[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>

14 files changed, 1006 insertions, 2 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7a725f89b843..3535cae73d24 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -352,6 +352,16 @@ config ARCH_L7200
 	  If you have any questions or comments about the Linux kernel port
 	  to this board, send e-mail to <sjhill@cotw.com>.
 
+config ARCH_KIRKWOOD
+	bool "Marvell Kirkwood"
+	select PCI
+	select GENERIC_TIME
+	select GENERIC_CLOCKEVENTS
+	select PLAT_ORION
+	help
+	  Support for the following Marvell Kirkwood series SoCs:
+	  88F6180, 88F6192 and 88F6281.
+
 config ARCH_KS8695
 	bool "Micrel/Kendin KS8695"
 	select GENERIC_GPIO
@@ -530,6 +540,8 @@ source "arch/arm/mach-omap2/Kconfig"
 
 source "arch/arm/mach-orion5x/Kconfig"
 
+source "arch/arm/mach-kirkwood/Kconfig"
+
 source "arch/arm/plat-s3c24xx/Kconfig"
 source "arch/arm/plat-s3c/Kconfig"
 
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 2ea32a70c977..1459b3849c8c 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -135,6 +135,7 @@ endif
  machine-$(CONFIG_ARCH_NETX)	   := netx
  machine-$(CONFIG_ARCH_NS9XXX)	   := ns9xxx
  machine-$(CONFIG_ARCH_DAVINCI)	   := davinci
+ machine-$(CONFIG_ARCH_KIRKWOOD)   := kirkwood
  machine-$(CONFIG_ARCH_KS8695)     := ks8695
   incdir-$(CONFIG_ARCH_MXC)	   := mxc
  machine-$(CONFIG_ARCH_MX3)	   := mx3
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
new file mode 100644
index 000000000000..3600cd9f0519
--- /dev/null
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -0,0 +1,25 @@
+if ARCH_KIRKWOOD
+
+menu "Marvell Kirkwood Implementations"
+
+config MACH_DB88F6281_BP
+	bool "Marvell DB-88F6281-BP Development Board"
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell DB-88F6281-BP Development Board.
+
+config MACH_RD88F6192_NAS
+	bool "Marvell RD-88F6192-NAS Reference Board"
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell RD-88F6192-NAS Reference Board.
+
+config MACH_RD88F6281
+	bool "Marvell RD-88F6281 Reference Board"
+	help
+	  Say 'Y' here if you want your kernel to support the
+	  Marvell RD-88F6281 Reference Board.
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
new file mode 100644
index 000000000000..e14bf40bfb07
--- /dev/null
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -0,0 +1,5 @@
+obj-y				+= common.o addr-map.o irq.o pcie.o
+
+obj-$(CONFIG_MACH_DB88F6281_BP)		+= db88f6281-bp-setup.o
+obj-$(CONFIG_MACH_RD88F6192_NAS)	+= rd88f6192-nas-setup.o
+obj-$(CONFIG_MACH_RD88F6192_NAS)	+= rd88f6281-setup.o
diff --git a/arch/arm/mach-kirkwood/Makefile.boot b/arch/arm/mach-kirkwood/Makefile.boot
new file mode 100644
index 000000000000..67039c3e0c48
--- /dev/null
+++ b/arch/arm/mach-kirkwood/Makefile.boot
@@ -0,0 +1,3 @@
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c
new file mode 100644
index 000000000000..a39f0f3c4730
--- /dev/null
+++ b/arch/arm/mach-kirkwood/addr-map.c
@@ -0,0 +1,139 @@
+/*
+ * arch/arm/mach-kirkwood/addr-map.c
+ *
+ * Address map 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mbus.h>
+#include <linux/io.h>
+#include <asm/hardware.h>
+#include "common.h"
+
+/*
+ * Generic Address Decode Windows bit settings
+ */
+#define TARGET_DDR		0
+#define TARGET_DEV_BUS		1
+#define TARGET_PCIE		4
+#define ATTR_DEV_SPI_ROM	0x1e
+#define ATTR_DEV_BOOT		0x1d
+#define ATTR_DEV_NAND		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		0xe0
+#define ATTR_PCIE_MEM		0xe8
+
+/*
+ * 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 WIN_OFF(n)		(BRIDGE_VIRT_BASE + 0x0000 + ((n) << 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 kirkwood_mbus_dram_info;
+
+static int __init cpu_win_can_remap(int win)
+{
+	if (win < 4)
+		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 = (void __iomem *)WIN_OFF(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 kirkwood_setup_cpu_mbus(void)
+{
+	void __iomem *addr;
+	int i;
+	int cs;
+
+	/*
+	 * First, disable and clear windows.
