ARM: imx: only select ARM_ERRATA_814220 for ARMv7-A

i.MX7D is supported for either the v7-A or the v7-M cores,
but the latter causes a warning:

WARNING: unmet direct dependencie

ARM: imx: only select ARM_ERRATA_814220 for ARMv7-A

i.MX7D is supported for either the v7-A or the v7-M cores,
but the latter causes a warning:

WARNING: unmet direct dependencies detected for ARM_ERRATA_814220
Depends on [n]: CPU_V7 [=n]
Selected by [y]:
- SOC_IMX7D [=y] && ARCH_MXC [=y] && (ARCH_MULTI_V7 [=n] || ARM_SINGLE_ARMV7M [=y])

Make the select statement conditional.

Fixes: 4562fa4c86c9 ("ARM: imx: Enable ARM_ERRATA_814220 for i.MX6UL and i.MX7D")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Enable ARM_ERRATA_814220 for i.MX6UL and i.MX7D

ARM_ERRATA_814220 has below description:

The v7 ARM states that all cache and branch predictor maintenance
operations t

ARM: imx: Enable ARM_ERRATA_814220 for i.MX6UL and i.MX7D

ARM_ERRATA_814220 has below description:

The v7 ARM states that all cache and branch predictor maintenance
operations that do not specify an address execute, relative to
each other, in program order.
However, because of this erratum, an L2 set/way cache maintenance
operation can overtake an L1 set/way cache maintenance operation.
This ERRATA only affected the Cortex-A7 and present in r0p2, r0p3,
r0p4, r0p5.

i.MX6UL and i.MX7D have Cortex-A7 r0p5 inside, need to enable
ARM_ERRATA_814220 for proper workaround.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These file

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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ARM: imx: fix dependencies on imx7ulp

The i.MX7D configuration was reworked, but that change did
not get propagated into the newly added i.MX7ULP, which now
produces a Kconfig warnin

ARM: imx: fix dependencies on imx7ulp

The i.MX7D configuration was reworked, but that change did
not get propagated into the newly added i.MX7ULP, which now
produces a Kconfig warning:

WARNING: unmet direct dependencies detected for HAVE_ARM_ARCH_TIMER
Depends on [n]: CPU_V7 [=n]
Selected by [y]:
- SOC_IMX7ULP [=y] && ARCH_MXC [=y] && (ARCH_MULTI_V7 [=n] || ARM_SINGLE_ARMV7M [=y])

Change it to work the same way as i.MX7D.

Fixes: 1a1f919eb52e ("ARM: imx: Provide support for NXP i.MX7D Cortex-M4")
Fixes: de70d0e9d43d ("ARM: imx: add initial support for imx7ulp")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: add initial support for imx7ulp

The i.MX 7ULP family of processors features NXP's advanced implementation
of the Arm Cortex-A7 core, the Arm Cortex-M4 core, as well as a 3D and

ARM: imx: add initial support for imx7ulp

The i.MX 7ULP family of processors features NXP's advanced implementation
of the Arm Cortex-A7 core, the Arm Cortex-M4 core, as well as a 3D and 2D
Graphics Processing Units (GPUs).

This patch aims to add an initial support for imx7ulp. Note that we need
configure power mode to Partial Stop mode 3 with system/bus clock enabled
first as the default enabled STOP mode will gate off system/bus clock when
execute WFI in MX7ULP SoC.

And there's still no MXC_CPU_IMX7ULP IDs read from register as ULP has no
anatop as before. So we encode one with 0xff in reverse order in case new
ones will be in the future.

Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Provide support for NXP i.MX7D Cortex-M4

Cortex M4 part can be started from a boot loader or over
Linux remoteproc framework.

Signed-off-by: Oleksij Rempel <o.rempel@p

ARM: imx: Provide support for NXP i.MX7D Cortex-M4

Cortex M4 part can be started from a boot loader or over
Linux remoteproc framework.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: select imx6sll pinctrl when imx6sll enabled

select imx6sll pinctrl driver if imx6sll config is enabled.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Shawn

ARM: imx: select imx6sll pinctrl when imx6sll enabled

select imx6sll pinctrl driver if imx6sll config is enabled.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: select ARM_CPU_SUSPEND for CPU_IDLE as well

The cpuidle support calls cpu_suspend(), which is compiled conditionally,
and fails to link unless something selects CONFIG_ARM_CPU_

ARM: imx: select ARM_CPU_SUSPEND for CPU_IDLE as well

The cpuidle support calls cpu_suspend(), which is compiled conditionally,
and fails to link unless something selects CONFIG_ARM_CPU_SUSPEND.

arch/arm/mach-imx/cpuidle-imx6sx.o: In function `imx6sx_enter_wait':
cpuidle-imx6sx.c:(.text+0x6c): undefined reference to `cpu_suspend'

This adds an explicit select statement here.

Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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ARM: imx: Add basic msl support for imx6sll

Add basic MSL support for i.MX6SLL.

