commit 149dded2b178bc0fb62cb6f61b87968d914b580a
author wdenk <wdenk> Wed Sep 10 18:20:28 2003 +0000
committer wdenk <wdenk> Wed Sep 10 18:20:28 2003 +0000
tree 6322023840b11a7210e3030262dc5e6ee42953f0
parent 7152b1d0b3f8beec8c297d64664e41b4c4ef610a

* Add support for USB Mass Storage Devices (BBB)
  (tested with USB memory sticks only)

* Avoid flicker on TRAB's VFD

CHANGELOG

diff --git a/CHANGELOG b/CHANGELOG
index c35ef13..0cb827a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,7 +1,12 @@
 ======================================================================
-Changes for U-Boot 0.4.7:
+Changes for U-Boot 0.4.8:
 ======================================================================
 
+* Add support for USB Mass Storage Devices (BBB)
+  (tested with USB memory sticks only)
+
+* Avoid flicker on TRAB's VFD
+
 * Add support for SK98xx driver
 
 * Add PCI support for SL8245 board
@@ -27,6 +32,10 @@
 * Patch by Yuli Barcohen, 7 Aug 2003:
   check BCSR to detect if the board is configured in PCI mode
 
+======================================================================
+Changes for U-Boot 0.4.7:
+======================================================================
+
 * Patch by Raghu Krishnaprasad, 7 Aug 2003:
   add support for Adder II MPC852T module
 
@@ -263,7 +272,7 @@
   - PIC on LWMON board needs delay after power-on
   - Add missing RSR definitions for MPC8xx
   - Improve log buffer handling: guarantee clean reset after power-on
-  - Add support for EXBITGEN board
+  - Add support for EXBITGEN board (aka "genie")
   - Add support for SL8245 board
 
 * Code cleanup:

MAINTAINERS

diff --git a/MAINTAINERS b/MAINTAINERS
index 2e748ef..20e68a8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -89,6 +89,7 @@
 	TQM8255			MPC8255
 
 	CPU86			MPC8260
+	PM825			MPC8250
 	PM826			MPC8260
 	TQM8260			MPC8260
 

board/mpc8260ads/mpc8260ads.c

diff --git a/board/mpc8260ads/mpc8260ads.c b/board/mpc8260ads/mpc8260ads.c
index 98ae660..14a93be 100644
--- a/board/mpc8260ads/mpc8260ads.c
+++ b/board/mpc8260ads/mpc8260ads.c
@@ -238,7 +238,9 @@
 
 long int initdram (int board_type)
 {
+#if CONFIG_ADSTYPE == CFG_PQ2FADS
 	vu_long *bcsr = (vu_long *)CFG_BCSR;
+#endif
 	volatile immap_t *immap = (immap_t *) CFG_IMMR;
 	volatile memctl8260_t *memctl = &immap->im_memctl;
 	volatile uchar *ramaddr, c = 0xff;

board/trab/trab.c

diff --git a/board/trab/trab.c b/board/trab/trab.c
index 029fbde..71b3cbe 100644
--- a/board/trab/trab.c
+++ b/board/trab/trab.c
@@ -105,6 +105,10 @@
 	gpio->PGUP  = 0x0;
 	gpio->OPENCR= 0x0;
 
+	/* suppress flicker of the VFDs */
+	gpio->MISCCR = 0x40;
+	gpio->PFCON |= (2<<12);
+
 	/* arch number of SAMSUNG-Board */
 	/* MACH_TYPE_SMDK2400 */
 	/* XXX this isn't really correct, but keep it for now */

common/cmd_nand.c

diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index ce7b5ff..60cdd8e 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -38,7 +38,7 @@
 	int eccvalid_pos;	/* position of ECC valid flag inside oob -1 = inactive */
 } oob_config = { {0}, 0, 0};
 
-#undef	NAND_DEBUG
+#define	NAND_DEBUG
 #undef	PSYCHO_DEBUG
 
 /* ****************** WARNING *********************

common/usb_storage.c

diff --git a/common/usb_storage.c b/common/usb_storage.c
index a7944b5..7089036 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -2,8 +2,12 @@
  * (C) Copyright 2001
  * Denis Peter, MPL AG Switzerland
  *
+ * For BBB support (C) Copyright 2003
+ * Gary Jennejohn, DENX Software Engineering <gj@denx.de>
+ *
  * Most of this source has been derived from the Linux USB
- * project.
+ * project. BBB support based on /sys/dev/usb/umass.c from
+ * FreeBSD.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -30,6 +34,13 @@
  * is only tested with a TEAC USB Floppy. Other Massstorages with CBI or CB
  * transport protocoll may work as well.
  */
+/*
+ * New Note:
+ * Support for USB Mass Storage Devices (BBB) has been added. It has
+ * only been tested with USB memory sticks.
+ * Nota bene: if you are using the BBB support with a little-endian
+ * CPU then you MUST define LITTLEENDIAN in the configuration file!
+ */
 
 
 #include <common.h>
@@ -71,6 +82,41 @@
 
 #define US_CBI_ADSC		0
 
+/*
+ * BULK only
+ */
+#define US_BBB_RESET		0xff
+#define US_BBB_GET_MAX_LUN	0xfe
+
+/* Command Block Wrapper */
+typedef struct {
+	__u32		dCBWSignature;
+#	define CBWSIGNATURE	0x43425355
+	__u32		dCBWTag;
+	__u32		dCBWDataTransferLength;
+	__u8		bCBWFlags;
+#	define CBWFLAGS_OUT	0x00
+#	define CBWFLAGS_IN	0x80
+	__u8		bCBWLUN;
+	__u8		bCDBLength;
+#	define CBWCDBLENGTH	16
+	__u8		CBWCDB[CBWCDBLENGTH];
+} umass_bbb_cbw_t;
+#define	UMASS_BBB_CBW_SIZE	31
+static __u32 CBWTag = 0;
+
+/* Command Status Wrapper */
+typedef struct {
+	__u32		dCSWSignature;
+#	define CSWSIGNATURE	0x53425355
+	__u32		dCSWTag;
+	__u32		dCSWDataResidue;
+	__u8		bCSWStatus;
+#	define CSWSTATUS_GOOD	0x0
+#	define CSWSTATUS_FAILED	0x1
+#	define CSWSTATUS_PHASE	0x2
+} umass_bbb_csw_t;
+#define	UMASS_BBB_CSW_SIZE	13
 
 #define USB_MAX_STOR_DEV 5
 static int usb_max_devs; /* number of highest available usb device */
@@ -138,6 +184,9 @@
 	unsigned char i;
 	struct usb_device *dev;
 
+	/* GJ */
+	memset(usb_stor_buf, 0, sizeof(usb_stor_buf));
+
 	if(mode==1) {
 		printf("scanning bus for storage devices...\n");
 	}
@@ -293,6 +342,51 @@
 	return 0;
 }
 
