ARM: shmobile: R-Mobile: Move pm-rmobile to drivers/soc/renesas/

The pm-rmobile driver is really a driver for the System Controller
(SYSC) found in R-Mobile SoCs. An equivalent driver for R-Car SoCs is
already located under drivers/soc/renesas/.

Hence move the pm-rmobile driver from arch/arm/mach-shmobile/ to
drivers/soc/renesas/, and rename it to rmobile-sysc.

Enable compile-testing on non-ARM and non-R-Mobile SoCs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Add basic RZ/A2 SoC support

Add the RZ/A2 SoC to the Renesas SoC collection.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: rcar-gen2: Stop compiling headsmp-apmu on !SMP

As of commit cad160ed0a94927e ("ARM: shmobile: Convert file to use
cntvoff"), there's no non-SMP code left in headsmp-apmu.S.

Hence build the file for SMP only, and drop the no longer needed check
for CONFIG_SMP inside the file.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7779: Remove explicit SYSC config and init

If the R-Car H1 system controller is described in DT, the rcar-sysc
driver configures SYSCIER and SYSCIMR based on the SoC-specific power
area definitions in r8a7779-sysc. The platform code still passed this
information to the rcar-sysc driver, for compatibility with old DTBs
predating commit b2df3aa487395a1b ("ARM: dts: r8a7779: Add SYSC PM
Domains") in v4.7. The time has come to drop backwards compatibility,
and delegate everything to the DT enabled rcar-sysc driver.

After stopping powering down secondary CPUs during early boot, there is
no longer a need to force an early initialization of the rcar-sysc
driver. It will be initialized in time for secondary CPU bringup by its
early_initcall().

Hence all explicit SYSC configuration and initialization can be removed
from the R-Car H1 platform code.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791: Use common R-Car Gen2 machine definition

Now r8a7791 no longer needs the SMP initialization fallback, it can use
the common R-Car Gen2 machine definition, and the r8a7791-specific one
can be removed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791: Remove legacy SMP fallback code

As of commit f89a51700d7ae0ef ("ARM: shmobile: r8a7791: Prioritize DT
APMU support") in v4.8, non-DT enablement of SMP was left as a fallback
for backwards compatibility with old DTBs.

The time has come to drop backwards compatibility, hence remove the
fallback code.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7790: Use common R-Car Gen2 machine definition

Now r8a7790 no longer needs the SMP initialization fallback, it can use
the common R-Car Gen2 machine definition, and the r8a7790-specific one
can be removed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7790: Remove legacy SMP fallback code

As of commit f5d70b9cee2282ec ("ARM: shmobile: r8a7790: Prioritize DT
APMU support") in v4.8, non-DT enablement of SMP was left as a fallback
for backwards compatibility with old DTBs.

The time has come to drop backwards compatibility, hence remove the
fallback code.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.

For non */uapi/* files that summary was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139

and resulted in the first patch in this series.

If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:

SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930

and resulted in the second patch in this series.

- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:

SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1

and that resulted in the third patch in this series.

- when the two scanners agreed on the detected license(s), that became
the concluded license(s).

- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.

- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).

- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.

- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct

This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

ARM: shmobile: rcar-gen2: Make sure CNTVOFF is initialized on CA7/15

On Cortex-A7, the arch timer CNTVOFF register is uninitialized.
Ideally it should be initialized by the boot loader, but it isn't.

For the boot CPU, CNTVOFF is initialized by Linux since commit
9ce3fa6816c2fb59 ("ARM: shmobile: rcar-gen2: Add CA7 arch_timer
initialization for r8a7794").
For secondary CPU cores, no such initialization is done.

Hence when enabling SMP on r8a7794, the kernel log is spammed with:

WARNING: Underflow in clocksource 'arch_sys_counter' observed, time update ignored.
Please report this, consider using a different clocksource, if possible.
Your kernel is probably still fine.

As Marc Zyngier pointed out that Cortex-A15 and Cortex-A7 are similar with
respect to CNTVOFF, we have been very lucky this just worked on R-Car
Gen2 SoCs with Cortex-A15 cores.

To fix this:
- Move the existing inline asm code to initialize CNTVOFF to an
assembler source file (adding comments and replacing hardcoded
constants by definitions in the process), so it can be reused,
- Perform the initialization of CNTVOFF on the boot CPU (Cortex-A15 or
Cortex-A7) on all R-Car Gen2 and RZ/G1 parts,
- Wrap the standard secondary_startup() routine inside a routine which
initializes CNTVOFF.

Based on patches by Hisashi Nakamura in the BSP.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Consolidate R8A7743 and R8A779[234] machine definitions

The four SoCs use identical machine operations, consolidate them into
two machine definitions in a single file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7743: basic SoC support

Add minimal support for the RZ/G1M (R8A7743) SoC.

Based on the original (and large) patch by Dmitry Shifrin
<dmitry.shifrin@cogentembedded.com>.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7792: basic SoC support

Add minimal support for the R-Car V2H (R8A7792) SoC.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

cpufreq: shmobile: Use generic platdev driver

The cpufreq-dt-platdev driver supports creation of cpufreq-dt platform
device now, reuse that and remove similar code from platform code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

soc: renesas: Move pm-rcar to drivers/soc/renesas/rcar-sysc

Move the pm-rcar driver from arch/arm/mach-shmobile/ to
drivers/soc/renesas/, and its header file to include/linux/soc/renesas/,
so it can be shared between arm32 (R-Car H1 and Gen2) and arm64 (R-Car
Gen3). Rename it to rcar-sysc as it's really a driver for the R-Car
System Controller (SYSC).

Kill the intermediate PM_RCAR config symbol, as it's not user
configurable anymore, and to prepare for SoC-specific make rules.

