forked from luck/tmp_suning_uos_patched
[MTD] NAND: Select chip before checking write protect status
The other way round works not really well with boards which have a static NAND chipselect. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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@ -1610,13 +1610,13 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
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if (!writelen)
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return 0;
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chipnr = (int)(to >> chip->chip_shift);
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chip->select_chip(mtd, chipnr);
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/* Check, if it is write protected */
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if (nand_check_wp(mtd))
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return -EIO;
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chipnr = (int)(to >> chip->chip_shift);
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chip->select_chip(mtd, chipnr);
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realpage = (int)(to >> chip->page_shift);
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page = realpage & chip->pagemask;
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blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
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