From patchwork Tue May 29 21:58:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ray Jui X-Patchwork-Id: 10437179 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D903B602BF for ; Tue, 29 May 2018 21:59:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C6DB428864 for ; Tue, 29 May 2018 21:59:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BB6BD2886B; Tue, 29 May 2018 21:59:12 +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=ham 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 57EA828864 for ; Tue, 29 May 2018 21:59:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967454AbeE2V7K (ORCPT ); Tue, 29 May 2018 17:59:10 -0400 Received: from mail-qt0-f194.google.com ([209.85.216.194]:41105 "EHLO mail-qt0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967432AbeE2V7E (ORCPT ); Tue, 29 May 2018 17:59:04 -0400 Received: by mail-qt0-f194.google.com with SMTP id g13-v6so20727187qth.8 for ; Tue, 29 May 2018 14:59:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=jp3kKZhXZlMHUOgH9oB25CUYn99LetKAbfrIqvO9ZxM=; b=Tunpuk7qHA9ZMxNQNayC1eZ3v6JMllV51ZZ9y0g/kRHzLpLwmOzFAF97rsBazreozr zQ4LESUAnMS6Oihfpt+RX+BasFQWABreOyawfcI4eT9iG55ygjug2PCZ9pB6brz7+KJF 7h/QJnoe7HoxK2Bqy4RWf9xTqFgHxzQb/8EzA= 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; bh=jp3kKZhXZlMHUOgH9oB25CUYn99LetKAbfrIqvO9ZxM=; b=kkJlWk9uWrIql/+mUY0yzTGTPrmCacmcQsMBaBBAhuIb9FJfD2uhaM95h0VbcpDdNE 8UW7Fh/s553oSRGlOkKOvTyU0GtV+5werHJpVaELskkqAGj/ouHlC4lCbu8SHUybBy76 LS7dgDBjytLc51tNOk4KTbJ2udmxDOr60K/PWXvteLyLuPwYPksrhHabgUhuwiKC8iCq +Es9V4AzVmlUporMBY6dX8qNQYUViS90Qn6jzd90Wj88LlG6ZWSJXeTUKl7CvKfY3RRv WGd0DEHbS3wsaEMAeV1ARP3o3Qs53GrqHbhCWDNV6W/wZhJP8FMP+eRgOdP7+HaNli7y NM4A== X-Gm-Message-State: APt69E31/8jcCZRYiA7X/LVCf27qAgSyjk/ihahNOMHCSfV1xzE6/olM HJt6x7DoYKES/fQyyt+7wZXFEQ== X-Google-Smtp-Source: ADUXVKLk2yirpYLOmwAK7waM6jzBjZJXh6AGaXkWLtXo9xVQb8ojSz+f7idgcIk420aa8z3Fh/WP3g== X-Received: by 2002:a0c:83e5:: with SMTP id k92-v6mr177783qva.85.1527631143821; Tue, 29 May 2018 14:59:03 -0700 (PDT) Received: from lbrmn-lnxub44-1.ric.broadcom.com ([192.19.228.250]) by smtp.gmail.com with ESMTPSA id a83-v6sm23217073qkb.22.2018.05.29.14.59.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 29 May 2018 14:59:02 -0700 (PDT) From: Ray Jui To: Lorenzo Pieralisi , Bjorn Helgaas , Rob Herring , Mark Rutland Cc: linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Ray Jui Subject: [PATCH 1/6] PCI: iproc: Update iProc PCI binding for INTx support Date: Tue, 29 May 2018 14:58:45 -0700 Message-Id: <1527631130-20045-2-git-send-email-ray.jui@broadcom.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1527631130-20045-1-git-send-email-ray.jui@broadcom.com> References: <1527631130-20045-1-git-send-email-ray.jui@broadcom.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Update the iProc PCIe binding document for better modeling of the legacy interrupt (INTx) support Signed-off-by: Ray Jui --- .../devicetree/bindings/pci/brcm,iproc-pcie.txt | 31 +++++++++++++++++----- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt index b8e48b4..7ea24dc 100644 --- a/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt +++ b/Documentation/devicetree/bindings/pci/brcm,iproc-pcie.txt @@ -13,9 +13,6 @@ controller, used in Stingray PAXB-based root complex is used for external endpoint devices. PAXC-based root complex is connected to emulated endpoint devices internal to the ASIC - reg: base address and length of the PCIe controller I/O register space -- #interrupt-cells: set to <1> -- interrupt-map-mask and interrupt-map, standard PCI properties to define the - mapping of the PCIe interface to interrupt numbers - linux,pci-domain: PCI domain ID. Should be unique for each host controller - bus-range: PCI bus numbers covered - #address-cells: set to <3> @@ -41,6 +38,16 @@ Required: - brcm,pcie-ob-axi-offset: The offset from the AXI address to the internal address used by the iProc PCIe core (not the PCIe address) +Legacy interrupt (INTx) support (optional): + +Note INTx is for PAXB only. + +- interrupt-controller: claims itself as an interrupt controller for INTx +- #interrupt-cells: set to <1> +- interrupt-map-mask and interrupt-map, standard PCI properties to define +the mapping of the PCIe interface to interrupt numbers +- interrupts: interrupt line wired to the generic GIC for INTx support + MSI support (optional): For older platforms without MSI integrated in the GIC, iProc PCIe core provides @@ -77,9 +84,14 @@ Example: compatible = "brcm,iproc-pcie"; reg = <0x18012000 0x1000>; + interrupt-controller; #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &gic GIC_SPI 100 IRQ_TYPE_NONE>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie0 1>, + <0 0 0 2 &pcie0 2>, + <0 0 0 3 &pcie0 3>, + <0 0 0 4 &pcie0 4>; + interrupts = ; linux,pci-domain = <0>; @@ -115,9 +127,14 @@ Example: compatible = "brcm,iproc-pcie"; reg = <0x18013000 0x1000>; + interrupt-controller; #interrupt-cells = <1>; - interrupt-map-mask = <0 0 0 0>; - interrupt-map = <0 0 0 0 &gic GIC_SPI 106 IRQ_TYPE_NONE>; + interrupt-map-mask = <0 0 0 7>; + interrupt-map = <0 0 0 1 &pcie1 1>, + <0 0 0 2 &pcie1 2>, + <0 0 0 3 &pcie1 3>, + <0 0 0 4 &pcie1 4>; + interrupts = ; linux,pci-domain = <1>;