Add the missing #include <linux/types.h> to rcar-sysc.h, which was
exposed by different include order.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7778: remove legacy clock implementation

Bock-W was the last legacy clock platform, so this also removes the
common legacy clock code.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: bockw: remove legacy board file and config

Replaced by multi-platform.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: bockw: remove "reference" board file and config

Replaced by multi-platform.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove obsolete custom earlyprintk code

The last caller of shmobile_setup_console() was removed in commit
44d88c754e57a6d9 ("ARM: shmobile: Remove legacy SoC code for R-Mobile
A1").

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Fix mismerges

Turns out I fumbled a couple of the merge resolutions for marzen board removal.

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

ARM: shmobile: r8a7779: Remove legacy SoC code

Now when the Marzen legacy board code is gone this patch
removes the unused r8a7779 legacy SoC code.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: marzen: Remove legacy board code

Remove Marzen legacy board code written in C. Instead
board support expressed in DT shall be used together
with Multiplatform and shmobile_defconfig.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: marzen-reference: Remove C board code

The generic r8a7779 machine vector is now feature-wise equivalent
to the Marzen-reference case, so simply remove the Marzen C board
code to fall over on the generic r8a7779 machine vector.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: gose: enable R-Car Gen2 regulator quirk

Regulator setup seems identical to Koelsch.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Basic r8a7793 SoC support

Minimal support without power management or SMP.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove legacy SoC code for R-Mobile A1

The last user of the R-Mobile A1 (r8a7740) legacy SoC code was the
Armadillo-800 EVA legacy board code, which has been removed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
[horms: resolved trivial conflicts with v4.2-rc1]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove legacy board code for Armadillo-800 EVA

The Armadillo-800 EVA board is sufficiently supported by DT-based and
board-less R-Mobile A1 (r8a7740) multiplatform kernels, and board
staging code. Hence remove the legacy board code to reduce maintenance
effort.

Lacking areas are:
- USB (it doesn't work in legacy, neither),
- HDMI (it doesn't work in legacy, neither),
- Camera (we don't care),
- DMAC/IPMMU (no DT bindings are planned).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove legacy SoC code for SH-Mobile AG5

The last user of the SH-Mobile AG5 (sh73a0) legacy SoC code was the
KZM-A9-GT legacy board code, which has been removed.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove legacy board code for KZM-A9-GT

The KZM-A9-GT board is sufficiently supported by DT-based and board-less
SH-Mobile AG5 (sh73a0) multiplatform kernels. Hence remove the legacy
board code to reduce maintenance effort.

Lacking areas are:
- USB (it does't work in legacy, neither),
- LCDC (the LCDC is wired to the legacy INTC, which is not planned to
be supported with DT).
- DMAC/IPMMU (no DT bindings are planned).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: cpuidle: Remove the pointless default driver

The default idle driver uses one state with the WFI instruction.
The default idle routine invokes WFI when no cpuidle driver is present.

The default cpuidle driver is pointless and does not give more than the
default idle routine and moreover it pulls all the mathematics tied with
the cpuidle governor for nothing, hence consuming more energy.

Remove the default driver, the related code and register the driver directly.

[compiled only - no board - no test]

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Consolidate the pm code for R-Car Gen2

The pm code for R-Car Gen2 is scatterd in each SoC. These files
(pm-r8a7790.c/pm-r8a7791.c) have some overlap code. This change
consolidate the pm code for R-Car Gen2 into one.

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: R-Car Gen2: Add da9063/da9210 regulator quirk

The r8a7790/lager and r8a7791/koelsch development boards have da9063 and
da9210 regulators. Both regulators have their interrupt request lines
tied to the same interrupt pin (IRQ2) on the SoC.

After cold boot or da9063-induced restart, both the da9063 and da9210
seem to assert their interrupt request lines. Hence as soon as one
driver requests this irq, it gets stuck in an interrupt storm, as it
only manages to deassert its own interrupt request line, and the other
driver hasn't installed an interrupt handler yet.

To handle this, install a quirk that masks the interrupts in both the
da9063 and da9210. This quirk has to run after the i2c master driver
has been initialized, but before the i2c slave drivers are initialized.
As it depends on i2c, select I2C if one of the affected platforms is
enabled in the kernel config.

On koelsch, the following happens:

- Cold boot or reboot using the da9063 restart handler:

IRQ2 is asserted, installing da9063/da9210 regulator quirk
...
i2c i2c-6: regulator_quirk_notify: 1, IRQC_MONITOR = 0x3fb
i2c 6-0058: regulator_quirk_notify: 1, IRQC_MONITOR = 0x3fb
i2c 6-0058: Detected da9063
i2c 6-0058: Masking da9063 interrupt sources
i2c 6-0068: regulator_quirk_notify: 1, IRQC_MONITOR = 0x3fb
i2c 6-0068: Detected da9210
i2c 6-0068: Masking da9210 interrupt sources
i2c 6-0068: IRQ2 is not asserted, removing quirk

- Warm boot (reset button):

rcar_gen2_regulator_quirk: IRQ2 is not asserted, not installing quirk

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a73a4: Remove legacy code

All r8a73a4 boards are now used with multiplatform kernels only. We can
remove all the unused r8a73a4 legacy device and clock registration code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: kzm9g-reference: Remove board C code and DT file

Now that the sh73a0 generic multiplatform case has the same feature set
as the kzm9g DT reference board code, we get rid of the latter.
DT reference code in the future shall make use of the sh73a0
multiplatform support code with the generic SoC machine vector.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: sh73a0: Add Multiplatform support

Enable sh73a0 Multiplatform support for the generic sh73a0
machine vector. No board support is enabled, and the board
code for KZM9G DT Reference is left by itself.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: sh7372: Remove Legacy C SoC code

Remove support for the legacy Cortex-A8 based sh7372 SoC.

The Linux kernel still lacks DT bindings for the sh7372 INTC
interrupt controller so DT multiplatform support is not possibile.