The i.MX 6SoloLiteLite application processors are NXP's latest
additions to a growing family of m

ARM: imx: Add basic msl support for imx6sll

Add basic MSL support for i.MX6SLL.

The i.MX 6SoloLiteLite application processors are NXP's latest
additions to a growing family of multimedia-focused products
offering high-performance processing optimized for lowest power
consumption. The i.MX 6SoloLiteLite processors feature NXP's advanced
implementation of the ARM Cortex-A9 core, which can be interfaced
with LPDDR3 and LPDDR2 DRAM memory devices.

Signed-off-by: Bai Ping <ping.bai@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Remove epit support

Currently there is no user of EPIT, so remove such unused code.

If someone wants to add EPIT support back, then the person needs to
create a proper

ARM: imx: Remove epit support

Currently there is no user of EPIT, so remove such unused code.

If someone wants to add EPIT support back, then the person needs to
create a proper support into drivers/clocksource/ and add device
tree support, proper bindings, etc.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Select GPCv2 for i.MX7

GPCv2 IP block is a part of i.MX7 SoC. Select it to make corresponding
driver availible to support DT changes following this patch.

Cc: yurovsky

ARM: imx: Select GPCv2 for i.MX7

GPCv2 IP block is a part of i.MX7 SoC. Select it to make corresponding
driver availible to support DT changes following this patch.

Cc: yurovsky@gmail.com
Cc: Dong Aisheng <aisheng.dong@nxp.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Drop errata 769419 for Vybrid

According to the datasheet, VF610 uses revision r3p2 of the L2C-310
block, same as i.MX6Q+, which does not require a software workaround for
A

ARM: imx: Drop errata 769419 for Vybrid

According to the datasheet, VF610 uses revision r3p2 of the L2C-310
block, same as i.MX6Q+, which does not require a software workaround for
ARM errata 769419.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: select PCI_DOMAINS config from ARCH_MULTIPLATFORM

PCI_DOMAINS config should be selected for any SoCs
having more than a single PCIe controller. Without PCI_DOMAINS
config, only

ARM: select PCI_DOMAINS config from ARCH_MULTIPLATFORM

PCI_DOMAINS config should be selected for any SoCs
having more than a single PCIe controller. Without PCI_DOMAINS
config, only one PCIe controller gets registered.

Select PCI_DOMAINS in ARCH_MULTIPLATFORM if PCI is selected, since
it doesn't harm even if a platform has a single PCIe port.
Also remove PCI_DOMAINS being selected from other platform
specific configs.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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ARM: imx: no need to select SMP_ON_UP explicitly

SMP_ON_UP is already defaulted to "y" and has all dependencies expressed
- no need to select it per platform level

Signed-off-by

ARM: imx: no need to select SMP_ON_UP explicitly

SMP_ON_UP is already defaulted to "y" and has all dependencies expressed
- no need to select it per platform level

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: i.MX: Move SOC_IMX1 into 'Device tree only'

This patch moves SOC_IMX1 into 'Device tree only' category and renames
imx1-dt.c to mach-imx1.c to align with the name schema of other

ARM: i.MX: Move SOC_IMX1 into 'Device tree only'

This patch moves SOC_IMX1 into 'Device tree only' category and renames
imx1-dt.c to mach-imx1.c to align with the name schema of other
i.MX DT only platforms.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: i.MX: Remove i.MX1 non-DT support

This patch removes registration helpers and support files,
used for non-DT i.MX1 targets.

Signed-off-by: Alexander Shiyan <shc_work@mail.r

ARM: i.MX: Remove i.MX1 non-DT support

This patch removes registration helpers and support files,
used for non-DT i.MX1 targets.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: i.MX: Remove i.MX1 Synertronixx SCB9328 board support

Synertronixx SCB9328 board is very similar to Armadeus APF9328,
so it can be easily reimplemented in DT way.
This patch rem

ARM: i.MX: Remove i.MX1 Synertronixx SCB9328 board support

Synertronixx SCB9328 board is very similar to Armadeus APF9328,
so it can be easily reimplemented in DT way.
This patch removes support for non-DT support for this board.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: i.MX: Remove i.MX1 Armadeus APF9328 board support

mach-apf9328.c can be replaced with devicetree equivalent: imx1-apf9328.dts,
so remove the board file.