+	 */
+	for (i = 0; i < 8; i++) {
+		addr = (void __iomem *)WIN_OFF(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 windows for PCIe IO+MEM space.
+	 */
+	setup_cpu_win(0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE,
+		      TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE);
+	setup_cpu_win(1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE,
+		      TARGET_PCIE, ATTR_PCIE_MEM, -1);
+
+	/*
+	 * Setup window for NAND controller.
+	 */
+	setup_cpu_win(2, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE,
+		      TARGET_DEV_BUS, ATTR_DEV_NAND, -1);
+
+	/*
+	 * Setup MBUS dram target info.
+	 */
+	kirkwood_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
+
+	addr = (void __iomem *)DDR_WINDOW_CPU_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 = &kirkwood_mbus_dram_info.cs[cs++];
+			w->cs_index = i;
+			w->mbus_attr = 0xf & ~(1 << i);
+			w->base = base & 0xffff0000;
+			w->size = (size | 0x0000ffff) + 1;
+		}
+	}
+	kirkwood_mbus_dram_info.num_cs = cs;
+}
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
new file mode 100644
index 000000000000..e73384fbbba8
--- /dev/null
+++ b/arch/arm/mach-kirkwood/common.c
@@ -0,0 +1,326 @@
+/*
+ * arch/arm/mach-kirkwood/common.c
+ *
+ * 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.
+ */
+
+#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/page.h>
+#include <asm/timex.h>
+#include <asm/mach/map.h>
+#include <asm/mach/time.h>
+#include <asm/arch/kirkwood.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"
+
+/*****************************************************************************
+ * I/O Address Mapping
+ ****************************************************************************/
+static struct map_desc kirkwood_io_desc[] __initdata = {
+	{
+		.virtual	= KIRKWOOD_PCIE_IO_VIRT_BASE,
+		.pfn		= __phys_to_pfn(KIRKWOOD_PCIE_IO_PHYS_BASE),
+		.length		= KIRKWOOD_PCIE_IO_SIZE,
+		.type		= MT_DEVICE,
+	}, {
+		.virtual	= KIRKWOOD_REGS_VIRT_BASE,
+		.pfn		= __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
+		.length		= KIRKWOOD_REGS_SIZE,
+		.type		= MT_DEVICE,
+	},
+};
+
+void __init kirkwood_map_io(void)
+{
+	iotable_init(kirkwood_io_desc, ARRAY_SIZE(kirkwood_io_desc));
+}
+
+
+/*****************************************************************************
+ * EHCI
+ ****************************************************************************/
+static struct orion_ehci_data kirkwood_ehci_data = {
+	.dram		= &kirkwood_mbus_dram_info,
+};
+
+static u64 ehci_dmamask = 0xffffffffUL;
+
+
+/*****************************************************************************
+ * EHCI0
+ ****************************************************************************/
+static struct resource kirkwood_ehci_resources[] = {
+	{
+		.start	= USB_PHYS_BASE,
+		.end	= USB_PHYS_BASE + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_KIRKWOOD_USB,
+		.end	= IRQ_KIRKWOOD_USB,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_ehci = {
+	.name		= "orion-ehci",
+	.id		= 0,
+	.dev		= {
+		.dma_mask		= &ehci_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &kirkwood_ehci_data,
+	},
+	.resource	= kirkwood_ehci_resources,
+	.num_resources	= ARRAY_SIZE(kirkwood_ehci_resources),
+};
+
+void __init kirkwood_ehci_init(void)
+{
+	platform_device_register(&kirkwood_ehci);
+}
+
+