Also, the sh7372 SoC never went into mass production anyway so to
aid migration to DT multiplatform simply get rid of sh7372 support.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: mackerel: Remove Legacy C board code

Remove legacy C code for the sh7372 Mackerel board. There is no
DT multiplatform implementation available for the sh7372 SoC so
simply phase out the board and SoC code support.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a73a4: ape6evm: Remove legacy platform

This removes the remains of the legacy ape6evm platform.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: ape6evm-reference: Remove board C code and DT file

Now that the r8a73a4 generic multiplatform case has the same features as the
APE6EVM DT reference board code, we get rid of the latter. DT reference
code in the future shall make use of the r8a73a4 multiplatform support code
with the generic SoC machine vector.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[geert: Update Documentation/devicetree/bindings/arm/shmobile.txt]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7790: Remove legacy code

All r8a7790 boards are now used with multiplatform kernels only. We can
remove all the unused r8a7790 legacy device and clock registration code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: lager: Remove legacy board support

Lager legacy support level is same as the DT case
so remove the legacy code and force people to move
over to using Multiplatform and DT.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
[Remove lager_defconfig and don't build the dtb for legacy kernels]
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: lager-reference: DTS-only board support

Remove redundant C board code for Lager Multiplatform,
everything is supported via DT these days anyway so it
is fine to rely on the MACHINE_START in setup-r8a7790.c.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
[Remove CONFIG_MACH_LAGER from shmobile_defconfig]
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: always build rcar setup for armv7

In a combined ARMv6/v7 kernel, the setup-rcar-gen2.c cannot
currently be compiled correctly because it uses the isb
instruction that is not available on ARMv6. Adding the
-march=armv7-a flag lets the compiler know that it is safe
to build this file for ARMv7.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: koelsch: Remove reference board code

The Koelsch board is supported by the r8a7791 generic DT platform
definition. Remove the board-specific definition along with its board
file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791: Remove legacy code

All r8a7791 boards are now used with multiplatform kernels only. We can
remove all the unused r8a7791 legacy device and clock registration code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: koelsch: Remove legacy C board code

All features supported by the Koelsch legacy C board code are now
supported by the multiplatform code, it's thus time to say bye to the
legacy code. Nobody should miss it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove shmobile_clk_workaround() implementation

The function isn't used or needed anymore, remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r8a7794 SoC support

Initial support for the r8a7794 SoC, based on work by Hisashi Nakamura.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: armadillo800eva reference: Remove C board code

Now when the r8a7740 generic multiplatform case has the same
features as the DT reference board code then get rid of the
Armadillo800EVA DT reference C board code. DT Reference code
in the future shall make use of the r8a7740 Multiplatform
support code with the generic SoC machine vector.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Cleanup pm-rmobile.o build using Kconfig

Add a CONFIG_PM_RMOBILE entry and enable it for R-Mobile
SoCs in case CONFIG_PM is set. Consolidate Makefile power
management objects and get rid of #ifdefs in the C code.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Cleanup pm-rcar.o build using Kconfig

Add a CONFIG_PM_RCAR entry and enable it for R-Car
Generation 1 or 2 in case CONFIG_PM or CONFIG_SMP
is set. Consolidate power management objects and
get rid of #ifdefs in the C code.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Introduce a Kconfig entry for R-Car Gen2

Add a Kconfig entry for R-Car Generation 2 SoCs that
enables CMT timer and the IRQC interrupt driver.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Rework multiplatform include workaround

Now when the majority of the include files have moved from
arch/arm/mach-shmobile/include/mach/ to arch/arm/mach-shmobile/
remove the header include file workaround in the Makefile...

... and add another workaround in irqs.h to cope with the fact
that <mach/irqs.h> needs to be where it is until the PFC code
has been updated to remove legacy non-DT interfaces.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: Remove legacy board support

There's no legacy board anymore, genmai now boots with multiplatform
support only. Remove the leftovers.

Makefile.boot portion pointed out by Paul Bolle.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@sang-engineering.com>
Cc: Paul Bolle <pebolle@tiscali.nl>
[horms+renesas@verge.net.au: squashed in patch containing
Makefile.boot change]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: genmai: Remove legacy board file

The genmai board now boots using DT and multiplatform kernel with the
same feature set as the legacy board. Remove the legacy board file and
the board Kconfig option.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100: genmai: Remove reference board file

The genmai board now boots using the generic R7S72100 DT machine with
the same feature set as the board file. Remove the board file.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Allow r8a7791 to build non-SMP APMU code

Build the APMU for r8a7791 even though SMP is
disabled in the kernel config. Also initialize
Suspend-to-RAM from pm-r8a7791.c to in the future
cover both UP and SMP use cases of the APMU.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Allow r8a7790 to build non-SMP APMU code

Build the APMU for r8a7790 even though SMP is
disabled in the kernel config. Also initialize
Suspend-to-RAM from pm-r8a7790.c to in the future
cover both UP and SMP use cases of the APMU.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Allow use of boot code for non-SMP case

Allow build of platsmp.c and headsmp.S even though
SMP is disabled in the kernel configuration. With
this in place it is possible to share the reset
vector setup code with power management code that
needs to be built even though SMP is disabled.

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove non-multiplatform Marzen reference support

Now that r8a7779 has CCF support remove the legacy Marzen reference
Kconfig bits CONFIG_MACH_MARZEN_REFERENCE for the non-multiplatform
case.

Starting from this commit Marzen board support is always enabled via
CONFIG_MACH_MARZEN, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-marzen.c and board-marzen-reference.c

The file board-marzen-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.

Based on work for the Koelsch board by Laurent Pinchart.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7779: Initial multiplatform support

Add Marzen and r8a7779 to CONFIG_SHMOBILE_MULTI. At this
point CCF is not yet supported so you cannot run this code
yet. For CCF support to happen several different components
are needed, and this is one simple portion that moves us
forward. Other patches need to build on top of this one.

Marzen board support exists in 3 flavours:
1) SHMOBILE_MULTI, MACH_MARZEN - board-marzen-reference.c (CCF + DT)
2) SHMOBILE, MACH_MARZEN_REFERENCE - board-marzen-reference.c (DT)
3) SHMOBILE, MACH_MARZEN - board-marzen.c (legacy C code)

When CCF is done then 2) will be removed. When 1) includes same features
as 3) then 3) will be removed.

