From patchwork Wed Mar 4 19:39:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Duc Dang X-Patchwork-Id: 5939781 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BE17EBF6C3 for ; Wed, 4 Mar 2015 19:48:26 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EA83C20254 for ; Wed, 4 Mar 2015 19:48:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 45BC12034C for ; Wed, 4 Mar 2015 19:48:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755323AbbCDTsW (ORCPT ); Wed, 4 Mar 2015 14:48:22 -0500 Received: from exprod5og120.obsmtp.com ([64.18.0.137]:49449 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1758748AbbCDTsV (ORCPT ); Wed, 4 Mar 2015 14:48:21 -0500 Received: from mail-pd0-f172.google.com ([209.85.192.172]) (using TLSv1) by exprod5ob120.postini.com ([64.18.4.12]) with SMTP ID DSNKVPdhhFoEvDKMmq09OCo9MQ7J9Vd+OsjA@postini.com; Wed, 04 Mar 2015 11:48:21 PST Received: by pdbfp1 with SMTP id fp1so8912027pdb.2 for ; Wed, 04 Mar 2015 11:48:20 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=RJWS9rRZmy1kKH1VyLLODQR7Tz5RBsvZMQZtwHs5tI8=; b=ZH8NAaQrJjoOTM34osr0DNOgl/AUj1UgvZBTEnp3lDiT8yshw2gGbfvt9rrjYbq/5W k7PTP1L7/31vEm9yk+u+baqcjcdHnXIxjn6GHe1bf8Gy+8iAfCvCTZQttFUC6kpQkMlR Vaz8ACoElQJ+u8Dc+L4c0NhCcFNJLVUiU8YZY/OS2tli4QPhdQ/CTbTBZ0OF4XAj1xcr fFBNom9rbj+srQsZQcgXErCD0jtyEFKpN3Kp9AgeKmYeajmJuPFlw+MZiX7wVEV3iavZ 9gSuUxQYGi5s8P/SKeLVjh8UMKF/NJywFR3oBrVjZE/pxGr5TUziW9+3qYC4/a8Uuty1 ACEw== X-Received: by 10.70.64.163 with SMTP id p3mr9640733pds.118.1425498154015; Wed, 04 Mar 2015 11:42:34 -0800 (PST) X-Gm-Message-State: ALoCoQmv5jn3HIrM4oJ3wPymjtVDQslU/Bvqv9WWtRX7YcK1j0VqoePAFC1cvcNQ6x0tptdda2KdCp5bsv+lMjCClSEs/S0+jrLqPy1PNUqPHzBy1sZeQ1oTrdkVVysaZRQPL0xEFIFjsG7PdkjhSAvHqouhwKyAVg== X-Received: by 10.70.64.163 with SMTP id p3mr9640719pds.118.1425498153910; Wed, 04 Mar 2015 11:42:33 -0800 (PST) Received: from dhdang-Precision-WorkStation-T3400.amcc.com (67-207-112-226.static.wiline.com. [67.207.112.226]) by mx.google.com with ESMTPSA id fk1sm4850874pab.16.2015.03.04.11.42.32 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 04 Mar 2015 11:42:33 -0800 (PST) From: Duc Dang To: Bjorn Helgaas , Arnd Bergmann , Grant Likely , Liviu Dudau Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tanmay Inamdar , Loc Ho , Feng Kan , Duc Dang Subject: [PATCH v2 3/4] documentation: dts: Add the device tree binding for APM X-Gene v1 PCIe MSI device tree node. Date: Wed, 4 Mar 2015 11:39:59 -0800 Message-Id: X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: <1678162.2PJ2o1jRen@wuerfel> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The driver for this binding is under 'drivers/pci/host/pci-xgene-msi.c' Signed-off-by: Duc Dang Signed-off-by: Tanmay Inamdar --- .../devicetree/bindings/pci/xgene-pci-msi.txt | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/xgene-pci-msi.txt diff --git a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt new file mode 100644 index 0000000..fdd55d6 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt @@ -0,0 +1,61 @@ +* AppliedMicro X-Gene PCIe MSI interface + +Required properties: + +- compatible: should contain "apm,xgene1-msi" to identify the core. +- msi-controller: indicates that this is X-Gene1 PCIe MSI controller node +- reg: A list of physical base address and length for each set of controller + registers. +- interrupts: A list of interrupt outputs of the controller. + +Each PCIe node needs to have property msi-parent that points to msi controller node + +Examples: + +SoC DTSI: + + msi@79000000 { + compatible = "apm,xgene1-msi"; + msi-controller; + reg = <0x00 0x79000000 0x0 0x900000>; + interrupts = < 0x0 0x10 0x4 + 0x0 0x11 0x4 + 0x0 0x12 0x4 + 0x0 0x13 0x4 + 0x0 0x14 0x4 + 0x0 0x15 0x4 + 0x0 0x16 0x4 + 0x0 0x17 0x4 + 0x0 0x18 0x4 + 0x0 0x19 0x4 + 0x0 0x1a 0x4 + 0x0 0x1b 0x4 + 0x0 0x1c 0x4 + 0x0 0x1d 0x4 + 0x0 0x1e 0x4 + 0x0 0x1f 0x4>; + }; + + pcie0: pcie@1f2b0000 { + status = "disabled"; + device_type = "pci"; + compatible = "apm,xgene-storm-pcie", "apm,xgene-pcie"; + #interrupt-cells = <1>; + #size-cells = <2>; + #address-cells = <3>; + reg = < 0x00 0x1f2b0000 0x0 0x00010000 /* Controller registers */ + 0xe0 0xd0000000 0x0 0x00040000>; /* PCI config space */ + reg-names = "csr", "cfg"; + ranges = <0x01000000 0x00 0x00000000 0xe0 0x10000000 0x00 0x00010000 /* io */ + 0x02000000 0x00 0x80000000 0xe1 0x80000000 0x00 0x80000000>; /* mem */ + dma-ranges = <0x42000000 0x80 0x00000000 0x80 0x00000000 0x00 0x80000000 + 0x42000000 0x00 0x00000000 0x00 0x00000000 0x80 0x00000000>; + interrupt-map-mask = <0x0 0x0 0x0 0x7>; + interrupt-map = <0x0 0x0 0x0 0x1 &gic 0x0 0xc2 0x1 + 0x0 0x0 0x0 0x2 &gic 0x0 0xc3 0x1 + 0x0 0x0 0x0 0x3 &gic 0x0 0xc4 0x1 + 0x0 0x0 0x0 0x4 &gic 0x0 0xc5 0x1>; + dma-coherent; + clocks = <&pcie0clk 0>; + msi-parent= <&msi>; + };