+static int usb_stor_BBB_reset(struct us_data *us)
+{
+	int result;
+	unsigned int pipe;
+
+	/*
+	 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
+	 *
+	 * For Reset Recovery the host shall issue in the following order:
+	 * a) a Bulk-Only Mass Storage Reset
+	 * b) a Clear Feature HALT to the Bulk-In endpoint
+	 * c) a Clear Feature HALT to the Bulk-Out endpoint
+	 *
+	 * This is done in 3 steps.
+	 *
+	 * If the reset doesn't succeed, the device should be port reset.
+	 *
+	 * This comment stolen from FreeBSD's /sys/dev/usb/umass.c.
+	 */
+	USB_STOR_PRINTF("BBB_reset\n");
+	result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
+				 US_BBB_RESET, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				 0, us->ifnum, 0, 0, USB_CNTL_TIMEOUT*5);
+	if((result < 0) && (us->pusb_dev->status & USB_ST_STALLED))
+	{
+		USB_STOR_PRINTF("RESET:stall\n");
+		return -1;
+	}
+	/* long wait for reset */
+	wait_ms(150);
+	USB_STOR_PRINTF("BBB_reset result %d: status %X reset\n",result,us->pusb_dev->status);
+	pipe = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
+	result = usb_clear_halt(us->pusb_dev, pipe);
+	/* long wait for reset */
+	wait_ms(150);
+	USB_STOR_PRINTF("BBB_reset result %d: status %X clearing IN endpoint\n",result,us->pusb_dev->status);
+	/* long wait for reset */
+	pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+	result = usb_clear_halt(us->pusb_dev, pipe);
+	wait_ms(150);
+	USB_STOR_PRINTF("BBB_reset result %d: status %X clearing OUT endpoint\n",result,us->pusb_dev->status);
+	USB_STOR_PRINTF("BBB_reset done\n");
+	return 0;
+}
+
 /* FIXME: this reset function doesn't really reset the port, and it
  * should. Actually it should probably do what it's doing here, and
  * reset the port physically
@@ -320,6 +414,52 @@
 	return 0;
 }
 
+/*
+ * Set up the command for a BBB device. Note that the actual SCSI
+ * command is copied into cbw.CBWCDB.
+ */
+int usb_stor_BBB_comdat(ccb *srb, struct us_data *us)
+{
+	int result;
+	int actlen;
+	int dir_in;
+	unsigned int pipe;
+	umass_bbb_cbw_t cbw;
+
+	dir_in = US_DIRECTION(srb->cmd[0]);
+
+#ifdef BBB_COMDAT_TRACE
+	printf("dir %d lun %d cmdlen %d cmd %p datalen %d pdata %p\n", dir_in, srb->lun, srb->cmdlen, srb->cmd, srb->datalen, srb->pdata);
+	if (srb->cmdlen) {
+		for(result = 0;result < srb->cmdlen;result++)
+			printf("cmd[%d] %#x ", result, srb->cmd[result]);
+		printf("\n");
+	}
+#endif
+	/* sanity checks */
+	if (!(srb->cmdlen <= CBWCDBLENGTH)) {
+		USB_STOR_PRINTF("usb_stor_BBB_comdat:cmdlen too large\n");
+		return -1;
+	}
+
+	/* always OUT to the ep */
+	pipe = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+
+	cbw.dCBWSignature = swap_32(CBWSIGNATURE);
+	cbw.dCBWTag = swap_32(CBWTag++);
+	cbw.dCBWDataTransferLength = swap_32(srb->datalen);
+	cbw.bCBWFlags = (dir_in? CBWFLAGS_IN : CBWFLAGS_OUT);
+	cbw.bCBWLUN = srb->lun;
+	cbw.bCDBLength = srb->cmdlen;
+	/* copy the command data into the CBW command data buffer */
+	/* DST SRC LEN!!! */
+	memcpy(cbw.CBWCDB, srb->cmd, srb->cmdlen);
+	result = usb_bulk_msg(us->pusb_dev, pipe, &cbw, UMASS_BBB_CBW_SIZE, &actlen, USB_CNTL_TIMEOUT*5);
+	if (result < 0)
+		USB_STOR_PRINTF("usb_stor_BBB_comdat:usb_bulk_msg error\n");
+	return result;
+}
+
 /* FIXME: we also need a CBI_command which sets up the completion
  * interrupt, and waits for it
  */
@@ -422,6 +562,134 @@
 #define USB_TRANSPORT_UNKNOWN_RETRY 5
 #define USB_TRANSPORT_NOT_READY_RETRY 10
 
