Add udelay to A100U2W SCSI driver
udelay is required on Sun Ultra 5.
I don't know any reason or explanation for this, it was found purely
experimentally.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index 1dd0fcf..1e8bdd4 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -401,6 +401,7 @@
/* Copy the code from the BIOS to the SRAM */
+ udelay(500); /* Required on Sun Ultra 5 ... 350 -> failures */
bios_addr = (u16) le32_to_cpu(data32); /* FW code locate at BIOS address + ? */
for (i = 0, data32_ptr = (u8 *) & data32; /* Download the code */
i < 0x1000; /* Firmware code size = 4K */