Signed-off-by: Alex

ARM: i.MX: Remove i.MX1 Armadeus APF9328 board support

mach-apf9328.c can be replaced with devicetree equivalent: imx1-apf9328.dts,
so remove the board file.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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Merge tag 'imx-cleanup-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/cleanup

The i.MX cleanup for 4.8:
- A series from Arnd to clean up cpu_is_mx*() fro

Merge tag 'imx-cleanup-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/cleanup

The i.MX cleanup for 4.8:
- A series from Arnd to clean up cpu_is_mx*() from i.MX platform
- A series from Andrey to clean up i.MX L2-cache code by using
core support as much as possible
- Remove the orphan header eukrea-baseboards.h from i.MX platform
- Remove boilerplate code from TZIC driver by using IRQCHIP_DECLARE

* tag 'imx-cleanup-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: remove cpu_is_mx*()
ARM: imx: remove last call to cpu_is_mx5*
ARM: imx: rework mx27_pm_init() call
ARM: imx: deconstruct mx3_idle
ARM: imx: deconstruct mxc_rnga initialization
ARM: imx: remove cpu_is_mx1 check
ARM: i.MX: Do not explicitly call l2x0_of_init()
ARM: i.MX: system.c: Tweak prefetch settings for performance
ARM: i.MX: system.c: Replace magic numbers
ARM: i.MX: system.c: Remove redundant errata 752271 code
ARM: i.MX: system.c: Convert goto to if statement
ARM: imx: Use IRQCHIP_DECLARE for TZIC
ARM: imx: Remove orphan header

Signed-off-by: Olof Johansson <olof@lixom.net>

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ARM: imx: deconstruct mxc_rnga initialization

The rnga platform device is initialized for all imx31 machines
from its own initcall, but is never initialized anywhere else.

This

ARM: imx: deconstruct mxc_rnga initialization

The rnga platform device is initialized for all imx31 machines
from its own initcall, but is never initialized anywhere else.

This moves the platform device creation into both the imx31
dt and non-dt machine init sequences, which has basically the
exact same effect as before, but makes it more obvious what
is going on, while reducing the amount of code and removing
the last user of cpu_is_mx31().

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB

This replaces:

- "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can
now be selected directly.

- "s

ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB

This replaces:

- "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can
now be selected directly.

- "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB
is now selectable by everyone, so we need not declare our
intent to select it.

When ordering the symbols the following rationale was used:
if the selects were in alphabetical order, I moved select GPIOLIB
to be in alphabetical order, but if the selects were not
maintained in alphabetical order, I just replaced
"select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB".

Cc: Michael Büsch <m@bues.ch>
Cc: arm@kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

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ARM: imx: always use TWD on IMX6Q

There is no reason to limit the TWD to be used on SMP kernels only if the
hardware has it available.
On Wandboard i.MX6SOLO, running PREEMPT-RT and

ARM: imx: always use TWD on IMX6Q

There is no reason to limit the TWD to be used on SMP kernels only if the
hardware has it available.
On Wandboard i.MX6SOLO, running PREEMPT-RT and cyclictest I see as max
immediately after start in idle:
UP : ~90us
SMP: ~50us
UP + TWD: ~20us.
Based on this numbers I prefer the TWD over the slightly slower MXC
timer.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: select ARM_CPU_SUSPEND only for imx6

i.MX only needs to select ARM_CPU_SUSPEND manually for the
very specific case that CONFIG_PM_SLEEP is disabled and imx6
is used with CO

ARM: imx: select ARM_CPU_SUSPEND only for imx6

i.MX only needs to select ARM_CPU_SUSPEND manually for the
very specific case that CONFIG_PM_SLEEP is disabled and imx6
is used with CONFIG_PM enabled for runtime PM.

If we are building a kernel only for CPUs that are not using
the cpu_suspend() helper, we otherwise get a harmless
build warning:

warning: (ARCH_MXC && SOC_IMX23 && SOC_IMX28 && ARCH_PXA && MACH_MVEBU_V7 && ARCH_OMAP3 && ARCH_OMAP4 && SOC_OMAP5 && SOC_AM33XX && SOC_DRA7XX && ARCH_EXYNOS3 && ARCH_EXYNOS4 && EXYNOS5420_MCPM &&
EXYNOS_CPU_SUSPEND && ARCH_VEXPRESS_TC2_PM && ARM_BIG_LITTLE_CPUIDLE && ARM_HIGHBANK_CPUIDLE && QCOM_PM) selects ARM_CPU_SUSPEND which has unmet direct dependencies (ARCH_SUSPEND_POSSIBLE)

This moves the option to the SOC_IMX6 option that actually
requires it, in effect reverting commit f36b594f3754 ("ARM:
mach-imx: Select ARM_CPU_SUSPEND at ARCH_MXC level") that was
meant as a cleanup and unintentionally caused this warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: enable big endian mode

Enable ARM big-endian mode on mach-imx. This requires adding some
byte swapping in the debug functions (which otherwise hang forever)
and of course t

ARM: imx: enable big endian mode

Enable ARM big-endian mode on mach-imx. This requires adding some
byte swapping in the debug functions (which otherwise hang forever)
and of course the secondary core bringup.

Tested (on top of 4.4) on i.MX6 HummingBoard quad-core (IMX6Q).

The patch is pretty much as suggested by Arnd Bergmann, thanks!

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7D

i.MX7D Supported ARCH Timer.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.o

ARM: imx: select HAVE_ARM_ARCH_TIMER if selected i.MX7D

i.MX7D Supported ARCH Timer.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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