+/*****************************************************************************
+ * GE00
+ ****************************************************************************/
+struct mv643xx_eth_shared_platform_data kirkwood_ge00_shared_data = {
+	.t_clk		= KIRKWOOD_TCLK,
+	.dram		= &kirkwood_mbus_dram_info,
+};
+
+static struct resource kirkwood_ge00_shared_resources[] = {
+	{
+		.name	= "ge00 base",
+		.start	= GE00_PHYS_BASE + 0x2000,
+		.end	= GE00_PHYS_BASE + 0x3fff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device kirkwood_ge00_shared = {
+	.name		= MV643XX_ETH_SHARED_NAME,
+	.id		= 0,
+	.dev		= {
+		.platform_data	= &kirkwood_ge00_shared_data,
+	},
+	.num_resources	= 1,
+	.resource	= kirkwood_ge00_shared_resources,
+};
+
+static struct resource kirkwood_ge00_resources[] = {
+	{
+		.name	= "ge00 irq",
+		.start	= IRQ_KIRKWOOD_GE00_SUM,
+		.end	= IRQ_KIRKWOOD_GE00_SUM,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_ge00 = {
+	.name		= MV643XX_ETH_NAME,
+	.id		= 0,
+	.num_resources	= 1,
+	.resource	= kirkwood_ge00_resources,
+};
+
+void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
+{
+	eth_data->shared = &kirkwood_ge00_shared;
+	kirkwood_ge00.dev.platform_data = eth_data;
+
+	platform_device_register(&kirkwood_ge00_shared);
+	platform_device_register(&kirkwood_ge00);
+}
+
+
+/*****************************************************************************
+ * SoC RTC
+ ****************************************************************************/
+static struct resource kirkwood_rtc_resource = {
+	.start	= RTC_PHYS_BASE,
+	.end	= RTC_PHYS_BASE + SZ_16 - 1,
+	.flags	= IORESOURCE_MEM,
+};
+
+void __init kirkwood_rtc_init(void)
+{
+	platform_device_register_simple("rtc-mv", -1, &kirkwood_rtc_resource, 1);
+}
+
+
+/*****************************************************************************
+ * SATA
+ ****************************************************************************/
+static struct resource kirkwood_sata_resources[] = {
+	{
+		.name	= "sata base",
+		.start	= SATA_PHYS_BASE,
+		.end	= SATA_PHYS_BASE + 0x5000 - 1,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.name	= "sata irq",
+		.start	= IRQ_KIRKWOOD_SATA,
+		.end	= IRQ_KIRKWOOD_SATA,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_sata = {
+	.name		= "sata_mv",
+	.id		= 0,
+	.dev		= {
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(kirkwood_sata_resources),
+	.resource	= kirkwood_sata_resources,
+};
+
+void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
+{
+	sata_data->dram = &kirkwood_mbus_dram_info;
+	kirkwood_sata.dev.platform_data = sata_data;
+	platform_device_register(&kirkwood_sata);
+}
+
+
+/*****************************************************************************
+ * UART0
+ ****************************************************************************/
+static struct plat_serial8250_port kirkwood_uart0_data[] = {
+	{
+		.mapbase	= UART0_PHYS_BASE,
+		.membase	= (char *)UART0_VIRT_BASE,
+		.irq		= IRQ_KIRKWOOD_UART_0,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= KIRKWOOD_TCLK,
+	}, {
+	},
+};
+
+static struct resource kirkwood_uart0_resources[] = {
+	{
+		.start		= UART0_PHYS_BASE,
+		.end		= UART0_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_KIRKWOOD_UART_0,
+		.end		= IRQ_KIRKWOOD_UART_0,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_uart0 = {
+	.name			= "serial8250",
+	.id			= 0,
