forked from openwrt/openwrt
/
983-rt2x00-add-r-calibration.patch
166 lines (164 loc) · 5.41 KB
/
983-rt2x00-add-r-calibration.patch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -8469,6 +8469,155 @@ static void rt2800_rf_self_txdc_cal(stru
rt2x00_info(rt2x00dev, "RF Tx self calibration end\n");
}
+static int rt2800_calcrcalibrationcode(struct rt2x00_dev *rt2x00dev, int d1, int d2)
+{
+ int calcode;
+ calcode = ((d2 - d1) * 1000) / 43;
+ if ((calcode%10) >= 5)
+ calcode += 10;
+ calcode = (calcode / 10);
+
+ return calcode;
+}
+
+static void rt2800_r_calibration(struct rt2x00_dev *rt2x00dev)
+{
+ u32 savemacsysctrl;
+ u8 saverfb0r1, saverfb0r34, saverfb0r35;
+ u8 saverfb5r4, saverfb5r17, saverfb5r18;
+ u8 saverfb5r19, saverfb5r20;
+ u8 savebbpr22, savebbpr47, savebbpr49;
+ u8 bytevalue = 0;
+ int rcalcode;
+ u8 r_cal_code = 0;
+ char d1 = 0, d2 = 0;
+ u8 rfvalue;
+ u32 MAC_RF_BYPASS0, MAC_RF_CONTROL0, MAC_PWR_PIN_CFG;
+ u32 maccfg, macstatus;
+ int i;
+
+ saverfb0r1 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 1);
+ saverfb0r34 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 34);
+ saverfb0r35 = rt2800_rfcsr_read_bank(rt2x00dev, 0, 35);
+ saverfb5r4 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 4);
+ saverfb5r17 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 17);
+ saverfb5r18 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 18);
+ saverfb5r19 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 19);
+ saverfb5r20 = rt2800_rfcsr_read_bank(rt2x00dev, 5, 20);
+
+ savebbpr22 = rt2800_bbp_read(rt2x00dev, 22);
+ savebbpr47 = rt2800_bbp_read(rt2x00dev, 47);
+ savebbpr49 = rt2800_bbp_read(rt2x00dev, 49);
+
+ savemacsysctrl = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL);
+ MAC_RF_BYPASS0 = rt2800_register_read(rt2x00dev, RF_BYPASS0);
+ MAC_RF_CONTROL0 = rt2800_register_read(rt2x00dev, RF_CONTROL0);
+ MAC_PWR_PIN_CFG = rt2800_register_read(rt2x00dev, PWR_PIN_CFG);
+
+ maccfg = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL);
+ maccfg &= (~0x04);
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, maccfg);
+
+ for (i = 0; i < 10000; i++) {
+ macstatus = rt2800_register_read(rt2x00dev, MAC_STATUS_CFG);
+ if (macstatus & 0x1)
+ udelay(50);
+ else
+ break;
+ }
+
+ if (i == 10000)
+ rt2x00_warn(rt2x00dev, "Wait MAC Tx Status to MAX !!!\n");
+
+ maccfg = rt2800_register_read(rt2x00dev, MAC_SYS_CTRL);
+ maccfg &= (~0x04);
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, maccfg);
+
+ for (i = 0; i < 10000; i++) {
+ macstatus = rt2800_register_read(rt2x00dev, MAC_STATUS_CFG);
+ if (macstatus & 0x2)
+ udelay(50);
+ else
+ break;
+ }
+
+ if (i == 10000)
+ rt2x00_warn(rt2x00dev, "Wait MAC Rx Status to MAX !!!\n");
+
+ rfvalue = (MAC_RF_BYPASS0 | 0x3004);
+ rt2800_register_write(rt2x00dev, RF_BYPASS0, rfvalue);
+ rfvalue = (MAC_RF_CONTROL0 | (~0x3002));
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, rfvalue);
+
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, 0x27);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 17, 0x80);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 18, 0x83);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 19, 0x00);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 20, 0x20);
+
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, 0x00);
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 34, 0x13);
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 35, 0x00);
+
+ rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x1);
+
+ rt2800_bbp_write(rt2x00dev, 47, 0x04);
+ rt2800_bbp_write(rt2x00dev, 22, 0x80);
+ udelay(100);
+ bytevalue = rt2800_bbp_read(rt2x00dev, 49);
+ if (bytevalue > 128)
+ d1 = bytevalue - 256;
+ else
+ d1 = (char)bytevalue;
+ rt2800_bbp_write(rt2x00dev, 22, 0x0);
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 35, 0x01);
+
+ rt2800_bbp_write(rt2x00dev, 22, 0x80);
+ udelay(100);
+ bytevalue = rt2800_bbp_read(rt2x00dev, 49);
+ if (bytevalue > 128)
+ d2 = bytevalue - 256;
+ else
+ d2 = (char)bytevalue;
+ rt2800_bbp_write(rt2x00dev, 22, 0x0);
+
+ rcalcode = rt2800_calcrcalibrationcode(rt2x00dev, d1, d2);
+ if (rcalcode < 0)
+ r_cal_code = 256 + rcalcode;
+ else
+ r_cal_code = (u8)rcalcode;
+
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 7, r_cal_code);
+
+ rt2800_bbp_write(rt2x00dev, 22, 0x0);
+
+ bytevalue = rt2800_bbp_read(rt2x00dev, 21);
+ bytevalue |= 0x1;
+ rt2800_bbp_write(rt2x00dev, 21, bytevalue);
+ bytevalue = rt2800_bbp_read(rt2x00dev, 21);
+ bytevalue &= (~0x1);
+ rt2800_bbp_write(rt2x00dev, 21, bytevalue);
+
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 1, saverfb0r1);
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 34, saverfb0r34);
+ rt2800_rfcsr_write_bank(rt2x00dev, 0, 35, saverfb0r35);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 4, saverfb5r4);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 17, saverfb5r17);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 18, saverfb5r18);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 19, saverfb5r19);
+ rt2800_rfcsr_write_bank(rt2x00dev, 5, 20, saverfb5r20);
+
+ rt2800_bbp_write(rt2x00dev, 22, savebbpr22);
+ rt2800_bbp_write(rt2x00dev, 47, savebbpr47);
+ rt2800_bbp_write(rt2x00dev, 49, savebbpr49);
+
+ rt2800_register_write(rt2x00dev, RF_BYPASS0, MAC_RF_BYPASS0);
+ rt2800_register_write(rt2x00dev, RF_CONTROL0, MAC_RF_CONTROL0);
+
+ rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, savemacsysctrl);
+ rt2800_register_write(rt2x00dev, PWR_PIN_CFG, MAC_PWR_PIN_CFG);
+}
+
static void rt2800_bbp_core_soft_reset(struct rt2x00_dev *rt2x00dev,
bool set_bw, bool is_ht40)
{
@@ -9076,6 +9225,7 @@ static void rt2800_init_rfcsr_6352(struc
rt2800_rfcsr_write_dccal(rt2x00dev, 5, 0x00);
rt2800_rfcsr_write_dccal(rt2x00dev, 17, 0x7C);
+ rt2800_r_calibration(rt2x00dev);
rt2800_rf_self_txdc_cal(rt2x00dev);
rt2800_bw_filter_calibration(rt2x00dev, true);
rt2800_bw_filter_calibration(rt2x00dev, false);