[ARM] add Marvell 78xx0 ARM SoC support

The Marvell Discovery Duo (MV78xx0) is a family of ARM SoCs featuring
(depending on the model) one or two Feroceon CPU cores with 512K of L2
cache and VFP coprocessors running at (depending on the model) between
800 MHz and 1.2 GHz, and features a DDR2 controller, two PCIe
interfaces that can each run either in x4 or quad x1 mode, three USB
2.0 interfaces, two 3Gb/s SATA II interfaces, a SPI interface, two
TWSI interfaces, a crypto accelerator, IDMA/XOR engines, a SPI
interface, four UARTs, and depending on the model, two or four gigabit
ethernet interfaces.

This patch adds basic support for the platform, and allows booting
on the MV78x00 development board, with functional UARTs, SATA, PCIe,
GigE and USB ports.

Signed-off-by: Stanislav Samsonov <samsonov@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>

12 files changed, 1420 insertions, 2 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3535cae73d2..5bf60d5897d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -388,6 +388,16 @@ config ARCH_LOKI
 	help
 	  Support for the Marvell Loki (88RC8480) SoC.
 
+config ARCH_MV78XX0
+	bool "Marvell MV78xx0"
+	select PCI
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	select PLAT_ORION
+	help
+	  Support for the following Marvell MV78xx0 series SoCs:
+	  MV781x0, MV782x0.
+
 config ARCH_MXC
 	bool "Freescale MXC/iMX-based"
 	select ARCH_MTD_XIP
@@ -528,6 +538,8 @@ source "arch/arm/mach-ixp23xx/Kconfig"
 
 source "arch/arm/mach-loki/Kconfig"
 
+source "arch/arm/mach-mv78xx0/Kconfig"
+
 source "arch/arm/mach-pxa/Kconfig"
 
 source "arch/arm/mach-sa1100/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 1459b3849c8..b53237bb6f1 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -142,6 +142,7 @@ endif
  machine-$(CONFIG_ARCH_ORION5X)	   := orion5x
  machine-$(CONFIG_ARCH_MSM7X00A)   := msm
  machine-$(CONFIG_ARCH_LOKI)       := loki
+ machine-$(CONFIG_ARCH_MV78XX0)    := mv78xx0
 
 ifeq ($(CONFIG_ARCH_EBSA110),y)
 # This is what happens if you forget the IOCS16 line.
diff --git a/arch/arm/mach-mv78xx0/Kconfig b/arch/arm/mach-mv78xx0/Kconfig
new file mode 100644
index 00000000000..d83cb86837d
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/Kconfig
@@ -0,0 +1,13 @@
+if ARCH_MV78XX0
+
+menu "Marvell MV78xx0 Implementations"
+
+config MACH_DB78X00_BP
+	bool "Marvell DB-78x00-BP Development Board"
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell DB-78x00-BP Development Board.
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-mv78xx0/Makefile b/arch/arm/mach-mv78xx0/Makefile
new file mode 100644
index 00000000000..ec16c05c3b1
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/Makefile
@@ -0,0 +1,2 @@
+obj-y				+= common.o addr-map.o irq.o pcie.o
+obj-$(CONFIG_MACH_DB78X00_BP)	+= db78x00-bp-setup.o
diff --git a/arch/arm/mach-mv78xx0/Makefile.boot b/arch/arm/mach-mv78xx0/Makefile.boot
new file mode 100644
index 00000000000..67039c3e0c4
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/Makefile.boot
@@ -0,0 +1,3 @@
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
diff --git a/arch/arm/mach-mv78xx0/addr-map.c b/arch/arm/mach-mv78xx0/addr-map.c
new file mode 100644
index 00000000000..4004b672a2e
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/addr-map.c
@@ -0,0 +1,156 @@
+/*
+ * arch/arm/mach-mv78xx0/addr-map.c
+ *
+ * Address map functions for Marvell MV78xx0 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mbus.h>
+#include <asm/io.h>
+#include "common.h"
+
+/*
+ * Generic Address Decode Windows bit settings
+ */
+#define TARGET_DDR		0
+#define TARGET_DEV_BUS		1
+#define TARGET_PCIE0		4
+#define TARGET_PCIE1		8
+#define TARGET_PCIE(i)		((i) ? TARGET_PCIE1 : TARGET_PCIE0)
+#define ATTR_DEV_SPI_ROM	0x1f
+#define ATTR_DEV_BOOT		0x2f
+#define ATTR_DEV_CS3		0x37
+#define ATTR_DEV_CS2		0x3b
+#define ATTR_DEV_CS1		0x3d
+#define ATTR_DEV_CS0		0x3e
+#define ATTR_PCIE_IO(l)		(0xf0 & ~(0x10 << (l)))
+#define ATTR_PCIE_MEM(l)	(0xf8 & ~(0x10 << (l)))
+
+/*
+ * Helpers to get DDR bank info
+ */
+#define DDR_BASE_CS_OFF(n)	(0x0000 + ((n) << 3))
+#define DDR_SIZE_CS_OFF(n)	(0x0004 + ((n) << 3))
+
+/*
+ * CPU Address Decode Windows registers
+ */
+#define WIN0_OFF(n)		(BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4))
+#define WIN8_OFF(n)		(BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4))
+#define WIN_CTRL_OFF		0x0000
+#define WIN_BASE_OFF		0x0004
+#define WIN_REMAP_LO_OFF	0x0008
+#define WIN_REMAP_HI_OFF	0x000c
+
+
+struct mbus_dram_target_info mv78xx0_mbus_dram_info;
+
+static void __init __iomem *win_cfg_base(int win)
+{
+	/*
+	 * Find the control register base address for this window.
