From patchwork Fri May 31 03:53:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 10969601 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3106F14C0 for ; Fri, 31 May 2019 03:56:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 10B5428BB9 for ; Fri, 31 May 2019 03:56:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 01E4728BCA; Fri, 31 May 2019 03:56:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E659828BB9 for ; Fri, 31 May 2019 03:55:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726774AbfEaDzv (ORCPT ); Thu, 30 May 2019 23:55:51 -0400 Received: from mail-it1-f195.google.com ([209.85.166.195]:40077 "EHLO mail-it1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726720AbfEaDx7 (ORCPT ); Thu, 30 May 2019 23:53:59 -0400 Received: by mail-it1-f195.google.com with SMTP id h11so13031228itf.5 for ; Thu, 30 May 2019 20:53:58 -0700 (PDT) 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=JZ95IE69sVcEBRYG+tgP+o1mXucxgv2wjwcFuiPisT8=; b=um96SFt2ycKzFq9uGSVCZXnnl+5VpTPczH63AkH78WbURU0HUg0oQkJqruuHV0ekPf AA8QjULtHn5OjoK6WV2NoNuhF6m9yfc8wRoJZcor4/rN+zgLvhXNPNNNaD+506eWeiks b65grxnRRhReyKn2e9jgp2KTK+5pfby9Eo137NqKOnRPuk2aMIudpwXCI3+D3h3v/g8S BdBznrfedr5Dhtdi/DwhnleSg1EHCzi3Ol6NsCk1py2XRGGeDpr+9cGA5MCc1wWPhVmU CznBta7yL7k7P1+WkhCQIjJChcuLD3mOcnO+9aKy45Z2WPNqdnEczTSZwVWbqXLhTxXC 3aiA== 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=JZ95IE69sVcEBRYG+tgP+o1mXucxgv2wjwcFuiPisT8=; b=sSq86DYXNuxwZKXCqIBw7Zm0JogAg15MimQsQ0xx5h78XHb2O9XN1gr6YiZ25wMyXe 2KT8qtLT0th/3a03sXmgv8/csXRIE/u/XmdHakEk0EhHK1tm6JFtJ9FrB7k66J4iZfA/ g6dTiRmZStS7PRswpYw6iFU0IBuHSdlxk0524Q1rDNFVe8KW0XwdiyGNlQ3s0AzD9PzT weLdTtEkJQ5fWTjTpW6BeZt2txkPeWPTa+QwjeobWuryCFtUDGjW7FJ7LxnODvhrp26u VwJl2KsTLIdbeCAinOA+rHvc7HwskHJtmcCgD+pQP1YeSva9TzZXzJwSTmY7ge2YEhxy sVYg== X-Gm-Message-State: APjAAAU2yOmq2NL+6eWvcUxgLxGYjJFpAq5bMFNrWVXzNfrnAWTRgeMH 2e2/NXl5ANrPCISzBL/Tp4Z+AQ== X-Google-Smtp-Source: APXvYqwaoaNsdphNA/LmcRP5E4+03JIOwqNJ7oWa3ZTXbHBfI6jcDM1GZjPROsP7Jdb6VHnZlpOyGA== X-Received: by 2002:a05:660c:712:: with SMTP id l18mr5737921itk.169.1559274838050; Thu, 30 May 2019 20:53:58 -0700 (PDT) Received: from localhost.localdomain (c-71-195-29-92.hsd1.mn.comcast.net. [71.195.29.92]) by smtp.gmail.com with ESMTPSA id q15sm1626947ioi.15.2019.05.30.20.53.56 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 May 2019 20:53:57 -0700 (PDT) From: Alex Elder To: davem@davemloft.net, arnd@arndb.de, bjorn.andersson@linaro.org, ilias.apalodimas@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org Cc: evgreen@chromium.org, benchan@google.com, ejcaruso@google.com, cpratapa@codeaurora.org, syadagir@codeaurora.org, subashab@codeaurora.org, abhishek.esse@gmail.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v2 02/17] dt-bindings: soc: qcom: add IPA bindings Date: Thu, 30 May 2019 22:53:33 -0500 Message-Id: <20190531035348.7194-3-elder@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190531035348.7194-1-elder@linaro.org> References: <20190531035348.7194-1-elder@linaro.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 | 180 ++++++++++++++++++ 1 file changed, 180 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..0037fc278a61 --- /dev/null +++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml @@ -0,0 +1,180 @@ +# SPDX-License-Identifier: GPL-2.0 +%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: + 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: + 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. + + memory-region: + 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 + +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; + + 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"; + };