+	.dev			= {
+		.platform_data	= kirkwood_uart0_data,
+	},
+	.resource		= kirkwood_uart0_resources,
+	.num_resources		= ARRAY_SIZE(kirkwood_uart0_resources),
+};
+
+void __init kirkwood_uart0_init(void)
+{
+	platform_device_register(&kirkwood_uart0);
+}
+
+
+/*****************************************************************************
+ * UART1
+ ****************************************************************************/
+static struct plat_serial8250_port kirkwood_uart1_data[] = {
+	{
+		.mapbase	= UART1_PHYS_BASE,
+		.membase	= (char *)UART1_VIRT_BASE,
+		.irq		= IRQ_KIRKWOOD_UART_1,
+		.flags		= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
+		.iotype		= UPIO_MEM,
+		.regshift	= 2,
+		.uartclk	= KIRKWOOD_TCLK,
+	}, {
+	},
+};
+
+static struct resource kirkwood_uart1_resources[] = {
+	{
+		.start		= UART1_PHYS_BASE,
+		.end		= UART1_PHYS_BASE + 0xff,
+		.flags		= IORESOURCE_MEM,
+	}, {
+		.start		= IRQ_KIRKWOOD_UART_1,
+		.end		= IRQ_KIRKWOOD_UART_1,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device kirkwood_uart1 = {
+	.name			= "serial8250",
+	.id			= 1,
+	.dev			= {
+		.platform_data	= kirkwood_uart1_data,
+	},
+	.resource		= kirkwood_uart1_resources,
+	.num_resources		= ARRAY_SIZE(kirkwood_uart1_resources),
+};
+
+void __init kirkwood_uart1_init(void)
+{
+	platform_device_register(&kirkwood_uart1);
+}
+
+
+/*****************************************************************************
+ * Time handling
+ ****************************************************************************/
+static void kirkwood_timer_init(void)
+{
+	orion_time_init(IRQ_KIRKWOOD_BRIDGE, KIRKWOOD_TCLK);
+}
+
+struct sys_timer kirkwood_timer = {
+	.init = kirkwood_timer_init,
+};
+
+
+/*****************************************************************************
+ * General
+ ****************************************************************************/
+static char * __init kirkwood_id(void)
+{
+	switch (readl(DEVICE_ID) & 0x3) {
+	case 0:
+		return "88F6180";
+	case 1:
+		return "88F6192";
+	case 2:
+		return "88F6281";
+	}
+
+	return "unknown 88F6000 variant";
+}
+
+void __init kirkwood_init(void)
+{
+	printk(KERN_INFO "Kirkwood: %s, TCLK=%d.\n",
+		kirkwood_id(), KIRKWOOD_TCLK);
+
+	kirkwood_setup_cpu_mbus();
+
+#ifdef CONFIG_CACHE_FEROCEON_L2
+	feroceon_l2_init(1);
+#endif
+}
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
new file mode 100644
index 000000000000..5dee2f6b40a5
--- /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
diff --git a/arch/arm/mach-kirkwood/db88f6281-bp-setup.c b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
new file mode 100644
index 000000000000..d5c482c628e3
--- /dev/null
+++ b/arch/arm/mach-kirkwood/db88f6281-bp-setup.c
@@ -0,0 +1,68 @@
+/*
+ * arch/arm/mach-kirkwood/db88f6281-bp-setup.c
+ *
+ * Marvell DB-88F6281-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/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/timer.h>
+#include <linux/ata_platform.h>
+#include <linux/mv643xx_eth.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/kirkwood.h>
+#include "common.h"
+
+static struct mv643xx_eth_platform_data db88f6281_ge00_data = {
+	.phy_addr	= 8,
+};
+
+static struct mv_sata_platform_data db88f6281_sata_data = {
+	.n_ports	= 2,
+};
+
+static void __init db88f6281_init(void)
+{
+	/*
+	 * Basic setup. Needs to be called early.
