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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED autolearn=ham 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 EC420C43142 for ; Mon, 25 Jun 2018 14:50:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 90B0F25B4A for ; Mon, 25 Jun 2018 14:50:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="NaeGppIr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 90B0F25B4A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934546AbeFYOuX (ORCPT ); Mon, 25 Jun 2018 10:50:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:55856 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934378AbeFYOuV (ORCPT ); Mon, 25 Jun 2018 10:50:21 -0400 Received: from [192.168.1.22] (cpe-70-114-128-244.austin.res.rr.com [70.114.128.244]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9ED2225BC8; Mon, 25 Jun 2018 14:50:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1529938220; bh=BpVZ0xk5BWVilsNIFu1oq7lTO9ZFS8sI+S7hAFZO+3g=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=NaeGppIrxvrwPtrMs/ayRGlEBa2kFHNOeZ/DrzTwwmVmhB6cPuI/+lO41jkeDvisI nbh7oV2jKtLdfqpRmOkJJBMBE/vJ9KKnB+3RZQob7ms9DMpnoMiZBzxIh9Dpnv48JT YOk6mgSz0kmRWDh3Uy+z5HeiVT5VXGcd1S7IN6lk= Subject: Re: [PATCH] arm: dts: socfpga: denali needs nand_x_clk too To: Richard Weinberger , Masahiro Yamada Cc: DTML , Linux Kernel Mailing List , linux-mtd , Rob Herring , Mark Rutland , =?UTF-8?Q?Marek_Va=c5=a1ut?= , Brian Norris , David Woodhouse , Miquel Raynal , Boris Brezillon References: <20180619120719.26921-1-richard@nod.at> <3320422.EJ8D6C0VHL@blindfold> From: Dinh Nguyen Openpgp: preference=signencrypt Autocrypt: addr=dinguyen@kernel.org; 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Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <3320422.EJ8D6C0VHL@blindfold> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/22/2018 10:58 AM, Richard Weinberger wrote: > Masahiro, > > Am Freitag, 22. Juni 2018, 16:37:21 CEST schrieb Masahiro Yamada: >> Hi Richard, >> >> >> 2018-06-19 21:07 GMT+09:00 Richard Weinberger : >>> The denali NAND flash controller needs at least two clocks to operate, >>> nand_clk and nand_x_clk. >>> Since 1bb88666775e ("mtd: nand: denali: handle timing parameters by >>> setup_data_interface()") nand_x_clk is used to derive timing settings. >>> >>> Signed-off-by: Richard Weinberger >>> --- >>> Strictly speaking denali needs a ecc_clk too, but AFAIK such a clock >>> is not present on this SoC. >>> But my SoCFPGA knowledge is very limited. >>> >>> Thanks, >>> //richard >>> --- >>> arch/arm/boot/dts/socfpga.dtsi | 3 ++- >>> 1 file changed, 2 insertions(+), 1 deletion(-) >>> >>> diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi >>> index 486d4e7433ed..562f7b375bbd 100644 >>> --- a/arch/arm/boot/dts/socfpga.dtsi >>> +++ b/arch/arm/boot/dts/socfpga.dtsi >>> @@ -754,7 +754,8 @@ >>> reg-names = "nand_data", "denali_reg"; >>> interrupts = <0x0 0x90 0x4>; >>> dma-mask = <0xffffffff>; >>> - clocks = <&nand_clk>; >>> + clocks = <&nand_clk>, <&nand_x_clk>; >>> + clock-names = "nand", "nand_x"; >> >> >> IMHO, this should be >> >> clocks = <&nand_clk>, <&nand_x_clk>, <&nand_x_clk>; >> clock-names = "nand", "nand_x", "ecc"; No, it should be just the nand_x and ecc. There's already a patch to use the nand_x_clk and not the nand_clk. https://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux.git/commit/?h=socfpga_for_next_v4.19_fixes_v1&id=1709ab58eb79b19bceb2287d111bf1bd2df1cf6d Dinh