Pinephone Pro includes a AzureWave AW-CM256SM wifi (sdio0) and
bt (uart0) combo module, which is based on Cypress
CYP43455 (BCM43455).
The CYP43455 datasheet ("Power-Up Sequence and Timing") documents:
* needing to wait 10ms between consecutive WL_REG_ON toggles
* needing to wait 110ms between power-on and SDIO access.
Signed-off-by: Tom Fitzhenry <tom@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Ondřej Jirman <megi@xxxxxx>
---
Changes since v1:
* changed wifi power delays according to datasheet
* renamed sdio_pwrseq node to wifi_pwrseq
* reorder nodes alphabetically
---
.../dts/rockchip/rk3399-pinephone-pro.dts | 76 +++++++++++++++++++
1 file changed, 76 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index 2e058c315025..04403a76238b 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -81,6 +81,27 @@ vcc1v8_codec: vcc1v8-codec-regulator {
regulator-max-microvolt = <1800000>;
vin-supply = <&vcc3v3_sys>;
};
+
+ wifi_pwrseq: sdio-wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ clocks = <&rk818 1>;
+ clock-names = "ext_clock";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wifi_enable_h_pin>;
+ /*
+ * Wait between power-on and SDIO access for CYP43455
+ * POR circuit.
+ */
+ post-power-on-delay-ms = <110>;
+ /*
+ * Wait between consecutive toggles for CYP43455 CBUCK
+ * regulator discharge.
+ */
+ power-off-delay-us = <10000>;
+
+ /* WL_REG_ON on module */
+ reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
+ };
};
&cpu_l0 {
@@ -360,11 +381,45 @@ vsel2_pin: vsel2-pin {
};
};
+ sdio-pwrseq {
+ wifi_enable_h_pin: wifi-enable-h-pin {
+ rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+
sound {
vcc1v8_codec_en: vcc1v8-codec-en {
rockchip,pins = <3 RK_PA4 RK_FUNC_GPIO &pcfg_pull_down>;
};
};
+
+ wireless-bluetooth {
+ bt_wake_pin: bt-wake-pin {
+ rockchip,pins = <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ bt_host_wake_pin: bt-host-wake-pin {
+ rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+
+ bt_reset_pin: bt-reset-pin {
+ rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
+ };
+ };
+};
+
+&sdio0 {
+ bus-width = <4>;
+ cap-sd-highspeed;
+ cap-sdio-irq;
+ disable-wp;
+ keep-power-in-suspend;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ non-removable;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
+ sd-uhs-sdr104;
+ status = "okay";
};
&sdmmc {
@@ -393,6 +448,27 @@ &tsadc {
status = "okay";
};
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
+ uart-has-rtscts;
+ status = "okay";
+
+ bluetooth {
+ compatible = "brcm,bcm4345c5";
+ clocks = <&rk818 1>;
+ clock-names = "lpo";
+ device-wakeup-gpios = <&gpio2 RK_PD2 GPIO_ACTIVE_HIGH>;
+ host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
+ max-speed = <1500000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&bt_host_wake_pin &bt_wake_pin &bt_reset_pin>;
+ shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
+ vbat-supply = <&vcc3v3_sys>;
+ vddio-supply = <&vcc_1v8>;
+ };
+};
+
&uart2 {
status = "okay";
};
base-commit: b985063870727be3e94747b1c929219d04e77665
--
2.37.3
