patches/kernel_patches/imx-3.10.53/0001-imx6q-sabresd-add-support-for-wilink8-wlan-and-bluet.patch

   1 From efde6f3653bd70a9cd92bfdf882ffc3fa2fbf442 Mon Sep 17 00:00:00 2001
   2 From: Eyal Reizer <eyalr@ti.com>
   3 Date: Wed, 4 Mar 2015 14:08:59 +0200
   4 Subject: [PATCH 01/12] imx6q-sabresd: add support for wilink8 wlan and
   5  bluetooth
   6
   7 * enable uart5 used for bluetooth with wilink8 with flow control
   8 * configure SD2 to be used for sdio communication to wilink8 wlan
   9 * configure gpios used for wlan/bt enables and wlan_irq
  10 * setup voltage regulator used for wl8 wlan power control
  11 * disable SPI1 as it pins are routed to J13 for connecting to wilink8
  12
  13 Signed-off-by: Eyal Reizer <eyalr@ti.com>
  14 ---
  15  arch/arm/boot/dts/imx6qdl-sabresd.dtsi |   56 ++++++++++++++++++++++++++++++--
  16  1 file changed, 53 insertions(+), 3 deletions(-)
  17
  18 diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
  19 index b5394f3..57b468a 100644
  20 --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
  21 +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
  22 @@ -22,6 +22,32 @@
  23                 reg = <0x10000000 0x40000000>;
  24         };
  25
  26 +       wlan_en_reg: fixedregulator@2 {
  27 +               compatible = "regulator-fixed";
  28 +               regulator-name = "wlan-en-regulator";
  29 +               regulator-min-microvolt = <1800000>;
  30 +               regulator-max-microvolt = <1800000>;
  31 +
  32 +               /* WLAN_EN GPIO for this board – Bank4, pin7 */
  33 +               gpio = <&gpio4 7 0>;
  34 +
  35 +               /* WLAN card specific delay */
  36 +               startup-delay-us = <70000>;
  37 +               enable-active-high;
  38 +       };
  39 +
  40 +        kim {
  41 +                compatible = "kim";
  42 +                nshutdown_gpio = <2>;  /* GPIO_2 */
  43 +                dev_name = "/dev/ttymxc4";
  44 +                flow_cntrl = <1>;
  45 +                baud_rate = <3000000>;
  46 +        };
  47 +
  48 +        btwilink {
  49 +                compatible = "btwilink";
  50 +        };
  51 +
  52         battery: max8903@0 {
  53                 compatible = "fsl,max8903-charger";
  54                 pinctrl-names = "default";
  55 @@ -253,6 +279,7 @@
  56         pu-supply = <&pu_dummy>; /* use pu_dummy if VDDSOC share with VDDPU */
  57  };
  58
  59 +/* the spi pins (inctrl_ecspi1_2) are used for connecting to WL8 using J13 so we disable it
  60  &ecspi1 {
  61         fsl,spi-num-chipselects = <1>;
  62         cs-gpios = <&gpio4 9 0>;
  63 @@ -268,6 +295,7 @@
  64                 reg = <0>;
  65         };
  66  };
  67 +*/
  68
  69  &fec {
  70         pinctrl-names = "default";
  71 @@ -506,6 +534,8 @@
  72                                 MX6QDL_PAD_GPIO_1__WDOG2_B 0x80000000
  73                                 MX6QDL_PAD_GPIO_2__GPIO1_IO02 0x80000000
  74                                 MX6QDL_PAD_SD1_CMD__GPIO1_IO18 0x80000000
  75 +                               MX6QDL_PAD_KEY_ROW0__GPIO4_IO07 0x13059 // reserve two pins wl8 gpio, this is pulled low at reset for WL_EN
  76 +                               MX6QDL_PAD_KEY_COL0__GPIO4_IO06 0x13059 // this is for WL_IRQ which driver will configure as an input with a pull down
  77                         >;
  78                 };
  79         };
  80 @@ -611,6 +641,15 @@
  81         status = "okay";
  82  };
  83
  84 +&uart5 {
  85 +       pinctrl-names = "default";
  86 +       pinctrl-0 = <&pinctrl_uart5_1>;
  87 +       status = "okay";
  88 +
  89 +       /* enable rts/cts usage on uart5 */
  90 +       fsl,uart-has-rtscts;
  91 +};
  92 +
  93  &usbh1 {
  94         vbus-supply = <&reg_usb_h1_vbus>;
  95         status = "okay";
  96 @@ -626,13 +665,24 @@
  97
  98  &usdhc2 {
  99         pinctrl-names = "default";
 100 -       pinctrl-0 = <&pinctrl_usdhc2_1>;
 101 -       cd-gpios = <&gpio2 2 0>;
 102 -       wp-gpios = <&gpio2 3 0>;
 103 +       pinctrl-0 = <&pinctrl_usdhc2_2>;
 104         no-1-8-v;
 105         keep-power-in-suspend;
 106         enable-sdio-wakeup;
 107 +       vmmc-supply = <&wlan_en_reg>;
 108 +       non-removable;    /* non-removable is not a variable, the fact it is */
 109 +                         /* listed is all that is used by driver  */
 110 +       cap-power-off-card;
 111         status = "okay";
 112 +       #address-cells = <1>;
 113 +       #size-cells = <0>;
 114 +       wlcore: wlcore@0 {
 115 +               compatible = "ti,wlcore";
 116 +               reg = <2>;
 117 +               interrupt-parent = <&gpio4>;
 118 +               interrupts = <6 0>;
 119 +               platform-quirks = <1>;
 120 +       };
 121  };
 122
 123  &usdhc3 {
 124 --
 125 1.7.9.5
 126