From: Tinghan Shen <tinghan.shen@mediatek.com>
To: Bjorn Andersson <andersson@kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Tiffany Lin <tiffany.lin@mediatek.com>,
Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
Yunfei Dong <yunfei.dong@mediatek.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Tinghan Shen <tinghan.shen@mediatek.com>
Cc: <linux-remoteproc@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-media@vger.kernel.org>
Subject: [PATCH v3 02/11] dt-bindings: remoteproc: mediatek: Support MT8195 dual-core SCP
Date: Tue, 27 Sep 2022 10:55:57 +0800 [thread overview]
Message-ID: <20220927025606.26673-3-tinghan.shen@mediatek.com> (raw)
In-Reply-To: <20220927025606.26673-1-tinghan.shen@mediatek.com>
The MT8195 SCP is a dual-core RISC-V MCU. Extend the yaml file
to describe the 2nd core as a subnode of the boot core.
The configuration register is shared by MT8195 SCP core 0
and core 1. The core 1 can retrieve the information of configuration
registers from parent node.
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
---
.../bindings/remoteproc/mtk,scp.yaml | 97 ++++++++++++++++++-
1 file changed, 92 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
index 786bed897916..c012265be4eb 100644
--- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
@@ -75,6 +75,83 @@ properties:
required:
- mediatek,rpmsg-name
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 1
+
+ ranges: true
+
+patternProperties:
+ "^scp-c[0-9]+@[a-f0-9]+$":
+ type: object
+ description:
+ The MediaTek SCP integrated to SoC might be a multi-core version.
+ The other cores are represented as child nodes of the boot core.
+ There are some integration differences for the IP like the usage of
+ address translator for translating SoC bus addresses into address space
+ for the processor.
+
+ Each SCP core has own cache memory. The SRAM and L1TCM are shared by
+ cores. The power of cache, SRAM and L1TCM power should be enabled
+ before booting SCP cores. The size of cache, SRAM, and L1TCM are varied
+ on differnt SoCs.
+
+ The SCP cores do not use an MMU, but has a set of registers to
+ control the translations between 32-bit CPU addresses into system bus
+ addresses. Cache and memory access settings are provided through a
+ Memory Protection Unit (MPU), programmable only from the SCP.
+
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt8195-scp-core
+
+ reg:
+ description: The base address and size of SRAM.
+ maxItems: 1
+
+ reg-names:
+ const: sram
+
+ interrupts:
+ maxItems: 1
+
+ firmware-name:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ If present, name (or relative path) of the file within the
+ firmware search path containing the firmware image used when
+ initializing sub cores of multi-core SCP.
+
+ memory-region:
+ maxItems: 1
+
+ cros-ec-rpmsg:
+ type: object
+ description:
+ This subnode represents the rpmsg device. The namesof the devices
+ are not important. The properties of this node are defined by the
+ individual bindings for the rpmsg devices.
+
+ properties:
+ mediatek,rpmsg-name:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description:
+ Contains the name for the rpmsg device. Used to match
+ the subnode to rpmsg device announced by SCP.