+	 *
+	 * BRIDGE_VIRT_BASE points to the right (CPU0's or CPU1's)
+	 * MBUS bridge depending on which CPU core we're running on,
+	 * so we don't need to take that into account here.
+	 */
+
+	return (void __iomem *)((win < 8) ? WIN0_OFF(win) : WIN8_OFF(win));
+}
+
+static int __init cpu_win_can_remap(int win)
+{
+	if (win < 8)
+		return 1;
+
+	return 0;
+}
+
+static void __init setup_cpu_win(int win, u32 base, u32 size,
+				 u8 target, u8 attr, int remap)
+{
+	void __iomem *addr = win_cfg_base(win);
+	u32 ctrl;
+
+	base &= 0xffff0000;
+	ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1;
+
+	writel(base, addr + WIN_BASE_OFF);
+	writel(ctrl, addr + WIN_CTRL_OFF);
+	if (cpu_win_can_remap(win)) {
+		if (remap < 0)
+			remap = base;
+
+		writel(remap & 0xffff0000, addr + WIN_REMAP_LO_OFF);
+		writel(0, addr + WIN_REMAP_HI_OFF);
+	}
+}
+
+void __init mv78xx0_setup_cpu_mbus(void)
+{
+	void __iomem *addr;
+	int i;
+	int cs;
+
+	/*
+	 * First, disable and clear windows.
+	 */
+	for (i = 0; i < 14; i++) {
+		addr = win_cfg_base(i);
+
+		writel(0, addr + WIN_BASE_OFF);
+		writel(0, addr + WIN_CTRL_OFF);
+		if (cpu_win_can_remap(i)) {
+			writel(0, addr + WIN_REMAP_LO_OFF);
+			writel(0, addr + WIN_REMAP_HI_OFF);
+		}
+	}
+
+	/*
+	 * Setup MBUS dram target info.
+	 */
+	mv78xx0_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
+
+	if (mv78xx0_core_index() == 0)
+		addr = (void __iomem *)DDR_WINDOW_CPU0_BASE;
+	else
+		addr = (void __iomem *)DDR_WINDOW_CPU1_BASE;
+
+	for (i = 0, cs = 0; i < 4; i++) {
+		u32 base = readl(addr + DDR_BASE_CS_OFF(i));
+		u32 size = readl(addr + DDR_SIZE_CS_OFF(i));
+
+		/*
+		 * Chip select enabled?
+		 */
+		if (size & 1) {
+			struct mbus_dram_window *w;
+
+			w = &mv78xx0_mbus_dram_info.cs[cs++];
+			w->cs_index = i;
+			w->mbus_attr = 0xf & ~(1 << i);
+			w->base = base & 0xffff0000;
+			w->size = (size | 0x0000ffff) + 1;
+		}
+	}
+	mv78xx0_mbus_dram_info.num_cs = cs;
+}
+
+void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size,
+				      int maj, int min)
+{
+	setup_cpu_win(window, base, size, TARGET_PCIE(maj),
+		      ATTR_PCIE_IO(min), -1);
+}
+
+void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size,
+				       int maj, int min)
+{
+	setup_cpu_win(window, base, size, TARGET_PCIE(maj),
+		      ATTR_PCIE_MEM(min), -1);
+}
diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c
new file mode 100644
index 00000000000..d27b83b7bf6
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -0,0 +1,754 @@
+/*
+ * arch/arm/mach-mv78xx0/common.c
+ *
+ * Core functions for Marvell MV78xx0 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/mbus.h>
+#include <linux/mv643xx_eth.h>
+#include <linux/ata_platform.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/arch/mv78xx0.h>
+#include <asm/plat-orion/cache-feroceon-l2.h>
+#include <asm/plat-orion/ehci-orion.h>
+#include <asm/plat-orion/orion_nand.h>
+#include <asm/plat-orion/time.h>
+#include "common.h"
+
+
+/*****************************************************************************
+ * Common bits
+ ****************************************************************************/
+int mv78xx0_core_index(void)
+{
+	u32 extra;
+
+	/*
+	 * Read Extra Features register.
+	 */
+	__asm__("mrc p15, 1, %0, c15, c1, 0" : "=r" (extra));
+
+	return !!(extra & 0x00004000);
+}
+
+static int get_hclk(void)
+{
+	int hclk;
+
+	/*
+	 * HCLK tick rate is configured by DEV_D[7:5] pins.
+	 */
+	switch ((readl(SAMPLE_AT_RESET_LOW) >> 5) & 7) {
+	case 0:
+		hclk = 166666667;
+		break;
+	case 1:
+		hclk = 200000000;
+		break;
+	case 2:
+		hclk = 266666667;
+		break;
+	case 3:
+		hclk = 333333333;
+		break;
+	case 4:
+		hclk = 400000000;
+		break;
+	default:
+		panic("unknown HCLK PLL setting: %.8x\n",
+			readl(SAMPLE_AT_RESET_LOW));
+	}
+
+	return hclk;
+}
+
+static void get_pclk_l2clk(int hclk, int core_index, int *pclk, int *l2clk)
+{
+	u32 cfg;
+
+	/*
+	 * Core #0 PCLK/L2CLK is configured by bits [13:8], core #1
+	 * PCLK/L2CLK by bits [19:14].
+	 */
+	if (core_index == 0) {
+		cfg = (readl(SAMPLE_AT_RESET_LOW) >> 8) & 0x3f;
+	} else {
+		cfg = (readl(SAMPLE_AT_RESET_LOW) >> 14) & 0x3f;
+	}
+
+	/*
+	 * Bits [11:8] ([17:14] for core #1) configure the PCLK:HCLK
+	 * ratio (1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6).
+	 */
+	*pclk = ((u64)hclk * (2 + (cfg & 0xf))) >> 1;
+
+	/*
+	 * Bits [13:12] ([19:18] for core #1) configure the PCLK:L2CLK
+	 * ratio (1, 2, 3).