+	 */
+	kirkwood_init();
+
+	kirkwood_ehci_init();
+	kirkwood_ge00_init(&db88f6281_ge00_data);
+	kirkwood_rtc_init();
+	kirkwood_sata_init(&db88f6281_sata_data);
+	kirkwood_uart0_init();
+	kirkwood_uart1_init();
+}
+
+static int __init db88f6281_pci_init(void)
+{
+	if (machine_is_db88f6281_bp())
+		kirkwood_pcie_init();
+
+	return 0;
+}
+subsys_initcall(db88f6281_pci_init);
+
+MACHINE_START(DB88F6281_BP, "Marvell DB-88F6281-BP Development Board")
+	/* Maintainer: Saeed Bishara <saeed@marvell.com> */
+	.phys_io	= KIRKWOOD_REGS_PHYS_BASE,
+	.io_pg_offst	= ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.init_machine	= db88f6281_init,
+	.map_io		= kirkwood_map_io,
+	.init_irq	= kirkwood_init_irq,
+	.timer		= &kirkwood_timer,
+MACHINE_END
diff --git a/arch/arm/mach-kirkwood/irq.c b/arch/arm/mach-kirkwood/irq.c
new file mode 100644
index 000000000000..302bb2cf6669
--- /dev/null
+++ b/arch/arm/mach-kirkwood/irq.c
@@ -0,0 +1,22 @@
+/*
+ * arch/arm/mach-kirkwood/irq.c
+ *
+ * Kirkwood 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/irq.h>
+#include <linux/io.h>
+#include <asm/plat-orion/irq.h>
+#include "common.h"
+
+void __init kirkwood_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-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
new file mode 100644
index 000000000000..8282d0ff84bf
--- /dev/null
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -0,0 +1,180 @@
+/*
+ * arch/arm/mach-kirkwood/pcie.c
+ *
+ * PCIe 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.
+ */
+
+#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"
+
+
+#define PCIE_BASE	((void __iomem *)PCIE_VIRT_BASE)
+
+static int pcie_valid_config(int bus, int dev)
+{
+	/*
+	 * Don't go out when trying to access --
+	 * 1. nonexisting device on local bus
+	 * 2. where there's no device connected (no link)
+	 */
+	if (bus == 0 && dev == 0)
+		return 1;
+
+	if (!orion_pcie_link_up(PCIE_BASE))
+		return 0;
+
+	if (bus == 0 && dev != 1)
+		return 0;
+
+	return 1;
+}
+
+
+/*
+ * PCIe config cycles are done by programming the PCIE_CONF_ADDR register
+ * and then reading the PCIE_CONF_DATA register. Need to make sure these
+ * transactions are atomic.
+ */
+static DEFINE_SPINLOCK(kirkwood_pcie_lock);
+
+static int pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
+			int size, u32 *val)
+{
+	unsigned long flags;
+	int ret;
+
+	if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) {
+		*val = 0xffffffff;
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	}
+
+	spin_lock_irqsave(&kirkwood_pcie_lock, flags);
+	ret = orion_pcie_rd_conf(PCIE_BASE, bus, devfn, where, size, val);
+	spin_unlock_irqrestore(&kirkwood_pcie_lock, flags);
+
+	return ret;
+}
+
+static int pcie_wr_conf(struct pci_bus *bus, u32 devfn,
+			int where, int size, u32 val)
+{
+	unsigned long flags;
+	int ret;
+
+	if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	spin_lock_irqsave(&kirkwood_pcie_lock, flags);
+	ret = orion_pcie_wr_conf(PCIE_BASE, bus, devfn, where, size, val);
+	spin_unlock_irqrestore(&kirkwood_pcie_lock, flags);
+
+	return ret;
+}
+
+static struct pci_ops pcie_ops = {
+	.read = pcie_rd_conf,
+	.write = pcie_wr_conf,
+};
+
+
+static int kirkwood_pcie_setup(int nr, struct pci_sys_data *sys)
+{
+	struct resource *res;
+
+	/*
+	 * Generic PCIe unit setup.
+	 */
+	orion_pcie_setup(PCIE_BASE, &kirkwood_mbus_dram_info);
+
+	/*
+	 * Request resources.
