MIPS: Alchemy: devboards: wire up new PCMCIA driver.

Register the PCMCIA driver on all boards supported by it,
get rid of now-unused pcmcia macros in the board headers
(and subsequently empty pb1100/pb1500 ones).

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

16 files changed, 412 insertions, 9 deletions

diff --git a/arch/mips/alchemy/devboards/Makefile b/arch/mips/alchemy/devboards/Makefile
index adc6717..cfda972 100644
--- a/arch/mips/alchemy/devboards/Makefile
+++ b/arch/mips/alchemy/devboards/Makefile
@@ -2,7 +2,7 @@
 # Alchemy Develboards
 #
 
-obj-y += prom.o bcsr.o
+obj-y += prom.o bcsr.o platform.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_MIPS_PB1000)	+= pb1000/
 obj-$(CONFIG_MIPS_PB1100)	+= pb1100/
diff --git a/arch/mips/alchemy/devboards/db1x00/Makefile b/arch/mips/alchemy/devboards/db1x00/Makefile
index ce48d58..613c0c0 100644
--- a/arch/mips/alchemy/devboards/db1x00/Makefile
+++ b/arch/mips/alchemy/devboards/db1x00/Makefile
@@ -5,4 +5,4 @@
 # Makefile for the Alchemy Semiconductor DBAu1xx0 boards.
 #
 
-obj-y := board_setup.o
+obj-y := board_setup.o platform.o
diff --git a/arch/mips/alchemy/devboards/db1x00/board_setup.c b/arch/mips/alchemy/devboards/db1x00/board_setup.c
index 9a619ae..3b228a2 100644
--- a/arch/mips/alchemy/devboards/db1x00/board_setup.c
+++ b/arch/mips/alchemy/devboards/db1x00/board_setup.c
@@ -187,8 +187,12 @@ static int __init db1x00_init_irq(void)
 #if defined(CONFIG_MIPS_MIRAGE)
 	set_irq_type(AU1000_GPIO_7, IRQF_TRIGGER_RISING); /* TS pendown */
 #elif defined(CONFIG_MIPS_DB1550)
+	set_irq_type(AU1000_GPIO_0, IRQF_TRIGGER_LOW);	/* CD0# */
+	set_irq_type(AU1000_GPIO_1, IRQF_TRIGGER_LOW);	/* CD1# */
 	set_irq_type(AU1000_GPIO_3, IRQF_TRIGGER_LOW);	/* CARD0# */
 	set_irq_type(AU1000_GPIO_5, IRQF_TRIGGER_LOW);	/* CARD1# */
+	set_irq_type(AU1000_GPIO_21, IRQF_TRIGGER_LOW);	/* STSCHG0# */
+	set_irq_type(AU1000_GPIO_22, IRQF_TRIGGER_LOW);	/* STSCHG1# */
 #else
 	set_irq_type(AU1000_GPIO_0, IRQF_TRIGGER_LOW);	/* CD0# */
 	set_irq_type(AU1000_GPIO_3, IRQF_TRIGGER_LOW);	/* CD1# */
diff --git a/arch/mips/alchemy/devboards/db1x00/platform.c b/arch/mips/alchemy/devboards/db1x00/platform.c
new file mode 100644
index 0000000..b762b79
--- /dev/null
+++ b/arch/mips/alchemy/devboards/db1x00/platform.c
@@ -0,0 +1,84 @@
+/*
+ * DBAu1xxx 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/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-au1x00/au1xxx.h>
+#include "../platform.h"
+
+#if defined(CONFIG_MIPS_DB1000) || defined(CONFIG_MIPS_DB1100) || \
+    defined(CONFIG_MIPS_DB1500) || defined(CONFIG_MIPS_DB1550)
+#define DB1XXX_HAS_PCMCIA
+#endif
+
+/* DB1xxx PCMCIA interrupt sources:
+ * CD0/1 	GPIO0/3
+ * STSCHG0/1	GPIO1/4
+ * CARD0/1	GPIO2/5
+ * Db1550:	0/1, 21/22, 3/5
+ */
+#ifndef CONFIG_MIPS_DB1550
+/* Db1000, Db1100, Db1500 */
+#define DB1XXX_PCMCIA_CD0	AU1000_GPIO_0
+#define DB1XXX_PCMCIA_STSCHG0	AU1000_GPIO_1
+#define DB1XXX_PCMCIA_CARD0	AU1000_GPIO_2
+#define DB1XXX_PCMCIA_CD1	AU1000_GPIO_3
+#define DB1XXX_PCMCIA_STSCHG1	AU1000_GPIO_4
+#define DB1XXX_PCMCIA_CARD1	AU1000_GPIO_5
+#else
+#define DB1XXX_PCMCIA_CD0	AU1000_GPIO_0
+#define DB1XXX_PCMCIA_STSCHG0	AU1500_GPIO_21
+#define DB1XXX_PCMCIA_CARD0	AU1000_GPIO_3
+#define DB1XXX_PCMCIA_CD1	AU1000_GPIO_1
+#define DB1XXX_PCMCIA_STSCHG1	AU1500_GPIO_22
+#define DB1XXX_PCMCIA_CARD1	AU1000_GPIO_5
+#endif
+
+static int __init db1xxx_dev_init(void)
+{
+#ifdef DB1XXX_HAS_PCMCIA
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00040000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00001000 - 1,
+				    DB1XXX_PCMCIA_CARD0,
+				    DB1XXX_PCMCIA_CD0,
+				    /*DB1XXX_PCMCIA_STSCHG0*/0,
+				    0,
+				    0);
+
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS + 0x00400000,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00440000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00400000,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00440000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00400000,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00401000 - 1,
+				    DB1XXX_PCMCIA_CARD1,
+				    DB1XXX_PCMCIA_CD1,
+				    /*DB1XXX_PCMCIA_STSCHG1*/0,
+				    0,
+				    1);
+#endif
+	return 0;
+}
+device_initcall(db1xxx_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1100/Makefile b/arch/mips/alchemy/devboards/pb1100/Makefile
index c586dd7..7e3756c 100644
--- a/arch/mips/alchemy/devboards/pb1100/Makefile
+++ b/arch/mips/alchemy/devboards/pb1100/Makefile
@@ -5,4 +5,4 @@
 # Makefile for the Alchemy Semiconductor Pb1100 board.
 #
 
