More cleanup for the delta board and the generic usb_ohci driver. Added

CFG_USB_BOARD_INIT and CFG_USB_CPU_INIT for enabling board and cpu specific
initialization and cleanup hooks respectively.

cpu/pxa/usb.c

@@ -0,0 +1,71 @@
+/*
+ * (C) Copyright 2006
+ * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/pxa-regs.h>
+
+#ifdef CFG_USB_CPU_INIT
+# ifdef CONFIG_CPU_MONAHANS
+int usb_cpu_init()
+{
+	/* Enable USB host clock. */
+	CKENA |= (CKENA_2_USBHOST |  CKENA_20_UDC);
+	udelay(100);
+
+	/* Configure Port 2 for Host (USB Client Registers) */
+	UP2OCR = 0x3000c;
+
+#if 0
+	GPIO2_2 = 0x801; /* USBHPEN - Alt. Fkt. 1 */
+	GPIO3_2 = 0x801; /* USBHPWR - Alt. Fkt. 1 */
+#endif
+
+	UHCHR |= UHCHR_FHR;
+	wait_ms(11);
+	UHCHR &= ~UHCHR_FHR;
+
+	UHCHR |= UHCHR_FSBIR;
+	while (UHCHR & UHCHR_FSBIR)
+		udelay(1);
+
+#if 0
+	UHCHR |= UHCHR_PCPL; /* USBHPEN is active low */
+	UHCHR |= UHCHR_PSPL; /* USBHPWR is active low */
+#endif
+
+	UHCHR &= ~UHCHR_SSEP0;
+	UHCHR &= ~UHCHR_SSEP1;
+	UHCHR &= ~UHCHR_SSE;
+
+	return 0;
+}
+
+int usb_cpu_stop()
+{
+	/* may not want to do this */
+	/* CKENA &= ~(CKENA_2_USBHOST |  CKENA_20_UDC); */
+
+	return 0;
+}
+# endif /* CONFIG_CPU_MONAHANS */
+#endif /* CFG_USB_CPU_INIT */