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>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/net/wireless/rt2x00/rt61pci.h b/drivers/net/wireless/rt2x00/rt61pci.h
index 6f33f7f5668c..ab20c7758824 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.h
+++ b/drivers/net/wireless/rt2x00/rt61pci.h
@@ -28,6 +28,13 @@
 #define RT61PCI_H
 
 /*
+ * RT chip PCI IDs.
+ */
+#define RT2561s_PCI_ID                  0x0301
+#define RT2561_PCI_ID                   0x0302
+#define RT2661_PCI_ID                   0x0401
+
+/*
  * RF chip defines.
  */
 #define RF5225                          0x0001
@@ -225,6 +232,8 @@ struct hw_pairwise_ta_entry {
  * MAC_CSR0: ASIC revision number.
  */
 #define MAC_CSR0                        0x3000
+#define MAC_CSR0_REVISION               FIELD32(0x0000000f)
+#define MAC_CSR0_CHIPSET                FIELD32(0x000ffff0)
 
 /*
  * MAC_CSR1: System control register.