From: RA-Jay Hung <jay_hung@ralinktech.com>
Date: Sun, 30 Jan 2011 12:21:22 +0000 (+0100)
Subject: rt2x00: Correct initial value of US_CYC_CNT register for pcie interface
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c6fcc0e5f72ef6ad61e1d58cf99e27661ee206e4;p=linux-beck.git

rt2x00: Correct initial value of US_CYC_CNT register for pcie interface

CLOCK CYCLE: Clock cycle count in 1us
PCI:0x21, PCIE:0x7d, USB:0x1e

Signed-off-by: RA-Jay Hung <jay_hung@ralinktech.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index c7e615cebac1..ec8159ce0ee8 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -372,8 +372,12 @@
 
 /*
  * US_CYC_CNT
+ * BT_MODE_EN: Bluetooth mode enable
+ * CLOCK CYCLE: Clock cycle count in 1us.
+ * PCI:0x21, PCIE:0x7d, USB:0x1e
  */
 #define US_CYC_CNT			0x02a4
+#define US_CYC_CNT_BT_MODE_EN		FIELD32(0x00000100)
 #define US_CYC_CNT_CLOCK_CYCLE		FIELD32(0x000000ff)
 
 /*
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 4753fb1b0aaf..4c34fceaec11 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2207,6 +2207,10 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev)
 		rt2800_register_read(rt2x00dev, US_CYC_CNT, &reg);
 		rt2x00_set_field32(&reg, US_CYC_CNT_CLOCK_CYCLE, 30);
 		rt2800_register_write(rt2x00dev, US_CYC_CNT, reg);
+	} else if (rt2x00_is_pcie(rt2x00dev)) {
+		rt2800_register_read(rt2x00dev, US_CYC_CNT, &reg);
+		rt2x00_set_field32(&reg, US_CYC_CNT_CLOCK_CYCLE, 125);
+		rt2800_register_write(rt2x00dev, US_CYC_CNT, reg);
 	}
 
 	rt2800_register_read(rt2x00dev, HT_FBK_CFG0, &reg);