Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS update from Ralf Baechle:
 "Cleanups and fixes for breakage that occured earlier during this merge
  phase.  Also a few patches that didn't make the first pull request.
  Of those is the Alchemy work that merges code for many of the SOCs and
  evaluation boards thus among other code shrinkage, reduces the number
  of MIPS defconfigs by 5."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (22 commits)
  MIPS: SNI: Switch RM400 serial to SCCNXP driver
  MIPS: Remove unused empty_bad_pmd_table[] declaration.
  MIPS: MT: Remove kspd.
  MIPS: Malta: Fix section mismatch.
  MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
  MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
  MIPS: Alchemy: merge PB1550 support into DB1550 code
  MIPS: Alchemy: Single kernel for DB1200/1300/1550
  MIPS: Optimize TLB refill for RI/XI configurations.
  MIPS: proc: Cleanup printing of ASEs.
  MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
  MIPS: Add detection of DSP ASE Revision 2.
  MIPS: Optimize pgd_init and pmd_init
  MIPS: perf: Add perf functionality for BMIPS5000
  MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
  MIPS: perf: Remove unnecessary #ifdef
  MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
  MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
  MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
  vmlinux.lds.h: Allow architectures to add sections to the front of .bss
  ...

12 files changed, 362 insertions, 790 deletions

diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index 0faaab24376..c8862bdc2ff 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -27,7 +27,7 @@ config MIPS_MTX1
 	select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1000
-	bool "Alchemy DB1000/DB1500/DB1100 boards"
+	bool "Alchemy DB1000/DB1500/DB1100 PB1500/1100 boards"
 	select ALCHEMY_GPIOINT_AU1000
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
@@ -36,57 +36,15 @@ config MIPS_DB1000
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_HAS_EARLY_PRINTK
 
-config MIPS_DB1200
-	bool "Alchemy DB1200/PB1200 board"
-	select ALCHEMY_GPIOINT_AU1000
-	select DMA_COHERENT
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select SYS_HAS_EARLY_PRINTK
-
-config MIPS_DB1300
-	bool "NetLogic DB1300 board"
-	select ALCHEMY_GPIOINT_AU1300
-	select DMA_COHERENT
-	select MIPS_DISABLE_OBSOLETE_IDE
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select SYS_HAS_EARLY_PRINTK
-
-config MIPS_DB1550
-	bool "Alchemy DB1550 board"
-	select ALCHEMY_GPIOINT_AU1000
+config MIPS_DB1235
+	bool "Alchemy DB1200/PB1200/DB1300/DB1550/PB1550 boards"
+	select ARCH_REQUIRE_GPIOLIB
 	select HW_HAS_PCI
 	select DMA_COHERENT
 	select MIPS_DISABLE_OBSOLETE_IDE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_HAS_EARLY_PRINTK
 
-config MIPS_PB1100
-	bool "Alchemy PB1100 board"
-	select ALCHEMY_GPIOINT_AU1000
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select SWAP_IO_SPACE
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select SYS_HAS_EARLY_PRINTK
-
-config MIPS_PB1500
-	bool "Alchemy PB1500 board"
-	select ALCHEMY_GPIOINT_AU1000
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	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/Platform b/arch/mips/alchemy/Platform
index 7956274de15..942c5800a68 100644
--- a/arch/mips/alchemy/Platform
+++ b/arch/mips/alchemy/Platform
@@ -30,25 +30,11 @@ cflags-$(CONFIG_MIPS_DB1000)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
 load-$(CONFIG_MIPS_DB1000)	+= 0xffffffff80100000
 
 #
-# AMD Alchemy Db1550 eval board
+# AMD Alchemy Db1200/Pb1200/Db1550/Db1300 eval boards
 #
-platform-$(CONFIG_MIPS_DB1550)	+= alchemy/devboards/
-cflags-$(CONFIG_MIPS_DB1550)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
-load-$(CONFIG_MIPS_DB1550)	+= 0xffffffff80100000
-
-#
-# AMD Alchemy Db1200/Pb1200 eval boards
-#
-platform-$(CONFIG_MIPS_DB1200)	+= alchemy/devboards/
-cflags-$(CONFIG_MIPS_DB1200)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
-load-$(CONFIG_MIPS_DB1200)	+= 0xffffffff80100000
-
-#
-# NetLogic DBAu1300 development platform
-#
-platform-$(CONFIG_MIPS_DB1300)	+= alchemy/devboards/
-cflags-$(CONFIG_MIPS_DB1300)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
-load-$(CONFIG_MIPS_DB1300)	+= 0xffffffff80100000
+platform-$(CONFIG_MIPS_DB1235)	+= alchemy/devboards/
+cflags-$(CONFIG_MIPS_DB1235)	+= -I$(srctree)/arch/mips/include/asm/mach-db1x00
+load-$(CONFIG_MIPS_DB1235)	+= 0xffffffff80100000
 
