arm: Remove PXA architecture support

With the last platform for this architecture removed, remove the rest of
the architecture support as well.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

1 files changed, 0 insertions, 703 deletions

diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
deleted file mode 100644
index 583ceb4d55..0000000000
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ /dev/null
@@ -1,703 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * PXA27x USB device driver for u-boot.
- *
- * Copyright (C) 2007 Rodolfo Giometti <giometti@linux.it>
- * Copyright (C) 2007 Eurotech S.p.A.  <info@eurotech.it>
- * Copyright (C) 2008 Vivek Kutal      <vivek.kutal@azingo.com>
- */
-
-
-#include <common.h>
-#include <asm/arch/hardware.h>
-#include <asm/byteorder.h>
-#include <asm/io.h>
-#include <usbdevice.h>
-#include <linux/delay.h>
-#include <usb/pxa27x_udc.h>
-#include <usb/udc.h>
-
-#include "ep0.h"
-
-/* number of endpoints on this UDC */
-#define UDC_MAX_ENDPOINTS	24
-
-static struct urb *ep0_urb;
-static struct usb_device_instance *udc_device;
-static int ep0state = EP0_IDLE;
-
-#ifdef USBDDBG
-static void udc_dump_buffer(char *name, u8 *buf, int len)
-{
-	usbdbg("%s - buf %p, len %d", name, buf, len);
-	print_buffer(0, buf, 1, len, 0);
-}
-#else
-#define udc_dump_buffer(name, buf, len)		/* void */
-#endif
-
-static inline void udc_ack_int_UDCCR(int mask)
-{
-	writel(readl(USIR1) | mask, USIR1);
-}
-
-/*
- * If the endpoint has an active tx_urb, then the next packet of data from the
- * URB is written to the tx FIFO.
- * The total amount of data in the urb is given by urb->actual_length.
- * The maximum amount of data that can be sent in any one packet is given by
- * endpoint->tx_packetSize.
- * The number of data bytes from this URB that have already been transmitted
- * is given by endpoint->sent.
- * endpoint->last is updated by this routine with the number of data bytes
- * transmitted in this packet.
- */
-static int udc_write_urb(struct usb_endpoint_instance *endpoint)
-{
-	struct urb *urb = endpoint->tx_urb;
-	int ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
-	u32 *data32 = (u32 *) urb->buffer;
-	u8  *data8 = (u8 *) urb->buffer;
-	unsigned int i, n, w, b, is_short;
-	int timeout = 2000;	/* 2ms */
-
-	if (!urb || !urb->actual_length)
-		return -1;
-
-	n = min_t(unsigned int, urb->actual_length - endpoint->sent,
-		  endpoint->tx_packetSize);
-	if (n <= 0)
-		return -1;
-
-	usbdbg("write urb on ep %d", ep_num);
-#if defined(USBDDBG) && defined(USBDPARANOIA)
-	usbdbg("urb: buf %p, buf_len %d, actual_len %d",
-		urb->buffer, urb->buffer_length, urb->actual_length);
-	usbdbg("endpoint: sent %d, tx_packetSize %d, last %d",
-		endpoint->sent, endpoint->tx_packetSize, endpoint->last);
-#endif
-
-	is_short = n != endpoint->tx_packetSize;
-	w = n / 4;
-	b = n % 4;
-	usbdbg("n %d%s w %d b %d", n, is_short ? "-s" : "", w, b);
-	udc_dump_buffer("urb write", data8 + endpoint->sent, n);
-
-	/* Prepare for data send */
-	if (ep_num)
-		writel(UDCCSR_PC ,UDCCSN(ep_num));
-
-	for (i = 0; i < w; i++)
-		  writel(data32[endpoint->sent / 4 + i], UDCDN(ep_num));
-
-	for (i = 0; i < b; i++)
-		  writeb(data8[endpoint->sent + w * 4 + i], UDCDN(ep_num));
-
-	/* Set "Packet Complete" if less data then tx_packetSize */
