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

   1 Index: linux-3.10.34/drivers/mtd/nand/xway_nand.c
   2 ===================================================================
   3 --- linux-3.10.34.orig/drivers/mtd/nand/xway_nand.c     2014-03-28 11:51:49.790953906 +0000
   4 +++ linux-3.10.34/drivers/mtd/nand/xway_nand.c  2014-03-28 15:45:08.196369790 +0000
   5 @@ -80,13 +80,16 @@
   6
   7  static void xway_select_chip(struct mtd_info *mtd, int chip)
   8  {
   9 +       static unsigned long csflags;
  10
  11         switch (chip) {
  12         case -1:
  13                 ltq_ebu_w32_mask(NAND_CON_CE, 0, EBU_NAND_CON);
  14                 ltq_ebu_w32_mask(NAND_CON_NANDM, 0, EBU_NAND_CON);
  15 +               spin_unlock_irqrestore(&ebu_lock, csflags);
  16                 break;
  17         case 0:
  18 +               spin_lock_irqsave(&ebu_lock, csflags);
  19                 ltq_ebu_w32_mask(0, NAND_CON_NANDM, EBU_NAND_CON);
  20                 ltq_ebu_w32_mask(0, NAND_CON_CE, EBU_NAND_CON);
  21                 break;