From patchwork Tue Nov 17 23:13:20 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aaro Koskinen X-Patchwork-Id: 545807 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 11DE5141448 for ; Wed, 18 Nov 2015 10:22:47 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932111AbbKQXWp (ORCPT ); Tue, 17 Nov 2015 18:22:45 -0500 Received: from emh02.mail.saunalahti.fi ([62.142.5.108]:57548 "EHLO emh02.mail.saunalahti.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932078AbbKQXWp (ORCPT ); Tue, 17 Nov 2015 18:22:45 -0500 X-Greylist: delayed 546 seconds by postgrey-1.27 at vger.kernel.org; Tue, 17 Nov 2015 18:22:44 EST Received: from localhost.localdomain (85-76-66-151-nat.elisa-mobile.fi [85.76.66.151]) by emh02.mail.saunalahti.fi (Postfix) with ESMTP id 28F6D23401A; Wed, 18 Nov 2015 01:13:36 +0200 (EET) From: Aaro Koskinen To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , devicetree@vger.kernel.org Cc: Aaro Koskinen Subject: [PATCH v2] Documentation/devicetree: document OCTEON USB bindings Date: Wed, 18 Nov 2015 01:13:20 +0200 Message-Id: <1447802000-1637-1-git-send-email-aaro.koskinen@iki.fi> X-Mailer: git-send-email 2.4.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document device-tree bindings for the USB controller on older OCTEON SOCs (OCTEON, OCTEON+). Signed-off-by: Aaro Koskinen Acked-by: Rob Herring --- v2: Deprecate "refclk-frequency" and "refclk-type". v1: See http://www.spinics.net/lists/devicetree/msg78051.html .../devicetree/bindings/usb/octeon-usb.txt | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/octeon-usb.txt diff --git a/Documentation/devicetree/bindings/usb/octeon-usb.txt b/Documentation/devicetree/bindings/usb/octeon-usb.txt new file mode 100644 index 0000000..205c8d2 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/octeon-usb.txt @@ -0,0 +1,62 @@ +OCTEON/OCTEON+ USB BLOCK + +1) Main node + + Required properties: + + - compatible: must be "cavium,octeon-5750-usbn" + + - reg: specifies the physical base address of the USBN block and + the length of the memory mapped region. + + - #address-cells: specifies the number of cells needed to encode an + address. The value must be 2. + + - #size-cells: specifies the number of cells used to represent the size + of an address. The value must be 2. + + - ranges: specifies the translation between child address space and parent + address space. + + - clock-frequency: speed of the USB reference clock. Allowed values are + 12000000, 24000000 or 48000000. + + - cavium,refclk-type: type of the USB reference clock. Allowed values are + "crystal" or "external". + + - refclk-frequency: deprecated, use "clock-frequency". + + - refclk-type: deprecated, use "cavium,refclk-type". + +2) Child node + + The main node must have one child node which describes the built-in + USB controller. + + Required properties: + + - compatible: must be "cavium,octeon-5750-usbc" + + - reg: specifies the physical base address of the USBC block and + the length of the memory mapped region. + + - interrupts: specifies the interrupt number for the USB controller. + +3) Example: + + usbn: usbn@1180068000000 { + compatible = "cavium,octeon-5750-usbn"; + reg = <0x11800 0x68000000 0x0 0x1000>; + ranges; /* Direct mapping */ + #address-cells = <2>; + #size-cells = <2>; + clock-frequency = <12000000>; + cavium,refclk-type = "crystal"; + + usbc@16f0010000000 { + compatible = "cavium,octeon-5750-usbc"; + reg = <0x16f00 0x10000000 0x0 0x80000>; + interrupts = <0 56>; + }; + }; +