-	if (is_short)
-		writel(ep_num ? UDCCSR_SP : UDCCSR0_IPR, UDCCSN(ep_num));
-
-	/* Wait for data sent */
-	if (ep_num) {
-		while (!(readl(UDCCSN(ep_num)) & UDCCSR_PC)) {
-			if (timeout-- == 0)
-				return -1;
-			else
-				udelay(1);
-		}
-	}
-
-	endpoint->last = n;
-
-	if (ep_num) {
-		usbd_tx_complete(endpoint);
-	} else {
-		endpoint->sent += n;
-		endpoint->last -= n;
-	}
-
-	if (endpoint->sent >= urb->actual_length) {
-		urb->actual_length = 0;
-		endpoint->sent = 0;
-		endpoint->last = 0;
-	}
-
-	if ((endpoint->sent >= urb->actual_length) && (!ep_num)) {
-		usbdbg("ep0 IN stage done");
-		if (is_short)
-			ep0state = EP0_IDLE;
-		else
-			ep0state = EP0_XFER_COMPLETE;
-	}
-
-	return 0;
-}
-
-static int udc_read_urb(struct usb_endpoint_instance *endpoint)
-{
-	struct urb *urb = endpoint->rcv_urb;
-	int ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
-	u32 *data32 = (u32 *) urb->buffer;
-	unsigned int i, n;
-
-	usbdbg("read urb on ep %d", ep_num);
-#if defined(USBDDBG) && defined(USBDPARANOIA)
-	usbdbg("urb: buf %p, buf_len %d, actual_len %d",
-		urb->buffer, urb->buffer_length, urb->actual_length);
-	usbdbg("endpoint: rcv_packetSize %d",
-		endpoint->rcv_packetSize);
-#endif
-
-	if (readl(UDCCSN(ep_num)) & UDCCSR_BNE)
-		n = readl(UDCBCN(ep_num)) & 0x3ff;
-	else /* zlp */
-		n = 0;
-
-	usbdbg("n %d%s", n, n != endpoint->rcv_packetSize ? "-s" : "");
-	for (i = 0; i < n; i += 4)
-		data32[urb->actual_length / 4 + i / 4] = readl(UDCDN(ep_num));
-
-	udc_dump_buffer("urb read", (u8 *) data32, urb->actual_length + n);
-	usbd_rcv_complete(endpoint, n, 0);
-
-	return 0;
-}
-
-static int udc_read_urb_ep0(void)
-{
-	u32 *data32 = (u32 *) ep0_urb->buffer;
-	u8 *data8 = (u8 *) ep0_urb->buffer;
-	unsigned int i, n, w, b;
-
-	usbdbg("read urb on ep 0");
-#if defined(USBDDBG) && defined(USBDPARANOIA)
-	usbdbg("urb: buf %p, buf_len %d, actual_len %d",
-		ep0_urb->buffer, ep0_urb->buffer_length, ep0_urb->actual_length);
-#endif
-
-	n = readl(UDCBCR0);
-	w = n / 4;
-	b = n % 4;
-
-	for (i = 0; i < w; i++) {
-		data32[ep0_urb->actual_length / 4 + i] = readl(UDCDN(0));
-		/* ep0_urb->actual_length += 4; */
-	}
-
-	for (i = 0; i < b; i++) {
-		data8[ep0_urb->actual_length + w * 4 + i] = readb(UDCDN(0));
-		/* ep0_urb->actual_length++; */
-	}
-
-	ep0_urb->actual_length += n;
-
-	udc_dump_buffer("urb read", (u8 *) data32, ep0_urb->actual_length);
-
-	writel(UDCCSR0_OPC | UDCCSR0_IPR, UDCCSR0);
-	if (ep0_urb->actual_length == ep0_urb->device_request.wLength)
-		return 1;
-
-	return 0;
-}
-
-static void udc_handle_ep0(struct usb_endpoint_instance *endpoint)
-{
-	u32 udccsr0 = readl(UDCCSR0);
-	u32 *data = (u32 *) &ep0_urb->device_request;
-	int i;
-
-	usbdbg("udccsr0 %x", udccsr0);
-
-	/* Clear stall status */
-	if (udccsr0 & UDCCSR0_SST) {
-		usberr("clear stall status");
-		writel(UDCCSR0_SST, UDCCSR0);
-		ep0state = EP0_IDLE;
-	}
-
-	/* previous request unfinished?  non-error iff back-to-back ... */
-	if ((udccsr0 & UDCCSR0_SA) != 0 && ep0state != EP0_IDLE)
-		ep0state = EP0_IDLE;
-
-	switch (ep0state) {
-
-	case EP0_IDLE:
-		udccsr0 = readl(UDCCSR0);
-		/* Start control request? */
-		if ((udccsr0 & (UDCCSR0_OPC | UDCCSR0_SA | UDCCSR0_RNE))
-			== (UDCCSR0_OPC | UDCCSR0_SA | UDCCSR0_RNE)) {
-
-			/* Read SETUP packet.