-obj-y := board_setup.o
+obj-y := board_setup.o platform.o
diff --git a/arch/mips/alchemy/devboards/pb1100/board_setup.c b/arch/mips/alchemy/devboards/pb1100/board_setup.c
index aad424a..b282d93 100644
--- a/arch/mips/alchemy/devboards/pb1100/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1100/board_setup.c
@@ -29,7 +29,6 @@
 #include <linux/interrupt.h>
 
 #include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-pb1x00/pb1100.h>
 #include <asm/mach-db1x00/bcsr.h>
 
 #include <prom.h>
diff --git a/arch/mips/alchemy/devboards/pb1100/platform.c b/arch/mips/alchemy/devboards/pb1100/platform.c
new file mode 100644
index 0000000..8487da5
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1100/platform.c
@@ -0,0 +1,43 @@
+/*
+ * 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/init.h>
+
+#include <asm/mach-au1x00/au1000.h>
+
+#include "../platform.h"
+
+static int __init pb1100_dev_init(void)
+{
+	/* PCMCIA. single socket, identical to Pb1500 */
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00040000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00001000 - 1,
+				    AU1000_GPIO_11,	 /* card */
+				    AU1000_GPIO_9,	 /* insert */
+				    /*AU1000_GPIO_10*/0, /* stschg */
+				    0,			 /* eject */
+				    0);			 /* id */
+	return 0;
+}
+device_initcall(pb1100_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1200/platform.c b/arch/mips/alchemy/devboards/pb1200/platform.c
index dfdaabf..c8b7ae3f 100644
--- a/arch/mips/alchemy/devboards/pb1200/platform.c
+++ b/arch/mips/alchemy/devboards/pb1200/platform.c
@@ -28,6 +28,8 @@
 #include <asm/mach-au1x00/au1100_mmc.h>
 #include <asm/mach-db1x00/bcsr.h>
 
