From patchwork Fri Mar 6 02:58:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Hartley X-Patchwork-Id: 5949721 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 8B5819F373 for ; Fri, 6 Mar 2015 02:59:08 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B54AA20381 for ; Fri, 6 Mar 2015 02:59:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3F9C2037E for ; Fri, 6 Mar 2015 02:59:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751864AbbCFC7G (ORCPT ); Thu, 5 Mar 2015 21:59:06 -0500 Received: from mailapp01.imgtec.com ([195.59.15.196]:24084 "EHLO mailapp01.imgtec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750926AbbCFC7E (ORCPT ); Thu, 5 Mar 2015 21:59:04 -0500 Received: from KLMAIL01.kl.imgtec.org (unknown [192.168.5.35]) by Websense Email Security Gateway with ESMTPS id 3BBDC4272C778; Fri, 6 Mar 2015 02:59:02 +0000 (GMT) Received: from hhmail02.hh.imgtec.org (10.100.10.20) by KLMAIL01.kl.imgtec.org (192.168.5.35) with Microsoft SMTP Server (TLS) id 14.3.195.1; Fri, 6 Mar 2015 02:59:03 +0000 Received: from iw-build-1.kl.imgtec.org (192.168.167.60) by hhmail02.hh.imgtec.org (10.100.10.20) with Microsoft SMTP Server (TLS) id 14.3.224.2; Fri, 6 Mar 2015 02:59:02 +0000 From: James Hartley To: , , , , , , CC: , Subject: [PATCH V3 2/2] Documentation: crypto: Add DT binding info for the img hw hash accelerator Date: Fri, 6 Mar 2015 02:58:27 +0000 Message-ID: <1425610707-9869-3-git-send-email-james.hartley@imgtec.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1425610707-9869-1-git-send-email-james.hartley@imgtec.com> References: <1425610707-9869-1-git-send-email-james.hartley@imgtec.com> MIME-Version: 1.0 X-Originating-IP: [192.168.167.60] Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 This adds the binding documentation for the Imagination Technologies hash accelerator that provides hardware acceleration for SHA1/SHA224/SHA256/MD5 hashes. This hardware will be present in the upcoming pistachio SoC. Signed-off-by: James Hartley --- .../devicetree/bindings/crypto/img-hash.txt | 27 ++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/crypto/img-hash.txt diff --git a/Documentation/devicetree/bindings/crypto/img-hash.txt b/Documentation/devicetree/bindings/crypto/img-hash.txt new file mode 100644 index 0000000..7adc519 --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/img-hash.txt @@ -0,0 +1,27 @@ +Imagination Technologies hardware hash accelerator + +The hash accelerator provides hardware hashing acceleration for +SHA1, SHA224, SHA256 and MD5 hashes + +Required properties: + +- compatible : "img,hash-accelerator" +- reg : Offset and length of the register set for the module, and the DMA port +- interrupts : The designated IRQ line for the hashing module. +- dmas : DMA specifier as per Documentation/devicetree/bindings/dma/dma.txt +- dma-names : Should be "tx" +- clocks : Clock specifiers +- clock-names : "hash_clk" Used to clock data through the accelerator + "hash_reg_clk" Used to clock the hash block registers + +Example: + + hash: hash@18149600 { + compatible = "img,hash-accelerator"; + reg = <0x18149600 0x100, 0x18101100 0x4>; + interrupts = ; + dmas = <&dma 8 0xffffffff>; + dma-names = "tx"; + clocks = <&cr_periph SYS_CLK_HASH>, <&clk_periph PERIPH_CLK_ROM>; + clock-names = "hash_clk, hash_reg_clk"; + };