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-rw-r--r--drivers/mtd/nand/fsl_elbc_nand.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index ddd37d2554e..58db2785512 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -946,6 +946,13 @@ static int __devinit fsl_elbc_ctrl_init(struct fsl_elbc_ctrl *ctrl)
{
struct fsl_lbc_regs __iomem *lbc = ctrl->regs;
+ /*
+ * NAND transactions can tie up the bus for a long time, so set the
+ * bus timeout to max by clearing LBCR[BMT] (highest base counter
+ * value) and setting LBCR[BMTPS] to the highest prescaler value.
+ */
+ clrsetbits_be32(&lbc->lbcr, LBCR_BMT, 15);
+
/* clear event registers */
setbits32(&lbc->ltesr, LTESR_NAND_MASK);
out_be32(&lbc->lteatr, 0);