+/* clear a stall on an endpoint - special for BBB devices */
+int usb_stor_BBB_clear_endpt_stall(struct us_data *us, __u8 endpt)
+{
+	int result;
+
+	/* ENDPOINT_HALT = 0, so set value to 0 */
+	result = usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev,0),
+				USB_REQ_CLEAR_FEATURE, USB_RECIP_ENDPOINT,
+				0, endpt, 0, 0, USB_CNTL_TIMEOUT*5);
+	return result;
+}
+
+int usb_stor_BBB_transport(ccb *srb, struct us_data *us)
+{
+	int result, retry;
+	int dir_in;
+	int actlen, data_actlen;
+	unsigned int pipe, pipein, pipeout;
+	umass_bbb_csw_t csw;
+#ifdef BBB_XPORT_TRACE
+	unsigned char *ptr;
+	int index;
+#endif
+
+	dir_in = US_DIRECTION(srb->cmd[0]);
+
+	/* COMMAND phase */
+	USB_STOR_PRINTF("COMMAND phase\n");
+	result = usb_stor_BBB_comdat(srb, us);
+	if (result < 0) {
+		USB_STOR_PRINTF("failed to send CBW status %ld\n",
+			us->pusb_dev->status);
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+	wait_ms(5);
+	pipein = usb_rcvbulkpipe(us->pusb_dev, us->ep_in);
+	pipeout = usb_sndbulkpipe(us->pusb_dev, us->ep_out);
+	/* DATA phase + error handling */
+	USB_STOR_PRINTF("DATA phase\n");
+	data_actlen = 0;
+	/* no data, go immediately to the STATUS phase */
+	if (srb->datalen == 0)
+		goto st;
+	if (dir_in)
+		pipe = pipein;
+	else
+		pipe = pipeout;
+	result = usb_bulk_msg(us->pusb_dev, pipe, srb->pdata, srb->datalen, &data_actlen, USB_CNTL_TIMEOUT*5);
+	/* special handling of STALL in DATA phase */
+	if((result < 0) && (us->pusb_dev->status & USB_ST_STALLED)) {
+		printf("DATA:stall\n");
+		/* clear the STALL on the endpoint */
+		result = usb_stor_BBB_clear_endpt_stall(us, dir_in? us->ep_in : us->ep_out);
+		if (result >= 0)
+			/* continue on to STATUS phase */
+			goto st;
+	}
+	if (result < 0) {
+		USB_STOR_PRINTF("usb_bulk_msg error status %ld\n",
+			us->pusb_dev->status);
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+#ifdef BBB_XPORT_TRACE
+	for (index = 0; index < data_actlen; index++)
+		printf("pdata[%d] %#x ", index, srb->pdata[index]);
+	printf("\n");
+#endif
+	/* STATUS phase + error handling */
+   st:
+	retry = 0;
+   again:
+	USB_STOR_PRINTF("STATUS phase\n");
+	result = usb_bulk_msg(us->pusb_dev, pipein, &csw, UMASS_BBB_CSW_SIZE, &actlen, USB_CNTL_TIMEOUT*5);
+	/* special handling of STALL in STATUS phase */
+	if((result < 0) && (retry < 1) && (us->pusb_dev->status & USB_ST_STALLED)) {
+		USB_STOR_PRINTF("STATUS:stall\n");
+		/* clear the STALL on the endpoint */
+		result = usb_stor_BBB_clear_endpt_stall(us, us->ep_in);
+		if (result >= 0 && (retry++ < 1))
+			/* do a retry */
+			goto again;
+	}
+	if (result < 0) {
+		USB_STOR_PRINTF("usb_bulk_msg error status %ld\n",
+			us->pusb_dev->status);
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+#ifdef BBB_XPORT_TRACE
+	ptr = (unsigned char *)&csw;
+	for (index = 0; index < UMASS_BBB_CSW_SIZE; index++)
+		printf("ptr[%d] %#x ", index, ptr[index]);
+	printf("\n");
+#endif
+	/* misuse pipe to get the residue */
+	pipe = swap_32(csw.dCSWDataResidue);
+	if (pipe == 0 && srb->datalen != 0 && srb->datalen - data_actlen != 0)
+		pipe = srb->datalen - data_actlen;
+	if (CSWSIGNATURE != swap_32(csw.dCSWSignature)) {
+		USB_STOR_PRINTF("!CSWSIGNATURE\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if ((CBWTag - 1) != swap_32(csw.dCSWTag)) {
+		USB_STOR_PRINTF("!Tag\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (csw.bCSWStatus > CSWSTATUS_PHASE) {
+		USB_STOR_PRINTF(">PHASE\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (csw.bCSWStatus == CSWSTATUS_PHASE) {
+		USB_STOR_PRINTF("=PHASE\n");
+		usb_stor_BBB_reset(us);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (data_actlen > srb->datalen) {
+		USB_STOR_PRINTF("transferred %dB instead of %dB\n",
+			data_actlen, srb->datalen);
+		return USB_STOR_TRANSPORT_FAILED;
+	} else if (csw.bCSWStatus == CSWSTATUS_FAILED) {
+		USB_STOR_PRINTF("FAILED\n");
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+
+	return result;
+}
+
 int usb_stor_CB_transport(ccb *srb, struct us_data *us)
 {
 	int result,status;
@@ -495,29 +763,28 @@
 		return USB_STOR_TRANSPORT_GOOD;
 	/* Check the auto request result */
 	switch(srb->sense_buf[2]) {
-		case 0x01: /* Recovered Error */
-			return USB_STOR_TRANSPORT_GOOD;
-		 	break;
-		case 0x02: /* Not Ready */
-			if(notready++ > USB_TRANSPORT_NOT_READY_RETRY) {
-				printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X (NOT READY)\n",
-					srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
-				return USB_STOR_TRANSPORT_FAILED;
-			}
-			else {
-				wait_ms(100);
-				goto do_retry;
-			}
-			break;
-		default:
-			if(retry++ > USB_TRANSPORT_UNKNOWN_RETRY) {
-				printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
-					srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
-				return USB_STOR_TRANSPORT_FAILED;
-			}
-			else
-				goto do_retry;
-			break;
+	case 0x01: /* Recovered Error */
+		return USB_STOR_TRANSPORT_GOOD;
+	 	break;
+	case 0x02: /* Not Ready */
+		if(notready++ > USB_TRANSPORT_NOT_READY_RETRY) {
+			printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X (NOT READY)\n",
+				srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
+			return USB_STOR_TRANSPORT_FAILED;
+		} else {
+			wait_ms(100);
+			goto do_retry;
+		}
+		break;
+	default:
+		if(retry++ > USB_TRANSPORT_UNKNOWN_RETRY) {
+			printf("cmd 0x%02X returned 0x%02X 0x%02X 0x%02X 0x%02X\n",
+				srb->cmd[0],srb->sense_buf[0],srb->sense_buf[2],srb->sense_buf[12],srb->sense_buf[13]);
+			return USB_STOR_TRANSPORT_FAILED;
+		} else {
+			goto do_retry;
+		}
+		break;
 	}
 	return USB_STOR_TRANSPORT_FAILED;
 }
@@ -538,7 +805,8 @@
 		USB_STOR_PRINTF("inquiry returns %d\n",i);
 		if(i==0)
 			break;
-	}while(retry--);
+	} while(retry--);
+
 	if(!retry) {
 		printf("error in inquiry\n");
 		return -1;
@@ -567,17 +835,18 @@
 static int usb_test_unit_ready(ccb *srb,struct us_data *ss)
 {
 	int retries=10;
+
 	do {
 		memset(&srb->cmd[0],0,12);
 		srb->cmd[0]=SCSI_TST_U_RDY;
 		srb->cmd[1]=srb->lun<<5;
 		srb->datalen=0;
 		srb->cmdlen=12;
-		if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD)
-		{
+		if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD) {
 			return 0;
 		}
 	} while(retries--);
+
 	return -1;
 }
 
@@ -594,7 +863,8 @@
 		if(ss->transport(srb,ss)==USB_STOR_TRANSPORT_GOOD) {
 			return 0;
 		}
-	}while(retry--);
+	} while(retry--);
+
 	return -1;
 }
 
