hansemro
commented
3 years ago arch/arm/boot/dts/omap4-kc1.dts
/ {
...
/* regulator for wl12xx on sdio5 */
wl12xx_vmmc: wl12xx_vmmc {
pinctrl-names = "default";
pinctrl-0 = <&wl12xx_gpio>;
compatible = "regulator-fixed";
regulator-name = "vwl1271";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
gpio = <&gpio2 22 GPIO_ACTIVE_HIGH>; /* gpio_54 */
startup-delay-us = <70000>;
enable-active-high;
};
...
};
...
&omap4_pmx_core {
...
uart2_pins: pinmux_uart2_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x118, PIN_INPUT_PULLUP | MUX_MODE0) /* uart2_cts.uart2_cts */
OMAP4_IOPAD(0x11a, PIN_OUTPUT | MUX_MODE0) /* uart2_rts.uart2_rts */
OMAP4_IOPAD(0x11c, PIN_INPUT_PULLUP | MUX_MODE0) /* uart2_rx.uart2_rx */
OMAP4_IOPAD(0x11e, PIN_OUTPUT | MUX_MODE0) /* uart2_tx.uart2_tx */
>;
};
/* wl12xx GPIO output: WLAN_IRQ */
wl12xx_gpio: pinmux_wl12xx_gpio {
pinctrl-single,pins = <
OMAP4_IOPAD(0x07a, PIN_OUTPUT | MUX_MODE3) /* gpmc_ncs3.gpio_53 */
>;
};
/* wl12xx GPIO inputs and WLAN_EN */
wl12xx_pins: pinmux_wl12xx_pins {
pinctrl-single,pins = <
OMAP4_IOPAD(0x07c, PIN_INPUT | MUX_MODE3) /* gpmc_nwp.gpio_54 */
OMAP4_IOPAD(0x148, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_clk.sdmmc5_clk */
OMAP4_IOPAD(0x14a, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_cmd.sdmmc5_cmd */
OMAP4_IOPAD(0x14c, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat0.sdmmc5_dat0 */
OMAP4_IOPAD(0x14e, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat1.sdmmc5_dat1 */
OMAP4_IOPAD(0x150, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat2.sdmmc5_dat2 */
OMAP4_IOPAD(0x152, PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc5_dat3.sdmmc5_dat3 */
>;
};
...
};
...
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&uart2_pins>;
status = "okay";
};
&mmc5 {
pinctrl-names = "default";
pinctrl-0 = <&wl12xx_pins>;
status = "okay";
vmmc-supply = <&wl12xx_vmmc>;
non-removable;
bus-width = <4>;
cap-power-off-card;
#address-cells = <1>;
#size-cells = <0>;
wlcore: wlcore@2 {
compatible = "ti,wl1271";
reg = <2>;
interrupt-parent = <&gpio2>;
interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* gpio 53 */
ref-clock-frequency = <38400000>;
/*tcxo-clock-frequency = <26000000>;*/
};
};Issues:
- wl12xx modules do not get loaded.
- cfg80211 fails to load regulatory.db
5.11.0 dmesg
[ 5.221221] reg-fixed-voltage wl12xx_vmmc: GPIO lookup for consumer (null) [ 5.230529] reg-fixed-voltage wl12xx_vmmc: using device tree for GPIO lookup [ 5.246887] of_get_named_gpiod_flags: can't parse 'gpios' property of node '/wl12xx_vmmc[0]' [ 5.256683] of_get_named_gpiod_flags: parsed 'gpio' property of node '/wl12xx_vmmc[0]' - status (0) [ 5.274414] vwl1271: 1800 mV, disabled [ 5.274414] reg-fixed-voltage wl12xx_vmmc: vwl1271 supplying 1800000uV ... [ 36.961303] vwl1271: disabling
mj-sakellaropoulos
Resources:
arch/arm/boot/dts/omap4-var-som-om44-wlan.dtsiBased off board files, the kindle fire will share many similarities to 4430 SDP. In short, the following modifications will need to be made:
GPIO_WIFI_PMENA: 54 GPIO_WIFI_IRQ: 53