Merge branch '83xx' into for_paulus

Documentation/powerpc/booting-without-of.txt

@@ -1334,6 +1334,9 @@ platforms are moved over to use the flattened-device-tree model.
       fsl-usb2-mph compatible controllers.  Either this property or
       "port0" (or both) must be defined for "fsl-usb2-mph" compatible 
       controllers.
+    - dr_mode : indicates the working mode for "fsl-usb2-dr" compatible
+      controllers.  Can be "host", "peripheral", or "otg".  Default to
+      "host" if not defined for backward compatibility.
 
    Recommended properties :
     - interrupts : <a b> where a is the interrupt number and b is a
@@ -1367,6 +1370,7 @@ platforms are moved over to use the flattened-device-tree model.
 		#size-cells = <0>;
 		interrupt-parent = <700>;
 		interrupts = <26 1>;
+		dr_mode = "otg";
 		phy = "ulpi";
 	};
 

arch/powerpc/boot/dts/mpc8313erdb.dts

@@ -0,0 +1,219 @@
+/*
+ * MPC8313E RDB Device Tree Source
+ *
+ * Copyright 2005, 2006, 2007 Freescale Semiconductor Inc.
+ *
+ * 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.
+ */
+
+/ {
+	model = "MPC8313ERDB";
+	compatible = "MPC83xx";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#cpus = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		PowerPC,8313@0 {
+			device_type = "cpu";
+			reg = <0>;
+			d-cache-line-size = <20>;	// 32 bytes
+			i-cache-line-size = <20>;	// 32 bytes
+			d-cache-size = <4000>;		// L1, 16K
+			i-cache-size = <4000>;		// L1, 16K
+			timebase-frequency = <0>;	// from bootloader
+			bus-frequency = <0>;		// from bootloader
+			clock-frequency = <0>;		// from bootloader
+			32-bit;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <00000000 08000000>;	// 128MB at 0
+	};
+
+	soc8313@e0000000 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		#interrupt-cells = <2>;
+		device_type = "soc";
+		ranges = <0 e0000000 00100000>;
+		reg = <e0000000 00000200>;
+		bus-frequency = <0>;
+
+		wdt@200 {
+			device_type = "watchdog";
+			compatible = "mpc83xx_wdt";
+			reg = <200 100>;
+		};
+
+		i2c@3000 {
+			device_type = "i2c";
+			compatible = "fsl-i2c";
+			reg = <3000 100>;
+			interrupts = <e 8>;
+			interrupt-parent = <700>;
+			dfsrr;
+		};
+
+		i2c@3100 {
+			device_type = "i2c";
+			compatible = "fsl-i2c";
+			reg = <3100 100>;
+			interrupts = <f 8>;
+			interrupt-parent = <700>;
+			dfsrr;
+		};
+
+		spi@7000 {
+			device_type = "spi";
+			compatible = "mpc83xx_spi";
+			reg = <7000 1000>;
+			interrupts = <10 8>;
+			interrupt-parent = <700>;
+			mode = <0>;
+		};
+
+		/* phy type (ULPI, UTMI, UTMI_WIDE, SERIAL) */
+		usb@23000 {
+			device_type = "usb";
+			compatible = "fsl-usb2-dr";
+			reg = <23000 1000>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupt-parent = <700>;
+			interrupts = <26 2>;
+			phy_type = "utmi_wide";
+		};
+
+		mdio@24520 {
+			device_type = "mdio";
+			compatible = "gianfar";
+			reg = <24520 20>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			linux,phandle = <24520>;
+			ethernet-phy@1 {
+				linux,phandle = <2452001>;
+				interrupt-parent = <700>;
+				interrupts = <13 2>;
+				reg = <1>;
+				device_type = "ethernet-phy";
+			};
+			ethernet-phy@4 {
+				linux,phandle = <2452004>;
+				interrupt-parent = <700>;
+				interrupts = <14 2>;
+				reg = <4>;
+				device_type = "ethernet-phy";
+			};
+		};
+
+		ethernet@24000 {
+			device_type = "network";
+			model = "eTSEC";
+			compatible = "gianfar";
+			reg = <24000 1000>;
+			local-mac-address = [ 00 00 00 00 00 00 ];
+			interrupts = <25 8 24 8 23 8>;
+			interrupt-parent = <700>;
+			phy-handle = <2452001>;
+		};
+
+		ethernet@25000 {
+			device_type = "network";
+			model = "eTSEC";
+			compatible = "gianfar";
+			reg = <25000 1000>;
+			local-mac-address = [ 00 00 00 00 00 00 ];
+			interrupts = <22 8 21 8 20 8>;
+			interrupt-parent = <700>;
+			phy-handle = <2452004>;
+		};
+
+		serial@4500 {
+			device_type = "serial";
+			compatible = "ns16550";
+			reg = <4500 100>;
+			clock-frequency = <0>;
+			interrupts = <9 8>;
+			interrupt-parent = <700>;
+		};
+
+		serial@4600 {
+			device_type = "serial";
+			compatible = "ns16550";
+			reg = <4600 100>;
+			clock-frequency = <0>;
+			interrupts = <a 8>;
+			interrupt-parent = <700>;
+		};
+
+		pci@8500 {
+			interrupt-map-mask = <f800 0 0 7>;
+			interrupt-map = <
+
+					/* IDSEL 0x0E -mini PCI */
+					 7000 0 0 1 700 12 8
+					 7000 0 0 2 700 12 8
+					 7000 0 0 3 700 12 8
+					 7000 0 0 4 700 12 8
+
+					/* IDSEL 0x0F - PCI slot */
+					 7800 0 0 1 700 11 8
+					 7800 0 0 2 700 12 8
+					 7800 0 0 3 700 11 8
+					 7800 0 0 4 700 12 8>;
+			interrupt-parent = <700>;
+			interrupts = <42 8>;
+			bus-range = <0 0>;
+			ranges = <02000000 0 90000000 90000000 0 10000000
+			          42000000 0 80000000 80000000 0 10000000
+			          01000000 0 00000000 e2000000 0 00100000>;
+			clock-frequency = <3f940aa>;
+			#interrupt-cells = <1>;
+			#size-cells = <2>;
+			#address-cells = <3>;
+			reg = <8500 100>;
+			compatible = "83xx";
+			device_type = "pci";
+		};
+
+		crypto@30000 {
+			device_type = "crypto";
+			model = "SEC2";
+			compatible = "talitos";
+			reg = <30000 7000>;
+			interrupts = <b 8>;
+			interrupt-parent = <700>;
+			/* Rev. 2.2 */
+			num-channels = <1>;
+			channel-fifo-len = <18>;
+			exec-units-mask = <0000004c>;
+			descriptor-types-mask = <0122003f>;
+		};
+
+		/* IPIC
+		 * interrupts cell = <intr #, sense>
+		 * sense values match linux IORESOURCE_IRQ_* defines:
+		 * sense == 8: Level, low assertion
+		 * sense == 2: Edge, high-to-low change
+		 */
+		pic@700 {
+			linux,phandle = <700>;
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <2>;
+			reg = <700 100>;
+			built-in;
+			device_type = "ipic";
+		};
+	};
+};