 #
 # 4G-Systems MTX-1 "MeshCube" wireless router
diff --git a/arch/mips/alchemy/devboards/Makefile b/arch/mips/alchemy/devboards/Makefile
index c9e747dd9fc..15bf7306648 100644
--- a/arch/mips/alchemy/devboards/Makefile
+++ b/arch/mips/alchemy/devboards/Makefile
@@ -4,10 +4,5 @@
 
 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_DB1200)	+= db1200.o
-obj-$(CONFIG_MIPS_DB1300)	+= db1300.o
-obj-$(CONFIG_MIPS_DB1550)	+= db1550.o
+obj-$(CONFIG_MIPS_DB1235)	+= db1235.o db1200.o db1300.o db1550.o
diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index 1b81dbf6b80..8187845650f 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -1,5 +1,5 @@
 /*
- * DBAu1000/1500/1100 board support
+ * DBAu1000/1500/1100 PBAu1100/1500 board support
  *
  * Copyright 2000, 2008 MontaVista Software Inc.
  * Author: MontaVista Software, Inc. <source@mvista.com>
@@ -52,6 +52,11 @@ static const char *board_type_str(void)
 		return "DB1500";
 	case BCSR_WHOAMI_DB1100:
 		return "DB1100";
+	case BCSR_WHOAMI_PB1500:
+	case BCSR_WHOAMI_PB1500R2:
+		return "PB1500";
+	case BCSR_WHOAMI_PB1100:
+		return "PB1100";
 	default:
 		return "(unknown)";
 	}
@@ -111,7 +116,9 @@ static struct platform_device db1500_pci_host_dev = {
 
 static int __init db1500_pci_init(void)
 {
-	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1500)
+	int id = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
+	if ((id == BCSR_WHOAMI_DB1500) || (id == BCSR_WHOAMI_PB1500) ||
+	    (id == BCSR_WHOAMI_PB1500R2))
 		return platform_device_register(&db1500_pci_host_dev);
 	return 0;
 }
@@ -199,27 +206,37 @@ static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
 
 static int db1100_mmc_cd_setup(void *mmc_host, int en)
 {
-	int ret = 0;
+	int ret = 0, irq;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		irq = AU1100_GPIO19_INT;
+	else
+		irq = AU1100_GPIO14_INT;	/* PB1100 SD0 CD# */
 
 	if (en) {
-		irq_set_irq_type(AU1100_GPIO19_INT, IRQ_TYPE_EDGE_BOTH);
-		ret = request_irq(AU1100_GPIO19_INT, db1100_mmc_cd, 0,
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
+		ret = request_irq(irq, db1100_mmc_cd, 0,
 				  "sd0_cd", mmc_host);
 	} else
-		free_irq(AU1100_GPIO19_INT, mmc_host);
+		free_irq(irq, mmc_host);
 	return ret;
 }
 
 static int db1100_mmc1_cd_setup(void *mmc_host, int en)
 {
-	int ret = 0;
+	int ret = 0, irq;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		irq = AU1100_GPIO20_INT;
+	else
+		irq = AU1100_GPIO15_INT;	/* PB1100 SD1 CD# */
 
 	if (en) {
-		irq_set_irq_type(AU1100_GPIO20_INT, IRQ_TYPE_EDGE_BOTH);
-		ret = request_irq(AU1100_GPIO20_INT, db1100_mmc_cd, 0,
+		irq_set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
+		ret = request_irq(irq, db1100_mmc_cd, 0,
 				  "sd1_cd", mmc_host);
 	} else
-		free_irq(AU1100_GPIO20_INT, mmc_host);
+		free_irq(irq, mmc_host);
 	return ret;
 }
 
