commit 49e721ec6ca74f90ee99089ad2de1c338a95c6d5
author Gertjan van Wingerde <gwingerde@gmail.com> Sat Feb 13 20:55:49 2010 +0100
committer John W. Linville <linville@tuxdriver.com> Mon Feb 15 16:14:11 2010 -0500
tree 203bd5d436af015599f083bcb447e0ee03c91654
parent 714fa6636331d33c6045efe394f36c964a6c14ee

rt2x00: rework RT chipset and revision determination for PCI an SOC devices.

The recent rt2800 devices are no longer really identified by their PCI
ID's, but rather by the contents of their CSR0 register. Also for the
other chipsets is the contents of this CSR0 register important.
Change the chipset determination logic to be more aligned with the rt2800
model.
Preparation for the support of rt3070 / rt3090 based devices.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt73usb.c

diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 2950ac7..f39a8ed 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -1820,10 +1820,10 @@
 	 */
 	value = rt2x00_get_field16(eeprom, EEPROM_ANTENNA_RF_TYPE);
 	rt2x00usb_register_read(rt2x00dev, MAC_CSR0, &reg);
-	rt2x00_set_chip(rt2x00dev, RT2571, value, reg);
+	rt2x00_set_chip(rt2x00dev, rt2x00_get_field32(reg, MAC_CSR0_CHIPSET),
+			value, rt2x00_get_field32(reg, MAC_CSR0_REVISION));
 
-	if (!rt2x00_check_rev(rt2x00dev, 0x000ffff0, 0x25730) ||
-	    rt2x00_check_rev(rt2x00dev, 0x0000000f, 0)) {
+	if (!rt2x00_rt(rt2x00dev, RT2573) || (rt2x00_rev(rt2x00dev) == 0)) {
 		ERROR(rt2x00dev, "Invalid RT chipset detected.\n");
 		return -ENODEV;
 	}