mips: Move cpu/mips/* to arch/mips/cpu/*

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

14 files changed, 4305 insertions, 0 deletions

diff --git a/arch/mips/cpu/Makefile b/arch/mips/cpu/Makefile
new file mode 100644
index 00000000000..28a1cbb1042
--- /dev/null
+++ b/arch/mips/cpu/Makefile
@@ -0,0 +1,53 @@
+#
+# (C) Copyright 2003-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(CPU).a
+
+START	= start.o
+SOBJS-y	= cache.o
+COBJS-y	= cpu.o interrupts.o
+
+SOBJS-$(CONFIG_INCA_IP)	+= incaip_wdt.o
+COBJS-$(CONFIG_INCA_IP)	+= asc_serial.o incaip_clock.o
+COBJS-$(CONFIG_PURPLE)	+= asc_serial.o
+COBJS-$(CONFIG_SOC_AU1X00) += au1x00_eth.o au1x00_serial.o au1x00_usb_ohci.o
+
+SRCS	:= $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+START	:= $(addprefix $(obj),$(START))
+
+all:	$(obj).depend $(START) $(LIB)
+
+$(LIB):	$(OBJS)
+	$(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/mips/cpu/asc_serial.c b/arch/mips/cpu/asc_serial.c
new file mode 100644
index 00000000000..be686c2ae8d
--- /dev/null
+++ b/arch/mips/cpu/asc_serial.c
@@ -0,0 +1,368 @@
+/*
+ * (INCA) ASC UART support
+ */
+
+#include <config.h>
+
+#ifdef CONFIG_PURPLE
+#define	serial_init	asc_serial_init
+#define	serial_putc	asc_serial_putc
+#define	serial_puts	asc_serial_puts
+#define	serial_getc	asc_serial_getc
+#define	serial_tstc	asc_serial_tstc
+#define	serial_setbrg	asc_serial_setbrg
+#endif
+
+#include <common.h>
+#include <asm/inca-ip.h>
+#include "asc_serial.h"
+
+#ifdef CONFIG_PURPLE
+
+#undef ASC_FIFO_PRESENT
+#define TOUT_LOOP	100000
+
+/* Set base address for second FPI interrupt control register bank */
+#define SFPI_INTCON_BASEADDR	0xBF0F0000
+
+/* Register offset from base address */
+#define FBS_ISR		0x00000000	/* Interrupt status register */
+#define FBS_IMR		0x00000008	/* Interrupt mask register */
+#define FBS_IDIS	0x00000010	/* Interrupt disable register */
+
+/* Interrupt status register bits */
+#define FBS_ISR_AT	0x00000040	/* ASC transmit interrupt */
+#define FBS_ISR_AR	0x00000020	/* ASC receive interrupt */
+#define FBS_ISR_AE	0x00000010	/* ASC error interrupt */
+#define FBS_ISR_AB	0x00000008	/* ASC transmit buffer interrupt */
+#define FBS_ISR_AS      0x00000004	/* ASC start of autobaud detection interrupt */
+#define FBS_ISR_AF	0x00000002	/* ASC end of autobaud detection interrupt */
+
+#else
+
+#define ASC_FIFO_PRESENT
+
+#endif
+
+
+#define SET_BIT(reg, mask)                  reg |= (mask)
+#define CLEAR_BIT(reg, mask)                reg &= (~mask)
+#define CLEAR_BITS(reg, mask)               CLEAR_BIT(reg, mask)
+#define SET_BITS(reg, mask)                 SET_BIT(reg, mask)
+#define SET_BITFIELD(reg, mask, off, val)   {reg &= (~mask); reg |= (val << off);}
+
+extern uint incaip_get_fpiclk(void);
+
+static int serial_setopt (void);
+
+/* pointer to ASC register base address */
+static volatile incaAsc_t *pAsc = (incaAsc_t *)INCA_IP_ASC;
+
+/******************************************************************************
+*
+* serial_init - initialize a INCAASC channel
+*
+* This routine initializes the number of data bits, parity
+* and set the selected baud rate. Interrupts are disabled.
+* Set the modem control signals if the option is selected.
+*
+* RETURNS: N/A
+*/
+
+int serial_init (void)
+{
+#ifdef CONFIG_INCA_IP
+    /* we have to set PMU.EN13 bit to enable an ASC device*/
+    INCAASC_PMU_ENABLE(13);
+#endif
+
+    /* and we have to set CLC register*/
+    CLEAR_BIT(pAsc->asc_clc, ASCCLC_DISS);
+    SET_BITFIELD(pAsc->asc_clc, ASCCLC_RMCMASK, ASCCLC_RMCOFFSET, 0x0001);
+
+    /* initialy we are in async mode */
+    pAsc->asc_con = ASCCON_M_8ASYNC;
+
+    /* select input port */
+    pAsc->asc_pisel = (CONSOLE_TTY & 0x1);
+
+#ifdef ASC_FIFO_PRESENT
+    /* TXFIFO's filling level */
+    SET_BITFIELD(pAsc->asc_txfcon, ASCTXFCON_TXFITLMASK,
+		    ASCTXFCON_TXFITLOFF, INCAASC_TXFIFO_FL);
+    /* enable TXFIFO */
+    SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXFEN);
+
+    /* RXFIFO's filling level */
+    SET_BITFIELD(pAsc->asc_txfcon, ASCRXFCON_RXFITLMASK,
+		    ASCRXFCON_RXFITLOFF, INCAASC_RXFIFO_FL);
+    /* enable RXFIFO */
+    SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXFEN);
+#endif
+
+    /* enable error signals */
+    SET_BIT(pAsc->asc_con, ASCCON_FEN);
+    SET_BIT(pAsc->asc_con, ASCCON_OEN);
+
+#ifdef CONFIG_INCA_IP
+    /* acknowledge ASC interrupts */
+    ASC_INTERRUPTS_CLEAR(INCAASC_IRQ_LINE_ALL);
+
+    /* disable ASC interrupts */
+    ASC_INTERRUPTS_DISABLE(INCAASC_IRQ_LINE_ALL);
+#endif
+
+#ifdef ASC_FIFO_PRESENT
+    /* set FIFOs into the transparent mode */
+    SET_BIT(pAsc->asc_txfcon, ASCTXFCON_TXTMEN);
+    SET_BIT(pAsc->asc_rxfcon, ASCRXFCON_RXTMEN);
+#endif
+
+    /* set baud rate */
+    serial_setbrg();
+
+    /* set the options */
+    serial_setopt();
+
+    return 0;
+}
+
+void serial_setbrg (void)
+{
+    ulong      uiReloadValue, fdv;
+    ulong      f_ASC;
+
+#ifdef CONFIG_INCA_IP
+    f_ASC = incaip_get_fpiclk();
+#else
+    f_ASC = ASC_CLOCK_RATE;
+#endif
+
+#ifndef INCAASC_USE_FDV
+    fdv = 2;
+    uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1;
+#else
+    fdv = INCAASC_FDV_HIGH_BAUDRATE;
+    uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1;
+#endif /* INCAASC_USE_FDV */
+
+    if ( (uiReloadValue < 0) || (uiReloadValue > 8191) )
+    {
+#ifndef INCAASC_USE_FDV
+	fdv = 3;
+	uiReloadValue = (f_ASC / (fdv * 16 * CONFIG_BAUDRATE)) - 1;
+#else
+	fdv = INCAASC_FDV_LOW_BAUDRATE;
+	uiReloadValue = (f_ASC / (8192 * CONFIG_BAUDRATE / fdv)) - 1;
+#endif /* INCAASC_USE_FDV */
+
+	if ( (uiReloadValue < 0) || (uiReloadValue > 8191) )
+	{
+	    return;    /* can't impossibly generate that baud rate */
+	}
+    }
+
+    /* Disable Baud Rate Generator; BG should only be written when R=0 */
+    CLEAR_BIT(pAsc->asc_con, ASCCON_R);
+
+#ifndef INCAASC_USE_FDV
+    /*
+     * Disable Fractional Divider (FDE)
+     * Divide clock by reload-value + constant (BRS)
+     */
+    /* FDE = 0 */
+    CLEAR_BIT(pAsc->asc_con, ASCCON_FDE);
+
+    if ( fdv == 2 )
+	CLEAR_BIT(pAsc->asc_con, ASCCON_BRS);   /* BRS = 0 */
+    else
+	SET_BIT(pAsc->asc_con, ASCCON_BRS); /* BRS = 1 */
+
+#else /* INCAASC_USE_FDV */
+
+    /* Enable Fractional Divider */
+    SET_BIT(pAsc->asc_con, ASCCON_FDE); /* FDE = 1 */
+
+    /* Set fractional divider value */
+    pAsc->asc_fdv = fdv & ASCFDV_VALUE_MASK;
+
+#endif /* INCAASC_USE_FDV */
+
+    /* Set reload value in BG */
+    pAsc->asc_bg = uiReloadValue;
+
+    /* Enable Baud Rate Generator */
+    SET_BIT(pAsc->asc_con, ASCCON_R);           /* R = 1 */
+}
+
+/*******************************************************************************
+*
+* serial_setopt - set the serial options
+*
+* Set the channel operating mode to that specified. Following options
+* are supported: CREAD, CSIZE, PARENB, and PARODD.
+*
+* Note, this routine disables the transmitter.  The calling routine
+* may have to re-enable it.
+*
+* RETURNS:
+* Returns 0 to indicate success, otherwise -1 is returned
+*/
+
+static int serial_setopt (void)
+{
+    ulong  con;
+
+    switch ( ASC_OPTIONS & ASCOPT_CSIZE )
+    {
+    /* 7-bit-data */
+    case ASCOPT_CS7:
+	con = ASCCON_M_7ASYNCPAR;   /* 7-bit-data and parity bit */
+	break;
+
+    /* 8-bit-data */
+    case ASCOPT_CS8:
+	if ( ASC_OPTIONS & ASCOPT_PARENB )
+	    con = ASCCON_M_8ASYNCPAR;   /* 8-bit-data and parity bit */
+	else
+	    con = ASCCON_M_8ASYNC;      /* 8-bit-data no parity */
+	break;
+
+    /*
+     *  only 7 and 8-bit frames are supported
+     *  if we don't use IOCTL extensions
+     */
+    default:
+	return -1;
+    }
+
+    if ( ASC_OPTIONS & ASCOPT_STOPB )
+	SET_BIT(con, ASCCON_STP);       /* 2 stop bits */
+    else
+	CLEAR_BIT(con, ASCCON_STP);     /* 1 stop bit */
+
+    if ( ASC_OPTIONS & ASCOPT_PARENB )
+	SET_BIT(con, ASCCON_PEN);           /* enable parity checking */
+    else
+	CLEAR_BIT(con, ASCCON_PEN);         /* disable parity checking */
+
+    if ( ASC_OPTIONS & ASCOPT_PARODD )
+	SET_BIT(con, ASCCON_ODD);       /* odd parity */
+    else
+	CLEAR_BIT(con, ASCCON_ODD);     /* even parity */
+
+    if ( ASC_OPTIONS & ASCOPT_CREAD )
+	SET_BIT(pAsc->asc_whbcon, ASCWHBCON_SETREN); /* Receiver enable */
+
+    pAsc->asc_con |= con;
+
+    return 0;
+}
+
+void serial_putc (const char c)
+{
+#ifdef ASC_FIFO_PRESENT
+    uint txFl = 0;
+#else
+    uint timeout = 0;
+#endif
+
+    if (c == '\n') serial_putc ('\r');
+
+#ifdef ASC_FIFO_PRESENT
+    /* check do we have a free space in the TX FIFO */
+    /* get current filling level */
+    do
+    {
+	txFl = ( pAsc->asc_fstat & ASCFSTAT_TXFFLMASK ) >> ASCFSTAT_TXFFLOFF;
+    }
+    while ( txFl == INCAASC_TXFIFO_FULL );
+#else
+
+    while(!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) &
+			   FBS_ISR_AB))
+    {
+	    if (timeout++ > TOUT_LOOP)
+	    {
+		    break;
+	    }
+    }
+#endif
+
+    pAsc->asc_tbuf = c; /* write char to Transmit Buffer Register */
+
+#ifndef ASC_FIFO_PRESENT
+    *(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AB |
+								 FBS_ISR_AT;
+#endif
+
+    /* check for errors */
+    if ( pAsc->asc_con & ASCCON_OE )
+    {
+	SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE);
+	return;
+    }
+}
+
+void serial_puts (const char *s)
+{
+    while (*s)
+    {
+	serial_putc (*s++);
+    }
+}
+
+int serial_getc (void)
+{
+    ulong symbol_mask;
+    char c;
+
+    while (!serial_tstc());
+
+    symbol_mask =
+	((ASC_OPTIONS & ASCOPT_CSIZE) == ASCOPT_CS7) ? (0x7f) : (0xff);
+
+    c = (char)(pAsc->asc_rbuf & symbol_mask);
+
+#ifndef ASC_FIFO_PRESENT
+    *(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) = FBS_ISR_AR;
+#endif
+
+    return c;
+}
+
+int serial_tstc (void)
+{
+    int res = 1;
+
+#ifdef ASC_FIFO_PRESENT
+    if ( (pAsc->asc_fstat & ASCFSTAT_RXFFLMASK) == 0 )
+    {
+	res = 0;
+    }
+#else
+    if (!(*(volatile unsigned long*)(SFPI_INTCON_BASEADDR + FBS_ISR) &
+								FBS_ISR_AR))
+
+    {
+	res = 0;
+    }
+#endif
+    else if ( pAsc->asc_con & ASCCON_FE )
+    {
+	SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRFE);
+	res = 0;
+    }
+    else if ( pAsc->asc_con & ASCCON_PE )
+    {
+	SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLRPE);
+	res = 0;
+    }
+    else if ( pAsc->asc_con & ASCCON_OE )
+    {
+	SET_BIT(pAsc->asc_whbcon, ASCWHBCON_CLROE);
+	res = 0;
+    }
+
+    return res;
+}
diff --git a/arch/mips/cpu/asc_serial.h b/arch/mips/cpu/asc_serial.h
new file mode 100644
index 00000000000..7ffdcfaf8b7
--- /dev/null
+++ b/arch/mips/cpu/asc_serial.h
@@ -0,0 +1,177 @@
+/* incaAscSio.h - (INCA) ASC UART tty driver header */
+
+#ifndef __INCincaAscSioh
+#define __INCincaAscSioh
+
+#include <asm/inca-ip.h>
+
+/* channel operating modes */
+#define	ASCOPT_CSIZE	0x00000003
+#define	ASCOPT_CS7	0x00000001
+#define	ASCOPT_CS8	0x00000002
+#define	ASCOPT_PARENB	0x00000004
+#define	ASCOPT_STOPB	0x00000008
+#define	ASCOPT_PARODD	0x00000010
+#define	ASCOPT_CREAD	0x00000020
+
+#define ASC_OPTIONS		(ASCOPT_CREAD | ASCOPT_CS8)
+
+/* ASC input select (0 or 1) */
+#define CONSOLE_TTY	0
+
+/* use fractional divider for baudrate settings */
+#define INCAASC_USE_FDV
+
+#ifdef INCAASC_USE_FDV
+   #define INCAASC_FDV_LOW_BAUDRATE        71
+   #define INCAASC_FDV_HIGH_BAUDRATE       453
+#endif /*INCAASC_USE_FDV*/
+
+
+#define INCAASC_TXFIFO_FL       1
+#define INCAASC_RXFIFO_FL       1
+#define INCAASC_TXFIFO_FULL     16
+
+/* interrupt lines masks for the ASC device interrupts*/
+/* change these macroses if it's necessary */
+#define INCAASC_IRQ_LINE_ALL        0x000F0000  /* all IRQs */
+
+#define INCAASC_IRQ_LINE_TIR            0x00010000      /* TIR - Tx */
+#define INCAASC_IRQ_LINE_RIR            0x00020000      /* RIR - Rx */
+#define INCAASC_IRQ_LINE_EIR            0x00040000      /* EIR - Err */
+#define INCAASC_IRQ_LINE_TBIR           0x00080000      /* TBIR - Tx Buf*/
+
+/* interrupt controller access macros */
+#define ASC_INTERRUPTS_ENABLE(X)  \
+   *((volatile unsigned int*) INCA_IP_ICU_IM2_IER) |= X;
+#define ASC_INTERRUPTS_DISABLE(X) \
+   *((volatile unsigned int*) INCA_IP_ICU_IM2_IER) &= ~X;
+#define ASC_INTERRUPTS_CLEAR(X)   \
+   *((volatile unsigned int*) INCA_IP_ICU_IM2_ISR) = X;
+
+/* CLC register's bits and bitfields */
+#define ASCCLC_DISR        0x00000001
+#define ASCCLC_DISS        0x00000002
+#define ASCCLC_RMCMASK     0x0000FF00
+#define ASCCLC_RMCOFFSET   8
+
+/* CON register's bits and bitfields */
+#define ASCCON_MODEMASK 0x0007
+    #define ASCCON_M_8SYNC          0x0
+    #define ASCCON_M_8ASYNC         0x1
+    #define ASCCON_M_8IRDAASYNC     0x2
+    #define ASCCON_M_7ASYNCPAR      0x3