+	 */
+	*l2clk = *pclk / (((cfg >> 4) & 3) + 1);
+}
+
+static int get_tclk(void)
+{
+	int tclk;
+
+	/*
+	 * TCLK tick rate is configured by DEV_A[2:0] strap pins.
+	 */
+	switch ((readl(SAMPLE_AT_RESET_HIGH) >> 6) & 7) {
+	case 1:
+		tclk = 166666667;
+		break;
+	case 3:
+		tclk = 200000000;
+		break;
+	default:
+		panic("unknown TCLK PLL setting: %.8x\n",
+			readl(SAMPLE_AT_RESET_HIGH));
+	}
+
+	return tclk;
+}
+
+
+/*****************************************************************************
+ * I/O Address Mapping
+ ****************************************************************************/
+static struct map_desc mv78xx0_io_desc[] __initdata = {
+	{
+		.virtual	= MV78XX0_CORE_REGS_VIRT_BASE,
+		.pfn		= 0,
+		.length		= MV78XX0_CORE_REGS_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= MV78XX0_PCIE_IO_VIRT_BASE(0),
+		.pfn		= __phys_to_pfn(MV78XX0_PCIE_IO_PHYS_BASE(0)),
+		.length		= MV78XX0_PCIE_IO_SIZE * 8,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= MV78XX0_REGS_VIRT_BASE,
+		.pfn		= __phys_to_pfn(MV78XX0_REGS_PHYS_BASE),
+		.length		= MV78XX0_REGS_SIZE,
+		.type		= MT_DEVICE,
+	},
+};
+
+void __init mv78xx0_map_io(void)
+{
+	unsigned long phys;
+
+	/*
+	 * Map the right set of per-core registers depending on
+	 * which core we are running on.
+	 */
+	if (mv78xx0_core_index() == 0) {
+		phys = MV78XX0_CORE0_REGS_PHYS_BASE;
+	} else {
+		phys = MV78XX0_CORE1_REGS_PHYS_BASE;
+	}
+	mv78xx0_io_desc[0].pfn = __phys_to_pfn(phys);
+
+	iotable_init(mv78xx0_io_desc, ARRAY_SIZE(mv78xx0_io_desc));
+}
+
+
+/*****************************************************************************
+ * EHCI
+ ****************************************************************************/
+static struct orion_ehci_data mv78xx0_ehci_data = {
+	.dram		= &mv78xx0_mbus_dram_info,
+};
+
+static u64 ehci_dmamask = 0xffffffffUL;
+
+
+/*****************************************************************************
+ * EHCI0
+ ****************************************************************************/
+static struct resource mv78xx0_ehci0_resources[] = {
+	{
+		.start	= USB0_PHYS_BASE,
+		.end	= USB0_PHYS_BASE + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_MV78XX0_USB_0,
+		.end	= IRQ_MV78XX0_USB_0,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ehci0 = {
+	.name		= "orion-ehci",
+	.id		= 0,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &mv78xx0_ehci_data,
+	},
+	.resource	= mv78xx0_ehci0_resources,
+	.num_resources	= ARRAY_SIZE(mv78xx0_ehci0_resources),
+};
+
+void __init mv78xx0_ehci0_init(void)
+{
+	platform_device_register(&mv78xx0_ehci0);
+}
+
+
+/*****************************************************************************
+ * EHCI1
+ ****************************************************************************/
+static struct resource mv78xx0_ehci1_resources[] = {
+	{
+		.start	= USB1_PHYS_BASE,
+		.end	= USB1_PHYS_BASE + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_MV78XX0_USB_1,
+		.end	= IRQ_MV78XX0_USB_1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ehci1 = {
+	.name		= "orion-ehci",
+	.id		= 1,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &mv78xx0_ehci_data,
+	},
+	.resource	= mv78xx0_ehci1_resources,
+	.num_resources	= ARRAY_SIZE(mv78xx0_ehci1_resources),
+};
+
+void __init mv78xx0_ehci1_init(void)
+{
+	platform_device_register(&mv78xx0_ehci1);
+}
+
+
+/*****************************************************************************
+ * EHCI2
+ ****************************************************************************/
+static struct resource mv78xx0_ehci2_resources[] = {
+	{
+		.start	= USB2_PHYS_BASE,
+		.end	= USB2_PHYS_BASE + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_MV78XX0_USB_2,
+		.end	= IRQ_MV78XX0_USB_2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ehci2 = {
+	.name		= "orion-ehci",
+	.id		= 2,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &mv78xx0_ehci_data,
+	},
+	.resource	= mv78xx0_ehci2_resources,
+	.num_resources	= ARRAY_SIZE(mv78xx0_ehci2_resources),
+};
+
+void __init mv78xx0_ehci2_init(void)
+{
+	platform_device_register(&mv78xx0_ehci2);
+}
+
+
+/*****************************************************************************
+ * GE00
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data mv78xx0_ge00_shared_data = {
+	.t_clk		= 0,
+	.dram		= &mv78xx0_mbus_dram_info,
+};
+
+static struct resource mv78xx0_ge00_shared_resources[] = {
+	{
+		.name	= "ge00 base",
+		.start	= GE00_PHYS_BASE + 0x2000,
+		.end	= GE00_PHYS_BASE + 0x3fff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device mv78xx0_ge00_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &mv78xx0_ge00_shared_data,
+	},
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge00_shared_resources,
+};
+
+static struct resource mv78xx0_ge00_resources[] = {
+	{
+		.name	= "ge00 irq",
+		.start	= IRQ_MV78XX0_GE00_SUM,
+		.end	= IRQ_MV78XX0_GE00_SUM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ge00 = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge00_resources,
+};
+
+void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	eth_data->shared = &mv78xx0_ge00_shared;
+	mv78xx0_ge00.dev.platform_data = eth_data;
+
+	platform_device_register(&mv78xx0_ge00_shared);
+	platform_device_register(&mv78xx0_ge00);
+}
+
+