-			 * SETUP packet size is 8 bytes (aka 2 words)
-			 */
-			usbdbg("try reading SETUP packet");
-			for (i = 0; i < 2; i++) {
-				if ((readl(UDCCSR0) & UDCCSR0_RNE) == 0) {
-					usberr("setup packet too short:%d", i);
-					goto stall;
-				}
-				data[i] = readl(UDCDR0);
-			}
-
-			writel(readl(UDCCSR0) | UDCCSR0_OPC | UDCCSR0_SA, UDCCSR0);
-			if ((readl(UDCCSR0) & UDCCSR0_RNE) != 0) {
-				usberr("setup packet too long");
-				goto stall;
-			}
-
-			udc_dump_buffer("ep0 setup read", (u8 *) data, 8);
-
-			if (ep0_urb->device_request.wLength == 0) {
-				usbdbg("Zero Data control Packet\n");
-				if (ep0_recv_setup(ep0_urb)) {
-					usberr("Invalid Setup Packet\n");
-					udc_dump_buffer("ep0 setup read",
-								(u8 *)data, 8);
-					goto stall;
-				}
-				writel(UDCCSR0_IPR, UDCCSR0);
-				ep0state = EP0_IDLE;
-			} else {
-				/* Check direction */
-				if ((ep0_urb->device_request.bmRequestType &
-						USB_REQ_DIRECTION_MASK)
-						== USB_REQ_HOST2DEVICE) {
-					ep0state = EP0_OUT_DATA;
-					ep0_urb->buffer =
-						(u8 *)ep0_urb->buffer_data;
-					ep0_urb->buffer_length =
-						sizeof(ep0_urb->buffer_data);
-					ep0_urb->actual_length = 0;
-					writel(UDCCSR0_IPR, UDCCSR0);
-				} else {
-					/* The ep0_recv_setup function has
-					 * already placed our response packet
-					 * data in ep0_urb->buffer and the
-					 * packet length in
-					 * ep0_urb->actual_length.
-					 */
-					if (ep0_recv_setup(ep0_urb)) {
-stall:
-						usberr("Invalid setup packet");
-						udc_dump_buffer("ep0 setup read"
-							, (u8 *) data, 8);
-						ep0state = EP0_IDLE;
-
-						writel(UDCCSR0_SA |
-						UDCCSR0_OPC | UDCCSR0_FST |
-						UDCCS0_FTF, UDCCSR0);
-
-						return;
-					}
-
-					endpoint->tx_urb = ep0_urb;
-					endpoint->sent = 0;
-					usbdbg("EP0_IN_DATA");
-					ep0state = EP0_IN_DATA;
-					if (udc_write_urb(endpoint) < 0)
-						goto stall;
-
-				}
-			}
-			return;
-		} else if ((udccsr0 & (UDCCSR0_OPC | UDCCSR0_SA))
-			== (UDCCSR0_OPC|UDCCSR0_SA)) {
-			usberr("Setup Active but no data. Stalling ....\n");
-			goto stall;
-		} else {
-			usbdbg("random early IRQs");
-			/* Some random early IRQs:
-			 * - we acked FST
-			 * - IPR cleared
-			 * - OPC got set, without SA (likely status stage)
-			 */
-			writel(udccsr0 & (UDCCSR0_SA | UDCCSR0_OPC), UDCCSR0);
-		}
-		break;
-
-	case EP0_OUT_DATA:
-
-		if ((udccsr0 & UDCCSR0_OPC) && !(udccsr0 & UDCCSR0_SA)) {
-			if (udc_read_urb_ep0()) {
-read_complete:
-				ep0state = EP0_IDLE;
-				if (ep0_recv_setup(ep0_urb)) {
-					/* Not a setup packet, stall next
-					 * EP0 transaction
-					 */
-					udc_dump_buffer("ep0 setup read",
-							(u8 *) data, 8);
-					usberr("can't parse setup packet\n");
-					goto stall;
-				}
-			}
-		} else if (!(udccsr0 & UDCCSR0_OPC) &&
-				!(udccsr0 & UDCCSR0_IPR)) {
-			if (ep0_urb->device_request.wLength ==
-				ep0_urb->actual_length)
-				goto read_complete;
-
-			usberr("Premature Status\n");
-			ep0state = EP0_IDLE;
-		}
-		break;
-
-	case EP0_IN_DATA:
