diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index b4929b94cd7cae65c4da64cee7097fa90c3d1138..6eb66a90a83a979c66e770323b11b78e53a4efbc 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -37,7 +37,7 @@ config MIPS_DB1000
 	select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1235
-	bool "Alchemy DB1200/PB1200/DB1300/DB1550 boards"
+	bool "Alchemy DB1200/PB1200/DB1300/DB1550/PB1550 boards"
 	select ARCH_REQUIRE_GPIOLIB
 	select HW_HAS_PCI
 	select DMA_COHERENT
@@ -62,15 +62,6 @@ config MIPS_PB1500
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_HAS_EARLY_PRINTK
 
-config MIPS_PB1550
-	bool "Alchemy PB1550 board"
-	select ALCHEMY_GPIOINT_AU1000
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select SYS_HAS_EARLY_PRINTK
-
 config MIPS_XXS1500
 	bool "MyCable XXS1500 board"
 	select DMA_NONCOHERENT
diff --git a/arch/mips/alchemy/devboards/Makefile b/arch/mips/alchemy/devboards/Makefile
index f8a962498b2fcabf0660a6077c83fb2502a5063b..fad8a99c7b63f9a8ae5bd6fc620af24201317f69 100644
--- a/arch/mips/alchemy/devboards/Makefile
+++ b/arch/mips/alchemy/devboards/Makefile
@@ -6,6 +6,5 @@ obj-y += bcsr.o platform.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_MIPS_PB1100)	+= pb1100.o
 obj-$(CONFIG_MIPS_PB1500)	+= pb1500.o
-obj-$(CONFIG_MIPS_PB1550)	+= pb1550.o
 obj-$(CONFIG_MIPS_DB1000)	+= db1000.o
 obj-$(CONFIG_MIPS_DB1235)	+= db1235.o db1200.o db1300.o db1550.o
diff --git a/arch/mips/alchemy/devboards/db1235.c b/arch/mips/alchemy/devboards/db1235.c
index 15003eb1f840eb35a7f016e6329c9247e0fd1f2f..c76a90f7866427724d74a4df340ab3de9fdf6d9d 100644
--- a/arch/mips/alchemy/devboards/db1235.c
+++ b/arch/mips/alchemy/devboards/db1235.c
@@ -13,7 +13,7 @@ int __init db1300_board_setup(void);
 int __init db1300_dev_setup(void);
 int __init db1550_board_setup(void);
 int __init db1550_dev_setup(void);
-int __init db1550_pci_setup(void);
+int __init db1550_pci_setup(int);
 
 static const char *board_type_str(void)
 {
@@ -27,6 +27,9 @@ static const char *board_type_str(void)
 		return "DB1300";
 	case BCSR_WHOAMI_DB1550:
 		return "DB1550";
+	case BCSR_WHOAMI_PB1550_SDR:
+	case BCSR_WHOAMI_PB1550_DDR:
+		return "PB1550";
 	default:
 		return "(unknown)";
 	}
@@ -61,8 +64,13 @@ void __init board_setup(void)
 
 int __init db1235_arch_init(void)
 {
-	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1550)
-		return db1550_pci_setup();
+	int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	if (id == BCSR_WHOAMI_DB1550)
+		return db1550_pci_setup(0);
+	else if ((id == BCSR_WHOAMI_PB1550_SDR) ||
+		 (id == BCSR_WHOAMI_PB1550_DDR))
+		return db1550_pci_setup(1);
+
 	return 0;
 }
 arch_initcall(db1235_arch_init);
@@ -77,6 +85,8 @@ int __init db1235_dev_init(void)
 	case BCSR_WHOAMI_DB1300:
 		return db1300_dev_setup();
 	case BCSR_WHOAMI_DB1550:
+	case BCSR_WHOAMI_PB1550_SDR:
+	case BCSR_WHOAMI_PB1550_DDR:
 		return db1550_dev_setup();
 	}
 	return 0;
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
index 7664beed8fa23470fe95f6f2523012ef9fc6d2b4..5a9ae609542879c7e6dcb219d0f3099bc4b939e1 100644
--- a/arch/mips/alchemy/devboards/db1550.c
+++ b/arch/mips/alchemy/devboards/db1550.c
@@ -1,5 +1,5 @@
 /*
- * Alchemy Db1550 board support
+ * Alchemy Db1550/Pb1550 board support
  *
  * (c) 2011 Manuel Lauss <manuel.lauss@googlemail.com>
  */
@@ -17,11 +17,13 @@
 #include <linux/pm.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
+#include <asm/bootinfo.h>
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/au1xxx_eth.h>
 #include <asm/mach-au1x00/au1xxx_dbdma.h>
 #include <asm/mach-au1x00/au1xxx_psc.h>
 #include <asm/mach-au1x00/au1550_spi.h>
+#include <asm/mach-au1x00/au1550nd.h>
 #include <asm/mach-db1x00/bcsr.h>
 #include <prom.h>
 #include "platform.h"
@@ -30,15 +32,14 @@ static void __init db1550_hw_setup(void)
 {
 	void __iomem *base;
 