Based on work for the Koelsch and r8a7791 by Magnus Damm.

Cc: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791 SYSC setup code

Add r8a7791 SYSC power management support.

Signed-off-by: Keita Kobayashi <keita.kobayashi.ym@renesas.com>
Acked-by: Magnus Damm <damm+renesas@opensource.se>
[horms+renesas@verge.net.au: rebased]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: add cpufreq-cpu0 driver for common SH-Mobile

I add a new file(cpufreq.c) for the following reasons.
- Registration of platform_device must be unified in SH-Mobile.
- We can't create a node of cpufreq drivers into device tree.
(Because cpufreq driver is virtual device.)

Signed-off-by: Gaku Inami <gaku.inami.xw@bp.renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove non-multiplatform Genmai reference support

Now that r7s72100 has CCF support, remove the legacy Genmai reference
Kconfig bits for the non-multiplatform case.

Starting from this commit Genmai board support is always enabled via
CONFIG_MACH_GENMAI, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-genmai.c and board-genmai-reference.c

The file board-genmai-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Introduce shmobile_clk_workaround()

Introduce a new clock workaround function used by DT reference
code on the mach-shmobile subarchitecture. The new function
shmobile_clk_workaround() is used to configure clkdev to
allow DT and platform devices to coexist. It is possible for
the DT reference board code to also request enabling of the clock
in case the driver does not implement clock control.

Signed-off-by: Magnus Damm <damm@opensource.se>
[horms+renesas@verge.net.au: Removed trailing blank line]
Reviewed-by: Wolfram Sang <wsa@sang-engineering.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove legacy EMEV2 SoC support

Get rid of legacy EMEV2 SoC code including the legacy clock
framework implementation. The multiplatform implementation
together with DT board support shall be used instead.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7790 SYSC setup code

Add r8a7790 SYSC power management support.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Converted to use broken out SYSC code]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Break out R-Car SYSC PM code

Break out the R-Car SYSC power management code from
the r8a7779 SoC code. With this new shared R-Car SYSC
code base it is possible to hook in Generation 2 SoCs
as well.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove KZM9D board code

Get rid of KZM9D board code written in C. This version of the
C board code was used in the case of multiplatform, but these
days DT can be used instead, so because of that simply get rid
of the C code to simplify and save space.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove non-multiplatform Koelsch reference support

Now that r8a7791 has CCF support remove the legacy Koelsch reference
Kconfig bits CONFIG_MACH_KOELSCH_REFERENCE for the non-multiplatform
case.

Starting from this commit Koelsch board support is always enabled via
CONFIG_MACH_KOELSCH, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-koelsch.c and board-koelsch-reference.c

The file board-koelsch-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
[horms+renesas@verge.net.au: Dropped arch/arm/boot/dts/Makefile portion]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove non-multiplatform Lager reference support

Now that r8a7790 has CCF support remove the legacy Lager reference
Kconfig bits CONFIG_MACH_LAGER_REFERENCE for the non-multiplatform
case.

Starting from this commit Lager board support is always enabled via
CONFIG_MACH_LAGER, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-lager.c and board-lager-reference.c

The file board-lager-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: lager-reference: Enable multiplaform kernel support

Enable multiplaform ARM architecture support for the Lager reference
board. Common clock framework initialization will be handled by the
rcar_gen2_init_timer() call, we just need to remove the legacy clock
code initialization.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100 Genmai Multiplatform

Add r7s72100 Genmai to SHMOBILE_MULTI.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r7s72100 Genmai DT reference C bits

Add C code support for r7s72100 Genmai DT reference.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r8a7791 and Koelsch multiplatform support

Add Koelsch and r8a7791 to CONFIG_SHMOBILE_MULTI. At this
point CCF is not yet supported so you cannot run this code
yet. For CCF support to happen several different components
are needed, and this is one simple portion that moves us
forward. Other patches need to build on top of this one.

Koelsch board support exists in 3 flavors:
1) SHMOBILE_MULTI, MACH_KOELSCH - board-koelsch-reference.c (CCF + DT)
2) SHMOBILE, MACH_KOELSCH_REFERENCE - board-koelsch-reference.c (DT)
3) SHMOBILE, MACH_KOELSCH - board-koelsch.c (legacy C code)

When CCF is done then 2) will be removed. When 1) includes same features
as 3) then 3) will be removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791 Koelsch DT reference C bits

Add DT reference support for the r8a7791 Koelsch board.

This board support file will be used together with common
clocks and multiplatform in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove legacy KZM9D board code

Remove the C and platform device version of KZM9D.

The DT version of KZM9D board support can now instead
directly be used with SoC specific code in setup-emev2.c.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove non-multiplatform KZM9D reference support

Now when CCF is supported remove the legacy KZM9D reference
Kconfig bits CONFIG_MACH_KZM9D_REFERENCE for the non-multiplatform
case.

Starting from this commit KZM9D board support is always enabled
via CONFIG_MACH_KZM9D, and CONFIG_ARCH_MULTIPLATFORM is used
to select between board-kzm9d.c and board-kzm9d-reference.c

The file board-kzm9d-reference.c can no longer be used together
with the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Use KZM9D without reference for multiplatform

Change the multiplatform kconfig bits for KZM9D from
CONFIG_MACH_KZM9D_REFERENCE into CONFIG_MACH_KZM9D
to match the non-multiplatform case.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Genmai support

Genmai base board support making use of 128 MiB of memory,
the r7s7211 SoC with the SCIF2 serial port and CA9 core.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791 SMP support

Tie in the APMU SMP code on r8a7791. When used together
with the secondary CPU device node and smp_ops in the
board specific code then this will allow use of the
two Cortex-A15 cores in the r8a7791 SoC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r7s72100 SoC support

Add initial support for the r7272100 SoC including:
- Single Cortex-A9 CPU Core
- GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791 Arch timer workaround

Make use of the R-Car Gen2 arch timer workaround on r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Break out R-Car Gen2 setup code

Move arch timer workaround code and boot mode pin
handling from setup-r8a7790.c to setup-rcar-gen2.c.