+/*****************************************************************************
+ * GE01
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data mv78xx0_ge01_shared_data = {
+	.t_clk		= 0,
+	.dram		= &mv78xx0_mbus_dram_info,
+};
+
+static struct resource mv78xx0_ge01_shared_resources[] = {
+	{
+		.name	= "ge01 base",
+		.start	= GE01_PHYS_BASE + 0x2000,
+		.end	= GE01_PHYS_BASE + 0x3fff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device mv78xx0_ge01_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 1,
+	.dev		= {
+		.platform_data	= &mv78xx0_ge01_shared_data,
+	},
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge01_shared_resources,
+};
+
+static struct resource mv78xx0_ge01_resources[] = {
+	{
+		.name	= "ge01 irq",
+		.start	= IRQ_MV78XX0_GE01_SUM,
+		.end	= IRQ_MV78XX0_GE01_SUM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ge01 = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 1,
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge01_resources,
+};
+
+void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	eth_data->shared = &mv78xx0_ge01_shared;
+	eth_data->shared_smi = &mv78xx0_ge00_shared;
+	mv78xx0_ge01.dev.platform_data = eth_data;
+
+	platform_device_register(&mv78xx0_ge01_shared);
+	platform_device_register(&mv78xx0_ge01);
+}
+
+
+/*****************************************************************************
+ * GE10
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data mv78xx0_ge10_shared_data = {
+	.t_clk		= 0,
+	.dram		= &mv78xx0_mbus_dram_info,
+};
+
+static struct resource mv78xx0_ge10_shared_resources[] = {
+	{
+		.name	= "ge10 base",
+		.start	= GE10_PHYS_BASE + 0x2000,
+		.end	= GE10_PHYS_BASE + 0x3fff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device mv78xx0_ge10_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 2,
+	.dev		= {
+		.platform_data	= &mv78xx0_ge10_shared_data,
+	},
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge10_shared_resources,
+};
+
+static struct resource mv78xx0_ge10_resources[] = {
+	{
+		.name	= "ge10 irq",
+		.start	= IRQ_MV78XX0_GE10_SUM,
+		.end	= IRQ_MV78XX0_GE10_SUM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ge10 = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 2,
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge10_resources,
+};
+
+void __init mv78xx0_ge10_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	eth_data->shared = &mv78xx0_ge10_shared;
+	eth_data->shared_smi = &mv78xx0_ge00_shared;
+	mv78xx0_ge10.dev.platform_data = eth_data;
+
+	platform_device_register(&mv78xx0_ge10_shared);
+	platform_device_register(&mv78xx0_ge10);
+}
+
+
+/*****************************************************************************
+ * GE11
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data mv78xx0_ge11_shared_data = {
+	.t_clk		= 0,
+	.dram		= &mv78xx0_mbus_dram_info,
+};
+
+static struct resource mv78xx0_ge11_shared_resources[] = {
+	{
+		.name	= "ge11 base",
+		.start	= GE11_PHYS_BASE + 0x2000,
+		.end	= GE11_PHYS_BASE + 0x3fff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device mv78xx0_ge11_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 3,
+	.dev		= {
+		.platform_data	= &mv78xx0_ge11_shared_data,
+	},
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge11_shared_resources,
+};
+
+static struct resource mv78xx0_ge11_resources[] = {
+	{
+		.name	= "ge11 irq",
+		.start	= IRQ_MV78XX0_GE11_SUM,
+		.end	= IRQ_MV78XX0_GE11_SUM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_ge11 = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 3,
+	.num_resources	= 1,
+	.resource	= mv78xx0_ge11_resources,
+};
+
+void __init mv78xx0_ge11_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	eth_data->shared = &mv78xx0_ge11_shared;
+	eth_data->shared_smi = &mv78xx0_ge00_shared;
+	mv78xx0_ge11.dev.platform_data = eth_data;
+
+	platform_device_register(&mv78xx0_ge11_shared);
+	platform_device_register(&mv78xx0_ge11);
+}
+
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+static struct resource mv78xx0_sata_resources[] = {
+	{
+		.name	= "sata base",
+		.start	= SATA_PHYS_BASE,
+		.end	= SATA_PHYS_BASE + 0x5000 - 1,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "sata irq",
+		.start	= IRQ_MV78XX0_SATA,
+		.end	= IRQ_MV78XX0_SATA,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_sata = {
+	.name		= "sata_mv",
+	.id		= 0,
+	.dev		= {
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(mv78xx0_sata_resources),
+	.resource	= mv78xx0_sata_resources,
+};
+
+void __init mv78xx0_sata_init(struct mv_sata_platform_data *sata_data)
+{
+	sata_data->dram = &mv78xx0_mbus_dram_info;
+	mv78xx0_sata.dev.platform_data = sata_data;
+	platform_device_register(&mv78xx0_sata);
+}
+
+
+/*****************************************************************************
+ * UART0
+ ****************************************************************************/
+static struct plat_serial8250_port mv78xx0_uart0_data[] = {
+	{
+		.mapbase	= UART0_PHYS_BASE,
+		.membase	= (char *)UART0_VIRT_BASE,
+		.irq		= IRQ_MV78XX0_UART_0,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= 0,
+	}, {
+	},
+};
+
+static struct resource mv78xx0_uart0_resources[] = {
+	{
+		.start		= UART0_PHYS_BASE,
+		.end		= UART0_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_MV78XX0_UART_0,
