Hook up the FCPVB devices to allow use of VSPBC/VSPBD with
IPMMU-VP0 and IPMMU-VP1.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Hook up the FCPF devices to allow use of FDP1 with IPMMU-VP.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Hook up the FCPVD devices to allow use of the VSP and DU
together with IPMMU-VI1 and IPMMU-VI1.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Hook up r8a7795 ES2.0 Audio-DMAC nodes to the IPMMU-MP0.
Hook up r8a7795 ES1.x Audio-DMAC nodes to the IPMMU-MP1.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Hook up r8a7795 SYS-DMAC nodes to the IPMMUs. In particular SYS-DMAC0 gets
tied to IPMMU-DS0, and SYS-DMAC1 and SYS-DMAC2 get tied to IPMMU-DS1.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Add r8a7795 IPMMU nodes and keep all disabled by default.

This includes all IPMMU devices for r8a7795 ES2.0. Those
not present in r8a7795 ES1.x are removed from the DT for those
SoCs using delete-node. A follow-up patch will add IPMMU devices
to ES1.x which are not also present in ES2.0.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Use newly added R-Car SDHI Gen3 fallback compat string
in the DT of the r8a7795 SoC.

This should have no run-time effect as the driver matches against
the per-SoC compat string before considering the fallback compat string.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Use newly added R-Car GPIO Gen3 fallback compat string
in place of now deprecated non-generation specific
R-Car GPIO fallback compat string in the DT of the r8a7795 SoC.

This should have no run-time effect as the driver matches against
the per-SoC compat string before considering the fallback compat string.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

This patch adds USB3.0 peripheral channel 0 device node for r8a7795.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Node names should not use numerical suffixes if the nodes can be
distinguished by unit-address.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Fixes: 4dad6dcd ("arm64: dts: renesas: r8a7795: add usb2.0 host ch3 device nodes")
Fixes: 1c422b4c ("arm64: dts: renesas: r8a7795: Add usb companion property in EHCI")
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Use newly added R-Car SATA Gen3 fallback compat string
in the DT of the r8a7795 SoC.

This should have no run-time effect as the driver matches against
the per-SoC compat string before the fallback compat string is considered.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

This patch adds support for hsusb ch3 device nodes for R-Car H3 ES2.0.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This patch adds support for usb-dmac ch2 and ch3 device nodes for
R-Car H3 ES2.0.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This patch adds support for usb2.0 host ch3 device nodes for R-Car
H3 ES2.0.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This patch adds support for usb3_phy ch3 device node for R-Car H3 ES2.0.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This patch adds the "companion" property in the EHCI ch0, ch1 and
ch2 nodes to wait for the usb companion controller startup at resume.
Signed-off-by: NKazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: NTakeshi Kihara <takeshi.kihara.df@renesas.com>
[remove ch3 node and revise the commit log]
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Add the device nodes for all MSIOF SPI controllers, incl. clocks, power
domain, dma, and reset properties.

Due to a hardware erratum on R-Car H3 ES1.x, using MSIOF for SPI is only
supported on ES2.0 and later.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Add a compatible string and VSP links to the DU node. The H3 ES1.x and
H3 ES2.0 are compatible save for the links to the VSPs that are
described explicitly in DT, so there's no need for a new ES2-specific
compatible string.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Adds the DRIF controller nodes for r8a7795.
Signed-off-by: NRamesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

The definition of CPG_AUDIO_CLK_I is SoC-specific, not board-specific.
Hence move it from the board-specific .dts files to the SoC-specific
.dtsi files.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Describe the IMR-LX4 devices in the R8A7795 device tree.

Based on the original (and large) patch by Konstantin Kozhevnikov
<Konstantin.Kozhevnikov@cogentembedded.com>.
Signed-off-by: NKonstantin Kozhevnikov <Konstantin.Kozhevnikov@cogentembedded.com>
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Note that the audio module has resets for the Serial Sound Interfaces
only.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Tested with a Salvator-X.
Signed-off-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Update r8a7795.dtsi so it corresponds to R-Car H3 ES2.0 or later:
  - The following devices no longer exist on ES2.0, and are thus removed:
    fcpf2, fcpvd3, fcpvi2, fdp1-2, usb3-if1, vspd3, vspi2.
  - The DU <-> VSPD topology is different on ES2.0, hence remove the
    "compatible" and "vsps" properties from the DU node until the driver
    can handle this.

Move support for the ES1.x revision of the R-Car H3 SoC into a
separate file.  To avoid duplication, r8a7795-es1.dtsi includes
r8a7795.dtsi, and adds device nodes and properties where needed.
Note that while currently r8a7795-es1.dtsi only adds device nodes,
removal of devices nodes and properties can be implemented using the
/delete-node/ and /delete-property/ keywords, as shown below:

	&soc {
		/delete-node/ <name>@<addr>;
	};

	&<label> {
		/delete-property/ <prop>;
	};

Switch r8a7795-salvator-x.dts and r8a7795-h3ulcb.dts from r8a7795.dtsi
to r8a7795-es1.dtsi to preserve compatibility.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Add DT nodes for the two HDMI encoders in disabled state.

Based on work by Koji Matsuoka.
Signed-off-by: NUlrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

The device trees for Renesas SoCs use either pfc or pin-controller as the
node name for the PFC device. This patch is intended to take a step towards
unifying the node name used as pin-controller which appears to be the more
generic of the two and thus more in keeping with the DT specs.

