From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753424AbbBXQta (ORCPT ); Tue, 24 Feb 2015 11:49:30 -0500 Received: from mail.linn.co.uk ([195.59.102.251]:54683 "EHLO mail.linn.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752612AbbBXQt1 (ORCPT ); Tue, 24 Feb 2015 11:49:27 -0500 From: Stathis Voukelatos To: , , CC: Stathis Voukelatos Subject: [PATCH net-next v4 1/3] Linn Ethernet packet sniffer: device tree binding and vendor prefix Date: Tue, 24 Feb 2015 16:48:09 +0000 Message-ID: <38762690771e8cf3ab721b37b6af20c72e45be32.1424796018.git.stathis.voukelatos@linn.co.uk> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.2.10.132] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Stathis Voukelatos --- .../bindings/net/linn-ether-packet-sniffer.txt | 39 ++++++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 2 files changed, 40 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/linn-ether-packet-sniffer.txt diff --git a/Documentation/devicetree/bindings/net/linn-ether-packet-sniffer.txt b/Documentation/devicetree/bindings/net/linn-ether-packet-sniffer.txt new file mode 100644 index 0000000..66bfc48 --- /dev/null +++ b/Documentation/devicetree/bindings/net/linn-ether-packet-sniffer.txt @@ -0,0 +1,39 @@ +* Linn Products Ethernet Packet Sniffer +The module allows Ethernet packets to be parsed, matched against +a user-defined pattern and timestamped. It sits between a 100M +Ethernet MAC and PHY and is completely passive with respect to +Ethernet frames. +Matched packet bytes and timestamp values are returned through a +FIFO. Timestamps are provided to the module through an externally +generated Gray-encoded counter. + +Required properties: +- compatible : must be "linn,eth-packet-sniffer" +- reg : a list of physical address and size pairs corresponding to + each entry in 'reg-names' +- reg-names : must contain: + "regs" : control registers + "tx-ram" : TX command string memory + "rx-ram" : RX command string memory +- interrupts : sniffer interrupt specifier +- clocks : list of clocks corresponding to each entry in 'clock-names' +- clock-names : must contain: + "sys" : system clock for the peripheral + "tstamp" : timestamp counter clock +- fifo-block-words : number of words in one data FIFO entry +- tstamp-bits : width in bits of the timestamp counter + +Example: + +sniffer@1814a000 { + compatible = "linn,eth-sniffer"; + reg = <0x1814a000 0x100>, <0x1814a400 0x400>, + <0x1814a800 0x400>; + reg-names = "regs", "tx-ram", "rx-ram"; + interrupts = ; + clocks = <&cr_periph SYS_CLK_ENET>, + <&clk_core CLK_AUDIO>; + clock-names = "sys", "tstamp"; + fifo-block-words = <4>; + tstamp-bits = <30>; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 389ca13..f685707 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -102,6 +102,7 @@ lacie LaCie lantiq Lantiq Semiconductor lenovo Lenovo Group Ltd. lg LG Corporation +linn Linn Products Ltd. linux Linux-specific binding lsi LSI Corp. (LSI Logic) lltc Linear Technology Corporation -- 1.9.1