@@ -236,11 +253,18 @@ static int db1100_mmc_card_inserted(void *mmc_host)
 
 static void db1100_mmc_set_power(void *mmc_host, int state)
 {
+	int bit;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		bit = BCSR_BOARD_SD0PWR;
+	else
+		bit = BCSR_BOARD_PB1100_SD0PWR;
+
 	if (state) {
-		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD0PWR);
+		bcsr_mod(BCSR_BOARD, 0, bit);
 		msleep(400);	/* stabilization time */
 	} else
-		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD0PWR, 0);
+		bcsr_mod(BCSR_BOARD, bit, 0);
 }
 
 static void db1100_mmcled_set(struct led_classdev *led, enum led_brightness b)
@@ -267,11 +291,18 @@ static int db1100_mmc1_card_inserted(void *mmc_host)
 
 static void db1100_mmc1_set_power(void *mmc_host, int state)
 {
+	int bit;
+
+	if (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)) == BCSR_WHOAMI_DB1100)
+		bit = BCSR_BOARD_SD1PWR;
+	else
+		bit = BCSR_BOARD_PB1100_SD1PWR;
+
 	if (state) {
-		bcsr_mod(BCSR_BOARD, 0, BCSR_BOARD_SD1PWR);
+		bcsr_mod(BCSR_BOARD, 0, bit);
 		msleep(400);	/* stabilization time */
 	} else
-		bcsr_mod(BCSR_BOARD, BCSR_BOARD_SD1PWR, 0);
+		bcsr_mod(BCSR_BOARD, bit, 0);
 }
 
 static void db1100_mmc1led_set(struct led_classdev *led, enum led_brightness b)
@@ -480,13 +511,12 @@ static struct platform_device *db1100_devs[] = {
 	&db1100_mmc0_dev,
 	&db1100_mmc1_dev,
 	&db1000_irda_dev,
-	&db1100_spi_dev,
 };
 
 static int __init db1000_dev_init(void)
 {
 	int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
-	int c0, c1, d0, d1, s0, s1;
+	int c0, c1, d0, d1, s0, s1, flashsize = 32,  twosocks = 1;
 	unsigned long pfc;
 
 	if (board == BCSR_WHOAMI_DB1500) {
@@ -522,6 +552,7 @@ static int __init db1000_dev_init(void)
 					ARRAY_SIZE(db1100_spi_info));
 
 		platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
+		platform_device_register(&db1100_spi_dev);
 	} else if (board == BCSR_WHOAMI_DB1000) {
 		c0 = AU1000_GPIO2_INT;
 		c1 = AU1000_GPIO5_INT;
@@ -530,15 +561,42 @@ static int __init db1000_dev_init(void)
 		s0 = AU1000_GPIO1_INT;
 		s1 = AU1000_GPIO4_INT;
 		platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
+	} else if ((board == BCSR_WHOAMI_PB1500) ||
+		   (board == BCSR_WHOAMI_PB1500R2)) {
+		c0 = AU1500_GPIO203_INT;
+		d0 = AU1500_GPIO201_INT;
+		s0 = AU1500_GPIO202_INT;
+		twosocks = 0;
+		flashsize = 64;
+		/* RTC and daughtercard irqs */
+		irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
+		/* EPSON S1D13806 0x1b000000
+		 * SRAM 1MB/2MB   0x1a000000
+		 * DS1693 RTC	  0x0c000000
+		 */
+	} else if (board == BCSR_WHOAMI_PB1100) {
+		c0 = AU1100_GPIO11_INT;
+		d0 = AU1100_GPIO9_INT;
+		s0 = AU1100_GPIO10_INT;
+		twosocks = 0;
+		flashsize = 64;
+		/* pendown, rtc, daughtercard irqs */
+		irq_set_irq_type(AU1100_GPIO8_INT, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(AU1100_GPIO12_INT, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(AU1100_GPIO13_INT, IRQ_TYPE_LEVEL_LOW);
+		/* EPSON S1D13806 0x1b000000
+		 * SRAM 1MB/2MB   0x1a000000
+		 * DiskOnChip	  0x0d000000
+		 * DS1693 RTC	  0x0c000000
+		 */
+		platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
 	} else
 		return 0; /* unknown board, no further dev setup to do */
 
 	irq_set_irq_type(d0, IRQ_TYPE_EDGE_BOTH);
-	irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH);
 	irq_set_irq_type(c0, IRQ_TYPE_LEVEL_LOW);
-	irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW);
 	irq_set_irq_type(s0, IRQ_TYPE_LEVEL_LOW);
-	irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW);
 
