From patchwork Thu Feb 16 13:42:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13143144 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3E26C61DA4 for ; Thu, 16 Feb 2023 13:44:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Us0f7TaE83hqsqPV0VcSiV6+MTHEjIC1uUibUlETCj8=; b=q6DqMCa/oEgvta uU2oONmGkjTHSiS9Wc/S5chPIWDrESvF1Cd6YoXVmgCsnYQ64aww+2vyA3Pj/JEZsqb/qBTd8W9iE dAdntcfQfgVKUu9J1C5bu0VYLSiIcv0oAKVwqmNP0NHvDTdqgLEyyklvgsPJ8K3wNHWHCkaYes83i 90CKCFyNtIFxXXzPCX1lX/hltLvoPsw80UmekwLmQTR/1F8jhnupx0a+fHnskgIhj+G6mJXyPtWjV l46CgTuSEPOzFzT2njSU0c0RGWceCTUIePswnJ+beMZNhRUK3iidkjQnNe0XHTKjvPuVbxqGLGj1v V/kW0LOLjLEgCvDy6jyA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pSeXJ-00AMsf-2t; Thu, 16 Feb 2023 13:42:57 +0000 Received: from relay7-d.mail.gandi.net ([217.70.183.200]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pSeX5-00AMp1-Pj for linux-arm-kernel@lists.infradead.org; Thu, 16 Feb 2023 13:42:46 +0000 Received: (Authenticated sender: herve.codina@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id 4A63820004; Thu, 16 Feb 2023 13:42:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1676554961; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rn8cjJa4FG8e5ZUm02id+hD+mxkq2DEiUPzHRHzDZCM=; b=X/vxY6gMeXruas0qcDcaizNOl461w7+w1BajTOlRAFBhoi+u+bfNmw9+o4zaYpWJgICLg3 Lkm6qJw8SrM0QBtway7MmmpYzYtnzeseTRo8ygX0+qNB9/OT5uhExlvm/C1MsnYPpvuMbJ tyWn09eUnCnknHxRazCESB2VqGY9GFeMpLwGDmpLTEe9+P9G8089Zu0g8ZSE70fOQEL+eS fJo2AX/jnAzoRI9TNBtCeiqydEeYbXCTXor8vjXfgyfOuhlng3+PiNIyTtysM9TXTwS4ZO vLchpSjTA2EpHJvGq786DCM15JyKqkgZAhRSXk5AQ0oNDeJAUmLSvJ02WXN+Ew== From: Herve Codina To: Herve Codina , Li Yang , Rob Herring , Krzysztof Kozlowski , Liam Girdwood , Mark Brown , Christophe Leroy , Michael Ellerman , Nicholas Piggin , Qiang Zhao , Jaroslav Kysela , Takashi Iwai , Shengjiu Wang , Xiubo Li , Fabio Estevam , Nicolin Chen Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, Thomas Petazzoni Subject: [PATCH v5 01/10] dt-bindings: soc: fsl: cpm_qe: Add TSA controller Date: Thu, 16 Feb 2023 14:42:17 +0100 Message-Id: <20230216134226.1692107-2-herve.codina@bootlin.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230216134226.1692107-1-herve.codina@bootlin.com> References: <20230216134226.1692107-1-herve.codina@bootlin.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230216_054244_300200_24F70849 X-CRM114-Status: GOOD ( 22.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for the time slot assigner (TSA) available in some PowerQUICC SoC such as MPC885 or MPC866. Signed-off-by: Herve Codina --- .../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 234 ++++++++++++++++++ include/dt-bindings/soc/fsl,tsa.h | 13 + 2 files changed, 247 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml create mode 100644 include/dt-bindings/soc/fsl,tsa.h diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml new file mode 100644 index 000000000000..bcd03f89780e --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml @@ -0,0 +1,234 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: PowerQUICC CPM Time-slot assigner (TSA) controller + +maintainers: + - Herve Codina + +description: + The TSA is the time-slot assigner that can be found on some PowerQUICC SoC. + Its purpose is to route some TDM time-slots to other internal serial + controllers. + +properties: + compatible: + items: + - enum: + - fsl,mpc885-tsa + - fsl,mpc866-tsa + - const: fsl,cpm1-tsa + + reg: + items: + - description: SI (Serial Interface) register base + - description: SI RAM base + + reg-names: + items: + - const: si_regs + - const: si_ram + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + '#fsl,serial-cells': + $ref: /schemas/types.yaml#/definitions/uint32 + const: 1 + description: + TSA consumers that use a phandle to TSA need to pass the serial identifier + with this phandle (defined in dt-bindings/soc/fsl,tsa.h). + For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;". + +patternProperties: + '^tdm@[0-1]$': + description: + The TDM managed by this controller + type: object + + additionalProperties: false + + properties: + reg: + minimum: 0 + maximum: 1 + description: + The TDM number for this TDM, 0 for TDMa and 1 for TDMb + + fsl,common-rxtx-pins: + $ref: /schemas/types.yaml#/definitions/flag + description: + The hardware can use four dedicated pins for Tx clock, Tx sync, Rx + clock and Rx sync or use only two pins, Tx/Rx clock and Tx/Rx sync. + Without the 'fsl,common-rxtx-pins' property, the four pins are used. + With the 'fsl,common-rxtx-pins' property, two pins are