With this in place the same code can be used on
other R-Car Generation 2 devices such as r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
[horms+renesas@verge.net.au trivial rebase of board-lager.c
for introduction of lager_add_standard_devices()]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791 SMP support

Tie in the APMU SMP code on r8a7791. When used together
with the secondary CPU device node and smp_ops in the
board specific code then this will allow use of the
two Cortex-A15 cores in the r8a7791 SoC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r7s72100 SoC support

Add initial support for the r7272100 SoC including:
- Single Cortex-A9 CPU Core
- GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7791 Arch timer workaround

Make use of the R-Car Gen2 arch timer workaround on r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Break out R-Car Gen2 setup code

Move arch timer workaround code and boot mode pin
handling from setup-r8a7790.c to setup-rcar-gen2.c.

With this in place the same code can be used on
other R-Car Generation 2 devices such as r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Add r8a7790 SMP support using APMU code

Add r8a7790 SMP support using the shared APMU code. To enable
SMP the r8a7790 specific DTS needs to be updated to include
CPU cores, and this is happening in a separate patch.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Koelsch support

Koelsch base board support making use of 2 GiB of memory,
the r8a7791 SoC with the SCIF0 serial port and CA15 with
CMT timer.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped not-yet-ready SMP/PFC]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r8a7791 SoC support

Add initial support for the r8a7791 SoC including:
- Single Cortex-A15 CPU Core
- GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped not-yet-ready code]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Use shared SCU SMP boot code on emev2

Use shared SCU code on emev2 for SMP boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Use shared SCU SMP boot code on r8a7779

Use shared SCU code on r8a7779 for SMP boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Use shared SCU SMP boot code on sh73a0

Use shared SCU code on sh73a0 for SMP boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7779: move r8a7779_init_irq_xxx() to setup

This patch moves r8a7779_init_irq_xxx() to setup code,
and remove intc-r8a7779.

Now, r8a7779_init_irq_extpin() uses
platform_device_register_resndata() instead of
platform_device_register()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7740: move r8a7740_init_irq_of() to setup

This patch moves r8a7740_init_irq_of() to setup code,
and remove intc-r8a7740

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: bockw: add DT reference

This patch adds a sample DT-based Bock-W "reference" implementation.
The use of platform-specific C-code should be avoided
with this configuration as much as possible.

This patch adds new r8a7778_add_dt_devices() which was same stance
of r8a7790_add_dt_devices()

Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: No need to use INTC demux on r8a7740

Now when the r8a7740 code has been converted to make use of
GIC instead of INTC for root interrupt controller it is
possible to exclude the low level INTC demux function
shmobile_handle_irq_intc from linking.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Use pm-rmobile on sh7372 and r8a7740 only

The functions in pm-rmobile.c are only used on sh7372 and
r8a7740, so adjust the Makefile to only link in that file
in case those SoCs are selected.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARCH: ARM: shmobile: Remove ag5evm board support

Remove support for the sh73a0 based ag5evm board.

The sh73a0 SoC is continued to be supported using
the kzm9g board.

Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARCH: ARM: shmobile: Remove kota2 board support

Remove support for the sh73a0 based kota2 board.

The sh73a0 SoC is continued to be supported using
the kzm9g board.

Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Introduce ARCH_SHMOBILE_MULTI

Add ARCH_SHMOBILE_MULTI to mach-shmobile that can be used
to enable ARCH_MULTIPLATFORM on selected SoCs and boards.

The headers stay under arch/arm/mach-shmobile/include/mach/
for now, they can and will be migrated independently over time.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Only build clocks when COMMON_CLK=n

Move shared clock.c file and per-SoC clock-xxx.c files
to only build when CONFIG_COMMON_CLK != y.

The regular ARCH_SHMOBILE case with legacy SH clock framework
will build just as before with this patch applied, however
the case when COMMON_CLK=y will exclude all the clock files.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: lager: Add DT reference

This is sufficient to allow boot of the Lager board with
a console without boards-lager.c compiled into the kernel.
This is an example of a minimal but still useful initialisation
of the board using DT as much as possible.

As such it is the same as the boot of Lager that can be achieved
without a board file. The intention of adding this file
is to facilitate further work to allow board specific devices to be
initialised via DT.

Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: ape6evm: add DT reference

This patch adds a sample DT-based APE6EVM "reference" implementation. The
use of platform-specific C-code should be avoided with this configuration
as much as possible.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: KZM9D DT reference implementation

Add a DT reference implementation for the KZM9D board.

Only DT devices are used in this case. UART, STI, GPIO
and SMP / GIC are all provided by emev2.dtsi.

There is still a board specific C file used for enabling
legacy SH clocks. This file will be removed after we have
moved over to common clocks.

Signed-off-by: Magnus Damm <damm@opensource.se>
[horms+renesas@verge.net.au: Do not include trailing blank line in
board-kzm9d-reference.c ]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove Bonito board support

Remove board support for the r8a7740 based Bonito board

The r8a7740 SoC support code is still kept around since it
is in use by the Armadillo800eva board which is basically a more
recent board where the design is based on Bonito.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove AP4EVB board support

Remove board support for the sh7372 based AP4EVB board

The sh7372 SoC support code is still kept around since it
is in use by the Mackerel board which is basically a more
recent board where the design is based on AP4EVB.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: armadillo800eva: Reference DT implementation

Provide alternate board code for the Armadillo800EVA to demonstrate how
DT may be used given the current state of driver device tree support.
This is intended to act as a reference for mach-shmobile developers.

