On Fri, Jun 08, 2018 at 06:29:26AM -0500, Adam Ford wrote:
> Certain models of the AM3517 SOM from Logic PD come with an
> integrated WL1271 WiFi. This patch enables the WiFi.
I applied this patch, along with 'omap-for-v4.18/dt' patches for
AM3517-EVM, on top of 4.17, and the WL127x driver works for me.
Tested-by: Derald D. Woods <woods.technical@xxxxxxxxx>
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
>
> diff --git a/arch/arm/boot/dts/am3517-evm.dts b/arch/arm/boot/dts/am3517-evm.dts
> index 98aadb0f81c5..d7eb6ad76c29 100644
> --- a/arch/arm/boot/dts/am3517-evm.dts
> +++ b/arch/arm/boot/dts/am3517-evm.dts
> @@ -220,10 +220,6 @@
> cd-gpios = <&gpio4 31 GPIO_ACTIVE_HIGH>; /* gpio_127 */
> };
>
> -&mmc2 {
> - status = "disabled";
> -};
> -
> &mmc3 {
> status = "disabled";
> };
> diff --git a/arch/arm/boot/dts/am3517-som.dtsi b/arch/arm/boot/dts/am3517-som.dtsi
> index a6d5ff73c163..9ec784746aab 100644
> --- a/arch/arm/boot/dts/am3517-som.dtsi
> +++ b/arch/arm/boot/dts/am3517-som.dtsi
> @@ -14,6 +14,32 @@
> cpu0-supply = <&vdd_core_reg>;
> };
> };
> +
> + wl12xx_buffer: wl12xx_buf {
> + compatible = "regulator-fixed";
> + regulator-name = "wl1271_buf";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&wl12xx_buffer_pins>;
> + gpio = <&gpio5 1 GPIO_ACTIVE_LOW>; /* gpio 129 */
> + regulator-always-on;
> + vin-supply = <&vdd_1v8_reg>;
> + };
> +
> + wl12xx_vmmc2: wl12xx_vmmc2 {
> + compatible = "regulator-fixed";
> + regulator-name = "vwl1271";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&wl12xx_wkup_pins>;
> + gpio = <&gpio1 3 GPIO_ACTIVE_HIGH >; /* gpio 3 */
> + startup-delay-us = <70000>;
> + enable-active-high;
> + regulator-always-on;
> + vin-supply = <&wl12xx_buffer>;
> + };
> };
>
> &gpmc {
> @@ -126,8 +152,53 @@
> };
> };
>
> +&mmc2 {
> + interrupts-extended = <&intc 86 /* &omap3_pmx_core 0x12c */>;
> +
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc2_pins>;
> + vmmc-supply = <&wl12xx_vmmc2>;
> + 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 = <&gpio6>;
> + interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; /* gpio_170 */
> + ref-clock-frequency = <26000000>;
> + tcxo-clock-frequency = <26000000>;
> + };
> +};
> +
> +
> &omap3_pmx_core {
>
> + wl12xx_buffer_pins: pinmux_wl12xx_buffer_pins {
> + pinctrl-single,pins = <
> + OMAP3_CORE1_IOPAD(0x2156, PIN_OUTPUT | MUX_MODE4) /* mmc1_dat7.gpio_129 */
> + >;
> + };
> +
> + mmc2_pins: pinmux_mmc2_pins {
> + pinctrl-single,pins = <
> + OMAP3_CORE1_IOPAD(0x2158, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc2_clk.mmc2_clk */
> + OMAP3_CORE1_IOPAD(0x215a, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc2_cmd.mmc2_cmd */
> + OMAP3_CORE1_IOPAD(0x215c, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc2_dat0.mmc2_dat0 */
> + OMAP3_CORE1_IOPAD(0x215e, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc2_dat1.mmc2_dat1 */
> + OMAP3_CORE1_IOPAD(0x2160, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc2_dat2.mmc2_dat2 */
> + OMAP3_CORE1_IOPAD(0x2162, PIN_INPUT_PULLUP | MUX_MODE0) /* mmc2_dat3.mmc2_dat3 */
> + OMAP3_CORE1_IOPAD(0x2164, PIN_OUTPUT | MUX_MODE1) /* mmc2_dat4.mmc2_dir_dat0 */
> + OMAP3_CORE1_IOPAD(0x2166, PIN_OUTPUT | MUX_MODE1) /* mmc2_dat5.mmc2_dir_dat1 */
> + OMAP3_CORE1_IOPAD(0x2168, PIN_OUTPUT | MUX_MODE1) /* mmc2_dat6.mmc2_dir_cmd */
> + OMAP3_CORE1_IOPAD(0x216a, PIN_INPUT | MUX_MODE1) /* mmc2_dat7.mmc2_clkin */
> + OMAP3_CORE1_IOPAD(0x21c6, PIN_INPUT_PULLUP | MUX_MODE4) /* hdq_sio.gpio_170 */
> + >;
> + };
> +
> rtc_pins: pinmux_rtc_pins {
> pinctrl-single,pins = <
> OMAP3_CORE1_IOPAD(0x20b6, PIN_INPUT_PULLUP | MUX_MODE4) /* gpmc_ncs4.gpio_55 */
> @@ -140,3 +211,12 @@
> >;
> };
> };
> +
> +&omap3_pmx_wkup {
> +
> + wl12xx_wkup_pins: pinmux_wl12xx_wkup_pins {
> + pinctrl-single,pins = <
> + OMAP3_WKUP_IOPAD(0x2a0c, PIN_OUTPUT | MUX_MODE4) /* sys_boot1.gpio_3 */
> + >;
> + };
> +};
> --
> 2.17.1
>
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