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: 13143155 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 801A0C61DA4 for ; Thu, 16 Feb 2023 13:44:29 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 52487E8A; Thu, 16 Feb 2023 14:43:37 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 52487E8A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1676555067; bh=kgSMBrXleb/isA+ukUq78jvxM83oFGYCUi0NY+14T+I=; h=From:To:Subject:Date:In-Reply-To:References:CC:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=csJObuYWGTood6Sg1eKJsH0kgMZ2X6q+awKUZ3LqbolviW29O76yxx7VtOmkHaozD lAnC5YXj1xKtuaKd2qU/bJzl3+ibL+wto0v5Ppec1eCMzMPYEkcTkR1hhVsii+8Eu6 HfQtSLk1kPXHkndJI8Ka+yI4cGoxPQalwPFNlHp8= Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 9AFA4F80171; Thu, 16 Feb 2023 14:42:48 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 16314F80171; Thu, 16 Feb 2023 14:42:45 +0100 (CET) Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::227]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 6F5F9F80083 for ; Thu, 16 Feb 2023 14:42:41 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 6F5F9F80083 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256 header.s=gm1 header.b=X/vxY6gM 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 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 Message-ID-Hash: TIJ5GFMGLAYONSJ6MPWU2BOFFN6HXA3L X-Message-ID-Hash: TIJ5GFMGLAYONSJ6MPWU2BOFFN6HXA3L X-MailFrom: herve.codina@bootlin.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header 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 X-Mailman-Version: 3.3.8 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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