From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C92C2C3F2DC for ; Fri, 6 Mar 2020 04:28:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9982F2084E for ; Fri, 6 Mar 2020 04:28:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="ZZjQOHHH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727050AbgCFE2o (ORCPT ); Thu, 5 Mar 2020 23:28:44 -0500 Received: from mail-yw1-f52.google.com ([209.85.161.52]:39602 "EHLO mail-yw1-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726988AbgCFE2l (ORCPT ); Thu, 5 Mar 2020 23:28:41 -0500 Received: by mail-yw1-f52.google.com with SMTP id x184so1086609ywd.6 for ; Thu, 05 Mar 2020 20:28:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=gni/ERHExthWFIsP0a9AZaLKXwZ4DtsmIHrkv9FFJ/g=; b=ZZjQOHHHvLICFVdbvoNSiFBKx37ccWUkVp8E7u7hZUHeAgrEwRM8a7OZ3VqGESKyJZ eNcs1UdwYGVWYf819xIMYG/5M4h13AIG1pm0QXnNtvWIyqRDkjGLz0YnKjQHju3m/dK/ s/kMR/NAlCIQ4mcYqlUSDlwqDAvBjR7w5zCx9wVXjzjAf3uNCDPUWhhxidZk67jgyOLZ rtx3gKcqV10GZ1Aw1BNI0nldNBZ2siXJUggL9DmPqGZj8ldeS3vrNykaDkjO1C7oaOaT PLGIDmzGKK5l6j0vekm9eywyfN9+JFlZlHDv7C4MGDAvWgeNk2i+xWnw/52UpRgivWsD MIDQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=gni/ERHExthWFIsP0a9AZaLKXwZ4DtsmIHrkv9FFJ/g=; b=EkkeQF5/WKeEe2POTQxJovervydFZHIPLNm59uSc6gHA9vd9lgHtwCmN/C1Qq7tmld 8S8x+Z/Ofm52r9SOMrDcHGsnMcZv+d2Lu9HxSSwV0jS6F4KC1yInTJS/59UdsPLNQMhR aj6ORxgZrAXTHsGwWBXOt4D8NzH/Pe0m7Ij/UQMXNQ0MBrcEDpGUJksev9mgRnY19fi/ cuv+1RcyqUiNLzUBD/WMkHSNoiNiYRw1Lphly/NOJccfB7rdWe8csuTs0fLIrsigobn5 2yKyx5ksCviAL4DHuCpvvu1P9wgTcvPk7AT4UYzB6aBlI/xXcTjczmsYiYKyjAOB34mb W6kA== X-Gm-Message-State: ANhLgQ2G/f7AsEwpaNawAUyGt0djHRivftpmaR62elPbFWrLvc9aJsS6 ojND8h2TjYnjwpr/FLiDKZebKg== X-Google-Smtp-Source: ADFU+vvu6D2F+M9U3eMejzYO8QeU2OrRUzjgwjL3w7ZbTZBDoypIRluNrk+/A27q1TeOnSEExFIZQg== X-Received: by 2002:a81:3944:: with SMTP id g65mr2047976ywa.169.1583468920290; Thu, 05 Mar 2020 20:28:40 -0800 (PST) Received: from presto.localdomain (c-73-185-129-58.hsd1.mn.comcast.net. [73.185.129.58]) by smtp.gmail.com with ESMTPSA id x2sm12581836ywa.32.2020.03.05.20.28.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Mar 2020 20:28:39 -0800 (PST) From: Alex Elder To: Rob Herring , Mark Rutland , David Miller , Arnd Bergmann Cc: Bjorn Andersson , Andy Gross , Johannes Berg , Dan Williams , Evan Green , Eric Caruso , Susheel Yadav Yadagiri , Chaitanya Pratapa , Subash Abhinov Kasiviswanathan , Ohad Ben-Cohen , Siddharth Gupta , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring Subject: [PATCH v2 02/17] dt-bindings: soc: qcom: add IPA bindings Date: Thu, 5 Mar 2020 22:28:16 -0600 Message-Id: <20200306042831.17827-3-elder@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200306042831.17827-1-elder@linaro.org> References: <20200306042831.17827-1-elder@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add the binding definitions for the "qcom,ipa" device tree node. Signed-off-by: Alex Elder Reviewed-by: Rob Herring --- .../devicetree/bindings/net/qcom,ipa.yaml | 192 ++++++++++++++++++ 1 file changed, 192 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/qcom,ipa.yaml diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml new file mode 100644 index 000000000000..91d08f2c7791 --- /dev/null +++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml @@ -0,0 +1,192 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/qcom,ipa.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm IP Accelerator (IPA) + +maintainers: + - Alex Elder + +description: + This binding describes the Qualcomm IPA. The IPA is capable of offloading + certain network processing tasks (e.g. filtering, routing, and NAT) from + the main processor. + + The IPA sits between multiple independent "execution environments," + including the Application Processor (AP) and the modem. The IPA presents + a Generic Software Interface (GSI) to each execution environment. + The GSI is an integral part of the IPA, but it is logically isolated + and has a distinct interrupt and a separately-defined address space. + + See also soc/qcom/qcom,smp2p.txt and interconnect/interconnect.txt. + + - | + -------- --------- + | | | | + | AP +<---. .