+    #define ASCCON_M_9ASYNC         0x4
+    #define ASCCON_M_8WAKEUPASYNC   0x5
+    #define ASCCON_M_8ASYNCPAR      0x7
+#define ASCCON_STP      0x0008
+#define ASCCON_REN      0x0010
+#define ASCCON_PEN      0x0020
+#define ASCCON_FEN      0x0040
+#define ASCCON_OEN      0x0080
+#define ASCCON_PE       0x0100
+#define ASCCON_FE       0x0200
+#define ASCCON_OE       0x0400
+#define ASCCON_FDE      0x0800
+#define ASCCON_ODD      0x1000
+#define ASCCON_BRS      0x2000
+#define ASCCON_LB       0x4000
+#define ASCCON_R        0x8000
+
+/* WHBCON register's bits and bitfields */
+#define ASCWHBCON_CLRREN    0x0010
+#define ASCWHBCON_SETREN    0x0020
+#define ASCWHBCON_CLRPE     0x0100
+#define ASCWHBCON_CLRFE     0x0200
+#define ASCWHBCON_CLROE     0x0400
+#define ASCWHBCON_SETPE     0x0800
+#define ASCWHBCON_SETFE     0x1000
+#define ASCWHBCON_SETOE     0x2000
+
+/* ABCON register's bits and bitfields */
+#define ASCABCON_ABEN       0x0001
+#define ASCABCON_AUREN      0x0002
+#define ASCABCON_ABSTEN     0x0004
+#define ASCABCON_ABDETEN    0x0008
+#define ASCABCON_FCDETEN    0x0010
+#define ASCABCON_EMMASK     0x0300
+    #define ASCABCON_EMOFF          8
+	#define ASCABCON_EM_DISAB       0x0
+	#define ASCABCON_EM_DURAB       0x1
+	#define ASCABCON_EM_ALWAYS      0x2
+#define ASCABCON_TXINV      0x0400
+#define ASCABCON_RXINV      0x0800
+
+/* FDV register mask, offset and bitfields*/
+#define ASCFDV_VALUE_MASK     0x000001FF
+
+/* WHBABCON register's bits and bitfields */
+#define ASCWHBABCON_SETABEN     0x0001
+#define ASCWHBABCON_CLRABEN     0x0002
+
+/* ABSTAT register's bits and bitfields */
+#define ASCABSTAT_FCSDET    0x0001
+#define ASCABSTAT_FCCDET    0x0002
+#define ASCABSTAT_SCSDET    0x0004
+#define ASCABSTAT_SCCDET    0x0008
+#define ASCABSTAT_DETWAIT   0x0010
+
+/* WHBABSTAT register's bits and bitfields */
+#define ASCWHBABSTAT_CLRFCSDET  0x0001
+#define ASCWHBABSTAT_SETFCSDET  0x0002
+#define ASCWHBABSTAT_CLRFCCDET  0x0004
+#define ASCWHBABSTAT_SETFCCDET  0x0008
+#define ASCWHBABSTAT_CLRSCSDET  0x0010
+#define ASCWHBABSTAT_SETSCSDET  0x0020
+#define ASCWHBABSTAT_SETSCCDET  0x0040
+#define ASCWHBABSTAT_CLRSCCDET  0x0080
+#define ASCWHBABSTAT_CLRDETWAIT 0x0100
+#define ASCWHBABSTAT_SETDETWAIT 0x0200
+
+/* TXFCON register's bits and bitfields */
+#define ASCTXFCON_TXFEN         0x0001
+#define ASCTXFCON_TXFFLU        0x0002
+#define ASCTXFCON_TXTMEN        0x0004
+#define ASCTXFCON_TXFITLMASK    0x3F00
+#define ASCTXFCON_TXFITLOFF     8
+
+/* RXFCON register's bits and bitfields */
+#define ASCRXFCON_RXFEN         0x0001
+#define ASCRXFCON_RXFFLU        0x0002
+#define ASCRXFCON_RXTMEN        0x0004
+#define ASCRXFCON_RXFITLMASK    0x3F00
+#define ASCRXFCON_RXFITLOFF     8
+
+/* FSTAT register's bits and bitfields */
+#define ASCFSTAT_RXFFLMASK      0x003F
+#define ASCFSTAT_TXFFLMASK      0x3F00
+#define ASCFSTAT_TXFFLOFF       8
+
+#define INCAASC_PMU_ENABLE(BIT) *((volatile ulong*)0xBF102000) |= (0x1 << BIT);
+
+typedef  struct         /* incaAsc_t */
+{
+    volatile unsigned long  asc_clc;                            /*0x0000*/
+    volatile unsigned long  asc_pisel;                          /*0x0004*/
+    volatile unsigned long  asc_rsvd1[2];   /* for mapping */   /*0x0008*/
+    volatile unsigned long  asc_con;                            /*0x0010*/
+    volatile unsigned long  asc_bg;                             /*0x0014*/
+    volatile unsigned long  asc_fdv;                            /*0x0018*/
+    volatile unsigned long  asc_pmw;        /* not used */      /*0x001C*/
+    volatile unsigned long  asc_tbuf;                           /*0x0020*/
+    volatile unsigned long  asc_rbuf;                           /*0x0024*/
+    volatile unsigned long  asc_rsvd2[2];   /* for mapping */   /*0x0028*/
+    volatile unsigned long  asc_abcon;                          /*0x0030*/
+    volatile unsigned long  asc_abstat;     /* not used */      /*0x0034*/
+    volatile unsigned long  asc_rsvd3[2];   /* for mapping */   /*0x0038*/
+    volatile unsigned long  asc_rxfcon;                         /*0x0040*/
+    volatile unsigned long  asc_txfcon;                         /*0x0044*/
+    volatile unsigned long  asc_fstat;                          /*0x0048*/
+    volatile unsigned long  asc_rsvd4;      /* for mapping */   /*0x004C*/
+    volatile unsigned long  asc_whbcon;                         /*0x0050*/
+    volatile unsigned long  asc_whbabcon;                       /*0x0054*/
+    volatile unsigned long  asc_whbabstat;  /* not used */      /*0x0058*/
+
+} incaAsc_t;
+
+#endif /* __INCincaAscSioh */
diff --git a/arch/mips/cpu/au1x00_eth.c b/arch/mips/cpu/au1x00_eth.c
new file mode 100644
index 00000000000..5074997a29b
--- /dev/null
+++ b/arch/mips/cpu/au1x00_eth.c
@@ -0,0 +1,311 @@
+/* Only eth0 supported for now
+ *
+ * (C) Copyright 2003
+ * Thomas.Lange@corelatus.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+#include <config.h>
+
+#if defined(CONFIG_SYS_DISCOVER_PHY)
+#error "PHY not supported yet"
+/* We just assume that we are running 100FD for now */
+/* We all use switches, right? ;-) */
+#endif
+
+/* I assume ethernet behaves like au1000 */
+
+#ifdef CONFIG_SOC_AU1000
+/* Base address differ between cpu:s */
+#define ETH0_BASE AU1000_ETH0_BASE
+#define MAC0_ENABLE AU1000_MAC0_ENABLE
+#else
+#ifdef CONFIG_SOC_AU1100
+#define ETH0_BASE AU1100_ETH0_BASE
+#define MAC0_ENABLE AU1100_MAC0_ENABLE
+#else
+#ifdef CONFIG_SOC_AU1500
+#define ETH0_BASE AU1500_ETH0_BASE
+#define MAC0_ENABLE AU1500_MAC0_ENABLE
+#else
+#ifdef CONFIG_SOC_AU1550
+#define ETH0_BASE AU1550_ETH0_BASE
+#define MAC0_ENABLE AU1550_MAC0_ENABLE
+#else
+#error "No valid cpu set"
+#endif
+#endif
+#endif
+#endif
+
+#include <common.h>
+#include <malloc.h>
+#include <net.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/au1x00.h>
+
+#if defined(CONFIG_CMD_MII)
+#include <miiphy.h>
+#endif
+
+/* Ethernet Transmit and Receive Buffers */
+#define DBUF_LENGTH  1520
+#define PKT_MAXBUF_SIZE		1518
+
+static char txbuf[DBUF_LENGTH];
+
+static int next_tx;
+static int next_rx;
+
+/* 4 rx and 4 tx fifos */
+#define NO_OF_FIFOS 4
+
+typedef struct{
+	u32 status;
+	u32 addr;
+	u32 len; /* Only used for tx */
+	u32 not_used;
+} mac_fifo_t;
+
+mac_fifo_t mac_fifo[NO_OF_FIFOS];
+
+#define MAX_WAIT 1000
+
+#if defined(CONFIG_CMD_MII)
+int  au1x00_miiphy_read(char *devname, unsigned char addr,
+		unsigned char reg, unsigned short * value)
+{
+	volatile u32 *mii_control_reg = (volatile u32*)(ETH0_BASE+MAC_MII_CNTRL);
+	volatile u32 *mii_data_reg = (volatile u32*)(ETH0_BASE+MAC_MII_DATA);
+	u32 mii_control;
+	unsigned int timedout = 20;
+
+	while (*mii_control_reg & MAC_MII_BUSY) {
+		udelay(1000);
+		if (--timedout == 0) {
+			printf("au1x00_eth: miiphy_read busy timeout!!\n");
+			return -1;
+		}
+	}
+
+	mii_control = MAC_SET_MII_SELECT_REG(reg) |
+		MAC_SET_MII_SELECT_PHY(addr) | MAC_MII_READ;
+
+	*mii_control_reg = mii_control;
+
+	timedout = 20;
+	while (*mii_control_reg & MAC_MII_BUSY) {
+		udelay(1000);
+		if (--timedout == 0) {
+			printf("au1x00_eth: miiphy_read busy timeout!!\n");
+			return -1;
+		}
+	}
+	*value = *mii_data_reg;
+	return 0;
+}
+
+int  au1x00_miiphy_write(char *devname, unsigned char addr,
+		unsigned char reg, unsigned short value)
+{
+	volatile u32 *mii_control_reg = (volatile u32*)(ETH0_BASE+MAC_MII_CNTRL);
+	volatile u32 *mii_data_reg = (volatile u32*)(ETH0_BASE+MAC_MII_DATA);
+	u32 mii_control;
+	unsigned int timedout = 20;
+
+	while (*mii_control_reg & MAC_MII_BUSY) {
+		udelay(1000);
+		if (--timedout == 0) {
+			printf("au1x00_eth: miiphy_write busy timeout!!\n");
+			return -1;
+		}
+	}
+
+	mii_control = MAC_SET_MII_SELECT_REG(reg) |
+		MAC_SET_MII_SELECT_PHY(addr) | MAC_MII_WRITE;
+
+	*mii_data_reg = value;
+	*mii_control_reg = mii_control;
+	return 0;
+}
+#endif
+
+static int au1x00_send(struct eth_device* dev, volatile void *packet, int length){
+	volatile mac_fifo_t *fifo_tx =
+		(volatile mac_fifo_t*)(MAC0_TX_DMA_ADDR+MAC_TX_BUFF0_STATUS);
+	int i;
+	int res;
+
+	/* tx fifo should always be idle */
+	fifo_tx[next_tx].len = length;
+	fifo_tx[next_tx].addr = (virt_to_phys(packet))|TX_DMA_ENABLE;
+	au_sync();
+
+	udelay(1);
+	i=0;
+	while(!(fifo_tx[next_tx].addr&TX_T_DONE)){
+		if(i>MAX_WAIT){
+			printf("TX timeout\n");
+			break;
+		}
+		udelay(1);
+		i++;
+	}
+
+	/* Clear done bit */
+	fifo_tx[next_tx].addr = 0;
+	fifo_tx[next_tx].len = 0;
+	au_sync();
+
+	res = fifo_tx[next_tx].status;
+
+	next_tx++;
+	if(next_tx>=NO_OF_FIFOS){
+		next_tx=0;
+	}
+	return(res);
+}
+
+static int au1x00_recv(struct eth_device* dev){
+	volatile mac_fifo_t *fifo_rx =
+		(volatile mac_fifo_t*)(MAC0_RX_DMA_ADDR+MAC_RX_BUFF0_STATUS);
+
+	int length;
+	u32 status;
+
+	for(;;){
+		if(!(fifo_rx[next_rx].addr&RX_T_DONE)){
+			/* Nothing has been received */
+			return(-1);
+		}
+
+		status = fifo_rx[next_rx].status;
+
+		length = status&0x3FFF;
+
+		if(status&RX_ERROR){
+			printf("Rx error 0x%x\n", status);
+		}
+		else{
+			/* Pass the packet up to the protocol layers. */
+			NetReceive(NetRxPackets[next_rx], length - 4);
+		}
+
+		fifo_rx[next_rx].addr = (virt_to_phys(NetRxPackets[next_rx]))|RX_DMA_ENABLE;
+
+		next_rx++;
+		if(next_rx>=NO_OF_FIFOS){
+			next_rx=0;
+		}
+	} /* for */
+
+	return(0); /* Does anyone use this? */
+}
+
+static int au1x00_init(struct eth_device* dev, bd_t * bd){
+
+	volatile u32 *macen = (volatile u32*)MAC0_ENABLE;
+	volatile u32 *mac_ctrl = (volatile u32*)(ETH0_BASE+MAC_CONTROL);
+	volatile u32 *mac_addr_high = (volatile u32*)(ETH0_BASE+MAC_ADDRESS_HIGH);
+	volatile u32 *mac_addr_low = (volatile u32*)(ETH0_BASE+MAC_ADDRESS_LOW);
+	volatile u32 *mac_mcast_high = (volatile u32*)(ETH0_BASE+MAC_MCAST_HIGH);
+	volatile u32 *mac_mcast_low = (volatile u32*)(ETH0_BASE+MAC_MCAST_LOW);
+	volatile mac_fifo_t *fifo_tx =
+		(volatile mac_fifo_t*)(MAC0_TX_DMA_ADDR+MAC_TX_BUFF0_STATUS);
+	volatile mac_fifo_t *fifo_rx =
+		(volatile mac_fifo_t*)(MAC0_RX_DMA_ADDR+MAC_RX_BUFF0_STATUS);
+	int i;
+
+	next_tx = TX_GET_DMA_BUFFER(fifo_tx[0].addr);
+	next_rx = RX_GET_DMA_BUFFER(fifo_rx[0].addr);
+
+	/* We have to enable clocks before releasing reset */
+	*macen = MAC_EN_CLOCK_ENABLE;
+	udelay(10);
+
+	/* Enable MAC0 */
+	/* We have to release reset before accessing registers */
+	*macen = MAC_EN_CLOCK_ENABLE|MAC_EN_RESET0|
+		MAC_EN_RESET1|MAC_EN_RESET2;
+	udelay(10);
+
+	for(i=0;i<NO_OF_FIFOS;i++){
+		fifo_tx[i].len = 0;
+		fifo_tx[i].addr = virt_to_phys(&txbuf[0]);
+		fifo_rx[i].addr = (virt_to_phys(NetRxPackets[i]))|RX_DMA_ENABLE;
+	}
+
+	/* Put mac addr in little endian */
+#define ea eth_get_dev()->enetaddr
+	*mac_addr_high	=	(ea[5] <<  8) | (ea[4]	    ) ;
+	*mac_addr_low	=	(ea[3] << 24) | (ea[2] << 16) |
+		(ea[1] <<  8) | (ea[0]	    ) ;
+#undef ea
+	*mac_mcast_low = 0;
+	*mac_mcast_high = 0;
+
+	/* Make sure the MAC buffer is in the correct endian mode */
+#ifdef __LITTLE_ENDIAN
+	*mac_ctrl = MAC_FULL_DUPLEX;
+	udelay(1);
+	*mac_ctrl = MAC_FULL_DUPLEX|MAC_RX_ENABLE|MAC_TX_ENABLE;
+#else
+	*mac_ctrl = MAC_BIG_ENDIAN|MAC_FULL_DUPLEX;
+	udelay(1);
+	*mac_ctrl = MAC_BIG_ENDIAN|MAC_FULL_DUPLEX|MAC_RX_ENABLE|MAC_TX_ENABLE;
+#endif
+
+	return(1);
+}
+
+static void au1x00_halt(struct eth_device* dev){
+	volatile u32 *macen = (volatile u32*)MAC0_ENABLE;
+
+	/* Put MAC0 in reset */
+	*macen = 0;
+}
+
+int au1x00_enet_initialize(bd_t *bis){
+	struct eth_device* dev;
+
+	if ((dev = (struct eth_device*)malloc(sizeof *dev)) == NULL) {
+		puts ("malloc failed\n");
+		return -1;
+	}
+
+	memset(dev, 0, sizeof *dev);
+
+	sprintf(dev->name, "Au1X00 ethernet");
+	dev->iobase = 0;
+	dev->priv   = 0;
+	dev->init   = au1x00_init;
+	dev->halt   = au1x00_halt;
+	dev->send   = au1x00_send;
+	dev->recv   = au1x00_recv;
+
+	eth_register(dev);
+
+#if defined(CONFIG_CMD_MII)
+	miiphy_register(dev->name,
+		au1x00_miiphy_read, au1x00_miiphy_write);
+#endif
+
+	return 1;
+}
diff --git a/arch/mips/cpu/au1x00_serial.c b/arch/mips/cpu/au1x00_serial.c
new file mode 100644
index 00000000000..c25ba5a5b3f
--- /dev/null
+++ b/arch/mips/cpu/au1x00_serial.c
@@ -0,0 +1,131 @@
+/*
+ * AU1X00 UART support
+ *
+ * Hardcoded to UART 0 for now
+ * Speed and options also hardcoded to 115200 8N1
+ *
+ *  Copyright (c) 2003	Thomas.Lange@corelatus.se
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/au1x00.h>
+
+/******************************************************************************
+*
+* serial_init - initialize a channel
+*
+* This routine initializes the number of data bits, parity
+* and set the selected baud rate. Interrupts are disabled.
+* Set the modem control signals if the option is selected.