-	alchemy_gpio_direction_output(203, 0);	/* red led on */
-
 	/* complete SPI setup: link psc0_intclk to a 48MHz source,
-	 * and assign GPIO16 to PSC0_SYNC1 (SPI cs# line)
+	 * and assign GPIO16 to PSC0_SYNC1 (SPI cs# line) as well as PSC1_SYNC
+	 * for AC97 on PB1550.
 	 */
 	base = (void __iomem *)SYS_CLKSRC;
 	__raw_writel(__raw_readl(base) | 0x000001e0, base);
 	base = (void __iomem *)SYS_PINFUNC;
-	__raw_writel(__raw_readl(base) | 1, base);
+	__raw_writel(__raw_readl(base) | 1 | SYS_PF_PSC1_S1, base);
 	wmb();
 
 	/* reset the AC97 codec now, the reset time in the psc-ac97 driver
@@ -51,8 +52,6 @@ static void __init db1550_hw_setup(void)
 	wmb();
 	__raw_writel(PSC_AC97RST_RST, base + PSC_AC97RST_OFFSET);
 	wmb();
-
-	alchemy_gpio_direction_output(202, 0);	/* green led on */
 }
 
 int __init db1550_board_setup(void)
@@ -62,9 +61,14 @@ int __init db1550_board_setup(void)
 	bcsr_init(DB1550_BCSR_PHYS_ADDR,
 		  DB1550_BCSR_PHYS_ADDR + DB1550_BCSR_HEXLED_OFS);
 
-	whoami = bcsr_read(BCSR_WHOAMI);
-	printk(KERN_INFO "Alchemy/AMD DB1550 Board, CPLD Rev %d"
-		"  Board-ID %d  Daughtercard ID %d\n",
+	whoami = bcsr_read(BCSR_WHOAMI); /* PB1550 hexled offset differs */
+	if ((BCSR_WHOAMI_BOARD(whoami) == BCSR_WHOAMI_PB1550_SDR) ||
+	    (BCSR_WHOAMI_BOARD(whoami) == BCSR_WHOAMI_PB1550_DDR))
+		bcsr_init(PB1550_BCSR_PHYS_ADDR,
+			  PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS);
+
+	pr_info("Alchemy/AMD %s Board, CPLD Rev %d Board-ID %d  "	\
+		"Daughtercard ID %d\n", get_system_type(),
 		(whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
 
 	db1550_hw_setup();
@@ -189,6 +193,39 @@ static struct platform_device db1550_nand_dev = {
 	}
 };
 
+static struct au1550nd_platdata pb1550_nand_pd = {
+	.parts		= db1550_nand_parts,
+	.num_parts	= ARRAY_SIZE(db1550_nand_parts),
+	.devwidth	= 0,	/* x8 NAND default, needs fixing up */
+};
+
+static struct platform_device pb1550_nand_dev = {
+	.name		= "au1550-nand",
+	.id		= -1,
+	.resource	= db1550_nand_res,
+	.num_resources	= ARRAY_SIZE(db1550_nand_res),
+	.dev		= {
+		.platform_data	= &pb1550_nand_pd,
+	},
+};
+
+static void __init pb1550_nand_setup(void)
+{
+	int boot_swapboot = (au_readl(MEM_STSTAT) & (0x7 << 1)) |
+			    ((bcsr_read(BCSR_STATUS) >> 6) & 0x1);
+
+	gpio_direction_input(206);	/* de-assert NAND CS# */
+	switch (boot_swapboot) {
+	case 0: case 2: case 8: case 0xC: case 0xD:
+		/* x16 NAND Flash */
+		pb1550_nand_pd.devwidth = 1;
+		/* fallthrough */
+	case 1: case 3: case 9: case 0xE: case 0xF:
+		/* x8 NAND, already set up */
+		platform_device_register(&pb1550_nand_dev);
+	}
+}
+
 /**********************************************************************/
 
 static struct resource au1550_psc0_res[] = {
@@ -389,6 +426,29 @@ static int db1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
 	return -1;
 }
 