+		.end		= IRQ_MV78XX0_UART_0,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_uart0 = {
+	.name			= "serial8250",
+	.id			= 0,
+	.dev			= {
+		.platform_data	= mv78xx0_uart0_data,
+	},
+	.resource		= mv78xx0_uart0_resources,
+	.num_resources		= ARRAY_SIZE(mv78xx0_uart0_resources),
+};
+
+void __init mv78xx0_uart0_init(void)
+{
+	platform_device_register(&mv78xx0_uart0);
+}
+
+
+/*****************************************************************************
+ * UART1
+ ****************************************************************************/
+static struct plat_serial8250_port mv78xx0_uart1_data[] = {
+	{
+		.mapbase	= UART1_PHYS_BASE,
+		.membase	= (char *)UART1_VIRT_BASE,
+		.irq		= IRQ_MV78XX0_UART_1,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= 0,
+	}, {
+	},
+};
+
+static struct resource mv78xx0_uart1_resources[] = {
+	{
+		.start		= UART1_PHYS_BASE,
+		.end		= UART1_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_MV78XX0_UART_1,
+		.end		= IRQ_MV78XX0_UART_1,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_uart1 = {
+	.name			= "serial8250",
+	.id			= 1,
+	.dev			= {
+		.platform_data	= mv78xx0_uart1_data,
+	},
+	.resource		= mv78xx0_uart1_resources,
+	.num_resources		= ARRAY_SIZE(mv78xx0_uart1_resources),
+};
+
+void __init mv78xx0_uart1_init(void)
+{
+	platform_device_register(&mv78xx0_uart1);
+}
+
+
+/*****************************************************************************
+ * UART2
+ ****************************************************************************/
+static struct plat_serial8250_port mv78xx0_uart2_data[] = {
+	{
+		.mapbase	= UART2_PHYS_BASE,
+		.membase	= (char *)UART2_VIRT_BASE,
+		.irq		= IRQ_MV78XX0_UART_2,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= 0,
+	}, {
+	},
+};
+
+static struct resource mv78xx0_uart2_resources[] = {
+	{
+		.start		= UART2_PHYS_BASE,
+		.end		= UART2_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_MV78XX0_UART_2,
+		.end		= IRQ_MV78XX0_UART_2,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_uart2 = {
+	.name			= "serial8250",
+	.id			= 2,
+	.dev			= {
+		.platform_data	= mv78xx0_uart2_data,
+	},
+	.resource		= mv78xx0_uart2_resources,
+	.num_resources		= ARRAY_SIZE(mv78xx0_uart2_resources),
+};
+
+void __init mv78xx0_uart2_init(void)
+{
+	platform_device_register(&mv78xx0_uart2);
+}
+
+
+/*****************************************************************************
+ * UART3
+ ****************************************************************************/
+static struct plat_serial8250_port mv78xx0_uart3_data[] = {
+	{
+		.mapbase	= UART3_PHYS_BASE,
+		.membase	= (char *)UART3_VIRT_BASE,
+		.irq		= IRQ_MV78XX0_UART_3,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= 0,
+	}, {
+	},
+};
+
+static struct resource mv78xx0_uart3_resources[] = {
+	{
+		.start		= UART3_PHYS_BASE,
+		.end		= UART3_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_MV78XX0_UART_3,
+		.end		= IRQ_MV78XX0_UART_3,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device mv78xx0_uart3 = {
+	.name			= "serial8250",
+	.id			= 3,
+	.dev			= {
+		.platform_data	= mv78xx0_uart3_data,
+	},
+	.resource		= mv78xx0_uart3_resources,
+	.num_resources		= ARRAY_SIZE(mv78xx0_uart3_resources),
+};
+
+void __init mv78xx0_uart3_init(void)
+{
+	platform_device_register(&mv78xx0_uart3);
+}
+
+
+/*****************************************************************************
+ * Time handling
+ ****************************************************************************/
+static void mv78xx0_timer_init(void)
+{
+	orion_time_init(IRQ_MV78XX0_TIMER_1, get_tclk());
+}
+
+struct sys_timer mv78xx0_timer = {
+	.init = mv78xx0_timer_init,
+};
+
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+static int __init is_l2_writethrough(void)
+{
+	return !!(readl(CPU_CONTROL) & L2_WRITETHROUGH);
+}
+
+void __init mv78xx0_init(void)
+{
+	int core_index;
+	int hclk;
+	int pclk;
+	int l2clk;
+	int tclk;
+
+	core_index = mv78xx0_core_index();
+	hclk = get_hclk();
+	get_pclk_l2clk(hclk, core_index, &pclk, &l2clk);
+	tclk = get_tclk();
+
+	printk(KERN_INFO "MV78xx0 core #%d, ", core_index);
+	printk("PCLK = %dMHz, ", (pclk + 499999) / 1000000);
+	printk("L2 = %dMHz, ", (l2clk + 499999) / 1000000);
+	printk("HCLK = %dMHz, ", (hclk + 499999) / 1000000);
+	printk("TCLK = %dMHz\n", (tclk + 499999) / 1000000);
+
+	mv78xx0_setup_cpu_mbus();
+
+#ifdef CONFIG_CACHE_FEROCEON_L2
+	feroceon_l2_init(is_l2_writethrough());
+#endif
+
+	mv78xx0_ge00_shared_data.t_clk = tclk;
+	mv78xx0_ge01_shared_data.t_clk = tclk;
+	mv78xx0_ge10_shared_data.t_clk = tclk;
+	mv78xx0_ge11_shared_data.t_clk = tclk;
+	mv78xx0_uart0_data[0].uartclk = tclk;
+	mv78xx0_uart1_data[0].uartclk = tclk;
+	mv78xx0_uart2_data[0].uartclk = tclk;
+	mv78xx0_uart3_data[0].uartclk = tclk;
+}
diff --git a/arch/arm/mach-mv78xx0/common.h b/arch/arm/mach-mv78xx0/common.h
new file mode 100644
index 00000000000..78af5de319d
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/common.h
@@ -0,0 +1,49 @@
+/*
+ * arch/arm/mach-mv78xx0/common.h
+ *
+ * Core functions for Marvell MV78xx0 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_MV78XX0_COMMON_H
+#define __ARCH_MV78XX0_COMMON_H
+
+struct mv643xx_eth_platform_data;
+struct mv_sata_platform_data;
+
+/*
+ * Basic MV78xx0 init functions used early by machine-setup.