 	db1x_register_pcmcia_socket(
 		AU1000_PCMCIA_ATTR_PHYS_ADDR,
@@ -549,17 +607,23 @@ static int __init db1000_dev_init(void)
 		AU1000_PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
 		c0, d0,	/*s0*/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,
-		c1, d1,	/*s1*/0, 0, 1);
+	if (twosocks) {
+		irq_set_irq_type(d1, IRQ_TYPE_EDGE_BOTH);
+		irq_set_irq_type(c1, IRQ_TYPE_LEVEL_LOW);
+		irq_set_irq_type(s1, IRQ_TYPE_LEVEL_LOW);
+
+		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,
+			c1, d1,	/*s1*/0, 0, 1);
+	}
 
 	platform_add_devices(db1x00_devs, ARRAY_SIZE(db1x00_devs));
-	db1x_register_norflash(32 << 20, 4 /* 32bit */, F_SWAPPED);
+	db1x_register_norflash(flashsize << 20, 4 /* 32bit */, F_SWAPPED);
 	return 0;
 }
 device_initcall(db1000_dev_init);
diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c
index bf2248474fa..299b7d202be 100644
--- a/arch/mips/alchemy/devboards/db1200.c
+++ b/arch/mips/alchemy/devboards/db1200.c
@@ -45,25 +45,9 @@
 
 #include "platform.h"
 
-static const char *board_type_str(void)
-{
-	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
-	case BCSR_WHOAMI_PB1200_DDR1:
-	case BCSR_WHOAMI_PB1200_DDR2:
-		return "PB1200";
-	case BCSR_WHOAMI_DB1200:
-		return "DB1200";
-	default:
-		return "(unknown)";
-	}
-}
+const char *get_system_type(void);
 
-const char *get_system_type(void)
-{
-	return board_type_str();
-}
-
-static int __init detect_board(void)
+static int __init db1200_detect_board(void)
 {
 	int bid;
 
@@ -96,19 +80,17 @@ static int __init detect_board(void)
 	return 1;	/* it's neither */
 }
 
-void __init board_setup(void)
+int __init db1200_board_setup(void)
 {
 	unsigned long freq0, clksrc, div, pfc;
 	unsigned short whoami;
 
-	if (detect_board()) {
-		printk(KERN_ERR "NOT running on a DB1200/PB1200 board!\n");
-		return;
-	}
+	if (db1200_detect_board())
+		return -ENODEV;
 
 	whoami = bcsr_read(BCSR_WHOAMI);
 	printk(KERN_INFO "Alchemy/AMD/RMI %s Board, CPLD Rev %d"
-		"  Board-ID %d  Daughtercard ID %d\n", board_type_str(),
+		"  Board-ID %d  Daughtercard ID %d\n", get_system_type(),
 		(whoami >> 4) & 0xf, (whoami >> 8) & 0xf, whoami & 0xf);
 
 	/* SMBus/SPI on PSC0, Audio on PSC1 */
@@ -138,6 +120,8 @@ void __init board_setup(void)
 	clksrc = SYS_CS_MUX_FQ0 << SYS_CS_ME0_BIT;
 	__raw_writel(clksrc, (void __iomem *)SYS_CLKSRC);
 	wmb();
+
+	return 0;
 }
 
 /******************************************************************************/
@@ -796,7 +780,7 @@ static int __init pb1200_res_fixup(void)
 	return 0;
 }
 
-static int __init db1200_dev_init(void)
+int __init db1200_dev_setup(void)
 {
 	unsigned long pfc;
 	unsigned short sw;
@@ -846,7 +830,7 @@ static int __init db1200_dev_init(void)
 	gpio_request(215, "otg-vbus");
 	gpio_direction_output(215, 1);
 
