ARM64: dts: meson-gxbb-vega-s95: Add SD/SDIO/MMC and PWM nodes

All boards from the Tronsmart Vega S95 series are sharing similar MMC
based hardware.
sd_emmc_a is used to connect a Broadcom based SDIO wifi card (supported
by the brcmfmac driver). The 32.768KHz LPO clock for the wifi chip is
generated by PWM_E.
sd_emmc_b is routed to the SD-card. Unlike p20x there is no GPIO
regulator, meaning it only supports 3.3V (which seems to be hard-wired).
The eMMC chip is connected to sd_emmc_c and is implemented similar to
the meson-gxbb-p20x boards (meaning that hard-wired fixed regulators
are used).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index e93221a..e59ad30 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -65,6 +65,39 @@
                enable-active-high;
        };
 
+       vcc_3v3: regulator-vcc_3v3 {
+               compatible = "regulator-fixed";
+               regulator-name = "VCC_3V3";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+       };
+
+       vcc_1v8: regulator-vcc_1v8 {
+               compatible = "regulator-fixed";
+               regulator-name = "VCC_1V8";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+       };
+
+       emmc_pwrseq: emmc-pwrseq {
+               compatible = "mmc-pwrseq-emmc";
+               reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+       };
+
+       wifi32k: wifi32k {
+               compatible = "pwm-clock";
+               #clock-cells = <0>;
+               clock-frequency = <32768>;
+               pwms = <&pwm_ef 0 30518 0>; /* PWM_E at 32.768KHz */
+       };
+
+       sdio_pwrseq: sdio-pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>,
+                               <&gpio GPIOX_20 GPIO_ACTIVE_LOW>;
+               clocks = <&wifi32k>;
+               clock-names = "ext_clock";
+       };
 };
 
 &uart_AO {
@@ -102,3 +135,74 @@
 &usb1 {
        status = "okay";
 };
+
+/* Wireless SDIO Module */
+&sd_emmc_a {
+       status = "okay";
+       pinctrl-0 = <&sdio_pins &sdio_irq_pins>;
+       pinctrl-names = "default";
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       bus-width = <4>;
+       cap-sd-highspeed;
+       max-frequency = <100000000>;
+
+       non-removable;
+       disable-wp;
+
+       mmc-pwrseq = <&sdio_pwrseq>;
+
+       vmmc-supply = <&vcc_3v3>;
+       vqmmc-supply = <&vcc_1v8>;
+
+       brcmf: bcrmf@1 {
+               reg = <1>;
+               compatible = "brcm,bcm4329-fmac";
+       };
+};
+
+/* SD card */
+&sd_emmc_b {
+       status = "okay";
+       pinctrl-0 = <&sdcard_pins>;
+       pinctrl-names = "default";
+
+       bus-width = <4>;
+       cap-sd-highspeed;
+       max-frequency = <100000000>;
+       disable-wp;
+
+       cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
+       cd-inverted;
+
+       vmmc-supply = <&vcc_3v3>;
+};
+
+/* eMMC */
+&sd_emmc_c {
+       status = "okay";
+       pinctrl-0 = <&emmc_pins>;
+       pinctrl-names = "default";
+
+       bus-width = <8>;
+       cap-sd-highspeed;
+       cap-mmc-highspeed;
+       max-frequency = <200000000>;
+       non-removable;
+       disable-wp;
+       mmc-ddr-1_8v;
+       mmc-hs200-1_8v;
+
+       mmc-pwrseq = <&emmc_pwrseq>;
+       vmmc-supply = <&vcc_3v3>;
+       vmmcq-sumpply = <&vcc_1v8>;
+};
+
+&pwm_ef {
+       status = "okay";
+       pinctrl-0 = <&pwm_e_pins>;
+       pinctrl-names = "default";
+       clocks = <&clkc CLKID_FCLK_DIV4>;
+       clock-names = "clkin0";
+};