From patchwork Fri May 22 11:13:10 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liviu Dudau X-Patchwork-Id: 6463741 Return-Path: X-Original-To: patchwork-linux-arm@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 9EA7AC0020 for ; Fri, 22 May 2015 11:17:04 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C643F203A5 for ; Fri, 22 May 2015 11:17:03 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EE0D62039C for ; Fri, 22 May 2015 11:17:02 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Yvkud-0004nO-59; Fri, 22 May 2015 11:14:47 +0000 Received: from fw-tnat.cambridge.arm.com ([217.140.96.140] helo=cam-smtp0.cambridge.arm.com) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Yvktd-0004O9-56 for linux-arm-kernel@lists.infradead.org; Fri, 22 May 2015 11:13:47 +0000 Received: from e106497-lin.cambridge.arm.com (e106497-lin.cambridge.arm.com [10.1.197.168]) by cam-smtp0.cambridge.arm.com (8.13.8/8.13.8) with ESMTP id t4MBDAeP003662; Fri, 22 May 2015 12:13:15 +0100 From: Liviu Dudau To: Arnd Bergmann , Olof Johansson , Rob Herring , "Jon Medhurst (Tixy)" , Mark Rutland , Ian Campbell , Marc Zyngier , Catalin Marinas , Will Deacon , Sudeep Holla , devicetree , LAKML , LKML Subject: [PATCH v3 6/6] Documentation: bindings: Add DT bindings for ARM Juno boards. Date: Fri, 22 May 2015 12:13:10 +0100 Message-Id: <1432293190-13012-7-git-send-email-Liviu.Dudau@arm.com> X-Mailer: git-send-email 2.4.0 In-Reply-To: <1432293190-13012-1-git-send-email-Liviu.Dudau@arm.com> References: <1432293190-13012-1-git-send-email-Liviu.Dudau@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150522_041345_551992_374AD0C0 X-CRM114-Status: GOOD ( 10.37 ) X-Spam-Score: -2.3 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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 List the required properties and nodes used to describe the ARM Juno boards. Signed-off-by: Liviu Dudau --- Documentation/devicetree/bindings/arm/arm-boards | 66 ++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards index b78564b..1a70997 100644 --- a/Documentation/devicetree/bindings/arm/arm-boards +++ b/Documentation/devicetree/bindings/arm/arm-boards @@ -157,3 +157,69 @@ Example: }; }; + +ARM Versatile Express Boards +----------------------------- +For details on the device tree bindings for ARM Versatile Express boards +please consult the vexpress.txt file in the same directory as this file. + +ARM Juno Boards +---------------- +The Juno boards are targeting development for AArch64 systems. The first +iteration, Juno r0, is a vehicle for evaluating big.LITTLE on AArch64, +with the second iteration, Juno r1, mainly aimed at development of PCIe +based systems. Juno r1 also has support for AXI masters placed on the TLX +connectors to join the coherency domain. + +Juno boards are described in a similar way to ARM Versatile Express boards, +with the motherboard part of the hardware being described in a separate file +to highlight the fact that is part of the support infrastructure for the SoC. +Juno device tree bindings also share the Versatile Express bindings as +described under the RS1 memory mapping. + +Required properties (in root node): + compatible = "arm,juno"; /* For Juno r0 board */ + compatible = "arm,juno-r1"; /* For Juno r1 board */ + +Required nodes: +The description for the board must include: + - a "psci" node describing the boot method used for the secondary CPUs. + A detailed description of the bindings used for "psci" nodes is present + in the psci.txt file. + - a "cpus" node describing the available cores and their associated + "enable-method"s. For more details see cpus.txt file. + +Example: + +/dts-v1/; +/ { + model = "ARM Juno development board (r0)"; + compatible = "arm,juno", "arm,vexpress"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + cpus { + #address-cells = <2>; + #size-cells = <0>; + + A57_0: cpu@0 { + compatible = "arm,cortex-a57","arm,armv8"; + reg = <0x0 0x0>; + device_type = "cpu"; + enable-method = "psci"; + }; + + ..... + + A53_0: cpu@100 { + compatible = "arm,cortex-a53","arm,armv8"; + reg = <0x0 0x100>; + device_type = "cpu"; + enable-method = "psci"; + }; + + ..... + }; + +};