[v3,0/3] mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard
Message ID | 20221201212750.267721-1-nathan.morrison@timesys.com |
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[75.76.18.234]) by smtp.gmail.com with ESMTPSA id l15-20020a37f90f000000b006fc447eebe5sm4071321qkj.27.2022.12.01.13.27.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Dec 2022 13:27:52 -0800 (PST) From: Nathan Barrett-Morrison <nathan.morrison@timesys.com> Cc: nathan.morrison@timesys.com, greg.malysa@timesys.com, Tudor Ambarus <tudor.ambarus@microchip.com>, Pratyush Yadav <pratyush@kernel.org>, Michael Walle <michael@walle.cc>, Miquel Raynal <miquel.raynal@bootlin.com>, Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>, linux-mtd@lists.infradead.org (open list:SPI NOR SUBSYSTEM), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v3 0/3] mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard Date: Thu, 1 Dec 2022 16:27:47 -0500 Message-Id: <20221201212750.267721-1-nathan.morrison@timesys.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751036583397390264?= X-GMAIL-MSGID: =?utf-8?q?1751048734048879563?= |
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mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard
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Message
Nathan Barrett-Morrison
Dec. 1, 2022, 9:27 p.m. UTC
In the latest JEDEC standard (JESD216F), there are now bitfields in the 4 byte address instruction table for 1S-1S-8S and 1S-8S-8S modes This patchset adds support for checking the 4BAIT for these modes, along with additional NO_SFDP_FLAGS to support enabling these new modes v2: Move page program commands into sfdp.c instead of core.c, as this appears to conform more closely with spi-nor paradigm. Page program buswidth appears to be automatically determined, so let's follow suit and do the same. v3: - Added missing SPI_NOR_OCTAL_READ_1_8_8 to spi_nor_sfdp check in spi_nor_init_params_deprecated() - Convert IS25LX256 to 1S-8S-8S instead of 1S-1S-8S - Tested and confirmed both 1S-1S-8S and 1S-8S-8S work on IS25LX256 Nathan Barrett-Morrison (3): mtd: spi-nor: Extend SFDP 4byte address instruction lookup table with new octal modes as per JEDEC JESD216F mtd: spi-nor: Add additional octal-mode flags to be checked during SFDP mtd: spi-nor: Add support for IS25LX256 operating in 1S-8S-8S octal read mode drivers/mtd/spi-nor/core.c | 8 ++++++++ drivers/mtd/spi-nor/core.h | 5 +++-- drivers/mtd/spi-nor/issi.c | 3 +++ drivers/mtd/spi-nor/sfdp.c | 13 +++++++++++++ 4 files changed, 27 insertions(+), 2 deletions(-)