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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Device Tree for the ST-Ericsson Nomadik S8815 board
   4  * Produced by Calao Systems
   5  */
   6
   7 /dts-v1/;
   8 #include <dt-bindings/interrupt-controller/irq.h>
   9 #include "ste-nomadik-stn8815.dtsi"
  10
  11 / {
  12         model = "Calao Systems USB-S8815";
  13         compatible = "calaosystems,usb-s8815";
  14
  15         chosen {
  16                 bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
  17         };
  18
  19         aliases {
  20                 serial0 = &uart0;
  21                 serial1 = &uart1;
  22         };
  23
  24         gpio3: gpio@101e7000 {
  25                 /* This hog will bias the MMC/SD card detect line */
  26                 mmcsd-gpio {
  27                         gpio-hog;
  28                         gpios = <16 0x0>;
  29                         output-low;
  30                         line-name = "card detect bias";
  31                 };
  32         };
  33
  34         src@101e0000 {
  35                 /* These chrystal drivers are not used on this board */
  36                 disable-sxtalo;
  37                 disable-mxtalo;
  38         };
  39
  40         pinctrl {
  41                 /* Hog CD pins */
  42                 pinctrl-names = "default";
  43                 pinctrl-0 = <&cd_default_mode>;
  44
  45                 uart0 {
  46                         /* Only use RX/TX pins */
  47                         uart0_s8815_mode: uart0_mux {
  48                                 u0_default_mux {
  49                                         function = "u0";
  50                                         groups = "u0txrx_a_1";
  51                                 };
  52                         };
  53                 };
  54                 mmcsd-cd {
  55                         cd_default_mode: cd_default {
  56                                 cd_default_cfg1 {
  57                                         /* CD input GPIO */
  58                                         pins = "GPIO111_H21";
  59                                         ste,input = <0>;
  60                                 };
  61                                 cd_default_cfg2 {
  62                                         /* CD GPIO biasing */
  63                                         pins = "GPIO112_J21";
  64                                         ste,output = <0>;
  65                                 };
  66                         };
  67                 };
  68                 gpioi2c {
  69                         gpioi2c_default_mode: gpioi2c_default {
  70                                 gpioi2c_default_cfg {
  71                                         pins = "GPIO73_C21", "GPIO74_C20";
  72                                         ste,input = <0>;
  73                                 };
  74                         };
  75                 };
  76                 user-led {
  77                         user_led_default_mode: user_led_default {
  78                                 user_led_default_cfg {
  79                                         pins = "GPIO2_C5";
  80                                         ste,output = <1>;
  81                                 };
  82                         };
  83                 };
  84                 user-button {
  85                         user_button_default_mode: user_button_default {
  86                                 user_button_default_cfg {
  87                                         pins = "GPIO3_A4";
  88                                         ste,input = <0>;
  89                                 };
  90                         };
  91                 };
  92         };
  93
  94         /* Ethernet */
  95         external-bus@34000000 {
  96                 compatible = "simple-bus";
  97                 reg = <0x34000000 0x1000000>;
  98                 #address-cells = <1>;
  99                 #size-cells = <1>;
 100                 ranges = <0 0x34000000 0x1000000>;
 101                 ethernet@300 {
 102                         compatible = "smsc,lan91c111";
 103                         reg = <0x300 0x0fd00>;
 104                         interrupt-parent = <&gpio3>;
 105                         interrupts = <8 IRQ_TYPE_EDGE_RISING>;
 106                 };
 107         };
 108
 109         i2c1 {
 110                 lis3lv02dl@1d {
 111                         /* Accelerometer */
 112                         compatible = "st,lis3lv02dl-accel";
 113                         reg = <0x1d>;
 114                 };
 115         };
 116
 117         /* GPIO I2C connected to the USB portions of the STw4811 only */
 118         gpio-i2c {
 119                 compatible = "i2c-gpio";
 120                 gpios = <&gpio2 10 0>, /* sda */
 121                         <&gpio2 9 0>; /* scl */
 122                 #address-cells = <1>;
 123                 #size-cells = <0>;
 124                 pinctrl-names = "default";
 125                 pinctrl-0 = <&gpioi2c_default_mode>;
 126
 127                 stw4811@2d {
 128                            compatible = "st,stw4811-usb";
 129                            reg = <0x2d>;
 130                 };
 131         };
 132
 133
 134         amba {
 135                 /* Activate RXTX on UART 0 */
 136                 uart0: uart@101fd000 {
 137                         pinctrl-names = "default";
 138                         pinctrl-0 = <&uart0_s8815_mode>;
 139                         status = "okay";
 140                 };
 141                 /* Configure card detect for the uSD slot */
 142                 mmcsd: sdi@101f6000 {
 143                         cd-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
 144                 };
 145         };
 146
 147         /* The user LED on the board is set up to be used for heartbeat */
 148         leds {
 149                 compatible = "gpio-leds";
 150                 user-led {
 151                         label = "user_led";
 152                         gpios = <&gpio0 2 0x1>;
 153                         default-state = "off";
 154                         linux,default-trigger = "heartbeat";
 155                         pinctrl-names = "default";
 156                         pinctrl-0 = <&user_led_default_mode>;
 157                 };
 158         };
 159
 160         /* User key mapped in as "escape" */
 161         gpio-keys {
 162                 compatible = "gpio-keys";
 163                 user-button {
 164                         label = "user_button";
 165                         gpios = <&gpio0 3 0x1>;
 166                         linux,code = <1>; /* KEY_ESC */
 167                         wakeup-source;
 168                         pinctrl-names = "default";
 169                         pinctrl-0 = <&user_button_default_mode>;
 170                 };
 171         };
 172 };