@@ -654,8 +924,7 @@
 		srb->pdata=(unsigned char *)buf_addr;
 		if(blks>USB_MAX_READ_BLK) {
 			smallblks=USB_MAX_READ_BLK;
-		}
-		else {
+		} else {
 			smallblks=(unsigned short) blks;
 		}
 retry_it:
@@ -751,6 +1020,11 @@
 		ss->transport = usb_stor_CB_transport;
 		ss->transport_reset = usb_stor_CB_reset;
 		break;
+	case US_PR_BULK:
+		USB_STOR_PRINTF("Bulk/Bulk/Bulk\n");
+		ss->transport = usb_stor_BBB_transport;
+		ss->transport_reset = usb_stor_BBB_reset;
+		break;
 	default:
 		printf("USB Starage Transport unknown / not yet implemented\n");
 		return 0;
@@ -793,15 +1067,14 @@
 		return 0;
 	}
 	/* set class specific stuff */
-	/* We only handle certain protocols.  Currently, this is
-	 * the only one.
+	/* We only handle certain protocols.  Currently, these are
+	 * the only ones.
 	 */
-	if (ss->subclass != US_SC_UFI) {
+	if (ss->subclass != US_SC_UFI && ss->subclass != US_SC_SCSI) {
 		printf("Sorry, protocol %d not yet supported.\n",ss->subclass);
 		return 0;
 	}
-	if(ss->ep_int) /* we had found an interrupt endpoint, prepare irq pipe */
-	{
+	if(ss->ep_int) { /* we had found an interrupt endpoint, prepare irq pipe */
 		/* set up the IRQ pipe and handler */
 
 		ss->irqinterval = (ss->irqinterval > 0) ? ss->irqinterval : 255;
@@ -865,6 +1138,19 @@
 	if(cap[0]>(0x200000 * 10)) /* greater than 10 GByte */
 		cap[0]>>=16;
 #endif
+#ifdef LITTLEENDIAN
+	cap[0] = ((unsigned long)(
+		(((unsigned long)(cap[0]) & (unsigned long)0x000000ffUL) << 24) |
+		(((unsigned long)(cap[0]) & (unsigned long)0x0000ff00UL) <<  8) |
+		(((unsigned long)(cap[0]) & (unsigned long)0x00ff0000UL) >>  8) |
+		(((unsigned long)(cap[0]) & (unsigned long)0xff000000UL) >> 24) ));
+	cap[1] = ((unsigned long)(
+		(((unsigned long)(cap[1]) & (unsigned long)0x000000ffUL) << 24) |
+		(((unsigned long)(cap[1]) & (unsigned long)0x0000ff00UL) <<  8) |
+		(((unsigned long)(cap[1]) & (unsigned long)0x00ff0000UL) >>  8) |
+		(((unsigned long)(cap[1]) & (unsigned long)0xff000000UL) >> 24) ));
+#endif
+	/* this assumes bigendian! */
 	cap[0]+=1;
 	capacity=&cap[0];
 	blksz=&cap[1];
@@ -881,5 +1167,5 @@
 	return 1;
 }
 
-#endif
 #endif /* CONFIG_USB_STORAGE */
+#endif /* CFG_CMD_USB */

cpu/arm920t/Makefile

diff --git a/cpu/arm920t/Makefile b/cpu/arm920t/Makefile
index e5ec81d..605adf3 100644
--- a/cpu/arm920t/Makefile
+++ b/cpu/arm920t/Makefile
@@ -26,7 +26,7 @@
 LIB	= lib$(CPU).a
 
 START	= start.o
-OBJS	= serial.o interrupts.o cpu.o speed.o
+OBJS	= serial.o interrupts.o cpu.o speed.o usb_ohci.o
 
 all:	.depend $(START) $(LIB)
 

cpu/arm920t/usb_ohci.c

diff --git a/cpu/arm920t/usb_ohci.c b/cpu/arm920t/usb_ohci.c
new file mode 100644
index 0000000..41ba233
--- /dev/null
+++ b/cpu/arm920t/usb_ohci.c
@@ -0,0 +1,1553 @@
+/*
+ * URB OHCI HCD (Host Controller Driver) for USB on the S3C2400.
+ *
+ * (C) Copyright 2003
+ * Gary Jennejohn, DENX Software Engineering <gj@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 - you MUST define LITTLEENDIAN in the configuration file for the
+ *     board or this driver will NOT work!
+ * 2 - this driver is intended for use with USB Mass Storage Devices
+ *     (BBB) ONLY. There is NO support for Interrupt or Isochronous pipes!
+ */
+
+#include <common.h>
+/* #include <pci.h> no PCI on the S3C2400 */
+
+#ifdef CONFIG_USB_OHCI
+
+#include <s3c2400.h>
+#include <malloc.h>
+#include <usb.h>
+#include "usb_ohci.h"
+
+#define OHCI_USE_NPS		/* force NoPowerSwitching mode */
+#undef OHCI_VERBOSE_DEBUG	/* not always helpful */
+
+
+/* For initializing controller (mask in an HCFS mode too) */
+#define	OHCI_CONTROL_INIT \
+	(OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE
+
+#define OHCI_UNLINK_TIMEOUT	(CFG_HZ / 10)
+
+#define readl(a) (*((vu_long *)(a)))
+#define writel(a, b) (*((vu_long *)(b)) = ((vu_long)a))
+
+#define min_t(type,x,y) ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
+
+#undef 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)
+#undef 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;
+
+/*-------------------------------------------------------------------------*/
+
+/* 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 (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 (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 ((usb_pipetype(urb_priv->pipe) == PIPE_BULK) && usb_pipeout(urb_priv->pipe)) {
+		for (i = 0; i < len; i++)
+		printf("td->data[%d] %#2x ",i, ((unsigned char *)td->data)[i]);
+		printf("\n");
+	}
+#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 */
+
+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 = 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, 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_pipetype (lurb_priv->pipe) == PIPE_CONTROL &&
+	    ((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 */
+
+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 ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
+		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;
+
+#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); */
+	/* wait for it to complete */
+	timeout = 100;
+	for (;;) {
+		/* check whether the controller is done */
+		stat = hc_interrupt();
+		if (stat < 0) {
+			stat = 1;
+			break;
+		}
+		if (stat >= 0 && stat != 0xff) {
+			/* 0xff is returned for an SF-interrupt */
+			break;
+		}
+		if (--timeout) {
+			wait_ms(1);
+		} else {
+			err("CTL:TIMEOUT");
+			stat = 1;
+			break;
+		}
+	}
+	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)
+		/* 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);
+
+	/* Choose the interrupts we care about now, others later on demand */
+	mask = OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO;
+	writel (mask, &ohci->regs->intrstatus);
+
+#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_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);
+}
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * low level initalisation routine, called from usb.c
+ */
+static char ohci_inited = 0;
+
+int usb_lowlevel_init(void)
+{
+	S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+	S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
+
+        /*
+         * Set the 48 MHz UPLL clocking. Values are taken from
+         * "PLL value selection guide", 6-23, s3c2400_UM.pdf.
+         */
+        clk_power->UPLLCON = ((40 << 12) + (1 << 4) + 2);
+        gpio->MISCCR |= 0x8; /* 1 = use pads related USB for USB host */
+
+        /*
+         * Enable USB host clock.
+         */
+        clk_power->CLKCON |= (1 << 4);
+
+	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 *)S3C24X0_USB_HOST_BASE;
+
+	gohci.flags = 0;
+	gohci.slot_name = "s3c2400";
+
+	if (hc_reset (&gohci) < 0) {
+		hc_release_ohci (&gohci);
+                /* Initialization failed */
+                clk_power->CLKCON &= ~(1 << 4);
+		return -1;
+	}
+
+	/* 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) {
+		err ("can't start usb-%s", gohci.slot_name);
+		hc_release_ohci (&gohci);
+                /* Initialization failed */
+                clk_power->CLKCON &= ~(1 << 4);
+		return -1;
+	}
+
+#ifdef	DEBUG
+	ohci_dump (&gohci, 1);
+#else
+	wait_ms(1);
+#endif
+	ohci_inited = 1;
+	return 0;
+}
+
+int usb_lowlevel_stop(void)
+{
+	S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
+
+	/* 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 */
+	clk_power->CLKCON &= ~(1 << 4);
+	return 0;
+}
+
+#endif /* CONFIG_USB_OHCI */

