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[95.114.61.215]) by smtp.googlemail.com with ESMTPSA id f13-20020a170906824d00b00726e108b566sm622871ejx.173.2022.06.28.05.45.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Jun 2022 05:45:19 -0700 (PDT) From: Martin Blumenstingl To: linux-phy@lists.infradead.org, devicetree@vger.kernel.org, p.zabel@pengutronix.de Cc: linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, vkoul@kernel.org, kishon@ti.com, rtanwar@maxlinear.com, Martin Blumenstingl Subject: [PATCH v1 3/9] dt-bindings: reset: intel,rcu-gw: Update bindings for "legacy" SoCs Date: Tue, 28 Jun 2022 14:44:35 +0200 Message-Id: <20220628124441.2385023-4-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220628124441.2385023-1-martin.blumenstingl@googlemail.com> References: <20220628124441.2385023-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The Lantiq Amazon-SE, Danube, xRX100 and xRX200 SoCs have up to two USB2 PHYs which are part of the RCU register space. The RCU registers on these SoCs are using big endian. Update the binding for these SoCs to properly describe this IP: - Add compatible strings for Amazon-SE, Danube and xRX100 - Rename the xRX200 compatible string (which is not used anywhere) and switch to the one previously documented in mips/lantiq/rcu.txt - Allow usage of "simple-mfd" and "syscon" in the compatible string so the child devices (USB2 PHYs) can be described - Allow #address-cells and #size-cells to be set to 1 for describing the child devices (USB2 PHYs) - #reset-cells must always be 3 (offset, reset bit and status bit) on the legacy SoCs while LGM uses a fixed value of 2 (offset and reset bit - status bit is always identical to the reset bit). Signed-off-by: Martin Blumenstingl --- .../bindings/reset/intel,rcu-gw.yaml | 84 +++++++++++++++++-- 1 file changed, 79 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/reset/intel,rcu-gw.yaml b/Documentation/devicetree/bindings/reset/intel,rcu-gw.yaml index be64f8597710..b90913c7b7d3 100644 --- a/Documentation/devicetree/bindings/reset/intel,rcu-gw.yaml +++ b/Documentation/devicetree/bindings/reset/intel,rcu-gw.yaml @@ -11,9 +11,16 @@ maintainers: properties: compatible: - enum: - - intel,rcu-lgm - - intel,rcu-xrx200 + oneOf: + - items: + - enum: + - lantiq,ase-rcu + - lantiq,danube-rcu + - lantiq,xrx100-rcu + - lantiq,xrx200-rcu + - const: simple-mfd + - const: syscon + - const: intel,rcu-lgm reg: description: Reset controller registers. @@ -33,8 +40,6 @@ properties: maximum: 31 "#reset-cells": - minimum: 2 - maximum: 3 description: | First cell is reset request register offset. Second cell is bit offset in reset request register. @@ -43,6 +48,43 @@ properties: reset request and reset status registers is same. Whereas 3 for legacy SoCs as bit offset differs. + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + big-endian: true + +patternProperties: + "^usb2-phy@[0-9a-f]+$": + type: object + $ref: "../phy/lantiq,xway-rcu-usb2-phy.yaml" + +allOf: + - if: + properties: + compatible: + contains: + const: intel,rcu-lgm + then: + properties: + "#reset-cells": + const: 2 + - if: + properties: + compatible: + contains: + enum: + - lantiq,ase-rcu + - lantiq,danube-rcu + - lantiq,xrx100-rcu + - lantiq,xrx200-rcu + then: + properties: + "#reset-cells": + const: 3 + required: - compatible - reg @@ -67,3 +109,35 @@ examples: #pwm-cells = <2>; resets = <&rcu0 0x30 21>; }; + - | + rcu_xrx200: rcu@203000 { + compatible = "lantiq,xrx200-rcu", "simple-mfd", "syscon"; + reg = <0x203000 0x100>; + big-endian; + + #address-cells = <1>; + #size-cells = <1>; + + #reset-cells = <3>; + intel,global-reset = <0x10 30 29>; + + usb_phy0: usb2-phy@18 { + compatible = "lantiq,xrx200-usb2-phy"; + reg = <0x18 4>, <0x38 4>; + status = "disabled"; + + resets = <&rcu_xrx200 0x48 4 4>, <&rcu_xrx200 0x10 4 4>; + reset-names = "phy", "ctrl"; + #phy-cells = <0>; + }; + + usb_phy1: usb2-phy@34 { + compatible = "lantiq,xrx200-usb2-phy"; + reg = <0x34 4>, <0x3c 4>; + status = "disabled"; + + resets = <&rcu_xrx200 0x48 5 5>, <&rcu_xrx200 0x10 4 4>; + reset-names = "phy", "ctrl"; + #phy-cells = <0>; + }; + };