-		/* GET_DESCRIPTOR etc */
-		if (udccsr0 & UDCCSR0_OPC) {
-			writel(UDCCSR0_OPC | UDCCSR0_FTF, UDCCSR0);
-			usberr("ep0in premature status");
-			ep0state = EP0_IDLE;
-		} else {
-			/* irq was IPR clearing */
-			if (udc_write_urb(endpoint) < 0) {
-				usberr("ep0_write_error\n");
-				goto stall;
-			}
-		}
-		break;
-
-	case EP0_XFER_COMPLETE:
-		writel(UDCCSR0_IPR, UDCCSR0);
-		ep0state = EP0_IDLE;
-		break;
-
-	default:
-		usbdbg("Default\n");
-	}
-	writel(USIR0_IR0, USIR0);
-}
-
-static void udc_handle_ep(struct usb_endpoint_instance *endpoint)
-{
-	int ep_addr = endpoint->endpoint_address;
-	int ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
-	int ep_isout = (ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT;
-
-	u32 flags = readl(UDCCSN(ep_num)) & (UDCCSR_SST | UDCCSR_TRN);
-	if (flags)
-		writel(flags, UDCCSN(ep_num));
-
-	if (ep_isout)
-		udc_read_urb(endpoint);
-	else
-		udc_write_urb(endpoint);
-
-	writel(UDCCSR_PC, UDCCSN(ep_num));
-}
-
-static void udc_state_changed(void)
-{
-
-	writel(readl(UDCCR) | UDCCR_SMAC, UDCCR);
-
-	usbdbg("New UDC settings are: conf %d - inter %d - alter %d",
-	       (readl(UDCCR) & UDCCR_ACN) >> UDCCR_ACN_S,
-	       (readl(UDCCR) & UDCCR_AIN) >> UDCCR_AIN_S,
-	       (readl(UDCCR) & UDCCR_AAISN) >> UDCCR_AAISN_S);
-
-	usbd_device_event_irq(udc_device, DEVICE_CONFIGURED, 0);
-	writel(UDCISR1_IRCC, UDCISR1);
-}
-
-void udc_irq(void)
-{
-	int handled;
-	struct usb_endpoint_instance *endpoint;
-	int ep_num, i;
-	u32 udcisr0;
-
-	do {
-		handled = 0;
-		/* Suspend Interrupt Request */
-		if (readl(USIR1) & UDCCR_SUSIR) {
-			usbdbg("Suspend\n");
-			udc_ack_int_UDCCR(UDCCR_SUSIR);
-			handled = 1;
-			ep0state = EP0_IDLE;
-		}
-
-		/* Resume Interrupt Request */
-		if (readl(USIR1) & UDCCR_RESIR) {
-			udc_ack_int_UDCCR(UDCCR_RESIR);
-			handled = 1;
-			usbdbg("USB resume\n");
-		}
-
-		if (readl(USIR1) & (1<<31)) {
-			handled = 1;
-			udc_state_changed();
-		}
-
-		/* Reset Interrupt Request */
-		if (readl(USIR1) & UDCCR_RSTIR) {
-			udc_ack_int_UDCCR(UDCCR_RSTIR);
-			handled = 1;
-			usbdbg("Reset\n");
-			usbd_device_event_irq(udc_device, DEVICE_RESET, 0);
-		} else {
-			if (readl(USIR0))
-				usbdbg("UISR0: %x \n", readl(USIR0));
-
-			if (readl(USIR0) & 0x2)
-				writel(0x2, USIR0);
-
-			/* Control traffic */
-			if (readl(USIR0)  & USIR0_IR0) {
-				handled = 1;
-				writel(USIR0_IR0, USIR0);
-				udc_handle_ep0(udc_device->bus->endpoint_array);
-			}
-
-			endpoint = udc_device->bus->endpoint_array;
-			for (i = 0; i < udc_device->bus->max_endpoints; i++) {
-				ep_num = (endpoint[i].endpoint_address) &
-						USB_ENDPOINT_NUMBER_MASK;
-				if (!ep_num)
-					continue;
-				udcisr0 = readl(UDCISR0);
-				if (udcisr0 &
-					UDCISR_INT(ep_num, UDC_INT_PACKETCMP)) {
-					writel(UDCISR_INT(ep_num, UDC_INT_PACKETCMP),
-					       UDCISR0);
-					udc_handle_ep(&endpoint[i]);
-				}
-			}
-		}
-
-	} while (handled);
-}
-
-/* The UDCCR reg contains mask and interrupt status bits,
- * so using '|=' isn't safe as it may ack an interrupt.