cpu/arm920t/usb_ohci.h

diff --git a/cpu/arm920t/usb_ohci.h b/cpu/arm920t/usb_ohci.h
new file mode 100644
index 0000000..26b84e6
--- /dev/null
+++ b/cpu/arm920t/usb_ohci.h
@@ -0,0 +1,420 @@
+/*
+ * 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;
+}

cpu/ppc4xx/405gp_enet.c

diff --git a/cpu/ppc4xx/405gp_enet.c b/cpu/ppc4xx/405gp_enet.c
index 9639c92..c222c71 100644
--- a/cpu/ppc4xx/405gp_enet.c
+++ b/cpu/ppc4xx/405gp_enet.c
@@ -83,7 +83,7 @@
 #if defined(CONFIG_405GP) || defined(CONFIG_440) || defined(CONFIG_405EP)
 
 #define EMAC_RESET_TIMEOUT 1000	/* 1000 ms reset timeout */
-#define PHY_AUTONEGOTIATE_TIMEOUT 2000	/* 2000 ms autonegotiate timeout */
+#define PHY_AUTONEGOTIATE_TIMEOUT 4000	/* 4000 ms autonegotiate timeout */
 
 #define NUM_TX_BUFF 1
 /* AS.HARNOIS
@@ -271,18 +271,18 @@
 		puts ("Waiting for PHY auto negotiation to complete");
 		i = 0;
 		while (!(reg_short & PHY_BMSR_AUTN_COMP)) {
-			if ((i++ % 100) == 0)
-				putc ('.');
-			udelay (10000);		/* 10 ms */
-			miiphy_read (CONFIG_PHY_ADDR, PHY_BMSR, &reg_short);
-
 			/*
 			 * Timeout reached ?
 			 */
-			if (i * 10 > PHY_AUTONEGOTIATE_TIMEOUT) {
+			if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
 				puts (" TIMEOUT !\n");
 				break;
 			}
+
+			if ((i++ % 1000) == 0)
+				putc ('.');
+			udelay (1000);	/* 1 ms */
+			miiphy_read (CONFIG_PHY_ADDR, PHY_BMSR, &reg_short);
 		}
 		puts (" done\n");
 		udelay (500000);	/* another 500 ms (results in faster booting) */

disk/part.c

diff --git a/disk/part.c b/disk/part.c
index 97ed918..7bd48e0 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -33,7 +33,9 @@
 #define PRINTF(fmt,args...)
 #endif
 
-#if (CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)
+#if ((CONFIG_COMMANDS & CFG_CMD_IDE)	|| \
+     (CONFIG_COMMANDS & CFG_CMD_SCSI)	|| \
+     (CONFIG_COMMANDS & CFG_CMD_USB)	)
 
 /* ------------------------------------------------------------------------- */
 /*

disk/part_dos.c

diff --git a/disk/part_dos.c b/disk/part_dos.c
index db2c23b..32333c7 100644
--- a/disk/part_dos.c
+++ b/disk/part_dos.c
@@ -35,7 +35,9 @@
 #include <ide.h>
 #include "part_dos.h"
 
-#if ((CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_DOS_PARTITION)
+#if ((CONFIG_COMMANDS & CFG_CMD_IDE)	|| \
+     (CONFIG_COMMANDS & CFG_CMD_SCSI)	|| \
+     (CONFIG_COMMANDS & CFG_CMD_USB)	) && defined(CONFIG_DOS_PARTITION)
 
 /* Convert char[4] in little endian format to the host format integer
  */

drivers/sk98lin/h/ski2c.h

diff --git a/drivers/sk98lin/h/ski2c.h b/drivers/sk98lin/h/ski2c.h
index db2d4e6..5316bba 100644
--- a/drivers/sk98lin/h/ski2c.h
+++ b/drivers/sk98lin/h/ski2c.h
@@ -161,6 +161,8 @@
 /*
  * Define READ and WRITE Constants.
  */
+#undef	I2C_READ		/* just in case */
+#undef	I2C_WRITE		/* just in case */
 #define I2C_READ	0
 #define I2C_WRITE	1
 #define I2C_BURST	1

drivers/sk98lin/skaddr.c

diff --git a/drivers/sk98lin/skaddr.c b/drivers/sk98lin/skaddr.c
index 4677111..f248603 100644
--- a/drivers/sk98lin/skaddr.c
+++ b/drivers/sk98lin/skaddr.c
@@ -218,6 +218,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #ifndef	lint
 static const char SysKonnectFileId[] =
 	"@(#) $Id: skaddr.c,v 1.48 2003/02/12 17:09:37 tschilli Exp $ (C) SysKonnect.";
@@ -1872,3 +1876,4 @@
 }
 #endif	/* __cplusplus */
 
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skcsum.c

diff --git a/drivers/sk98lin/skcsum.c b/drivers/sk98lin/skcsum.c
index 9630fad..0fd7030 100644
--- a/drivers/sk98lin/skcsum.c
+++ b/drivers/sk98lin/skcsum.c
@@ -70,6 +70,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #ifdef SK_USE_CSUM	/* Check if CSUM is to be used. */
 
 #ifndef lint
@@ -921,3 +925,5 @@
 }	/* SkCsEvent */
 
 #endif	/* SK_USE_CSUM */
+
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skge.c

diff --git a/drivers/sk98lin/skge.c b/drivers/sk98lin/skge.c
index 49ef8b3..01a72e1 100644
--- a/drivers/sk98lin/skge.c
+++ b/drivers/sk98lin/skge.c
@@ -340,6 +340,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #include	"h/skversion.h"
 #if 0
 #include	<linux/module.h>
@@ -4862,6 +4866,8 @@
 
