[RFC PATCH] ARM: dts: rockchip: Add wifi support for firefly
Michael Trimarchi
michael at amarulasolutions.com
Fri Aug 7 07:12:05 PDT 2015
This patch enable wifi support for the firefly board.
Card answer to me that support from 2.0V but regulator is connected
to 1.8V, so voltage capability is wrong. In order to avoid this
we just defined a fixed regulator trigger by the wifi enable gpio
that report 2.0V.
Signed-off-by: Michael Trimarchi <michael at amarulasolutions.com>
---
arch/arm/boot/dts/rk3288-firefly.dtsi | 43 +++++++++++++++++++++++++++++++++--
1 file changed, 41 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/rk3288-firefly.dtsi b/arch/arm/boot/dts/rk3288-firefly.dtsi
index 0b42372..fcf234e 100644
--- a/arch/arm/boot/dts/rk3288-firefly.dtsi
+++ b/arch/arm/boot/dts/rk3288-firefly.dtsi
@@ -116,6 +116,28 @@
vin-supply = <&vcc_io>;
};
+ io_domains: io-domains {
+ compatible = "rockchip,rk3288-io-voltage-domain";
+ rockchip,grf = <&grf>;
+
+ wifi-supply = <&vcc_18>;
+ audio-supply = <&vcca_33>;
+ };
+
+ vcc_wifi: wifi-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio4 28 GPIO_ACTIVE_HIGH>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdio0_pwr>;
+ regulator-name = "vcc_wifi";
+ regulator-min-microvolt = <2000000>;
+ regulator-max-microvolt = <2000000>;
+ startup-delay-us = <100000>;
+ regulator-always-on;
+ vin-supply = <&vcc_io>;
+ };
+
vcc_flash: flash-regulator {
compatible = "regulator-fixed";
regulator-name = "vcc_flash";
@@ -437,13 +459,30 @@
&sdio0 {
broken-cd;
bus-width = <4>;
+ clock-freq-min-max = <400000 50000000>;
disable-wp;
non-removable;
+ cap-sd-highspeed;
num-slots = <1>;
pinctrl-names = "default";
- pinctrl-0 = <&sdio0_bus4>, <&sdio0_cmd>, <&sdio0_clk>;
- vmmc-supply = <&vcc_18>;
+ pinctrl-0 = <&sdio0_bus4>, <&sdio0_cmd>, <&sdio0_clk>, <&sdio0_int>;
+
+ sd-uhs-sdr50;
+ sd-uhs-sdr104;
+ sd-uhs-ddr50;
+ cap-sdio-irq;
+
+ vmmc-supply = <&vcc_wifi>;
status = "okay";
+
+ brcmf: bcrmf at 0 {
+ compatible = "brcm,bcm4329-fmac";
+ interrupt-parent = <&gpio4>;
+ reg = <0>;
+ interrupts = <30 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-names = "host-wake";
+ status = "okay";
+ };
};
&sdmmc {
--
1.9.1
More information about the Linux-rockchip
mailing list