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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 587CBC433FE for ; Mon, 17 Jan 2022 16:18:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241011AbiAQQSO (ORCPT ); Mon, 17 Jan 2022 11:18:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35334 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240997AbiAQQSM (ORCPT ); Mon, 17 Jan 2022 11:18:12 -0500 Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44C8DC06161C for ; Mon, 17 Jan 2022 08:18:12 -0800 (PST) Received: by mail-ed1-x534.google.com with SMTP id 15so34546408edx.9 for ; Mon, 17 Jan 2022 08:18:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=4y5Hl3U1xXQXZw23h6/DO7pv/6iLmoZwNHNPhFYyIt8=; b=H7Kyile8bVbUB1uHXBaUIRyKZ8c7SBGxw1S9Bq1l7v1qCdkBs3OkvwHPBHe1d9tFni P7ZpCPGCpTFPJ3FugYLnQ0uNeH/2X9/xwte20CTIYlILxxuw1ZGakLiHVMgBvDaW/MDa hLACj+lIfyO/bcvaSxpTA2shvjDfo1byUl4m8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=4y5Hl3U1xXQXZw23h6/DO7pv/6iLmoZwNHNPhFYyIt8=; b=u64Mwtg50M67J+dUYMOsP8WZWUMzA+2Vr6JQotTi86dVpv1QgmYU5dZcN13mDXl7U/ FQctac9wnrvyjUTIXjbtRImlomaQfq3fhiDWUiB5XE7u/paDBFbswIF+kLyQj8f3q07G A7m2LppjQ08nsbbmMR4VSReIK9I0Mz6BJCU9eUCpvgp/MI+gl6rhIBIbNCHDQg3ThgIN f6pD/q0/5HMNpM6JAPAoCkcWB/FGuu/ooynkh1x6T2o6may18kObB7JXP4/E8zqVGRmH CAubyBLATuF5FYWbw/zPkC1r0LH/1afyHTFg/O2XjZGaz5bbEp5ZbH34bjzrBtYdl+0c Yasw== X-Gm-Message-State: AOAM530zndnvC6y0w5vMaZkLeRaXxKgPkZEhzyrm8SLO1godjblO4hc3 yH/fG6/bRNxP5POqP6hSdARFsjMgsaMVJmXo X-Google-Smtp-Source: ABdhPJzoKLf0i17Ak3VzqNyVv9Vm8qt47iUJmDiS73Di84vuVY4d6AuUwx7pgXcp35lk5Ixyzj/Ljw== X-Received: by 2002:a17:906:1145:: with SMTP id i5mr16996384eja.317.1642436290556; Mon, 17 Jan 2022 08:18:10 -0800 (PST) Received: from dario-ThinkPad-T14s-Gen-2i.homenet.telecomitalia.it (host-82-52-8-210.retail.telecomitalia.it. [82.52.8.210]) by smtp.gmail.com with ESMTPSA id s4sm4147652ejm.146.2022.01.17.08.18.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Jan 2022 08:18:10 -0800 (PST) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: Michael Trimarchi , Dario Binacchi , Boris Brezillon , Fabio Estevam , Han Xu , Miquel Raynal , NXP Linux Team , Pengutronix Kernel Team , Richard Weinberger , Rob Herring , Sascha Hauer , Shawn Guo , Stephen Boyd , Vignesh Raghavendra , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mtd@lists.infradead.org Subject: [RFC PATCH v3 0/4] Fix and improve gpmi nand on mx28 Date: Mon, 17 Jan 2022 17:17:51 +0100 Message-Id: <20220117161755.1863579-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Starting from [1], the series fixes the timings setting of the gpmi controller for the mx28 architecture, also adding support for fast edo mode timings. The whole series has been heavily tested with the mtd kernel test modules, and with repeated write cycles on nand. [1] https://lore.kernel.org/r/20210702065350.209646-5-ebiggers@kernel.org Changes in v3: - Remove the "mtd: rawnand: gpmi: use a table to get EDO mode setup" patch. - Simplify the validation logic (suggested by Sascha Hauer ). Changes in v2: - Reparent by device tree instead of code (drivers/clk/mxs/clk-imx28.c). Suggested by Stephen Boyd. - Improve the commit description. - give examples of frequencies on my setup. - Fix commit description. - Add an example to the commit description to better understand the problem solved by the patch. - Split the patch. - Improve the commit message. - Move the patch to the end of the series. Dario Binacchi (4): ARM: dts: imx28: reparent gpmi clock to ref_gpmi mtd: rawnand: gpmi: fix controller timings setting mtd: rawnand: gpmi: validate controller clock rate mtd: rawnand: gpmi: support fast edo timings for mx28 arch/arm/boot/dts/imx28.dtsi | 2 ++ drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c | 27 ++++++++++++++++++---- 2 files changed, 24 insertions(+), 5 deletions(-) -- 2.32.0