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* Qualcomm Atheros ath10k wireless devices
Required properties:
- compatible: Should be one of the following:
* "qcom,ath10k"
* "qcom,ipq4019-wifi"
* "qcom,wcn3990-wifi"
PCI based devices uses compatible string "qcom,ath10k" and takes calibration
data along with board specific data via "qcom,ath10k-calibration-data".
Rest of the properties are not applicable for PCI based devices.
AHB based devices (i.e. ipq4019) uses compatible string "qcom,ipq4019-wifi"
and also uses most of the properties defined in this doc (except
"qcom,ath10k-calibration-data"). It uses "qcom,ath10k-pre-calibration-data"
to carry pre calibration data.
In general, entry "qcom,ath10k-pre-calibration-data" and
"qcom,ath10k-calibration-data" conflict with each other and only one
can be provided per device.
SNOC based devices (i.e. wcn3990) uses compatible string "qcom,wcn3990-wifi".
- reg: Address and length of the register set for the device.
- reg-names: Must include the list of following reg names,
"membase"
- interrupts: reference to the list of 17 interrupt numbers for "qcom,ipq4019-wifi"
compatible target.
reference to the list of 12 interrupt numbers for "qcom,wcn3990-wifi"
compatible target.
Must contain interrupt-names property per entry for
"qcom,ath10k", "qcom,ipq4019-wifi" compatible targets.
- interrupt-names: Must include the entries for MSI interrupt
names ("msi0" to "msi15") and legacy interrupt
name ("legacy") for "qcom,ath10k", "qcom,ipq4019-wifi"
compatible targets.
Optional properties:
- resets: Must contain an entry for each entry in reset-names.
See ../reset/reseti.txt for details.
- reset-names: Must include the list of following reset names,
"wifi_cpu_init"
"wifi_radio_srif"
"wifi_radio_warm"
"wifi_radio_cold"
"wifi_core_warm"
"wifi_core_cold"
- clocks: List of clock specifiers, must contain an entry for each required
entry in clock-names.
- clock-names: Should contain the clock names "wifi_wcss_cmd", "wifi_wcss_ref",
"wifi_wcss_rtc" for "qcom,ipq4019-wifi" compatible target and
"cxo_ref_clk_pin" and optionally "qdss" for "qcom,wcn3990-wifi"
compatible target.
- qcom,msi_addr: MSI interrupt address.
- qcom,msi_base: Base value to add before writing MSI data into
MSI address register.
- qcom,ath10k-calibration-variant: string to search for in the board-2.bin
variant list with the same bus and device
specific ids
- qcom,ath10k-calibration-data : calibration data + board specific data
as an array, the length can vary between
hw versions.
- qcom,ath10k-pre-calibration-data : pre calibration data as an array,
the length can vary between hw versions.
- <supply-name>-supply: handle to the regulator device tree node
optional "supply-name" are "vdd-0.8-cx-mx",
"vdd-1.8-xo", "vdd-1.3-rfa", "vdd-3.3-ch0",
and "vdd-3.3-ch1".
- memory-region:
Usage: optional
Value type: <phandle>
Definition: reference to the reserved-memory for the msa region
used by the wifi firmware running in Q6.
- iommus:
Usage: optional
Value type: <prop-encoded-array>
Definition: A list of phandle and IOMMU specifier pairs.
- ext-fem-name:
Usage: Optional
Value type: string
Definition: Name of external front end module used. Some valid FEM names
for example: "microsemi-lx5586", "sky85703-11"
and "sky85803" etc.
- qcom,snoc-host-cap-8bit-quirk:
Usage: Optional
Value type: <empty>
Definition: Quirk specifying that the firmware expects the 8bit version
of the host capability QMI request
- qcom,xo-cal-data: xo cal offset to be configured in xo trim register.
- qcom,msa-fixed-perm: Boolean context flag to disable SCM call for statically
mapped msa region.
- qcom,coexist-support : should contain eithr "0" or "1" to indicate coex
support by the hardware.
- qcom,coexist-gpio-pin : gpio pin number information to support coex
which will be used by wifi firmware.
