mac80211: add patch descriptions to rt2x00 patches

Prepare patches for sending upstream by adding patch descriptions
generated from the original OpenWrt commits adding each patch.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit d4feb66048f6a8f387eedfb162a1184cdae9d756)

1 files changed, 95 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-RXDCOC-calibration.patch b/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-RXDCOC-calibration.patch
new file mode 100644
index 0000000000..821af87ec1
--- /dev/null
+++ b/package/kernel/mac80211/patches/rt2x00/984-rt2x00-add-RXDCOC-calibration.patch
@@ -0,0 +1,95 @@
+From: =?UTF-8?q?Tomislav=20Po=C5=BEega?= <pozega.tomislav@gmail.com>
+Date: Mon, 8 Jan 2018 13:43:37 +0100
+Subject: [PATCH] rt2x00: add RXDCOC calibration
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Add RXDCOC calibration code from mtk driver.
+
+Signed-off-by: Tomislav Požega <pozega.tomislav@gmail.com>
+---
+ .../net/wireless/ralink/rt2x00/rt2800lib.c    | 65 +++++++++++++++++++
+ 1 file changed, 65 insertions(+)
+
+--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+@@ -8637,6 +8637,70 @@ static void rt2800_r_calibration(struct
+ 	rt2800_register_write(rt2x00dev, PWR_PIN_CFG, MAC_PWR_PIN_CFG);
+ }
+ 
++static void rt2800_rxdcoc_calibration(struct rt2x00_dev *rt2x00dev)
++{
++	u8 bbpreg = 0;
++	u32 macvalue = 0, macvalue1 = 0;
++	u8 saverfb0r2, saverfb5r4, saverfb7r4, rfvalue;
++	int i;
++
++	saverfb0r2 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 2);
++	rfvalue = saverfb0r2;
++	rfvalue |= 0x03;
++	rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, rfvalue);
++
++	rt2800_bbp_write(rt2x00dev, 158, 141);
++	bbpreg = rt2800_bbp_read(rt2x00dev, 159);
++	bbpreg |= 0x10;
++	rt2800_bbp_write(rt2x00dev, 159, bbpreg);
++
++	macvalue = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL);
++	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x8);
++
++	for (i = 0; i < 10000; i++) {
++		macvalue1 = rt2800_register_read(rt2x00dev, MAC_STATUS_CFG);
++		if (macvalue1 & 0x1)
++			udelay(50);
++		else
++			break;
++	}
++
++	saverfb5r4 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 0);
++	saverfb7r4 = rt2800_rfcsr_read_bank(rt2x00dev, 7, 4);
++	saverfb5r4 = saverfb5r4 & (~0x40);
++	saverfb7r4 = saverfb7r4 & (~0x40);
++	rt2800_rfcsr_write_dccal(rt2x00dev, 4, 0x64);
++	rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, saverfb5r4);
++	rt2800_rfcsr_write_bank(rt2x00dev, 7, 4, saverfb7r4);
++
++	rt2800_bbp_write(rt2x00dev, 158, 141);
++	bbpreg = rt2800_bbp_read(rt2x00dev, 159);
++	bbpreg = bbpreg & (~0x40);
++	rt2800_bbp_write(rt2x00dev, 159, bbpreg);
++	bbpreg |= 0x48;
++	rt2800_bbp_write(rt2x00dev, 159, bbpreg);
++
++	for (i = 0; i < 10000; i++) {
++		bbpreg = rt2800_bbp_read(rt2x00dev, 159);
++		if ((bbpreg & 0x40)==0)
++			break;
++		udelay(50);
++	}
++
++	bbpreg = rt2800_bbp_read(rt2x00dev, 159);
++	bbpreg = bbpreg & (~0x40);
++	rt2800_bbp_write(rt2x00dev, 159, bbpreg);
++
++	rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, macvalue);
++
++	rt2800_bbp_write(rt2x00dev, 158, 141);
++	bbpreg = rt2800_bbp_read(rt2x00dev, 159);
++	bbpreg &= (~0x10);
++	rt2800_bbp_write(rt2x00dev, 159, bbpreg);
++
++	rt2800_rfcsr_write_bank(rt2x00dev, 0, 2, saverfb0r2);
++}
++
+ static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
+ 				       bool set_bw, bool is_ht40)
+ {
+@@ -9246,6 +9310,7 @@ static void rt2800_init_rfcsr_6352(struc
+ 
+ 	rt2800_r_calibration(rt2x00dev);
+ 	rt2800_rf_self_txdc_cal(rt2x00dev);
++	rt2800_rxdcoc_calibration(rt2x00dev);
+ 	rt2800_bw_filter_calibration(rt2x00dev, true);
+ 	rt2800_bw_filter_calibration(rt2x00dev, false);
+ }