+*
+* RETURNS: N/A
+*/
+
+int serial_init (void)
+{
+	volatile u32 *uart_fifoctl = (volatile u32*)(UART0_ADDR+UART_FCR);
+	volatile u32 *uart_enable = (volatile u32*)(UART0_ADDR+UART_ENABLE);
+
+	/* Enable clocks first */
+	*uart_enable = UART_EN_CE;
+
+	/* Then release reset */
+	/* Must release reset before setting other regs */
+	*uart_enable = UART_EN_CE|UART_EN_E;
+
+	/* Activate fifos, reset tx and rx */
+	/* Set tx trigger level to 12 */
+	*uart_fifoctl = UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|
+		UART_FCR_CLEAR_XMIT|UART_FCR_T_TRIGGER_12;
+
+	serial_setbrg();
+
+	return 0;
+}
+
+
+void serial_setbrg (void)
+{
+	volatile u32 *uart_clk = (volatile u32*)(UART0_ADDR+UART_CLK);
+	volatile u32 *uart_lcr = (volatile u32*)(UART0_ADDR+UART_LCR);
+	volatile u32 *sys_powerctrl = (u32 *)SYS_POWERCTRL;
+	int sd;
+	int divisorx2;
+
+	/* sd is system clock divisor			*/
+	/* see section 10.4.5 in au1550 datasheet	*/
+	sd = (*sys_powerctrl & 0x03) + 2;
+
+	/* calulate 2x baudrate and round */
+	divisorx2 = ((CONFIG_SYS_MIPS_TIMER_FREQ/(sd * 16 * CONFIG_BAUDRATE)));
+
+	if (divisorx2 & 0x01)
+		divisorx2 = divisorx2 + 1;
+
+	*uart_clk = divisorx2 / 2;
+
+	/* Set parity, stop bits and word length to 8N1 */
+	*uart_lcr = UART_LCR_WLEN8;
+}
+
+void serial_putc (const char c)
+{
+	volatile u32 *uart_lsr = (volatile u32*)(UART0_ADDR+UART_LSR);
+	volatile u32 *uart_tx = (volatile u32*)(UART0_ADDR+UART_TX);
+
+	if (c == '\n') serial_putc ('\r');
+
+	/* Wait for fifo to shift out some bytes */
+	while((*uart_lsr&UART_LSR_THRE)==0);
+
+	*uart_tx = (u32)c;
+}
+
+void serial_puts (const char *s)
+{
+	while (*s)
+	{
+		serial_putc (*s++);
+	}
+}
+
+int serial_getc (void)
+{
+	volatile u32 *uart_rx = (volatile u32*)(UART0_ADDR+UART_RX);
+	char c;
+
+	while (!serial_tstc());
+
+	c = (*uart_rx&0xFF);
+	return c;
+}
+
+int serial_tstc (void)
+{
+	volatile u32 *uart_lsr = (volatile u32*)(UART0_ADDR+UART_LSR);
+
+	if(*uart_lsr&UART_LSR_DR){
+		/* Data in rfifo */
+		return(1);
+	}
+	return 0;
+}
diff --git a/arch/mips/cpu/au1x00_usb_ohci.c b/arch/mips/cpu/au1x00_usb_ohci.c
new file mode 100644
index 00000000000..0bc2305d878
--- /dev/null
+++ b/arch/mips/cpu/au1x00_usb_ohci.c
@@ -0,0 +1,1726 @@
+/*
+ * URB OHCI HCD (Host Controller Driver) for USB on the AU1x00.
+ *
+ * (C) Copyright 2003
+ * Gary Jennejohn, DENX Software Engineering <garyj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ *
+ * Note: Part of this code has been derived from linux
+ *
+ */
+/*
+ * IMPORTANT NOTES
+ * 1 - this driver is intended for use with USB Mass Storage Devices
+ *     (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes!
+ */
+
+#include <config.h>
+
+#ifdef CONFIG_USB_OHCI
+
+/* #include <pci.h> no PCI on the AU1x00 */
+
+#include <common.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/au1x00.h>
+#include <usb.h>
+#include "au1x00_usb_ohci.h"
+
+#define OHCI_USE_NPS		/* force NoPowerSwitching mode */
+#define OHCI_VERBOSE_DEBUG	/* not always helpful */
+#define OHCI_FILL_TRACE
+
+#define USBH_ENABLE_BE (1<<0)
+#define USBH_ENABLE_C  (1<<1)
+#define USBH_ENABLE_E  (1<<2)
+#define USBH_ENABLE_CE (1<<3)
+#define USBH_ENABLE_RD (1<<4)
+
+#ifdef __LITTLE_ENDIAN
+#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C)
+#else
+#define USBH_ENABLE_INIT (USBH_ENABLE_CE | USBH_ENABLE_E | USBH_ENABLE_C | USBH_ENABLE_BE)
+#endif
+
+
+/* For initializing controller (mask in an HCFS mode too) */
+#define OHCI_CONTROL_INIT \
+	(OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
+
+#undef readl
+#undef writel
+
+#define readl(a)     au_readl((long)(a))
+#define writel(v,a)  au_writel((v),(int)(a))
+
+#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
+
+#define DEBUG
+#ifdef DEBUG
+#define dbg(format, arg...) printf("DEBUG: " format "\n", ## arg)
+#else
+#define dbg(format, arg...) do {} while(0)
+#endif /* DEBUG */
+#define err(format, arg...) printf("ERROR: " format "\n", ## arg)
+#define SHOW_INFO
+#ifdef SHOW_INFO
+#define info(format, arg...) printf("INFO: " format "\n", ## arg)
+#else
+#define info(format, arg...) do {} while(0)
+#endif
+
+#define m16_swap(x) swap_16(x)
+#define m32_swap(x) swap_32(x)
+
+/* global ohci_t */
+static ohci_t gohci;
+/* this must be aligned to a 256 byte boundary */
+struct ohci_hcca ghcca[1];
+/* a pointer to the aligned storage */
+struct ohci_hcca *phcca;
+/* this allocates EDs for all possible endpoints */
+struct ohci_device ohci_dev;
+/* urb_priv */
+urb_priv_t urb_priv;
+/* RHSC flag */
+int got_rhsc;
+/* device which was disconnected */
+struct usb_device *devgone;
+
+/*-------------------------------------------------------------------------*/
+
+/* AMD-756 (D2 rev) reports corrupt register contents in some cases.
+ * The erratum (#4) description is incorrect.  AMD's workaround waits
+ * till some bits (mostly reserved) are clear; ok for all revs.
+ */
+#define OHCI_QUIRK_AMD756 0xabcd
+#define read_roothub(hc, register, mask) ({ \
+	u32 temp = readl (&hc->regs->roothub.register); \
+	if (hc->flags & OHCI_QUIRK_AMD756) \
+		while (temp & mask) \
+			temp = readl (&hc->regs->roothub.register); \
+	temp; })
+
+static u32 roothub_a (struct ohci *hc)
+	{ return read_roothub (hc, a, 0xfc0fe000); }
+static inline u32 roothub_b (struct ohci *hc)
+	{ return readl (&hc->regs->roothub.b); }
+static inline u32 roothub_status (struct ohci *hc)
+	{ return readl (&hc->regs->roothub.status); }
+static u32 roothub_portstatus (struct ohci *hc, int i)
+	{ return read_roothub (hc, portstatus [i], 0xffe0fce0); }
+
+
+/* forward declaration */
+static int hc_interrupt (void);
+static void
+td_submit_job (struct usb_device * dev, unsigned long pipe, void * buffer,
+	int transfer_len, struct devrequest * setup, urb_priv_t * urb, int interval);
+
+/*-------------------------------------------------------------------------*
+ * URB support functions
+ *-------------------------------------------------------------------------*/
+
+/* free HCD-private data associated with this URB */
+
+static void urb_free_priv (urb_priv_t * urb)
+{
+	int		i;
+	int		last;
+	struct td	* td;
+
+	last = urb->length - 1;
+	if (last >= 0) {
+		for (i = 0; i <= last; i++) {
+			td = urb->td[i];
+			if (td) {
+				td->usb_dev = NULL;
+				urb->td[i] = NULL;
+			}
+		}
+	}
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef DEBUG
+static int sohci_get_current_frame_number (struct usb_device * dev);
+
+/* debug| print the main components of an URB
+ * small: 0) header + data packets 1) just header */
+
+static void pkt_print (struct usb_device * dev, unsigned long pipe, void * buffer,
+	int transfer_len, struct devrequest * setup, char * str, int small)
+{
+	urb_priv_t * purb = &urb_priv;
+
+	dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,len:%d/%d stat:%#lx",
+			str,
+			sohci_get_current_frame_number (dev),
+			usb_pipedevice (pipe),
+			usb_pipeendpoint (pipe),
+			usb_pipeout (pipe)? 'O': 'I',
+			usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"):
+				(usb_pipecontrol (pipe)? "CTRL": "BULK"),
+			purb->actual_length,
+			transfer_len, dev->status);
+#ifdef	OHCI_VERBOSE_DEBUG
+	if (!small) {
+		int i, len;
+
+		if (usb_pipecontrol (pipe)) {
+			printf (__FILE__ ": cmd(8):");
+			for (i = 0; i < 8 ; i++)
+				printf (" %02x", ((__u8 *) setup) [i]);
+			printf ("\n");
+		}
+		if (transfer_len > 0 && buffer) {
+			printf (__FILE__ ": data(%d/%d):",
+				purb->actual_length,
+				transfer_len);
+			len = usb_pipeout (pipe)?
+					transfer_len: purb->actual_length;
+			for (i = 0; i < 16 && i < len; i++)
+				printf (" %02x", ((__u8 *) buffer) [i]);
+			printf ("%s\n", i < len? "...": "");
+		}
+	}
+#endif
+}
+
+/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/
+void ep_print_int_eds (ohci_t *ohci, char * str) {
+	int i, j;
+	 __u32 * ed_p;
+	for (i= 0; i < 32; i++) {
+		j = 5;
+		ed_p = &(ohci->hcca->int_table [i]);
+		if (*ed_p == 0)
+		    continue;
+		printf (__FILE__ ": %s branch int %2d(%2x):", str, i, i);
+		while (*ed_p != 0 && j--) {
+			ed_t *ed = (ed_t *)m32_swap(ed_p);
+			printf (" ed: %4x;", ed->hwINFO);
+			ed_p = &ed->hwNextED;
+		}
+		printf ("\n");
+	}
+}
+
+static void ohci_dump_intr_mask (char *label, __u32 mask)
+{
+	dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s",
+		label,
+		mask,
+		(mask & OHCI_INTR_MIE) ? " MIE" : "",
+		(mask & OHCI_INTR_OC) ? " OC" : "",
+		(mask & OHCI_INTR_RHSC) ? " RHSC" : "",
+		(mask & OHCI_INTR_FNO) ? " FNO" : "",
+		(mask & OHCI_INTR_UE) ? " UE" : "",
+		(mask & OHCI_INTR_RD) ? " RD" : "",
+		(mask & OHCI_INTR_SF) ? " SF" : "",
+		(mask & OHCI_INTR_WDH) ? " WDH" : "",
+		(mask & OHCI_INTR_SO) ? " SO" : ""
+		);
+}
+
+static void maybe_print_eds (char *label, __u32 value)
+{
+	ed_t *edp = (ed_t *)value;
+
+	if (value) {
+		dbg ("%s %08x", label, value);
+		dbg ("%08x", edp->hwINFO);
+		dbg ("%08x", edp->hwTailP);
+		dbg ("%08x", edp->hwHeadP);
+		dbg ("%08x", edp->hwNextED);
+	}
+}
+
+static char * hcfs2string (int state)
+{
+	switch (state) {
+		case OHCI_USB_RESET:	return "reset";
+		case OHCI_USB_RESUME:	return "resume";
+		case OHCI_USB_OPER:	return "operational";
+		case OHCI_USB_SUSPEND:	return "suspend";
+	}
+	return "?";
+}
+
+/* dump control and status registers */
+static void ohci_dump_status (ohci_t *controller)
+{
+	struct ohci_regs	*regs = controller->regs;
+	__u32			temp;
+
+	temp = readl (&regs->revision) & 0xff;
+	if (temp != 0x10)
+		dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f));
+
+	temp = readl (&regs->control);
+	dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp,
+		(temp & OHCI_CTRL_RWE) ? " RWE" : "",
+		(temp & OHCI_CTRL_RWC) ? " RWC" : "",
+		(temp & OHCI_CTRL_IR) ? " IR" : "",
+		hcfs2string (temp & OHCI_CTRL_HCFS),
+		(temp & OHCI_CTRL_BLE) ? " BLE" : "",
+		(temp & OHCI_CTRL_CLE) ? " CLE" : "",
+		(temp & OHCI_CTRL_IE) ? " IE" : "",
+		(temp & OHCI_CTRL_PLE) ? " PLE" : "",
+		temp & OHCI_CTRL_CBSR
+		);
+
+	temp = readl (&regs->cmdstatus);
+	dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp,
+		(temp & OHCI_SOC) >> 16,
+		(temp & OHCI_OCR) ? " OCR" : "",
+		(temp & OHCI_BLF) ? " BLF" : "",
+		(temp & OHCI_CLF) ? " CLF" : "",
+		(temp & OHCI_HCR) ? " HCR" : ""
+		);
+
+	ohci_dump_intr_mask ("intrstatus", readl (&regs->intrstatus));
+	ohci_dump_intr_mask ("intrenable", readl (&regs->intrenable));
+
+	maybe_print_eds ("ed_periodcurrent", readl (&regs->ed_periodcurrent));
+
+	maybe_print_eds ("ed_controlhead", readl (&regs->ed_controlhead));
+	maybe_print_eds ("ed_controlcurrent", readl (&regs->ed_controlcurrent));
+
+	maybe_print_eds ("ed_bulkhead", readl (&regs->ed_bulkhead));
+	maybe_print_eds ("ed_bulkcurrent", readl (&regs->ed_bulkcurrent));
+
+	maybe_print_eds ("donehead", readl (&regs->donehead));
+}
+
+static void ohci_dump_roothub (ohci_t *controller, int verbose)
+{
+	__u32			temp, ndp, i;
+
+	temp = roothub_a (controller);
+	ndp = (temp & RH_A_NDP);
+
+	if (verbose) {
+		dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
+			((temp & RH_A_POTPGT) >> 24) & 0xff,
+			(temp & RH_A_NOCP) ? " NOCP" : "",
+			(temp & RH_A_OCPM) ? " OCPM" : "",
+			(temp & RH_A_DT) ? " DT" : "",
+			(temp & RH_A_NPS) ? " NPS" : "",
+			(temp & RH_A_PSM) ? " PSM" : "",
+			ndp
+			);
+		temp = roothub_b (controller);
+		dbg ("roothub.b: %08x PPCM=%04x DR=%04x",
+			temp,
+			(temp & RH_B_PPCM) >> 16,
+			(temp & RH_B_DR)
+			);
+		temp = roothub_status (controller);
+		dbg ("roothub.status: %08x%s%s%s%s%s%s",
+			temp,
+			(temp & RH_HS_CRWE) ? " CRWE" : "",
+			(temp & RH_HS_OCIC) ? " OCIC" : "",
+			(temp & RH_HS_LPSC) ? " LPSC" : "",
+			(temp & RH_HS_DRWE) ? " DRWE" : "",
+			(temp & RH_HS_OCI) ? " OCI" : "",
+			(temp & RH_HS_LPS) ? " LPS" : ""
+			);
+	}
+
+	for (i = 0; i < ndp; i++) {
+		temp = roothub_portstatus (controller, i);
+		dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s",
+			i,
+			temp,
+			(temp & RH_PS_PRSC) ? " PRSC" : "",
+			(temp & RH_PS_OCIC) ? " OCIC" : "",
+			(temp & RH_PS_PSSC) ? " PSSC" : "",
+			(temp & RH_PS_PESC) ? " PESC" : "",
+			(temp & RH_PS_CSC) ? " CSC" : "",
+
+			(temp & RH_PS_LSDA) ? " LSDA" : "",
+			(temp & RH_PS_PPS) ? " PPS" : "",
+			(temp & RH_PS_PRS) ? " PRS" : "",
+			(temp & RH_PS_POCI) ? " POCI" : "",
+			(temp & RH_PS_PSS) ? " PSS" : "",
+
+			(temp & RH_PS_PES) ? " PES" : "",
+			(temp & RH_PS_CCS) ? " CCS" : ""
+			);
+	}
+}
+
+static void ohci_dump (ohci_t *controller, int verbose)
+{
+	dbg ("OHCI controller usb-%s state", controller->slot_name);
+
+	/* dumps some of the state we know about */
+	ohci_dump_status (controller);
+	if (verbose)
+		ep_print_int_eds (controller, "hcca");
+	dbg ("hcca frame #%04x", controller->hcca->frame_no);
+	ohci_dump_roothub (controller, 1);
+}
+
+
+#endif /* DEBUG */
+
+/*-------------------------------------------------------------------------*
+ * Interface functions (URB)
+ *-------------------------------------------------------------------------*/
+
+/* get a transfer request */
+
+int sohci_submit_job(struct usb_device *dev, unsigned long pipe, void *buffer,
+		int transfer_len, struct devrequest *setup, int interval)
+{
+	ohci_t *ohci;
+	ed_t * ed;
+	urb_priv_t *purb_priv;
+	int i, size = 0;
+
+	ohci = &gohci;
+
+	/* when controller's hung, permit only roothub cleanup attempts
+	 * such as powering down ports */
+	if (ohci->disabled) {
+		err("sohci_submit_job: EPIPE");
+		return -1;
+	}
+
+	/* every endpoint has a ed, locate and fill it */
+	if (!(ed = ep_add_ed (dev, pipe))) {
+		err("sohci_submit_job: ENOMEM");
+		return -1;
+	}
+
+	/* for the private part of the URB we need the number of TDs (size) */
+	switch (usb_pipetype (pipe)) {
+		case PIPE_BULK: /* one TD for every 4096 Byte */
+			size = (transfer_len - 1) / 4096 + 1;
+			break;
+		case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */
+			size = (transfer_len == 0)? 2:
+						(transfer_len - 1) / 4096 + 3;
+			break;
+	}
+
+	if (size >= (N_URB_TD - 1)) {
+		err("need %d TDs, only have %d", size, N_URB_TD);
+		return -1;
+	}
+	purb_priv = &urb_priv;
+	purb_priv->pipe = pipe;
+
+	/* fill the private part of the URB */
+	purb_priv->length = size;
+	purb_priv->ed = ed;
+	purb_priv->actual_length = 0;
+
+	/* allocate the TDs */
+	/* note that td[0] was allocated in ep_add_ed */
+	for (i = 0; i < size; i++) {
+		purb_priv->td[i] = td_alloc (dev);
+		if (!purb_priv->td[i]) {
+			purb_priv->length = i;
+			urb_free_priv (purb_priv);
+			err("sohci_submit_job: ENOMEM");
+			return -1;
+		}
+	}
+
+	if (ed->state == ED_NEW || (ed->state & ED_DEL)) {
+		urb_free_priv (purb_priv);
+		err("sohci_submit_job: EINVAL");
+		return -1;
+	}
+
+	/* link the ed into a chain if is not already */
+	if (ed->state != ED_OPER)
+		ep_link (ohci, ed);
+
+	/* fill the TDs and link it to the ed */
+	td_submit_job(dev, pipe, buffer, transfer_len, setup, purb_priv, interval);
+
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef DEBUG
+/* tell us the current USB frame number */
+
+static int sohci_get_current_frame_number (struct usb_device *usb_dev)
+{
+	ohci_t *ohci = &gohci;
+
+	return m16_swap (ohci->hcca->frame_no);
+}
+#endif
+
+/*-------------------------------------------------------------------------*
+ * ED handling functions
+ *-------------------------------------------------------------------------*/
+
+/* link an ed into one of the HC chains */
+
+static int ep_link (ohci_t *ohci, ed_t *edi)
+{
+	volatile ed_t *ed = edi;
+
+	ed->state = ED_OPER;
+
+	switch (ed->type) {
+	case PIPE_CONTROL:
+		ed->hwNextED = 0;
+		if (ohci->ed_controltail == NULL) {
+			writel ((long)ed, &ohci->regs->ed_controlhead);
+		} else {
+			ohci->ed_controltail->hwNextED = m32_swap (ed);
+		}
+		ed->ed_prev = ohci->ed_controltail;
+		if (!ohci->ed_controltail && !ohci->ed_rm_list[0] &&
+			!ohci->ed_rm_list[1] && !ohci->sleeping) {
+			ohci->hc_control |= OHCI_CTRL_CLE;
+			writel (ohci->hc_control, &ohci->regs->control);
+		}
+		ohci->ed_controltail = edi;
+		break;
+
+	case PIPE_BULK:
+		ed->hwNextED = 0;
+		if (ohci->ed_bulktail == NULL) {
+			writel ((long)ed, &ohci->regs->ed_bulkhead);
+		} else {
+			ohci->ed_bulktail->hwNextED = m32_swap (ed);
+		}
+		ed->ed_prev = ohci->ed_bulktail;
+		if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] &&
+			!ohci->ed_rm_list[1] && !ohci->sleeping) {
+			ohci->hc_control |= OHCI_CTRL_BLE;
+			writel (ohci->hc_control, &ohci->regs->control);
+		}
+		ohci->ed_bulktail = edi;
+		break;
+	}
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* unlink an ed from one of the HC chains.
