From patchwork Fri May 31 03:47:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Elder X-Patchwork-Id: 1108007 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.b="lDX0zltl"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45FVlH4VkSz9sB8 for ; Fri, 31 May 2019 13:47:39 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726535AbfEaDrj (ORCPT ); Thu, 30 May 2019 23:47:39 -0400 Received: from mail-it1-f193.google.com ([209.85.166.193]:35174 "EHLO mail-it1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726531AbfEaDri (ORCPT ); Thu, 30 May 2019 23:47:38 -0400 Received: by mail-it1-f193.google.com with SMTP id u186so13063072ith.0 for ; Thu, 30 May 2019 20:47:38 -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=lDX0zltlHwkGmHaD/QhPP2dn1/R+51k+fqjdEq4k9v2prYwHQ8re+NpO8snOAshpTB BgXm7TTVFdN1phkjeun8i0IkZmXcS97Pk04T7psqATE2CJiTLHjsN2Lncm24Yh0UUOql nxq8gXxfaNpEmH7WArLzvvU1iC0Ly/pvQEa+RJhzdny5gVZCDgifWPoe89NrzQlM0gpi YnbKulutrucocBBlWdPy69XBFmVLSHbd4pq8YU7pHgIJs0vaB7E7fssHJJchibABbkvw PCqHAYju6bzQXj12N0l8bf7jvx23tp6C+iO4pTIxoo/3yl7JAfWG2cDnSmQSmw2VUOCL kAjA== 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=dwDMOTNwn+wHDi4vSo+FPs22bewfIV8TjYtu205zZbin8iN6logbHNRkoh8zyVc/Cc k6nximkHOdnfOhI20kuZzM59ZnEKJF/zhZt3XpAZt+2SyaSYVhD1p/zfcKM/U4oh6CPs 38cT5zXdHpDfq/BSZUNBfhGN8fl5GcNUUYcOeWq9H5jQt43NNQ/6YnXP+A5OocGMPRmt GgoGkpQ0GywT709XZ0mAEssWNngKSisCinzIP9z2Cw2Mo663JkZPp/iJnsEdP0Kpvrm1 vJZZoIQsFur2nIiyti8m65rgvwIKev230a0hqLwukEPc/r3165t80018fObzSmwm7vQM CJxg== X-Gm-Message-State: APjAAAVHytKz7XDPcKmee+txvAK0kVS/g7OCni5Y4+lOYq85Lsamx+qk egOIBs0XmV8Ot4WHuTkXLyr3ZA== X-Google-Smtp-Source: APXvYqztwA/ctSMtA8ZBwm4FA5XOouXFxdpcfssC+tFUqc99d1al1No40IWgcRVe7OKveyxStkwdlw== X-Received: by 2002:a24:5a06:: with SMTP id v6mr6172832ita.160.1559274457698; Thu, 30 May 2019 20:47:37 -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 v190sm2225945ita.14.2019.05.30.20.47.36 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 May 2019 20:47:37 -0700 (PDT) From: Alex Elder To: elder@ieee.org, robh+dt@kernel.org, mark.rutland@arm.com, devicetree@vger.kernel.org Cc: elder@computer.org Subject: [PATCH v2 02/17] dt-bindings: soc: qcom: add IPA bindings Date: Thu, 30 May 2019 22:47:13 -0500 Message-Id: <20190531034728.7001-3-elder@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190531034728.7001-1-elder@linaro.org> References: <20190531034728.7001-1-elder@linaro.org> MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the binding definitions for the "qcom,ipa" device tree node. Signed-off-by: Alex Elder --- .../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"; + };