[ARM] add Marvell Kirkwood (88F6000) SoC support

The Marvell Kirkwood (88F6000) is a family of ARM SoCs based on a
Shiva CPU core, and features a DDR2 controller, a x1 PCIe interface,
a USB 2.0 interface, a SPI controller, a crypto accelerator, a TS
interface, and IDMA/XOR engines, and depending on the model, also
features one or two Gigabit Ethernet interfaces, two SATA II
interfaces, one or two TWSI interfaces, one or two UARTs, a
TDM/SLIC interface, a NAND controller, an I2S/SPDIF interface, and
an SDIO interface.

This patch adds supports for the Marvell DB-88F6281-BP Development
Board and the RD-88F6192-NAS and the RD-88F6281 Reference Designs,
enabling support for the PCIe interface, the USB interface, the
ethernet interfaces, the SATA interfaces, the TWSI interfaces, the
UARTs, and the NAND controller.

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
new file mode 100644
index 0000000..5dee2f6
--- /dev/null
+++ b/arch/arm/mach-kirkwood/common.h
@@ -0,0 +1,42 @@
+/*
+ * arch/arm/mach-kirkwood/common.h
+ *
+ * Core functions for Marvell Kirkwood SoCs
+ *
+ * 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 __ARCH_KIRKWOOD_COMMON_H
+#define __ARCH_KIRKWOOD_COMMON_H
+
+struct mv643xx_eth_platform_data;
+struct mv_sata_platform_data;
+
+/*
+ * Basic Kirkwood init functions used early by machine-setup.
+ */
+void kirkwood_map_io(void);
+void kirkwood_init(void);
+void kirkwood_init_irq(void);
+
+extern struct mbus_dram_target_info kirkwood_mbus_dram_info;
+void kirkwood_setup_cpu_mbus(void);
+void kirkwood_setup_pcie_io_win(int window, u32 base, u32 size,
+				int maj, int min);
+void kirkwood_setup_pcie_mem_win(int window, u32 base, u32 size,
+				 int maj, int min);
+
+void kirkwood_ehci_init(void);
+void kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data);
+void kirkwood_pcie_init(void);
+void kirkwood_rtc_init(void);
+void kirkwood_sata_init(struct mv_sata_platform_data *sata_data);
+void kirkwood_uart0_init(void);
+void kirkwood_uart1_init(void);
+
+extern struct sys_timer kirkwood_timer;
+
+
+#endif