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[2003:f1:33d6:2000:90fb:6f2a:c02:d39b]) by smtp.googlemail.com with ESMTPSA id w10sm5141825wru.76.2019.07.04.05.23.37 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Thu, 04 Jul 2019 05:23:38 -0700 (PDT) From: Martin Blumenstingl To: linux-mips@vger.kernel.org, devicetree@vger.kernel.org, john@phrozen.org, kishon@ti.com, robh+dt@kernel.org Cc: linux-kernel@vger.kernel.org, hauke@hauke-m.de, paul.burton@mips.com, ralf@linux-mips.org, mark.rutland@arm.com, ms@dev.tdt.de, Martin Blumenstingl Subject: [PATCH v2 1/4] dt-bindings: phy: add binding for the Lantiq VRX200 and ARX300 PCIe PHYs Date: Thu, 4 Jul 2019 14:23:16 +0200 Message-Id: <20190704122319.8983-2-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190704122319.8983-1-martin.blumenstingl@googlemail.com> References: <20190704122319.8983-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the bindings for the PCIe PHY on Lantiq VRX200 and ARX300 SoCs. The IP block contains settings for the PHY and a PLL. The PLL mode is configurable through a dedicated #phy-cell in .dts. Signed-off-by: Martin Blumenstingl Reviewed-by: Rob Herring --- .../bindings/phy/lantiq,vrx200-pcie-phy.yaml | 95 +++++++++++++++++++ .../dt-bindings/phy/phy-lantiq-vrx200-pcie.h | 11 +++ 2 files changed, 106 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml create mode 100644 include/dt-bindings/phy/phy-lantiq-vrx200-pcie.h diff --git a/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml new file mode 100644 index 000000000000..8a56a8526cef --- /dev/null +++ b/Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml @@ -0,0 +1,95 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/lantiq,vrx200-pcie-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lantiq VRX200 and ARX300 PCIe PHY Device Tree Bindings + +maintainers: + - Martin Blumenstingl + +properties: + "#phy-cells": + const: 1 + description: selects the PHY mode as defined in + + compatible: + enum: + - lantiq,vrx200-pcie-phy + - lantiq,arx300-pcie-phy + + reg: + maxItems: 1 + + clocks: + items: + - description: PHY module clock + - description: PDI register clock + + clock-names: + items: + - const: phy + - const: pdi + + resets: + items: + - description: exclusive PHY reset line + - description: shared reset line between the PCIe PHY and PCIe controller + + resets-names: + items: + - const: phy + - const: pcie + + lantiq,rcu: + $ref: /schemas/types.yaml#/definitions/phandle + description: phandle to the RCU syscon + + lantiq,rcu-endian-offset: + $ref: /schemas/types.yaml#/definitions/uint32 + description: the offset of the endian registers for this PHY instance in the RCU syscon + + lantiq,rcu-big-endian-mask: + $ref: /schemas/types.yaml#/definitions/uint32 + description: the mask to set the PDI (PHY) registers for this PHY instance to big endian + + big-endian: + description: Configures the PDI (PHY) registers in big-endian mode + type: boolean + + little-endian: + description: Configures the PDI (PHY) registers in big-endian mode + type: boolean + +required: + - "#phy-cells" + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - lantiq,rcu + - lantiq,rcu-endian-offset + - lantiq,rcu-big-endian-mask + +additionalProperties: false + +examples: + - | + pcie0_phy: phy@106800 { + compatible = "lantiq,vrx200-pcie-phy"; + reg = <0x106800 0x100>; + lantiq,rcu = <&rcu0>; + lantiq,rcu-endian-offset = <0x4c>; + lantiq,rcu-big-endian-mask = <0x80>; /* bit 7 */ + big-endian; + clocks = <&pmu 32>, <&pmu 36>; + clock-names = "phy", "pdi"; + resets = <&reset0 12 24>, <&reset0 22 22>; + reset-names = "phy", "pcie"; + #phy-cells = <1>; + }; + +... diff --git a/include/dt-bindings/phy/phy-lantiq-vrx200-pcie.h b/include/dt-bindings/phy/phy-lantiq-vrx200-pcie.h new file mode 100644 index 000000000000..95a7896356d6 --- /dev/null +++ b/include/dt-bindings/phy/phy-lantiq-vrx200-pcie.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2019 Martin Blumenstingl + */ + +#define LANTIQ_PCIE_PHY_MODE_25MHZ 0 +#define LANTIQ_PCIE_PHY_MODE_25MHZ_SSC 1 +#define LANTIQ_PCIE_PHY_MODE_36MHZ 2 +#define LANTIQ_PCIE_PHY_MODE_36MHZ_SSC 3 +#define LANTIQ_PCIE_PHY_MODE_100MHZ 4 +#define LANTIQ_PCIE_PHY_MODE_100MHZ_SSC 5