used. + + clocks: + minItems: 2 + items: + - description: External clock connected to L1RSYNC pin + - description: External clock connected to L1RCLK pin + - description: External clock connected to L1TSYNC pin + - description: External clock connected to L1TCLK pin + clock-names: + minItems: 2 + items: + - const: l1rsync + - const: l1rclk + - const: l1tsync + - const: l1tclk + + fsl,diagnostic-mode: + $ref: /schemas/types.yaml#/definitions/string + enum: [disabled, echo, internal-loopback, control-loopback] + default: disabled + description: | + The diagnostic mode can be used to diagnose some communication issues. + It should not be set (or set to 'disabled') when diagnostic is not + needed. + Diagnostic mode: + - disabled: + Diagnostic disabled (ie. normal operation) + - echo: + Automatic echo. Rx data is resent on Tx. + - internal-loopback: + The TDM transmitter is connected to the receiver. Data appears + on Tx pin. + - control-loopback: + The TDM transmitter is connected to the receiver. The Tx pin is + disconnected. + + fsl,rx-frame-sync-delay-bits: + enum: [0, 1, 2, 3] + default: 0 + description: | + Receive frame sync delay in number of bits. + Indicates the delay between the Rx sync and the first bit of the Rx + frame. 0 for no bit delay. 1, 2 or 3 for 1, 2 or 3 bits delay. + + fsl,tx-frame-sync-delay-bits: + enum: [0, 1, 2, 3] + default: 0 + description: | + Transmit frame sync delay in number of bits. + Indicates the delay between the Tx sync and the first bit of the Tx + frame. 0 for no bit delay. 1, 2 or 3 for 1, 2 or 3 bits delay. + + fsl,clock-falling-edge: + $ref: /schemas/types.yaml#/definitions/flag + description: + Data is sent on falling edge of the clock (and received on the rising + edge). If 'clock-falling-edge' is not present, data is sent on the + rising edge (and received on the falling edge). + + fsl,fsync-rising-edge: + $ref: /schemas/types.yaml#/definitions/flag + description: + Frame sync pulses are sampled with the rising edge of the channel + clock. If 'fsync-rising-edge' is not present, pulses are sampled with + the falling edge. + + fsl,double-speed-clock: + $ref: /schemas/types.yaml#/definitions/flag + description: + The channel clock is twice the data rate. + + patternProperties: + '^fsl,[rt]x-ts-routes$': + $ref: /schemas/types.yaml#/definitions/uint32-matrix + description: | + A list of tuple that indicates the Tx or Rx time-slots routes. + items: + items: + - description: + The number of time-slots + minimum: 1 + maximum: 64 + - description: | + The source (Tx) or destination (Rx) serial interface + (dt-bindings/soc/fsl,tsa.h defines these values) + - 0: No destination + - 1: SCC2 + - 2: SCC3 + - 3: SCC4 + - 4: SMC1 + - 5: SMC2 + enum: [0, 1, 2, 3, 4, 5] + minItems: 1 + maxItems: 64 + + allOf: + # If fsl,common-rxtx-pins is present, only 2 clocks are needed. + # Else, the 4 clocks must be present. + - if: + required: + - fsl,common-rxtx-pins + then: + properties: + clocks: + maxItems: 2 + clock-names: + maxItems: 2 + else: + properties: + clocks: + minItems: 4 + clock-names: + minItems: 4 + + required: + - reg + - clocks + - clock-names + +required: + - compatible + - reg + - reg-names + - '#address-cells' + - '#size-cells' + - '#fsl,serial-cells' + +additionalProperties: false + +examples: + - | + #include + + tsa@ae0 { + compatible = "fsl,mpc885-tsa", "fsl,cpm1-tsa"; + reg = <0xae0 0x10>, + <0xc00 0x200>; + reg-names = "si_regs", "si_ram"; + + #address-cells = <1>; + #size-cells = <0>; + #fsl,serial-cells = <1>; + + tdm@0 { + /* TDMa */ + reg = <0>; + + clocks = <&clk_l1rsynca>, <&clk_l1rclka>; + clock-names = "l1rsync", "l1rclk"; + + fsl,common-rxtx-pins; + fsl,fsync-rising-edge; + + fsl,tx-ts-routes = < 2 0 >, /* TS 0..1 */ + < 24 FSL_CPM_TSA_SCC4 >, /* TS 2..25 */ + < 1 0 >, /* TS 26 */ + < 5 FSL_CPM_TSA_SCC3 >; /* TS 27..31 */ + + fsl,rx-ts-routes = < 2 0 >, /* TS 0..1 */ + < 24 FSL_CPM_TSA_SCC4 >, /* 2..25 */ + < 1 0 >, /* TS 26 */ + < 5 FSL_CPM_TSA_SCC3 >; /* TS 27..31 */ + }; + }; diff --git a/include/dt-bindings/soc/fsl,tsa.h b/include/dt-bindings/soc/fsl,tsa.h new file mode 100644 index 000000000000..2cc44e867dbe --- /dev/null +++ b/include/dt-bindings/soc/fsl,tsa.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */ + +#ifndef __DT_BINDINGS_SOC_FSL_TSA_H +#define __DT_BINDINGS_SOC_FSL_TSA_H + +#define FSL_CPM_TSA_NU 0 /* Pseuso Cell Id for not used item */ +#define FSL_CPM_TSA_SCC2 1 +#define FSL_CPM_TSA_SCC3 2 +#define FSL_CPM_TSA_SCC4 3 +#define FSL_CPM_TSA_SMC1 4 +#define FSL_CPM_TSA_SMC2 5 + +#endif