ARM: Kconfig: clean up platform selection

The top-level platform selection is mostly meaningless these days after
almost everything is sorted below the CONFIG_ARCH_MULTIPLATFORM, with
the only excep

ARM: Kconfig: clean up platform selection

The top-level platform selection is mostly meaningless these days after
almost everything is sorted below the CONFIG_ARCH_MULTIPLATFORM, with
the only exception being the 20+ year old StrongARM based machines.

Make this more consistent by removing the entire choice statement and
moving the StrongARM specific options into regular platform specific
Kconfig files.

The three platforms (footbridge, rpc and sa1100) are still mutually
exclusive and cannot coexist with other ARMv4/v5 machines, but since
there are only three of them and we will not add more, this can be
expressed using Kconfig 'depends on' statements.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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ARM: imx: Kconfig: Fix indentation

The convention for indentation seems to be a single tab. Help text is
further indented by an additional two whitespaces. Fix the lines that
violate these rules.

W

ARM: imx: Kconfig: Fix indentation

The convention for indentation seems to be a single tab. Help text is
further indented by an additional two whitespaces. Fix the lines that
violate these rules.

While at it, replace separator tabs with whitespaces.

Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: rework endianess selection

Choosing big-endian vs little-endian kernels in Kconfig has not worked
correctly since the introduction of CONFIG_ARCH_MULTIPLATFORM a long
time ago.

The problems is

ARM: rework endianess selection

Choosing big-endian vs little-endian kernels in Kconfig has not worked
correctly since the introduction of CONFIG_ARCH_MULTIPLATFORM a long
time ago.

The problems is that CONFIG_BIG_ENDIAN depends on
ARCH_SUPPORTS_BIG_ENDIAN, which can set by any one platform
in the config, but would actually have to be supported by all
of them.

This was mostly ok for ARMv6/ARMv7 builds, since these are BE8 and
tend to just work aside from problems in nonportable device drivers.
For ARMv4/v5 machines, CONFIG_BIG_ENDIAN and CONFIG_ARCH_MULTIPLATFORM
were never set together, so this was disabled on all those machines
except for IXP4xx.

As IXP4xx can now become part of ARCH_MULTIPLATFORM, it seems better to
formalize this logic: all ARMv4/v5 platforms get an explicit dependency
on being either big-endian (ixp4xx) or little-endian (the rest). We may
want to fix ixp4xx in the future to support both, but it does not work
in LE mode at the moment.

For the ARMv6/v7 platforms, there are two ways this could be handled

a) allow both modes only for platforms selecting
'ARCH_SUPPORTS_BIG_ENDIAN' today, but only LE mode for the
others, given that these were added intentionally at some
point.

b) allow both modes everwhere, given that it was already possible
to build that way by e.g. selecting ARCH_VIRT, and that the
list is not an accurate reflection of which platforms may or
may not work.

Out of these, I picked b) because it seemed slighly more logical
to me.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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ARM: imx: Add initial support for i.MXRT10xx family

The i.MXRT10xx family of processors features NXP's implementation of the
Arm Cortex-M7 core and in some case the Arm Cortex-M4 core too.

This pat

ARM: imx: Add initial support for i.MXRT10xx family

The i.MXRT10xx family of processors features NXP's implementation of the
Arm Cortex-M7 core and in some case the Arm Cortex-M4 core too.

This patch aims to add an initial support for imxrt.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
[Jesse: removed SOC_IMXRT's 'depends on ARCH_MULTI_V7' and 'select
ARM_GIC if ARCH_MULTI_V7']
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: remove dead left-over from i.MX{27,31,35} removal

The commits:

commit 879c0e5e0ac7 ("ARM: imx: Remove i.MX27 board files")
commit c93197b0041d ("ARM: imx: Remove i.MX31 board files")

ARM: imx: remove dead left-over from i.MX{27,31,35} removal

The commits:

commit 879c0e5e0ac7 ("ARM: imx: Remove i.MX27 board files")
commit c93197b0041d ("ARM: imx: Remove i.MX31 board files")
commit e1324ece2af4 ("ARM: imx: Remove i.MX35 board files")

remove the config MACH_MX27_3DS, MACH_MX31_3DS and MACH_MX35_3DS.
Commit a542fc18168c ("ARM: imx31: Remove remaining i.MX31 board code")
further removes arch/arm/mach-imx/3ds_debugboard.{c,h}. So, only some
dead left-over in Kconfig and Makefile remains.

Remove this remaining left-over.