 #endif
 
+#endif /* CONFIG_SK98 */
+
 /*
  * Local variables:
  * compile-command: "make"

drivers/sk98lin/skgehwt.c

diff --git a/drivers/sk98lin/skgehwt.c b/drivers/sk98lin/skgehwt.c
index 8996b7f..10c366d 100644
--- a/drivers/sk98lin/skgehwt.c
+++ b/drivers/sk98lin/skgehwt.c
@@ -73,6 +73,10 @@
  ******************************************************************************/
 
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
 	Event queue and dispatcher
 */
@@ -211,4 +215,6 @@
 	SkTimerDone(pAC,Ioc) ;
 }
 
+#endif /* CONFIG_SK98 */
+
 /* End of file */

drivers/sk98lin/skgeinit.c

diff --git a/drivers/sk98lin/skgeinit.c b/drivers/sk98lin/skgeinit.c
index 42a6424..cb6e20f 100644
--- a/drivers/sk98lin/skgeinit.c
+++ b/drivers/sk98lin/skgeinit.c
@@ -393,6 +393,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #include "h/skdrv1st.h"
 #include "h/skdrv2nd.h"
 
@@ -2364,3 +2368,5 @@
 
 	return(0);
 }	/* SkGeInitPort */
+
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skgemib.c

diff --git a/drivers/sk98lin/skgemib.c b/drivers/sk98lin/skgemib.c
index 3f5a7f5..ab85ccd 100644
--- a/drivers/sk98lin/skgemib.c
+++ b/drivers/sk98lin/skgemib.c
@@ -50,6 +50,10 @@
  *	
  ****************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
  * PRIVATE OID handler function prototypes
  */
@@ -1054,3 +1058,4 @@
 		SK_PNMI_RO, Vct, 0},
 };
 
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skgepnmi.c

diff --git a/drivers/sk98lin/skgepnmi.c b/drivers/sk98lin/skgepnmi.c
index 498c85d..d1c1a3e 100644
--- a/drivers/sk98lin/skgepnmi.c
+++ b/drivers/sk98lin/skgepnmi.c
@@ -432,6 +432,10 @@
  ****************************************************************************/
 
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 static const char SysKonnectFileId[] =
 	"@(#) $Id: skgepnmi.c,v 1.102 2002/12/16 14:03:24 tschilli Exp $"
 	" (C) SysKonnect.";
@@ -8303,3 +8307,5 @@
 	}
 
 } /* CheckVctStatus */
+
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skgesirq.c

diff --git a/drivers/sk98lin/skgesirq.c b/drivers/sk98lin/skgesirq.c
index 581368e..c7c04b7 100644
--- a/drivers/sk98lin/skgesirq.c
+++ b/drivers/sk98lin/skgesirq.c
@@ -337,6 +337,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
  *	Special Interrupt handler
  *
@@ -2408,4 +2412,6 @@
 }	/* SkPhyIsrLone */
 #endif /* OTHER_PHY */
 
+#endif /* CONFIG_SK98 */
+
 /* End of File */

drivers/sk98lin/ski2c.c

diff --git a/drivers/sk98lin/ski2c.c b/drivers/sk98lin/ski2c.c
index 671f76e..b262f29 100644
--- a/drivers/sk98lin/ski2c.c
+++ b/drivers/sk98lin/ski2c.c
@@ -228,6 +228,10 @@
  ******************************************************************************/
 
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
  *	I2C Protocol
  */
@@ -1497,3 +1501,5 @@
 }	/* SkI2cEvent*/
 
 #endif	/* !SK_DIAG */
+
+#endif /* CONFIG_SK98 */

drivers/sk98lin/sklm80.c

diff --git a/drivers/sk98lin/sklm80.c b/drivers/sk98lin/sklm80.c
index 51c7cc4..1c96ee3 100644
--- a/drivers/sk98lin/sklm80.c
+++ b/drivers/sk98lin/sklm80.c
@@ -98,6 +98,10 @@
  ******************************************************************************/
 
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
 	LM80 functions
 */
@@ -284,3 +288,5 @@
 	/* Not completed */
 	return(0);
 }
+
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skproc.c

diff --git a/drivers/sk98lin/skproc.c b/drivers/sk98lin/skproc.c
index a23e55c..ecba704 100644
--- a/drivers/sk98lin/skproc.c
+++ b/drivers/sk98lin/skproc.c
@@ -70,6 +70,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #include <linux/proc_fs.h>
 
 #include "h/skdrv1st.h"
@@ -511,5 +515,4 @@
 	return strorg;
 }
 
-
-
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skqueue.c

diff --git a/drivers/sk98lin/skqueue.c b/drivers/sk98lin/skqueue.c
index c279cd1..c9740e3 100644
--- a/drivers/sk98lin/skqueue.c
+++ b/drivers/sk98lin/skqueue.c
@@ -87,6 +87,10 @@
  ******************************************************************************/
 
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
 	Event queue and dispatcher
 */
@@ -233,4 +237,6 @@
 	return(0) ;
 }
 
+#endif /* CONFIG_SK98 */
+
 /* End of file */

drivers/sk98lin/skrlmt.c

diff --git a/drivers/sk98lin/skrlmt.c b/drivers/sk98lin/skrlmt.c
index 26b3f74..1e707c9 100644
--- a/drivers/sk98lin/skrlmt.c
+++ b/drivers/sk98lin/skrlmt.c
@@ -280,6 +280,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #ifndef	lint
 static const char SysKonnectFileId[] =
 	"@(#) $Id: skrlmt.c,v 1.68 2003/01/31 15:26:56 rschmidt Exp $ (C) SysKonnect.";
@@ -3500,3 +3504,5 @@
 #ifdef __cplusplus
 }
 #endif	/* __cplusplus */
+
+#endif /* CONFIG_SK98 */

drivers/sk98lin/sktimer.c

diff --git a/drivers/sk98lin/sktimer.c b/drivers/sk98lin/sktimer.c
index e8894d2..67431d9 100644
--- a/drivers/sk98lin/sktimer.c
+++ b/drivers/sk98lin/sktimer.c
@@ -72,6 +72,10 @@
  ******************************************************************************/
 
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
 	Event queue and dispatcher
 */
@@ -288,4 +292,6 @@
 	}
 }
 
+#endif /* CONFIG_SK98 */
+
 /* End of file */

drivers/sk98lin/skvpd.c

diff --git a/drivers/sk98lin/skvpd.c b/drivers/sk98lin/skvpd.c
index 68c65d1..f4558fa 100644
--- a/drivers/sk98lin/skvpd.c
+++ b/drivers/sk98lin/skvpd.c
@@ -160,6 +160,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 /*
 	Please refer skvpd.txt for infomation how to include this module
  */
@@ -1323,3 +1327,4 @@
 	(void)VpdUpdate(pAC, IoC);
 }
 
