rt2x00: Wakeup hardware before loading firmware

According to the legacy drivers the AUTOWAKEUP_CFG
register must be reset to 0 before loading the firmware.

Instead of during rt2800{pci,usb}_write_firmware it
must actually be done in rt2800_load_firmware() before
resetting the WPDMA_GLO_CFG and PWR_PIN_CFG registers.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2800lib.c

@@ -384,6 +384,12 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
 	unsigned int i;
 	u32 reg;
 
+	/*
+	 * If driver doesn't wake up firmware here,
+	 * rt2800_load_firmware will hang forever when interface is up again.
+	 */
+	rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000);
+
 	/*
 	 * Wait for stable hardware.
 	 */

drivers/net/wireless/rt2x00/rt2800pci.c

@@ -196,8 +196,6 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 {
 	u32 reg;
 
-	rt2800_register_write(rt2x00dev, AUTOWAKEUP_CFG, 0x00000000);
-
 	/*
 	 * enable Host program ram write selection
 	 */