diff --git a/arch/arm/include/asm/arch-mx28/regs-usb.h b/arch/arm/include/asm/arch-mx28/regs-usb.h
new file mode 100644
index 0000000..ea61de8
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-usb.h
@@ -0,0 +1,178 @@
+/*
+ * Freescale i.MX28 USB OTG Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __REGS_USB_H__
+#define __REGS_USB_H__
+
+struct mx28_usb_regs {
+	uint32_t		hw_usbctrl_id;			/* 0x000 */
+	uint32_t		hw_usbctrl_hwgeneral;		/* 0x004 */
+	uint32_t		hw_usbctrl_hwhost;		/* 0x008 */
+	uint32_t		hw_usbctrl_hwdevice;		/* 0x00c */
+	uint32_t		hw_usbctrl_hwtxbuf;		/* 0x010 */
+	uint32_t		hw_usbctrl_hwrxbuf;		/* 0x014 */
+
+	uint32_t		reserved1[26];
+
+	uint32_t		hw_usbctrl_gptimer0ld;		/* 0x080 */
+	uint32_t		hw_usbctrl_gptimer0ctrl;	/* 0x084 */
+	uint32_t		hw_usbctrl_gptimer1ld;		/* 0x088 */
+	uint32_t		hw_usbctrl_gptimer1ctrl;	/* 0x08c */
+	uint32_t		hw_usbctrl_sbuscfg;		/* 0x090 */
+
+	uint32_t		reserved2[27];
+
+	uint32_t		hw_usbctrl_caplength;		/* 0x100 */
+	uint32_t		hw_usbctrl_hcsparams;		/* 0x104 */
+	uint32_t		hw_usbctrl_hccparams;		/* 0x108 */
+
+	uint32_t		reserved3[5];
+
+	uint32_t		hw_usbctrl_dciversion;		/* 0x120 */
+	uint32_t		hw_usbctrl_dccparams;		/* 0x124 */
+
+	uint32_t		reserved4[6];
+
+	uint32_t		hw_usbctrl_usbcmd;		/* 0x140 */
+	uint32_t		hw_usbctrl_usbsts;		/* 0x144 */
+	uint32_t		hw_usbctrl_usbintr;		/* 0x148 */
+	uint32_t		hw_usbctrl_frindex;		/* 0x14c */
+
+	uint32_t		reserved5;
+
+	union {
+		uint32_t	hw_usbctrl_periodiclistbase;	/* 0x154 */
+		uint32_t	hw_usbctrl_deviceaddr;		/* 0x154 */
+	};
+	union {
+		uint32_t	hw_usbctrl_asynclistaddr;	/* 0x158 */
+		uint32_t	hw_usbctrl_endpointlistaddr;	/* 0x158 */
+	};
+
+	uint32_t		hw_usbctrl_ttctrl;		/* 0x15c */
+	uint32_t		hw_usbctrl_burstsize;		/* 0x160 */
+	uint32_t		hw_usbctrl_txfilltuning;	/* 0x164 */
+
+	uint32_t		reserved6;
+
+	uint32_t		hw_usbctrl_ic_usb;		/* 0x16c */
+	uint32_t		hw_usbctrl_ulpi;		/* 0x170 */
+
+	uint32_t		reserved7;
+
+	uint32_t		hw_usbctrl_endptnak;		/* 0x178 */
+	uint32_t		hw_usbctrl_endptnaken;		/* 0x17c */
+
+	uint32_t		reserved8;
+
+	uint32_t		hw_usbctrl_portsc1;		/* 0x184 */
+
+	uint32_t		reserved9[7];
+
+	uint32_t		hw_usbctrl_otgsc;		/* 0x1a4 */
+	uint32_t		hw_usbctrl_usbmode;		/* 0x1a8 */
+	uint32_t		hw_usbctrl_endptsetupstat;	/* 0x1ac */