+#endif /* CONFIG_SK98 */

drivers/sk98lin/skxmac2.c

diff --git a/drivers/sk98lin/skxmac2.c b/drivers/sk98lin/skxmac2.c
index c339eca..9c87b23 100644
--- a/drivers/sk98lin/skxmac2.c
+++ b/drivers/sk98lin/skxmac2.c
@@ -410,6 +410,10 @@
  *
  ******************************************************************************/
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #include "h/skdrv1st.h"
 #include "h/skdrv2nd.h"
 
@@ -4389,4 +4393,6 @@
 	return(0);
 }	/* SkGmCableDiagStatus */
 
+#endif /* CONFIG_SK98 */
+
 /* End of file */

drivers/sk98lin/uboot_skb.c

diff --git a/drivers/sk98lin/uboot_skb.c b/drivers/sk98lin/uboot_skb.c
index 9d86bea..b87ad16 100644
--- a/drivers/sk98lin/uboot_skb.c
+++ b/drivers/sk98lin/uboot_skb.c
@@ -23,6 +23,10 @@
  * MA 02111-1307 USA
  */
 
+#include <config.h>
+
+#ifdef CONFIG_SK98
+
 #include <common.h>
 #include "u-boot_compat.h"
 
@@ -114,3 +118,5 @@
 {
 	skb->len+=len;
 }
+
+#endif /* CONFIG_SK98 */

include/configs/P3G4.h

diff --git a/include/configs/P3G4.h b/include/configs/P3G4.h
index 17774a3..7712384 100644
--- a/include/configs/P3G4.h
+++ b/include/configs/P3G4.h
@@ -99,6 +99,7 @@
 #define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | \
 				 CONFIG_BOOTP_BOOTFILESIZE)
 
+#define	CONFIG_TIMESTAMP		/* Print image info with timestamp */
 
 #define CONFIG_COMMANDS	(CONFIG_CMD_DFL | CFG_CMD_ASKENV)
 

include/configs/SL8245.h

diff --git a/include/configs/SL8245.h b/include/configs/SL8245.h
index 4b69456..61896d0 100644
--- a/include/configs/SL8245.h
+++ b/include/configs/SL8245.h
@@ -51,6 +51,8 @@
 
 #define CONFIG_BOOTDELAY	5
 
+#define	CONFIG_TIMESTAMP		/* Print image info with timestamp */
+
 #define CONFIG_COMMANDS		(CONFIG_CMD_DFL | CFG_CMD_PCI)
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) 	*/
@@ -68,7 +70,7 @@
 /* Print Buffer Size
  */
 #define CFG_PBSIZE	(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
-#define CFG_MAXARGS	8		/* Max number of command args	*/
+#define CFG_MAXARGS	32		/* Max number of command args	*/
 #define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size	*/
 #define CFG_LOAD_ADDR	0x00400000	/* Default load address		*/
 

include/configs/Sandpoint8240.h

diff --git a/include/configs/Sandpoint8240.h b/include/configs/Sandpoint8240.h
index 799d5d6..5bf184e 100644
--- a/include/configs/Sandpoint8240.h
+++ b/include/configs/Sandpoint8240.h
@@ -46,8 +46,39 @@
 #endif
 
 #define CONFIG_CONS_INDEX	1
-#define CONFIG_BAUDRATE		115200
-#define CONFIG_DRAM_SPEED	100		/* MHz				*/
+#define CONFIG_BAUDRATE		9600
+
+#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
+
+#define	CONFIG_TIMESTAMP		/* Print image info with timestamp */
+
+#define CONFIG_PREBOOT	"echo;"	\
+	"echo Type \"run net_nfs\" to mount root filesystem over NFS;" \
+	"echo"
+
+#undef	CONFIG_BOOTARGS
+
+#define	CONFIG_EXTRA_ENV_SETTINGS					\
+	"netdev=eth0\0"							\
+	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
+		"nfsroot=$(serverip):$(rootpath)\0"			\
+	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
+	"addip=setenv bootargs $(bootargs) "				\
+		"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask)"	\
+		":$(hostname):$(netdev):off panic=1\0"			\
+	"net_self=tftp $(kernel_addr) $(bootfile);"			\
+		"tftp $(ramdisk_addr) $(ramdisk);"			\
+		"run ramargs addip;"					\
+		"bootm $(kernel_addr) $(ramdisk_addr)\0"		\
+	"net_nfs=tftp $(kernel_addr) $(bootfile);"			\
+		"run nfsargs addip;bootm\0"				\
+	"rootpath=/opt/eldk/ppc_82xx\0"					\
+	"bootfile=/tftpboot/SP8240/uImage\0"				\
+	"ramdisk=/tftpboot/SP8240/uRamdisk\0"				\
+	"kernel_addr=200000\0"						\
+	"ramdisk_addr=400000\0"						\
+	""
+#define CONFIG_BOOTCOMMAND	"run flash_self"
 
 #define CONFIG_COMMANDS		( (CONFIG_CMD_DFL & ~CFG_CMD_AUTOSCRIPT) | \
 				  CFG_CMD_ELF    | \
@@ -59,6 +90,7 @@
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any)	*/
 #include <cmd_confdefs.h>
 
+#define CONFIG_DRAM_SPEED	100		/* MHz				*/
 
 /*
  * Miscellaneous configurable options

include/configs/trab.h

diff --git a/include/configs/trab.h b/include/configs/trab.h
index 4c33bdb..d96241a 100644
--- a/include/configs/trab.h
+++ b/include/configs/trab.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2002
+ * (C) Copyright 2002-2003
  * Gary Jennejohn <gj@denx.de>
  *
  * Configuation settings for the TRAB board.
@@ -40,6 +40,7 @@
 #define CONFIG_S3C2400		1	/* in a SAMSUNG S3C2400 SoC	*/
 #define CONFIG_TRAB		1	/* on a TRAB Board		*/
 #undef CONFIG_TRAB_50MHZ		/* run the CPU at 50 MHz	*/
+#define LITTLEENDIAN		1	/* used by usb_ohci.c		*/
 
 /* input clock of PLL */
 #define CONFIG_SYS_CLK_FREQ	12000000 /* TRAB has 12 MHz input clock */
@@ -67,6 +68,11 @@
 #define CFG_EEPROM_PAGE_WRITE_BITS 3	/* 8 bytes page write mode on 24C04 */
 #define CFG_EEPROM_PAGE_WRITE_DELAY_MS 10
 