+ * just the link to the ed is unlinked.
+ * the link from the ed still points to another operational ed or 0
+ * so the HC can eventually finish the processing of the unlinked ed */
+
+static int ep_unlink (ohci_t *ohci, ed_t *ed)
+{
+	ed->hwINFO |= m32_swap (OHCI_ED_SKIP);
+
+	switch (ed->type) {
+	case PIPE_CONTROL:
+		if (ed->ed_prev == NULL) {
+			if (!ed->hwNextED) {
+				ohci->hc_control &= ~OHCI_CTRL_CLE;
+				writel (ohci->hc_control, &ohci->regs->control);
+			}
+			writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_controlhead);
+		} else {
+			ed->ed_prev->hwNextED = ed->hwNextED;
+		}
+		if (ohci->ed_controltail == ed) {
+			ohci->ed_controltail = ed->ed_prev;
+		} else {
+			((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
+		}
+		break;
+
+	case PIPE_BULK:
+		if (ed->ed_prev == NULL) {
+			if (!ed->hwNextED) {
+				ohci->hc_control &= ~OHCI_CTRL_BLE;
+				writel (ohci->hc_control, &ohci->regs->control);
+			}
+			writel (m32_swap (*((__u32 *)&ed->hwNextED)), &ohci->regs->ed_bulkhead);
+		} else {
+			ed->ed_prev->hwNextED = ed->hwNextED;
+		}
+		if (ohci->ed_bulktail == ed) {
+			ohci->ed_bulktail = ed->ed_prev;
+		} else {
+			((ed_t *)m32_swap (*((__u32 *)&ed->hwNextED)))->ed_prev = ed->ed_prev;
+		}
+		break;
+	}
+	ed->state = ED_UNLINK;
+	return 0;
+}
+
+
+/*-------------------------------------------------------------------------*/
+
+/* add/reinit an endpoint; this should be done once at the usb_set_configuration command,
+ * but the USB stack is a little bit stateless	so we do it at every transaction
+ * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK
+ * in all other cases the state is left unchanged
+ * the ed info fields are setted anyway even though most of them should not change */
+
+static ed_t * ep_add_ed (struct usb_device *usb_dev, unsigned long pipe)
+{
+	td_t *td;
+	ed_t *ed_ret;
+	volatile ed_t *ed;
+
+	ed = ed_ret = &ohci_dev.ed[(usb_pipeendpoint (pipe) << 1) |
+			(usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))];
+
+	if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) {
+		err("ep_add_ed: pending delete");
+		/* pending delete request */
+		return NULL;
+	}
+
+	if (ed->state == ED_NEW) {
+		ed->hwINFO = m32_swap (OHCI_ED_SKIP); /* skip ed */
+		/* dummy td; end of td list for ed */
+		td = td_alloc (usb_dev);
+		ed->hwTailP = m32_swap (td);
+		ed->hwHeadP = ed->hwTailP;
+		ed->state = ED_UNLINK;
+		ed->type = usb_pipetype (pipe);
+		ohci_dev.ed_cnt++;
+	}
+
+	ed->hwINFO = m32_swap (usb_pipedevice (pipe)
+			| usb_pipeendpoint (pipe) << 7
+			| (usb_pipeisoc (pipe)? 0x8000: 0)
+			| (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000))
+			| usb_pipeslow (pipe) << 13
+			| usb_maxpacket (usb_dev, pipe) << 16);
+
+	return ed_ret;
+}
+
+/*-------------------------------------------------------------------------*
+ * TD handling functions
+ *-------------------------------------------------------------------------*/
+
+/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
+
+static void td_fill (ohci_t *ohci, unsigned int info,
+	void *data, int len,
+	struct usb_device *dev, int index, urb_priv_t *urb_priv)
+{
+	volatile td_t  *td, *td_pt;
+#ifdef OHCI_FILL_TRACE
+	int i;
+#endif
+
+	if (index > urb_priv->length) {
+		err("index > length");
+		return;
+	}
+	/* use this td as the next dummy */
+	td_pt = urb_priv->td [index];
+	td_pt->hwNextTD = 0;
+
+	/* fill the old dummy TD */
+	td = urb_priv->td [index] = (td_t *)(m32_swap (urb_priv->ed->hwTailP) & ~0xf);
+
+	td->ed = urb_priv->ed;
+	td->next_dl_td = NULL;
+	td->index = index;
+	td->data = (__u32)data;
+#ifdef OHCI_FILL_TRACE
+	if (1 || (usb_pipebulk(urb_priv->pipe) &&
+				usb_pipeout(urb_priv->pipe))) {
+		for (i = 0; i < len; i++)
+		printf("td->data[%d] %#2x\n",i, ((unsigned char *)(td->data+0x80000000))[i]);
+	}
+#endif
+	if (!len)
+		data = 0;
+
+	td->hwINFO = m32_swap (info);
+	td->hwCBP = m32_swap (data);
+	if (data)
+		td->hwBE = m32_swap (data + len - 1);
+	else
+		td->hwBE = 0;
+	td->hwNextTD = m32_swap (td_pt);
+	td->hwPSW [0] = m16_swap (((__u32)data & 0x0FFF) | 0xE000);
+
+	/* append to queue */
+	td->ed->hwTailP = td->hwNextTD;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* prepare all TDs of a transfer */
+
+#define kseg_to_phys(x)	  ((void *)((__u32)(x) - 0x80000000))
+
+static void td_submit_job (struct usb_device *dev, unsigned long pipe, void *buffer,
+	int transfer_len, struct devrequest *setup, urb_priv_t *urb, int interval)
+{
+	ohci_t *ohci = &gohci;
+	int data_len = transfer_len;
+	void *data;
+	int cnt = 0;
+	__u32 info = 0;
+	unsigned int toggle = 0;
+
+	/* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */
+	if(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe))) {
+		toggle = TD_T_TOGGLE;
+	} else {
+		toggle = TD_T_DATA0;
+		usb_settoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe), 1);
+	}
+	urb->td_cnt = 0;
+	if (data_len)
+		data = kseg_to_phys(buffer);
+	else
+		data = 0;
+
+	switch (usb_pipetype (pipe)) {
+	case PIPE_BULK:
+		info = usb_pipeout (pipe)?
+			TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ;
+		while(data_len > 4096) {
+			td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, dev, cnt, urb);
+			data += 4096; data_len -= 4096; cnt++;
+		}
+		info = usb_pipeout (pipe)?
+			TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ;
+		td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, dev, cnt, urb);
+		cnt++;
+
+		if (!ohci->sleeping)
+			writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */
+		break;
+
+	case PIPE_CONTROL:
+		info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
+		td_fill (ohci, info, kseg_to_phys(setup), 8, dev, cnt++, urb);
+		if (data_len > 0) {
+			info = usb_pipeout (pipe)?
+				TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1;
+			/* NOTE:  mishandles transfers >8K, some >4K */
+			td_fill (ohci, info, data, data_len, dev, cnt++, urb);
+		}
+		info = usb_pipeout (pipe)?
+			TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1;
+		td_fill (ohci, info, data, 0, dev, cnt++, urb);
+		if (!ohci->sleeping)
+			writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */
+		break;
+	}
+	if (urb->length != cnt)
+		dbg("TD LENGTH %d != CNT %d", urb->length, cnt);
+}
+
+/*-------------------------------------------------------------------------*
+ * Done List handling functions
+ *-------------------------------------------------------------------------*/
+
+
+/* calculate the transfer length and update the urb */
+
+static void dl_transfer_length(td_t * td)
+{
+	__u32 tdINFO, tdBE, tdCBP;
+	urb_priv_t *lurb_priv = &urb_priv;
+
+	tdINFO = m32_swap (td->hwINFO);
+	tdBE   = m32_swap (td->hwBE);
+	tdCBP  = m32_swap (td->hwCBP);
+
+
+	if (!(usb_pipecontrol(lurb_priv->pipe) &&
+	    ((td->index == 0) || (td->index == lurb_priv->length - 1)))) {
+		if (tdBE != 0) {
+			if (td->hwCBP == 0)
+				lurb_priv->actual_length += tdBE - td->data + 1;
+			else
+				lurb_priv->actual_length += tdCBP - td->data;
+		}
+	}
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* replies to the request have to be on a FIFO basis so
+ * we reverse the reversed done-list */
+
+static td_t * dl_reverse_done_list (ohci_t *ohci)
+{
+	__u32 td_list_hc;
+	td_t *td_rev = NULL;
+	td_t *td_list = NULL;
+	urb_priv_t *lurb_priv = NULL;
+
+	td_list_hc = m32_swap (ohci->hcca->done_head) & 0xfffffff0;
+	ohci->hcca->done_head = 0;
+
+	while (td_list_hc) {
+		td_list = (td_t *)td_list_hc;
+
+		if (TD_CC_GET (m32_swap (td_list->hwINFO))) {
+			lurb_priv = &urb_priv;
+			dbg(" USB-error/status: %x : %p",
+					TD_CC_GET (m32_swap (td_list->hwINFO)), td_list);
+			if (td_list->ed->hwHeadP & m32_swap (0x1)) {
+				if (lurb_priv && ((td_list->index + 1) < lurb_priv->length)) {
+					td_list->ed->hwHeadP =
+						(lurb_priv->td[lurb_priv->length - 1]->hwNextTD & m32_swap (0xfffffff0)) |
+									(td_list->ed->hwHeadP & m32_swap (0x2));
+					lurb_priv->td_cnt += lurb_priv->length - td_list->index - 1;
+				} else
+					td_list->ed->hwHeadP &= m32_swap (0xfffffff2);
+			}
+		}
+
+		td_list->next_dl_td = td_rev;
+		td_rev = td_list;
+		td_list_hc = m32_swap (td_list->hwNextTD) & 0xfffffff0;
+	}
+	return td_list;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* td done list */
+static int dl_done_list (ohci_t *ohci, td_t *td_list)
+{
+	td_t *td_list_next = NULL;
+	ed_t *ed;
+	int cc = 0;
+	int stat = 0;
+	/* urb_t *urb; */
+	urb_priv_t *lurb_priv;
+	__u32 tdINFO, edHeadP, edTailP;
+
+	while (td_list) {
+		td_list_next = td_list->next_dl_td;
+
+		lurb_priv = &urb_priv;
+		tdINFO = m32_swap (td_list->hwINFO);
+
+		ed = td_list->ed;
+
+		dl_transfer_length(td_list);
+
+		/* error code of transfer */
+		cc = TD_CC_GET (tdINFO);
+		if (cc != 0) {
+			dbg("ConditionCode %#x", cc);
+			stat = cc_to_error[cc];
+		}
+
+		if (ed->state != ED_NEW) {
+			edHeadP = m32_swap (ed->hwHeadP) & 0xfffffff0;
+			edTailP = m32_swap (ed->hwTailP);
+
+			/* unlink eds if they are not busy */
+			if ((edHeadP == edTailP) && (ed->state == ED_OPER))
+				ep_unlink (ohci, ed);
+		}
+
+		td_list = td_list_next;
+	}
+	return stat;
+}
+
+/*-------------------------------------------------------------------------*
+ * Virtual Root Hub
+ *-------------------------------------------------------------------------*/
+
+/* Device descriptor */
+static __u8 root_hub_dev_des[] =
+{
+	0x12,	    /*	__u8  bLength; */
+	0x01,	    /*	__u8  bDescriptorType; Device */
+	0x10,	    /*	__u16 bcdUSB; v1.1 */
+	0x01,
+	0x09,	    /*	__u8  bDeviceClass; HUB_CLASSCODE */
+	0x00,	    /*	__u8  bDeviceSubClass; */
+	0x00,	    /*	__u8  bDeviceProtocol; */
+	0x08,	    /*	__u8  bMaxPacketSize0; 8 Bytes */
+	0x00,	    /*	__u16 idVendor; */
+	0x00,
+	0x00,	    /*	__u16 idProduct; */
+	0x00,
+	0x00,	    /*	__u16 bcdDevice; */
+	0x00,
+	0x00,	    /*	__u8  iManufacturer; */
+	0x01,	    /*	__u8  iProduct; */
+	0x00,	    /*	__u8  iSerialNumber; */
+	0x01	    /*	__u8  bNumConfigurations; */
+};
+
+
+/* Configuration descriptor */
+static __u8 root_hub_config_des[] =
+{
+	0x09,	    /*	__u8  bLength; */
+	0x02,	    /*	__u8  bDescriptorType; Configuration */
+	0x19,	    /*	__u16 wTotalLength; */
+	0x00,
+	0x01,	    /*	__u8  bNumInterfaces; */
+	0x01,	    /*	__u8  bConfigurationValue; */
+	0x00,	    /*	__u8  iConfiguration; */
+	0x40,	    /*	__u8  bmAttributes;
+		 Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
+	0x00,	    /*	__u8  MaxPower; */
+
+	/* interface */
+	0x09,	    /*	__u8  if_bLength; */
+	0x04,	    /*	__u8  if_bDescriptorType; Interface */
+	0x00,	    /*	__u8  if_bInterfaceNumber; */
+	0x00,	    /*	__u8  if_bAlternateSetting; */
+	0x01,	    /*	__u8  if_bNumEndpoints; */
+	0x09,	    /*	__u8  if_bInterfaceClass; HUB_CLASSCODE */
+	0x00,	    /*	__u8  if_bInterfaceSubClass; */
+	0x00,	    /*	__u8  if_bInterfaceProtocol; */
+	0x00,	    /*	__u8  if_iInterface; */
+
+	/* endpoint */
+	0x07,	    /*	__u8  ep_bLength; */
+	0x05,	    /*	__u8  ep_bDescriptorType; Endpoint */
+	0x81,	    /*	__u8  ep_bEndpointAddress; IN Endpoint 1 */
+	0x03,	    /*	__u8  ep_bmAttributes; Interrupt */
+	0x02,	    /*	__u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
+	0x00,
+	0xff	    /*	__u8  ep_bInterval; 255 ms */
+};
+
+static unsigned char root_hub_str_index0[] =
+{
+	0x04,			/*  __u8  bLength; */
+	0x03,			/*  __u8  bDescriptorType; String-descriptor */
+	0x09,			/*  __u8  lang ID */
+	0x04,			/*  __u8  lang ID */
+};
+
+static unsigned char root_hub_str_index1[] =
+{
+	28,			/*  __u8  bLength; */
+	0x03,			/*  __u8  bDescriptorType; String-descriptor */
+	'O',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'H',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'C',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'I',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	' ',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'R',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'o',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'o',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	't',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	' ',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'H',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'u',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+	'b',			/*  __u8  Unicode */
+	0,				/*  __u8  Unicode */
+};
+
+/* Hub class-specific descriptor is constructed dynamically */
+
+
+/*-------------------------------------------------------------------------*/
+
+#define OK(x)			len = (x); break
+#ifdef DEBUG
+#define WR_RH_STAT(x)		{info("WR:status %#8x", (x));writel((x), &gohci.regs->roothub.status);}
+#define WR_RH_PORTSTAT(x)	{info("WR:portstatus[%d] %#8x", wIndex-1, (x));writel((x), &gohci.regs->roothub.portstatus[wIndex-1]);}
+#else
+#define WR_RH_STAT(x)		writel((x), &gohci.regs->roothub.status)
+#define WR_RH_PORTSTAT(x)	writel((x), &gohci.regs->roothub.portstatus[wIndex-1])
+#endif
+#define RD_RH_STAT		roothub_status(&gohci)
+#define RD_RH_PORTSTAT		roothub_portstatus(&gohci,wIndex-1)
+
+/* request to virtual root hub */
+
+int rh_check_port_status(ohci_t *controller)
+{
+	__u32 temp, ndp, i;
+	int res;
+
+	res = -1;
+	temp = roothub_a (controller);
+	ndp = (temp & RH_A_NDP);
+	for (i = 0; i < ndp; i++) {
+		temp = roothub_portstatus (controller, i);
+		/* check for a device disconnect */
+		if (((temp & (RH_PS_PESC | RH_PS_CSC)) ==
+			(RH_PS_PESC | RH_PS_CSC)) &&
+			((temp & RH_PS_CCS) == 0)) {
+			res = i;
+			break;
+		}
+	}
+	return res;
+}
+
+static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
+		void *buffer, int transfer_len, struct devrequest *cmd)
+{
+	void * data = buffer;
+	int leni = transfer_len;
+	int len = 0;
+	int stat = 0;
+	__u32 datab[4];
+	__u8 *data_buf = (__u8 *)datab;
+	__u16 bmRType_bReq;
+	__u16 wValue;
+	__u16 wIndex;
+	__u16 wLength;
+
+#ifdef DEBUG
+urb_priv.actual_length = 0;
+pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe));
+#else
+	wait_ms(1);
+#endif
+	if (usb_pipeint(pipe)) {
+		info("Root-Hub submit IRQ: NOT implemented");
+		return 0;
+	}
+
+	bmRType_bReq  = cmd->requesttype | (cmd->request << 8);
+	wValue	      = m16_swap (cmd->value);
+	wIndex	      = m16_swap (cmd->index);
+	wLength	      = m16_swap (cmd->length);
+
+	info("Root-Hub: adr: %2x cmd(%1x): %08x %04x %04x %04x",
+		dev->devnum, 8, bmRType_bReq, wValue, wIndex, wLength);
+
+	switch (bmRType_bReq) {
+	/* Request Destination:
+	   without flags: Device,
+	   RH_INTERFACE: interface,
+	   RH_ENDPOINT: endpoint,
+	   RH_CLASS means HUB here,
+	   RH_OTHER | RH_CLASS	almost ever means HUB_PORT here
+	*/
+
+	case RH_GET_STATUS:
+			*(__u16 *) data_buf = m16_swap (1); OK (2);
+	case RH_GET_STATUS | RH_INTERFACE:
+			*(__u16 *) data_buf = m16_swap (0); OK (2);
+	case RH_GET_STATUS | RH_ENDPOINT:
+			*(__u16 *) data_buf = m16_swap (0); OK (2);
+	case RH_GET_STATUS | RH_CLASS:
+			*(__u32 *) data_buf = m32_swap (
