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Commit c6fc2171 authored by Brian Norris's avatar Brian Norris
Browse files

mtd: spi-nor: disable protection for Winbond flash at startup 



In case the flash was locked at boot time.

Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
parent 357ca38d

drivers/mtd/spi-nor/spi-nor.c

+4 −3
Original line number Diff line number Diff line
@@ -1194,13 +1194,14 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode) 
	mutex_init(&nor->lock);



	/*

	 * Atmel, SST and Intel/Numonyx serial nor tend to power

	 * up with the software protection bits set

	 * Atmel, SST, Intel/Numonyx, and others serial NOR tend to power up

	 * with the software protection bits set

	 */



	if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||

	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||

	    JEDEC_MFR(info) == SNOR_MFR_SST) {

	    JEDEC_MFR(info) == SNOR_MFR_SST ||

	    JEDEC_MFR(info) == SNOR_MFR_WINBOND) {

		write_enable(nor);

		write_sr(nor, 0);

	}