+/* USB stuff */
+#define CONFIG_USB_OHCI		1
+#define CONFIG_USB_STORAGE	1
+#define CONFIG_DOS_PARTITION	1
+
 /*
  * Size of malloc() pool
  */
@@ -139,6 +145,8 @@
 				 CONFIG_COMMANDS_ADD_HWFLOW	| \
 				 CONFIG_COMMANDS_ADD_VFD	| \
 				 CONFIG_COMMANDS_ADD_EEPROM	| \
+				 CFG_CMD_USB			| \
+				 CFG_CMD_FAT			| \
 				 CONFIG_COMMANDS_I2C		)
 #else
 #define CONFIG_COMMANDS		(CONFIG_CMD_DFL			| \
@@ -147,9 +155,14 @@
 				 CONFIG_COMMANDS_ADD_HWFLOW	| \
 				 CONFIG_COMMANDS_ADD_VFD	| \
 				 CONFIG_COMMANDS_ADD_EEPROM	| \
+				 CFG_CMD_USB			| \
+				 CFG_CMD_FAT			| \
 				 CONFIG_COMMANDS_I2C		)
 #endif
 
+/* moved up */
+#define CFG_HUSH_PARSER		1	/* use "hush" command parser	*/
+
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>
 
@@ -164,6 +177,28 @@
 #define CONFIG_BOOTCOMMAND	"run flash_nfs"
 
 #ifndef CONFIG_BIG_FLASH
+#ifdef CFG_HUSH_PARSER
+#define	CONFIG_EXTRA_ENV_SETTINGS	\
+	"nfs_args=setenv bootargs root=/dev/nfs rw " \
+		"nfsroot=$serverip:$rootpath\0" \
+	"rootpath=/opt/eldk/arm_920TDI\0" \
+	"ram_args=setenv bootargs root=/dev/ram rw\0" \
+	"add_net=setenv bootargs $bootargs ethaddr=$ethaddr " \
+		"ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off\0" \
+	"add_misc=setenv bootargs $bootargs console=ttyS0 panic=1\0" \
+	"load=tftp 0xC100000 /tftpboot/TRAB/u-boot.bin\0" \
+	"update=protect off 1:0-8;era 1:0-8;cp.b 0xc100000 0 $filesize;" \
+		"setenv filesize;saveenv\0" \
+	"loadfile=/tftpboot/TRAB/uImage\0" \
+	"loadaddr=c400000\0" \
+	"net_load=tftpboot $loadaddr $loadfile\0" \
+	"net_nfs=run net_load nfs_args add_net add_misc;bootm\0" \
+	"kernel_addr=00040000\0" \
+	"flash_nfs=run nfs_args add_net add_misc;bootm $kernel_addr\0" \
+	"mdm_init1=ATZ\0" \
+	"mdm_init2=ATS0=1\0" \
+	"mdm_flow_control=rts/cts\0"
+#else /* !CFG_HUSH_PARSER */
 #define	CONFIG_EXTRA_ENV_SETTINGS	\
 	"nfs_args=setenv bootargs root=/dev/nfs rw " \
 		"nfsroot=$(serverip):$(rootpath)\0" \
@@ -184,7 +219,29 @@
 	"mdm_init1=ATZ\0" \
 	"mdm_init2=ATS0=1\0" \
 	"mdm_flow_control=rts/cts\0"
+#endif /* CFG_HUSH_PARSER */
 #else	/* CONFIG_BIG_FLASH */
+#ifdef CFG_HUSH_PARSER
+#define	CONFIG_EXTRA_ENV_SETTINGS	\
+	"nfs_args=setenv bootargs root=/dev/nfs rw " \
+		"nfsroot=$serverip:$rootpath\0" \
+	"rootpath=/opt/eldk/arm_920TDI\0" \
+	"ram_args=setenv bootargs root=/dev/ram rw\0" \
+	"add_net=setenv bootargs $bootargs ethaddr=$ethaddr " \
+		"ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname::off\0" \
+	"add_misc=setenv bootargs $bootargs console=ttyS0 panic=1\0" \
+	"load=tftp 0xC100000 /tftpboot/TRAB/u-boot.bin\0" \
+	"update=protect off 1:0;era 1:0;cp.b 0xc100000 0 $filesize\0" \
+	"loadfile=/tftpboot/TRAB/uImage\0" \
+	"loadaddr=c400000\0" \
+	"net_load=tftpboot $loadaddr $loadfile\0" \
+	"net_nfs=run net_load nfs_args add_net add_misc;bootm\0" \
+	"kernel_addr=00040000\0" \
+	"flash_nfs=run nfs_args add_net add_misc;bootm $kernel_addr\0" \
+	"mdm_init1=ATZ\0" \
+	"mdm_init2=ATS0=1\0" \
+	"mdm_flow_control=rts/cts\0"
+#else /* !CFG_HUSH_PARSER */
 #define	CONFIG_EXTRA_ENV_SETTINGS	\
 	"nfs_args=setenv bootargs root=/dev/nfs rw " \
 		"nfsroot=$(serverip):$(rootpath)\0" \
@@ -204,6 +261,7 @@
 	"mdm_init1=ATZ\0" \
 	"mdm_init2=ATS0=1\0" \
 	"mdm_flow_control=rts/cts\0"
+#endif /* CFG_HUSH_PARSER */
 #endif	/* CONFIG_BIG_FLASH */
 
 #if 0	/* disabled for development */
@@ -223,7 +281,6 @@
  */
 #define	CFG_LONGHELP				/* undef to save memory		*/
 #define	CFG_PROMPT		"TRAB # "	/* Monitor Command Prompt	*/
-/* #define CFG_HUSH_PARSER		1 */	/* use "hush" command parser	*/
 #ifdef	CFG_HUSH_PARSER
 #define CFG_PROMPT_HUSH_PS2	"> "
 #endif

include/usb.h

diff --git a/include/usb.h b/include/usb.h
index edb6120..0008a9a 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -169,7 +169,7 @@
  * this is how the lowlevel part communicate with the outer world
  */
 
-#ifdef CONFIG_USB_UHCI
+#if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI)
 int usb_lowlevel_init(void);
 int usb_lowlevel_stop(void);
 int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len);
@@ -228,6 +228,11 @@
 int usb_set_interface(struct usb_device *dev, int interface, int alternate);
 
 /* big endian -> little endian conversion */
+/* some CPUs are already little endian e.g. the ARM920T */
+#ifdef LITTLEENDIAN
+#define swap_16(x) ((unsigned short)(x))
+#define swap_32(x) ((unsigned long)(x))
+#else
 #define swap_16(x) \
 	((unsigned short)( \
 		(((unsigned short)(x) & (unsigned short)0x00ffU) << 8) | \
@@ -238,6 +243,7 @@
 		(((unsigned long)(x) & (unsigned long)0x0000ff00UL) <<  8) | \
 		(((unsigned long)(x) & (unsigned long)0x00ff0000UL) >>  8) | \
 		(((unsigned long)(x) & (unsigned long)0xff000000UL) >> 24) ))
+#endif /* LITTLEENDIAN */
 
 /*
  * Calling this entity a "pipe" is glorifying it. A USB pipe