MIPS: xilfpga: Add xilfpga device tree files.

Add device tree files for the MIPSfpga platform.

See Documentation/devicetree/bindings/mips/img/xilfpga.txt
for details about MIPSfpga

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: robh+dt@kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/11362/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 77 insertions, 0 deletions

diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index 778a34028c1b..0571ef7697b0 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -6,6 +6,7 @@ dts-dirs	+= mti
 dts-dirs        += netlogic
 dts-dirs        += qca
 dts-dirs        += ralink
+dts-dirs        += xilfpga
 
 obj-y           := $(addsuffix /, $(dts-dirs))
 
diff --git a/arch/mips/boot/dts/xilfpga/Makefile b/arch/mips/boot/dts/xilfpga/Makefile
new file mode 100644
index 000000000000..913a752a9ff1
--- /dev/null
+++ b/arch/mips/boot/dts/xilfpga/Makefile
@@ -0,0 +1,9 @@
+dtb-$(CONFIG_XILFPGA_NEXYS4DDR) += nexys4ddr.dtb
+
+obj-y                           += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+
+# Force kbuild to make empty built-in.o if necessary
+obj-                            += dummy.o
+
+always                          := $(dtb-y)
+clean-files     := *.dtb *.dtb.S
diff --git a/arch/mips/boot/dts/xilfpga/microAptiv.dtsi b/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
new file mode 100644
index 000000000000..81d518e75785
--- /dev/null
+++ b/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
@@ -0,0 +1,21 @@
+/ {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "img,xilfpga";
+
+        cpus {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                cpu@0 {
+                        device_type = "cpu";
+                        compatible = "mips,m14Kc";
+                        clocks  = <&ext>;
+                        reg = <0>;
+                };
+        };
+
+        ext: ext {
+                compatible = "fixed-clock";
+                #clock-cells = <0>;
+        };
+};
diff --git a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
new file mode 100644
index 000000000000..686ebd11386d
--- /dev/null
+++ b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
@@ -0,0 +1,46 @@
+/dts-v1/;
+
+#include "microAptiv.dtsi"
+
+/ {
+        compatible = "digilent,nexys4ddr";
+
+        memory {
+                device_type = "memory";
+                reg = <0x0 0x08000000>;
+        };
+
+        cpuintc: interrupt-controller@0 {
+                #address-cells = <0>;
+                #interrupt-cells = <1>;
+                interrupt-controller;
+                compatible = "mti,cpu-interrupt-controller";
+        };
+
+        axi_gpio: gpio@10600000 {
+                #gpio-cells = <1>;
+                compatible = "xlnx,xps-gpio-1.00.a";
+                gpio-controller;
+                reg = <0x10600000 0x10000>;
+                xlnx,all-inputs = <0x0>;
+                xlnx,dout-default = <0x0>;
+                xlnx,gpio-width = <0x16>;
+                xlnx,interrupt-present = <0x0>;
+                xlnx,is-dual = <0x0>;
+                xlnx,tri-default = <0xffffffff>;
+        } ;
+
+        axi_uart16550: serial@10400000 {
+                compatible = "ns16550a";
+                reg = <0x10400000 0x10000>;
+
+                reg-shift = <2>;
+                reg-offset = <0x1000>;
+
+                clocks  = <&ext>;
+        };
+};
+
+&ext {
+        clock-frequency = <50000000>;
+};