2014-04-12 11:59:07 +00:00
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--- a/drivers/mtd/nand/xway_nand.c
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+++ b/drivers/mtd/nand/xway_nand.c
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@@ -80,13 +80,16 @@ static void xway_reset_chip(struct nand_
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2014-03-30 09:15:37 +00:00
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static void xway_select_chip(struct mtd_info *mtd, int chip)
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{
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+ static unsigned long csflags;
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switch (chip) {
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case -1:
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ltq_ebu_w32_mask(NAND_CON_CE, 0, EBU_NAND_CON);
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ltq_ebu_w32_mask(NAND_CON_NANDM, 0, EBU_NAND_CON);
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+ spin_unlock_irqrestore(&ebu_lock, csflags);
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break;
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case 0:
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+ spin_lock_irqsave(&ebu_lock, csflags);
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ltq_ebu_w32_mask(0, NAND_CON_NANDM, EBU_NAND_CON);
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ltq_ebu_w32_mask(0, NAND_CON_CE, EBU_NAND_CON);
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break;
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