROADCOM PMB (POWER MANAGEMENT BUS) DRIVER
  ARM: dts: am33xx: add aliases for mmc interfaces
  bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD
2021-03-26 11:19:38 -07:00
Vladimir Murzin
18107f8a2d arm64: Support execute-only permissions with Enhanced PAN
Enhanced Privileged Access Never (EPAN) allows Privileged Access Never
to be used with Execute-only mappings.

Absence of such support was a reason for 24cecc377463 ("arm64: Revert
support for execute-only user mappings"). Thus now it can be revisited
and re-enabled.

Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210312173811.58284-2-vladimir.murzin@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-26 09:37:23 +00:00
Linus Torvalds
43f0b56259 arm64 fixes for -rc5
- Fix possible memory hotplug failure with KASLR
 
 - Fix FFR value in SVE kselftest
 
 - Fix backtraces reported in /proc/$pid/stack
 
 - Disable broken CnP implementation on NVIDIA Carmel
 
 - Typo fixes and ACPI documentation clarification
 
 - Fix some W=1 warnings
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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:
 "Minor fixes all over, ranging from typos to tests to errata
  workarounds:

   - Fix possible memory hotplug failure with KASLR

   - Fix FFR value in SVE kselftest

   - Fix backtraces reported in /proc/$pid/stack

   - Disable broken CnP implementation on NVIDIA Carmel

   - Typo fixes and ACPI documentation clarification

   - Fix some W=1 warnings"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kernel: disable CNP on Carmel
  arm64/process.c: fix Wmissing-prototypes build warnings
  kselftest/arm64: sve: Do not use non-canonical FFR register value
  arm64: mm: correct the inside linear map range during hotplug check
  arm64: kdump: update ppos when reading elfcorehdr
  arm64: cpuinfo: Fix a typo
  Documentation: arm64/acpi : clarify arm64 support of IBFT
  arm64: stacktrace: don't trace arch_stack_walk()
  arm64: csum: cast to the proper type
2021-03-25 11:07:40 -07:00
Linus Walleij
4f30ba1cce arm64: barrier: Remove spec_bar() macro
The spec_bar() macro was introduced in
commit bd4fb6d270bc ("arm64: Add support for SB barrier and patch in over DSB; ISB sequences")
as a way for C to insert a speculation barrier and was then
used in one single place: set_fs().

Later on
commit 3d2403fd10a1 ("arm64: uaccess: remove set_fs()")
deleted set_fs() altogether and as noted in the commit
on the new path the regular sb() assembly macro will
be used.

Delete the remnant.

Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20210325141304.1607595-1-linus.walleij@linaro.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-25 18:05:46 +00:00
Suman Anna
7dd847523e arm64: dts: ti: k3-am642-evm/sk: Add IPC sub-mailbox nodes
Add the sub-mailbox nodes that are used to communicate between MPU and
various remote processors present in the AM64x SoCs for the AM642 EVM
and AM642 SK boards. These include the R5F remote processors in the two
dual-R5F clusters (MAIN_R5FSS0 & MAIN_R5FSS1) in the MAIN domain; and a
M4 processor in the MCU safety island.

These sub-mailbox nodes utilize the System Mailbox clusters 2, 4 and 6.
The remaining clusters 3, 5 and 7 are currently not used, and so are
disabled. Clusters 0 and 1 were never added to the dts file as they do
not support interrupts towards the A53 core.

The sub-mailbox nodes added match the hard-coded mailbox configuration
used within the TI RTOS IPC software packages. The R5F processor
sub-systems are assumed to be running in Split mode, so a sub-mailbox
node is used by each of the R5F cores. Only the sub-mailbox node for
the first R5F core in each cluster is used in case of a Single-CPU mode
for that R5F cluster.

NOTE:
The cluster nodes only have the Mailbox IP interrupt outputs that are
routed to the GIC_SPI. The sub-mailbox nodes' irq-id are indexing into
the listed interrupts, with the usr-id using the actual interrupt output
line number from the Mailbox IP.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Gowtham Tammana <g-tammana@ti.com>
Link: https://lore.kernel.org/r/20210322185430.957-4-s-anna@ti.com
2021-03-25 11:59:55 -05:00
Suman Anna
ef15257614 arm64: dts: ti: k3-am64-main: Add mailbox cluster nodes
The AM64 MAIN domain contains a Mailbox IP instance with multiple
clusters, and is a variant of the IP on current AM65x and J721E
SoCs. The AM64x SoC has only 8 clusters with no interrupts routed
to the A53 core on the first 2 clusters. The interrupt outputs
from the IP do not go through any Interrupt Routers and are
hard-wired to each processor, with only couple of interrupts
from each cluster reaching the A53 core.

Add all the Mailbox clusters that generate interrupts towards the
A53 core as their own nodes under the cbass_main node instead of
creating an almost empty parent node for the Mailbox IP and the
clusters as its child nodes. All these nodes are enabled by default
in the base dtsi file, but any cluster that does not define any
child sub-mailbox nodes should be disabled in the corresponding
board dts files.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Gowtham Tammana <g-tammana@ti.com>
Link: https://lore.kernel.org/r/20210322185430.957-3-s-anna@ti.com
2021-03-25 11:59:55 -05:00