commit dcc41bc81c872862652d68af8993b9fa32ce56a4
author David Woodhouse <dwmw2@infradead.org> Fri Oct 27 09:55:34 2006 +0300
committer David Woodhouse <dwmw2@infradead.org> Fri Oct 27 09:55:34 2006 +0300
tree 6d01b2f4606b4d532d863312e82006924d0876f0
parent 2c8cfdcbeb1ab0ec7bbd5af1be311b55281154c4

[MTD] NAND: Reset Café controller before initialising.

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

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

drivers/mtd/nand/cafe.c

diff --git a/drivers/mtd/nand/cafe.c b/drivers/mtd/nand/cafe.c
index 6bcb430..dd274c8 100644
--- a/drivers/mtd/nand/cafe.c
+++ b/drivers/mtd/nand/cafe.c
@@ -598,6 +598,10 @@
 		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