This issue was identified with ./scripts/checkkconfigsymbols.py,
which warns on references to the non-existing configs
MACH_MX{27,31,35}_3DS in ./arch/arm/mach-imx/Kconfig.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Kconfig: Fix typo in help

Fix typo from i.MX31 to i.MX35 in i.MX35's help.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Fabio Estevam <festevam@gmail.c

ARM: imx: Kconfig: Fix typo in help

Fix typo from i.MX31 to i.MX35 in i.MX35's help.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Remove imx device directory

arch/arm/mach-imx/devices/ contains utilities for registering devices
in board file. Now that board files are gone, get rid of the devices
directory.

Signed-of

ARM: imx: Remove imx device directory

arch/arm/mach-imx/devices/ contains utilities for registering devices
in board file. Now that board files are gone, get rid of the devices
directory.

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

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ARM: imx: Remove iomux-v3 board code

IMX_HAVE_IOMUX_V3 was only used by i.MX25/35 board files. Since the
board files users are gone, it is safe to remove iomux-v3 related
code.

Signed-off-by: Fabio

ARM: imx: Remove iomux-v3 board code

IMX_HAVE_IOMUX_V3 was only used by i.MX25/35 board files. Since the
board files users are gone, it is safe to remove iomux-v3 related
code.

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

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ARM: imx27: Remove iomux-v1 board code

IMX_HAVE_IOMUX_V1 was only used by i.MX27 board files. Since the
board files users are gone, it is safe to remove iomux-v1 related
code.

Signed-off-by: Fabio

ARM: imx27: Remove iomux-v1 board code

IMX_HAVE_IOMUX_V1 was only used by i.MX27 board files. Since the
board files users are gone, it is safe to remove iomux-v1 related
code.

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

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ARM: imx: Remove i.MX35 board files

i.MX35 has basic device tree support.

To achieve the goal of converting all i.MX SoCs to a
devicetree-only platform, remove imx35 board files.

Signed-off-by: Fa

ARM: imx: Remove i.MX35 board files

i.MX35 has basic device tree support.

To achieve the goal of converting all i.MX SoCs to a
devicetree-only platform, remove imx35 board files.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Remove i.MX31 board files

i.MX31 has basic device tree support.

To achieve the goal of converting all i.MX SoCs to a
devicetree-only platform, remove imx31 board files.

Signed-off-by: Fa

ARM: imx: Remove i.MX31 board files

i.MX31 has basic device tree support.

To achieve the goal of converting all i.MX SoCs to a
devicetree-only platform, remove imx31 board files.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Remove i.MX27 board files

i.MX27 has basic device tree support.

To achieve the goal of converting all i.MX SoCs to a
devicetree-only platform, remove imx27 board files.

Signed-off-by: Fa

ARM: imx: Remove i.MX27 board files

i.MX27 has basic device tree support.

To achieve the goal of converting all i.MX SoCs to a
devicetree-only platform, remove imx27 board files.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Remove imx21 support

mx21 has not been converted to device tree yet and there is only
one single board that is supported (imx21ads).

To achieve the goal of converting all i.MX SoCs to
dev

ARM: imx: Remove imx21 support

mx21 has not been converted to device tree yet and there is only
one single board that is supported (imx21ads).

To achieve the goal of converting all i.MX SoCs to
devicetree-only platforms, remove imx21 support.

If someone is interested in supporting imx21, patches to add
imx21 devicetree support will be welcome.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: Place "Cortex-A/Cortex-M" comment in the correct location

The menu comment "Cortex-A/Cortex-M asymmetric multiprocessing platforms"
appears when running:

make imx_v4_v5_defconfig
make men

ARM: imx: Place "Cortex-A/Cortex-M" comment in the correct location

The menu comment "Cortex-A/Cortex-M asymmetric multiprocessing platforms"
appears when running:

make imx_v4_v5_defconfig
make menuconfig

System Type --->
[*] Freescale i.MX family --->

This is not correct as imx_v4_v5_defconfig does not select any Cortex-A
or Cortex-M platforms.

Move the comment under the correct symbol ifdefery to fix this problem.

Fixes: 8064887e02fd ("ARM: vf610: enable Cortex-M4 configuration on Vybrid SoC")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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ARM: imx: limit errata selection to Cortex-A9 based designs

The two erratas 754322 and 775420 are Cortex-A9 specific. The i.MX 6UL
SoCs include a Cortex-A7 CPU and hence do not need this erratas ena

ARM: imx: limit errata selection to Cortex-A9 based designs

The two erratas 754322 and 775420 are Cortex-A9 specific. The i.MX 6UL
SoCs include a Cortex-A7 CPU and hence do not need this erratas enabeld.
This patch moves the errata selection from the family Kconfig symbol to
the SoC specifc Kconfig symbols where a Cortex-A9 is used.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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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_E

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 that do not specify a

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 files fall under the project

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 warning:

WARNING: unm

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 2D
Graphics

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@pengutronix.de>
Signe

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 Guo <shawnguo@kerne

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_SUSPEND.

ar

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 multimedia-focused pr

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 support into driver

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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