From: Rob Herring <robh@kernel.org>
To: Ben Levinsky <ben.levinsky@xilinx.com>
Cc: ohad@wizery.com, bjorn.andersson@linaro.org,
michal.simek@xilinx.com, jollys@xilinx.com,
rajan.vaja@xilinx.com, mark.rutland@arm.com,
linux-remoteproc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, Jason Wu <j.wu@xilinx.com>,
Wendy Liang <jliang@xilinx.com>
Subject: Re: [PATCH v4 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings
Date: Mon, 11 May 2020 17:17:55 -0500 [thread overview]
Message-ID: <20200511221755.GA13585@bogus> (raw)
In-Reply-To: <1587749770-15082-5-git-send-email-ben.levinsky@xilinx.com>
On Fri, Apr 24, 2020 at 10:36:09AM -0700, Ben Levinsky wrote:
> Add binding for ZynqMP R5 OpenAMP.
>
> Represent the RPU domain resources in one device node. Each RPU
> processor is a subnode of the top RPU domain node.
This needs to be sorted out as part of the system DT effort that Xilinx
is working on. I can't see this binding co-existing with it.
>
> Signed-off-by: Ben Levinsky <ben.levinsky@xilinx.com>
> Signed-off-by: Jason Wu <j.wu@xilinx.com>
> Signed-off-by: Wendy Liang <jliang@xilinx.com>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> ---
> Changes since v2:
> - update zynqmp_r5 yaml parsing to not raise warnings for extra
> information in children of R5 node. The warning "node has a unit
> name, but no reg or ranges property" will still be raised though
> as this particular node is needed to describe the
> '#address-cells' and '#size-cells' information.
> Changes since 3:
> - remove warning '/example-0/rpu@ff9a0000/r5@0:
> node has a unit name, but no reg or ranges property'
> by adding reg to r5 node.
> ---
>
> .../remoteproc/xilinx,zynqmp-r5-remoteproc.yaml | 127 +++++++++++++++++++++
> 1 file changed, 127 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml
>
> diff --git a/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml
> new file mode 100644
> index 0000000..41520b6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml
> @@ -0,0 +1,127 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/remoteproc/xilinx,zynqmp-r5-remoteproc.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: Xilinx R5 remote processor controller bindings
> +
> +description:
> + This document defines the binding for the remoteproc component that loads and
> + boots firmwares on the Xilinx Zynqmp and Versal family chipset.
> +
> +maintainers:
> + - Ed Mooring <ed.mooring@xilinx.com>
> + - Ben Levinsky <ben.levinsky@xilinx.com>
> +
> +properties:
> + compatible:
> + const: "xlnx,zynqmp-r5-remoteproc-1.0"
> +
> + core_conf:
> + description:
> + R5 core configuration (valid string - split or lock-step)
> + maxItems: 1
> +
> + interrupts:
> + description:
> + Interrupt mapping for remoteproc IPI. It is required if the
> + user uses the remoteproc driver with the RPMsg kernel driver.
> + maxItems: 6
> +
> + memory-region:
> + maxItems: 4
> + minItems: 4
> + pnode-id:
> + maxItems: 1
What is this?
> + mboxes:
> + maxItems: 2
> + mbox-names:
> + maxItems: 2
> +
> + r5@0:
> + type: object
> + required:
> + - '#address-cells'
> + - '#size-cells'
> + - pnode-id
> +examples:
> + - |
> + reserved-memory {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> + rpu0vdev0vring0: rpu0vdev0vring0@3ed40000 {
> + no-map;
> + reg = <0x3ed40000 0x4000>;
> + };
> + rpu0vdev0vring1: rpu0vdev0vring1@3ed44000 {
> + no-map;
> + reg = <0x3ed44000 0x4000>;
> + };
> + rpu0vdev0buffer: rpu0vdev0buffer@3ed48000 {
> + no-map;
> + reg = <0x3ed48000 0x100000>;
> + };
> + rproc_0_reserved: rproc@3ed000000 {
> + no-map;
> + reg = <0x3ed00000 0x40000>;
> + };
> + };
> + rpu: rpu@ff9a0000 {
> + compatible = "xlnx,zynqmp-r5-remoteproc-1.0";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> + core_conf = "split";
If split, then where is the 2nd core?