+	uint32_t		hw_usbctrl_endptprime;		/* 0x1b0 */
+	uint32_t		hw_usbctrl_endptflush;		/* 0x1b4 */
+	uint32_t		hw_usbctrl_endptstat;		/* 0x1b8 */
+	uint32_t		hw_usbctrl_endptcomplete;	/* 0x1bc */
+	uint32_t		hw_usbctrl_endptctrl0;		/* 0x1c0 */
+	uint32_t		hw_usbctrl_endptctrl1;		/* 0x1c4 */
+	uint32_t		hw_usbctrl_endptctrl2;		/* 0x1c8 */
+	uint32_t		hw_usbctrl_endptctrl3;		/* 0x1cc */
+	uint32_t		hw_usbctrl_endptctrl4;		/* 0x1d0 */
+	uint32_t		hw_usbctrl_endptctrl5;		/* 0x1d4 */
+	uint32_t		hw_usbctrl_endptctrl6;		/* 0x1d8 */
+	uint32_t		hw_usbctrl_endptctrl7;		/* 0x1dc */
+};
+
+#define	CLKCTRL_PLL0CTRL0_LFR_SEL_MASK		(0x3 << 28)
+
+#define	HW_USBCTRL_ID_CIVERSION_OFFSET		29
+#define	HW_USBCTRL_ID_CIVERSION_MASK		(0x7 << 29)
+#define	HW_USBCTRL_ID_VERSION_OFFSET		25
+#define	HW_USBCTRL_ID_VERSION_MASK		(0xf << 25)
+#define	HW_USBCTRL_ID_REVISION_OFFSET		21
+#define	HW_USBCTRL_ID_REVISION_MASK		(0xf << 21)
+#define	HW_USBCTRL_ID_TAG_OFFSET		16
+#define	HW_USBCTRL_ID_TAG_MASK			(0x1f << 16)
+#define	HW_USBCTRL_ID_NID_OFFSET		8
+#define	HW_USBCTRL_ID_NID_MASK			(0x3f << 8)
+#define	HW_USBCTRL_ID_ID_OFFSET			0
+#define	HW_USBCTRL_ID_ID_MASK			(0x3f << 0)
+
+#define	HW_USBCTRL_HWGENERAL_SM_OFFSET		9
+#define	HW_USBCTRL_HWGENERAL_SM_MASK		(0x3 << 9)
+#define	HW_USBCTRL_HWGENERAL_PHYM_OFFSET	6
+#define	HW_USBCTRL_HWGENERAL_PHYM_MASK		(0x7 << 6)
+#define	HW_USBCTRL_HWGENERAL_PHYW_OFFSET	4
+#define	HW_USBCTRL_HWGENERAL_PHYW_MASK		(0x3 << 4)
+#define	HW_USBCTRL_HWGENERAL_BWT		(1 << 3)
+#define	HW_USBCTRL_HWGENERAL_CLKC_OFFSET	1
+#define	HW_USBCTRL_HWGENERAL_CLKC_MASK		(0x3 << 1)
+#define	HW_USBCTRL_HWGENERAL_RT			(1 << 0)
+
+#define	HW_USBCTRL_HWHOST_TTPER_OFFSET		24
+#define	HW_USBCTRL_HWHOST_TTPER_MASK		(0xff << 24)
+#define	HW_USBCTRL_HWHOST_TTASY_OFFSET		16
+#define	HW_USBCTRL_HWHOST_TTASY_MASK		(0xff << 19)
+#define	HW_USBCTRL_HWHOST_NPORT_OFFSET		1
+#define	HW_USBCTRL_HWHOST_NPORT_MASK		(0x7 << 1)
+#define	HW_USBCTRL_HWHOST_HC			(1 << 0)
+
+#define	HW_USBCTRL_HWDEVICE_DEVEP_OFFSET	1
+#define	HW_USBCTRL_HWDEVICE_DEVEP_MASK		(0x1f << 1)
+#define	HW_USBCTRL_HWDEVICE_DC			(1 << 0)
+
+#define	HW_USBCTRL_HWTXBUF_TXLCR		(1 << 31)
+#define	HW_USBCTRL_HWTXBUF_TXCHANADD_OFFSET	16
+#define	HW_USBCTRL_HWTXBUF_TXCHANADD_MASK	(0xff << 16)
