ARM: dts: cubox-i: add support for Broadcom Wifi/Bluetooth devices

Add DT support for the Broadcom Wifi/Bluetooth devices found on the
microsom board.

[Modified original Russell King's patch to use mmc-pwrseq]

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Jon Nettleton <jon@solid-run.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx6qdl-microsom.dtsi b/arch/arm/boot/dts/imx6qdl-microsom.dtsi
index 349f82be816eb77c0119cdeeba4eb424711b9bb0..ec6c7c7a406f0e27eae564b1b67a80f930f109f8 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-microsom.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-microsom.dtsi
@@ -39,15 +39,98 @@
  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  *     OTHER DEALINGS IN THE SOFTWARE.
  */
+#include <dt-bindings/gpio/gpio.h>
+/ {
+       clk_sdio: sdio-clock {
+               compatible = "gpio-gate-clock";
+               #clock-cells = <0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_microsom_brcm_osc>;
+               enable-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH>;
+       };
+
+       regulators {
+               compatible = "simple-bus";
+
+               reg_brcm: brcm-reg {
+                       compatible = "regulator-fixed";
+                       enable-active-high;
+                       gpio = <&gpio3 19 0>;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&pinctrl_microsom_brcm_reg>;
+                       regulator-name = "brcm_reg";
+                       regulator-min-microvolt = <3300000>;
+                       regulator-max-microvolt = <3300000>;
+                       startup-delay-us = <200000>;
+               };
+       };
+
+       usdhc1_pwrseq: usdhc1_pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>,
+                             <&gpio6 0 GPIO_ACTIVE_LOW>;
+               clocks = <&clk_sdio>;
+               clock-names = "ext_clock";
+       };
+};
 
 &iomuxc {
        microsom {
+               pinctrl_microsom_brcm_bt: microsom-brcm-bt {
+                       fsl,pins = <
+                               MX6QDL_PAD_CSI0_DAT14__GPIO6_IO00       0x40013070
+                               MX6QDL_PAD_CSI0_DAT15__GPIO6_IO01       0x40013070
+                               MX6QDL_PAD_CSI0_DAT18__GPIO6_IO04       0x40013070
+                       >;
+               };
+
+               pinctrl_microsom_brcm_osc: microsom-brcm-osc {
+                       fsl,pins = <
+                               MX6QDL_PAD_DISP0_DAT11__GPIO5_IO05      0x40013070
+                       >;
+               };
+
+               pinctrl_microsom_brcm_reg: microsom-brcm-reg {
+                       fsl,pins = <
+                               MX6QDL_PAD_EIM_D19__GPIO3_IO19          0x40013070
+                       >;
+               };
+
+               pinctrl_microsom_brcm_wifi: microsom-brcm-wifi {
+                       fsl,pins = <
+                               MX6QDL_PAD_GPIO_8__XTALOSC_REF_CLK_32K  0x1b0b0
+                               MX6QDL_PAD_CSI0_DATA_EN__GPIO5_IO20     0x40013070
+                               MX6QDL_PAD_CSI0_DAT8__GPIO5_IO26        0x40013070
+                               MX6QDL_PAD_CSI0_DAT9__GPIO5_IO27        0x40013070
+                       >;
+               };
+
                pinctrl_microsom_uart1: microsom-uart1 {
                        fsl,pins = <
                                MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA    0x1b0b1
                                MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA    0x1b0b1
                        >;
                };
+
+               pinctrl_microsom_uart4: microsom-uart4 {
+                       fsl,pins = <
+                               MX6QDL_PAD_CSI0_DAT12__UART4_TX_DATA 0x1b0b1
+                               MX6QDL_PAD_CSI0_DAT13__UART4_RX_DATA 0x1b0b1
+                               MX6QDL_PAD_CSI0_DAT16__UART4_RTS_B 0x1b0b1
+                               MX6QDL_PAD_CSI0_DAT17__UART4_CTS_B 0x1b0b1
+                       >;
+               };
+
+               pinctrl_microsom_usdhc1: microsom-usdhc1 {
+                       fsl,pins = <
+                               MX6QDL_PAD_SD1_CMD__SD1_CMD    0x17059
+                               MX6QDL_PAD_SD1_CLK__SD1_CLK    0x10059
+                               MX6QDL_PAD_SD1_DAT0__SD1_DATA0 0x17059
+                               MX6QDL_PAD_SD1_DAT1__SD1_DATA1 0x17059
+                               MX6QDL_PAD_SD1_DAT2__SD1_DATA2 0x17059
+                               MX6QDL_PAD_SD1_DAT3__SD1_DATA3 0x17059
+                       >;
+               };
        };
 };
 
@@ -56,3 +139,23 @@
        pinctrl-0 = <&pinctrl_microsom_uart1>;
        status = "okay";
 };
+
+/* UART4 - Connected to optional BRCM Wifi/BT/FM */
+&uart4 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_microsom_brcm_bt &pinctrl_microsom_uart4>;
+       fsl,uart-has-rtscts;
+       status = "okay";
+};
+
+/* USDHC1 - Connected to optional BRCM Wifi/BT/FM */
+&usdhc1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_microsom_brcm_wifi &pinctrl_microsom_usdhc1>;
+       bus-width = <4>;
+       mmc-pwrseq = <&usdhc1_pwrseq>;
+       keep-power-in-suspend;
+       non-removable;
+       vmmc-supply = <&reg_brcm>;
+       status = "okay";
+};