arch/powerpc/boot/dts/mpc834x_mds.dts

@@ -39,6 +39,11 @@
 		reg = <00000000 10000000>;	// 256MB at 0
 	};
 
+	bcsr@e2400000 {
+		device_type = "board-control";
+		reg = <e2400000 8000>;
+	};
+
 	soc8349@e0000000 {
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -103,6 +108,7 @@
 			#size-cells = <0>;
 			interrupt-parent = <700>;
 			interrupts = <26 2>;
+			dr_mode = "otg";
 			phy_type = "ulpi";
 		};
 

arch/powerpc/configs/mpc834x_mds_defconfig

@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.20-rc5
+# Linux kernel version: 2.6.20
-# Fri Jan 26 00:19:27 2007
+# Thu Feb  8 01:00:48 2007
 #
 # CONFIG_PPC64 is not set
 CONFIG_PPC32=y
@@ -34,9 +34,9 @@ CONFIG_DEFAULT_UIMAGE=y
 CONFIG_PPC_83xx=y
 # CONFIG_PPC_85xx is not set
 # CONFIG_PPC_86xx is not set
+# CONFIG_PPC_8xx is not set
 # CONFIG_40x is not set
 # CONFIG_44x is not set
-# CONFIG_8xx is not set
 # CONFIG_E200 is not set
 CONFIG_6xx=y
 CONFIG_83xx=y
@@ -128,8 +128,9 @@ CONFIG_PPC_GEN550=y
 #
 # Platform support
 #
+# CONFIG_MPC8313_RDB is not set
 # CONFIG_MPC832x_MDS is not set
-CONFIG_MPC834x_SYS=y
+CONFIG_MPC834x_MDS=y
 # CONFIG_MPC834x_ITX is not set
 # CONFIG_MPC8360E_PB is not set
 CONFIG_MPC834x=y

arch/powerpc/platforms/83xx/Kconfig

@@ -3,7 +3,13 @@ menu "Platform support"
 
 choice
 	prompt "Machine Type"
-	default MPC834x_SYS
+	default MPC834x_MDS
+
+config MPC8313_RDB
+	bool "Freescale MPC8313 RDB"
+	select DEFAULT_UIMAGE
+	help
+	  This option enables support for the MPC8313 RDB board.
 