+#define	HW_USBCTRL_HWTXBUF_TXADD_OFFSET		8
+#define	HW_USBCTRL_HWTXBUF_TXADD_MASK		(0xff << 8)
+#define	HW_USBCTRL_HWTXBUF_TXBURST_OFFSET	0
+#define	HW_USBCTRL_HWTXBUF_TXBURST_MASK		0xff
+
+#define	HW_USBCTRL_HWRXBUF_RXADD_OFFSET		8
+#define	HW_USBCTRL_HWRXBUF_RXADD_MASK		(0xff << 8)
+#define	HW_USBCTRL_HWRXBUF_RXBURST_OFFSET	0
+#define	HW_USBCTRL_HWRXBUF_RXBURST_MASK		0xff
+
+#define	HW_USBCTRL_GPTIMERLD_GPTLD_OFFSET	0
+#define	HW_USBCTRL_GPTIMERLD_GPTLD_MASK		0xffffff
+
+#define	HW_USBCTRL_GPTIMERCTRL_GPTRUN		(1 << 31)
+#define	HW_USBCTRL_GPTIMERCTRL_GPTRST		(1 << 30)
+#define	HW_USBCTRL_GPTIMERCTRL_GPTMODE		(1 << 24)
+#define	HW_USBCTRL_GPTIMERCTRL_GPTCNT_OFFSET	0
+#define	HW_USBCTRL_GPTIMERCTRL_GPTCNT_MASK	0xffffff
+
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_OFFSET	0
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_MASK	0x7
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR	0x0
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_S_INCR4	0x1
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_S_INCR8	0x2
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_S_INCR16	0x3
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR4	0x5
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR8	0x6
+#define	HW_USBCTRL_SBUSCFG_AHBBURST_U_INCR16	0x7
+
+#endif	/* __REGS_USB_H__ */
diff --git a/arch/arm/include/asm/arch-mx28/regs-usbphy.h b/arch/arm/include/asm/arch-mx28/regs-usbphy.h
new file mode 100644
index 0000000..e823e19
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-usbphy.h
@@ -0,0 +1,151 @@
+/*
+ * Freescale i.MX28 USB PHY Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __REGS_USBPHY_H__
+#define __REGS_USBPHY_H__
+
+struct mx28_usbphy_regs {
+	mx28_reg(hw_usbphy_pwd)
+	mx28_reg(hw_usbphy_tx)
+	mx28_reg(hw_usbphy_rx)
+	mx28_reg(hw_usbphy_ctrl)
+	mx28_reg(hw_usbphy_status)
+	mx28_reg(hw_usbphy_debug)
+	mx28_reg(hw_usbphy_debug0_status)
+	mx28_reg(hw_usbphy_debug1)
+	mx28_reg(hw_usbphy_version)
+	mx28_reg(hw_usbphy_ip)
+};
+
+#define	USBPHY_PWD_RXPWDRX				(1 << 20)
+#define	USBPHY_PWD_RXPWDDIFF				(1 << 19)
+#define	USBPHY_PWD_RXPWD1PT1				(1 << 18)
+#define	USBPHY_PWD_RXPWDENV				(1 << 17)
+#define	USBPHY_PWD_TXPWDV2I				(1 << 12)
+#define	USBPHY_PWD_TXPWDIBIAS				(1 << 11)
+#define	USBPHY_PWD_TXPWDFS				(1 << 10)