+				RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
+			OK (4);
+	case RH_GET_STATUS | RH_OTHER | RH_CLASS:
+			*(__u32 *) data_buf = m32_swap (RD_RH_PORTSTAT); OK (4);
+
+	case RH_CLEAR_FEATURE | RH_ENDPOINT:
+		switch (wValue) {
+			case (RH_ENDPOINT_STALL): OK (0);
+		}
+		break;
+
+	case RH_CLEAR_FEATURE | RH_CLASS:
+		switch (wValue) {
+			case RH_C_HUB_LOCAL_POWER:
+				OK(0);
+			case (RH_C_HUB_OVER_CURRENT):
+					WR_RH_STAT(RH_HS_OCIC); OK (0);
+		}
+		break;
+
+	case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
+		switch (wValue) {
+			case (RH_PORT_ENABLE):
+					WR_RH_PORTSTAT (RH_PS_CCS ); OK (0);
+			case (RH_PORT_SUSPEND):
+					WR_RH_PORTSTAT (RH_PS_POCI); OK (0);
+			case (RH_PORT_POWER):
+					WR_RH_PORTSTAT (RH_PS_LSDA); OK (0);
+			case (RH_C_PORT_CONNECTION):
+					WR_RH_PORTSTAT (RH_PS_CSC ); OK (0);
+			case (RH_C_PORT_ENABLE):
+					WR_RH_PORTSTAT (RH_PS_PESC); OK (0);
+			case (RH_C_PORT_SUSPEND):
+					WR_RH_PORTSTAT (RH_PS_PSSC); OK (0);
+			case (RH_C_PORT_OVER_CURRENT):
+					WR_RH_PORTSTAT (RH_PS_OCIC); OK (0);
+			case (RH_C_PORT_RESET):
+					WR_RH_PORTSTAT (RH_PS_PRSC); OK (0);
+		}
+		break;
+
+	case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
+		switch (wValue) {
+			case (RH_PORT_SUSPEND):
+					WR_RH_PORTSTAT (RH_PS_PSS ); OK (0);
+			case (RH_PORT_RESET): /* BUG IN HUP CODE *********/
+					if (RD_RH_PORTSTAT & RH_PS_CCS)
+					    WR_RH_PORTSTAT (RH_PS_PRS);
+					OK (0);
+			case (RH_PORT_POWER):
+					WR_RH_PORTSTAT (RH_PS_PPS ); OK (0);
+			case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
+					if (RD_RH_PORTSTAT & RH_PS_CCS)
+					    WR_RH_PORTSTAT (RH_PS_PES );
+					OK (0);
+		}
+		break;
+
+	case RH_SET_ADDRESS: gohci.rh.devnum = wValue; OK(0);
+
+	case RH_GET_DESCRIPTOR:
+		switch ((wValue & 0xff00) >> 8) {
+			case (0x01): /* device descriptor */
+				len = min_t(unsigned int,
+					  leni,
+					  min_t(unsigned int,
+					      sizeof (root_hub_dev_des),
+					      wLength));
+				data_buf = root_hub_dev_des; OK(len);
+			case (0x02): /* configuration descriptor */
+				len = min_t(unsigned int,
+					  leni,
+					  min_t(unsigned int,
+					      sizeof (root_hub_config_des),
+					      wLength));
+				data_buf = root_hub_config_des; OK(len);
+			case (0x03): /* string descriptors */
+				if(wValue==0x0300) {
+					len = min_t(unsigned int,
+						  leni,
+						  min_t(unsigned int,
+						      sizeof (root_hub_str_index0),
+						      wLength));
+					data_buf = root_hub_str_index0;
+					OK(len);
+				}
+				if(wValue==0x0301) {
+					len = min_t(unsigned int,
+						  leni,
+						  min_t(unsigned int,
+						      sizeof (root_hub_str_index1),
+						      wLength));
+					data_buf = root_hub_str_index1;
+					OK(len);
+			}
+			default:
+				stat = USB_ST_STALLED;
+		}
+		break;
+
+	case RH_GET_DESCRIPTOR | RH_CLASS:
+	    {
+		    __u32 temp = roothub_a (&gohci);
+
+		    data_buf [0] = 9;		/* min length; */
+		    data_buf [1] = 0x29;
+		    data_buf [2] = temp & RH_A_NDP;
+		    data_buf [3] = 0;
+		    if (temp & RH_A_PSM)	/* per-port power switching? */
+			data_buf [3] |= 0x1;
+		    if (temp & RH_A_NOCP)	/* no overcurrent reporting? */
+			data_buf [3] |= 0x10;
+		    else if (temp & RH_A_OCPM)	/* per-port overcurrent reporting? */
+			data_buf [3] |= 0x8;
+
+		    /* corresponds to data_buf[4-7] */
+		    datab [1] = 0;
+		    data_buf [5] = (temp & RH_A_POTPGT) >> 24;
+		    temp = roothub_b (&gohci);
+		    data_buf [7] = temp & RH_B_DR;
+		    if (data_buf [2] < 7) {
+			data_buf [8] = 0xff;
+		    } else {
+			data_buf [0] += 2;
+			data_buf [8] = (temp & RH_B_DR) >> 8;
+			data_buf [10] = data_buf [9] = 0xff;
+		    }
+
+		    len = min_t(unsigned int, leni,
+			      min_t(unsigned int, data_buf [0], wLength));
+		    OK (len);
+		}
+
+	case RH_GET_CONFIGURATION:	*(__u8 *) data_buf = 0x01; OK (1);
+
+	case RH_SET_CONFIGURATION:	WR_RH_STAT (0x10000); OK (0);
+
+	default:
+		dbg ("unsupported root hub command");
+		stat = USB_ST_STALLED;
+	}
+
+#ifdef	DEBUG
+	ohci_dump_roothub (&gohci, 1);
+#else
+	wait_ms(1);
+#endif
+
+	len = min_t(int, len, leni);
+	if (data != data_buf)
+	    memcpy (data, data_buf, len);
+	dev->act_len = len;
+	dev->status = stat;
+
+#ifdef DEBUG
+	if (transfer_len)
+		urb_priv.actual_length = transfer_len;
+	pkt_print(dev, pipe, buffer, transfer_len, cmd, "RET(rh)", 0/*usb_pipein(pipe)*/);
+#else
+	wait_ms(1);
+#endif
+
+	return stat;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* common code for handling submit messages - used for all but root hub */
+/* accesses. */
+int submit_common_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+		int transfer_len, struct devrequest *setup, int interval)
+{
+	int stat = 0;
+	int maxsize = usb_maxpacket(dev, pipe);
+	int timeout;
+
+	/* device pulled? Shortcut the action. */
+	if (devgone == dev) {
+		dev->status = USB_ST_CRC_ERR;
+		return 0;
+	}
+
+#ifdef DEBUG
+	urb_priv.actual_length = 0;
+	pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe));
+#else
+	wait_ms(1);
+#endif
+	if (!maxsize) {
+		err("submit_common_message: pipesize for pipe %lx is zero",
+			pipe);
+		return -1;
+	}
+
+	if (sohci_submit_job(dev, pipe, buffer, transfer_len, setup, interval) < 0) {
+		err("sohci_submit_job failed");
+		return -1;
+	}
+
+	wait_ms(10);
+	/* ohci_dump_status(&gohci); */
+
+	/* allow more time for a BULK device to react - some are slow */
+#define BULK_TO	 5000	/* timeout in milliseconds */
+	if (usb_pipebulk(pipe))
+		timeout = BULK_TO;
+	else
+		timeout = 100;
+
+	timeout *= 4;
+	/* wait for it to complete */
+	for (;;) {
+		/* check whether the controller is done */
+		stat = hc_interrupt();
+		if (stat < 0) {
+			stat = USB_ST_CRC_ERR;
+			break;
+		}
+		if (stat >= 0 && stat != 0xff) {
+			/* 0xff is returned for an SF-interrupt */
+			break;
+		}
+		if (--timeout) {
+			udelay(250); /* wait_ms(1); */
+		} else {
+			err("CTL:TIMEOUT ");
+			stat = USB_ST_CRC_ERR;
+			break;
+		}
+	}
+	/* we got an Root Hub Status Change interrupt */
+	if (got_rhsc) {
+#ifdef DEBUG
+		ohci_dump_roothub (&gohci, 1);
+#endif
+		got_rhsc = 0;
+		/* abuse timeout */
+		timeout = rh_check_port_status(&gohci);
+		if (timeout >= 0) {
+#if 0 /* this does nothing useful, but leave it here in case that changes */
+			/* the called routine adds 1 to the passed value */
+			usb_hub_port_connect_change(gohci.rh.dev, timeout - 1);
+#endif
+			/*
+			 * XXX
+			 * This is potentially dangerous because it assumes
+			 * that only one device is ever plugged in!
+			 */
+			devgone = dev;
+		}
+	}
+
+	dev->status = stat;
+	dev->act_len = transfer_len;
+
+#ifdef DEBUG
+	pkt_print(dev, pipe, buffer, transfer_len, setup, "RET(ctlr)", usb_pipein(pipe));
+#else
+	wait_ms(1);
+#endif
+
+	/* free TDs in urb_priv */
+	urb_free_priv (&urb_priv);
+	return 0;
+}
+
+/* submit routines called from usb.c */
+int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+		int transfer_len)
+{
+	info("submit_bulk_msg");
+	return submit_common_msg(dev, pipe, buffer, transfer_len, NULL, 0);
+}
+
+int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+		int transfer_len, struct devrequest *setup)
+{
+	int maxsize = usb_maxpacket(dev, pipe);
+
+	info("submit_control_msg");
+#ifdef DEBUG
+	urb_priv.actual_length = 0;
+	pkt_print(dev, pipe, buffer, transfer_len, setup, "SUB", usb_pipein(pipe));
+#else
+	wait_ms(1);
+#endif
+	if (!maxsize) {
+		err("submit_control_message: pipesize for pipe %lx is zero",
+			pipe);
+		return -1;
+	}
+	if (((pipe >> 8) & 0x7f) == gohci.rh.devnum) {
+		gohci.rh.dev = dev;
+		/* root hub - redirect */
+		return ohci_submit_rh_msg(dev, pipe, buffer, transfer_len,
+			setup);
+	}
+
+	return submit_common_msg(dev, pipe, buffer, transfer_len, setup, 0);
+}
+
+int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
+		int transfer_len, int interval)
+{
+	info("submit_int_msg");
+	return -1;
+}
+
+/*-------------------------------------------------------------------------*
+ * HC functions
+ *-------------------------------------------------------------------------*/
+
+/* reset the HC and BUS */
+
+static int hc_reset (ohci_t *ohci)
+{
+	int timeout = 30;
+	int smm_timeout = 50; /* 0,5 sec */
+
+	if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */
+		writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */
+		info("USB HC TakeOver from SMM");
+		while (readl (&ohci->regs->control) & OHCI_CTRL_IR) {
+			wait_ms (10);
+			if (--smm_timeout == 0) {
+				err("USB HC TakeOver failed!");
+				return -1;
+			}
+		}
+	}
+
+	/* Disable HC interrupts */
+	writel (OHCI_INTR_MIE, &ohci->regs->intrdisable);
+
+	dbg("USB HC reset_hc usb-%s: ctrl = 0x%X ;",
+		ohci->slot_name,
+		readl (&ohci->regs->control));
+
+	/* Reset USB (needed by some controllers) */
+	writel (0, &ohci->regs->control);
+
+	/* HC Reset requires max 10 us delay */
+	writel (OHCI_HCR,  &ohci->regs->cmdstatus);
+	while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) {
+		if (--timeout == 0) {
+			err("USB HC reset timed out!");
+			return -1;
+		}
+		udelay (1);
+	}
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* Start an OHCI controller, set the BUS operational
+ * enable interrupts
+ * connect the virtual root hub */
+
+static int hc_start (ohci_t * ohci)
+{
+	__u32 mask;
+	unsigned int fminterval;
+
+	ohci->disabled = 1;
+
+	/* Tell the controller where the control and bulk lists are
+	 * The lists are empty now. */
+
+	writel (0, &ohci->regs->ed_controlhead);
+	writel (0, &ohci->regs->ed_bulkhead);
+
+	writel ((__u32)ohci->hcca, &ohci->regs->hcca); /* a reset clears this */
+
+	fminterval = 0x2edf;
+	writel ((fminterval * 9) / 10, &ohci->regs->periodicstart);
+	fminterval |= ((((fminterval - 210) * 6) / 7) << 16);
+	writel (fminterval, &ohci->regs->fminterval);
+	writel (0x628, &ohci->regs->lsthresh);
+
+	/* start controller operations */
+	ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER;
+	ohci->disabled = 0;
+	writel (ohci->hc_control, &ohci->regs->control);
+
+	/* disable all interrupts */
+	mask = (OHCI_INTR_SO | OHCI_INTR_WDH | OHCI_INTR_SF | OHCI_INTR_RD |
+			OHCI_INTR_UE | OHCI_INTR_FNO | OHCI_INTR_RHSC |
+			OHCI_INTR_OC | OHCI_INTR_MIE);
+	writel (mask, &ohci->regs->intrdisable);
+	/* clear all interrupts */
+	mask &= ~OHCI_INTR_MIE;
+	writel (mask, &ohci->regs->intrstatus);
+	/* Choose the interrupts we care about now  - but w/o MIE */
+	mask = OHCI_INTR_RHSC | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
+	writel (mask, &ohci->regs->intrenable);
+
+#ifdef	OHCI_USE_NPS
+	/* required for AMD-756 and some Mac platforms */
+	writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM,
+		&ohci->regs->roothub.a);
+	writel (RH_HS_LPSC, &ohci->regs->roothub.status);
+#endif	/* OHCI_USE_NPS */
+
+#define mdelay(n) ({unsigned long msec=(n); while (msec--) udelay(1000);})
+	/* POTPGT delay is bits 24-31, in 2 ms units. */
+	mdelay ((roothub_a (ohci) >> 23) & 0x1fe);
+
+	/* connect the virtual root hub */
+	ohci->rh.devnum = 0;
+
+	return 0;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* an interrupt happens */
+
+static int
+hc_interrupt (void)
+{
+	ohci_t *ohci = &gohci;
+	struct ohci_regs *regs = ohci->regs;
+	int ints;
+	int stat = -1;
+
+	if ((ohci->hcca->done_head != 0) && !(m32_swap (ohci->hcca->done_head) & 0x01)) {
+		ints =	OHCI_INTR_WDH;
+	} else {
+		ints = readl (&regs->intrstatus);
+	}
+
+	/* dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); */
+
+	if (ints & OHCI_INTR_RHSC) {
+		got_rhsc = 1;
+	}
+
+	if (ints & OHCI_INTR_UE) {
+		ohci->disabled++;
+		err ("OHCI Unrecoverable Error, controller usb-%s disabled",
+			ohci->slot_name);
+		/* e.g. due to PCI Master/Target Abort */
+
+#ifdef	DEBUG
+		ohci_dump (ohci, 1);
+#else
+	wait_ms(1);
+#endif
+		/* FIXME: be optimistic, hope that bug won't repeat often. */
+		/* Make some non-interrupt context restart the controller. */
+		/* Count and limit the retries though; either hardware or */
+		/* software errors can go forever... */
+		hc_reset (ohci);
+		return -1;
+	}
+
+	if (ints & OHCI_INTR_WDH) {
+		wait_ms(1);
+		writel (OHCI_INTR_WDH, &regs->intrdisable);
+		stat = dl_done_list (&gohci, dl_reverse_done_list (&gohci));
+		writel (OHCI_INTR_WDH, &regs->intrenable);
+	}
+
+	if (ints & OHCI_INTR_SO) {
+		dbg("USB Schedule overrun\n");
+		writel (OHCI_INTR_SO, &regs->intrenable);
+		stat = -1;
+	}
+
+	/* FIXME:  this assumes SOF (1/ms) interrupts don't get lost... */
+	if (ints & OHCI_INTR_SF) {
+		unsigned int frame = m16_swap (ohci->hcca->frame_no) & 1;
+		wait_ms(1);
+		writel (OHCI_INTR_SF, &regs->intrdisable);
+		if (ohci->ed_rm_list[frame] != NULL)
+			writel (OHCI_INTR_SF, &regs->intrenable);
+		stat = 0xff;
+	}
+
+	writel (ints, &regs->intrstatus);
+	return stat;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*-------------------------------------------------------------------------*/
+
+/* De-allocate all resources.. */
+
+static void hc_release_ohci (ohci_t *ohci)
+{
+	dbg ("USB HC release ohci usb-%s", ohci->slot_name);
+
+	if (!ohci->disabled)
+		hc_reset (ohci);
+}
+
+/*-------------------------------------------------------------------------*/
+
+#define __read_32bit_c0_register(source, sel)				\
+({ int __res;								\
+	if (sel == 0)							\
+		__asm__ __volatile__(					\
+			"mfc0\t%0, " #source "\n\t"			\
+			: "=r" (__res));				\
+	else								\
+		__asm__ __volatile__(					\
+			".set\tmips32\n\t"				\
+			"mfc0\t%0, " #source ", " #sel "\n\t"		\
+			".set\tmips0\n\t"				\
+			: "=r" (__res));				\
+	__res;								\
+})
+
+#define read_c0_prid()		__read_32bit_c0_register($15, 0)
+
+/*
+ * low level initalisation routine, called from usb.c
+ */
+static char ohci_inited = 0;
+
+int usb_lowlevel_init(void)
+{
+	u32 pin_func;
+	u32 sys_freqctrl, sys_clksrc;
+	u32 prid = read_c0_prid();
+
+	dbg("in usb_lowlevel_init\n");
+
+	/* 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 &= ~0x00007FE0;
+	au_writel(sys_clksrc, SYS_CLKSRC);
+
+	sys_freqctrl = au_readl(SYS_FREQCTRL0);
+	sys_freqctrl &= ~0xFFF00000;
+
+	sys_clksrc = au_readl(SYS_CLKSRC);
+	sys_clksrc &= ~0x00007FE0;
+
+	switch (prid & 0x000000FF) {
+	case 0x00: /* DA */
+	case 0x01: /* HA */
+	case 0x02: /* HB */
+		/* CPU core freq to 48MHz to slow it way down... */
+		au_writel(4, SYS_CPUPLL);
+
+		/*
+		 * Setup 48MHz FREQ2 from CPUPLL for USB Host
+		 */
+		/* FRDIV2=3 -> div by 8 of 384MHz -> 48MHz */
+		sys_freqctrl |= ((3<<22) | (1<<21) | (0<<20));
+		au_writel(sys_freqctrl, SYS_FREQCTRL0);
+
+		/* CPU core freq to 384MHz */
+		au_writel(0x20, SYS_CPUPLL);
+
+		printf("Au1000: 48MHz OHCI workaround enabled\n");
+		break;
+
+	default:  /* HC and newer */
+		/* FREQ2 = aux/2 = 48 MHz */
+		sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20));
+		au_writel(sys_freqctrl, SYS_FREQCTRL0);
+		break;
+	}
+
+	/*
+	 * Route 48MHz FREQ2 into USB Host and/or Device
+	 */