 config MPC832x_MDS
 	bool "Freescale MPC832x MDS"
@@ -12,13 +18,13 @@ config MPC832x_MDS
 	help
 	  This option enables support for the MPC832x MDS evaluation board.
 
-config MPC834x_SYS
+config MPC834x_MDS
-	bool "Freescale MPC834x SYS"
+	bool "Freescale MPC834x MDS"
 	select DEFAULT_UIMAGE
 	help
-	  This option enables support for the MPC 834x SYS evaluation board.
+	  This option enables support for the MPC 834x MDS evaluation board.
 
-	  Be aware that PCI buses can only function when SYS board is plugged
+	  Be aware that PCI buses can only function when MDS board is plugged
 	  into the PIB (Platform IO Board) board from Freescale which provide
 	  3 PCI slots.  The PIBs PCI initialization is the bootloader's
 	  responsibility.
@@ -41,6 +47,12 @@ config MPC8360E_PB
 
 endchoice
 
+config PPC_MPC831x
+	bool
+	select PPC_UDBG_16550
+	select PPC_INDIRECT_PCI
+	default y if MPC8313_RDB
+
 config PPC_MPC832x
 	bool
 	select PPC_UDBG_16550
@@ -51,7 +63,7 @@ config MPC834x
 	bool
 	select PPC_UDBG_16550
 	select PPC_INDIRECT_PCI
-	default y if MPC834x_SYS || MPC834x_ITX
+	default y if MPC834x_MDS || MPC834x_ITX
 
 config PPC_MPC836x
 	bool

arch/powerpc/platforms/83xx/Makefile

@@ -3,7 +3,8 @@
 #
 obj-y				:= misc.o
 obj-$(CONFIG_PCI)		+= pci.o
-obj-$(CONFIG_MPC834x_SYS)	+= mpc834x_sys.o
+obj-$(CONFIG_MPC8313_RDB)	+= mpc8313_rdb.o
+obj-$(CONFIG_MPC834x_MDS)	+= mpc834x_mds.o
 obj-$(CONFIG_MPC834x_ITX)	+= mpc834x_itx.o
 obj-$(CONFIG_MPC8360E_PB)	+= mpc8360e_pb.o
 obj-$(CONFIG_MPC832x_MDS)	+= mpc832x_mds.o

arch/powerpc/platforms/83xx/mpc8313_rdb.c

@@ -0,0 +1,99 @@
+/*
+ * arch/powerpc/platforms/83xx/mpc8313_rdb.c
+ *
+ * Description: MPC8313x RDB board specific routines.
+ * This file is based on mpc834x_sys.c
+ * Author: Lo Wlison <r43300@freescale.com>
+ *
+ * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
+ *
+ * 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.
+ */
+
+#include <linux/pci.h>
+
+#include <asm/time.h>
+#include <asm/ipic.h>
+#include <asm/udbg.h>
+
+#include "mpc83xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc8313_rdb_setup_arch(void)
+{
+	struct device_node *np;
+
+	if (ppc_md.progress)
+		ppc_md.progress("mpc8313_rdb_setup_arch()", 0);
+
+#ifdef CONFIG_PCI
+	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+		add_bridge(np);
+
+	ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+#endif
+}
+
+void __init mpc8313_rdb_init_IRQ(void)
+{
+	struct device_node *np;
+
+	np = of_find_node_by_type(NULL, "ipic");
+	if (!np)
+		return;
+
+	ipic_init(np, 0);
+
+	/* Initialize the default interrupt mapping priorities,
+	 * in case the boot rom changed something on us.
+	 */
+	ipic_set_default_priority();
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc8313_rdb_probe(void)
+{
+	char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
+					  "model", NULL);
+	if (model == NULL)
+		return 0;
+	if (strcmp(model, "MPC8313ERDB"))
+		return 0;
+
+	DBG("MPC8313 RDB found\n");
+
+	return 1;
+}
+
+define_machine(mpc8313_rdb) {
+	.name			= "MPC8313 RDB",
+	.probe			= mpc8313_rdb_probe,
+	.setup_arch		= mpc8313_rdb_setup_arch,
+	.init_IRQ		= mpc8313_rdb_init_IRQ,
+	.get_irq		= ipic_get_irq,
+	.restart		= mpc83xx_restart,
+	.time_init		= mpc83xx_time_init,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};

arch/powerpc/platforms/83xx/mpc834x_itx.c

@@ -38,8 +38,6 @@
 
 #include "mpc83xx.h"
 