+ */
+int mv78xx0_core_index(void);
+void mv78xx0_map_io(void);
+void mv78xx0_init(void);
+void mv78xx0_init_irq(void);
+
+extern struct mbus_dram_target_info mv78xx0_mbus_dram_info;
+void mv78xx0_setup_cpu_mbus(void);
+void mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size,
+			       int maj, int min);
+void mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size,
+				int maj, int min);
+
+void mv78xx0_ehci0_init(void);
+void mv78xx0_ehci1_init(void);
+void mv78xx0_ehci2_init(void);
+void mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data);
+void mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data);
+void mv78xx0_ge10_init(struct mv643xx_eth_platform_data *eth_data);
+void mv78xx0_ge11_init(struct mv643xx_eth_platform_data *eth_data);
+void mv78xx0_pcie_init(int init_port0, int init_port1);
+void mv78xx0_sata_init(struct mv_sata_platform_data *sata_data);
+void mv78xx0_uart0_init(void);
+void mv78xx0_uart1_init(void);
+void mv78xx0_uart2_init(void);
+void mv78xx0_uart3_init(void);
+
+extern struct sys_timer mv78xx0_timer;
+
+
+#endif
diff --git a/arch/arm/mach-mv78xx0/db78x00-bp-setup.c b/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
new file mode 100644
index 00000000000..0c93d19193d
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/db78x00-bp-setup.c
@@ -0,0 +1,94 @@
+/*
+ * arch/arm/mach-mv78xx0/db78x00-bp-setup.c
+ *
+ * Marvell DB-78x00-BP Development Board Setup
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+#include <linux/mv643xx_eth.h>
+#include <asm/arch/mv78xx0.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include "common.h"
+
+static struct mv643xx_eth_platform_data db78x00_ge00_data = {
+	.phy_addr	= 8,
+};
+
+static struct mv643xx_eth_platform_data db78x00_ge01_data = {
+	.phy_addr	= 9,
+};
+
+static struct mv643xx_eth_platform_data db78x00_ge10_data = {
+	.phy_addr	= -1,
+};
+
+static struct mv643xx_eth_platform_data db78x00_ge11_data = {
+	.phy_addr	= -1,
+};
+
+static struct mv_sata_platform_data db78x00_sata_data = {
+	.n_ports	= 2,
+};
+
+static void __init db78x00_init(void)
+{
+	/*
+	 * Basic MV78xx0 setup. Needs to be called early.
+	 */
+	mv78xx0_init();
+
+	/*
+	 * Partition on-chip peripherals between the two CPU cores.
+	 */
+	if (mv78xx0_core_index() == 0) {
+		mv78xx0_ehci0_init();
+		mv78xx0_ehci1_init();
+		mv78xx0_ehci2_init();
+		mv78xx0_ge00_init(&db78x00_ge00_data);
+		mv78xx0_ge01_init(&db78x00_ge01_data);
+		mv78xx0_ge10_init(&db78x00_ge10_data);
+		mv78xx0_ge11_init(&db78x00_ge11_data);
+		mv78xx0_sata_init(&db78x00_sata_data);
+		mv78xx0_uart0_init();
+		mv78xx0_uart2_init();
+	} else {
+		mv78xx0_uart1_init();
+		mv78xx0_uart3_init();
+	}
+}
+
+static int __init db78x00_pci_init(void)
+{
+	if (machine_is_db78x00_bp()) {
+		/*
+		 * Assign the x16 PCIe slot on the board to CPU core
+		 * #0, and let CPU core #1 have the four x1 slots.
+		 */
+		if (mv78xx0_core_index() == 0)
+			mv78xx0_pcie_init(0, 1);
+		else
+			mv78xx0_pcie_init(1, 0);
+	}
+
+	return 0;
+}
+subsys_initcall(db78x00_pci_init);
+
+MACHINE_START(DB78X00_BP, "Marvell DB-78x00-BP Development Board")
+	/* Maintainer: Lennert Buytenhek <buytenh@marvell.com> */
+	.phys_io	= MV78XX0_REGS_PHYS_BASE,
+	.io_pg_offst	= ((MV78XX0_REGS_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.init_machine	= db78x00_init,
+	.map_io		= mv78xx0_map_io,
+	.init_irq	= mv78xx0_init_irq,
+	.timer		= &mv78xx0_timer,
+MACHINE_END
diff --git a/arch/arm/mach-mv78xx0/irq.c b/arch/arm/mach-mv78xx0/irq.c
new file mode 100644
index 00000000000..60f4ee4d453
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/irq.c
@@ -0,0 +1,22 @@
+/*
+ * arch/arm/mach-mv78xx0/irq.c
+ *
+ * MV78xx0 IRQ handling.
