Commit 513b6bee authored Feb 05, 2008 by Ben Dooks Committed by Jeff Garzik Feb 11, 2008

DM9000: Update retry count whilst identifying chip



Reading the ID register does not always return the correct ID
from the device, so we retry several times to see if we get
a correct value.

These failures seem to be excaserbated by the speed of the
access to the chip (possibly time between issuing the address
and then the data cycle).

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

parent f42d8aea

drivers/net/dm9000.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -643,7 +643,7 @@ dm9000_probe(struct platform_device *pdev)
		dm9000_reset(db);

		/* try two times, DM9000 sometimes gets the first read wrong */
		for (i = 0; i < 2; i++) {
		for (i = 0; i < 8; i++) {
		id_val = ior(db, DM9000_VIDL);
		id_val \|= (u32)ior(db, DM9000_VIDH) << 8;
		id_val \|= (u32)ior(db, DM9000_PIDL) << 16;

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