-#include <platforms/83xx/mpc834x_sys.h>
-
 #ifndef CONFIG_PCI
 unsigned long isa_io_base = 0;
 unsigned long isa_mem_base = 0;

arch/powerpc/platforms/83xx/mpc834x_mds.c

@@ -1,7 +1,7 @@
 /*
- * arch/powerpc/platforms/83xx/mpc834x_sys.c
+ * arch/powerpc/platforms/83xx/mpc834x_mds.c
  *
- * MPC834x SYS board specific routines
+ * MPC834x MDS board specific routines
  *
  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
  *
@@ -43,17 +43,87 @@ unsigned long isa_io_base = 0;
 unsigned long isa_mem_base = 0;
 #endif
 
+#define BCSR5_INT_USB		0x02
+/* Note: This is only for PB, not for PB+PIB
+ * On PB only port0 is connected using ULPI */
+static int mpc834x_usb_cfg(void)
+{
+	unsigned long sccr, sicrl;
+	void __iomem *immap;
+	void __iomem *bcsr_regs = NULL;
+	u8 bcsr5;
+	struct device_node *np = NULL;
+	int port0_is_dr = 0;
+
+	if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-dr")) != NULL)
+		port0_is_dr = 1;
+	if ((np = of_find_compatible_node(np, "usb", "fsl-usb2-mph")) != NULL){
+		if (port0_is_dr) {
+			printk(KERN_WARNING
+				"There is only one USB port on PB board! \n");
+			return -1;
+		} else if (!port0_is_dr)
+			/* No usb port enabled */
+			return -1;
+	}
+
+	immap = ioremap(get_immrbase(), 0x1000);
+	if (!immap)
+		return -1;
+
+	/* Configure clock */
+	sccr = in_be32(immap + MPC83XX_SCCR_OFFS);
+	if (port0_is_dr)
+		sccr |= MPC83XX_SCCR_USB_DRCM_11;  /* 1:3 */
+	else
+		sccr |= MPC83XX_SCCR_USB_MPHCM_11; /* 1:3 */
+	out_be32(immap + MPC83XX_SCCR_OFFS, sccr);
+
+	/* Configure Pin */
+	sicrl = in_be32(immap + MPC83XX_SICRL_OFFS);
+	/* set port0 only */
+	if (port0_is_dr)
+		sicrl |= MPC83XX_SICRL_USB0;
+	else
+		sicrl &= ~(MPC83XX_SICRL_USB0);
+	out_be32(immap + MPC83XX_SICRL_OFFS, sicrl);
+
+	iounmap(immap);
+
+	/* Map BCSR area */
+	np = of_find_node_by_name(NULL, "bcsr");
+	if (np != 0) {
+		struct resource res;
+
+		of_address_to_resource(np, 0, &res);
+		bcsr_regs = ioremap(res.start, res.end - res.start + 1);
+		of_node_put(np);
+	}
+	if (!bcsr_regs)
+		return -1;
+
+	/*
+	 * if MDS board is plug into PIB board,
+	 * force to use the PHY on MDS board
+	 */
+	bcsr5 = in_8(bcsr_regs + 5);
+	if (!(bcsr5 & BCSR5_INT_USB))
+		out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB));
+	iounmap(bcsr_regs);
+	return 0;
+}
+
 /* ************************************************************************
  *
  * Setup the architecture
  *
  */
-static void __init mpc834x_sys_setup_arch(void)
+static void __init mpc834x_mds_setup_arch(void)
 {
 	struct device_node *np;
 
 	if (ppc_md.progress)
-		ppc_md.progress("mpc834x_sys_setup_arch()", 0);
+		ppc_md.progress("mpc834x_mds_setup_arch()", 0);
 
 	np = of_find_node_by_type(NULL, "cpu");
 	if (np != 0) {
@@ -65,6 +135,7 @@ static void __init mpc834x_sys_setup_arch(void)
 			loops_per_jiffy = 50000000 / HZ;
 		of_node_put(np);
 	}
+
 #ifdef CONFIG_PCI
 	for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
 		add_bridge(np);
@@ -72,6 +143,8 @@ static void __init mpc834x_sys_setup_arch(void)
 	ppc_md.pci_exclude_device = mpc83xx_exclude_device;
 #endif
 