+static int pb1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	if ((slot < 12) || (slot > 13) || pin == 0)
+		return -1;
+	if (slot == 12) {
+		switch (pin) {
+		case 1: return AU1500_PCI_INTB;
+		case 2: return AU1500_PCI_INTC;
+		case 3: return AU1500_PCI_INTD;
+		case 4: return AU1500_PCI_INTA;
+		}
+	}
+	if (slot == 13) {
+		switch (pin) {
+		case 1: return AU1500_PCI_INTA;
+		case 2: return AU1500_PCI_INTB;
+		case 3: return AU1500_PCI_INTC;
+		case 4: return AU1500_PCI_INTD;
+		}
+	}
+	return -1;
+}
+
 static struct resource alchemy_pci_host_res[] = {
 	[0] = {
 		.start	= AU1500_PCI_PHYS_ADDR,
@@ -412,7 +472,6 @@ static struct platform_device db1550_pci_host_dev = {
 /**********************************************************************/
 
 static struct platform_device *db1550_devs[] __initdata = {
-	&db1550_nand_dev,
 	&db1550_i2c_dev,
 	&db1550_ac97_dev,
 	&db1550_spi_dev,
@@ -425,14 +484,16 @@ static struct platform_device *db1550_devs[] __initdata = {
 };
 
 /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
-int __init db1550_pci_setup(void)
+int __init db1550_pci_setup(int id)
 {
+	if (id)
+		db1550_pci_pd.board_map_irq = pb1550_map_pci_irq;
 	return platform_device_register(&db1550_pci_host_dev);
 }
 
-int __init db1550_dev_setup(void)
+static void __init db1550_devices(void)
 {
-	int swapped;
+	alchemy_gpio_direction_output(203, 0);	/* red led on */
 
 	irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_EDGE_BOTH);  /* CD0# */
 	irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_EDGE_BOTH);  /* CD1# */
@@ -441,6 +502,75 @@ int __init db1550_dev_setup(void)
 	irq_set_irq_type(AU1550_GPIO21_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG0# */
 	irq_set_irq_type(AU1550_GPIO22_INT, IRQ_TYPE_LEVEL_LOW); /* STSCHG1# */
 
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
+		AU1550_GPIO3_INT, AU1550_GPIO0_INT,
+		/*AU1550_GPIO21_INT*/0, 0, 0);
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004000000,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
+		AU1550_GPIO5_INT, AU1550_GPIO1_INT,
+		/*AU1550_GPIO22_INT*/0, 0, 1);
+
+	platform_device_register(&db1550_nand_dev);
+
+	alchemy_gpio_direction_output(202, 0);	/* green led on */
+}
+
+static void __init pb1550_devices(void)
+{
+	irq_set_irq_type(AU1550_GPIO0_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1550_GPIO1_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1550_GPIO201_205_INT, IRQ_TYPE_LEVEL_HIGH);
+
+	/* enable both PCMCIA card irqs in the shared line */
+	alchemy_gpio2_enable_int(201);	/* socket 0 card irq */
+	alchemy_gpio2_enable_int(202);	/* socket 1 card irq */
+
+	/* Pb1550, like all others, also has statuschange irqs; however they're
+	* wired up on one of the Au1550's shared GPIO201_205 line, which also
+	* services the PCMCIA card interrupts.  So we ignore statuschange and
+	* use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
+	* drivers are used to shared irqs and b) statuschange isn't really use-
+	* ful anyway.
+	*/
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
+		AU1550_GPIO201_205_INT, AU1550_GPIO0_INT, 0, 0, 0);
+
+	db1x_register_pcmcia_socket(
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
+		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
+		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008000000,
+		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
+		AU1550_GPIO201_205_INT, AU1550_GPIO1_INT, 0, 0, 1);
+
+	pb1550_nand_setup();
+}
+
+int __init db1550_dev_setup(void)
+{
+	int swapped, id;
+
+	id = (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) != BCSR_WHOAMI_DB1550);
+
 	i2c_register_board_info(0, db1550_i2c_devs,
 				ARRAY_SIZE(db1550_i2c_devs));
 	spi_register_board_info(db1550_spi_devs,
@@ -461,27 +591,10 @@ int __init db1550_dev_setup(void)
 	    (void __iomem *)KSEG1ADDR(AU1550_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET);
 	wmb();
 
