MIPS: NI 169445 board support

Support the National Instruments 169445 board.

Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com>
Acked-by: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/16782/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

3 files changed, 108 insertions, 0 deletions

diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index b9db49203e0c..cbac26ce063e 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -5,6 +5,7 @@ dts-dirs	+= ingenic
 dts-dirs        += lantiq
 dts-dirs        += mti
 dts-dirs        += netlogic
+dts-dirs        += ni
 dts-dirs        += pic32
 dts-dirs        += qca
 dts-dirs        += ralink
diff --git a/arch/mips/boot/dts/ni/169445.dts b/arch/mips/boot/dts/ni/169445.dts
new file mode 100644
index 000000000000..5389ef46c480
--- /dev/null
+++ b/arch/mips/boot/dts/ni/169445.dts
@@ -0,0 +1,100 @@
+/dts-v1/;
+
+/ {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "ni,169445";
+
+        cpus {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                cpu@0 {
+                        device_type = "cpu";
+                        compatible = "mti,mips14KEc";
+                        clocks = <&baseclk>;
+                        reg = <0>;
+                };
+        };
+
+        memory@0 {
+                device_type = "memory";
+                reg = <0x0 0x10000000>;
+        };
+
+        baseclk: baseclock {
+                compatible = "fixed-clock";
+                #clock-cells = <0>;
+                clock-frequency = <50000000>;
+        };
+
+        cpu_intc: interrupt-controller {
+                #address-cells = <0>;
+                compatible = "mti,cpu-interrupt-controller";
+                interrupt-controller;
+                #interrupt-cells = <1>;
+        };
+
+        ahb@1f300000 {
+                compatible = "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges = <0x0 0x1f300000 0x80FFF>;
+
+                gpio1: gpio@10 {
+                        compatible = "ni,169445-nand-gpio";
+                        reg = <0x10 0x4>;
+                        reg-names = "dat";
+                        gpio-controller;
+                        #gpio-cells = <2>;
+                };
+
+                gpio2: gpio@14 {
+                        compatible = "ni,169445-nand-gpio";
+                        reg = <0x14 0x4>;
+                        reg-names = "dat";
+                        gpio-controller;
+                        #gpio-cells = <2>;
+                        no-output;
+                };
+
+                nand@0 {
+                        compatible = "gpio-control-nand";
+                        nand-on-flash-bbt;
+                        nand-ecc-mode = "soft_bch";
+                        nand-ecc-step-size = <512>;
+                        nand-ecc-strength = <4>;
+                        reg = <0x0 4>;
+                        gpios = <&gpio2 0 0>, /* rdy */
+                                <&gpio1 1 0>, /* nce */
+                                <&gpio1 2 0>, /* ale */
+                                <&gpio1 3 0>, /* cle */
+                                <&gpio1 4 0>; /* nwp */
+                };
+
+                serial@80000 {
+                        compatible = "ns16550a";
+                        reg = <0x80000 0x1000>;
+                        interrupt-parent = <&cpu_intc>;
+                        interrupts = <6>;
+                        clocks = <&baseclk>;
+                        reg-shift = <0>;
+                };
+
+                ethernet@40000 {
+                        compatible = "snps,dwmac-4.10a";
+                        interrupt-parent = <&cpu_intc>;
+                        interrupts = <5>;
+                        interrupt-names = "macirq";
+                        reg = <0x40000 0x2000>;
+                        clock-names = "stmmaceth", "pclk";
+                        clocks = <&baseclk>, <&baseclk>;
+
+                        phy-mode = "rgmii";
+
+                        fixed-link {
+                                speed = <1000>;
+                                full-duplex;
+                        };
+                };
+        };
+};
diff --git a/arch/mips/boot/dts/ni/Makefile b/arch/mips/boot/dts/ni/Makefile
new file mode 100644
index 000000000000..66cfdffc51c2
--- /dev/null
+++ b/arch/mips/boot/dts/ni/Makefile
@@ -0,0 +1,7 @@
+dtb-$(CONFIG_FIT_IMAGE_FDT_NI169445)    += 169445.dtb
+
+# Force kbuild to make empty built-in.o if necessary
+obj-                                    += dummy.o
+
+always                                  := $(dtb-y)
+clean-files                             := *.dtb *.dtb.S