From patchwork Thu Dec 23 00:22:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 12697649 X-Patchwork-Delegate: johannes@sipsolutions.net 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 438BEC433EF for ; Thu, 23 Dec 2021 00:23:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345585AbhLWAW6 (ORCPT ); Wed, 22 Dec 2021 19:22:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55252 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345544AbhLWAWq (ORCPT ); Wed, 22 Dec 2021 19:22:46 -0500 Received: from mail-pf1-x42a.google.com (mail-pf1-x42a.google.com [IPv6:2607:f8b0:4864:20::42a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1B654C061756; Wed, 22 Dec 2021 16:22:46 -0800 (PST) Received: by mail-pf1-x42a.google.com with SMTP id t123so3693659pfc.13; Wed, 22 Dec 2021 16:22:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yy0dKp0QqTKRDDm+DzMuRMtHniPa8Xch60bze9ubGZk=; b=oiAcd/kTGkJc+314HWZKIChHC7+TT85eKuknVt2Qrl8fgIWwHb4HZLCou6kEMJC6dG kCTzfc6Kr6EpxJUfSYWl+8oE5OK2D8o+Nm0h7ql13+5TALigNZZeRApbq6regGDtSBBL YaszKtin8mMpaoJs9XguPE/UvrytJjv8GgNjG9pBw4Jmx+pzb4VTjgG+Y5dRnd5HYq0c fGXZPnXlyu3Wvifus+DHtjdqcGdKRPoWQeaChpnd6vrzgUjzwnnXkQpk3RubZWUdFXWn PwsLixClBkBVFpKtFCUFvDm4y249kx/F933+WTZWnCerksgh8P81xdJLIajz8hIJhlno fI1w== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=yy0dKp0QqTKRDDm+DzMuRMtHniPa8Xch60bze9ubGZk=; b=4ZD+EhFl21h/AoyWKc5XuRN/AdWFaF7F9m5BwnzHIrmkT+0rSe/WlLiez4LCLT8yz0 yiQPhPeqD6iMPPyIVZ0dpZpDv4auIyj4f97afdSdD1L2sOkqCZ+QzXbo+HTF+1kKVGif vFWJknRXPVCQol8FQl5LVJT9O+ctJm4241/5s9C2hu3x3KX58zhDKS2nxHvMGzIvdyts xwYA1cP97HTT41HBhNoq6pYvaAkQSC7Pbc2aj93yZzxdzfqSYZMiq3euZjqgOi746AOj cdvq9aWLiFdPg7rH+hY53vIAz9Tot9Z5NnEsUhfin0BQ6ssG/PPnvBOD/je9GIGigEYa jdIA== X-Gm-Message-State: AOAM533ywqmYP1jQwX+v9V40FN4Fl3Wd0HOJVzBiE8ZL540pZNroadei VF9MAL27GrIvCTmWH0fPllk= X-Google-Smtp-Source: ABdhPJyEsAVWK4JWRbMSF91GaDuMQ+6a9Y/KzuHDIAlj+nme3qw1QD74G5FuOcQ6YCrjDXd27UQEEw== X-Received: by 2002:a05:6a00:18a9:b0:4ba:d14d:88 with SMTP id x41-20020a056a0018a900b004bad14d0088mr158299pfh.59.1640218965581; Wed, 22 Dec 2021 16:22:45 -0800 (PST) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id e24sm6720703pjt.45.2021.12.22.16.22.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Dec 2021 16:22:45 -0800 (PST) From: Florian Fainelli To: linux-mtd@lists.infradead.org Cc: Florian Fainelli , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Brian Norris , Kamal Dasu , Arnd Bergmann , Cai Huoqing , Colin Ian King , linux-kernel@vger.kernel.org (open list), linux-wireless@vger.kernel.org (open list:BROADCOM SPECIFIC AMBA DRIVER (BCMA)), bcm-kernel-feedback-list@broadcom.com (open list:BROADCOM STB NAND FLASH DRIVER) Subject: [PATCH 8/9] mtd: rawnand: brcmnand: BCMA controller uses command shift of 0 Date: Wed, 22 Dec 2021 16:22:24 -0800 Message-Id: <20211223002225.3738385-9-f.fainelli@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211223002225.3738385-1-f.fainelli@gmail.com> References: <20211223002225.3738385-1-f.fainelli@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org For some odd and unexplained reason the BCMA NAND controller, albeit revision 3.4 uses a command shift of 0 instead of 24 as it should be, quirk that. Signed-off-by: Florian Fainelli --- drivers/mtd/nand/raw/brcmnand/brcmnand.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c index 2f2aaa554282..2dfb94c4cc93 100644 --- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c @@ -908,6 +908,12 @@ static void brcmnand_wr_corr_thresh(struct brcmnand_host *host, u8 val) static inline int brcmnand_cmd_shift(struct brcmnand_controller *ctrl) { + /* Kludge for the BCMA-based NAND controller which does not actually + * shift the command + */ + if (ctrl->nand_version == 0x0304 && brcmnand_soc_has_ops(ctrl->soc)) + return 0; + if (ctrl->nand_version < 0x0602) return 24; return 0;