Commit 761ed01b authored Apr 27, 2010 by Andy Fleming Committed by David S. Miller Apr 27, 2010

gianfar: Wait for both RX and TX to stop



When gracefully stopping the controller, the driver was continuing if
*either* RX or TX had stopped.  We need to wait for both, or the
controller could get into an invalid state.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d87ff58f

drivers/net/gianfar.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -1511,9 +1511,9 @@ static void gfar_halt_nodisable(struct net_device *dev)
		tempval \|= (DMACTRL_GRS \| DMACTRL_GTS);
		gfar_write(&regs->dmactrl, tempval);

		while (!(gfar_read(&regs->ievent) &
		(IEVENT_GRSC \| IEVENT_GTSC)))
		cpu_relax();
		spin_event_timeout(((gfar_read(&regs->ievent) &
		(IEVENT_GRSC \| IEVENT_GTSC)) ==
		(IEVENT_GRSC \| IEVENT_GTSC)), -1, 0);
		}
		}