-	db1x_register_pcmcia_socket(
-		AU1000_PCMCIA_ATTR_PHYS_ADDR,
-		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
-		AU1000_PCMCIA_MEM_PHYS_ADDR,
-		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
-		AU1000_PCMCIA_IO_PHYS_ADDR,
-		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
-		AU1550_GPIO3_INT, AU1550_GPIO0_INT,
-		/*AU1550_GPIO21_INT*/0, 0, 0);
-
-	db1x_register_pcmcia_socket(
-		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004000000,
-		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x004400000 - 1,
-		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004000000,
-		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x004400000 - 1,
-		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004000000,
-		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x004010000 - 1,
-		AU1550_GPIO5_INT, AU1550_GPIO1_INT,
-		/*AU1550_GPIO22_INT*/0, 0, 1);
+	id ? pb1550_devices() : db1550_devices();
 
-	swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_DB1000_SWAPBOOT;
+	swapped = bcsr_read(BCSR_STATUS) &
+	       (id ? BCSR_STATUS_PB1550_SWAPBOOT : BCSR_STATUS_DB1000_SWAPBOOT);
 	db1x_register_norflash(128 << 20, 4, swapped);
 
 	return platform_add_devices(db1550_devs, ARRAY_SIZE(db1550_devs));
diff --git a/arch/mips/alchemy/devboards/pb1550.c b/arch/mips/alchemy/devboards/pb1550.c
deleted file mode 100644
index b37e7de8d9209682a4191f86eb69316bd4fdc2de..0000000000000000000000000000000000000000
--- a/arch/mips/alchemy/devboards/pb1550.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * Pb1550 board support.
- *
- * Copyright (C) 2009-2011 Manuel Lauss
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-au1x00/au1xxx_dbdma.h>
-#include <asm/mach-au1x00/au1550nd.h>
-#include <asm/mach-au1x00/gpio.h>
-#include <asm/mach-db1x00/bcsr.h>
-#include "platform.h"
-
-const char *get_system_type(void)
-{
-	return "PB1550";
-}
-
-void __init board_setup(void)
-{
-	u32 pin_func;
-
-	bcsr_init(PB1550_BCSR_PHYS_ADDR,
-		  PB1550_BCSR_PHYS_ADDR + PB1550_BCSR_HEXLED_OFS);
-
-	alchemy_gpio2_enable();
-
-	/*
-	 * Enable PSC1 SYNC for AC'97.  Normaly done in audio driver,
-	 * but it is board specific code, so put it here.
-	 */
-	pin_func = au_readl(SYS_PINFUNC);
-	au_sync();
-	pin_func |= SYS_PF_MUST_BE_SET | SYS_PF_PSC1_S1;
-	au_writel(pin_func, SYS_PINFUNC);
-
-	bcsr_write(BCSR_PCMCIA, 0);	/* turn off PCMCIA power */
-
-	printk(KERN_INFO "AMD Alchemy Pb1550 Board\n");
-}
-
-/******************************************************************************/
-
-static int pb1550_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
-{
-	if ((slot < 12) || (slot > 13) || pin == 0)
-		return -1;
-	if (slot == 12) {
-		switch (pin) {
-		case 1: return AU1500_PCI_INTB;
-		case 2: return AU1500_PCI_INTC;
-		case 3: return AU1500_PCI_INTD;
-		case 4: return AU1500_PCI_INTA;
-		}
-	}
-	if (slot == 13) {
-		switch (pin) {
-		case 1: return AU1500_PCI_INTA;
-		case 2: return AU1500_PCI_INTB;
-		case 3: return AU1500_PCI_INTC;
-		case 4: return AU1500_PCI_INTD;
-		}
-	}
-	return -1;
-}
-
-static struct resource alchemy_pci_host_res[] = {
-	[0] = {
-		.start	= AU1500_PCI_PHYS_ADDR,
-		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct alchemy_pci_platdata pb1550_pci_pd = {
-	.board_map_irq	= pb1550_map_pci_irq,
-};
-
-static struct platform_device pb1550_pci_host = {
-	.dev.platform_data = &pb1550_pci_pd,
-	.name		= "alchemy-pci",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
-	.resource	= alchemy_pci_host_res,
-};
-
-static struct resource au1550_psc2_res[] = {
-	[0] = {
-		.start	= AU1550_PSC2_PHYS_ADDR,
-		.end	= AU1550_PSC2_PHYS_ADDR + 0xfff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= AU1550_PSC2_INT,
