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X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Hi Miquel/Martin, About this driver, including F35SQA001G/F35SQA002G parts, I'm concerned that the driver will always use 32H for update_cache operations, which means it's not compitable with those SPI controller who can't transmit 2048 bytes (most small-density SPI-NAND's page size nowadays) at one time. The following controller's driver seems that they can't transmit 2048 bytes in one transmission: - spi-amd.c: 64 bytes (AMD_SPI_MAX_DATA) - spi-amlogic-spifc-a1.c: 512 bytes (SPIFC_A1_BUFFER_SIZE) - spi-fsl-qspi.c: 1KB - spi-hisi-sfc-v3xx.c: 64*6 bytes - spi-intel.c: 64 bytes (INTEL_SPI_FIFO_SZ) - spi-microchip-core-qspi.c: 256 bytesc (MAX_DATA_CMD_LEN) - spi-nxp-fspi.c: TX:1KB, RX: 512B in FIFO mode - spi-wpcm-fiu.c: 4B I guess we need to add some check to make sure that F35SQA series work only with those SPI controllers who can transmit more than 2048 bytes(NAND page size) at one time? BRs, Sky ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/