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=-9.7 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 35D5FC76188 for ; Mon, 22 Jul 2019 06:02:56 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0DD8321955 for ; Mon, 22 Jul 2019 06:02:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="OpSxCYRl"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="iAeg5YAb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0DD8321955 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=zuUDmboQOrRHeyJGd4FuhKJGc710IgcCKz3jNU5sSN4=; b=OpSxCYRlxA5/k2 CVQfXVJ03ExWQT9pQYQHj8xwxn5EXgcn1B8s8YSRHYRicZlrrWJEUwr0mkTS4D3Acq2un+bAleORr FEcrH7xMsU9fpCKbbsL427Fj6vRzhDKdjR8un8oz+fCKN41cPhTGAnf/0A+agTFd++fp+6f9dpr8+ xVU5Y0o0gf/enaVmAOGDtCVrBDJc63UemYnNKqOSkKQxkSPJ6XBDgUm3UsL8c8IgNE4dv/lDchKVC jFl8UBNAc0fltnrVhcWjf6xLcIC7HsApNLHQ3BuDQc9sjjTqsf2SIRXN3MNrfi0U/drKOD93DEbmQ hVzGq5yIyg6WK/etwNaw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hpRPD-00036W-U1; Mon, 22 Jul 2019 06:02:39 +0000 Received: from mail-ed1-x542.google.com ([2a00:1450:4864:20::542]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hpRK1-0006Gq-C2 for linux-mtd@lists.infradead.org; Mon, 22 Jul 2019 05:57:18 +0000 Received: by mail-ed1-x542.google.com with SMTP id e3so39499348edr.10 for ; Sun, 21 Jul 2019 22:57:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references; bh=JWav04oSOMMfjnrIfRfnbnhq134i7LRODNuQ+JDA4d8=; b=iAeg5YAbgEc4aYUgaNNECEsRpX+e9jc1I5YBQtLvCy5UcbJE62lDIR8qMw5Uo0URLB OR5S1U843vWDtFQk2NDReGy4Qxb7N98CbYzYs19BsFtoqLD5DWV07b8V1JPSFcBXbjyW HWYtON8kw3CBY7KNYNNyGUBHFOA2grIb+ldo42JgaM/4i3ZcSJ6dGqY8b5ov1FKoVBoE u87X+cv6T+p3shg/9BvIHVmZMWjV6L+fwDaG0iRgxd82oLNaJqJYY0HpMvnJNy+GF4+3 1xdSCLtQ22Jf1yyhsfFqpq9MU4Nvy6SLNJPh91tNdAwCOX3JwyfS85HihQlxDN91dRgF e32w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=JWav04oSOMMfjnrIfRfnbnhq134i7LRODNuQ+JDA4d8=; b=F6cDVadVcRi2GHilnt4doTglaoj/AUJ/23qcO04wCruI5NlMFsJjMbVnWGUjDNRRRd DPhVw0lPaOmD4L/UDAF4lLZxKNSLqzYIepvfjGMlv1Q+yMwkFux1Cn2F3Wnt3TgMJ1a+ EjN2CA2VmL3zKTszUrgO1YZVzpmktqSQiW57KL3GDep3TXY0aEdbx6SD5k9PLXgKYWMZ cEWFj3XwE7fen0HiViMiteFT4eZWTgEVdr8lBIeu/bhXUky75plHSSvZZQpepY0rfJmq Dq5bCf/neEpa7M2qRI4V8qbzhkYcXAXoPoX5YM5Ax13B4lALZiqtnnxfm8BE3LLJPEvt /Xgg== X-Gm-Message-State: APjAAAVkUtOpvSVlcmco3zBAUAWidkDOURkfpn88bsU0CFqd4e3WlD+E Vo+zIbbfGyJNKabthCkDgr8= X-Google-Smtp-Source: APXvYqzUeEvZzXubeuDVswHFU5kKDVfDWDqDmcg24fW79naD2l793eQa7IXung57mhGRdtZ8MAtoew== X-Received: by 2002:a50:89b4:: with SMTP id g49mr58295914edg.39.1563775036035; Sun, 21 Jul 2019 22:57:16 -0700 (PDT) Received: from opensdev.fritz.box (business-178-015-117-054.static.arcor-ip.net. [178.15.117.54]) by smtp.gmail.com with ESMTPSA id a6sm10351725eds.19.2019.07.21.22.57.14 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 21 Jul 2019 22:57:15 -0700 (PDT) From: shiva.linuxworks@gmail.com X-Google-Original-From: sshivamurthy@micron.com To: Miquel Raynal , Richard Weinberger , David Woodhouse , Brian Norris , Marek Vasut , Vignesh Raghavendra , Boris Brezillon , Marcel Ziswiler , Frieder Schrempf , Shivamurthy Shastri , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Jeff Kletsky , Chuanhong Guo , liaoweixiong Subject: [PATCH 8/8] mtd: spinand: micron: Enable micron flashes with multi-die Date: Mon, 22 Jul 2019 07:56:21 +0200 Message-Id: <20190722055621.23526-9-sshivamurthy@micron.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190722055621.23526-1-sshivamurthy@micron.com> References: <20190722055621.23526-1-sshivamurthy@micron.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190721_225717_549043_82343D06 X-CRM114-Status: GOOD ( 10.70 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org From: Shivamurthy Shastri Some of the Micron flashes has multi-die, and need to select the die each time while accessing it. Signed-off-by: Shivamurthy Shastri --- drivers/mtd/nand/spi/micron.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c index 1e28ea3d1362..fa2b43caf39d 100644 --- a/drivers/mtd/nand/spi/micron.c +++ b/drivers/mtd/nand/spi/micron.c @@ -90,6 +90,19 @@ static int micron_ecc_get_status(struct spinand_device *spinand, return -EINVAL; } +static int micron_select_target(struct spinand_device *spinand, + unsigned int target) +{ + struct spi_mem_op op = SPINAND_SET_FEATURE_OP(0xd0, + spinand->scratchbuf); + + if (target == 1) + target = 0x40; + + *spinand->scratchbuf = target; + return spi_mem_exec_op(spinand->spimem, &op); +} + static int micron_spinand_detect(struct spinand_device *spinand) { const struct spi_mem_op *op; @@ -105,6 +118,7 @@ static int micron_spinand_detect(struct spinand_device *spinand) spinand->flags = 0; spinand->eccinfo.get_status = micron_ecc_get_status; spinand->eccinfo.ooblayout = µn_ooblayout_ops; + spinand->select_target = micron_select_target; op = spinand_select_op_variant(spinand, &read_cache_variants); -- 2.17.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/