This a rather bare bone version with the following devices supported:

- GIC
- irqpins
- i2c0/1
- touchscreen

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r8a7790 Lager board support

Lager base board support making use of 2 GiB of memory,
the r8a7790 SoC with the SCIF0 serial port and CA15 with
ARM architected timer.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: APE6EVM base support

V3 of APE6EVM base board support making use of
1 GiB of memory, the SCIFA0 serial port and
ARM architected timer.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: add R-Car M1A Bock-W platform support

Add basic Bock-W board support

More devices will be added on top of this patch after
PICNTRL and clock framework are in better shape.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r8a7790 SoC support

Add initial support for the r8a7790 SoC including:
- Single Cortex-A15 CPU Core
- GIC
- Architecture timer

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: add R8A7778 basis support

Add initial support for the R8A7778 R-Car M1A SoC.
No static virtual mappings are used, all the components
make use of ioremap().
DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

It is based on v1.0 datasheet

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Initial r8a73a4 SoC support V3

V3 of initial support for the r8a73a4 SoC including:
- Single Cortex-A15 CPU Core
- GIC
- Architecture timer

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: kzm9g: Reference DT implementation

Provide alternate board code for the kzm9g to demonstrate
how DT may be used given the current state of driver
device tree support. This is intended to act as a reference
for mach-shmobile developers.

Some notes:

* Brings up the GIC interrupt handler using device tree
* Brings up the following device using device tree:
- MMCIF (MMC)
* Does not bring up the INTC interrupt controller at all,
thus external devices may not be used. In particular,
the SMSC ethernet device may not be used and thus
NFS root may not be used.
* Uses existing C code and not device tree to initialise the following,
which are needed for a working board:
- SCIF (Serial)
- CMT (Clock)
- PFC (GPIO)

To use this alternate board code instead of the normal board code,
CONFIG_MACH_KZM9G_REFERENCE should be selected in the kernel config.
And the sh73a0-kzm9g-reference.dtb flattened device tree blob should be used.

Includes fix by Thierry Reding to no longer use gic_handle_irq()

Includes fixes by Guennadi Liakhovetski for recent pinmux changes.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: marzen: Reference DT implementation

Provide alternate board code for the marzen to demonstrate
how DT may be used given the current state of driver
device tree support. This is intended to act as a reference
for mach-shmobile developers.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove unused hotplug.c

Each CPU Hotplug implementation for mach-shmobile
is now self-contained, so this change removes unused
helper code in hotplug.c. The two CPU Hotplug capable
SoCs sh73a0 and r8a7779 remain unchanged.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Common shmobile_scu_base in headsmp-scu.S

Update the code in headsmp-scu.S to use a global
shmobile_scu_base variable both for convenient SCU
base address storage and for the early SCU setup
code in shmobile_secondary_vector_scu.

With this patch applied r8a7779, sh73a0 and EMEV2
all make use of the global shmobile_scu_base
variable. However only sh73a0 makes use of the SCU
bring up code in shmobile_secondary_vector_scu.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Move headsmp-sh73a0.S to headsmp-scu.S

Rename headsmp-sh73a0.S into headsmp-scu.S and
introduce shmobile_secondary_vector_scu().

The goal is to be able to share the function
above between all mach-shmobile SoCs that use
SCU for SMP. So far only sh73a0 use this.

At this time the SCU base address is still hard
coded in headsmp-scu.S to 0xf0000000, but this
will be changed in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: SH-Mobile: sh73a0: Secondary CPUs handle own SCU flags

When booting secondary CPUs we have used the main CPU to set up the
Snoop Control Unit flags of these CPUs. It is a cleaner approach
if every CPU takes care of its own flags. We avoid the need for
locking and the program logic is more concise. With this patch the file
headsmp-sh73a0.S is added that contains a startup vector for secondary CPUs
that sets up its own SCU flags.
Further in sh73a0_smp_prepare_cpus() we can rely on the generic ARM helper
scu_power_mode(). This is possible as we don't cross borders anymore (every
CPU handles its own flags) and need no locking. So we can throw out the
needless function modify_scu_cpu_psr().

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: sh73a0: Add CPU sleep suspend

Add the lighest possible sleep mode on Cortex-A9 cores: CPU sleep. It is
entered by a simple dsb and wfi instruction via cpu_do_idle(). As just
clocks are stopped there is no need to save or restore any state of the
system.

Signed-off-by: Bastian Hecht <hechtb+renesas@gmail.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: sh73a0: Use driver-provided pinmux info

Pinmux info for the sh73a0 is now provided by pinmux drivers. Remove the
duplicate copy in arch code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: sh7372: Use driver-provided pinmux info

Pinmux info for the sh7372 is now provided by pinmux drivers. Remove the
duplicate copy in arch code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7779: Use driver-provided pinmux info

Pinmux info for the r8a7779 is now provided by pinmux drivers. Remove
the duplicate copy in arch code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: r8a7740: Use driver-provided pinmux info

Pinmux info for the r8a7740 is now provided by pinmux drivers. Remove
the duplicate copy in arch code.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

ARM: shmobile: Remove SH7377 support

This is old CPU of shmobile, and the machine by which this CPU is
used cannot be obtained.
Therefore, remove SH7377 support.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

ARM: shmobile: Remove SH7367 support

This is old CPU of shmobile, and the machine by which this CPU is
used cannot be obtained.
Therefore, remove SH7367 support.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

ARM: shmobile: Remove G4EVM machine support

This machine is using old CPU of shmobile (sh7377) and cannot obtain
machine, either.
Therefore, remove G4EVM support.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

ARM: shmobile: Remove G3EVM machine support

This machine is using old CPU of shmobile (SH7367) and cannot obtain
machine, either.
Therefore, remove G3EVM support.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

ARM: shmobile: Move definition of shmobile_init_late() to header

The role of the only function in the common.c file in
arch/arm/mach-shmobile, shmobile_init_late(), is to call two
initializers whose definitions depend on kernel configuration
options. Those initializers may very well be called from a static
inline function in arm/mach-shmobile/include/mach/common.h,
though, in which makes the code a bit easier to read. Moreover,
the common.c may be dropped entirely then.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>

ARM: shmobile: r8a7740: add A4S pm domain support

This patch adds basic A4S pm domain support.
Now, below devices can be controled by PM

Common-SHwy, Common-HPB, BSC, MFI, MMFROM, HS-SHwy,
SYS-HPB, INTCA, DBSC, DDRPHY (Logic),
ATAPI, GbEther, AXI-bus

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

ARM: shmobile: soc-core: add R-mobile PM domain common APIs

This patch adds Renesas R-mobile series common PM domain APIs.
R-mobile CPU can use/switch this API

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

mach-shmobile: Emma Mobile EV2 SMP support V3

This is V3 of Emma Mobile EV2 SMP support.

