1 Qualcomm WCNSS Binding
2
3 This binding describes the Qualcomm WCNSS hardware. It consists of control
4 block and a BT, WiFi and FM radio block, all using SMD as command channels.
5
6 - compatible:
7 Usage: required
8 Value type: <string>
9 Definition: must be: "qcom,wcnss",
10
11 - qcom,smd-channel:
12 Usage: required
13 Value type: <string>
14 Definition: standard SMD property specifying the SMD channel used for
15 communication with the WiFi firmware.
16 Should be "WCNSS_CTRL".
17
18 - qcom,mmio:
19 Usage: required
20 Value type: <prop-encoded-array>
21 Definition: reference to a node specifying the wcnss "ccu" and "dxe"
22 register blocks. The node must be compatible with one of
23 the following:
24 "qcom,riva",
25 "qcom,pronto"
26
27 - firmware-name:
28 Usage: optional
29 Value type: <string>
30 Definition: specifies the relative firmware image path for the WLAN NV
31 blob. Defaults to "wlan/prima/WCNSS_qcom_wlan_nv.bin" if
32 not specified.
33
34 = SUBNODES
35 The subnodes of the wcnss node are optional and describe the individual blocks in
36 the WCNSS.
37
38 == Bluetooth
39 The following properties are defined to the bluetooth node:
40
41 - compatible:
42 Usage: required
43 Value type: <string>
44 Definition: must be:
45 "qcom,wcnss-bt"
46
47 - local-bd-address:
48 Usage: optional
49 Value type: <u8 array>
50 Definition: see Documentation/devicetree/bindings/net/bluetooth.txt
51
52 == WiFi
53 The following properties are defined to the WiFi node:
54
55 - compatible:
56 Usage: required
57 Value type: <string>
58 Definition: must be one of:
59 "qcom,wcnss-wlan",
60
61 - interrupts:
62 Usage: required
63 Value type: <prop-encoded-array>
64 Definition: should specify the "rx" and "tx" interrupts
65
66 - interrupt-names:
67 Usage: required
68 Value type: <stringlist>
69 Definition: must contain "rx" and "tx"
70
71 - qcom,smem-state:
72 Usage: required
73 Value type: <prop-encoded-array>
74 Definition: should reference the tx-enable and tx-rings-empty SMEM states
75
76 - qcom,smem-state-names:
77 Usage: required
78 Value type: <stringlist>
79 Definition: must contain "tx-enable" and "tx-rings-empty"
80
81 = EXAMPLE
82 The following example represents a SMD node, with one edge representing the
83 "pronto" subsystem, with the wcnss device and its wcn3680 BT and WiFi blocks
84 described; as found on the 8974 platform.
85
86 smd {
87 compatible = "qcom,smd";
88
89 pronto-edge {
90 interrupts = <0 142 1>;
91
92 qcom,ipc = <&apcs 8 17>;
93 qcom,smd-edge = <6>;
94
95 wcnss {
96 compatible = "qcom,wcnss";
97 qcom,smd-channels = "WCNSS_CTRL";
98
99 #address-cells = <1>;
100 #size-cells = <1>;
101
102 qcom,mmio = <&pronto>;
103
104 bt {
105 compatible = "qcom,wcnss-bt";
106
107 /* BD address 00:11:22:33:44:55 */
108 local-bd-address = [ 55 44 33 22 11 00 ];
109 };
110
111 wlan {
112 compatible = "qcom,wcnss-wlan";
113
114 interrupts = <0 145 0>, <0 146 0>;
115 interrupt-names = "tx", "rx";
116
117 qcom,smem-state = <&apps_smsm 10>, <&apps_smsm 9>;
118 qcom,smem-state-names = "tx-enable", "tx-rings-empty";
119 };
120 };
121 };
122 };
123
124 soc {
125 pronto: pronto {
126 compatible = "qcom,pronto";
127
128 reg = <0xfb204000 0x2000>, <0xfb202000 0x1000>, <0xfb21b000 0x3000>;
129 reg-names = "ccu", "dxe", "pmu";
130 };
131 };
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