-		.end	= AU1550_PSC2_INT,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= AU1550_DSCR_CMD0_PSC2_TX,
-		.end	= AU1550_DSCR_CMD0_PSC2_TX,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		.start	= AU1550_DSCR_CMD0_PSC2_RX,
-		.end	= AU1550_DSCR_CMD0_PSC2_RX,
-		.flags	= IORESOURCE_DMA,
-	},
-};
-
-static struct platform_device pb1550_i2c_dev = {
-	.name		= "au1xpsc_smbus",
-	.id		= 0,	/* bus number */
-	.num_resources	= ARRAY_SIZE(au1550_psc2_res),
-	.resource	= au1550_psc2_res,
-};
-
-static struct mtd_partition pb1550_nand_parts[] = {
-	[0] = {
-		.name	= "NAND FS 0",
-		.offset	= 0,
-		.size	= 8 * 1024 * 1024,
-	},
-	[1] = {
-		.name	= "NAND FS 1",
-		.offset	= MTDPART_OFS_APPEND,
-		.size	= MTDPART_SIZ_FULL,
-	},
-};
-
-static struct au1550nd_platdata pb1550_nand_pd = {
-	.parts		= pb1550_nand_parts,
-	.num_parts	= ARRAY_SIZE(pb1550_nand_parts),
-	.devwidth	= 0,	/* x8 NAND default, needs fixing up */
-};
-
-static struct resource pb1550_nand_res[] = {
-	[0] = {
-		.start	= 0x20000000,
-		.end	= 0x20000fff,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct platform_device pb1550_nand_dev = {
-	.name		= "au1550-nand",
-	.id		= -1,
-	.resource	= pb1550_nand_res,
-	.num_resources	= ARRAY_SIZE(pb1550_nand_res),
-	.dev		= {
-		.platform_data	= &pb1550_nand_pd,
-	},
-};
-
-static void __init pb1550_nand_setup(void)
-{
-	int boot_swapboot = (au_readl(MEM_STSTAT) & (0x7 << 1)) |
-			    ((bcsr_read(BCSR_STATUS) >> 6) & 0x1);
-
-	switch (boot_swapboot) {
-	case 0:
-	case 2:
-	case 8:
-	case 0xC:
-	case 0xD:
-		/* x16 NAND Flash */
-		pb1550_nand_pd.devwidth = 1;
-		/* fallthrough */
-	case 1:
-	case 9:
-	case 3:
-	case 0xE:
-	case 0xF:
-		/* x8 NAND, already set up */
-		platform_device_register(&pb1550_nand_dev);
-	}
-}
-
-static int __init pb1550_dev_init(void)
-{
-	int swapped;
-
-	irq_set_irq_type(AU1550_GPIO0_INT, IRQF_TRIGGER_LOW);
-	irq_set_irq_type(AU1550_GPIO1_INT, IRQF_TRIGGER_LOW);
-	irq_set_irq_type(AU1550_GPIO201_205_INT, IRQF_TRIGGER_HIGH);
-
-	/* enable both PCMCIA card irqs in the shared line */
-	alchemy_gpio2_enable_int(201);
-	alchemy_gpio2_enable_int(202);
-
-	/* Pb1550, like all others, also has statuschange irqs; however they're
-	* wired up on one of the Au1550's shared GPIO201_205 line, which also
-	* services the PCMCIA card interrupts.  So we ignore statuschange and
-	* use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
-	* drivers are used to shared irqs and b) statuschange isn't really use-
-	* ful anyway.
-	*/
-	db1x_register_pcmcia_socket(
-		AU1000_PCMCIA_ATTR_PHYS_ADDR,
-		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
-		AU1000_PCMCIA_MEM_PHYS_ADDR,
-		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
-		AU1000_PCMCIA_IO_PHYS_ADDR,
-		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
-		AU1550_GPIO201_205_INT, AU1550_GPIO0_INT, 0, 0, 0);
-
-	db1x_register_pcmcia_socket(
-		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
-		AU1000_PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
-		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
-		AU1000_PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
-		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008000000,
-		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
-		AU1550_GPIO201_205_INT, AU1550_GPIO1_INT, 0, 0, 1);
-
-	/* NAND setup */
-	gpio_direction_input(206);	/* GPIO206 high */
-	pb1550_nand_setup();
-
-	swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_PB1550_SWAPBOOT;
-	db1x_register_norflash(128 * 1024 * 1024, 4, swapped);
-	platform_device_register(&pb1550_pci_host);
-	platform_device_register(&pb1550_i2c_dev);
-
-	return 0;
-}
-arch_initcall(pb1550_dev_init);
