Define the clock outputs supported by RZ/G2L (R9A07G044) SoC
and bind it with RZ/G2L CPG core.
Based on a patch in the BSP by Binh Nguyen
<binh.nguyen.jz@renesas.com>.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20210609153230.6967-10-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add CPG core wrapper for RZ/G2L family.
Based on a patch in the BSP by Binh Nguyen
<binh.nguyen.jz@renesas.com>.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20210609153230.6967-9-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
R-Car V3U has a CPG different enough to not be a generic Gen3 CPG but
similar enough to reuse code. Introduce a new CPG library, factor out
the SD clock handling and hook it to the generic Gen3 CPG driver so we
have an equal state. V3U will make use of it in the next patch then.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20201227174202.40834-4-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The rcar-gen3-cpg driver is also used on Renesas RZ/G2 SoC's, update the
description for the CLK_RCAR_GEN3_CPG config symbol to reflect this.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
Link: https://lore.kernel.org/r/20200911101703.20521-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Initial support for R-Car V3U (r8a779a0), including core, module
clocks, resets, and register access, because register specification
differs from R-Car Gen2/3.
Inspired by patches in the BSP by LUU HOAI.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599810232-29035-4-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
CLK_RENESAS_CPG_MSSR selects CLK_RENESAS_DIV6, and CLK_RCAR_GEN2_CPG
selects CLK_RENESAS_CPG_MSSR, so there is no longer a need for the
individual R-Car Gen2 clock driver options to select CLK_RENESAS_DIV6.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20200427193446.29738-1-geert+renesas@glider.be
CONFIG_ARCH_R8A7795 was split in CONFIG_ARCH_R8A77950 and
CONFIG_ARCH_R8A77951 in commit b925adfceb ("soc: renesas: Add
ARCH_R8A7795[01] for existing R-Car H3"), so its users can be removed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200218112525.5834-1-geert+renesas@glider.be
Despite using the same compatible values ("r8a7795"-based) because of
historical reasons, R-Car H3 ES1.x (R8A77950) and R-Car H3 ES2.0+
(R8A77951) are really different SoCs, with different part numbers.
Hence the SoC configuration symbol will be split in two separate config
symbols.
As the Clock Pulse Generator / Module Standby and Software Reset blocks
in both SoCs are very similar, they will keep on sharing a driver.
Extend the dependency of CONFIG_CLK_R8A7795, to prepare for the split.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20191230080902.2832-1-geert+renesas@glider.be
Add support for the R-Car M3-W+ (R8A77961) SoC to the Renesas Clock
Pulse Generator / Module Standby and Software Reset driver.
R-Car M3-W+ is very similar to R-Car M3-W (R8A77960), which allows for
both SoCs to share a driver. R-Car M3-W+ lacks a few modules, so their
clocks must be nullified.
Based on a patch in the BSP by Takeshi Kihara
<takeshi.kihara.df@renesas.com>.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191023122941.12342-5-geert+renesas@glider.be
Rename CONFIG_CLK_R8A7796 for R-Car M3-W (R8A77960) to
CONFIG_CLK_R8A77960, to avoid confusion with R-Car M3-W+ (R8A77961),
which will use CONFIG_CLK_R8A77961.
Extend the dependency of CONFIG_CLK_R8A77960 from CONFIG_ARCH_R8A7796 to
CONFIG_ARCH_R8A77960, to relax dependencies for a future rename of the
SoC configuration symbol.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191023122941.12342-4-geert+renesas@glider.be
As of commit 362b334b17 ("ARM: dts: r8a7791: Convert to new
CPG/MSSR bindings"), all upstream R-Car Gen2 device tree source files
use the unified "Renesas Clock Pulse Generator / Module Standby and
Software Reset" DT bindings.
Hence remove backward compatibility with old R-Car Gen2 device trees
describing a hierarchical representation of the various CPG and MSTP
clocks.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lore.kernel.org/r/20190830133615.11274-1-geert+renesas@glider.be
This patch updates license to use SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[rebased against clk-spdx]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Add support for the R7S9210 (RZ/A2) Clock Pulse Generator and Module
Standby.
The Module Standby HW in the RZ/A series is very close to R-Car HW, except
for how the registers are laid out.
The MSTP registers are only 8-bits wide, there are no status registers
(MSTPSR), and the register offsets are a little different. Since the RZ/A
hardware manuals refer to these registers as the Standby Control Registers,
we'll use that name to distinguish the RZ/A type from the R-Car type.
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Rob Herring <robh@kernel.org> # DT bits
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This provides a clock driver for the Renesas R09A06G032.
This uses a structure derived from both the R-Car Gen2 driver as well as
the renesas-cpg-mssr driver.
Signed-off-by: Michel Pollet <michel.pollet@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Initial support for R-Car E3 (r8a77990), including core and module
clocks.
Based on the Table 8.2g of "R-Car Series, 3rd Generation User's Manual:
Hardware ((Rev. 0.80, Oct 31, 2017) with Manual Errata on Feb. 28, 2018".
