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Mon, 5 Oct 2020 10:32:01 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE110.ent.ti.com (157.170.170.21) 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; Mon, 5 Oct 2020 10:32:01 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 095FVdlm052390; Mon, 5 Oct 2020 10:31:58 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , , Subject: [PATCH v16 06/15] mtd: spi-nor: core: use dummy cycle and address width info from SFDP Date: Mon, 5 Oct 2020 21:01:29 +0530 Message-ID: <20201005153138.6437-7-p.yadav@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201005153138.6437-1-p.yadav@ti.com> References: <20201005153138.6437-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201005_113205_145122_216A5481 X-CRM114-Status: GOOD ( 10.97 ) X-Spam-Score: -3.2 (---) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-3.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [198.47.19.142 listed in wl.mailspike.net] -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [198.47.19.142 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders -0.7 DKIMWL_WL_HIGH DKIMwl.org - High trust sender 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: , Cc: Boris Brezillon , Sekhar Nori , Pratyush Yadav Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.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 Reviewed-by: Tudor Ambarus --- 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 ad280874a2e8..b5bb4d6cffc1 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);