+	sys_clksrc |= ((4<<12) | (0<<11) | (0<<10));
+	au_writel(sys_clksrc, SYS_CLKSRC);
+
+	/* configure pins GPIO[14:9] as GPIO */
+	pin_func = au_readl(SYS_PINFUNC) & (u32)(~0x8080);
+
+	au_writel(pin_func, SYS_PINFUNC);
+	au_writel(0x2800, SYS_TRIOUTCLR);
+	au_writel(0x0030, SYS_OUTPUTCLR);
+
+	dbg("OHCI board setup complete\n");
+
+	/* enable host controller */
+	au_writel(USBH_ENABLE_CE, USB_HOST_CONFIG);
+	udelay(1000);
+	au_writel(USBH_ENABLE_INIT, USB_HOST_CONFIG);
+	udelay(1000);
+
+	/* wait for reset complete (read register twice; see au1500 errata) */
+	while (au_readl(USB_HOST_CONFIG),
+	       !(au_readl(USB_HOST_CONFIG) & USBH_ENABLE_RD))
+		udelay(1000);
+
+	dbg("OHCI clock running\n");
+
+	memset (&gohci, 0, sizeof (ohci_t));
+	memset (&urb_priv, 0, sizeof (urb_priv_t));
+
+	/* align the storage */
+	if ((__u32)&ghcca[0] & 0xff) {
+		err("HCCA not aligned!!");
+		return -1;
+	}
+	phcca = &ghcca[0];
+	info("aligned ghcca %p", phcca);
+	memset(&ohci_dev, 0, sizeof(struct ohci_device));
+	if ((__u32)&ohci_dev.ed[0] & 0x7) {
+		err("EDs not aligned!!");
+		return -1;
+	}
+	memset(gtd, 0, sizeof(td_t) * (NUM_TD + 1));
+	if ((__u32)gtd & 0x7) {
+		err("TDs not aligned!!");
+		return -1;
+	}
+	ptd = gtd;
+	gohci.hcca = phcca;
+	memset (phcca, 0, sizeof (struct ohci_hcca));
+
+	gohci.disabled = 1;
+	gohci.sleeping = 0;
+	gohci.irq = -1;
+	gohci.regs = (struct ohci_regs *)(USB_OHCI_BASE | 0xA0000000);
+
+	gohci.flags = 0;
+	gohci.slot_name = "au1x00";
+
+	dbg("OHCI revision: 0x%08x\n"
+	       "  RH: a: 0x%08x b: 0x%08x\n",
+	       readl(&gohci.regs->revision),
+	       readl(&gohci.regs->roothub.a), readl(&gohci.regs->roothub.b));
+
+	if (hc_reset (&gohci) < 0)
+		goto errout;
+
+	/* FIXME this is a second HC reset; why?? */
+	writel (gohci.hc_control = OHCI_USB_RESET, &gohci.regs->control);
+	wait_ms (10);
+
+	if (hc_start (&gohci) < 0)
+		goto errout;
+
+#ifdef	DEBUG
+	ohci_dump (&gohci, 1);
+#else
+	wait_ms(1);
+#endif
+	ohci_inited = 1;
+	return 0;
+
+  errout:
+	err("OHCI initialization error\n");
+	hc_release_ohci (&gohci);
+	/* Initialization failed */
+	au_writel(readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG);
+	return -1;
+}
+
+int usb_lowlevel_stop(void)
+{
+	/* this gets called really early - before the controller has */
+	/* even been initialized! */
+	if (!ohci_inited)
+		return 0;
+	/* TODO release any interrupts, etc. */
+	/* call hc_release_ohci() here ? */
+	hc_reset (&gohci);
+	/* may not want to do this */
+	/* Disable clock */
+	au_writel(readl(USB_HOST_CONFIG) & ~USBH_ENABLE_CE, USB_HOST_CONFIG);
+	return 0;
+}
+
+#endif /* CONFIG_USB_OHCI */
diff --git a/arch/mips/cpu/au1x00_usb_ohci.h b/arch/mips/cpu/au1x00_usb_ohci.h
new file mode 100644
index 00000000000..bb9f351099e
--- /dev/null
+++ b/arch/mips/cpu/au1x00_usb_ohci.h
@@ -0,0 +1,416 @@
+/*
+ * URB OHCI HCD (Host Controller Driver) for USB.
+ *
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2001 David Brownell <dbrownell@users.sourceforge.net>
+ *
+ * usb-ohci.h
+ */
+
+
+static int cc_to_error[16] = {
+
+/* mapping of the OHCI CC status to error codes */
+	/* No  Error  */	0,
+	/* CRC Error  */	USB_ST_CRC_ERR,
+	/* Bit Stuff  */	USB_ST_BIT_ERR,
+	/* Data Togg  */	USB_ST_CRC_ERR,
+	/* Stall      */	USB_ST_STALLED,
+	/* DevNotResp */	-1,
+	/* PIDCheck   */	USB_ST_BIT_ERR,
+	/* UnExpPID   */	USB_ST_BIT_ERR,
+	/* DataOver   */	USB_ST_BUF_ERR,
+	/* DataUnder  */	USB_ST_BUF_ERR,
+	/* reservd    */	-1,
+	/* reservd    */	-1,
+	/* BufferOver */	USB_ST_BUF_ERR,
+	/* BuffUnder  */	USB_ST_BUF_ERR,
+	/* Not Access */	-1,
+	/* Not Access */	-1
+};
+
+/* ED States */
+
+#define ED_NEW		0x00
+#define ED_UNLINK	0x01
+#define ED_OPER		0x02
+#define ED_DEL		0x04
+#define ED_URB_DEL	0x08
+
+/* usb_ohci_ed */
+struct ed {
+	__u32 hwINFO;
+	__u32 hwTailP;
+	__u32 hwHeadP;
+	__u32 hwNextED;
+
+	struct ed *ed_prev;
+	__u8 int_period;
+	__u8 int_branch;
+	__u8 int_load;
+	__u8 int_interval;
+	__u8 state;
+	__u8 type;
+	__u16 last_iso;
+	struct ed *ed_rm_list;
+
+	struct usb_device *usb_dev;
+	__u32 unused[3];
+} __attribute__((aligned(16)));
+typedef struct ed ed_t;
+
+
+/* TD info field */
+#define TD_CC			0xf0000000
+#define TD_CC_GET(td_p)		((td_p >>28) & 0x0f)
+#define TD_CC_SET(td_p, cc)	(td_p) = ((td_p) & 0x0fffffff) | (((cc) & 0x0f) << 28)
+#define TD_EC			0x0C000000
+#define TD_T			0x03000000
+#define TD_T_DATA0		0x02000000
+#define TD_T_DATA1		0x03000000
+#define TD_T_TOGGLE		0x00000000
+#define TD_R			0x00040000
+#define TD_DI			0x00E00000
+#define TD_DI_SET(X)		(((X) & 0x07)<< 21)
+#define TD_DP			0x00180000
+#define TD_DP_SETUP		0x00000000
+#define TD_DP_IN		0x00100000
+#define TD_DP_OUT		0x00080000
+
+#define TD_ISO			0x00010000
+#define TD_DEL			0x00020000
+
+/* CC Codes */
+#define TD_CC_NOERROR		0x00
+#define TD_CC_CRC		0x01
+#define TD_CC_BITSTUFFING	0x02
+#define TD_CC_DATATOGGLEM	0x03
+#define TD_CC_STALL		0x04
+#define TD_DEVNOTRESP		0x05
+#define TD_PIDCHECKFAIL		0x06
+#define TD_UNEXPECTEDPID	0x07
+#define TD_DATAOVERRUN		0x08
+#define TD_DATAUNDERRUN		0x09
+#define TD_BUFFEROVERRUN	0x0C
+#define TD_BUFFERUNDERRUN	0x0D
+#define TD_NOTACCESSED		0x0F
+
+
+#define MAXPSW 1
+
+struct td {
+	__u32 hwINFO;
+	__u32 hwCBP;		/* Current Buffer Pointer */
+	__u32 hwNextTD;		/* Next TD Pointer */
+	__u32 hwBE;		/* Memory Buffer End Pointer */
+
+	__u16 hwPSW[MAXPSW];
+	__u8 unused;
+	__u8 index;
+	struct ed *ed;
+	struct td *next_dl_td;
+	struct usb_device *usb_dev;
+	int transfer_len;
+	__u32 data;
+
+	__u32 unused2[2];
+} __attribute__((aligned(32)));
+typedef struct td td_t;
+
+#define OHCI_ED_SKIP	(1 << 14)
+
+/*
+ * The HCCA (Host Controller Communications Area) is a 256 byte
+ * structure defined in the OHCI spec. that the host controller is
+ * told the base address of.  It must be 256-byte aligned.
+ */
+
+#define NUM_INTS 32	/* part of the OHCI standard */
+struct ohci_hcca {
+	__u32	int_table[NUM_INTS];	/* Interrupt ED table */
+	__u16	frame_no;		/* current frame number */
+	__u16	pad1;			/* set to 0 on each frame_no change */
+	__u32	done_head;		/* info returned for an interrupt */
+	u8		reserved_for_hc[116];
+} __attribute__((aligned(256)));
+
+
+/*
+ * Maximum number of root hub ports.
+ */
+#define MAX_ROOT_PORTS	15	/* maximum OHCI root hub ports */
+
+/*
+ * This is the structure of the OHCI controller's memory mapped I/O
+ * region.  This is Memory Mapped I/O.	You must use the readl() and
+ * writel() macros defined in asm/io.h to access these!!
+ */
+struct ohci_regs {
+	/* control and status registers */
+	__u32	revision;
+	__u32	control;
+	__u32	cmdstatus;
+	__u32	intrstatus;
+	__u32	intrenable;
+	__u32	intrdisable;
+	/* memory pointers */
+	__u32	hcca;
+	__u32	ed_periodcurrent;
+	__u32	ed_controlhead;
+	__u32	ed_controlcurrent;
+	__u32	ed_bulkhead;
+	__u32	ed_bulkcurrent;
+	__u32	donehead;
+	/* frame counters */
+	__u32	fminterval;
+	__u32	fmremaining;
+	__u32	fmnumber;
+	__u32	periodicstart;
+	__u32	lsthresh;
+	/* Root hub ports */
+	struct	ohci_roothub_regs {
+		__u32	a;
+		__u32	b;
+		__u32	status;
+		__u32	portstatus[MAX_ROOT_PORTS];
+	} roothub;
+} __attribute__((aligned(32)));
+
+
+/* OHCI CONTROL AND STATUS REGISTER MASKS */
+
+/*
+ * HcControl (control) register masks
+ */
+#define OHCI_CTRL_CBSR	(3 << 0)	/* control/bulk service ratio */
+#define OHCI_CTRL_PLE	(1 << 2)	/* periodic list enable */
+#define OHCI_CTRL_IE	(1 << 3)	/* isochronous enable */
+#define OHCI_CTRL_CLE	(1 << 4)	/* control list enable */
+#define OHCI_CTRL_BLE	(1 << 5)	/* bulk list enable */
+#define OHCI_CTRL_HCFS	(3 << 6)	/* host controller functional state */
+#define OHCI_CTRL_IR	(1 << 8)	/* interrupt routing */
+#define OHCI_CTRL_RWC	(1 << 9)	/* remote wakeup connected */
+#define OHCI_CTRL_RWE	(1 << 10)	/* remote wakeup enable */
+
+/* pre-shifted values for HCFS */
+#	define OHCI_USB_RESET	(0 << 6)
+#	define OHCI_USB_RESUME	(1 << 6)
+#	define OHCI_USB_OPER	(2 << 6)
+#	define OHCI_USB_SUSPEND	(3 << 6)
+
+/*
+ * HcCommandStatus (cmdstatus) register masks
+ */
+#define OHCI_HCR	(1 << 0)	/* host controller reset */
+#define OHCI_CLF	(1 << 1)	/* control list filled */
+#define OHCI_BLF	(1 << 2)	/* bulk list filled */
+#define OHCI_OCR	(1 << 3)	/* ownership change request */
+#define OHCI_SOC	(3 << 16)	/* scheduling overrun count */
+
+/*
+ * masks used with interrupt registers:
+ * HcInterruptStatus (intrstatus)
+ * HcInterruptEnable (intrenable)
+ * HcInterruptDisable (intrdisable)
+ */
+#define OHCI_INTR_SO	(1 << 0)	/* scheduling overrun */
+#define OHCI_INTR_WDH	(1 << 1)	/* writeback of done_head */
+#define OHCI_INTR_SF	(1 << 2)	/* start frame */
+#define OHCI_INTR_RD	(1 << 3)	/* resume detect */
+#define OHCI_INTR_UE	(1 << 4)	/* unrecoverable error */
+#define OHCI_INTR_FNO	(1 << 5)	/* frame number overflow */
+#define OHCI_INTR_RHSC	(1 << 6)	/* root hub status change */
+#define OHCI_INTR_OC	(1 << 30)	/* ownership change */
+#define OHCI_INTR_MIE	(1 << 31)	/* master interrupt enable */
+
+
+/* Virtual Root HUB */
+struct virt_root_hub {
+	int devnum; /* Address of Root Hub endpoint */
+	void *dev;  /* was urb */
+	void *int_addr;
+	int send;
+	int interval;
+};
+
+/* USB HUB CONSTANTS (not OHCI-specific; see hub.h) */
+
+/* destination of request */
+#define RH_INTERFACE		0x01
+#define RH_ENDPOINT		0x02
+#define RH_OTHER		0x03
+
+#define RH_CLASS		0x20
+#define RH_VENDOR		0x40
+
+/* Requests: bRequest << 8 | bmRequestType */
+#define RH_GET_STATUS		0x0080
+#define RH_CLEAR_FEATURE	0x0100
+#define RH_SET_FEATURE		0x0300
+#define RH_SET_ADDRESS		0x0500
+#define RH_GET_DESCRIPTOR	0x0680
+#define RH_SET_DESCRIPTOR	0x0700
+#define RH_GET_CONFIGURATION	0x0880
+#define RH_SET_CONFIGURATION	0x0900
+#define RH_GET_STATE		0x0280
+#define RH_GET_INTERFACE	0x0A80
+#define RH_SET_INTERFACE	0x0B00
+#define RH_SYNC_FRAME		0x0C80
+/* Our Vendor Specific Request */
+#define RH_SET_EP		0x2000
+
+
+/* Hub port features */
+#define RH_PORT_CONNECTION	0x00
+#define RH_PORT_ENABLE		0x01
+#define RH_PORT_SUSPEND		0x02
+#define RH_PORT_OVER_CURRENT	0x03
+#define RH_PORT_RESET		0x04
+#define RH_PORT_POWER		0x08
+#define RH_PORT_LOW_SPEED	0x09
+
+#define RH_C_PORT_CONNECTION	0x10
+#define RH_C_PORT_ENABLE	0x11
+#define RH_C_PORT_SUSPEND	0x12
+#define RH_C_PORT_OVER_CURRENT	0x13
+#define RH_C_PORT_RESET		0x14
+
+/* Hub features */
+#define RH_C_HUB_LOCAL_POWER	0x00
+#define RH_C_HUB_OVER_CURRENT	0x01
+
+#define RH_DEVICE_REMOTE_WAKEUP 0x00
+#define RH_ENDPOINT_STALL	0x01
+
+#define RH_ACK			0x01
+#define RH_REQ_ERR		-1
+#define RH_NACK			0x00
+
+
+/* OHCI ROOT HUB REGISTER MASKS */
+
+/* roothub.portstatus [i] bits */
+#define RH_PS_CCS		0x00000001	/* current connect status */
+#define RH_PS_PES		0x00000002	/* port enable status*/
+#define RH_PS_PSS		0x00000004	/* port suspend status */
+#define RH_PS_POCI		0x00000008	/* port over current indicator */
+#define RH_PS_PRS		0x00000010	/* port reset status */
+#define RH_PS_PPS		0x00000100	/* port power status */
+#define RH_PS_LSDA		0x00000200	/* low speed device attached */
+#define RH_PS_CSC		0x00010000	/* connect status change */
+#define RH_PS_PESC		0x00020000	/* port enable status change */
+#define RH_PS_PSSC		0x00040000	/* port suspend status change */
+#define RH_PS_OCIC		0x00080000	/* over current indicator change */
+#define RH_PS_PRSC		0x00100000	/* port reset status change */
+
+/* roothub.status bits */
+#define RH_HS_LPS		0x00000001	/* local power status */
+#define RH_HS_OCI		0x00000002	/* over current indicator */
+#define RH_HS_DRWE		0x00008000	/* device remote wakeup enable */
+#define RH_HS_LPSC		0x00010000	/* local power status change */
+#define RH_HS_OCIC		0x00020000	/* over current indicator change */
+#define RH_HS_CRWE		0x80000000	/* clear remote wakeup enable */
+
+/* roothub.b masks */
+#define RH_B_DR			0x0000ffff	/* device removable flags */
+#define RH_B_PPCM		0xffff0000	/* port power control mask */
+
+/* roothub.a masks */
+#define	RH_A_NDP		(0xff << 0)	/* number of downstream ports */
+#define	RH_A_PSM		(1 << 8)	/* power switching mode */
+#define	RH_A_NPS		(1 << 9)	/* no power switching */
+#define	RH_A_DT			(1 << 10)	/* device type (mbz) */
+#define	RH_A_OCPM		(1 << 11)	/* over current protection mode */
+#define	RH_A_NOCP		(1 << 12)	/* no over current protection */
+#define	RH_A_POTPGT		(0xff << 24)	/* power on to power good time */
+
+/* urb */
+#define N_URB_TD 48
+typedef struct
+{
+	ed_t *ed;
+	__u16 length;		/* number of tds associated with this request */
+	__u16 td_cnt;		/* number of tds already serviced */
+	int   state;
+	unsigned long pipe;
+	int actual_length;
+	td_t *td[N_URB_TD];	/* list pointer to all corresponding TDs associated with this request */
+} urb_priv_t;
+#define URB_DEL 1
+
+/*
+ * This is the full ohci controller description
+ *
+ * Note how the "proper" USB information is just
+ * a subset of what the full implementation needs. (Linus)
+ */
+
+
+typedef struct ohci {
+	struct ohci_hcca *hcca;		/* hcca */
+	/*dma_addr_t hcca_dma;*/
+
+	int irq;
+	int disabled;			/* e.g. got a UE, we're hung */
+	int sleeping;
+	unsigned long flags;		/* for HC bugs */
+
+	struct ohci_regs *regs;		/* OHCI controller's memory */
+
+	ed_t *ed_rm_list[2];		/* lists of all endpoints to be removed */
+	ed_t *ed_bulktail;		/* last endpoint of bulk list */
+	ed_t *ed_controltail;		/* last endpoint of control list */
+	int intrstatus;
+	__u32 hc_control;		/* copy of the hc control reg */
+	struct usb_device *dev[32];
+	struct virt_root_hub rh;
+
+	const char	*slot_name;
+} ohci_t;
+
+#define NUM_EDS 8		/* num of preallocated endpoint descriptors */
+
+struct ohci_device {
+	ed_t	ed[NUM_EDS];
+	int ed_cnt;
+};
+
+/* hcd */
+/* endpoint */
+static int ep_link(ohci_t * ohci, ed_t * ed);
+static int ep_unlink(ohci_t * ohci, ed_t * ed);
+static ed_t * ep_add_ed(struct usb_device * usb_dev, unsigned long pipe);
+
+/*-------------------------------------------------------------------------*/
+
+/* we need more TDs than EDs */
+#define NUM_TD 64
+
+/* +1 so we can align the storage */
+td_t gtd[NUM_TD+1];
+/* pointers to aligned storage */
+td_t *ptd;
+
+/* TDs ... */
+static inline struct td *
+td_alloc (struct usb_device *usb_dev)
+{
+	int i;
+	struct td	*td;
+
+	td = NULL;
+	for (i = 0; i < NUM_TD; i++) {
+		if (ptd[i].usb_dev == NULL) {
+			td = &ptd[i];
+			td->usb_dev = usb_dev;
+			break;
+		}
+	}
+	return td;
+}
+
+static inline void
+ed_free (struct ed *ed)
+{
+	ed->usb_dev = NULL;
+}
diff --git a/arch/mips/cpu/cache.S b/arch/mips/cpu/cache.S
new file mode 100644
index 00000000000..ff4f11cf787
--- /dev/null
+++ b/arch/mips/cpu/cache.S
@@ -0,0 +1,331 @@
+/*
+ *  Cache-handling routined for MIPS CPUs
+ *
+ *  Copyright (c) 2003	Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+#define RA		t8
+
+/*
+ * 16kB is the maximum size of instruction and data caches on MIPS 4K,
+ * 64kB is on 4KE, 24K, 5K, etc. Set bigger size for convenience.