+
+ required:
+ - mediatek,rpmsg-name
+
+ required:
+ - compatible
+ - reg
+ - reg-names
+
+ additionalProperties: false
+
required:
- compatible
- reg
@@ -110,16 +187,26 @@ additionalProperties: false
examples:
- |
- #include <dt-bindings/clock/mt8192-clk.h>
-
scp@10500000 {
- compatible = "mediatek,mt8192-scp";
+ compatible = "mediatek,mt8195-scp";
reg = <0x10500000 0x80000>,
<0x10700000 0x8000>,
<0x10720000 0xe0000>;
reg-names = "sram", "cfg", "l1tcm";
- clocks = <&infracfg CLK_INFRA_SCPSYS>;
- clock-names = "main";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x105a0000 0x105a0000 0x20000>;
+
+ scp-c1@105a0000 {
+ compatible = "mediatek,mt8195-scp-core";
+ reg = <0x105a0000 0x20000>;
+ reg-names = "sram";
+
+ cros-ec-rpmsg {
+ mediatek,rpmsg-name = "cros-ec-rpmsg";
+ };
+ };
cros-ec-rpmsg {
mediatek,rpmsg-name = "cros-ec-rpmsg";
--
2.18.0
next prev parent reply other threads:[~2022-09-27 3:00 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-27 2:55 [PATCH v3 00/11] Add support for MT8195 SCP 2nd core Tinghan Shen
2022-09-27 2:55 ` [PATCH v3 01/11] dt-bindings: remoteproc: mediatek: Give the subnode a persistent name Tinghan Shen
2022-09-28 6:54 ` Peng Fan
2022-09-28 17:47 ` Krzysztof Kozlowski
2022-09-27 2:55 ` Tinghan Shen [this message]
2022-09-28 7:01 ` [PATCH v3 02/11] dt-bindings: remoteproc: mediatek: Support MT8195 dual-core SCP Peng Fan
2022-09-28 9:17 ` TingHan Shen (沈廷翰)
2022-09-28 9:37 ` Peng Fan
2022-09-28 17:50 ` Krzysztof Kozlowski
2022-09-28 17:48 ` Krzysztof Kozlowski
2022-09-27 2:55 ` [PATCH v3 03/11] arm64: dts: mt8195: Add SCP core 1 node Tinghan Shen
2022-09-27 11:01 ` AngeloGioacchino Del Regno
2023-01-17 8:19 ` TingHan Shen (沈廷翰)
2023-01-17 8:55 ` AngeloGioacchino Del Regno
2022-09-27 2:55 ` [PATCH v3 04/11] remoteproc: mediatek: Remove redundant rproc_boot Tinghan Shen
2022-09-27 11:03 ` AngeloGioacchino Del Regno
2022-09-28 8:27 ` TingHan Shen (沈廷翰)
2022-09-28 9:40 ` Peng Fan
2022-09-28 10:14 ` TingHan Shen (沈廷翰)
2022-09-27 2:56 ` [PATCH v3 05/11] remoteproc: mediatek: Add SCP core 1 register definitions Tinghan Shen
2022-09-27 11:04 ` AngeloGioacchino Del Regno
2022-09-27 2:56 ` [PATCH v3 06/11] remoteproc: mediatek: Add MT8195 SCP core 1 operations Tinghan Shen
2022-09-27 2:56 ` [PATCH v3 07/11] remoteproc: mediatek: Probe MT8195 SCP core 1 Tinghan Shen
2022-09-27 2:56 ` [PATCH v3 08/11] remoteproc: mediatek: Control SCP core 1 boot by rproc subdevice Tinghan Shen
2022-09-27 2:56 ` [PATCH v3 09/11] remoteproc: mediatek: Setup MT8195 SCP core 1 SRAM offset Tinghan Shen
2022-09-27 2:56 ` [PATCH v3 10/11] remoteproc: mediatek: Handle MT8195 SCP core 1 watchdog timeout Tinghan Shen
2022-09-27 2:56 ` [PATCH v3 11/11] remoteproc: mediatek: Refine ipi handler error message Tinghan Shen
2022-09-27 11:06 ` AngeloGioacchino Del Regno
2022-11-01 20:40 ` [PATCH v3 00/11] Add support for MT8195 SCP 2nd core Mathieu Poirier
2023-01-17 7:43 ` TingHan Shen (沈廷翰)
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=20220927025606.26673-3-tinghan.shen@mediatek.com \
--to=tinghan.shen@mediatek.com \
--cc=andersson@kernel.org \
--cc=andrew-ct.chen@mediatek.com \
--cc=devicetree@vger.kernel.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@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=mchehab@kernel.org \
--cc=robh+dt@kernel.org \
--cc=tiffany.lin@mediatek.com \
--cc=yunfei.dong@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).