[MTD] DiskOnChip: Wait for the command to finish.
Do not use the ready function here, as it might hang for ever.
The result will show, whether the chip is there or not
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index d592767..a9b1da4 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -16,7 +16,7 @@
*
* Interface to generic NAND code for M-Systems DiskOnChip devices
*
- * $Id: diskonchip.c,v 1.48 2005/01/31 22:22:21 gleixner Exp $
+ * $Id: diskonchip.c,v 1.49 2005/02/22 21:48:21 gleixner Exp $
*/
#include <linux/kernel.h>
@@ -410,7 +410,12 @@
doc200x_hwcontrol(mtd, NAND_CTL_SETALE);
this->write_byte(mtd, 0);
doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
-
+
+ /* We cant' use dev_ready here, but at least we wait for the
+ * command to complete
+ */
+ udelay(50);
+
ret = this->read_byte(mtd) << 8;
ret |= this->read_byte(mtd);
@@ -429,6 +434,8 @@
doc2000_write_byte(mtd, 0);
doc200x_hwcontrol(mtd, NAND_CTL_CLRALE);
+ udelay(50);
+
ident.dword = readl(docptr + DoC_2k_CDSN_IO);
if (((ident.byte[0] << 8) | ident.byte[1]) == ret) {
printk(KERN_INFO "DiskOnChip 2000 responds to DWORD access\n");