> + reg = <0xFF9A0000 0x10000>;
> + r5_0: r5@0 {
Unit-addresses are based on 'reg' values.
> + ranges;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0xFF9A0100 0x1000>;
> + memory-region = <&rproc_0_reserved>, <&rpu0vdev0buffer>, <&rpu0vdev0vring0>, <&rpu0vdev0vring1>;
> + pnode-id = <0x7>;
> + mboxes = <&ipi_mailbox_rpu0 0>, <&ipi_mailbox_rpu0 1>;
> + mbox-names = "tx", "rx";
> + tcm_0_a: tcm_0@0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0xFFE00000 0x10000>;
> + pnode-id = <0xf>;
These nodes probably need some sort of compatible. And don't the TCMs
have different addresses for R5 vs. the A cores?
> + };
> + tcm_0_b: tcm_0@1 {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + reg = <0xFFE20000 0x10000>;
> + pnode-id = <0x10>;
> + };
> + };
> + };
> +
> +
> + zynqmp_ipi1 {
> + compatible = "xlnx,zynqmp-ipi-mailbox";
> + interrupt-parent = <&gic>;
> + interrupts = <0 29 4>;
> + xlnx,ipi-id = <7>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + /* APU<->RPU0 IPI mailbox controller */
> + ipi_mailbox_rpu0: mailbox@ff90000 {
> + reg = <0xff990600 0x20>,
> + <0xff990620 0x20>,
> + <0xff9900c0 0x20>,
> + <0xff9900e0 0x20>;
> + reg-names = "local_request_region",
> + "local_response_region",
> + "remote_request_region",
> + "remote_response_region";
> + #mbox-cells = <1>;
> + xlnx,ipi-id = <1>;
> + };
> + };
> +
> +...
> --
> 2.7.4
>
next prev parent reply other threads:[~2020-05-11 22:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-24 17:36 [PATCH v4 0/5] remoteproc: Add zynqmp_r5 driver Ben Levinsky
2020-04-24 17:36 ` [PATCH v4 1/5] firmware: xilinx: Add ZynqMP firmware ioctl enums for RPU configuration Ben Levinsky
2020-04-24 17:36 ` [PATCH v4 2/5] firmware: xilinx: Add shutdown/wakeup APIs Ben Levinsky
2020-04-24 17:36 ` [PATCH v4 3/5] firmware: xilinx: Add RPU configuration APIs Ben Levinsky
2020-04-24 17:36 ` [PATCH v4 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings Ben Levinsky
2020-05-11 22:17 ` Rob Herring [this message]
2020-05-26 17:40 ` Ben Levinsky
2020-06-10 20:38 ` Rob Herring
2020-06-30 0:37 ` Stefano Stabellini
2020-06-30 2:20 ` Bjorn Andersson
2020-06-30 15:38 ` Ben Levinsky
2020-06-30 17:11 ` Ben Levinsky
2020-07-10 17:42 ` Stefano Stabellini
2020-04-24 17:36 ` [PATCH v4 5/5] remoteproc: Add initial zynqmp R5 remoteproc driver Ben Levinsky
2020-05-05 20:53 ` Mathieu Poirier
2020-05-06 21:36 ` Mathieu Poirier
2020-05-07 22:08 ` Mathieu Poirier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200511221755.GA13585@bogus \
--to=robh@kernel.org \
--cc=ben.levinsky@xilinx.com \
--cc=bjorn.andersson@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=j.wu@xilinx.com \
--cc=jliang@xilinx.com \
--cc=jollys@xilinx.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=michal.simek@xilinx.com \
--cc=ohad@wizery.com \
--cc=rajan.vaja@xilinx.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).