+#include "../platform.h"
+
 static int mmc_activity;
 
 static void pb1200mmc0_set_power(void *mmc_host, int state)
@@ -170,8 +172,57 @@ static struct platform_device *board_platform_devices[] __initdata = {
 
 static int __init board_register_devices(void)
 {
+#ifdef CONFIG_MIPS_PB1200
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00040000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00001000 - 1,
+				    PB1200_PC0_INT,
+				    PB1200_PC0_INSERT_INT,
+				    /*PB1200_PC0_STSCHG_INT*/0,
+				    PB1200_PC0_EJECT_INT,
+				    0);
+
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS + 0x00800000,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00840000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00800000,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00840000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00800000,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00801000 - 1,
+				    PB1200_PC1_INT,
+				    PB1200_PC1_INSERT_INT,
+				    /*PB1200_PC1_STSCHG_INT*/0,
+				    PB1200_PC1_EJECT_INT,
+				    1);
+#else
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00040000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00001000 - 1,
+				    DB1200_PC0_INT,
+				    DB1200_PC0_INSERT_INT,
+				    /*DB1200_PC0_STSCHG_INT*/0,
+				    DB1200_PC0_EJECT_INT,
+				    0);
+
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS + 0x00400000,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00440000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00400000,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00440000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00400000,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00401000 - 1,
+				    DB1200_PC1_INT,
+				    DB1200_PC1_INSERT_INT,
+				    /*DB1200_PC1_STSCHG_INT*/0,
+				    DB1200_PC1_EJECT_INT,
+				    1);
+#endif
+
 	return platform_add_devices(board_platform_devices,
 				    ARRAY_SIZE(board_platform_devices));
 }
-
-arch_initcall(board_register_devices);
+device_initcall(board_register_devices);
diff --git a/arch/mips/alchemy/devboards/pb1500/Makefile b/arch/mips/alchemy/devboards/pb1500/Makefile
index 173b419..e83b151 100644
--- a/arch/mips/alchemy/devboards/pb1500/Makefile
+++ b/arch/mips/alchemy/devboards/pb1500/Makefile
@@ -5,4 +5,4 @@
 # Makefile for the Alchemy Semiconductor Pb1500 board.
 #
 
-obj-y := board_setup.o
+obj-y := board_setup.o platform.o
diff --git a/arch/mips/alchemy/devboards/pb1500/board_setup.c b/arch/mips/alchemy/devboards/pb1500/board_setup.c
index bf8e149..a148802 100644
--- a/arch/mips/alchemy/devboards/pb1500/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1500/board_setup.c
@@ -29,7 +29,6 @@
 #include <linux/interrupt.h>
 
 #include <asm/mach-au1x00/au1000.h>
-#include <asm/mach-pb1x00/pb1500.h>
 #include <asm/mach-db1x00/bcsr.h>
 
 #include <prom.h>
@@ -156,6 +155,9 @@ void __init board_setup(void)
 