+	mpc834x_usb_cfg();
+
 #ifdef  CONFIG_ROOT_NFS
 	ROOT_DEV = Root_NFS;
 #else
@@ -79,7 +152,7 @@ static void __init mpc834x_sys_setup_arch(void)
 #endif
 }
 
-static void __init mpc834x_sys_init_IRQ(void)
+static void __init mpc834x_mds_init_IRQ(void)
 {
 	struct device_node *np;
 
@@ -119,7 +192,7 @@ late_initcall(mpc834x_rtc_hookup);
 /*
  * Called very early, MMU is off, device-tree isn't unflattened
  */
-static int __init mpc834x_sys_probe(void)
+static int __init mpc834x_mds_probe(void)
 {
 	/* We always match for now, eventually we should look at the flat
 	   dev tree to ensure this is the board we are suppose to run on
@@ -127,11 +200,11 @@ static int __init mpc834x_sys_probe(void)
 	return 1;
 }
 
-define_machine(mpc834x_sys) {
+define_machine(mpc834x_mds) {
-	.name			= "MPC834x SYS",
+	.name			= "MPC834x MDS",
-	.probe			= mpc834x_sys_probe,
+	.probe			= mpc834x_mds_probe,
-	.setup_arch		= mpc834x_sys_setup_arch,
+	.setup_arch		= mpc834x_mds_setup_arch,
-	.init_IRQ		= mpc834x_sys_init_IRQ,
+	.init_IRQ		= mpc834x_mds_init_IRQ,
 	.get_irq		= ipic_get_irq,
 	.restart		= mpc83xx_restart,
 	.time_init		= mpc83xx_time_init,

arch/powerpc/platforms/83xx/mpc834x_sys.h

@@ -1,23 +0,0 @@
-/*
- * arch/powerpc/platforms/83xx/mpc834x_sys.h
- *
- * MPC834X SYS common board definitions
- *
- * Maintainer: Kumar Gala <galak@kernel.crashing.org>
- *
- * 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.
- *
- */
-
-#ifndef __MACH_MPC83XX_SYS_H__
-#define __MACH_MPC83XX_SYS_H__
-
-#define PIRQA	MPC83xx_IRQ_EXT4
-#define PIRQB	MPC83xx_IRQ_EXT5
-#define PIRQC	MPC83xx_IRQ_EXT6
-#define PIRQD	MPC83xx_IRQ_EXT7
-
-#endif				/* __MACH_MPC83XX_SYS_H__ */

arch/powerpc/platforms/83xx/mpc83xx.h

@@ -4,6 +4,24 @@
 #include <linux/init.h>
 #include <linux/device.h>
 
+/* System Clock Control Register */
+#define MPC83XX_SCCR_OFFS          0xA08
+#define MPC83XX_SCCR_USB_MPHCM_11  0x00c00000
+#define MPC83XX_SCCR_USB_MPHCM_01  0x00400000
+#define MPC83XX_SCCR_USB_MPHCM_10  0x00800000
+#define MPC83XX_SCCR_USB_DRCM_11   0x00300000
+#define MPC83XX_SCCR_USB_DRCM_01   0x00100000
+#define MPC83XX_SCCR_USB_DRCM_10   0x00200000
+
+/* system i/o configuration register low */
+#define MPC83XX_SICRL_OFFS         0x114
+#define MPC83XX_SICRL_USB0         0x40000000
+#define MPC83XX_SICRL_USB1         0x20000000
+
+/* system i/o configuration register high */
+#define MPC83XX_SICRH_OFFS         0x118
+#define MPC83XX_SICRH_USB_UTMI     0x00020000
+
 /*
  * Declaration for the various functions exported by the
  * mpc83xx_* files. Mostly for use by mpc83xx_setup

arch/powerpc/sysdev/fsl_soc.c

@@ -441,7 +441,8 @@ static int __init fsl_usb_of_init(void)
 {
 	struct device_node *np;
 	unsigned int i;
-	struct platform_device *usb_dev_mph = NULL, *usb_dev_dr = NULL;
+	struct platform_device *usb_dev_mph = NULL, *usb_dev_dr_host = NULL,
+		*usb_dev_dr_client = NULL;
 	int ret;
 
 	for (np = NULL, i = 0;
@@ -507,33 +508,72 @@ static int __init fsl_usb_of_init(void)
 
 		of_irq_to_resource(np, 0, &r[1]);
 
