| 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>; |
| }; |
| }; |
