From: Gatien Chevallier <gatien.chevallier@foss.st.com>
To: <Oleksii_Moisieiev@epam.com>, <gregkh@linuxfoundation.org>,
<herbert@gondor.apana.org.au>, <davem@davemloft.net>,
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<vkoul@kernel.org>, <jic23@kernel.org>,
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Cc: <linux-crypto@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <dmaengine@vger.kernel.org>,
<linux-i2c@vger.kernel.org>, <linux-iio@vger.kernel.org>,
<alsa-devel@alsa-project.org>, <linux-media@vger.kernel.org>,
<linux-mmc@vger.kernel.org>, <netdev@vger.kernel.org>,
<linux-phy@lists.infradead.org>, <linux-serial@vger.kernel.org>,
<linux-spi@vger.kernel.org>, <linux-usb@vger.kernel.org>,
Gatien Chevallier <gatien.chevallier@foss.st.com>,
Rob Herring <robh@kernel.org>
Subject: [PATCH v9 04/13] dt-bindings: bus: document ETZPC
Date: Fri, 5 Jan 2024 14:03:55 +0100 [thread overview]
Message-ID: <20240105130404.301172-5-gatien.chevallier@foss.st.com> (raw)
In-Reply-To: <20240105130404.301172-1-gatien.chevallier@foss.st.com>
Document ETZPC (Extended TrustZone protection controller). ETZPC is a
firewall controller.
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes in V9:
- Added "simple-bus" to ETZPC's compatible list
- Added Rob's review tag
Changes in V6:
- Renamed access-controller to access-controllers
- Removal of access-control-provider property
- Removal of access-controller and access-controller-names
declaration in the patternProperties field. Add
additionalProperties: true in this field.
Changes in V5:
- Renamed feature-domain* to access-control*
Changes in V2:
- Corrected errors highlighted by Rob's robot
- No longer define the maxItems for the "feature-domains"
property
- Fix example (node name, status)
- Declare "feature-domain-names" as an optional
property for child nodes
- Fix description of "feature-domains" property
- Reordered the properties so it matches ETZPC
- Add missing "feature-domain-controller" property
.../bindings/bus/st,stm32-etzpc.yaml | 96 +++++++++++++++++++
1 file changed, 96 insertions(+)
create mode 100644 Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
diff --git a/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml b/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
new file mode 100644
index 000000000000..d12b62a3a5a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/st,stm32-etzpc.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/st,stm32-etzpc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STM32 Extended TrustZone protection controller
+
+description: |
+ The ETZPC configures TrustZone security in a SoC having bus masters and
+ devices with programmable-security attributes (securable resources).
+
+maintainers:
+ - Gatien Chevallier <gatien.chevallier@foss.st.com>
+
+select:
+ properties:
+ compatible:
+ contains:
+ const: st,stm32-etzpc
+ required:
+ - compatible
+
+properties:
+ compatible:
+ items:
+ - const: st,stm32-etzpc
+ - const: simple-bus
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges: true
+
+ "#access-controller-cells":
+ const: 1
+ description:
+ Contains the firewall ID associated to the peripheral.
+
+patternProperties:
+ "^.*@[0-9a-f]+$":
+ description: Peripherals
+ type: object
+
+ additionalProperties: true
+
+ required:
+ - access-controllers
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - "#access-controller-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ // In this example, the usart2 device refers to rifsc as its access
+ // controller.
+ // Access rights are verified before creating devices.
+
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/clock/stm32mp13-clks.h>
+ #include <dt-bindings/reset/stm32mp13-resets.h>
+
+ etzpc: bus@5c007000 {
+ compatible = "st,stm32-etzpc", "simple-bus";
+ reg = <0x5c007000 0x400>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ #access-controller-cells = <1>;
+ ranges;
+
+ usart2: serial@4c001000 {
+ compatible = "st,stm32h7-uart";
+ reg = <0x4c001000 0x400>;
+ interrupts-extended = <&exti 27 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&rcc USART2_K>;
+ resets = <&rcc USART2_R>;
+ wakeup-source;
+ dmas = <&dmamux1 43 0x400 0x5>,
+ <&dmamux1 44 0x400 0x1>;
+ dma-names = "rx", "tx";
+ access-controllers = <&etzpc 17>;
+ };
+ };
--
2.35.3
next prev parent reply other threads:[~2024-01-05 13:07 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-05 13:03 [PATCH v9 00/13] Introduce STM32 Firewall framework Gatien Chevallier
2024-01-05 13:03 ` [PATCH v9 01/13] dt-bindings: document generic access controllers Gatien Chevallier
2024-01-05 13:03 ` [PATCH v9 02/13] dt-bindings: treewide: add access-controllers description Gatien Chevallier
2024-01-19 22:06 ` Rob Herring
2024-01-05 13:03 ` [PATCH v9 03/13] dt-bindings: bus: document RIFSC Gatien Chevallier
2024-01-05 13:03 ` Gatien Chevallier [this message]
2024-01-05 13:03 ` [PATCH v9 05/13] firewall: introduce stm32_firewall framework Gatien Chevallier
2024-01-05 13:03 ` [PATCH v9 06/13] of: property: fw_devlink: Add support for "access-controller" Gatien Chevallier
2024-04-24 5:57 ` Saravana Kannan
2024-04-24 12:19 ` Alexandre TORGUE
2024-01-05 13:03 ` [PATCH v9 07/13] bus: rifsc: introduce RIFSC firewall controller driver Gatien Chevallier
2024-01-05 13:03 ` [PATCH v9 08/13] arm64: dts: st: add RIFSC as an access controller for STM32MP25x boards Gatien Chevallier
2024-01-05 13:04 ` [PATCH v9 09/13] bus: etzpc: introduce ETZPC firewall controller driver Gatien Chevallier
2024-01-05 13:04 ` [PATCH v9 10/13] ARM: dts: stm32: add ETZPC as a system bus for STM32MP15x boards Gatien Chevallier
2024-01-05 13:04 ` [PATCH v9 11/13] ARM: dts: stm32: put ETZPC as an access controller " Gatien Chevallier
2024-01-05 13:04 ` [PATCH v9 12/13] ARM: dts: stm32: add ETZPC as a system bus for STM32MP13x boards Gatien Chevallier
2024-01-05 13:04 ` [PATCH v9 13/13] ARM: dts: stm32: put ETZPC as an access controller " Gatien Chevallier
2024-04-08 8:42 ` [PATCH v9 00/13] Introduce STM32 Firewall framework Alexandre TORGUE
2024-04-09 17:13 ` Rob Herring
2024-04-11 9:37 ` Alexandre TORGUE
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