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/arch/mv78xx0.h>
+#include <asm/plat-orion/irq.h>
+#include "common.h"
+
+void __init mv78xx0_init_irq(void)
+{
+	orion_irq_init(0, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_LOW_OFF));
+	orion_irq_init(32, (void __iomem *)(IRQ_VIRT_BASE + IRQ_MASK_HIGH_OFF));
+}
diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c
new file mode 100644
index 00000000000..b78e1443159
--- /dev/null
+++ b/arch/arm/mach-mv78xx0/pcie.c
@@ -0,0 +1,312 @@
+/*
+ * arch/arm/mach-mv78xx0/pcie.c
+ *
+ * PCIe functions for Marvell MV78xx0 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/mbus.h>
+#include <asm/mach/pci.h>
+#include <asm/plat-orion/pcie.h>
+#include "common.h"
+
+struct pcie_port {
+	u8			maj;
+	u8			min;
+	u8			root_bus_nr;
+	void __iomem		*base;
+	spinlock_t		conf_lock;
+	char			io_space_name[16];
+	char			mem_space_name[16];
+	struct resource		res[2];
+};
+
+static struct pcie_port pcie_port[8];
+static int num_pcie_ports;
+static struct resource pcie_io_space;
+static struct resource pcie_mem_space;
+
+
+static void __init mv78xx0_pcie_preinit(void)
+{
+	int i;
+	u32 size_each;
+	u32 start;
+	int win;
+
+	pcie_io_space.name = "PCIe I/O Space";
+	pcie_io_space.start = MV78XX0_PCIE_IO_PHYS_BASE(0);
+	pcie_io_space.end =
+		MV78XX0_PCIE_IO_PHYS_BASE(0) + MV78XX0_PCIE_IO_SIZE * 8 - 1;
+	pcie_io_space.flags = IORESOURCE_IO;
+	if (request_resource(&iomem_resource, &pcie_io_space))
+		panic("can't allocate PCIe I/O space");
+
+	pcie_mem_space.name = "PCIe MEM Space";
+	pcie_mem_space.start = MV78XX0_PCIE_MEM_PHYS_BASE;
+	pcie_mem_space.end =
+		MV78XX0_PCIE_MEM_PHYS_BASE + MV78XX0_PCIE_MEM_SIZE - 1;
+	pcie_mem_space.flags = IORESOURCE_MEM;
+	if (request_resource(&iomem_resource, &pcie_mem_space))
+		panic("can't allocate PCIe MEM space");
+
+	for (i = 0; i < num_pcie_ports; i++) {
+		struct pcie_port *pp = pcie_port + i;
+
+		snprintf(pp->io_space_name, sizeof(pp->io_space_name),
+			"PCIe %d.%d I/O", pp->maj, pp->min);
+		pp->io_space_name[sizeof(pp->io_space_name) - 1] = 0;
+		pp->res[0].name = pp->io_space_name;
+		pp->res[0].start = MV78XX0_PCIE_IO_PHYS_BASE(i);
+		pp->res[0].end = pp->res[0].start + MV78XX0_PCIE_IO_SIZE - 1;
+		pp->res[0].flags = IORESOURCE_IO;
+
+		snprintf(pp->mem_space_name, sizeof(pp->mem_space_name),
+			"PCIe %d.%d MEM", pp->maj, pp->min);
+		pp->mem_space_name[sizeof(pp->mem_space_name) - 1] = 0;
+		pp->res[1].name = pp->mem_space_name;
+		pp->res[1].flags = IORESOURCE_MEM;
+	}
+
+	switch (num_pcie_ports) {
+	case 0:
+		size_each = 0;
+		break;
+
+	case 1:
+		size_each = 0x30000000;
+		break;
+
+	case 2 ... 3:
+		size_each = 0x10000000;
+		break;
+
+	case 4 ... 6:
+		size_each = 0x08000000;
+		break;
+
+	case 7:
+		size_each = 0x04000000;
+		break;
+
+	default:
+		panic("invalid number of PCIe ports");
+	}
+
+	start = MV78XX0_PCIE_MEM_PHYS_BASE;
+	for (i = 0; i < num_pcie_ports; i++) {
+		struct pcie_port *pp = pcie_port + i;
+
+		pp->res[1].start = start;
+		pp->res[1].end = start + size_each - 1;
+		start += size_each;
+	}
+
+	for (i = 0; i < num_pcie_ports; i++) {
+		struct pcie_port *pp = pcie_port + i;
+
+		if (request_resource(&pcie_io_space, &pp->res[0]))
+			panic("can't allocate PCIe I/O sub-space");
+
+		if (request_resource(&pcie_mem_space, &pp->res[1]))
+			panic("can't allocate PCIe MEM sub-space");
+	}
+
+	win = 0;
+	for (i = 0; i < num_pcie_ports; i++) {
+		struct pcie_port *pp = pcie_port + i;
+
+		mv78xx0_setup_pcie_io_win(win++, pp->res[0].start,
+			pp->res[0].end - pp->res[0].start + 1,
+			pp->maj, pp->min);
+
+		mv78xx0_setup_pcie_mem_win(win++, pp->res[1].start,
+			pp->res[1].end - pp->res[1].start + 1,
+			pp->maj, pp->min);
+	}
+}
+
+static int __init mv78xx0_pcie_setup(int nr, struct pci_sys_data *sys)
+{
+	struct pcie_port *pp;
+
+	if (nr >= num_pcie_ports)
+		return 0;
+
+	pp = &pcie_port[nr];
+	pp->root_bus_nr = sys->busnr;
+
+	/*
+	 * Generic PCIe unit setup.
+	 */
+	orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
+	orion_pcie_setup(pp->base, &mv78xx0_mbus_dram_info);
+
+	sys->resource[0] = &pp->res[0];
+	sys->resource[1] = &pp->res[1];
+	sys->resource[2] = NULL;
+
+	return 1;
+}
+
+static struct pcie_port *bus_to_port(int bus)
+{
+	int i;
+
+	for (i = num_pcie_ports - 1; i >= 0; i--) {
+		int rbus = pcie_port[i].root_bus_nr;
+		if (rbus != -1 && rbus <= bus)
+			break;
+	}
+
+	return i >= 0 ? pcie_port + i : NULL;
+}
+
+static int pcie_valid_config(struct pcie_port *pp, int bus, int dev)
+{
+	/*
+	 * Don't go out when trying to access nonexisting devices
+	 * on the local bus.