- */
-#define UDCCR_OEN		(1 << 31)   /* On-the-Go Enable */
-#define UDCCR_MASK_BITS		(UDCCR_OEN | UDCCR_UDE)
-
-static inline void udc_set_mask_UDCCR(int mask)
-{
-    writel((readl(UDCCR) & UDCCR_MASK_BITS) | (mask & UDCCR_MASK_BITS), UDCCR);
-}
-
-static inline void udc_clear_mask_UDCCR(int mask)
-{
-    writel((readl(UDCCR) & UDCCR_MASK_BITS) & ~(mask & UDCCR_MASK_BITS), UDCCR);
-}
-
-static void pio_irq_enable(int ep_num)
-{
-	if (ep_num < 16)
-		writel(readl(UDCICR0) | 3 << (ep_num * 2), UDCICR0);
-	else {
-		ep_num -= 16;
-		writel(readl(UDCICR1) | 3 << (ep_num * 2), UDCICR1);
-	}
-}
-
-/*
- * udc_set_nak
- *
- * Allow upper layers to signal lower layers should not accept more RX data
- */
-void udc_set_nak(int ep_num)
-{
-	/* TODO */
-}
-
-/*
- * udc_unset_nak
- *
- * Suspend sending of NAK tokens for DATA OUT tokens on a given endpoint.
- * Switch off NAKing on this endpoint to accept more data output from host.
- */
-void udc_unset_nak(int ep_num)
-{
-	/* TODO */
-}
-
-int udc_endpoint_write(struct usb_endpoint_instance *endpoint)
-{
-	return udc_write_urb(endpoint);
-}
-
-/* Associate a physical endpoint with endpoint instance */
-void udc_setup_ep(struct usb_device_instance *device, unsigned int id,
-				struct usb_endpoint_instance *endpoint)
-{
-	int ep_num, ep_addr, ep_isout, ep_type, ep_size;
-	int config, interface, alternate;
-	u32 tmp;
-
-	usbdbg("setting up endpoint id %d", id);
-
-	if (!endpoint) {
-		usberr("endpoint void!");
-		return;
-	}
-
-	ep_num = endpoint->endpoint_address & USB_ENDPOINT_NUMBER_MASK;
-	if (ep_num >= UDC_MAX_ENDPOINTS) {
-		usberr("unable to setup ep %d!", ep_num);
-		return;
-	}
-
-	pio_irq_enable(ep_num);
-	if (ep_num == 0) {
-		/* Done for ep0 */
-		return;
-	}
-
-	config = 1;
-	interface = 0;
-	alternate = 0;
-
-	usbdbg("config %d - interface %d - alternate %d",
-		config, interface, alternate);
-
-	ep_addr = endpoint->endpoint_address;
-	ep_num = ep_addr & USB_ENDPOINT_NUMBER_MASK;
-	ep_isout = (ep_addr & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT;
-	ep_type = ep_isout ? endpoint->rcv_attributes : endpoint->tx_attributes;
-	ep_size = ep_isout ? endpoint->rcv_packetSize : endpoint->tx_packetSize;
-
-	usbdbg("addr %x, num %d, dir %s, type %s, packet size %d",
-		ep_addr, ep_num,
-		ep_isout ? "out" : "in",
-		ep_type == USB_ENDPOINT_XFER_ISOC ? "isoc" :
-		ep_type == USB_ENDPOINT_XFER_BULK ? "bulk" :
-		ep_type == USB_ENDPOINT_XFER_INT ? "int" : "???",
-		ep_size
-		);
-
-	/* Configure UDCCRx */
-	tmp = 0;
-	tmp |= (config << UDCCONR_CN_S) & UDCCONR_CN;
-	tmp |= (interface << UDCCONR_IN_S) & UDCCONR_IN;
-	tmp |= (alternate << UDCCONR_AISN_S) & UDCCONR_AISN;
-	tmp |= (ep_num << UDCCONR_EN_S) & UDCCONR_EN;
-	tmp |= (ep_type << UDCCONR_ET_S) & UDCCONR_ET;
-	tmp |= ep_isout ? 0 : UDCCONR_ED;
-	tmp |= (ep_size << UDCCONR_MPS_S) & UDCCONR_MPS;
-	tmp |= UDCCONR_EE;
-
-	writel(tmp, UDCCN(ep_num));
-
-	usbdbg("UDCCR%c = %x", 'A' + ep_num-1, readl(UDCCN(ep_num)));
-	usbdbg("UDCCSR%c = %x", 'A' + ep_num-1, readl(UDCCSN(ep_num)));