Inspried by patches by Takeshi Kihara in the BSP.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Initial support for R-Car M3-N (r8a77965), including core and module
clocks.
Based on Table 8.2d of "R-Car Series, 3rd Generation User's Manual:
Hardware (Rev. 0.80, Oct 31, 2017)".
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add R-Car V3H (R8A77980) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 code.
Based on the original (and large) patch by Vladimir Barinov.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Since v4.15-rc1, the DTS files for all R-Car Gen2 SoCs have been
converted to the new CPG/MSSR bindings. Hence it is now safe to no
longer enable legacy DT clock support by default.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add R-Car V3M (R8A77970) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 code.
Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.
Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
R-Car USB 2.0 controller can change the clock source from an oscillator
to an external clock via a register. So, this patch adds support
the clock source selector as a clock driver.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add R-Car D3 (R8A77995) Clock Pulse Generator / Module Standby and
Software Reset support, using the CPG/MSSR driver core and the common
R-Car Gen3 CPG code.
Based on the R-Car Series, 3rd Generation Hardware User's Manual, Rev.
0.55, Jun. 30, 2017.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Enable compile-testing of the remaining clock drivers and subdrivers,
now dummies are available for of_clk_get_from_provider(),
of_device_compatible_match(), and rcar_rst_read_mode_pins(), and the
CPG/MSSR driver core has been converted from of_match_node() to
of_device_get_match_data().
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a new R-Car E2 Clock Pulse Generator / Module Standby and Software
Reset driver, using the CPG/MSSR driver core. This will enable support
for module resets, which are not supported by the existing driver.
The old driver can still be used through a Kconfig option, to preserve
backward compatibility with old DTBs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a new R-Car V2H Clock Pulse Generator / Module Standby and Software
Reset driver, using the CPG/MSSR driver core. This will enable support
for module resets, which are not supported by the existing driver.
The old driver can still be used through a Kconfig option, to preserve
backward compatibility with old DTBs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a new R-Car M2-W/N Clock Pulse Generator / Module Standby and
Software Reset driver, using the CPG/MSSR driver core. This will enable
support for module resets, which are not supported by the existing
driver.
The old driver can still be used through a Kconfig option, to preserve
backward compatibility with old DTBs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add a new R-Car H2 Clock Pulse Generator / Module Standby and Software
Reset driver, using the CPG/MSSR driver core. This will enable support
for module resets, which are not supported by the existing driver.
The old driver can still be used through a Kconfig option, to preserve
backward compatibility with old DTBs.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
The goals are to:
- Allow precise control over and automatic selection of which
(sub)drivers are used for which SoC (which may change in the
future),
- Allow adding support for new SoCs easily,
- Allow compile-testing of all (sub)drivers,
- Keep driver selection logic in the subsystem-specific Kconfig,
independent from the architecture-specific Kconfig (i.e. no "select"
from arch/arm64/Kconfig.platforms), to avoid dependencies.
This is implemented by:
- Introducing Kconfig symbols for all drivers and sub-drivers,
- Introducing the Kconfig symbol CLK_RENESAS, which is enabled
automatically when building for a Renesas ARM platform, and which
enables all required drivers without interaction of the user, based
on SoC-specific ARCH_* symbols,
- Allowing the user to enable any Kconfig symbol manually if
COMPILE_TEST is enabled,
- Using the new Kconfig symbols instead of the ARCH_* symbols to
control compilation in the Makefile,
- Always entering drivers/clk/renesas/ during the build.
Note that currently not all (sub)drivers are enabled for
compile-testing, as they depend on independent fixes in other
subsystems.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Add RZ/G1E (R8A7745) Clock Pulse Generator / Module Standby and Software
Reset support, using the CPG/MSSR driver core and the common R-Car Gen2
(and RZ/G) code.
Based on the proof-of-concept R8A7791 CPG/MSSR patch by Geert
Uytterhoeven <geert+renesas@glider.be>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Add RZ/G1M (R8A7743) Clock Pulse Generator / Module Standby and Software
Reset support, using the CPG/MSSR driver core and the common R-Car Gen2
(and RZ/G) code.
Based on the proof-of-concept R8A7791 CPG/MSSR patch by Geert
Uytterhoeven <geert+renesas@glider.be>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Initial support for R-Car M3-W (r8a7796), including basic core clocks,
and SCIF2 (console) and INTC-AP (GIC) module clocks.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Currently the decision whether to build the renesas-cpg-mssr and
clk-mstp drivers is handled by Makefile logic. However, the rcar-sysc
driver will need to know whether CPG/MSSR and/or CPG/MSTP support are
available or not.
To avoid having to duplicate this logic, move it to Kconfig. Provide
non-visible CLK_RENESAS_CPG_MSSR and CLK_RENESAS_CPG_MSTP Kconfig
symbols, which can be used by both Makefiles and C code.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Lad Prabhakar