+	 */
+	if (bus == pp->root_bus_nr && dev > 1)
+		return 0;
+
+	return 1;
+}
+
+static int pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
+			int size, u32 *val)
+{
+	struct pcie_port *pp = bus_to_port(bus->number);
+	unsigned long flags;
+	int ret;
+
+	if (pcie_valid_config(pp, bus->number, PCI_SLOT(devfn)) == 0) {
+		*val = 0xffffffff;
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+	spin_lock_irqsave(&pp->conf_lock, flags);
+	ret = orion_pcie_rd_conf(pp->base, bus, devfn, where, size, val);
+	spin_unlock_irqrestore(&pp->conf_lock, flags);
+
+	return ret;
+}
+
+static int pcie_wr_conf(struct pci_bus *bus, u32 devfn,
+			int where, int size, u32 val)
+{
+	struct pcie_port *pp = bus_to_port(bus->number);
+	unsigned long flags;
+	int ret;
+
+	if (pcie_valid_config(pp, bus->number, PCI_SLOT(devfn)) == 0)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	spin_lock_irqsave(&pp->conf_lock, flags);
+	ret = orion_pcie_wr_conf(pp->base, bus, devfn, where, size, val);
+	spin_unlock_irqrestore(&pp->conf_lock, flags);
+
+	return ret;
+}
+
+static struct pci_ops pcie_ops = {
+	.read = pcie_rd_conf,
+	.write = pcie_wr_conf,
+};
+
+static void __devinit rc_pci_fixup(struct pci_dev *dev)
+{
+	/*
+	 * Prevent enumeration of root complex.
+	 */
+	if (dev->bus->parent == NULL && dev->devfn == 0) {
+		int i;
+
+		for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+			dev->resource[i].start = 0;
+			dev->resource[i].end   = 0;
+			dev->resource[i].flags = 0;
+		}
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL, PCI_ANY_ID, rc_pci_fixup);
+
+static struct pci_bus __init *
+mv78xx0_pcie_scan_bus(int nr, struct pci_sys_data *sys)
+{
+	struct pci_bus *bus;
+
+	if (nr < num_pcie_ports) {
+		bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+	} else {
+		bus = NULL;
+		BUG();
+	}
+
+	return bus;
+}
+
+static int __init mv78xx0_pcie_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	struct pcie_port *pp = bus_to_port(dev->bus->number);
+
+	return IRQ_MV78XX0_PCIE_00 + (pp->maj << 2) + pp->min;
+}
+
+static struct hw_pci mv78xx0_pci __initdata = {
+	.nr_controllers	= 8,
+	.preinit	= mv78xx0_pcie_preinit,
+	.swizzle	= pci_std_swizzle,
+	.setup		= mv78xx0_pcie_setup,
+	.scan		= mv78xx0_pcie_scan_bus,
+	.map_irq	= mv78xx0_pcie_map_irq,
+};
+
+static void __init add_pcie_port(int maj, int min, unsigned long base)
+{
+	printk(KERN_INFO "MV78xx0 PCIe port %d.%d: ", maj, min);
+
+	if (orion_pcie_link_up((void __iomem *)base)) {
+		struct pcie_port *pp = &pcie_port[num_pcie_ports++];
+
+		printk("link up\n");
+
+		pp->maj = maj;
+		pp->min = min;
+		pp->root_bus_nr = -1;
+		pp->base = (void __iomem *)base;
+		spin_lock_init(&pp->conf_lock);
+		memset(pp->res, 0, sizeof(pp->res));
+	} else {
+		printk("link down, ignoring\n");
+	}
+}
+
+void __init mv78xx0_pcie_init(int init_port0, int init_port1)
+{
+	if (init_port0) {
+		add_pcie_port(0, 0, PCIE00_VIRT_BASE);
+		if (!orion_pcie_x4_mode((void __iomem *)PCIE00_VIRT_BASE)) {
+			add_pcie_port(0, 1, PCIE01_VIRT_BASE);
+			add_pcie_port(0, 2, PCIE02_VIRT_BASE);
+			add_pcie_port(0, 3, PCIE03_VIRT_BASE);
+		}
+	}
+
+	if (init_port1) {
+		add_pcie_port(1, 0, PCIE10_VIRT_BASE);
+		if (!orion_pcie_x4_mode((void __iomem *)PCIE10_VIRT_BASE)) {
+			add_pcie_port(1, 1, PCIE11_VIRT_BASE);
+			add_pcie_port(1, 2, PCIE12_VIRT_BASE);
+			add_pcie_port(1, 3, PCIE13_VIRT_BASE);
+		}
+	}
+
+	pci_common_init(&mv78xx0_pci);
+}
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index a7a6efec897..236603bbafd 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -365,7 +365,7 @@ config CPU_XSC3
 # Feroceon
 config CPU_FEROCEON
 	bool
-	depends on ARCH_ORION5X || ARCH_LOKI || ARCH_KIRKWOOD
+	depends on ARCH_ORION5X || ARCH_LOKI || ARCH_KIRKWOOD || ARCH_MV78XX0
 	default y
 	select CPU_32v5
 	select CPU_ABRT_EV5T
@@ -716,7 +716,7 @@ config OUTER_CACHE
 
 config CACHE_FEROCEON_L2
 	bool "Enable the Feroceon L2 cache controller"
-	depends on ARCH_KIRKWOOD
+	depends on ARCH_KIRKWOOD || ARCH_MV78XX0
 	default y
 	select OUTER_CACHE
 	help