+	 */
+	res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL);
+	if (!res)
+		panic("pcie_setup unable to alloc resources");
+
+	/*
+	 * IORESOURCE_IO
+	 */
+	res[0].name = "PCIe I/O Space";
+	res[0].flags = IORESOURCE_IO;
+	res[0].start = KIRKWOOD_PCIE_IO_PHYS_BASE;
+	res[0].end = res[0].start + KIRKWOOD_PCIE_IO_SIZE - 1;
+	if (request_resource(&ioport_resource, &res[0]))
+		panic("Request PCIe IO resource failed\n");
+	sys->resource[0] = &res[0];
+
+	/*
+	 * IORESOURCE_MEM
+	 */
+	res[1].name = "PCIe Memory Space";
+	res[1].flags = IORESOURCE_MEM;
+	res[1].start = KIRKWOOD_PCIE_MEM_PHYS_BASE;
+	res[1].end = res[1].start + KIRKWOOD_PCIE_MEM_SIZE - 1;
+	if (request_resource(&iomem_resource, &res[1]))
+		panic("Request PCIe Memory resource failed\n");
+	sys->resource[1] = &res[1];
+
+	sys->resource[2] = NULL;
+	sys->io_offset = 0;
+
+	return 1;
+}
+
+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 *
+kirkwood_pcie_scan_bus(int nr, struct pci_sys_data *sys)
+{
+	struct pci_bus *bus;
+
+	if (nr == 0) {
+		bus = pci_scan_bus(sys->busnr, &pcie_ops, sys);
+	} else {
+		bus = NULL;
+		BUG();
+	}
+
+	return bus;
+}
+
+static int __init kirkwood_pcie_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	return IRQ_KIRKWOOD_PCIE;
+}
+
+static struct hw_pci kirkwood_pci __initdata = {
+	.nr_controllers	= 1,
+	.swizzle	= pci_std_swizzle,
+	.setup		= kirkwood_pcie_setup,
+	.scan		= kirkwood_pcie_scan_bus,
+	.map_irq	= kirkwood_pcie_map_irq,
+};
+
+void __init kirkwood_pcie_init(void)
+{
+	pci_common_init(&kirkwood_pci);
+}
diff --git a/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c b/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
new file mode 100644
index 000000000000..6cf642c504d3
--- /dev/null
+++ b/arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
@@ -0,0 +1,69 @@
+/*
+ * arch/arm/mach-kirkwood/rd88f6192-nas-setup.c
+ *
+ * Marvell RD-88F6192-NAS Reference 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/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/timer.h>
+#include <linux/ata_platform.h>
+#include <linux/mv643xx_eth.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/kirkwood.h>
+#include "common.h"
+
+#define RD88F6192_GPIO_USB_VBUS		10
+
+static struct mv643xx_eth_platform_data rd88f6192_ge00_data = {
+	.phy_addr	= 8,
+};
+
+static struct mv_sata_platform_data rd88f6192_sata_data = {
+	.n_ports	= 2,
+};
+
+static void __init rd88f6192_init(void)
+{
+	/*
+	 * Basic setup. Needs to be called early.