+ *
+ * Note that the above size is the maximum size of primary cache. U-Boot
+ * doesn't have L2 cache support for now.
+ */
+#define MIPS_MAX_CACHE_SIZE	0x10000
+
+#define INDEX_BASE	CKSEG0
+
+	.macro	cache_op op addr
+	.set	push
+	.set	noreorder
+	.set	mips3
+	cache	\op, 0(\addr)
+	.set	pop
+	.endm
+
+/*
+ * cacheop macro to automate cache operations
+ * first some helpers...
+ */
+#define _mincache(size, maxsize) \
+   bltu  size,maxsize,9f ; \
+   move  size,maxsize ;    \
+9:
+
+#define _align(minaddr, maxaddr, linesize) \
+   .set noat ; \
+   subu  AT,linesize,1 ;   \
+   not   AT ;        \
+   and   minaddr,AT ;      \
+   addu  maxaddr,-1 ;      \
+   and   maxaddr,AT ;      \
+   .set at
+
+/* general operations */
+#define doop1(op1) \
+   cache op1,0(a0)
+#define doop2(op1, op2) \
+   cache op1,0(a0) ;    \
+   nop ;          \
+   cache op2,0(a0)
+
+/* specials for cache initialisation */
+#define doop1lw(op1) \
+   lw zero,0(a0)
+#define doop1lw1(op1) \
+   cache op1,0(a0) ;    \
+   lw zero,0(a0) ;      \
+   cache op1,0(a0)
+#define doop121(op1,op2) \
+   cache op1,0(a0) ;    \
+   nop;           \
+   cache op2,0(a0) ;    \
+   nop;           \
+   cache op1,0(a0)
+
+#define _oploopn(minaddr, maxaddr, linesize, tag, ops) \
+   .set  noreorder ;    \
+10:   doop##tag##ops ;  \
+   bne     minaddr,maxaddr,10b ; \
+   add      minaddr,linesize ;   \
+   .set  reorder
+
+/* finally the cache operation macros */
+#define vcacheopn(kva, n, cacheSize, cacheLineSize, tag, ops) \
+   blez  n,11f ;        \
+   addu  n,kva ;        \
+   _align(kva, n, cacheLineSize) ; \
+   _oploopn(kva, n, cacheLineSize, tag, ops) ; \
+11:
+
+#define icacheopn(kva, n, cacheSize, cacheLineSize, tag, ops) \
+   _mincache(n, cacheSize);   \
+   blez  n,11f ;        \
+   addu  n,kva ;        \
+   _align(kva, n, cacheLineSize) ; \
+   _oploopn(kva, n, cacheLineSize, tag, ops) ; \
+11:
+
+#define vcacheop(kva, n, cacheSize, cacheLineSize, op) \
+   vcacheopn(kva, n, cacheSize, cacheLineSize, 1, (op))
+
+#define icacheop(kva, n, cacheSize, cacheLineSize, op) \
+   icacheopn(kva, n, cacheSize, cacheLineSize, 1, (op))
+
+	.macro	f_fill64 dst, offset, val
+	LONG_S	\val, (\offset +  0 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  1 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  2 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  3 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  4 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  5 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  6 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  7 * LONGSIZE)(\dst)
+#if LONGSIZE == 4
+	LONG_S	\val, (\offset +  8 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset +  9 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset + 10 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset + 11 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset + 12 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset + 13 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset + 14 * LONGSIZE)(\dst)
+	LONG_S	\val, (\offset + 15 * LONGSIZE)(\dst)
+#endif
+	.endm
+
+/*
+ * mips_init_icache(uint PRId, ulong icache_size, unchar icache_linesz)
+ */
+LEAF(mips_init_icache)
+	blez	a1, 9f
+	mtc0	zero, CP0_TAGLO
+	/* clear tag to invalidate */
+	PTR_LI		t0, INDEX_BASE
+	PTR_ADDU	t1, t0, a1
+1:	cache_op	Index_Store_Tag_I t0
+	PTR_ADDU	t0, a2
+	bne		t0, t1, 1b
+	/* fill once, so data field parity is correct */
+	PTR_LI		t0, INDEX_BASE
+2:	cache_op	Fill t0
+	PTR_ADDU	t0, a2
+	bne		t0, t1, 2b
+	/* invalidate again - prudent but not strictly neccessary */
+	PTR_LI		t0, INDEX_BASE
+1:	cache_op	Index_Store_Tag_I t0
+	PTR_ADDU	t0, a2
+	bne		t0, t1, 1b
+9:	jr	ra
+	END(mips_init_icache)
+
+/*
+ * mips_init_dcache(uint PRId, ulong dcache_size, unchar dcache_linesz)
+ */
+LEAF(mips_init_dcache)
+	blez	a1, 9f
+	mtc0	zero, CP0_TAGLO
+	/* clear all tags */
+	PTR_LI		t0, INDEX_BASE
+	PTR_ADDU	t1, t0, a1
+1:	cache_op	Index_Store_Tag_D t0
+	PTR_ADDU	t0, a2
+	bne		t0, t1, 1b
+	/* load from each line (in cached space) */
+	PTR_LI		t0, INDEX_BASE
+2:	LONG_L		zero, 0(t0)
+	PTR_ADDU	t0, a2
+	bne		t0, t1, 2b
+	/* clear all tags */
+	PTR_LI		t0, INDEX_BASE
+1:	cache_op	Index_Store_Tag_D t0
+	PTR_ADDU	t0, a2
+	bne		t0, t1, 1b
+9:	jr	ra
+	END(mips_init_dcache)
+
+/*******************************************************************************
+*
+* mips_cache_reset - low level initialisation of the primary caches
+*
+* This routine initialises the primary caches to ensure that they
+* have good parity.  It must be called by the ROM before any cached locations
+* are used to prevent the possibility of data with bad parity being written to
+* memory.
+* To initialise the instruction cache it is essential that a source of data
+* with good parity is available. This routine
+* will initialise an area of memory starting at location zero to be used as
+* a source of parity.
+*
+* RETURNS: N/A
+*
+*/
+NESTED(mips_cache_reset, 0, ra)
+	move	RA, ra
+	li	t2, CONFIG_SYS_ICACHE_SIZE
+	li	t3, CONFIG_SYS_DCACHE_SIZE
+	li	t4, CONFIG_SYS_CACHELINE_SIZE
+	move	t5, t4
+
+	li	v0, MIPS_MAX_CACHE_SIZE
+
+	/*
+	 * Now clear that much memory starting from zero.
+	 */
+	PTR_LI		a0, CKSEG1
+	PTR_ADDU	a1, a0, v0
+2:	PTR_ADDIU	a0, 64
+	f_fill64	a0, -64, zero
+	bne		a0, a1, 2b
+
+	/*
+	 * The caches are probably in an indeterminate state,
+	 * so we force good parity into them by doing an
+	 * invalidate, load/fill, invalidate for each line.
+	 */
+
+	/*
+	 * Assume bottom of RAM will generate good parity for the cache.
+	 */
+
+	/*
+	 * Initialize the I-cache first,
+	 */
+	move	a1, t2
+	move	a2, t4
+	PTR_LA	t7, mips_init_icache
+	jalr	t7
+
+	/*
+	 * then initialize D-cache.
+	 */
+	move	a1, t3
+	move	a2, t5
+	PTR_LA	t7, mips_init_dcache
+	jalr	t7
+
+	jr	RA
+	END(mips_cache_reset)
+
+/*******************************************************************************
+*
+* dcache_status - get cache status
+*
+* RETURNS: 0 - cache disabled; 1 - cache enabled
+*
+*/
+LEAF(dcache_status)
+	mfc0	t0, CP0_CONFIG
+	li	t1, CONF_CM_UNCACHED
+	andi	t0, t0, CONF_CM_CMASK
+	move	v0, zero
+	beq	t0, t1, 2f
+	li	v0, 1
+2:	jr	ra
+	END(dcache_status)
+
+/*******************************************************************************
+*
+* dcache_disable - disable cache
+*
+* RETURNS: N/A
+*
+*/
+LEAF(dcache_disable)
+	mfc0	t0, CP0_CONFIG
+	li	t1, -8
+	and	t0, t0, t1
+	ori	t0, t0, CONF_CM_UNCACHED
+	mtc0	t0, CP0_CONFIG
+	jr	ra
+	END(dcache_disable)
+
+/*******************************************************************************
+*
+* dcache_enable - enable cache
+*
+* RETURNS: N/A
+*
+*/
+LEAF(dcache_enable)
+	mfc0	t0, CP0_CONFIG
+	ori	t0, CONF_CM_CMASK
+	xori	t0, CONF_CM_CMASK
+	ori	t0, CONF_CM_CACHABLE_NONCOHERENT
+	mtc0	t0, CP0_CONFIG
+	jr	ra
+	END(dcache_enable)
+
+#ifdef CONFIG_SYS_INIT_RAM_LOCK_MIPS
+/*******************************************************************************
+*
+* mips_cache_lock - lock RAM area pointed to by a0 in cache.
+*
+* RETURNS: N/A
+*
+*/
+#if defined(CONFIG_PURPLE)
+# define	CACHE_LOCK_SIZE	(CONFIG_SYS_DCACHE_SIZE/2)
+#else
+# define	CACHE_LOCK_SIZE	(CONFIG_SYS_DCACHE_SIZE)
+#endif
+	.globl	mips_cache_lock
+	.ent	mips_cache_lock
+mips_cache_lock:
+	li	a1, CKSEG0 - CACHE_LOCK_SIZE
+	addu	a0, a1
+	li	a2, CACHE_LOCK_SIZE
+	li	a3, CONFIG_SYS_CACHELINE_SIZE
+	move	a1, a2
+	icacheop(a0,a1,a2,a3,0x1d)
+
+	jr	ra
+
+	.end	mips_cache_lock
+#endif /* CONFIG_SYS_INIT_RAM_LOCK_MIPS */
diff --git a/arch/mips/cpu/config.mk b/arch/mips/cpu/config.mk
new file mode 100644
index 00000000000..a173c5480c0
--- /dev/null
+++ b/arch/mips/cpu/config.mk
@@ -0,0 +1,39 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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
+#
+v=$(shell $(AS) --version | grep 'GNU assembler' | egrep -o '2\.[0-9\.]+' | cut -d. -f2)
+MIPSFLAGS:=$(shell \
+if [ "$v" -lt "14" ]; then \
+	echo "-mcpu=4kc"; \
+else \
+	echo "-march=4kc -mtune=4kc"; \
+fi)
+
+ifneq (,$(findstring 4KCle,$(CROSS_COMPILE)))
+ENDIANNESS = -EL
+else
+ENDIANNESS = -EB
+endif
+
+MIPSFLAGS += $(ENDIANNESS)
+
+PLATFORM_CPPFLAGS += $(MIPSFLAGS)
diff --git a/arch/mips/cpu/cpu.c b/arch/mips/cpu/cpu.c
new file mode 100644
index 00000000000..d5a16047de9
--- /dev/null
+++ b/arch/mips/cpu/cpu.c
@@ -0,0 +1,112 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <asm/mipsregs.h>
+#include <asm/cacheops.h>
+#include <asm/reboot.h>
+
+#define cache_op(op,addr)						\
+	__asm__ __volatile__(						\
+	"	.set	push					\n"	\
+	"	.set	noreorder				\n"	\
+	"	.set	mips3\n\t				\n"	\
+	"	cache	%0, %1					\n"	\
+	"	.set	pop					\n"	\
+	:								\
+	: "i" (op), "R" (*(unsigned char *)(addr)))
+
+void __attribute__((weak)) _machine_restart(void)
+{
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	_machine_restart();
+
+	fprintf(stderr, "*** reset failed ***\n");
+	return 0;
+}
+
+void flush_cache(ulong start_addr, ulong size)
+{
+	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long addr = start_addr & ~(lsize - 1);
+	unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
+
+	while (1) {
+		cache_op(Hit_Writeback_Inv_D, addr);
+		cache_op(Hit_Invalidate_I, addr);
+		if (addr == aend)
+			break;
+		addr += lsize;
+	}
+}
+
+void flush_dcache_range(ulong start_addr, ulong stop)
+{
+	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long addr = start_addr & ~(lsize - 1);
+	unsigned long aend = (stop - 1) & ~(lsize - 1);
+
+	while (1) {
+		cache_op(Hit_Writeback_Inv_D, addr);
+		if (addr == aend)
+			break;
+		addr += lsize;
+	}
+}
+
+void invalidate_dcache_range(ulong start_addr, ulong stop)
+{
+	unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
+	unsigned long addr = start_addr & ~(lsize - 1);
+	unsigned long aend = (stop - 1) & ~(lsize - 1);
+
+	while (1) {
+		cache_op(Hit_Invalidate_D, addr);
+		if (addr == aend)
+			break;
+		addr += lsize;
+	}
+}
+
+void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1)
+{
+	write_c0_entrylo0(low0);
+	write_c0_pagemask(pagemask);
+	write_c0_entrylo1(low1);
+	write_c0_entryhi(hi);
+	write_c0_index(index);
+	tlb_write_indexed();
+}
+
+int cpu_eth_init(bd_t *bis)
+{
+#ifdef CONFIG_SOC_AU1X00
+	au1x00_enet_initialize(bis);
+#endif
+	return 0;
+}
diff --git a/arch/mips/cpu/incaip_clock.c b/arch/mips/cpu/incaip_clock.c
new file mode 100644
index 00000000000..fc2c62180b3
--- /dev/null
+++ b/arch/mips/cpu/incaip_clock.c
@@ -0,0 +1,116 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <asm/inca-ip.h>
+
+
+/*******************************************************************************
+*
+* get_cpuclk - returns the frequency of the CPU.
+*
+* Gets the value directly from the INCA-IP hardware.
+*
+* RETURNS:
+*          150.000.000 for 150 MHz
+*          133.333.333 for 133 MHz (= 400MHz/3)
+*          100.000.000 for 100 MHz (= 400MHz/4)
+* NOTE:
+*   This functions should be used by the hardware driver to get the correct
+*   frequency of the CPU. Don't use the macros, which are set to init the CPU
+*   frequency in the ROM code.
