target/linux/lantiq/patches-3.10/0104-nand.patch

   1 --- a/drivers/mtd/nand/xway_nand.c
   2 +++ b/drivers/mtd/nand/xway_nand.c
   3 @@ -80,13 +80,16 @@ static void xway_reset_chip(struct nand_
   4
   5  static void xway_select_chip(struct mtd_info *mtd, int chip)
   6  {
   7 +       static unsigned long csflags;
   8
   9         switch (chip) {
  10         case -1:
  11                 ltq_ebu_w32_mask(NAND_CON_CE, 0, EBU_NAND_CON);
  12                 ltq_ebu_w32_mask(NAND_CON_NANDM, 0, EBU_NAND_CON);
  13 +               spin_unlock_irqrestore(&ebu_lock, csflags);
  14                 break;
  15         case 0:
  16 +               spin_lock_irqsave(&ebu_lock, csflags);
  17                 ltq_ebu_w32_mask(0, NAND_CON_NANDM, EBU_NAND_CON);
  18                 ltq_ebu_w32_mask(0, NAND_CON_CE, EBU_NAND_CON);
  19                 break;