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Mon, 26 Aug 2019 12:09:07 +0000 From: To: , , , , , , Subject: [RESEND PATCH v3 16/20] mtd: spi-nor: Add the SPI_NOR_XSR_RDY flag Thread-Topic: [RESEND PATCH v3 16/20] mtd: spi-nor: Add the SPI_NOR_XSR_RDY flag Thread-Index: AQHVXAcM/ZWa5nusDk2eFvW+kEyFdA== Date: Mon, 26 Aug 2019 12:09:02 +0000 Message-ID: <20190826120821.16351-17-tudor.ambarus@microchip.com> References: <20190826120821.16351-1-tudor.ambarus@microchip.com> In-Reply-To: <20190826120821.16351-1-tudor.ambarus@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR09CA0046.eurprd09.prod.outlook.com (2603:10a6:802:28::14) To MN2PR11MB4448.namprd11.prod.outlook.com (2603:10b6:208:193::29) x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.9.5 x-originating-ip: [94.177.32.156] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4e67c631-0694-43c1-3416-08d72a1e2ec7 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600166)(711020)(4605104)(1401327)(2017052603328)(7193020); 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X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [68.232.153.233 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 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@bootlin.com, Tudor.Ambarus@microchip.com Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Boris Brezillon S3AN flashes use a specific opcode to read the status register. We currently use the SPI_S3AN flag to decide whether this specific SR read opcode should be used, but SPI_S3AN is about to disappear, so let's add a new flag. Note that we use the same bit as SPI_S3AN implies SPI_NOR_XSR_RDY and vice versa. Signed-off-by: Boris Brezillon Signed-off-by: Tudor Ambarus Reviewed-by: Vignesh Raghavendra --- v3: no changes drivers/mtd/spi-nor/spi-nor.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index edf1c8badac9..2699e999d21a 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -211,6 +211,14 @@ struct flash_info { * bit. Must be used with * SPI_NOR_HAS_LOCK. */ +#define SPI_NOR_XSR_RDY BIT(10) /* + * S3AN flashes have specific opcode to + * read the status register. + * Flags SPI_NOR_XSR_RDY and SPI_S3AN + * use the same bit as one implies the + * other, but we will get rid of + * SPI_S3AN soon. + */ #define SPI_S3AN BIT(10) /* * Xilinx Spartan 3AN In-System Flash * (MFR cannot be used for probing @@ -4798,7 +4806,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, * spi_nor_wait_till_ready(). Xilinx S3AN share MFR * with Atmel spi-nor */ - if (info->flags & SPI_S3AN) + if (info->flags & SPI_NOR_XSR_RDY) nor->flags |= SNOR_F_READY_XSR_RDY; if (info->flags & SPI_NOR_HAS_LOCK)