From: Alexandre Bailon <abailon@baylibre.com>
To: ohad@wizery.com, bjorn.andersson@linaro.org, robh+dt@kernel.org,
matthias.bgg@gmail.com, mathieu.poirier@linaro.org
Cc: devicetree@vger.kernel.org, stephane.leprovost@mediatek.com,
linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
gpain@baylibre.com, linux-mediatek@lists.infradead.org,
Alexandre Bailon <abailon@baylibre.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 1/4] dt bindings: remoteproc: Add bindings for MT8183 APU
Date: Thu, 10 Sep 2020 15:01:45 +0200 [thread overview]
Message-ID: <20200910130148.8734-2-abailon@baylibre.com> (raw)
In-Reply-To: <20200910130148.8734-1-abailon@baylibre.com>
This adds dt bindings for the APU present in the MT8183.
Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
---
.../bindings/remoteproc/mtk,apu.yaml | 107 ++++++++++++++++++
1 file changed, 107 insertions(+)
create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
new file mode 100644
index 000000000000..7a71d2f5c4e6
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,apu.yaml
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+
+---
+$id: "http://devicetree.org/schemas/remoteproc/mtk,apu.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MT8183 AI Processor Unit (APU) a.k.a. Vision Processor Unit (VPU)
+
+description:
+ This document defines the binding for the APU, a co-processor that could
+ offload the CPU for machine learning and neural network.
+
+maintainers:
+ - Alexandre Bailon <abailon@bayLibre.com>
+
+properties:
+ compatible:
+ const: mediatek,mt8183-apu
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description:
+ Three clocks are expected for AXI, IPU and JTAG.
+ The JTAG clock seems to be required to run the DSP,
+ even when JTAG is not in use."
+ maxItems: 3
+
+ clock-names:
+ items:
+ - const: axi
+ - const: ipu
+ - const: jtag
+
+ iommus:
+ maxItems: 3
+
+ memory-region:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+ pinctrl:
+ description: pinctrl handles, required to configure pins for JTAG.
+
+ pinctrl-names:
+ items:
+ - const: jtag
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+ - iommus
+ - memory-region
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/memory/mt8183-larb-port.h>
+ #include <dt-bindings/power/mt8183-power.h>
+
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ apu_ram: apu_ram@0x60000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x60000000 0x040000000>;
+ no-map;
+ linux,cma-default;
+ };
+ };
+
+ apu0: apu@19100000 {
+ compatible = "mediatek,mt8183-apu";
+ reg = <0x19180000 0x14000>;
+ interrupts = <GIC_SPI 292 IRQ_TYPE_LEVEL_LOW>;
+
+ iommus = <&iommu M4U_PORT_IMG_IPUO>,
+ <&iommu M4U_PORT_IMG_IPU3O>,
+ <&iommu M4U_PORT_IMG_IPUI>;
+
+ clocks = <&ipu_core0 CLK_IPU_CORE0_AXI>,
+ <&ipu_core0 CLK_IPU_CORE0_IPU>,
+ <&ipu_core0 CLK_IPU_CORE0_JTAG>;
+
+ clock-names = "axi", "ipu", "jtag";
+
+ power-domains = <&scpsys MT8183_POWER_DOMAIN_VPU_CORE0>;
+ memory-region = <&apu_ram>;
+ };
+...
--
2.26.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-09-10 13:03 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 13:01 [PATCH v2 0/4] Add support of mt8183 APU Alexandre Bailon
2020-09-10 13:01 ` Alexandre Bailon [this message]
2020-09-11 22:51 ` [PATCH v2 1/4] dt bindings: remoteproc: Add bindings for MT8183 APU Rob Herring
2020-09-11 22:52 ` Rob Herring
2020-09-29 17:30 ` Mathieu Poirier
2020-09-10 13:01 ` [PATCH v2 2/4] remoteproc: Add a remoteproc driver for the MT8183's APU Alexandre Bailon
2020-09-29 17:52 ` Mathieu Poirier
2021-07-20 8:47 ` Alexandre Bailon
2020-09-10 13:01 ` [PATCH v2 3/4] remoteproc: mtk_vpu_rproc: Add support of JTAG Alexandre Bailon
2020-09-29 18:01 ` Mathieu Poirier
2020-09-10 13:01 ` [PATCH v2 4/4] ARM64: mt8183: Add support of APU to mt8183 Alexandre Bailon
2020-09-12 7:50 ` kernel test robot
2020-09-23 23:11 ` [PATCH v2 0/4] Add support of mt8183 APU 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=20200910130148.8734-2-abailon@baylibre.com \
--to=abailon@baylibre.com \
--cc=bjorn.andersson@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=gpain@baylibre.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=mathieu.poirier@linaro.org \
--cc=matthias.bgg@gmail.com \
--cc=ohad@wizery.com \
--cc=robh+dt@kernel.org \
--cc=stephane.leprovost@mediatek.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).