+	 */
+	kirkwood_init();
+
+	kirkwood_ehci_init();
+	kirkwood_ge00_init(&rd88f6192_ge00_data);
+	kirkwood_rtc_init();
+	kirkwood_sata_init(&rd88f6192_sata_data);
+	kirkwood_uart0_init();
+}
+
+static int __init rd88f6192_pci_init(void)
+{
+	if (machine_is_rd88f6192_nas())
+		kirkwood_pcie_init();
+
+	return 0;
+}
+subsys_initcall(rd88f6192_pci_init);
+
+MACHINE_START(RD88F6192_NAS, "Marvell RD-88F6192-NAS Development Board")
+	/* Maintainer: Saeed Bishara <saeed@marvell.com> */
+	.phys_io	= KIRKWOOD_REGS_PHYS_BASE,
+	.io_pg_offst	= ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.init_machine	= rd88f6192_init,
+	.map_io		= kirkwood_map_io,
+	.init_irq	= kirkwood_init_irq,
+	.timer		= &kirkwood_timer,
+MACHINE_END
diff --git a/arch/arm/mach-kirkwood/rd88f6281-setup.c b/arch/arm/mach-kirkwood/rd88f6281-setup.c
new file mode 100644
index 000000000000..fe8b242d2060
--- /dev/null
+++ b/arch/arm/mach-kirkwood/rd88f6281-setup.c
@@ -0,0 +1,112 @@
+/*
+ * arch/arm/mach-kirkwood/rd88f6281-setup.c
+ *
+ * Marvell RD-88F6281 Reference 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/pci.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/nand.h>
+#include <linux/timer.h>
+#include <linux/ata_platform.h>
+#include <linux/mv643xx_eth.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <asm/arch/kirkwood.h>
+#include <asm/plat-orion/orion_nand.h>
+#include "common.h"
+
+static struct mtd_partition rd88f6281_nand_parts[] = {
+	{
+		.name = "u-boot",
+		.offset = 0,
+		.size = SZ_1M
+	}, {
+		.name = "uImage",
+		.offset = MTDPART_OFS_NXTBLK,
+		.size = SZ_2M
+	}, {
+		.name = "root",
+		.offset = MTDPART_OFS_NXTBLK,
+		.size = MTDPART_SIZ_FULL
+	},
+};
+
+static struct resource rd88f6281_nand_resource = {
+	.flags		= IORESOURCE_MEM,
+	.start		= KIRKWOOD_NAND_MEM_PHYS_BASE,
+	.end		= KIRKWOOD_NAND_MEM_PHYS_BASE +
+			  KIRKWOOD_NAND_MEM_SIZE - 1,
+};
+
+static struct orion_nand_data rd88f6281_nand_data = {
+	.parts		= rd88f6281_nand_parts,
+	.nr_parts	= ARRAY_SIZE(rd88f6281_nand_parts),
+	.cle		= 0,
+	.ale		= 1,
+	.width		= 8,
+};
+
+static struct platform_device rd88f6281_nand_flash = {
+	.name		= "orion_nand",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &rd88f6281_nand_data,
+	},
+	.resource	= &rd88f6281_nand_resource,
+	.num_resources	= 1,
+};
+
+static struct mv643xx_eth_platform_data rd88f6281_ge00_data = {
+	.phy_addr	= -1,
+};
+
+static struct mv_sata_platform_data rd88f6281_sata_data = {
+	.n_ports	= 2,
+};
+
+static void __init rd88f6281_init(void)
+{
+	/*
+	 * Basic setup. Needs to be called early.
+	 */
+	kirkwood_init();
+
+	kirkwood_ehci_init();
+	kirkwood_ge00_init(&rd88f6281_ge00_data);
+	kirkwood_rtc_init();
+	kirkwood_sata_init(&rd88f6281_sata_data);
+	kirkwood_uart0_init();
+	kirkwood_uart1_init();
+
+	platform_device_register(&rd88f6281_nand_flash);
+}
+
+static int __init rd88f6281_pci_init(void)
+{
+	if (machine_is_rd88f6281())
+		kirkwood_pcie_init();
+
+	return 0;
+}
+subsys_initcall(rd88f6281_pci_init);
+
+MACHINE_START(RD88F6281, "Marvell RD-88F6281 Reference Board")
+	/* Maintainer: Saeed Bishara <saeed@marvell.com> */
+	.phys_io	= KIRKWOOD_REGS_PHYS_BASE,
+	.io_pg_offst	= ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
+	.boot_params	= 0x00000100,
+	.init_machine	= rd88f6281_init,
+	.map_io		= kirkwood_map_io,
+	.init_irq	= kirkwood_init_irq,
+	.timer		= &kirkwood_timer,
+MACHINE_END
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 3b90051c0e05..a7a6efec8974 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
+	depends on ARCH_ORION5X || ARCH_LOKI || ARCH_KIRKWOOD
 	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 FOOBAR
+	depends on ARCH_KIRKWOOD
 	default y
 	select OUTER_CACHE
 	help