[ARM] add Marvell Loki (88RC8480) SoC support

The Marvell Loki (88RC8480) is an ARM SoC based on a Feroceon CPU
core running at between 400 MHz and 1.0 GHz, and features a 64 bit
DDR controller, 512K of internal SRAM, two x4 PCI-Express ports,
two Gigabit Ethernet ports, two 4x SAS/SATA controllers, two UARTs,
two TWSI controllers, and IDMA/XOR engines.

This patch adds support for the Marvell LB88RC8480 Development
Board, enabling the use of the PCIe interfaces, the ethernet
interfaces, the TWSI interfaces and the UARTs.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/arch/arm/mach-loki/Makefile b/arch/arm/mach-loki/Makefile
new file mode 100644
index 0000000..d43233e
--- /dev/null
+++ b/arch/arm/mach-loki/Makefile
@@ -0,0 +1,3 @@
+obj-y				+= common.o addr-map.o irq.o
+
+obj-$(CONFIG_MACH_LB88RC8480)	+= lb88rc8480-setup.o