* Subnodes
The ath10k wifi node can contain one optional firmware subnode.
Firmware subnode is needed when the platform does not have TustZone.
The firmware subnode must have:
- iommus:
Usage: required
Value type: <prop-encoded-array>
Definition: A list of phandle and IOMMU specifier pairs.
Example (to supply PCI based wifi block details):
In this example, the node is defined as child node of the PCI controller.
pci {
pcie@0 {
reg = <0 0 0 0 0>;
#interrupt-cells = <1>;
#size-cells = <2>;
#address-cells = <3>;
device_type = "pci";
wifi@0,0 {
reg = <0 0 0 0 0>;
qcom,ath10k-calibration-data = [ 01 02 03 ... ];
ext-fem-name = "microsemi-lx5586";
};
};
};
Example (to supply ipq4019 SoC wifi block details):
wifi0: wifi@a000000 {
compatible = "qcom,ipq4019-wifi";
reg = <0xa000000 0x200000>;
resets = <&gcc WIFI0_CPU_INIT_RESET>,
<&gcc WIFI0_RADIO_SRIF_RESET>,
<&gcc WIFI0_RADIO_WARM_RESET>,
<&gcc WIFI0_RADIO_COLD_RESET>,
<&gcc WIFI0_CORE_WARM_RESET>,
<&gcc WIFI0_CORE_COLD_RESET>;
reset-names = "wifi_cpu_init",
"wifi_radio_srif",
"wifi_radio_warm",
"wifi_radio_cold",
"wifi_core_warm",
"wifi_core_cold";
clocks = <&gcc GCC_WCSS2G_CLK>,
<&gcc GCC_WCSS2G_REF_CLK>,
<&gcc GCC_WCSS2G_RTC_CLK>;
clock-names = "wifi_wcss_cmd",
"wifi_wcss_ref",
"wifi_wcss_rtc";
interrupts = <0 0x20 0x1>,
<0 0x21 0x1>,
<0 0x22 0x1>,
<0 0x23 0x1>,
<0 0x24 0x1>,
<0 0x25 0x1>,
<0 0x26 0x1>,
<0 0x27 0x1>,
<0 0x28 0x1>,
<0 0x29 0x1>,
<0 0x2a 0x1>,
<0 0x2b 0x1>,
<0 0x2c 0x1>,
<0 0x2d 0x1>,
<0 0x2e 0x1>,
<0 0x2f 0x1>,
<0 0xa8 0x0>;
interrupt-names = "msi0", "msi1", "msi2", "msi3",
"msi4", "msi5", "msi6", "msi7",
"msi8", "msi9", "msi10", "msi11",
"msi12", "msi13", "msi14", "msi15",
"legacy";
qcom,msi_addr = <0x0b006040>;
qcom,msi_base = <0x40>;
qcom,ath10k-pre-calibration-data = [ 01 02 03 ... ];
qcom,coexist-support = <1>;
qcom,coexist-gpio-pin = <0x33>;
};
Example (to supply wcn3990 SoC wifi block details):
wifi@18000000 {
compatible = "qcom,wcn3990-wifi";
reg = <0x18800000 0x800000>;
reg-names = "membase";
clocks = <&clock_gcc clk_rf_clk2_pin>;
clock-names = "cxo_ref_clk_pin";
interrupts =
<GIC_SPI 414 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 415 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 416 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 417 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 418 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 419 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 420 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 421 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 422 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 423 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH>;
vdd-0.8-cx-mx-supply = <&pm8998_l5>;
vdd-1.8-xo-supply = <&vreg_l7a_1p8>;
vdd-1.3-rfa-supply = <&vreg_l17a_1p3>;
vdd-3.3-ch0-supply = <&vreg_l25a_3p3>;
vdd-3.3-ch1-supply = <&vreg_l26a_3p3>;
memory-region = <&wifi_msa_mem>;
iommus = <&apps_smmu 0x0040 0x1>;
qcom,msa-fixed-perm;
wifi-firmware {
iommus = <&apps_iommu 0xc22 0x1>;
};
};
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