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Tue, 17 Sep 2019 15:55:54 +0000 From: To: , , , , , Subject: [PATCH 23/23] mtd: spi-nor: Unlock global block protection on sst26vf064b Thread-Topic: [PATCH 23/23] mtd: spi-nor: Unlock global block protection on sst26vf064b Thread-Index: AQHVbXBjDO1Czo3MO0OTInLfcDjFoA== Date: Tue, 17 Sep 2019 15:55:54 +0000 Message-ID: <20190917155426.7432-24-tudor.ambarus@microchip.com> References: <20190917155426.7432-1-tudor.ambarus@microchip.com> In-Reply-To: <20190917155426.7432-1-tudor.ambarus@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR0302CA0007.eurprd03.prod.outlook.com (2603:10a6:800:e9::17) 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: 215e3ad1-1624-42d6-87e3-08d73b878586 x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(5600167)(711020)(4605104)(1401327)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(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 [216.71.150.166 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_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-aspeed@lists.ozlabs.org, Tudor.Ambarus@microchip.com, andrew@aj.id.au, linux-kernel@vger.kernel.org, vz@mleia.com, linux-mediatek@lists.infradead.org, joel@jms.id.au, matthias.bgg@gmail.com, computersforpeace@gmail.com, dwmw2@infradead.org, linux-arm-kernel@lists.infradead.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: Tudor Ambarus To avoid inadvertent writes during power-up, sst26vf064b is write-protected by default after a power-on reset cycle. Unlock the serial flash memory by using the Global Block Protection Unlock command - it offers a single command cycle that unlocks the entire memory array. Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/spi-nor.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 19556a9dd3fa..19919c9c1bd8 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -2442,7 +2442,9 @@ static const struct flash_info spi_nor_ids[] = { { "sst25wf080", INFO(0xbf2505, 0, 64 * 1024, 16, SECT_4K | SST_WRITE) }, { "sst26wf016b", INFO(0xbf2651, 0, 64 * 1024, 32, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, - { "sst26vf064b", INFO(0xbf2643, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) }, + { "sst26vf064b", INFO(0xbf2643, 0, 64 * 1024, 128, + SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ | + UNLOCK_GLOBAL_BLOCK) }, /* ST Microelectronics -- newer production may have feature updates */ { "m25p05", INFO(0x202010, 0, 32 * 1024, 2, 0) },