[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/include/asm-arm/arch-loki/loki.h b/include/asm-arm/arch-loki/loki.h
new file mode 100644
index 0000000..5dd05ee
--- /dev/null
+++ b/include/asm-arm/arch-loki/loki.h
@@ -0,0 +1,97 @@
+/*
+ * include/asm-arm/arch-loki/loki.h
+ *
+ * Generic definitions for Marvell Loki (88RC8480) SoC flavors
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_LOKI_H
+#define __ASM_ARCH_LOKI_H
+
+/*
+ * Marvell Loki (88RC8480) address maps.
+ *
+ * phys
+ * d0000000	on-chip peripheral registers
+ * e0000000	PCIe 0 Memory space
+ * e8000000	PCIe 1 Memory space
+ * f0000000	PCIe 0 I/O space
+ * f0100000	PCIe 1 I/O space
+ *
+ * virt		phys		size
+ * fed00000	d0000000	1M	on-chip peripheral registers
+ * fee00000	f0000000	64K	PCIe 0 I/O space
+ * fef00000	f0100000	64K	PCIe 1 I/O space
+ */
+
+#define LOKI_REGS_PHYS_BASE		0xd0000000
+#define LOKI_REGS_VIRT_BASE		0xfed00000
+#define LOKI_REGS_SIZE			SZ_1M
+
+#define LOKI_PCIE0_IO_PHYS_BASE		0xf0000000
+#define LOKI_PCIE0_IO_VIRT_BASE		0xfee00000
+#define LOKI_PCIE0_IO_BUS_BASE		0x00000000
+#define LOKI_PCIE0_IO_SIZE		SZ_64K
+
+#define LOKI_PCIE1_IO_PHYS_BASE		0xf0100000
+#define LOKI_PCIE1_IO_VIRT_BASE		0xfef00000
+#define LOKI_PCIE1_IO_BUS_BASE		0x00000000
+#define LOKI_PCIE1_IO_SIZE		SZ_64K
+
+#define LOKI_PCIE0_MEM_PHYS_BASE	0xe0000000
+#define LOKI_PCIE0_MEM_SIZE		SZ_128M
+
+#define LOKI_PCIE1_MEM_PHYS_BASE	0xe8000000
+#define LOKI_PCIE1_MEM_SIZE		SZ_128M
+
+/*
+ * Register Map
+ */
+#define DEV_BUS_PHYS_BASE	(LOKI_REGS_PHYS_BASE | 0x10000)
+#define DEV_BUS_VIRT_BASE	(LOKI_REGS_VIRT_BASE | 0x10000)
+#define  UART0_PHYS_BASE	(DEV_BUS_PHYS_BASE | 0x2000)
+#define  UART0_VIRT_BASE	(DEV_BUS_VIRT_BASE | 0x2000)
+#define  UART1_PHYS_BASE	(DEV_BUS_PHYS_BASE | 0x2100)
+#define  UART1_VIRT_BASE	(DEV_BUS_VIRT_BASE | 0x2100)
+
+#define BRIDGE_VIRT_BASE	(LOKI_REGS_VIRT_BASE | 0x20000)
+#define  BRIDGE_REG(x)		(BRIDGE_VIRT_BASE | (x))
+#define  RSTOUTn_MASK		(BRIDGE_VIRT_BASE | 0x0108)
+#define   SOFT_RESET_OUT_EN	0x00000004
+#define  SYSTEM_SOFT_RESET	(BRIDGE_VIRT_BASE | 0x010c)
+#define   SOFT_RESET		0x00000001
+#define  BRIDGE_CAUSE		(BRIDGE_VIRT_BASE | 0x0110)
+#define  BRIDGE_MASK		(BRIDGE_VIRT_BASE | 0x0114)
+#define   BRIDGE_INT_TIMER0	0x0002
+#define   BRIDGE_INT_TIMER1	0x0004
+#define   BRIDGE_INT_TIMER1_CLR	0x0004
+#define  IRQ_VIRT_BASE		(BRIDGE_VIRT_BASE | 0x0200)
+#define   IRQ_CAUSE_OFF		0x0000
+#define   IRQ_MASK_OFF		0x0004
+#define  TIMER_VIRT_BASE	(BRIDGE_VIRT_BASE | 0x0300)
+
+#define PCIE0_VIRT_BASE		(LOKI_REGS_VIRT_BASE | 0x30000)
+
+#define PCIE1_VIRT_BASE		(LOKI_REGS_VIRT_BASE | 0x40000)
+
+#define SAS0_PHYS_BASE		(LOKI_REGS_PHYS_BASE | 0x80000)
+
+#define SAS1_PHYS_BASE		(LOKI_REGS_PHYS_BASE | 0x90000)
+
+#define GE0_PHYS_BASE		(LOKI_REGS_PHYS_BASE | 0xa0000)
+#define GE0_VIRT_BASE		(LOKI_REGS_VIRT_BASE | 0xa0000)
+
+#define GE1_PHYS_BASE		(LOKI_REGS_PHYS_BASE | 0xb0000)
+#define GE1_VIRT_BASE		(LOKI_REGS_VIRT_BASE | 0xb0000)
+
+#define DDR_VIRT_BASE		(LOKI_REGS_VIRT_BASE | 0xf0000)
+#define DDR_REG(x)		(DDR_VIRT_BASE | (x))
+
+
+#define GPIO_MAX		8
+
+
+#endif