-	printk(KERN_INFO "%s device configuration:\n", board_type_str());
+	printk(KERN_INFO "%s device configuration:\n", get_system_type());
 
 	sw = bcsr_read(BCSR_SWITCHES);
 	if (sw & BCSR_SWITCHES_DIP_8) {
@@ -922,4 +906,3 @@ static int __init db1200_dev_init(void)
 
 	return 0;
 }
-device_initcall(db1200_dev_init);
diff --git a/arch/mips/alchemy/devboards/db1235.c b/arch/mips/alchemy/devboards/db1235.c
new file mode 100644
index 00000000000..c76a90f7866
--- /dev/null
+++ b/arch/mips/alchemy/devboards/db1235.c
@@ -0,0 +1,94 @@
+/*
+ * DB1200/PB1200 / DB1550 / DB1300 board support.
+ *
+ * These 4 boards can reliably be supported in a single kernel image.
+ */
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-db1x00/bcsr.h>
+
+int __init db1200_board_setup(void);
+int __init db1200_dev_setup(void);
+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(int);
+
+static const char *board_type_str(void)
+{
+	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+	case BCSR_WHOAMI_PB1200_DDR1:
+	case BCSR_WHOAMI_PB1200_DDR2:
+		return "PB1200";
+	case BCSR_WHOAMI_DB1200:
+		return "DB1200";
+	case BCSR_WHOAMI_DB1300:
+		return "DB1300";
+	case BCSR_WHOAMI_DB1550:
+		return "DB1550";
+	case BCSR_WHOAMI_PB1550_SDR:
+	case BCSR_WHOAMI_PB1550_DDR:
+		return "PB1550";
+	default:
+		return "(unknown)";
+	}
+}
+
+const char *get_system_type(void)
+{
+	return board_type_str();
+}
+
+void __init board_setup(void)
+{
+	int ret;
+
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1550:
+		ret = db1550_board_setup();
+		break;
+	case ALCHEMY_CPU_AU1200:
+		ret = db1200_board_setup();
+		break;
+	case ALCHEMY_CPU_AU1300:
+		ret = db1300_board_setup();
+		break;
+	default:
+		pr_err("unsupported CPU on board\n");
+		ret = -ENODEV;
+	}
+	if (ret)
+		panic("cannot initialize board support\n");
+}
+
+int __init db1235_arch_init(void)
+{
+	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);
+
+int __init db1235_dev_init(void)
+{
+	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
+	case BCSR_WHOAMI_PB1200_DDR1:
+	case BCSR_WHOAMI_PB1200_DDR2:
+	case BCSR_WHOAMI_DB1200:
+		return db1200_dev_setup();
+	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;
+}
+device_initcall(db1235_dev_init);
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
index c56e0246694..cdf37cbd3d1 100644
--- a/arch/mips/alchemy/devboards/db1300.c
+++ b/arch/mips/alchemy/devboards/db1300.c
@@ -110,11 +110,6 @@ static void __init db1300_gpio_config(void)
 	au1300_set_dbdma_gpio(1, AU1300_PIN_FG3AUX);
 }
 
-char *get_system_type(void)
-{
-	return "DB1300";
-}
-
 /**********************************************************************/
 
 static void au1300_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
@@ -701,7 +696,7 @@ static struct platform_device *db1300_dev[] __initdata = {
 	&db1300_sndi2s_dev,
 };
 
-static int __init db1300_device_init(void)
+int __init db1300_dev_setup(void)
 {
 	int swapped, cpldirq;
 
@@ -758,10 +753,9 @@ static int __init db1300_device_init(void)
 
 	return platform_add_devices(db1300_dev, ARRAY_SIZE(db1300_dev));
 }
-device_initcall(db1300_device_init);
 
 
-void __init board_setup(void)
+int __init db1300_board_setup(void)
 {
 	unsigned short whoami;
 
@@ -779,4 +773,6 @@ void __init board_setup(void)
 	alchemy_uart_enable(AU1300_UART0_PHYS_ADDR);
 	alchemy_uart_enable(AU1300_UART1_PHYS_ADDR);
 	alchemy_uart_enable(AU1300_UART3_PHYS_ADDR);
+
+	return 0;
 }
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
index 9eb79062f46..5a9ae609542 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>
  */
@@ -17,34 +17,29 @@
 #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"
 
-
-const char *get_system_type(void)
-{
-	return "DB1550";
-}
-
 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
@@ -57,23 +52,27 @@ 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 */
 }
 
-void __init board_setup(void)
+int __init db1550_board_setup(void)
 {
 	unsigned short whoami;
 
 	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();
+	return 0;
 }
 
 /*****************************************************************************/
@@ -194,6 +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[] = {
@@ -394,6 +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,
@@ -417,7 +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,
@@ -430,15 +484,16 @@ static struct platform_device *db1550_devs[] __initdata = {
 };
 
 /* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
-static int __init db1550_pci_init(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);
 }
-arch_initcall(db1550_pci_init);
 
