arch/arm/boot/dts/bcm2835.dtsi

   1 /include/ "skeleton.dtsi"
   2
   3 / {
   4         compatible = "brcm,bcm2835";
   5         model = "BCM2835";
   6         interrupt-parent = <&intc>;
   7
   8         chosen {
   9                 bootargs = "earlyprintk console=ttyAMA0";
  10         };
  11
  12         soc {
  13                 compatible = "simple-bus";
  14                 #address-cells = <1>;
  15                 #size-cells = <1>;
  16                 ranges = <0x7e000000 0x20000000 0x02000000>;
  17
  18                 timer {
  19                         compatible = "brcm,bcm2835-system-timer";
  20                         reg = <0x7e003000 0x1000>;
  21                         interrupts = <1 0>, <1 1>, <1 2>, <1 3>;
  22                         clock-frequency = <1000000>;
  23                 };
  24
  25                 intc: interrupt-controller {
  26                         compatible = "brcm,bcm2835-armctrl-ic";
  27                         reg = <0x7e00b200 0x200>;
  28                         interrupt-controller;
  29                         #interrupt-cells = <2>;
  30                 };
  31
  32                 watchdog {
  33                         compatible = "brcm,bcm2835-pm-wdt";
  34                         reg = <0x7e100000 0x28>;
  35                 };
  36
  37                 uart@20201000 {
  38                         compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
  39                         reg = <0x7e201000 0x1000>;
  40                         interrupts = <2 25>;
  41                         clock-frequency = <3000000>;
  42                 };
  43
  44                 gpio: gpio {
  45                         compatible = "brcm,bcm2835-gpio";
  46                         reg = <0x7e200000 0xb4>;
  47                         /*
  48                          * The GPIO IP block is designed for 3 banks of GPIOs.
  49                          * Each bank has a GPIO interrupt for itself.
  50                          * There is an overall "any bank" interrupt.
  51                          * In order, these are GIC interrupts 17, 18, 19, 20.
  52                          * Since the BCM2835 only has 2 banks, the 2nd bank
  53                          * interrupt output appears to be mirrored onto the
  54                          * 3rd bank's interrupt signal.
  55                          * So, a bank0 interrupt shows up on 17, 20, and
  56                          * a bank1 interrupt shows up on 18, 19, 20!
  57                          */
  58                         interrupts = <2 17>, <2 18>, <2 19>, <2 20>;
  59
  60                         gpio-controller;
  61                         #gpio-cells = <2>;
  62
  63                         interrupt-controller;
  64                         #interrupt-cells = <2>;
  65                 };
  66
  67                 i2c0: i2c@20205000 {
  68                         compatible = "brcm,bcm2835-i2c";
  69                         reg = <0x7e205000 0x1000>;
  70                         interrupts = <2 21>;
  71                         clocks = <&clk_i2c>;
  72                         status = "disabled";
  73                 };
  74
  75                 i2c1: i2c@20804000 {
  76                         compatible = "brcm,bcm2835-i2c";
  77                         reg = <0x7e804000 0x1000>;
  78                         interrupts = <2 21>;
  79                         clocks = <&clk_i2c>;
  80                         status = "disabled";
  81                 };
  82
  83                 sdhci: sdhci {
  84                         compatible = "brcm,bcm2835-sdhci";
  85                         reg = <0x7e300000 0x100>;
  86                         interrupts = <2 30>;
  87                         clocks = <&clk_mmc>;
  88                         status = "disabled";
  89                 };
  90         };
  91
  92         clocks {
  93                 compatible = "simple-bus";
  94                 #address-cells = <1>;
  95                 #size-cells = <0>;
  96
  97                 clk_mmc: mmc {
  98                         compatible = "fixed-clock";
  99                         reg = <0>;
 100                         #clock-cells = <0>;
 101                         clock-frequency = <100000000>;
 102                 };
 103
 104                 clk_i2c: i2c {
 105                         compatible = "fixed-clock";
 106                         reg = <1>;
 107                         #clock-cells = <0>;
 108                         clock-frequency = <250000000>;
 109                 };
 110         };
 111 };