diff --git a/arch/mips/configs/pb1550_defconfig b/arch/mips/configs/pb1550_defconfig
deleted file mode 100644
index e83d6497e8b4edfb8d73983dc88c357e91055f16..0000000000000000000000000000000000000000
--- a/arch/mips/configs/pb1550_defconfig
+++ /dev/null
@@ -1,145 +0,0 @@
-CONFIG_MIPS_ALCHEMY=y
-CONFIG_MIPS_PB1550=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_HZ_100=y
-# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
-CONFIG_LOCALVERSION="-pb1550"
-CONFIG_KERNEL_LZMA=y
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_TINY_RCU=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_EXPERT=y
-# CONFIG_SYSCTL_SYSCALL is not set
-# CONFIG_KALLSYMS is not set
-# CONFIG_PCSPKR_PLATFORM is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-# CONFIG_COMPAT_BRK is not set
-CONFIG_SLAB=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_PCI=y
-CONFIG_PCCARD=y
-# CONFIG_CARDBUS is not set
-CONFIG_PCMCIA_ALCHEMY_DEVBOARD=y
-CONFIG_PM=y
-CONFIG_PM_RUNTIME=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_DIAG is not set
-# CONFIG_IPV6 is not set
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CHAR=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_CFI=y
-CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_PHYSMAP=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_AU1550=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_UB=y
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDECS=y
-CONFIG_BLK_DEV_IDECD=y
-# CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS is not set
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-CONFIG_BLK_DEV_HPT366=y
-CONFIG_NETDEVICES=y
-CONFIG_MARVELL_PHY=y
-CONFIG_DAVICOM_PHY=y
-CONFIG_QSEMI_PHY=y
-CONFIG_LXT_PHY=y
-CONFIG_CICADA_PHY=y
-CONFIG_VITESSE_PHY=y
-CONFIG_SMSC_PHY=y
-CONFIG_BROADCOM_PHY=y
-CONFIG_ICPLUS_PHY=y
-CONFIG_REALTEK_PHY=y
-CONFIG_NATIONAL_PHY=y
-CONFIG_STE10XP=y
-CONFIG_LSI_ET1011C_PHY=y
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-CONFIG_MIPS_AU1X00_ENET=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_WLAN is not set
-# CONFIG_INPUT_MOUSEDEV is not set
-CONFIG_INPUT_EVDEV=y
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_SERIO is not set
-CONFIG_VT_HW_CONSOLE_BINDING=y
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-# CONFIG_SERIAL_8250_PCI is not set
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_HW_RANDOM is not set
-CONFIG_I2C=y
-# CONFIG_I2C_COMPAT is not set
-CONFIG_I2C_CHARDEV=y
-# CONFIG_I2C_HELPER_AUTO is not set
-CONFIG_I2C_AU1550=y
-# CONFIG_HWMON is not set
-# CONFIG_VGA_ARB is not set
-CONFIG_HIDRAW=y
-CONFIG_USB_HIDDEV=y
-CONFIG_USB=y
-CONFIG_USB_DEVICEFS=y
-CONFIG_USB_DYNAMIC_MINORS=y
-CONFIG_USB_SUSPEND=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_EHCI_ROOT_HUB_TT=y
-CONFIG_USB_OHCI_HCD=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_AU1XXX=y
-CONFIG_EXT2_FS=y
-CONFIG_ISO9660_FS=y
-CONFIG_JOLIET=y
-CONFIG_ZISOFS=y
-CONFIG_UDF_FS=y
-CONFIG_VFAT_FS=y
-# CONFIG_PROC_PAGE_MONITOR is not set
-CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
-CONFIG_JFFS2_SUMMARY=y
-CONFIG_JFFS2_COMPRESSION_OPTIONS=y
-CONFIG_JFFS2_LZO=y
-CONFIG_JFFS2_RUBIN=y
-CONFIG_SQUASHFS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_ROOT_NFS=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_CODEPAGE_850=y
-CONFIG_NLS_CODEPAGE_852=y
-CONFIG_NLS_CODEPAGE_1250=y
-CONFIG_NLS_ASCII=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_NLS_ISO8859_15=y
-CONFIG_NLS_UTF8=y
-CONFIG_STRIP_ASM_SYMS=y
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_SCHED_DEBUG is not set
-# CONFIG_FTRACE is not set
-CONFIG_DEBUG_ZBOOT=y
-CONFIG_KEYS=y
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
-CONFIG_SECURITYFS=y