-static int __init db1550_dev_init(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# */
@@ -447,6 +502,75 @@ static int __init db1550_dev_init(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,
@@ -467,29 +591,11 @@ static int __init db1550_dev_init(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));
 }
-device_initcall(db1550_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1100.c b/arch/mips/alchemy/devboards/pb1100.c
deleted file mode 100644
index 78c77a44a31..00000000000
--- a/arch/mips/alchemy/devboards/pb1100.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Pb1100 board platform device registration
- *
- * Copyright (C) 2009 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/delay.h>
-#include <linux/gpio.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_device.h>
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-db1x00/bcsr.h>
-#include <prom.h>
-#include "platform.h"
-
-const char *get_system_type(void)
-{
-	return "PB1100";
-}
-
-void __init board_setup(void)
-{
-	volatile void __iomem *base = (volatile void __iomem *)0xac000000UL;
-
-	bcsr_init(DB1000_BCSR_PHYS_ADDR,
-		  DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
-
-	/* Set AUX clock to 12 MHz * 8 = 96 MHz */
-	au_writel(8, SYS_AUXPLL);
-	alchemy_gpio1_input_enable();
-	udelay(100);
-
-#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
-	{
-		u32 pin_func, sys_freqctrl, sys_clksrc;
-
-		/* Configure pins GPIO[14:9] as GPIO */
-		pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_UR3;
-
-		/* Zero and disable FREQ2 */
-		sys_freqctrl = au_readl(SYS_FREQCTRL0);
-		sys_freqctrl &= ~0xFFF00000;
-		au_writel(sys_freqctrl, SYS_FREQCTRL0);
-
-		/* Zero and disable USBH/USBD/IrDA clock */
-		sys_clksrc = au_readl(SYS_CLKSRC);
-		sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
-		au_writel(sys_clksrc, SYS_CLKSRC);
-
-		sys_freqctrl = au_readl(SYS_FREQCTRL0);
-		sys_freqctrl &= ~0xFFF00000;
-
-		sys_clksrc = au_readl(SYS_CLKSRC);
-		sys_clksrc &= ~(SYS_CS_CIR | SYS_CS_DIR | SYS_CS_MIR_MASK);
-
-		/* FREQ2 = aux / 2 = 48 MHz */
-		sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) |
-				SYS_FC_FE2 | SYS_FC_FS2;
-		au_writel(sys_freqctrl, SYS_FREQCTRL0);
-
-		/*
-		 * Route 48 MHz FREQ2 into USBH/USBD/IrDA
-		 */
-		sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MIR_BIT;
-		au_writel(sys_clksrc, SYS_CLKSRC);
-
-		/* Setup the static bus controller */
-		au_writel(0x00000002, MEM_STCFG3);  /* type = PCMCIA */
-		au_writel(0x280E3D07, MEM_STTIME3); /* 250ns cycle time */
-		au_writel(0x10000000, MEM_STADDR3); /* any PCMCIA select */
-
-		/*
-		 * Get USB Functionality pin state (device vs host drive pins).
-		 */
-		pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB;
-		/* 2nd USB port is USB host. */
-		pin_func |= SYS_PF_USB;
-		au_writel(pin_func, SYS_PINFUNC);
-	}
-#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
-
-	/* Enable sys bus clock divider when IDLE state or no bus activity. */
-	au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
-
-	/* Enable the RTC if not already enabled. */
-	if (!(readb(base + 0x28) & 0x20)) {
-		writeb(readb(base + 0x28) | 0x20, base + 0x28);
-		au_sync();
-	}
-	/* Put the clock in BCD mode. */
-	if (readb(base + 0x2C) & 0x4) { /* reg B */
-		writeb(readb(base + 0x2c) & ~0x4, base + 0x2c);
-		au_sync();
-	}
-}
-
-/******************************************************************************/
-
-static struct resource au1100_lcd_resources[] = {
-	[0] = {
-		.start	= AU1100_LCD_PHYS_ADDR,
