mirror of
https://github.com/torvalds/linux.git
synced 2024-12-23 19:31:53 +00:00
e7868a2f71
Add optional local-bd-address property which is a 6-byte array storing the assigned BD address. Since having a unique BD address is critical, a per-device property value should be allocated. This property is usually added by the boot loader which has access to the provisioned data. Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
125 lines
2.8 KiB
Plaintext
125 lines
2.8 KiB
Plaintext
Qualcomm WCNSS Binding
|
|
|
|
This binding describes the Qualcomm WCNSS hardware. It consists of control
|
|
block and a BT, WiFi and FM radio block, all using SMD as command channels.
|
|
|
|
- compatible:
|
|
Usage: required
|
|
Value type: <string>
|
|
Definition: must be: "qcom,wcnss",
|
|
|
|
- qcom,smd-channel:
|
|
Usage: required
|
|
Value type: <string>
|
|
Definition: standard SMD property specifying the SMD channel used for
|
|
communication with the WiFi firmware.
|
|
Should be "WCNSS_CTRL".
|
|
|
|
- qcom,mmio:
|
|
Usage: required
|
|
Value type: <prop-encoded-array>
|
|
Definition: reference to a node specifying the wcnss "ccu" and "dxe"
|
|
register blocks. The node must be compatible with one of
|
|
the following:
|
|
"qcom,riva",
|
|
"qcom,pronto"
|
|
|
|
= SUBNODES
|
|
The subnodes of the wcnss node are optional and describe the individual blocks in
|
|
the WCNSS.
|
|
|
|
== Bluetooth
|
|
The following properties are defined to the bluetooth node:
|
|
|
|
- compatible:
|
|
Usage: required
|
|
Value type: <string>
|
|
Definition: must be:
|
|
"qcom,wcnss-bt"
|
|
|
|
- local-bd-address:
|
|
Usage: optional
|
|
Value type: <u8 array>
|
|
Definition: see Documentation/devicetree/bindings/net/bluetooth.txt
|
|
|
|
== WiFi
|
|
The following properties are defined to the WiFi node:
|
|
|
|
- compatible:
|
|
Usage: required
|
|
Value type: <string>
|
|
Definition: must be one of:
|
|
"qcom,wcnss-wlan",
|
|
|
|
- interrupts:
|
|
Usage: required
|
|
Value type: <prop-encoded-array>
|
|
Definition: should specify the "rx" and "tx" interrupts
|
|
|
|
- interrupt-names:
|
|
Usage: required
|
|
Value type: <stringlist>
|
|
Definition: must contain "rx" and "tx"
|
|
|
|
- qcom,smem-state:
|
|
Usage: required
|
|
Value type: <prop-encoded-array>
|
|
Definition: should reference the tx-enable and tx-rings-empty SMEM states
|
|
|
|
- qcom,smem-state-names:
|
|
Usage: required
|
|
Value type: <stringlist>
|
|
Definition: must contain "tx-enable" and "tx-rings-empty"
|
|
|
|
= EXAMPLE
|
|
The following example represents a SMD node, with one edge representing the
|
|
"pronto" subsystem, with the wcnss device and its wcn3680 BT and WiFi blocks
|
|
described; as found on the 8974 platform.
|
|
|
|
smd {
|
|
compatible = "qcom,smd";
|
|
|
|
pronto-edge {
|
|
interrupts = <0 142 1>;
|
|
|
|
qcom,ipc = <&apcs 8 17>;
|
|
qcom,smd-edge = <6>;
|
|
|
|
wcnss {
|
|
compatible = "qcom,wcnss";
|
|
qcom,smd-channels = "WCNSS_CTRL";
|
|
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
|
|
qcom,mmio = <&pronto>;
|
|
|
|
bt {
|
|
compatible = "qcom,wcnss-bt";
|
|
|
|
/* BD address 00:11:22:33:44:55 */
|
|
local-bd-address = [ 55 44 33 22 11 00 ];
|
|
};
|
|
|
|
wlan {
|
|
compatible = "qcom,wcnss-wlan";
|
|
|
|
interrupts = <0 145 0>, <0 146 0>;
|
|
interrupt-names = "tx", "rx";
|
|
|
|
qcom,smem-state = <&apps_smsm 10>, <&apps_smsm 9>;
|
|
qcom,smem-state-names = "tx-enable", "tx-rings-empty";
|
|
};
|
|
};
|
|
};
|
|
};
|
|
|
|
soc {
|
|
pronto: pronto {
|
|
compatible = "qcom,pronto";
|
|
|
|
reg = <0xfb204000 0x2000>, <0xfb202000 0x1000>, <0xfb21b000 0x3000>;
|
|
reg-names = "ccu", "dxe", "pmu";
|
|
};
|
|
};
|