[MTD] NAND: Reset Café controller before initialising.

Fixes http://dev.laptop.org/ticket/237

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/mtd/nand/cafe.c b/drivers/mtd/nand/cafe.c
index 6bcb430b951c..dd274c877b5e 100644
--- a/drivers/mtd/nand/cafe.c
+++ b/drivers/mtd/nand/cafe.c
@@ -598,6 +598,10 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
                 cafe->nand.block_bad = cafe_nand_block_bad;
         }
         
+        /* Start off by resetting the NAND controller completely */
+        writel(1, cafe->mmio + 0x3034);
+        writel(0, cafe->mmio + 0x3034);
+
         /* Timings from Marvell's test code (not verified or calculated by us) */
         writel(0xffffffff, cafe->mmio + CAFE_NAND_IRQ_MASK);
 #if 1