+
+#define	USBPHY_TX_USBPHY_TX_EDGECTRL_OFFSET		26
+#define	USBPHY_TX_USBPHY_TX_EDGECTRL_MASK		(0x7 << 26)
+#define	USBPHY_TX_USBPHY_TX_SYNC_INVERT			(1 << 25)
+#define	USBPHY_TX_USBPHY_TX_SYNC_MUX			(1 << 24)
+#define	USBPHY_TX_TXENCAL45DP				(1 << 21)
+#define	USBPHY_TX_TXCAL45DP_OFFSET			16
+#define	USBPHY_TX_TXCAL45DP_MASK			(0xf << 16)
+#define	USBPHY_TX_TXENCAL45DM				(1 << 13)
+#define	USBPHY_TX_TXCAL45DM_OFFSET			8
+#define	USBPHY_TX_TXCAL45DM_MASK			(0xf << 8)
+#define	USBPHY_TX_D_CAL_OFFSET				0
+#define	USBPHY_TX_D_CAL_MASK				0xf
+
+#define	USBPHY_RX_RXDBYPASS				(1 << 22)
+#define	USBPHY_RX_DISCONADJ_OFFSET			4
+#define	USBPHY_RX_DISCONADJ_MASK			(0x7 << 4)
+#define	USBPHY_RX_ENVADJ_OFFSET				0
+#define	USBPHY_RX_ENVADJ_MASK				0x7
+
+#define	USBPHY_CTRL_SFTRST				(1 << 31)
+#define	USBPHY_CTRL_CLKGATE				(1 << 30)
+#define	USBPHY_CTRL_UTMI_SUSPENDM			(1 << 29)
+#define	USBPHY_CTRL_HOST_FORCE_LS_SE0			(1 << 28)
+#define	USBPHY_CTRL_ENAUTOSET_USBCLKS			(1 << 26)
+#define	USBPHY_CTRL_ENAUTOCLR_USBCLKGATE		(1 << 25)
+#define	USBPHY_CTRL_FSDLL_RST_EN			(1 << 24)
+#define	USBPHY_CTRL_ENVBUSCHG_WKUP			(1 << 23)
+#define	USBPHY_CTRL_ENIDCHG_WKUP			(1 << 22)
+#define	USBPHY_CTRL_ENDPDMCHG_WKUP			(1 << 21)
+#define	USBPHY_CTRL_ENAUTOCLR_PHY_PWD			(1 << 20)
+#define	USBPHY_CTRL_ENAUTOCLR_CLKGATE			(1 << 19)
+#define	USBPHY_CTRL_ENAUTO_PWRON_PLL			(1 << 18)
+#define	USBPHY_CTRL_WAKEUP_IRQ				(1 << 17)
+#define	USBPHY_CTRL_ENIRQWAKEUP				(1 << 16)
+#define	USBPHY_CTRL_ENUTMILEVEL3			(1 << 15)
+#define	USBPHY_CTRL_ENUTMILEVEL2			(1 << 14)
+#define	USBPHY_CTRL_DATA_ON_LRADC			(1 << 13)
+#define	USBPHY_CTRL_DEVPLUGIN_IRQ			(1 << 12)
+#define	USBPHY_CTRL_ENIRQDEVPLUGIN			(1 << 11)
+#define	USBPHY_CTRL_RESUME_IRQ				(1 << 10)
+#define	USBPHY_CTRL_ENIRQRESUMEDETECT			(1 << 9)
+#define	USBPHY_CTRL_RESUMEIRQSTICKY			(1 << 8)
+#define	USBPHY_CTRL_ENOTGIDDETECT			(1 << 7)
+#define	USBPHY_CTRL_DEVPLUGIN_POLARITY			(1 << 5)
+#define	USBPHY_CTRL_ENDEVPLUGINDETECT			(1 << 4)
+#define	USBPHY_CTRL_HOSTDISCONDETECT_IRQ		(1 << 3)
+#define	USBPHY_CTRL_ENIRQHOSTDISCON			(1 << 2)
+#define	USBPHY_CTRL_ENHOSTDISCONDETECT			(1 << 1)
+
+#define	USBPHY_STATUS_RESUME_STATUS			(1 << 10)
+#define	USBPHY_STATUS_OTGID_STATUS			(1 << 8)
+#define	USBPHY_STATUS_DEVPLUGIN_STATUS			(1 << 6)