 static int __init pb1500_init_irq(void)
 {
+	set_irq_type(AU1000_GPIO_9, IRQF_TRIGGER_LOW);	/* CD0# */
+	set_irq_type(AU1000_GPIO_10, IRQF_TRIGGER_LOW);	/* CARD0 */
+	set_irq_type(AU1000_GPIO_11, IRQF_TRIGGER_LOW);	/* STSCHG0# */
 	set_irq_type(AU1500_GPIO_204, IRQF_TRIGGER_HIGH);
 	set_irq_type(AU1500_GPIO_201, IRQF_TRIGGER_LOW);
 	set_irq_type(AU1500_GPIO_202, IRQF_TRIGGER_LOW);
diff --git a/arch/mips/alchemy/devboards/pb1500/platform.c b/arch/mips/alchemy/devboards/pb1500/platform.c
new file mode 100644
index 0000000..6c00cbe
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1500/platform.c
@@ -0,0 +1,42 @@
+/*
+ * Pb1500 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/init.h>
+#include <asm/mach-au1x00/au1000.h>
+
+#include "../platform.h"
+
+static int __init pb1500_dev_init(void)
+{
+	/* PCMCIA. single socket, identical to Pb1500 */
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00040000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00001000 - 1,
+				    AU1000_GPIO_11,	 /* card */
+				    AU1000_GPIO_9,	 /* insert */
+				    /*AU1000_GPIO_10*/0, /* stschg */
+				    0,			 /* eject */
+				    0);			 /* id */
+	return 0;
+}
+device_initcall(pb1500_dev_init);
diff --git a/arch/mips/alchemy/devboards/pb1550/Makefile b/arch/mips/alchemy/devboards/pb1550/Makefile
index cff95bc..9661b6e 100644
--- a/arch/mips/alchemy/devboards/pb1550/Makefile
+++ b/arch/mips/alchemy/devboards/pb1550/Makefile
@@ -5,4 +5,4 @@
 # Makefile for the Alchemy Semiconductor Pb1550 board.
 #
 
-obj-y := board_setup.o
+obj-y := board_setup.o platform.o
diff --git a/arch/mips/alchemy/devboards/pb1550/board_setup.c b/arch/mips/alchemy/devboards/pb1550/board_setup.c
index 64f1ff9..64a6fc4 100644
--- a/arch/mips/alchemy/devboards/pb1550/board_setup.c
+++ b/arch/mips/alchemy/devboards/pb1550/board_setup.c
@@ -33,6 +33,7 @@
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-pb1x00/pb1550.h>
 #include <asm/mach-db1x00/bcsr.h>
+#include <asm/mach-au1x00/gpio.h>
 
 #include <prom.h>
 
@@ -70,6 +71,8 @@ void __init board_setup(void)
 	}
 #endif
 
+	alchemy_gpio2_enable();
+
 	/*
 	 * Enable PSC1 SYNC for AC'97.  Normaly done in audio driver,
 	 * but it is board specific code, so put it here.
@@ -88,6 +91,11 @@ static int __init pb1550_init_irq(void)
 {
 	set_irq_type(AU1000_GPIO_0, IRQF_TRIGGER_LOW);
 	set_irq_type(AU1000_GPIO_1, IRQF_TRIGGER_LOW);
+	set_irq_type(AU1500_GPIO_201_205, IRQF_TRIGGER_HIGH);
+
+	/* enable both PCMCIA card irqs in the shared line */
+	alchemy_gpio2_enable_int(201);
+	alchemy_gpio2_enable_int(202);
 
