[MTD] NAND: Reset Café controller before initialising.

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

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

diff --git a/drivers/mtd/nand/cafe.c b/drivers/mtd/nand/cafe.c
index 6bcb430..dd274c8 100644 (file)
--- 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