My analysis is that this is a user-visible change to the extent that kernel
logs, and sysfs entries change from e6060000.pfc and pfc@e6060000 to
e6060000.pin-controller and pin-controller@e6060000.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Add properties to describe the reset topology for on-SoC devices:
  - Add the "#reset-cells" property to the CPG/MSSR device node,
  - Add resets and reset-names properties to the various device nodes.

This allows to reset SoC devices using the Reset Controller API.

Note that all resets added match the corresponding module clocks.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Update the r8a7795 SATA device node to use a 2MiB I/O space as specified
in the "72. Serial-ATA" section of R-Car-Gen3-rev0.52E.pdf
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Current	Audio-DMAC is assigned "rx" as Audio-DMAC0, "tx" as Audio-DMAC1.
Thus, DVC "tx" should be assigned as Audio-DMAC1, instead of Audio-DMAC0.

Because of this, current platform board (using SRC/DVC/SSI)
Playback/Capture both will use same Audio-DMAC0
(but it depends on audio data path).

First note is that this "rx" and "tx" are from each IP point,
it doesn't mean Playback/Capture.
Second note is that Audio DMAC assigned on DT is only for
Audio-DMAC, Audio-DMAC-peri-peri has no entry.

=> Audio-DMAC
-> Audio-DMAC-peri-peri
-- HW connection

Playback case

	[Mem] => [SRC]--[DVC] -> [SSI]--[Codec]
	      rx ~~~~~~~~~~~~
Capture

	[Mem] <= [DVC]--[SRC] <- [SSI]--[Codec]
	      tx ~~~~~~~~~~~~
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

The Cortex-A57/A53 cache controllers are integrated controllers, and
thus the device nodes representing them should not have unit-addresses
or reg properties.

Fixes: 6f7bf82c ("arm64: dts: r8a7795: Fix W=1 dtc warnings")
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

>From PSCI v1.0, Suspend-to-RAM is supported via SYSTEM_SUSPEND PSCI
function call. Hence, upgrade PSCI version for R-Car H3 to support
Suspend-to-RAM.

The Suspend-to-RAM is highly dependent on ARM Trusted Firwmare support
since necessary callback functions will be registered after a query
to ARM Trusted Firmware about SYSTEM_SUSPEND support.

Since PSCI v1.0 is backward compatible with PSCI v0.2, CPU Hotplug and
CPUIdle should be able to work normally with this change.
Signed-off-by: NKhiem Nguyen <khiem.nguyen.xt@renesas.com>
Signed-off-by: NTakeshi Kihara <takeshi.kihara.df@renesas.com>
[geert: Keep "arm,psci-0.2"]
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Enable the performance monitor unit for the Cortex-A53 cores on the
R8A7795 SoC.

Extracted from a patch by Takeshi Kihara in the BSP.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This patch adds Cortex-A53 CPU cores to r8a7795 SoC for a total of 8
cores (4 x Cortex-A57 + 4 x Cortex-A53).

Based on work by Takeshi Kihara and Dirk Behme.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Since commit 61fccb2d ("ravb: Add tx and rx clock internal delays mode
of APSR") the EthernetAVB driver enables tx and rx clock internal delay
modes (TDM and RDM) depending on the phy mode as follows:

    phy mode   | ASPR delay mode
    -----------+----------------
    rgmii-id   | TDM and RDM
    rgmii-rxid | RDM
    rgmii-txid | TDM

And prior to the above commit no internal delay mode settings were
implemented for any phy mode.

With this and the above change present tx internal delay mode is enabled
which has been observed to address failures in the case of 1Gbps
communication using the by salvator-x board with the KSZ9031RNX phy. This
has been reported to occur with both the r8a7795 (H3) and r8a7796 (M3-W)
SoCs.

With the above patch present but this patch present tx and rx internal
delay modes are enabled; and with the above patch and this present absent
no internal delay modes are enabled. In both cases failures have been
observed when using 1Gbps communication in the environments described
above.
Signed-off-by: NKazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Signed-off-by: NTakeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

This patch adds I2C for DVFS device support for R8A7795 SoC.
Signed-off-by: NKeita Kobayashi <keita.kobayashi.ym@renesas.com>
Signed-off-by: NGaku Inami <gaku.inami.xw@bp.renesas.com>
Signed-off-by: NDien Pham <dien.pham.ry@rvc.renesas.com>
Signed-off-by: NTakeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Device nodes representing I/O devices should be marked disabled in the
SoC-specific DTS, and overridden by board-specific DTSes where needed.

Fixes: a92843c8 ("arm64: dts: r8a7795: add EthernetAVB device node")
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Current r8a7795.dtsi defines audma -> ipmmu -> dma order.
Because of this order, dma can connect to ipmmu, but
audma can't connect to it.
This patch moves audma order as ipmmu -> dma -> audma.
Signed-off-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Link the ARM GIC to the INTC-AP module clock, and add it to the SYSC
"always-on" PM Domain, so it can be power managed using that clock.

Note that currently the GIC-400 driver doesn't support module clocks nor
Runtime PM, so this must be handled as a critical clock.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Signed-off-by: NHien Dang <hien.dang.eb@renesas.com>
Signed-off-by: NThao Nguyen <thao.nguyen.yb@rvc.renesas.com>
Signed-off-by: NKhiem Nguyen <khiem.nguyen.xt@renesas.com>
Signed-off-by: NNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: NEduardo Valentin <edubezval@gmail.com>
Signed-off-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>