mac80211: rt2x00: add support for the RT3662/RT3883 SoCs

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 40558

1 files changed, 136 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/600-0020-rt2x00-rt2800lib-add-channel-configuration-code-for-.patch b/package/kernel/mac80211/patches/600-0020-rt2x00-rt2800lib-add-channel-configuration-code-for-.patch
new file mode 100644
index 0000000..d9cbb33
--- /dev/null
+++ b/package/kernel/mac80211/patches/600-0020-rt2x00-rt2800lib-add-channel-configuration-code-for-.patch
@@ -0,0 +1,136 @@
+From 269f19c848a2380db03a3f207cafb88e28d71c53 Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Sun, 24 Mar 2013 19:26:28 +0100
+Subject: [PATCH] rt2x00: rt2800lib: add channel configuration code for RT3883
+
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ drivers/net/wireless/rt2x00/rt2800lib.c |   72 +++++++++++++++++++++++++++++--
+ 1 file changed, 69 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/wireless/rt2x00/rt2800lib.c
++++ b/drivers/net/wireless/rt2x00/rt2800lib.c
+@@ -3385,6 +3385,36 @@ static char rt2800_txpower_to_dev(struct
+ 		return clamp_t(char, txpower, MIN_A_TXPOWER, MAX_A_TXPOWER);
+ }
+ 
++static void rt3883_bbp_adjust(struct rt2x00_dev *rt2x00dev,
++			      struct rf_channel *rf)
++{
++	u8 bbp;
++
++	bbp = (rf->channel > 14) ? 0x48 : 0x38;
++	rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, bbp);
++
++	rt2800_bbp_write(rt2x00dev, 69, 0x12);
++
++	if (rf->channel <= 14) {
++		rt2800_bbp_write(rt2x00dev, 70, 0x0a);
++	} else {
++		/* Disable CCK packet detection */
++		rt2800_bbp_write(rt2x00dev, 70, 0x00);
++	}
++
++	rt2800_bbp_write(rt2x00dev, 73, 0x10);
++
++	if (rf->channel > 14) {
++		rt2800_bbp_write(rt2x00dev, 62, 0x1d);
++		rt2800_bbp_write(rt2x00dev, 63, 0x1d);
++		rt2800_bbp_write(rt2x00dev, 64, 0x1d);
++	} else {
++		rt2800_bbp_write(rt2x00dev, 62, 0x2d);
++		rt2800_bbp_write(rt2x00dev, 63, 0x2d);
++		rt2800_bbp_write(rt2x00dev, 64, 0x2d);
++	}
++}
++
+ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
+ 				  struct ieee80211_conf *conf,
+ 				  struct rf_channel *rf,
+@@ -3403,6 +3433,12 @@ static void rt2800_config_channel(struct
+ 			rt2800_txpower_to_dev(rt2x00dev, rf->channel,
+ 					      info->default_power3);
+ 
++	switch (rt2x00dev->chip.rt) {
++	case RT3883:
++		rt3883_bbp_adjust(rt2x00dev, rf);
++		break;
++	}
++
+ 	switch (rt2x00dev->chip.rf) {
+ 	case RF2020:
+ 	case RF3020:
+@@ -3484,6 +3520,15 @@ static void rt2800_config_channel(struct
+ 		rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
+ 		rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain);
+ 		rt2800_bbp_write(rt2x00dev, 77, 0x98);
++	} else if (rt2x00_rt(rt2x00dev, RT3883)) {
++		rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain);
++		rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
++		rt2800_bbp_write(rt2x00dev, 64, 0x37 - rt2x00dev->lna_gain);
++
++		if (rt2x00dev->default_ant.rx_chain_num > 1)
++			rt2800_bbp_write(rt2x00dev, 86, 0x46);
++		else
++			rt2800_bbp_write(rt2x00dev, 86, 0);
+ 	} else {
+ 		rt2800_bbp_write(rt2x00dev, 62, 0x37 - rt2x00dev->lna_gain);
+ 		rt2800_bbp_write(rt2x00dev, 63, 0x37 - rt2x00dev->lna_gain);
+@@ -3496,6 +3541,7 @@ static void rt2800_config_channel(struct
+ 		    !rt2x00_rt(rt2x00dev, RT5392)) {
+ 			if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
+ 				rt2800_bbp_write(rt2x00dev, 82, 0x62);
++				rt2800_bbp_write(rt2x00dev, 82, 0x62);
+ 				rt2800_bbp_write(rt2x00dev, 75, 0x46);
+ 			} else {
+ 				if (rt2x00_rt(rt2x00dev, RT3593))
+@@ -3504,19 +3550,22 @@ static void rt2800_config_channel(struct
+ 					rt2800_bbp_write(rt2x00dev, 82, 0x84);
+ 				rt2800_bbp_write(rt2x00dev, 75, 0x50);
+ 			}
+-			if (rt2x00_rt(rt2x00dev, RT3593))
++			if (rt2x00_rt(rt2x00dev, RT3593) ||
++			    rt2x00_rt(rt2x00dev, RT3883))
+ 				rt2800_bbp_write(rt2x00dev, 83, 0x8a);
+ 		}
+ 
+ 	} else {
+ 		if (rt2x00_rt(rt2x00dev, RT3572))
+ 			rt2800_bbp_write(rt2x00dev, 82, 0x94);
+-		else if (rt2x00_rt(rt2x00dev, RT3593))
++		else if (rt2x00_rt(rt2x00dev, RT3593) ||
++			 rt2x00_rt(rt2x00dev, RT3883))
+ 			rt2800_bbp_write(rt2x00dev, 82, 0x82);
+ 		else
+ 			rt2800_bbp_write(rt2x00dev, 82, 0xf2);
+ 
+-		if (rt2x00_rt(rt2x00dev, RT3593))
++		if (rt2x00_rt(rt2x00dev, RT3593) ||
++		    rt2x00_rt(rt2x00dev, RT3883))
+ 			rt2800_bbp_write(rt2x00dev, 83, 0x9a);
+ 
+ 		if (rt2x00_has_cap_external_lna_a(rt2x00dev))
+@@ -3638,6 +3687,23 @@ static void rt2800_config_channel(struct
+ 
+ 		rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
+ 
++		usleep_range(1000, 1500);
++	}
++
++	if (rt2x00_rt(rt2x00dev, RT3883)) {
++		if (!conf_is_ht40(conf))
++			rt2800_bbp_write(rt2x00dev, 105, 0x34);
++		else
++			rt2800_bbp_write(rt2x00dev, 105, 0x04);
++
++		/* AGC init */
++		if (rf->channel <= 14)
++			reg = 0x2e + rt2x00dev->lna_gain;
++		else
++			reg = 0x20 + ((rt2x00dev->lna_gain * 5) / 3);
++
++		rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
++
+ 		usleep_range(1000, 1500);
+ 	}
+