arch/arm/boot/dts/ste-nomadik-s8815.dts

   1 /*
   2  * Device Tree for the ST-Ericsson Nomadik S8815 board
   3  * Produced by Calao Systems
   4  */
   5
   6 /dts-v1/;
   7 #include <dt-bindings/interrupt-controller/irq.h>
   8 #include "ste-nomadik-stn8815.dtsi"
   9
  10 / {
  11         model = "Calao Systems USB-S8815";
  12         compatible = "calaosystems,usb-s8815";
  13
  14         chosen {
  15                 bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
  16         };
  17
  18         aliases {
  19                 serial0 = &uart0;
  20                 serial1 = &uart1;
  21         };
  22
  23         gpio3: gpio@101e7000 {
  24                 /* This hog will bias the MMC/SD card detect line */
  25                 mmcsd-gpio {
  26                         gpio-hog;
  27                         gpios = <16 0x0>;
  28                         output-low;
  29                         line-name = "card detect bias";
  30                 };
  31         };
  32
  33         src@101e0000 {
  34                 /* These chrystal drivers are not used on this board */
  35                 disable-sxtalo;
  36                 disable-mxtalo;
  37         };
  38
  39         pinctrl {
  40                 /* Hog CD pins */
  41                 pinctrl-names = "default";
  42                 pinctrl-0 = <&cd_default_mode>;
  43
  44                 uart0 {
  45                         /* Only use RX/TX pins */
  46                         uart0_s8815_mode: uart0_mux {
  47                                 u0_default_mux {
  48                                         function = "u0";
  49                                         groups = "u0txrx_a_1";
  50                                 };
  51                         };
  52                 };
  53                 mmcsd-cd {
  54                         cd_default_mode: cd_default {
  55                                 cd_default_cfg1 {
  56                                         /* CD input GPIO */
  57                                         pins = "GPIO111_H21";
  58                                         ste,input = <0>;
  59                                 };
  60                                 cd_default_cfg2 {
  61                                         /* CD GPIO biasing */
  62                                         pins = "GPIO112_J21";
  63                                         ste,output = <0>;
  64                                 };
  65                         };
  66                 };
  67                 gpioi2c {
  68                         gpioi2c_default_mode: gpioi2c_default {
  69                                 gpioi2c_default_cfg {
  70                                         pins = "GPIO73_C21", "GPIO74_C20";
  71                                         ste,input = <0>;
  72                                 };
  73                         };
  74                 };
  75                 user-led {
  76                         user_led_default_mode: user_led_default {
  77                                 user_led_default_cfg {
  78                                         pins = "GPIO2_C5";
  79                                         ste,output = <1>;
  80                                 };
  81                         };
  82                 };
  83                 user-button {
  84                         user_button_default_mode: user_button_default {
  85                                 user_button_default_cfg {
  86                                         pins = "GPIO3_A4";
  87                                         ste,input = <0>;
  88                                 };
  89                         };
  90                 };
  91         };
  92
  93         /* Ethernet */
  94         external-bus@34000000 {
  95                 compatible = "simple-bus";
  96                 reg = <0x34000000 0x1000000>;
  97                 #address-cells = <1>;
  98                 #size-cells = <1>;
  99                 ranges = <0 0x34000000 0x1000000>;
 100                 ethernet@300 {
 101                         compatible = "smsc,lan91c111";
 102                         reg = <0x300 0x0fd00>;
 103                         interrupt-parent = <&gpio3>;
 104                         interrupts = <8 IRQ_TYPE_EDGE_RISING>;
 105                 };
 106         };
 107
 108         /* GPIO I2C connected to the USB portions of the STw4811 only */
 109         gpio-i2c {
 110                 compatible = "i2c-gpio";
 111                 gpios = <&gpio2 10 0>, /* sda */
 112                         <&gpio2 9 0>; /* scl */
 113                 #address-cells = <1>;
 114                 #size-cells = <0>;
 115                 pinctrl-names = "default";
 116                 pinctrl-0 = <&gpioi2c_default_mode>;
 117
 118                 stw4811@2d {
 119                            compatible = "st,stw4811-usb";
 120                            reg = <0x2d>;
 121                 };
 122         };
 123
 124
 125         amba {
 126                 /* Activate RXTX on UART 0 */
 127                 uart0: uart@101fd000 {
 128                         pinctrl-names = "default";
 129                         pinctrl-0 = <&uart0_s8815_mode>;
 130                         status = "okay";
 131                 };
 132                 /* Configure card detect for the uSD slot */
 133                 mmcsd: sdi@101f6000 {
 134                         cd-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
 135                 };
 136         };
 137
 138         /* The user LED on the board is set up to be used for heartbeat */
 139         leds {
 140                 compatible = "gpio-leds";
 141                 user-led {
 142                         label = "user_led";
 143                         gpios = <&gpio0 2 0x1>;
 144                         default-state = "off";
 145                         linux,default-trigger = "heartbeat";
 146                         pinctrl-names = "default";
 147                         pinctrl-0 = <&user_led_default_mode>;
 148                 };
 149         };
 150
 151         /* User key mapped in as "escape" */
 152         gpio-keys {
 153                 compatible = "gpio-keys";
 154                 user-button {
 155                         label = "user_button";
 156                         gpios = <&gpio0 3 0x1>;
 157                         linux,code = <1>; /* KEY_ESC */
 158                         gpio-key,wakeup;
 159                         pinctrl-names = "default";
 160                         pinctrl-0 = <&user_button_default_mode>;
 161                 };
 162         };
 163 };