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mtd: spi-nor: disable protection for Winbond flash at startup
In case the flash was locked at boot time. Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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1 changed files with 4 additions and 3 deletions
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@ -1194,13 +1194,14 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode)
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mutex_init(&nor->lock);
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/*
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* Atmel, SST and Intel/Numonyx serial nor tend to power
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* up with the software protection bits set
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* Atmel, SST, Intel/Numonyx, and others serial NOR tend to power up
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* with the software protection bits set
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*/
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if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
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JEDEC_MFR(info) == SNOR_MFR_INTEL ||
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JEDEC_MFR(info) == SNOR_MFR_SST) {
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JEDEC_MFR(info) == SNOR_MFR_SST ||
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JEDEC_MFR(info) == SNOR_MFR_WINBOND) {
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write_enable(nor);
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write_sr(nor, 0);
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}
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