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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, > There is an ID collision with the chip of same density from the JV > family. Both chips are very similar in practice, it is mostly a matter > of electrical differences (mostly power consumption being lower). > > As a significant difference, RV chips identify themselves as supporting > the new SFDP (rev F) field which forces an alternate write SR2 > opcode (0x31). > > Signed-off-by: Miquel Raynal > --- > + cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id > ef4018 > + cat /sys/bus/spi/devices/spi0.0/spi-nor/manufacturer > winbond > + xxd -p /sys/bus/spi/devices/spi0.0/spi-nor/sfdp > 534644500a0100ff00080117800000ffffffffffffffffffffffffffffff > ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff > ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff > ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff > ffffffffffffffffe520f9ffffffff0344eb086b083b42bbfeffffffffff ^^^^^^^^ Just noticed size is wrong like patch #18. BFPT DWORD2 advertises memory density in bits (0-based). In 128Mb parts, this should be 0x07FFFFFF. Need post_bfpt_fixup. Thanks, Takahiro ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/