MIPS: generic: Add support for MIPSfpga

Add support for the MIPSfpga platform to generic kernel.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15846/
[jhogan@kernel.org: Use separate board-xilfpga.its.S. Add 32r2 and
 little endian requires to board-xilfpga.config]
Signed-off-by: James Hogan <jhogan@kernel.org>

5 files changed, 59 insertions, 1 deletions

diff --git a/arch/mips/boot/dts/xilfpga/Makefile b/arch/mips/boot/dts/xilfpga/Makefile
index 913a752a9ff1..bbf8fb6fe164 100644
--- a/arch/mips/boot/dts/xilfpga/Makefile
+++ b/arch/mips/boot/dts/xilfpga/Makefile
@@ -1,4 +1,4 @@
-dtb-$(CONFIG_XILFPGA_NEXYS4DDR) += nexys4ddr.dtb
+dtb-$(CONFIG_FIT_IMAGE_FDT_XILFPGA)     += nexys4ddr.dtb
 
 obj-y                           += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 
diff --git a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
index 09a62f2e2f8f..d351356c25b3 100644
--- a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
+++ b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
@@ -5,6 +5,14 @@
 / {
         compatible = "digilent,nexys4ddr";
 
+        aliases {
+                serial0 = &axi_uart16550;
+        };
+        chosen {
+                bootargs = "console=ttyS0,115200";
+                stdout-path = "serial0:115200n8";
+        };
+
         memory {
                 device_type = "memory";
                 reg = <0x0 0x08000000>;
diff --git a/arch/mips/configs/generic/board-xilfpga.config b/arch/mips/configs/generic/board-xilfpga.config
new file mode 100644
index 000000000000..9cce57385b03
--- /dev/null
+++ b/arch/mips/configs/generic/board-xilfpga.config
@@ -0,0 +1,22 @@
+# require CONFIG_CPU_MIPS32_R2=y
+# require CONFIG_CPU_LITTLE_ENDIAN=y
+
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_XILINX=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_FIT_IMAGE_FDT_XILFPGA=y
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_XILINX=y
+CONFIG_SENSORS_ADT7410=y
+CONFIG_TMPFS=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_NETDEVICES=y
+CONFIG_XILINX_EMACLITE=y
+CONFIG_SMSC_PHY=y
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index e0436aaf7f38..1f45ba436177 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -42,4 +42,10 @@ config FIT_IMAGE_FDT_NI169445
           Enable this to include the FDT for the 169445 platform from
           National Instruments in the FIT kernel image.
 
+config FIT_IMAGE_FDT_XILFPGA
+        bool "Include FDT for Xilfpga"
+        help
+          Enable this to include the FDT for the MIPSfpga platform
+          from Imagination Technologies in the FIT kernel image.
+
 endif
diff --git a/arch/mips/generic/board-xilfpga.its.S b/arch/mips/generic/board-xilfpga.its.S
new file mode 100644
index 000000000000..a2e773d3f14f
--- /dev/null
+++ b/arch/mips/generic/board-xilfpga.its.S
@@ -0,0 +1,22 @@
+/ {
+        images {
+                fdt@xilfpga {
+                        description = "MIPSfpga (xilfpga) Device Tree";
+                        data = /incbin/("boot/dts/xilfpga/nexys4ddr.dtb");
+                        type = "flat_dt";
+                        arch = "mips";
+                        compression = "none";
+                        hash@0 {
+                                algo = "sha1";
+                        };
+                };
+        };
+
+        configurations {
+                conf@xilfpga {
+                        description = "MIPSfpga Linux kernel";
+                        kernel = "kernel@0";
+                        fdt = "fdt@xilfpga";
+                };
+        };
+};