-		.end	= AU1100_LCD_PHYS_ADDR + 0x800 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= AU1100_LCD_INT,
-		.end	= AU1100_LCD_INT,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
-
-static struct platform_device au1100_lcd_device = {
-	.name		= "au1100-lcd",
-	.id		= 0,
-	.dev = {
-		.dma_mask		= &au1100_lcd_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	},
-	.num_resources	= ARRAY_SIZE(au1100_lcd_resources),
-	.resource	= au1100_lcd_resources,
-};
-
-static int __init pb1100_dev_init(void)
-{
-	int swapped;
-
-	irq_set_irq_type(AU1100_GPIO9_INT, IRQF_TRIGGER_LOW); /* PCCD# */
-	irq_set_irq_type(AU1100_GPIO10_INT, IRQF_TRIGGER_LOW); /* PCSTSCHG# */
-	irq_set_irq_type(AU1100_GPIO11_INT, IRQF_TRIGGER_LOW); /* PCCard# */
-	irq_set_irq_type(AU1100_GPIO13_INT, IRQF_TRIGGER_LOW); /* DC_IRQ# */
-
-	/* PCMCIA. single socket, identical to Pb1500 */
-	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,
-		AU1100_GPIO11_INT, AU1100_GPIO9_INT,	 /* card / insert */
-		/*AU1100_GPIO10_INT*/0, 0, 0); /* stschg / eject / id */
-
-	swapped = bcsr_read(BCSR_STATUS) &  BCSR_STATUS_DB1000_SWAPBOOT;
-	db1x_register_norflash(64 * 1024 * 1024, 4, swapped);
-	platform_device_register(&au1100_lcd_device);
-
-	return 0;
-}
-device_initcall(pb1100_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1500.c b/arch/mips/alchemy/devboards/pb1500.c
deleted file mode 100644
index 232fee94200..00000000000
--- a/arch/mips/alchemy/devboards/pb1500.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * Pb1500 board support.
- *
- * Copyright (C) 2009 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/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/gpio.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-db1x00/bcsr.h>
-#include <prom.h>
-#include "platform.h"
-
-const char *get_system_type(void)
-{
-	return "PB1500";
-}
-
-void __init board_setup(void)
-{
-	u32 pin_func;
-	u32 sys_freqctrl, sys_clksrc;
-
-	bcsr_init(DB1000_BCSR_PHYS_ADDR,
-		  DB1000_BCSR_PHYS_ADDR + DB1000_BCSR_HEXLED_OFS);
-
-	sys_clksrc = sys_freqctrl = pin_func = 0;
-	/* Set AUX clock to 12 MHz * 8 = 96 MHz */
-	au_writel(8, SYS_AUXPLL);
-	alchemy_gpio1_input_enable();
-	udelay(100);
-
-	/* GPIO201 is input for PCMCIA card detect */
-	/* GPIO203 is input for PCMCIA interrupt request */
-	alchemy_gpio_direction_input(201);
-	alchemy_gpio_direction_input(203);
-
-#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
-
-	/* Zero and disable FREQ2 */
-	sys_freqctrl = au_readl(SYS_FREQCTRL0);
-	sys_freqctrl &= ~0xFFF00000;
-	au_writel(sys_freqctrl, SYS_FREQCTRL0);
-
-	/* zero and disable USBH/USBD clocks */
-	sys_clksrc = au_readl(SYS_CLKSRC);
-	sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
-			SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK);
-	au_writel(sys_clksrc, SYS_CLKSRC);
-
-	sys_freqctrl = au_readl(SYS_FREQCTRL0);
-	sys_freqctrl &= ~0xFFF00000;
-
-	sys_clksrc = au_readl(SYS_CLKSRC);
-	sys_clksrc &= ~(SYS_CS_CUD | SYS_CS_DUD | SYS_CS_MUD_MASK |
-			SYS_CS_CUH | SYS_CS_DUH | SYS_CS_MUH_MASK);
-
-	/* FREQ2 = aux/2 = 48 MHz */
-	sys_freqctrl |= (0 << SYS_FC_FRDIV2_BIT) | SYS_FC_FE2 | SYS_FC_FS2;
-	au_writel(sys_freqctrl, SYS_FREQCTRL0);
-
-	/*
-	 * Route 48MHz FREQ2 into USB Host and/or Device
-	 */
-	sys_clksrc |= SYS_CS_MUX_FQ2 << SYS_CS_MUH_BIT;
-	au_writel(sys_clksrc, SYS_CLKSRC);
-
-	pin_func = au_readl(SYS_PINFUNC) & ~SYS_PF_USB;
-	/* 2nd USB port is USB host */
-	pin_func |= SYS_PF_USB;
-	au_writel(pin_func, SYS_PINFUNC);
-#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
-
-#ifdef CONFIG_PCI
