Xilinx: ARM: adding device tree for ZC770 with DC1

This device supports the tested devices, SD, USB, Ethernet,
UART, Timer Counter, GIC. There are still some work arounds
for these devices so that u-boot is needed to make them
work.

1. Ethernet phy not updated in Linux yet, u-boot touches
the phy and makes it work.
2. The UART driver in Linux needs to clear any pending
interrupts before enabling them as the Boot ROM is causing
a bunch. This can lock up the Linux boot.
3. The USB needs to be taked out of reset with GPIO7.

diff --git a/arch/arm/boot/dts/zynq-zc770-dc1.dts b/arch/arm/boot/dts/zynq-zc770-dc1.dts
new file mode 100644 (file)
index 0000000..9334748
--- /dev/null
+++ b/arch/arm/boot/dts/zynq-zc770-dc1.dts
@@ -0,0 +1,86 @@
+/dts-v1/;
+
+/ {
+       model = "Xilinx Zynq ZC770 - V&C dt1 - minimum)";
+       compatible = "xlnx,zynq-zc770-xm010";
+       #address-cells = <0x1>;
+       #size-cells = <0x1>;
+       interrupt-parent = <0x1>;
+
+       memory {
+               device_type = "memory";
+               reg = <0x00000000 0x40000000>; 
+       };
+       chosen {
+               bootargs = "console=ttyPS0,115200 console=tty0 root=/dev/ram rw initrd=0x800000,8M earlyprintk ip=:::::eth0:dhcp"; 
+               linux,stdout-path = "/amba@0/uart@E0001000";
+       };
+
+       amba@0 {
+               compatible = "simple-bus";
+               #address-cells = <0x1>;
+               #size-cells = <0x1>;
+               ranges;
+
+               intc@f8f01000 {
+                       interrupt-controller;
+                       compatible = "arm,gic";
+                       reg = <0xf8f01000 0x1000>;
+                       #interrupt-cells = <0x2>;
+                       linux,phandle = <0x1>;
+                       phandle = <0x1>;
+               };
+
+               uart@e0001000 {
+                       compatible = "xlnx,ps7-uart-1.00.a";
+                       reg = <0xe0001000 0x1000>;
+                       interrupts = <0x52 0x0>;
+                       clock = <50000000>;
+               };
+
+               timer@0xf8001000 {
+                       compatible = "xlnx,ps7-ttc-1.00.a";
+                       reg = <0xf8001000 0x1000>;
+                       interrupts = <0x2a 0x0>;
+                       clock-frequency = <133000000>;
+               };
+
+               eth@e000b000 {
+                       compatible = "xlnx,ps7-ethernet-1.00.a";
+                       reg = <0xe000b000 0x1000>;
+                       interrupts = <0x36 0x0>;
+                       phy-handle = <0x2>;
+                       #address-cells = <0x1>;
+                       #size-cells = <0x0>;
+
+                       phy@23 {
+                               compatible = "marvell,88e1111";
+                               device_type = "ethernet-phy";
+                               reg = <0x7>;
+                               marvell,reg-init = <0x2 0x15 0x0 0x20>;
+                               linux,phandle = <0x2>;
+                               phandle = <0x2>;
+                       };
+               };
+
+               sdhci@e0100000 {
+                       compatible = "generic-sdhci";
+                       reg = <0xe0100000 0x1000>;
+                       interrupts = <0x38 0x0>;
+               };
+
+               usb@e0002000 {
+                       compatible = "xlnx,ps7-usb-1.00.a";
+                       reg = <0xe0002000 0x1000>;
+                       interrupts = <0x35 0x0>;
+                       dr_mode = "host";
+                       phy_type = "ulpi";
+               };
+
+               gpio@e000a000 {
+                       compatible = "xlnx,ps7-gpio-1.00.a";
+                       reg = <0xe000a000 0x1000>;
+                       interrupts = <0x34 0x0>;
+               };
+       };
+};