At this point only the most basic form of SMP operation
is supported. TWD and CPU Hotplug support is excluded.

Tied to both the Emma Mobile EV2 and the KZM9D board
due to the need to switch on board in platsmp.c and
the newly introduced need for static mappings.

The static mappings are needed to allow hardware
acces early during boot when SMP is initialized.
This early requirement forces us to also map in
the SMU registers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

mach-shmobile: KZM9D board support V3

V3 of basic KZM9D board support. At this point a quite
thin layer that makes use of the Emma Mobile EV2 SoC code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

mach-shmobile: Emma Mobile EV2 SoC base support V3

This is V3 of the Emma Mobile EV2 SoC support.
Included here is support for serial and timer
devices which is just about enough to boot a kernel.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

ARM: mach-shmobile: add KZM-A9-GT board support

This adds very basic KZM-A9-GT board (SH73a0) support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

ARM: mach-shmobile: add armadillo800eva board support.

This adds very basic armadillo800eva board (R-Mobile A1) support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

ARM: shmobile: use machine specific hook for late init

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Magnus Damm <damm@opensource.se>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>

ARM: shmobile: convert to twd_local_timer_register() interface

Add support for the new smp_twd runtime registration interface
to the shmobile platforms, and remove the old compile-time support.

Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

ARM: mach-shmobile: r8a7779 SMP support V3

This patch contains r8a7779 SMP support V3 - now including
CPU hotplug offine and online support. The r8a7779 power
domain code is tied together with SMP glue code which allows
us to control the power domains via CPU hotplug.

At this point the kernel boots with the 4 Cortex-A9 cores in
SMP mode and all CPU cores except CPU0 can be hotplugged.

The code in platsmp.c is quite far from pretty, but it is
kept like that intentionally to avoid creating layers of
code that will go away in the near future anyway. The code
needs to be updated when some per-SoC handling code will be
added to the ARM architecture, see the following patch for
more information:
"[RFC PATCH 0/3] Per SoC descriptor"

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: r8a7779 power domain support V2

Add power domain control support for the r8a7779 SoC V2.

This adds support for 4 power domains for I/O Devices
together with code that can be used for CPU cores as well.

The only out of the ordinary experience is the need for
ioremap() of SYSC registers. Because of that we need to
execute some init function before setting up the domains.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: r8a7779 PFC GPIO-only support V2

Add GPIO-only r8a7779 PFC support V2.

Only regular GPIOs are supported at this time. GPIO_FN are not
supported because they require variable bit width support in be
the shared pfc code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: r8a7779 and Marzen base support V2

Initial support for the r8a7779 SoC and the Marzen board (V2).

Only SCIF ports and the TMU are supported at this point.

To keep things simple only entity-mapped virt-to-phys mappings
are supported. This forces drivers and other SoC glue code to
make use of ioremap(). We cannot support early serial console
due to virtual address space collisions with the ARM kernel.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: shmobile: convert smp platforms to gic_handle_irq()

Convert the SMP shmobile platforms to use gic_handle_irq() instead
of the assembly macro.

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

ARM: mach-shmobile: add bonito board support.

This adds basic bonito board (R-Mobile A1) support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: r8a7740: add INTC support

R8A7740 GIC can not get external IRQx interrupt directly
without GIC - INTC demux support.

Current AG5 is using GIC - INTCS demux with
special irq relocation. but GIC - INTCA demux
is still not supported and it needs irq number re-mapping.

OTOH, normal INTC support as before is very enough for R8A7740,
because it is not SMP CPU.
This patch adds INTCA/INTCS support instead of GIC.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: r8a7740: add PFC support.

This adds PFC support for the R8A7740 (R-Mobile A1) CPU
This patch is based on v0.1 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: R-Mobile A1 support.

This adds preliminary support for the R8A7740 (R-Mobile A1) CPU

Timer, serial, gic, clock are supported at this point.
This patch is based on v0.1 manual

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

drivers: sh: Generalize runtime PM platform stub.

The runtime PM platform support stub in use by ARM-based SH/R-Mobile
platforms contains nothing that's specifically ARM-related and instead of
wholly generic to anything using the clock framework.

The recent runtime PM changes interact rather badly with the lazy
disabling of clocks late in the boot process through the clock framework,
leading to situations where the runtime suspend/resume paths are entered
without a clock being actively driven due to having been lazily gated
off.

In order to correct this we can trivially tie in the aforementioned stub
as a general fallback for all SH platforms that don't presently have
their own runtime PM implementations (the corner case being SH-based
SH-Mobile platforms, which have their own stub through the hwblk API --
which in turn has bitrotted and will be subsequently adapted to use the
same stub as everyone else), regardless of whether the platforms choose
to define power domains of their own or not.

This fixes up regressions for clock framework users who also build in
runtime PM support without any specific power domains of their own, which
was previously causing the serial console to be lost when warring with
lazy clock disabling.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Kota2 SCIFA2 and SMSC911X support

Kota2 base board support including the on-chip SCIFA2
serial console and the on-board SMSC911X ethernet port.

The s73a0 SMP bits are also updated to include Kota2.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: CPUIdle support

This patch adds a shared SH-Mobile ARM specific CPUIdle
implementation supporting WFI only at this point. It
serves as a common point for late registration of the
arch-specific CPUIdle code, and supports adding extra
sleep modes using the callback shmobile_cpuidle_setup()
together with shmobile_cpuidle_modes[].