-	{
-		void __iomem *base =
-				(void __iomem *)KSEG1ADDR(AU1500_PCI_PHYS_ADDR);
-		/* Setup PCI bus controller */
-		__raw_writel(0x00003fff, base + PCI_REG_CMEM);
-		__raw_writel(0xf0000000, base + PCI_REG_MWMASK_DEV);
-		__raw_writel(0, base + PCI_REG_MWBASE_REV_CCL);
-		__raw_writel(0x02a00356, base + PCI_REG_STATCMD);
-		__raw_writel(0x00003c04, base + PCI_REG_PARAM);
-		__raw_writel(0x00000008, base + PCI_REG_MBAR);
-		wmb();
-	}
-#endif
-
-	/* Enable sys bus clock divider when IDLE state or no bus activity. */
-	au_writel(au_readl(SYS_POWERCTRL) | (0x3 << 5), SYS_POWERCTRL);
-
-	/* Enable the RTC if not already enabled */
-	if (!(au_readl(0xac000028) & 0x20)) {
-		printk(KERN_INFO "enabling clock ...\n");
-		au_writel((au_readl(0xac000028) | 0x20), 0xac000028);
-	}
-	/* Put the clock in BCD mode */
-	if (au_readl(0xac00002c) & 0x4) { /* reg B */
-		au_writel(au_readl(0xac00002c) & ~0x4, 0xac00002c);
-		au_sync();
-	}
-}
-
-/******************************************************************************/
-
-static int pb1500_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
-{
-	if ((slot < 12) || (slot > 13) || pin == 0)
-		return -1;
-	if (slot == 12)
-		return (pin == 1) ? AU1500_PCI_INTA : 0xff;
-	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 pb1500_pci_pd = {
-	.board_map_irq	= pb1500_map_pci_irq,
-	.pci_cfg_set	= PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
-			  PCI_CONFIG_CH |
-#if defined(__MIPSEB__)
-			  PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
-#else
-			  0,
-#endif
-};
-
-static struct platform_device pb1500_pci_host = {
-	.dev.platform_data = &pb1500_pci_pd,
-	.name		= "alchemy-pci",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
-	.resource	= alchemy_pci_host_res,
-};
-
-static int __init pb1500_dev_init(void)
-{
-	int swapped;
-
-	irq_set_irq_type(AU1500_GPIO9_INT,   IRQF_TRIGGER_LOW);   /* CD0# */
-	irq_set_irq_type(AU1500_GPIO10_INT,  IRQF_TRIGGER_LOW);  /* CARD0 */
-	irq_set_irq_type(AU1500_GPIO11_INT,  IRQF_TRIGGER_LOW);  /* STSCHG0# */
-	irq_set_irq_type(AU1500_GPIO204_INT, IRQF_TRIGGER_HIGH);
-	irq_set_irq_type(AU1500_GPIO201_INT, IRQF_TRIGGER_LOW);
-	irq_set_irq_type(AU1500_GPIO202_INT, IRQF_TRIGGER_LOW);
-	irq_set_irq_type(AU1500_GPIO203_INT, IRQF_TRIGGER_LOW);
-	irq_set_irq_type(AU1500_GPIO205_INT, IRQF_TRIGGER_LOW);
-
-	/* PCMCIA. single socket, identical to Pb1100 */
-	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,
-		AU1500_GPIO11_INT, AU1500_GPIO9_INT,	 /* card / insert */
-		/*AU1500_GPIO10_INT*/0, 0, 0); /* stschg / eject / id */
-
-	swapped = bcsr_read(BCSR_STATUS) &  BCSR_STATUS_DB1000_SWAPBOOT;
-	db1x_register_norflash(64 * 1024 * 1024, 4, swapped);
-	platform_device_register(&pb1500_pci_host);
-
-	return 0;
-}
-arch_initcall(pb1500_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1550.c b/arch/mips/alchemy/devboards/pb1550.c
deleted file mode 100644
index b37e7de8d92..00000000000
--- 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/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index f39042e99d0..8df86eb9497 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -36,11 +36,10 @@ void __init prom_init(void)
 
 void prom_putchar(unsigned char c)
 {
-#ifdef CONFIG_MIPS_DB1300
-	alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
-#else
-	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
-#endif
+	if (alchemy_get_cputype() == ALCHEMY_CPU_AU1300)
+		alchemy_uart_putchar(AU1300_UART2_PHYS_ADDR, c);
+	else
+		alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
 }