From patchwork Mon Jul 21 21:08:02 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brian Norris X-Patchwork-Id: 4598411 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id ED68C9F295 for ; Mon, 21 Jul 2014 21:14:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 1DA0B20120 for ; Mon, 21 Jul 2014 21:14:10 +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 4093A20109 for ; Mon, 21 Jul 2014 21:14:09 +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 1X9Kri-0005ur-Hs; Mon, 21 Jul 2014 21:11:22 +0000 Received: from mail-pd0-x22c.google.com ([2607:f8b0:400e:c02::22c]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X9KqO-0002tI-0F for linux-arm-kernel@lists.infradead.org; Mon, 21 Jul 2014 21:10:00 +0000 Received: by mail-pd0-f172.google.com with SMTP id ft15so9876094pdb.31 for ; Mon, 21 Jul 2014 14:09:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=TjM/59aRuhhzAu+wAga73Eo1pVOiNCXnHYzRYMGf1+c=; b=RIgskdDu2tqNKT4obpepYEbbHBqQ+kTWVaIWOtYPTjBiXsu0wA/ROi4GIm4r+g0amn GhZvtjGD9cXcf07vtX5PD1HxLc4bzzRFOJDC1M6YGKxWNa3gSA6SdGrjYkAPUv+yHr1J 43uqMI1tVQ36OoE2RLboL+RzUNPqzur/uUWBMRTi6umamjGk/uu0b6Mnoai7zkjWDlQ+ O5FPGAJWKzQ8niI8sOcV0RTgR8nxHLi0E+35Ah1DCqtL5WZP01vx4RxANEXfqzRomCD2 zTLRGETryaUyo8PIM/SXHpYnFnkR6sXgeY+tKPAePs4qwH8zCXJZSXmpiAEsbHU2cCho iwOQ== X-Received: by 10.66.249.71 with SMTP id ys7mr12442963pac.112.1405976978628; Mon, 21 Jul 2014 14:09:38 -0700 (PDT) Received: from ld-irv-0074.broadcom.com (5520-maca-inet1-outside.broadcom.com. [216.31.211.11]) by mx.google.com with ESMTPSA id c17sm20387643pdm.33.2014.07.21.14.09.37 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 21 Jul 2014 14:09:37 -0700 (PDT) From: Brian Norris To: Arnd Bergmann , Olof Johansson Subject: [PATCH v8 07/11] ARM: brcmstb: add misc. DT bindings for brcmstb Date: Mon, 21 Jul 2014 14:08:02 -0700 Message-Id: <1405976886-27807-8-git-send-email-computersforpeace@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1405976886-27807-1-git-send-email-computersforpeace@gmail.com> References: <1405976886-27807-1-git-send-email-computersforpeace@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140721_141000_099012_C750CD0F X-CRM114-Status: GOOD ( 13.40 ) X-Spam-Score: -0.8 (/) Cc: devicetree@vger.kernel.org, Florian Fainelli , Russell King , Christian Daudt , Linux Kernel , Matt Porter , Marc Carino , Gregory Fong , Brian Norris , linux-arm-kernel@lists.infradead.org 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=-1.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=no 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 From: Marc Carino Document the bindings that the Broadcom STB platform needs for proper bootup. Signed-off-by: Marc Carino Acked-by: Florian Fainelli Signed-off-by: Brian Norris --- .../devicetree/bindings/arm/brcm-brcmstb.txt | 95 ++++++++++++++++++++++ 1 file changed, 95 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/brcm-brcmstb.txt diff --git a/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt b/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt new file mode 100644 index 000000000000..3c436cc4f35d --- /dev/null +++ b/Documentation/devicetree/bindings/arm/brcm-brcmstb.txt @@ -0,0 +1,95 @@ +ARM Broadcom STB platforms Device Tree Bindings +----------------------------------------------- +Boards with Broadcom Brahma15 ARM-based BCMxxxx (generally BCM7xxx variants) +SoC shall have the following DT organization: + +Required root node properties: + - compatible: "brcm,bcm", "brcm,brcmstb" + +example: +/ { + #address-cells = <2>; + #size-cells = <2>; + model = "Broadcom STB (bcm7445)"; + compatible = "brcm,bcm7445", "brcm,brcmstb"; + +Further, syscon nodes that map platform-specific registers used for general +system control is required: + + - compatible: "brcm,bcm-sun-top-ctrl", "syscon" + - compatible: "brcm,bcm-hif-cpubiuctrl", "syscon" + - compatible: "brcm,bcm-hif-continuation", "syscon" + +example: + rdb { + #address-cells = <1>; + #size-cells = <1>; + compatible = "simple-bus"; + ranges = <0 0x00 0xf0000000 0x1000000>; + + sun_top_ctrl: syscon@404000 { + compatible = "brcm,bcm7445-sun-top-ctrl", "syscon"; + reg = <0x404000 0x51c>; + }; + + hif_cpubiuctrl: syscon@3e2400 { + compatible = "brcm,bcm7445-hif-cpubiuctrl", "syscon"; + reg = <0x3e2400 0x5b4>; + }; + + hif_continuation: syscon@452000 { + compatible = "brcm,bcm7445-hif-continuation", "syscon"; + reg = <0x452000 0x100>; + }; + }; + +Lastly, nodes that allow for support of SMP initialization and reboot are +required: + +smpboot +------- +Required properties: + + - compatible + The string "brcm,brcmstb-smpboot". + + - syscon-cpu + A phandle / integer array property which lets the BSP know the location + of certain CPU power-on registers. + + The layout of the property is as follows: + o a phandle to the "hif_cpubiuctrl" syscon node + o offset to the base CPU power zone register + o offset to the base CPU reset register + + - syscon-cont + A phandle pointing to the syscon node which describes the CPU boot + continuation registers. + o a phandle to the "hif_continuation" syscon node + +example: + smpboot { + compatible = "brcm,brcmstb-smpboot"; + syscon-cpu = <&hif_cpubiuctrl 0x88 0x178>; + syscon-cont = <&hif_continuation>; + }; + +reboot +------- +Required properties + + - compatible + The string property "brcm,brcmstb-reboot". + + - syscon + A phandle / integer array that points to the syscon node which describes + the general system reset registers. + o a phandle to "sun_top_ctrl" + o offset to the "reset source enable" register + o offset to the "software master reset" register + +example: + reboot { + compatible = "brcm,brcmstb-reboot"; + syscon = <&sun_top_ctrl 0x304 0x308>; + };