[PATCH] bcm43xx: OFDM fix for rev 1 cards

Nearly all of the writes to the bcm43xx internal lookup tables (ilt)
involve 16-bit quantities. Accordingly, the ilt_write routine was
coded to pass a u16 value. For one early GPHY chip, 32-bit quantities
are needed. For those writes, the value was clipped to 16 bits. This
patch adds an ilt_write32 routine that receives a 32-bit quantity
and writes it to the appropriate locations.

Signed-off-by: Larry Finger<Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 20 insertions, 4 deletions

diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_ilt.c b/drivers/net/wireless/bcm43xx/bcm43xx_ilt.c
index ad8e569..f2b8dba 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_ilt.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_ilt.c
@@ -325,6 +325,21 @@ void bcm43xx_ilt_write(struct bcm43xx_private *bcm, u16 offset, u16 val)
 	}
 }
 
+void bcm43xx_ilt_write32(struct bcm43xx_private *bcm, u16 offset, u32 val)
+{
+	if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_A) {
+		bcm43xx_phy_write(bcm, BCM43xx_PHY_ILT_A_CTRL, offset);
+		mmiowb();
+		bcm43xx_phy_write(bcm, BCM43xx_PHY_ILT_A_DATA2, (val & 0xFFFF0000) >> 16);
+		bcm43xx_phy_write(bcm, BCM43xx_PHY_ILT_A_DATA1, val & 0x0000FFFF);
+	} else {
+		bcm43xx_phy_write(bcm, BCM43xx_PHY_ILT_G_CTRL, offset);
+		mmiowb();
+		bcm43xx_phy_write(bcm, BCM43xx_PHY_ILT_G_DATA2, (val & 0xFFFF0000) >> 16);
+		bcm43xx_phy_write(bcm, BCM43xx_PHY_ILT_G_DATA1, val & 0x0000FFFF);
+	}
+}
+
 u16 bcm43xx_ilt_read(struct bcm43xx_private *bcm, u16 offset)
 {
 	if (bcm43xx_current_phy(bcm)->type == BCM43xx_PHYTYPE_A) {
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_ilt.h b/drivers/net/wireless/bcm43xx/bcm43xx_ilt.h
index 464521a..d7eaf5f 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_ilt.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_ilt.h
@@ -27,6 +27,7 @@ extern const u16 bcm43xx_ilt_sigmasqr2[BCM43xx_ILT_SIGMASQR_SIZE];
 
 
 void bcm43xx_ilt_write(struct bcm43xx_private *bcm, u16 offset, u16 val);
+void bcm43xx_ilt_write32(struct bcm43xx_private *bcm, u16 offset, u32 val);
 u16 bcm43xx_ilt_read(struct bcm43xx_private *bcm, u16 offset);
 
 #endif /* BCM43xx_ILT_H_ */
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_phy.c b/drivers/net/wireless/bcm43xx/bcm43xx_phy.c
index a08f9d1..3a5c9c2 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_phy.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_phy.c
@@ -344,7 +344,7 @@ static void bcm43xx_phy_setupg(struct bcm43xx_private *bcm)
 		for (i = 0; i < BCM43xx_ILT_NOISEG1_SIZE; i++)
 			bcm43xx_ilt_write(bcm, 0x1800 + i, bcm43xx_ilt_noiseg1[i]);
 		for (i = 0; i < BCM43xx_ILT_ROTOR_SIZE; i++)
-			bcm43xx_ilt_write(bcm, 0x2000 + i, bcm43xx_ilt_rotor[i]);
+			bcm43xx_ilt_write32(bcm, 0x2000 + i, bcm43xx_ilt_rotor[i]);
 	} else {
 		/* nrssi values are signed 6-bit values. Not sure why we write 0x7654 here... */
 		bcm43xx_nrssi_hw_write(bcm, 0xBA98, (s16)0x7654);
@@ -384,7 +384,7 @@ static void bcm43xx_phy_setupg(struct bcm43xx_private *bcm)
 	
 	if (phy->rev == 1) {
 		for (i = 0; i < BCM43xx_ILT_RETARD_SIZE; i++)
-			bcm43xx_ilt_write(bcm, 0x2400 + i, bcm43xx_ilt_retard[i]);
+			bcm43xx_ilt_write32(bcm, 0x2400 + i, bcm43xx_ilt_retard[i]);
 		for (i = 0; i < 4; i++) {
 			bcm43xx_ilt_write(bcm, 0x5404 + i, 0x0020);
 			bcm43xx_ilt_write(bcm, 0x5408 + i, 0x0020);
@@ -507,10 +507,10 @@ static void bcm43xx_phy_setupa(struct bcm43xx_private *bcm)
 		for (i = 0; i < BCM43xx_ILT_NOISEA2_SIZE; i++)
 			bcm43xx_ilt_write(bcm, 0x1800 + i, bcm43xx_ilt_noisea2[i]);
 		for (i = 0; i < BCM43xx_ILT_ROTOR_SIZE; i++)
-			bcm43xx_ilt_write(bcm, 0x2000 + i, bcm43xx_ilt_rotor[i]);
+			bcm43xx_ilt_write32(bcm, 0x2000 + i, bcm43xx_ilt_rotor[i]);
 		bcm43xx_phy_init_noisescaletbl(bcm);
 		for (i = 0; i < BCM43xx_ILT_RETARD_SIZE; i++)
-			bcm43xx_ilt_write(bcm, 0x2400 + i, bcm43xx_ilt_retard[i]);
+			bcm43xx_ilt_write32(bcm, 0x2400 + i, bcm43xx_ilt_retard[i]);
 		break;
 	case 3:
 		for (i = 0; i < 64; i++)