+#define	USBPHY_STATUS_HOSTDISCONDETECT_STATUS		(1 << 3)
+
+#define	USBPHY_DEBUG_CLKGATE				(1 << 30)
+#define	USBPHY_DEBUG_HOST_RESUME_DEBUG			(1 << 29)
+#define	USBPHY_DEBUG_SQUELCHRESETLENGTH_OFFSET		25
+#define	USBPHY_DEBUG_SQUELCHRESETLENGTH_MASK		(0xf << 25)
+#define	USBPHY_DEBUG_ENSQUELCHRESET			(1 << 24)
+#define	USBPHY_DEBUG_SQUELCHRESETCOUNT_OFFSET		16
+#define	USBPHY_DEBUG_SQUELCHRESETCOUNT_MASK		(0x1f << 16)
+#define	USBPHY_DEBUG_ENTX2RXCOUNT			(1 << 12)
+#define	USBPHY_DEBUG_TX2RXCOUNT_OFFSET			8
+#define	USBPHY_DEBUG_TX2RXCOUNT_MASK			(0xf << 8)
+#define	USBPHY_DEBUG_ENHSTPULLDOWN_OFFSET		4
+#define	USBPHY_DEBUG_ENHSTPULLDOWN_MASK			(0x3 << 4)
+#define	USBPHY_DEBUG_HSTPULLDOWN_OFFSET			2
+#define	USBPHY_DEBUG_HSTPULLDOWN_MASK			(0x3 << 2)
+#define	USBPHY_DEBUG_DEBUG_INTERFACE_HOLD		(1 << 1)
+#define	USBPHY_DEBUG_OTGIDPIDLOCK			(1 << 0)
+
+#define	USBPHY_DEBUG0_STATUS_SQUELCH_COUNT_OFFSET	26
+#define	USBPHY_DEBUG0_STATUS_SQUELCH_COUNT_MASK		(0x3f << 26)
+#define	USBPHY_DEBUG0_STATUS_UTMI_RXERROR_OFFSET	16
+#define	USBPHY_DEBUG0_STATUS_UTMI_RXERROR_MASK		(0x3ff << 16)
+#define	USBPHY_DEBUG0_STATUS_LOOP_BACK_OFFSET		0
+#define	USBPHY_DEBUG0_STATUS_LOOP_BACK_MASK		0xffff
+
+#define	USBPHY_DEBUG1_ENTAILADJVD_OFFSET		13
+#define	USBPHY_DEBUG1_ENTAILADJVD_MASK			(0x3 << 13)
+#define	USBPHY_DEBUG1_ENTX2TX				(1 << 12)
+#define	USBPHY_DEBUG1_DBG_ADDRESS_OFFSET		0
+#define	USBPHY_DEBUG1_DBG_ADDRESS_MASK			0xf
+
+#define	USBPHY_VERSION_MAJOR_MASK			(0xff << 24)
+#define	USBPHY_VERSION_MAJOR_OFFSET			24
+#define	USBPHY_VERSION_MINOR_MASK			(0xff << 16)
+#define	USBPHY_VERSION_MINOR_OFFSET			16
+#define	USBPHY_VERSION_STEP_MASK			0xffff
+#define	USBPHY_VERSION_STEP_OFFSET			0
+
+#define	USBPHY_IP_DIV_SEL_OFFSET			23
+#define	USBPHY_IP_DIV_SEL_MASK				(0x3 << 23)
+#define	USBPHY_IP_LFR_SEL_OFFSET			21
+#define	USBPHY_IP_LFR_SEL_MASK				(0x3 << 21)
+#define	USBPHY_IP_CP_SEL_OFFSET				19
+#define	USBPHY_IP_CP_SEL_MASK				(0x3 << 19)
+#define	USBPHY_IP_TSTI_TX_DP				(1 << 18)
+#define	USBPHY_IP_TSTI_TX_DM				(1 << 17)
+#define	USBPHY_IP_ANALOG_TESTMODE			(1 << 16)
+#define	USBPHY_IP_EN_USB_CLKS				(1 << 2)
+#define	USBPHY_IP_PLL_LOCKED				(1 << 1)
+#define	USBPHY_IP_PLL_POWER				(1 << 0)
+
+#endif	/* __REGS_USBPHY_H__ */