 	return 0;
 }
diff --git a/arch/mips/alchemy/devboards/pb1550/platform.c b/arch/mips/alchemy/devboards/pb1550/platform.c
new file mode 100644
index 0000000..aa5016c
--- /dev/null
+++ b/arch/mips/alchemy/devboards/pb1550/platform.c
@@ -0,0 +1,63 @@
+/*
+ * Pb1550 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/init.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-pb1x00/pb1550.h>
+
+#include "../platform.h"
+
+static int __init pb1550_dev_init(void)
+{
+	/* 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(PCMCIA_ATTR_PSEUDO_PHYS,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00040000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00040000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00001000 - 1,
+				    AU1500_GPIO_201_205,
+				    AU1000_GPIO_0,
+				    0,
+				    0,
+				    0);
+
+	db1x_register_pcmcia_socket(PCMCIA_ATTR_PSEUDO_PHYS + 0x00800000,
+				    PCMCIA_ATTR_PSEUDO_PHYS + 0x00840000 - 1,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00800000,
+				    PCMCIA_MEM_PSEUDO_PHYS  + 0x00840000 - 1,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00800000,
+				    PCMCIA_IO_PSEUDO_PHYS   + 0x00801000 - 1,
+				    AU1500_GPIO_201_205,
+				    AU1000_GPIO_1,
+				    0,
+				    0,
+				    1);
+
+	return 0;
+}
+device_initcall(pb1550_dev_init);
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
new file mode 100644
index 0000000..48c537c
--- /dev/null
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -0,0 +1,89 @@
+/*
+ * devoard misc stuff.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+
+/* register a pcmcia socket */
+int __init db1x_register_pcmcia_socket(unsigned long pseudo_attr_start,
+				       unsigned long pseudo_attr_end,
+				       unsigned long pseudo_mem_start,
+				       unsigned long pseudo_mem_end,
+				       unsigned long pseudo_io_start,
+				       unsigned long pseudo_io_end,
+				       int card_irq,
+				       int cd_irq,
+				       int stschg_irq,
+				       int eject_irq,
+				       int id)
+{
+	int cnt, i, ret;
+	struct resource *sr;
+	struct platform_device *pd;
+
+	cnt = 5;
+	if (eject_irq)
+		cnt++;
+	if (stschg_irq)
+		cnt++;
+
+	sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL);
+	if (!sr)
+		return -ENOMEM;
+
+	pd = platform_device_alloc("db1xxx_pcmcia", id);
+	if (!pd) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	sr[0].name	= "pseudo-attr";
+	sr[0].flags	= IORESOURCE_MEM;
+	sr[0].start	= pseudo_attr_start;
+	sr[0].end	= pseudo_attr_end;
+
+	sr[1].name	= "pseudo-mem";
+	sr[1].flags	= IORESOURCE_MEM;
+	sr[1].start	= pseudo_mem_start;
+	sr[1].end	= pseudo_mem_end;
+
+	sr[2].name	= "pseudo-io";
+	sr[2].flags	= IORESOURCE_MEM;
+	sr[2].start	= pseudo_io_start;
+	sr[2].end	= pseudo_io_end;
+
+	sr[3].name	= "insert";
+	sr[3].flags	= IORESOURCE_IRQ;
+	sr[3].start = sr[3].end = cd_irq;
+
+	sr[4].name	= "card";
+	sr[4].flags	= IORESOURCE_IRQ;
+	sr[4].start = sr[4].end = card_irq;
+
+	i = 5;
+	if (stschg_irq) {
+		sr[i].name	= "insert";
+		sr[i].flags	= IORESOURCE_IRQ;
+		sr[i].start = sr[i].end = cd_irq;
+		i++;
+	}
+	if (eject_irq) {
+		sr[i].name	= "eject";
+		sr[i].flags	= IORESOURCE_IRQ;
+		sr[i].start = sr[i].end = eject_irq;
+	}
+
+	pd->resource = sr;
+	pd->num_resources = cnt;
+
+	ret = platform_device_add(pd);
+	if (!ret)
+		return 0;
+
+	platform_device_put(pd);
+out:
+	kfree(sr);
+	return ret;
+}
diff --git a/arch/mips/alchemy/devboards/platform.h b/arch/mips/alchemy/devboards/platform.h
new file mode 100644
index 0000000..55ecf7e
--- /dev/null
+++ b/arch/mips/alchemy/devboards/platform.h
@@ -0,0 +1,18 @@
+#ifndef _DEVBOARD_PLATFORM_H_
+#define _DEVBOARD_PLATFORM_H_
+
+#include <linux/init.h>
+
+int __init db1x_register_pcmcia_socket(unsigned long pseudo_attr_start,
+				       unsigned long pseudo_attr_len,
+				       unsigned long pseudo_mem_start,
+				       unsigned long pseudo_mem_end,
+				       unsigned long pseudo_io_start,
+				       unsigned long pseudo_io_end,
+				       int card_irq,
+				       int cd_irq,
+				       int stschg_irq,
+				       int eject_irq,
+				       int id);
+
+#endif