Hi guys,
I am testing the following driver on top of Linus' master branch with a
n25q128a11 part:
https://lore.kernel.org/linux-mtd/1572886297-45400-3-git-send-email-john.garry@xxxxxxxxxx/
I am finding flash lock is not working. Even after a “successful” lock,
flash_lock is reporting flash is unlocked. And I can still write to the
flash.
I find that since 39d1e3340c73 ("mtd: spi-nor: Fix clearing of QE bit on
lock()/unlock()"), we're using a 16b SR for this part in the driver, but
this part only has a 8b SR.
This hack fixes the problem for me:
@ -4691,7 +4691,7 @@ static void spi_nor_info_init_params(struct spi_nor
*nor)
params->set_4byte = spansion_set_4byte;
params->setup = spi_nor_default_setup;
/* Default to 16-bit Write Status (01h) Command */
- nor->flags |= SNOR_F_HAS_16BIT_SR;
+// nor->flags |= SNOR_F_HAS_16BIT_SR;
Any idea what's going wrong?
Thanks,
John
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