-}
-
-/* Connect the USB device to the bus */
-void udc_connect(void)
-{
-	usbdbg("UDC connect");
-
-#ifdef CONFIG_USB_DEV_PULLUP_GPIO
-	/* Turn on the USB connection by enabling the pullup resistor */
-	writel(readl(GPDR(CONFIG_USB_DEV_PULLUP_GPIO))
-		     | GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO),
-	       GPDR(CONFIG_USB_DEV_PULLUP_GPIO));
-	writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPSR(CONFIG_USB_DEV_PULLUP_GPIO));
-#else
-	/* Host port 2 transceiver D+ pull up enable */
-	writel(readl(UP2OCR) | UP2OCR_DPPUE, UP2OCR);
-#endif
-}
-
-/* Disconnect the USB device to the bus */
-void udc_disconnect(void)
-{
-	usbdbg("UDC disconnect");
-
-#ifdef CONFIG_USB_DEV_PULLUP_GPIO
-	/* Turn off the USB connection by disabling the pullup resistor */
-	writel(GPIO_bit(CONFIG_USB_DEV_PULLUP_GPIO), GPCR(CONFIG_USB_DEV_PULLUP_GPIO));
-#else
-	/* Host port 2 transceiver D+ pull up disable */
-	writel(readl(UP2OCR) & ~UP2OCR_DPPUE, UP2OCR);
-#endif
-}
-
-/* Switch on the UDC */
-void udc_enable(struct usb_device_instance *device)
-{
-
-	ep0state = EP0_IDLE;
-
-	/* enable endpoint 0, A, B's Packet Complete Interrupt. */
-	writel(0xffffffff, UDCICR0);
-	writel(0xa8000000, UDCICR1);
-
-	/* clear the interrupt status/control registers */
-	writel(0xffffffff, UDCISR0);
-	writel(0xffffffff, UDCISR1);
-
-	/* set UDC-enable */
-	udc_set_mask_UDCCR(UDCCR_UDE);
-
-	udc_device = device;
-	if (!ep0_urb)
-		ep0_urb = usbd_alloc_urb(udc_device,
-				udc_device->bus->endpoint_array);
-	else
-		usbinfo("ep0_urb %p already allocated", ep0_urb);
-
-	usbdbg("UDC Enabled\n");
-}
-
-/* Need to check this again */
-void udc_disable(void)
-{
-	usbdbg("disable UDC");
-
-	udc_clear_mask_UDCCR(UDCCR_UDE);
-
-	/* Disable clock for USB device */
-	writel(readl(CKEN) & ~CKEN11_USB, CKEN);
-
-	/* Free ep0 URB */
-	if (ep0_urb) {
-		usbd_dealloc_urb(ep0_urb);
-		ep0_urb = NULL;
-	}
-
-	/* Reset device pointer */
-	udc_device = NULL;
-}
-
-/* Allow udc code to do any additional startup */
-void udc_startup_events(struct usb_device_instance *device)
-{
-	/* The DEVICE_INIT event puts the USB device in the state STATE_INIT */
-	usbd_device_event_irq(device, DEVICE_INIT, 0);
-
-	/* The DEVICE_CREATE event puts the USB device in the state
-	 * STATE_ATTACHED */
-	usbd_device_event_irq(device, DEVICE_CREATE, 0);
-
-	/* Some USB controller driver implementations signal
-	 * DEVICE_HUB_CONFIGURED and DEVICE_RESET events here.
-	 * DEVICE_HUB_CONFIGURED causes a transition to the state
-	 * STATE_POWERED, and DEVICE_RESET causes a transition to
-	 * the state STATE_DEFAULT.
-	 */
-	udc_enable(device);
-}
-
-/* Initialize h/w stuff */
-int udc_init(void)
-{
-	udc_device = NULL;
-	usbdbg("PXA27x usbd start");
-
-	/* Enable clock for USB device */
-	writel(readl(CKEN) | CKEN11_USB, CKEN);
-
-	/* Disable the UDC */
-	udc_clear_mask_UDCCR(UDCCR_UDE);
-
-	/* Disable IRQs: we don't use them */
-	writel(0, UDCICR0);
-	writel(0, UDCICR1);
-
-	return 0;
-}