----+ Modem | + | +--. | | .->+ | + | | | | | | | | + -------- | | | | --------- + v | v | + --+-+---+-+-- + | GSI | + |-----------| + | | + | IPA | + | | + ------------- + +properties: + compatible: + const: "qcom,sdm845-ipa" + + reg: + items: + - description: IPA registers + - description: IPA shared memory + - description: GSI registers + + reg-names: + items: + - const: ipa-reg + - const: ipa-shared + - const: gsi + + clocks: + maxItems: 1 + + clock-names: + const: core + + interrupts: + items: + - description: IPA interrupt (hardware IRQ) + - description: GSI interrupt (hardware IRQ) + - description: Modem clock query interrupt (smp2p interrupt) + - description: Modem setup ready interrupt (smp2p interrupt) + + interrupt-names: + items: + - const: ipa + - const: gsi + - const: ipa-clock-query + - const: ipa-setup-ready + + interconnects: + items: + - description: Interconnect path between IPA and main memory + - description: Interconnect path between IPA and internal memory + - description: Interconnect path between IPA and the AP subsystem + + interconnect-names: + items: + - const: memory + - const: imem + - const: config + + qcom,smem-states: + $ref: /schemas/types.yaml#/definitions/phandle-array + description: State bits used in by the AP to signal the modem. + items: + - description: Whether the "ipa-clock-enabled" state bit is valid + - description: Whether the IPA clock is enabled (if valid) + + qcom,smem-state-names: + $ref: /schemas/types.yaml#/definitions/string-array + description: The names of the state bits used for SMP2P output + items: + - const: ipa-clock-enabled-valid + - const: ipa-clock-enabled + + modem-init: + type: boolean + description: + If present, it indicates that the modem is responsible for + performing early IPA initialization, including loading and + validating firwmare used by the GSI. + + modem-remoteproc: + $ref: /schemas/types.yaml#definitions/phandle + description: + This defines the phandle to the remoteproc node representing + the modem subsystem. This is requied so the IPA driver can + receive and act on notifications of modem up/down events. + + memory-region: + $ref: /schemas/types.yaml#/definitions/phandle-array + maxItems: 1 + description: + If present, a phandle for a reserved memory area that holds + the firmware passed to Trust Zone for authentication. Required + when Trust Zone (not the modem) performs early initialization. + +required: + - compatible + - reg + - clocks + - interrupts + - interconnects + - qcom,smem-states + - modem-remoteproc + +oneOf: + - required: + - modem-init + - required: + - memory-region + +examples: + - | + smp2p-mpss { + compatible = "qcom,smp2p"; + ipa_smp2p_out: ipa-ap-to-modem { + qcom,entry-name = "ipa"; + #qcom,smem-state-cells = <1>; + }; + + ipa_smp2p_in: ipa-modem-to-ap { + qcom,entry-name = "ipa"; + interrupt-controller; + #interrupt-cells = <2>; + }; + }; + ipa@1e40000 { + compatible = "qcom,sdm845-ipa"; + + modem-init; + modem-remoteproc = <&mss_pil>; + + reg = <0 0x1e40000 0 0x7000>, + <0 0x1e47000 0 0x2000>, + <0 0x1e04000 0 0x2c000>; + reg-names = "ipa-reg", + "ipa-shared"; + "gsi"; + + interrupts-extended = <&intc 0 311 IRQ_TYPE_EDGE_RISING>, + <&intc 0 432 IRQ_TYPE_LEVEL_HIGH>, + <&ipa_smp2p_in 0 IRQ_TYPE_EDGE_RISING>, + <&ipa_smp2p_in 1 IRQ_TYPE_EDGE_RISING>; + interrupt-names = "ipa", + "gsi", + "ipa-clock-query", + "ipa-setup-ready"; + + clocks = <&rpmhcc RPMH_IPA_CLK>; + clock-names = "core"; + + interconnects = + <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_EBI1>, + <&rsc_hlos MASTER_IPA &rsc_hlos SLAVE_IMEM>, + <&rsc_hlos MASTER_APPSS_PROC &rsc_hlos SLAVE_IPA_CFG>; + interconnect-names = "memory", + "imem", + "config"; + + qcom,smem-states = <&ipa_smp2p_out 0>, + <&ipa_smp2p_out 1>; + qcom,smem-state-names = "ipa-clock-enabled-valid", + "ipa-clock-enabled"; + }; -- 2.20.1