From patchwork Mon Nov 17 10:36:11 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ankit Jindal X-Patchwork-Id: 411496 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 440C414012F for ; Mon, 17 Nov 2014 21:39:25 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752358AbaKQKjE (ORCPT ); Mon, 17 Nov 2014 05:39:04 -0500 Received: from mail-pd0-f174.google.com ([209.85.192.174]:39250 "EHLO mail-pd0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752706AbaKQKic (ORCPT ); Mon, 17 Nov 2014 05:38:32 -0500 Received: by mail-pd0-f174.google.com with SMTP id w10so2163910pde.19 for ; Mon, 17 Nov 2014 02:38:32 -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; bh=Ny1EGlYbq6eIgmReyJhy6hG43c3aR/PWAokZ+00Q9TA=; b=ENRfSmq/I8iRwc8bnDymxhN47w/6G1R0mxVU+mbFN8xOG5Gl2+Ci2Sn1ZerMT0SQ22 HakA613zpDSmvNayhIpJroI+I5SIz5VZl/9NWqd7pgRi9ra/ZwAS+cX7NZahs/1WMcQc auhOAbL5gx5uJP9hRn5xMPyxWlBTtwL5PJStGZTQnGFOxafHkgW8qx5BoKPaLEKNQwmw CzoDwkWMmueyVHRh3/95G588bMQpsZBlqpg9X/2aXvV2U4ieI0z9HUQ6WGqHgv6ZfAeK F3bEy/e5dIt5rc54K3TlooidYjGpTuJxbpb/S3jUxeMVF6LYHgQP5twD5X1hhzKx6M/x I+ZQ== X-Gm-Message-State: ALoCoQkEObC5y3k5TtJfG7DTS0COeTPY2LsxfdRAfBRn1rhuXLdN8dLCYw9V7/fyq3qKvegIDFAd X-Received: by 10.68.90.225 with SMTP id bz1mr2060259pbb.153.1416220712181; Mon, 17 Nov 2014 02:38:32 -0800 (PST) Received: from pnqlab023.amcc.com ([182.73.239.130]) by mx.google.com with ESMTPSA id od9sm8945685pbb.96.2014.11.17.02.38.27 for (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 17 Nov 2014 02:38:31 -0800 (PST) From: Ankit Jindal To: linux-kernel@vger.kernel.org Cc: "Hans J. Koch" , Greg Kroah-Hartman , patches@apm.com, linux-arm-kernel@lists.infradead.org, Rob Herring , Tushar Jagad , Russell King - ARM Linux , devicetree@vger.kernel.org, Guenter Roeck , Varka Bhadram , Kumar Gala , Anup Patel , =?UTF-8?q?Andreas=20F=C3=A4rber?= , Ankit Jindal Subject: [PATCH v5 5/6] Documentation: dt-bindings: Add binding info for X-Gene QMTM UIO driver Date: Mon, 17 Nov 2014 16:06:11 +0530 Message-Id: <1416220572-13381-6-git-send-email-ankit.jindal@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1416220572-13381-1-git-send-email-ankit.jindal@linaro.org> References: <1416220572-13381-1-git-send-email-ankit.jindal@linaro.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This patch adds device tree binding documentation for X-Gene QMTM UIO driver. Signed-off-by: Ankit Jindal Signed-off-by: Tushar Jagad Reviewed-by: Andreas Färber --- .../devicetree/bindings/uio/uio_xgene_qmtm.txt | 50 ++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt diff --git a/Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt b/Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt new file mode 100644 index 0000000..7afe78c --- /dev/null +++ b/Documentation/devicetree/bindings/uio/uio_xgene_qmtm.txt @@ -0,0 +1,50 @@ +APM X-Gene QMTM nodes + +The Applied Micro X-Gene SOC has on-chip QMTM (Queue manager +and Traffic manager). It is a device for managing hardware queues. +It also implements QoS among hardware queues hence term "traffic" +manager is present in its name. + +Required properties: +- compatible: Should be "apm,xgene-qmtm" +- reg: Address and length of the register set for the device. It contains the + information of registers in the same order as described by reg-names. +- reg-names: Should contain the register set names + - "csr": QMTM control and status register address space. + - "fabric": QMTM memory mapped access to queue states. +- qpool-memory: Points to the phandle of the node defining memory location for + creating QMTM queues. This must point to the reserved-memory node + (as-per reserved memory bindings). It is expected that size and + location of qpool memory will be configurable via bootloader. +- clocks: Reference to the clock entry. +- num-queues: Number of queues under this QMTM device. +- devid: QMTM identification number for the system having multiple QMTM devices. + This is used to form a unique id (a tuple of queue number and + device id) for the queues belonging to this device. + +Example: + qmtm1_uio_qpool: qmtm1_uio_qpool { + reg = <0x0 0x0 0x0 0x0>; + }; + + qmtm1clk: qmtmclk@1f20c000 { + compatible = "apm,xgene-device-clock"; + clock-output-names = "qmtm1clk"; + }; + + qmtm1_uio: qmtm_uio@1f200000 { + compatible = "apm,xgene-qmtm"; + status = "disabled"; + reg = <0x0 0x1f200000 0x0 0x10000>, + <0x0 0x1b000000 0x0 0x400000>; + reg-names = "csr", "fabric"; + qpool-memory = <&qmtm1_uio_qpool>; + clocks = <&qmtm1clk 0>; + num-queues = <0x400>; + devid = <1>; + }; + + /* Board-specific peripheral configurations */ + &qmtm1_uio { + status = "okay"; + };