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7372 Core Standby Suspend-to-RAM

Add sh7372 Core Standby sleep mode support and tie it
in with the shared SH-Mobile ARM suspend code.

The Core Standby mode is the lightest sh7372-specific
sleep mode, cutting power to the ARM core excluding the
L2 cache. Any interrupt source can be used for wakeups.

The low level portion of this code is based on the
TI OMAP sleep code in sleep34xx.S, thanks to them.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Suspend-to-RAM support

This patch adds a simple Suspend-to-RAM implementation
for SH-Mobile ARM. The struct shmobile_suspend_ops are
kept global to allow cpu-specific code to override
the callbacks if needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Run-time IRQ handler for GIC

Break-out GIC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh73a0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Run-time IRQ handler for INTCA

Break-out INTC specific IRQ demux code from the file
entry-macro-intc.S and register during run-time.

Covers sh7367, sh7377 and sh7372.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh73a0 INTCS support

Add INTCS support for the sh73a0 processor.

The interrupts on the sh73a0 processor are managed
through controllers such as GIC, INTCS and INTCA.

The ARM cores use the GIC as primary interrupt
controller and the INTCS and INTCA are hanging off
the GIC as cascaded interrupt controllers.

Peripherals connected both to the GIC and the INTC
controllers should if possible only use the GIC.

If no GIC connection is available then INTCS and
INTCA may be used instead.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh73a0 SMP support

Add SMP support for ag5evm and the sh73a0 processor.

Onlining and offlining works well, but at this point
offlined processor cores are not put into sleep mode.

There is no spinlock for syncing the secondary core
with the first one in this implementation. The code
instead relies on the cpu_online() check in __cpu_up().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: SMP base support

Add SMP base support for R-Mobile / SH-Mobile processors.

This patch contains all base code to support CONFIG_SMP
regardless of ARCH_SHMOBILE processor type. Both local timer
and CPU hotplug are supported, but no processor specific
code is included.

At this point only the default behavior is in place, so
a single core will always be used even though CONFIG_SMP
is enabled on multicore systems.

The SMP Kconfig entry for arch/arm/Kconfig is excluded from
this patch to simplify merging.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Fix up pinmux entries in Makefile

Compiling in multiple CPUs into the same kernel binary
requires a Makefile update. With this patch in place
it is possible to enable the pinmux code for both the
SH7372 and the SH7377.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Add mackerel board support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Add sh73a0 pinmux support

PFC definitions for sh73a0 to support GPIO and pinmux handling.

Signed-off-by: Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Initial AG5 and AG5EVM support

This patch adds initial support for Renesas SH-Mobile AG5.

At this point the AG5 CPU support is limited to the ARM
core, SCIF serial and a CMT timer together with L2 cache
and the GIC. The AG5EVM board also supports Ethernet.

Future patches will add support for GPIO, INTCS, CPGA
and platform data / driver updates for devices such as
IIC, LCDC, FSI, KEYSC, CEU and SDHI among others.

The code in entry-macro.S will be cleaned up when the
ARM IRQ demux code improvements have been merged.

Depends on the AG5EVM mach-type recently registered but
not yet present in arch/arm/tools/mach-types.

As the AG5EVM board comes with 512MiB memory it is
recommended to turn on HIGHMEM.

Many thanks to Yoshii-san for initial bring up.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Runtime PM V3

This is the SH-Mobile ARM Runtime PM implementation V3.
Only clocks are managed at this point. If Runtime PM
is disabled then the clocks will be enabled before
->probe() and disabled after ->remove().

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7377 clock framework V2

This patch is V2 of clock framework tables/code for sh7377.
MSTP support is included for the following hardware blocks:
KEYSC, SCIF, IIC, IRDA, FLCTL, USB, SDHI and UIO.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7372 clock framework support V2

This patch is V2 of clock framework tables/code for sh7372.
MSTP are included for KEYSC, SCIF, IIC, USB, SDHI and UIO.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Use shared clock framework

Teach SH-Mobile ARM how to make use of the shared SH clock
framework. This commit is one atomic switch that dumps the
local hackery and instead links in the shared clock framework
code in drivers/sh. A few local functions are kept in clock.c.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: Add sh7372 pinmux support

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7377 and G4EVM pinmux support

Add support for the sh 7377 pinmux using drivers/sh/pfc.c
and some LEDs on G4EVM.

Signed-off-by: NISHIMOTO Hiroki <nishimoto.hiroki@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7367 and G3EVM pinmux support

Add support for the sh7367 pinmux using drivers/sh/pfc.c
and select serial console pins and some LEDs on G3EVM.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7372 INTCA support

Add support for the sh7372 INTCA hardware block.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7377 INTCA support

Add support for the sh7377 INTCA hardware block.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: sh7367 INTCA support

Add support for the sh7367 INTCA hardware block.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: early console support using earlyprintk

Add support for early console to the SH-Mobile boards.

Simply perform an early platform probe for "earlyprintk"
to trigger the early serial console code in sh-sci.c.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: SH-Mobile AP4 support.

This adds preliminary support for the SH7372 (SH-Mobile AP4) CPU and
the AP4EVB reference board.

Only timer, serial console and NOR flash are supported at this point.
Support for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: SH-Mobile G4 support.

This adds preliminary support for the SH7377 (SH-Mobile G4) CPU and
the G4EVM reference board.

Only timer, serial console and NOR flash are supported at this point.
Support for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

ARM: mach-shmobile: SH-Mobile G3 support.

This adds preliminary support for the SH-Mobile G-series.

The SH-Mobile G-series is a series of ARM/SH multi-core CPUs that aside
from the ARM MPU are primarily composed of existing SH IP blocks.

This includes initial support for the SH7367 (SH-Mobile G3) CPU and
the G3EVM reference board.

Only timer, serial console, and NOR flash are supported at this point.
Patches for the interrupt controller, pinmux support, clock framework
and runtime pm will be submitted as feature patches on top of this.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>