From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92205C43381 for ; Tue, 19 Feb 2019 07:23:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5FE5B20578 for ; Tue, 19 Feb 2019 07:23:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="ycwVFAP/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727077AbfBSHX4 (ORCPT ); Tue, 19 Feb 2019 02:23:56 -0500 Received: from lelv0142.ext.ti.com ([198.47.23.249]:42704 "EHLO lelv0142.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725763AbfBSHXz (ORCPT ); Tue, 19 Feb 2019 02:23:55 -0500 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id x1J7Ndtg040491; Tue, 19 Feb 2019 01:23:39 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1550561019; bh=RJ/ssE7i7ZV21iek2H9iOK7v6JGeQReTmBrQkJA9y4I=; h=Subject:To:CC:References:From:Date:In-Reply-To; b=ycwVFAP/JYASxmbD/IrwNuQpQz+lJLsMROYj6egak0TkfWjoM1gzMLSqVtlIELNSj MG7EJ1SZkqXwBcOfKHIm4XzqNy5a+KCA8puX76zwE5ecKSiFtXuR6Ehes+2mhCZlvT YL7QVuIsxpwRBEHtgFQBxMZUVj5oDl5oXzMm7OdU= Received: from DFLE109.ent.ti.com (dfle109.ent.ti.com [10.64.6.30]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id x1J7NdvS055001 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 19 Feb 2019 01:23:39 -0600 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE109.ent.ti.com (10.64.6.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1591.10; Tue, 19 Feb 2019 01:23:38 -0600 Received: from dflp32.itg.ti.com (10.64.6.15) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.1591.10 via Frontend Transport; Tue, 19 Feb 2019 01:23:39 -0600 Received: from [172.24.190.89] (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp32.itg.ti.com (8.14.3/8.13.8) with ESMTP id x1J7NXaG024750; Tue, 19 Feb 2019 01:23:34 -0600 Subject: Re: [RFC PATCH 0/5] MTD: Add Initial Hyperbus support To: David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Rob Herring CC: Greg Kroah-Hartman , Arnd Bergmann , , , , , , References: <20190219063607.29949-1-vigneshr@ti.com> From: Vignesh R Message-ID: Date: Tue, 19 Feb 2019 12:54:34 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0 MIME-Version: 1.0 In-Reply-To: <20190219063607.29949-1-vigneshr@ti.com> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 19/02/19 12:06 PM, Vignesh R wrote: [...] > > Tested on modified TI AM654 EVM with Cypress Hyperflash S26KS512 by > creating a UBIFS partition and writing and reading files to it. > Stress tested by writing/reading 16MB flash repeatedly at different > offsets using dd commmand. > Here is the enumeration log from dmesg: https://pastebin.ubuntu.com/p/Vd5jYQT4FH/ > HyperBus specification can be found at[1] > HyperFlash datasheet can be found at[2] > TI's HBMC controller details at[3] > > [1] https://www.cypress.com/file/213356/download > [2] https://www.cypress.com/file/213346/download > [3] http://www.ti.com/lit/ug/spruid7b/spruid7b.pdf > Table 12-5741. HyperFlash Access Sequence > > Vignesh R (5): > mtd: cfi_cmdset_0002: Add support for polling status register > dt-bindings: mtd: Add binding documentation for Hyperbus memory > devices > mtd: Add support for Hyperbus memory devices > dt-bindings: mtd: Add bindings for TI's AM654 Hyperbus memory > controller > mtd: hyperbus: Add driver for TI's Hyperbus memory controller > > .../bindings/mtd/cypress,hyperbus.txt | 6 + > .../devicetree/bindings/mtd/ti,am654-hbmc.txt | 27 +++ > MAINTAINERS | 8 + > drivers/mtd/Kconfig | 2 + > drivers/mtd/Makefile | 1 + > drivers/mtd/chips/cfi_cmdset_0002.c | 50 ++++++ > drivers/mtd/hyperbus/Kconfig | 23 +++ > drivers/mtd/hyperbus/Makefile | 4 + > drivers/mtd/hyperbus/core.c | 167 ++++++++++++++++++ > drivers/mtd/hyperbus/hbmc_am654.c | 105 +++++++++++ > include/linux/mtd/cfi.h | 5 + > include/linux/mtd/hyperbus.h | 73 ++++++++ > 12 files changed, 471 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mtd/cypress,hyperbus.txt > create mode 100644 Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt > create mode 100644 drivers/mtd/hyperbus/Kconfig > create mode 100644 drivers/mtd/hyperbus/Makefile > create mode 100644 drivers/mtd/hyperbus/core.c > create mode 100644 drivers/mtd/hyperbus/hbmc_am654.c > create mode 100644 include/linux/mtd/hyperbus.h > -- Regards Vignesh