summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt')
-rw-r--r--Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt68
1 files changed, 68 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
new file mode 100644
index 000000000..9bf9bbac1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/marvell-8xxx.txt
@@ -0,0 +1,68 @@
+Marvell 8787/8897/8997 (sd8787/sd8897/sd8997/pcie8997) SDIO/PCIE devices
+------
+
+This node provides properties for controlling the Marvell SDIO/PCIE wireless device.
+The node is expected to be specified as a child node to the SDIO/PCIE controller that
+connects the device to the system.
+
+Required properties:
+
+ - compatible : should be one of the following:
+ * "marvell,sd8787"
+ * "marvell,sd8897"
+ * "marvell,sd8997"
+ * "pci11ab,2b42"
+ * "pci1b4b,2b42"
+
+Optional properties:
+
+ - marvell,caldata* : A series of properties with marvell,caldata prefix,
+ represent calibration data downloaded to the device during
+ initialization. This is an array of unsigned 8-bit values.
+ the properties should follow below property name and
+ corresponding array length:
+ "marvell,caldata-txpwrlimit-2g" (length = 566).
+ "marvell,caldata-txpwrlimit-5g-sub0" (length = 502).
+ "marvell,caldata-txpwrlimit-5g-sub1" (length = 688).
+ "marvell,caldata-txpwrlimit-5g-sub2" (length = 750).
+ "marvell,caldata-txpwrlimit-5g-sub3" (length = 502).
+ - marvell,wakeup-pin : a wakeup pin number of wifi chip which will be configured
+ to firmware. Firmware will wakeup the host using this pin
+ during suspend/resume.
+ - interrupts : interrupt pin number to the cpu. driver will request an irq based on
+ this interrupt number. during system suspend, the irq will be enabled
+ so that the wifi chip can wakeup host platform under certain condition.
+ during system resume, the irq will be disabled to make sure
+ unnecessary interrupt is not received.
+ - vmmc-supply: a phandle of a regulator, supplying VCC to the card
+ - mmc-pwrseq: phandle to the MMC power sequence node. See "mmc-pwrseq-*"
+ for documentation of MMC power sequence bindings.
+
+Example:
+
+Tx power limit calibration data is configured in below example.
+The calibration data is an array of unsigned values, the length
+can vary between hw versions.
+IRQ pin 38 is used as system wakeup source interrupt. wakeup pin 3 is configured
+so that firmware can wakeup host using this device side pin.
+
+&mmc3 {
+ vmmc-supply = <&wlan_en_reg>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ cap-power-off-card;
+ keep-power-in-suspend;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ mwifiex: wifi@1 {
+ compatible = "marvell,sd8897";
+ reg = <1>;
+ interrupt-parent = <&pio>;
+ interrupts = <38 IRQ_TYPE_LEVEL_LOW>;
+
+ marvell,caldata_00_txpwrlimit_2g_cfg_set = /bits/ 8 <
+ 0x01 0x00 0x06 0x00 0x08 0x02 0x89 0x01>;
+ marvell,wakeup-pin = <3>;
+ };
+};