On 14/04/22 19:06, Aparna M wrote:
> From: Kishon Vijay Abraham I <kishon@xxxxxx>
>
> WL1837 module is connected to SDHCI0 in AM642 SK. Enable it here.
> This will enable the WiFi functionaliy on the board.
>
> Signed-off-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
> Signed-off-by: Nikhil Devshatwar <nikhil.nd@xxxxxx>
> Signed-off-by: Aparna M <a-m1@xxxxxx>
Tested-by: Devarsh Thakkar <devarsht@xxxxxx>
> ---
>
> v3 RESEND: rebased on top of v5.18-rc2
> v2 -> v3: Use generic node names for the regulators as per DT Specs
> v1 -> v2: Add "From" tag in commit message
>
> arch/arm64/boot/dts/ti/k3-am642-sk.dts | 62 ++++++++++++++++++++++++++
> 1 file changed, 62 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index 1d7db8bf3a5c..59f506cbd275 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -125,6 +125,31 @@
> vin-supply = <&vcc_3v3_sys>;
> gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
> };
> +
> + com8_ls_en: regulator-1 {
> + compatible = "regulator-fixed";
> + regulator-name = "com8_ls_en";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> + regulator-boot-on;
> + pinctrl-0 = <&main_com8_ls_en_pins_default>;
> + pinctrl-names = "default";
> + gpio = <&main_gpio0 62 GPIO_ACTIVE_LOW>;
> + };
> +
> + wlan_en: regulator-2 {
> + /* output of SN74AVC4T245RSVR */
> + compatible = "regulator-fixed";
> + regulator-name = "wlan_en";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + enable-active-high;
> + pinctrl-0 = <&main_wlan_en_pins_default>;
> + pinctrl-names = "default";
> + vin-supply = <&com8_ls_en>;
> + gpio = <&main_gpio0 48 GPIO_ACTIVE_HIGH>;
> + };
> };
>
> &main_pmx0 {
> @@ -216,6 +241,23 @@
> AM64X_IOPAD(0x0270, PIN_INPUT, 0) /* (D18) ECAP0_IN_APWM_OUT */
> >;
> };
> + main_wlan_en_pins_default: main-wlan-en-pins-default {
> + pinctrl-single,pins = <
> + AM64X_IOPAD(0x00c4, PIN_OUTPUT_PULLUP, 7) /* (V8) GPIO0_48 */
> + >;
> + };
> +
> + main_com8_ls_en_pins_default: main-com8-ls-en-pins-default {
> + pinctrl-single,pins = <
> + AM64X_IOPAD(0x00fc, PIN_OUTPUT, 7) /* (U7) PRG1_PRU0_GPO17.GPIO0_62 */
> + >;
> + };
> +
> + main_wlan_pins_default: main-wlan-pins-default {
> + pinctrl-single,pins = <
> + AM64X_IOPAD(0x00bc, PIN_INPUT, 7) /* (U8) GPIO0_46 */
> + >;
> + };
> };
>
> &mcu_uart0 {
> @@ -293,6 +335,26 @@
> status = "reserved";
> };
>
> +&sdhci0 {
> + vmmc-supply = <&wlan_en>;
> + bus-width = <4>;
> + non-removable;
> + cap-power-off-card;
> + keep-power-in-suspend;
> + ti,driver-strength-ohm = <50>;
> +
> + #address-cells = <1>;
> + #size-cells = <0>;
> + wlcore: wlcore@2 {
> + compatible = "ti,wl1837";
> + reg = <2>;
> + pinctrl-0 = <&main_wlan_pins_default>;
> + pinctrl-names = "default";
> + interrupt-parent = <&main_gpio0>;
> + interrupts = <46 IRQ_TYPE_EDGE_FALLING>;
> + };
> +};
> +
> &sdhci1 {
> /* SD/MMC */
> vmmc-supply = <&vdd_mmc1>;
