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=-13.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 D3969C4727E for ; Wed, 30 Sep 2020 18:58:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 890BC207F7 for ; Wed, 30 Sep 2020 18:58:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Brh36mN8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729951AbgI3S6N (ORCPT ); Wed, 30 Sep 2020 14:58:13 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:44690 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730806AbgI3S6D (ORCPT ); Wed, 30 Sep 2020 14:58:03 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 08UIvt7g118446; Wed, 30 Sep 2020 13:57:55 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1601492275; bh=OX9m+UI0jJNt7oZ/ZpYCrrw5gPMgmZ2xQDYAdUejbbs=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Brh36mN84LXshIwZ2pxuiNKQH7amjtIRNgjQc3vVCqONcrjcLXy2G7lQJNc9Y6Un5 nCt0wPvh+aK/Ms1tN+aAwkgesGLdWDr5G8P1AwNfTFAsE57oSlrLnpLDZXkNCF7q0K G/xFSGJY5/yQQYRqMn4Qy7Wdgj4M9W5SfUS6rNys= 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 08UIvtWJ081062 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 30 Sep 2020 13:57:55 -0500 Received: from DFLE107.ent.ti.com (10.64.6.28) 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 15.1.1979.3; Wed, 30 Sep 2020 13:57:55 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE107.ent.ti.com (10.64.6.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 30 Sep 2020 13:57:55 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 08UIvX3F007008; Wed, 30 Sep 2020 13:57:52 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , , CC: Pratyush Yadav , Sekhar Nori , Boris Brezillon Subject: [PATCH v14 06/15] mtd: spi-nor: core: use dummy cycle and address width info from SFDP Date: Thu, 1 Oct 2020 00:27:23 +0530 Message-ID: <20200930185732.6201-7-p.yadav@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200930185732.6201-1-p.yadav@ti.com> References: <20200930185732.6201-1-p.yadav@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The xSPI Profile 1.0 table specifies how many dummy cycles and address bytes are needed for the Read Status Register command in octal DTR mode. Use that information to send the correct Read SR command. Signed-off-by: Pratyush Yadav --- drivers/mtd/spi-nor/core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 97e82a4821f6..1465cf80f978 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -385,6 +385,11 @@ static int spi_nor_read_sr(struct spi_nor *nor, u8 *sr) SPI_MEM_OP_NO_DUMMY, SPI_MEM_OP_DATA_IN(1, sr, 0)); + if (nor->reg_proto == SNOR_PROTO_8_8_8_DTR) { + op.addr.nbytes = nor->params->rdsr_addr_nbytes; + op.dummy.nbytes = nor->params->rdsr_dummy; + } + spi_nor_spimem_setup_op(nor, &op, nor->reg_proto); ret = spi_mem_exec_op(nor->spimem, &op); @@ -418,6 +423,11 @@ static int spi_nor_read_fsr(struct spi_nor *nor, u8 *fsr) SPI_MEM_OP_NO_DUMMY, SPI_MEM_OP_DATA_IN(1, fsr, 0)); + if (nor->reg_proto == SNOR_PROTO_8_8_8_DTR) { + op.addr.nbytes = nor->params->rdsr_addr_nbytes; + op.dummy.nbytes = nor->params->rdsr_dummy; + } + spi_nor_spimem_setup_op(nor, &op, nor->reg_proto); ret = spi_mem_exec_op(nor->spimem, &op); -- 2.28.0