-		usb_dev_dr =
+		prop = get_property(np, "dr_mode", NULL);
-		    platform_device_register_simple("fsl-ehci", i, r, 2);
+
-		if (IS_ERR(usb_dev_dr)) {
+		if (!prop || !strcmp(prop, "host")) {
-			ret = PTR_ERR(usb_dev_dr);
+			usb_data.operating_mode = FSL_USB2_DR_HOST;
+			usb_dev_dr_host = platform_device_register_simple(
+					"fsl-ehci", i, r, 2);
+			if (IS_ERR(usb_dev_dr_host)) {
+				ret = PTR_ERR(usb_dev_dr_host);
+				goto err;
+			}
+		} else if (prop && !strcmp(prop, "peripheral")) {
+			usb_data.operating_mode = FSL_USB2_DR_DEVICE;
+			usb_dev_dr_client = platform_device_register_simple(
+					"fsl-usb2-udc", i, r, 2);
+			if (IS_ERR(usb_dev_dr_client)) {
+				ret = PTR_ERR(usb_dev_dr_client);
+				goto err;
+			}
+		} else if (prop && !strcmp(prop, "otg")) {
+			usb_data.operating_mode = FSL_USB2_DR_OTG;
+			usb_dev_dr_host = platform_device_register_simple(
+					"fsl-ehci", i, r, 2);
+			if (IS_ERR(usb_dev_dr_host)) {
+				ret = PTR_ERR(usb_dev_dr_host);
+				goto err;
+			}
+			usb_dev_dr_client = platform_device_register_simple(
+					"fsl-usb2-udc", i, r, 2);
+			if (IS_ERR(usb_dev_dr_client)) {
+				ret = PTR_ERR(usb_dev_dr_client);
+				goto err;
+			}
+		} else {
+			ret = -EINVAL;
 			goto err;
 		}
 
-		usb_dev_dr->dev.coherent_dma_mask = 0xffffffffUL;
-		usb_dev_dr->dev.dma_mask = &usb_dev_dr->dev.coherent_dma_mask;
-
-		usb_data.operating_mode = FSL_USB2_DR_HOST;
-
 		prop = get_property(np, "phy_type", NULL);
 		usb_data.phy_mode = determine_usb_phy(prop);
 
-		ret =
+		if (usb_dev_dr_host) {
-		    platform_device_add_data(usb_dev_dr, &usb_data,
+			usb_dev_dr_host->dev.coherent_dma_mask = 0xffffffffUL;
-					     sizeof(struct
+			usb_dev_dr_host->dev.dma_mask = &usb_dev_dr_host->
-						    fsl_usb2_platform_data));
+				dev.coherent_dma_mask;
-		if (ret)
+			if ((ret = platform_device_add_data(usb_dev_dr_host,
-			goto unreg_dr;
+						&usb_data, sizeof(struct
+						fsl_usb2_platform_data))))
+				goto unreg_dr;
+		}
+		if (usb_dev_dr_client) {
+			usb_dev_dr_client->dev.coherent_dma_mask = 0xffffffffUL;
+			usb_dev_dr_client->dev.dma_mask = &usb_dev_dr_client->
+				dev.coherent_dma_mask;
+			if ((ret = platform_device_add_data(usb_dev_dr_client,
+						&usb_data, sizeof(struct
+						fsl_usb2_platform_data))))
+				goto unreg_dr;
+		}
 	}
 	return 0;
 
 unreg_dr:
-	if (usb_dev_dr)
+	if (usb_dev_dr_host)
-		platform_device_unregister(usb_dev_dr);
+		platform_device_unregister(usb_dev_dr_host);
+	if (usb_dev_dr_client)
+		platform_device_unregister(usb_dev_dr_client);
 unreg_mph:
 	if (usb_dev_mph)
 		platform_device_unregister(usb_dev_mph);
@@ -699,7 +739,7 @@ static int __init fs_enet_of_init(void)
 				if (ret)
 					goto unreg;
 			}
-			
+
 			of_node_put(phy);
 			of_node_put(mdio);