+*/
+uint incaip_get_cpuclk (void)
+{
+	/*-------------------------------------------------------------------------*/
+	/* CPU Clock Input Multiplexer (MUX I)                                     */
+	/* Multiplexer MUX I selects the maximum input clock to the CPU.           */
+	/*-------------------------------------------------------------------------*/
+	if (*((volatile ulong *) INCA_IP_CGU_CGU_MUXCR) &
+	    INCA_IP_CGU_CGU_MUXCR_MUXI) {
+		/* MUX I set to 150 MHz clock */
+		return 150000000;
+	} else {
+		/* MUX I set to 100/133 MHz clock */
+		if (*((volatile ulong *) INCA_IP_CGU_CGU_DIVCR) & 0x40) {
+			/* Division value is 1/3, maximum CPU operating */
+			/* frequency is 133.3 MHz                       */
+			return 133333333;
+		} else {
+			/* Division value is 1/4, maximum CPU operating */
+			/* frequency is 100 MHz                         */
+			return 100000000;
+		}
+	}
+}
+
+/*******************************************************************************
+*
+* get_fpiclk - returns the frequency of the FPI bus.
+*
+* Gets the value directly from the INCA-IP hardware.
+*
+* RETURNS: Frquency in Hz
+*
+* NOTE:
+*   This functions should be used by the hardware driver to get the correct
+*   frequency of the CPU. Don't use the macros, which are set to init the CPU
+*   frequency in the ROM code.
+*   The calculation for the
+*/
+uint incaip_get_fpiclk (void)
+{
+	uint clkCPU;
+
+	clkCPU = incaip_get_cpuclk ();
+
+	switch (*((volatile ulong *) INCA_IP_CGU_CGU_DIVCR) & 0xC) {
+	case 0x4:
+		return clkCPU >> 1;	/* devided by 2 */
+		break;
+	case 0x8:
+		return clkCPU >> 2;	/* devided by 4 */
+		break;
+	default:
+		return clkCPU;
+		break;
+	}
+}
+
+int incaip_set_cpuclk (void)
+{
+	extern void ebu_init(long);
+	extern void cgu_init(long);
+	extern void sdram_init(long);
+	char tmp[64];
+	ulong cpuclk;
+
+	if (getenv_r ("cpuclk", tmp, sizeof (tmp)) > 0) {
+		cpuclk = simple_strtoul (tmp, NULL, 10) * 1000000;
+		cgu_init (cpuclk);
+		ebu_init (cpuclk);
+		sdram_init (cpuclk);
+	}
+
+	return 0;
+}
diff --git a/arch/mips/cpu/incaip_wdt.S b/arch/mips/cpu/incaip_wdt.S
new file mode 100644
index 00000000000..3ade3cd6fdc
--- /dev/null
+++ b/arch/mips/cpu/incaip_wdt.S
@@ -0,0 +1,71 @@
+/*
+ *  INCA-IP Watchdog timer management code.
+ *
+ *  Copyright (c) 2003	Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+
+#include <config.h>
+#include <asm/regdef.h>
+
+
+#define WD_BASE            0xb8000000
+#define WD_CON0(value)     0x0020(value)
+#define WD_CON1(value)     0x0024(value)
+#define WD_DISABLE         0x00000008
+#define WD_ENABLE          0x00000000
+#define WD_WRITE_PW        0xFFFC00F8
+#define WD_WRITE_ENDINIT   0xFFFC00F3
+#define WD_WRITE_INIT      0xFFFC00F2
+
+
+	.globl	disable_incaip_wdt
+disable_incaip_wdt:
+	li	t0, WD_BASE
+
+	/* Calculate password.
+	 */
+	lw	t2, WD_CON1(t0)
+	and	t2, 0xC
+
+	lw	t3, WD_CON0(t0)
+	and	t3, 0xFFFFFF01
+
+	or	t3, t2
+	or	t3, 0xF0
+
+	sw	t3, WD_CON0(t0)		/* write password */
+
+	/* Clear ENDINIT.
+	 */
+	li	t1, WD_WRITE_INIT
+	sw	t1, WD_CON0(t0)
+
+
+	li	t1, WD_DISABLE
+	sw	t1, WD_CON1(t0)		/* disable watchdog */
+	li	t1, WD_WRITE_PW
+	sw	t1, WD_CON0(t0)		/* write password */
+	li	t1, WD_WRITE_ENDINIT
+	sw	t1, WD_CON0(t0)		/* end command */
+
+	jr	ra
+	nop
diff --git a/arch/mips/cpu/interrupts.c b/arch/mips/cpu/interrupts.c
new file mode 100644
index 00000000000..87f7a9f7e6b
--- /dev/null
+++ b/arch/mips/cpu/interrupts.c
@@ -0,0 +1,33 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <common.h>
+
+void enable_interrupts(void)
+{
+}
+
+int disable_interrupts(void)
+{
+	return 0;
+}
diff --git a/arch/mips/cpu/start.S b/arch/mips/cpu/start.S
new file mode 100644
index 00000000000..57db589b94f
--- /dev/null
+++ b/arch/mips/cpu/start.S
@@ -0,0 +1,421 @@
+/*
+ *  Startup Code for MIPS32 CPU-core
+ *
+ *  Copyright (c) 2003	Wolfgang Denk <wd@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+
+	/*
+	 * For the moment disable interrupts, mark the kernel mode and
+	 * set ST0_KX so that the CPU does not spit fire when using
+	 * 64-bit addresses.
+	 */
+	.macro	setup_c0_status set clr
+	.set	push
+	mfc0	t0, CP0_STATUS
+	or	t0, ST0_CU0 | \set | 0x1f | \clr
+	xor	t0, 0x1f | \clr
+	mtc0	t0, CP0_STATUS
+	.set	noreorder
+	sll	zero, 3				# ehb
+	.set	pop
+	.endm
+
+	.macro	setup_c0_status_reset
+#ifdef CONFIG_64BIT
+	setup_c0_status ST0_KX 0
+#else
+	setup_c0_status 0 0
+#endif
+	.endm
+
+#define RVECENT(f,n) \
+   b f; nop
+#define XVECENT(f,bev) \
+   b f     ;           \
+   li k0,bev
+
+	.set noreorder
+
+	.globl _start
+	.text
+_start:
+	RVECENT(reset,0)	/* U-boot entry point */
+	RVECENT(reset,1)	/* software reboot */
+#if defined(CONFIG_INCA_IP)
+	.word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */
+	.word 0x00000000           /* phase of the flash                    */
+#elif defined(CONFIG_PURPLE)
+	.word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */
+	.word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */
+#else
+	RVECENT(romReserved,2)
+#endif
+	RVECENT(romReserved,3)
+	RVECENT(romReserved,4)
+	RVECENT(romReserved,5)
+	RVECENT(romReserved,6)
+	RVECENT(romReserved,7)
+	RVECENT(romReserved,8)
+	RVECENT(romReserved,9)
+	RVECENT(romReserved,10)
+	RVECENT(romReserved,11)
+	RVECENT(romReserved,12)
+	RVECENT(romReserved,13)
+	RVECENT(romReserved,14)
+	RVECENT(romReserved,15)
+	RVECENT(romReserved,16)
+	RVECENT(romReserved,17)
+	RVECENT(romReserved,18)
+	RVECENT(romReserved,19)
+	RVECENT(romReserved,20)
+	RVECENT(romReserved,21)
+	RVECENT(romReserved,22)
+	RVECENT(romReserved,23)
+	RVECENT(romReserved,24)
+	RVECENT(romReserved,25)
+	RVECENT(romReserved,26)
+	RVECENT(romReserved,27)
+	RVECENT(romReserved,28)
+	RVECENT(romReserved,29)
+	RVECENT(romReserved,30)
+	RVECENT(romReserved,31)
+	RVECENT(romReserved,32)
+	RVECENT(romReserved,33)
+	RVECENT(romReserved,34)
+	RVECENT(romReserved,35)
+	RVECENT(romReserved,36)
+	RVECENT(romReserved,37)
+	RVECENT(romReserved,38)
+	RVECENT(romReserved,39)
+	RVECENT(romReserved,40)
+	RVECENT(romReserved,41)
+	RVECENT(romReserved,42)
+	RVECENT(romReserved,43)
+	RVECENT(romReserved,44)
+	RVECENT(romReserved,45)
+	RVECENT(romReserved,46)
+	RVECENT(romReserved,47)
+	RVECENT(romReserved,48)
+	RVECENT(romReserved,49)
+	RVECENT(romReserved,50)
+	RVECENT(romReserved,51)
+	RVECENT(romReserved,52)
+	RVECENT(romReserved,53)
+	RVECENT(romReserved,54)
+	RVECENT(romReserved,55)
+	RVECENT(romReserved,56)
+	RVECENT(romReserved,57)
+	RVECENT(romReserved,58)
+	RVECENT(romReserved,59)
+	RVECENT(romReserved,60)
+	RVECENT(romReserved,61)
+	RVECENT(romReserved,62)
+	RVECENT(romReserved,63)
+	XVECENT(romExcHandle,0x200)	/* bfc00200: R4000 tlbmiss vector */
+	RVECENT(romReserved,65)
+	RVECENT(romReserved,66)
+	RVECENT(romReserved,67)
+	RVECENT(romReserved,68)
+	RVECENT(romReserved,69)
+	RVECENT(romReserved,70)
+	RVECENT(romReserved,71)
+	RVECENT(romReserved,72)
+	RVECENT(romReserved,73)
+	RVECENT(romReserved,74)
+	RVECENT(romReserved,75)
+	RVECENT(romReserved,76)
+	RVECENT(romReserved,77)
+	RVECENT(romReserved,78)
+	RVECENT(romReserved,79)
+	XVECENT(romExcHandle,0x280)	/* bfc00280: R4000 xtlbmiss vector */
+	RVECENT(romReserved,81)
+	RVECENT(romReserved,82)
+	RVECENT(romReserved,83)
+	RVECENT(romReserved,84)
+	RVECENT(romReserved,85)
+	RVECENT(romReserved,86)
+	RVECENT(romReserved,87)
+	RVECENT(romReserved,88)
+	RVECENT(romReserved,89)
+	RVECENT(romReserved,90)
+	RVECENT(romReserved,91)
+	RVECENT(romReserved,92)
+	RVECENT(romReserved,93)
+	RVECENT(romReserved,94)
+	RVECENT(romReserved,95)
+	XVECENT(romExcHandle,0x300)	/* bfc00300: R4000 cache vector */
+	RVECENT(romReserved,97)
+	RVECENT(romReserved,98)
+	RVECENT(romReserved,99)
+	RVECENT(romReserved,100)
+	RVECENT(romReserved,101)
+	RVECENT(romReserved,102)
+	RVECENT(romReserved,103)
+	RVECENT(romReserved,104)
+	RVECENT(romReserved,105)
+	RVECENT(romReserved,106)
+	RVECENT(romReserved,107)
+	RVECENT(romReserved,108)
+	RVECENT(romReserved,109)
+	RVECENT(romReserved,110)
+	RVECENT(romReserved,111)
+	XVECENT(romExcHandle,0x380)	/* bfc00380: R4000 general vector */
+	RVECENT(romReserved,113)
+	RVECENT(romReserved,114)
+	RVECENT(romReserved,115)
+	RVECENT(romReserved,116)
+	RVECENT(romReserved,116)
+	RVECENT(romReserved,118)
+	RVECENT(romReserved,119)
+	RVECENT(romReserved,120)
+	RVECENT(romReserved,121)
+	RVECENT(romReserved,122)
+	RVECENT(romReserved,123)
+	RVECENT(romReserved,124)
+	RVECENT(romReserved,125)
+	RVECENT(romReserved,126)
+	RVECENT(romReserved,127)
+
+	/* We hope there are no more reserved vectors!
+	 * 128 * 8 == 1024 == 0x400
+	 * so this is address R_VEC+0x400 == 0xbfc00400
+	 */
+#ifdef CONFIG_PURPLE
+/* 0xbfc00400 */
+	.word	0xdc870000
+	.word	0xfca70000
+	.word	0x20840008
+	.word	0x20a50008
+	.word	0x20c6ffff
+	.word	0x14c0fffa
+	.word	0x00000000
+	.word	0x03e00008
+	.word	0x00000000
+	.word	0x00000000
+/* 0xbfc00428 */
+	.word	0xdc870000
+	.word	0xfca70000
+	.word	0x20840008
+	.word	0x20a50008
+	.word	0x20c6ffff
+	.word	0x14c0fffa
+	.word	0x00000000
+	.word	0x03e00008
+	.word	0x00000000
+	.word	0x00000000
+#endif /* CONFIG_PURPLE */
+	.align 4
+reset:
+
+	/* Clear watch registers.
+	 */
+	mtc0	zero, CP0_WATCHLO
+	mtc0	zero, CP0_WATCHHI
+
+	/* WP(Watch Pending), SW0/1 should be cleared. */
+	mtc0	zero, CP0_CAUSE
+
+	setup_c0_status_reset
+
+	/* Init Timer */
+	mtc0	zero, CP0_COUNT
+	mtc0	zero, CP0_COMPARE
+
+#if !defined(CONFIG_SKIP_LOWLEVEL_INIT)
+	/* CONFIG0 register */
+	li	t0, CONF_CM_UNCACHED
+	mtc0	t0, CP0_CONFIG
+#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */
+
+	/* Initialize $gp.
+	 */
+	bal	1f
+	nop
+	.word	_gp
+1:
+	lw	gp, 0(ra)
+
+#if !defined(CONFIG_SKIP_LOWLEVEL_INIT)
+	/* Initialize any external memory.
+	 */
+	la	t9, lowlevel_init
+	jalr	t9
+	nop
+
+	/* Initialize caches...
+	 */
+	la	t9, mips_cache_reset
+	jalr	t9
+	nop
+
+	/* ... and enable them.
+	 */
+	li	t0, CONF_CM_CACHABLE_NONCOHERENT
+	mtc0	t0, CP0_CONFIG
+#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */
+
+	/* Set up temporary stack.
+	 */
+#ifdef CONFIG_SYS_INIT_RAM_LOCK_MIPS
+	li	a0, CONFIG_SYS_INIT_SP_OFFSET
+	la	t9, mips_cache_lock
+	jalr	t9
+	nop
+#endif
+
+	li	t0, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET
+	la	sp, 0(t0)
+
+	la	t9, board_init_f
+	jr	t9
+	nop
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * a0 = addr_sp
+ * a1 = gd
+ * a2 = destination address
+ */
+	.globl	relocate_code
+	.ent	relocate_code
+relocate_code:
+	move	sp, a0		/* Set new stack pointer	*/
+
+	li	t0, CONFIG_SYS_MONITOR_BASE
+	la	t3, in_ram
+	lw	t2, -12(t3)	/* t2 <-- uboot_end_data	*/
+	move	t1, a2
+	move	s2, a2		/* s2 <-- destination address	*/
+
+	/*
+	 * Fix $gp:
+	 *
+	 * New $gp = (Old $gp - CONFIG_SYS_MONITOR_BASE) + Destination Address
+	 */
+	move	t6, gp
+	sub	gp, CONFIG_SYS_MONITOR_BASE
+	add	gp, a2		/* gp now adjusted		*/
+	sub	s1, gp, t6	/* s1 <-- relocation offset	*/
+
+	/*
+	 * t0 = source address
+	 * t1 = target address
+	 * t2 = source end address
+	 */
+
+	/*
+	 * Save destination address and size for later usage in flush_cache()
+	 */
+	move	s0, a1		/* save gd in s0		*/
+	move	a0, t1		/* a0 <-- destination addr	*/
+	sub	a1, t2, t0	/* a1 <-- size			*/
+
+	/* On the purple board we copy the code earlier in a special way
+	 * in order to solve flash problems
+	 */
+#ifndef CONFIG_PURPLE
+1:
+	lw	t3, 0(t0)
+	sw	t3, 0(t1)
+	addu	t0, 4
+	ble	t0, t2, 1b
+	addu	t1, 4		/* delay slot			*/
+#endif
+
+	/* If caches were enabled, we would have to flush them here.
+	 */
+
+	/* a0 & a1 are already set up for flush_cache(start, size) */
+	la	t9, flush_cache
+	jalr	t9
+	nop
+
+	/* Jump to where we've relocated ourselves.
+	 */
+	addi	t0, s2, in_ram - _start
+	jr	t0
+	nop
+
+	.word	_gp
+	.word	_GLOBAL_OFFSET_TABLE_
+	.word	uboot_end_data
+	.word	uboot_end
+	.word	num_got_entries
+
+in_ram:
+	/*
+	 * Now we want to update GOT.
+	 *
+	 * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object
+	 * generated by GNU ld. Skip these reserved entries from relocation.
+	 */
+	lw	t3, -4(t0)	/* t3 <-- num_got_entries	*/
+	lw	t4, -16(t0)	/* t4 <-- _GLOBAL_OFFSET_TABLE_	*/
+	lw	t5, -20(t0)	/* t5 <-- _gp	*/
+	sub	t4, t5		/* compute offset*/
+	add	t4, t4, gp	/* t4 now holds relocated _GLOBAL_OFFSET_TABLE_	*/
+	addi	t4, t4, 8	/* Skipping first two entries.	*/
+	li	t2, 2
+1:
+	lw	t1, 0(t4)
+	beqz	t1, 2f
+	add	t1, s1
+	sw	t1, 0(t4)
+2:
+	addi	t2, 1
+	blt	t2, t3, 1b
+	addi	t4, 4		/* delay slot			*/
+
+	/* Clear BSS.
+	 */
+	lw	t1, -12(t0)	/* t1 <-- uboot_end_data	*/
+	lw	t2, -8(t0)	/* t2 <-- uboot_end		*/
+	add	t1, s1		/* adjust pointers		*/
+	add	t2, s1
+
+	sub	t1, 4
+1:
+	addi	t1, 4
+	bltl	t1, t2, 1b
+	sw	zero, 0(t1)	/* delay slot			*/
+
+	move	a0, s0		/* a0 <-- gd			*/
+	la	t9, board_init_r
+	jr	t9
+	move	a1, s2		/* delay slot			*/
+
+	.end	relocate_code
+
+	/* Exception handlers.
+	 */
+romReserved:
+	b	romReserved
+
+romExcHandle:
+	b	romExcHandle