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.

board/delta/delta.c

@@ -1,10 +1,6 @@
 /*
- * (C) Copyright 2002
+ * (C) Copyright 2006
- * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ * DENX Software Engineering
- *
- * (C) Copyright 2002
- * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
- * Marius Groeger <mgroeger@sysgo.de>
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -98,53 +94,6 @@ int board_late_init(void)
 	return 0;
 }
 
-
-/* board dependant usb stuff */
-int usb_board_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);	/* udelay(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_board_stop()
-{
-	/* may not want to do this */
-	/* CKENA &= ~(CKENA_2_USBHOST |  CKENA_20_UDC); */
-
-	return 0;
-}
-
-
 /*
  * Magic Key Handling, mainly copied from board/lwmon/lwmon.c
  */

cpu/pxa/Makefile

@@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	= lib$(CPU).a
 
 START	= start.o
-OBJS	= serial.o interrupts.o cpu.o i2c.o pxafb.o mmc.o
+OBJS	= serial.o interrupts.o cpu.o i2c.o pxafb.o mmc.o usb.o
 
 all:	.depend $(START) $(LIB)
 

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 */

drivers/usb_ohci.c

@@ -51,7 +51,10 @@
 #include <usb.h>
 #include "usb_ohci.h"
 
-/* #define OHCI_USE_NPS		/\* force NoPowerSwitching mode *\/ */
+#ifdef CONFIG_ARM920T
+# define OHCI_USE_NPS		/* force NoPowerSwitching mode */
+#endif
+
 #undef OHCI_VERBOSE_DEBUG	/* not always helpful */
 
 /* For initializing controller (mask in an HCFS mode too) */
@@ -310,9 +313,6 @@ static void ohci_dump_roothub (ohci_t *controller, int verbose)
 	ndp = (temp & RH_A_NDP);
 #ifdef CONFIG_AT91C_PQFP_UHPBUG
 	ndp = (ndp == 2) ? 1:0;
-#endif
-#if 0 /* def CONFIG_CPU_MONAHANS */
-		data_buf [2] = (data_buf [2] == 2) ? 3:0;
 #endif
 	if (verbose) {
 		dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp,
@@ -1150,19 +1150,13 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe));
 #ifdef CONFIG_AT91C_PQFP_UHPBUG
 		data_buf [2] = (data_buf [2] == 2) ? 1:0;
 #endif
-#if 0 /* def CONFIG_CPU_MONAHANS */
-		data_buf [2] = (data_buf [2] == 2) ? 3:0;
-#endif
-
 		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;
-#if 1
 		else if (temp & RH_A_OCPM)	/* per-port overcurrent reporting? */
 			data_buf [3] |= 0x8;
-#endif
 
 		/* corresponds to data_buf[4-7] */
 		datab [1] = 0;
@@ -1557,10 +1551,18 @@ static char ohci_inited = 0;
 
 int usb_lowlevel_init(void)
 {
-	/* do board dependant init */
+
+#if CFG_USB_CPU_INIT
+	/* cpu dependant init */
+	if(usb_cpu_init())
+		return -1;
+#endif
+
+#if CFG_USB_BOARD_INIT
+	/*  board dependant init */
 	if(usb_board_init())
 		return -1;
-
+#endif
 	memset (&gohci, 0, sizeof (ohci_t));
 	memset (&urb_priv, 0, sizeof (urb_priv_t));
 
@@ -1588,28 +1590,43 @@ int usb_lowlevel_init(void)
 	gohci.disabled = 1;
 	gohci.sleeping = 0;
 	gohci.irq = -1;
-	gohci.regs = (struct ohci_regs *)OHCI_REGS_BASE;
+	gohci.regs = (struct ohci_regs *)CFG_USB_OHCI_REGS_BASE;
 
 	gohci.flags = 0;
-	gohci.slot_name = "delta/zylonite";
+	gohci.slot_name = CFG_USB_SLOT_NAME;
 
 	if (hc_reset (&gohci) < 0) {
 		hc_release_ohci (&gohci);
 		err ("can't reset usb-%s", gohci.slot_name);
 		/* Initialization failed disable clocks */
-		CKENA &= ~(CKENA_2_USBHOST |  CKENA_20_UDC);
+#if CFG_USB_BOARD_INIT
+		/* board dependant cleanup */
+		usb_board_stop();
+#endif
+
+#if CFG_USB_CPU_INIT
+		/* cpu dependant cleanup */
+		usb_cpu_stop();
+#endif
 		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 */
-		CKENA &= ~(CKENA_2_USBHOST |  CKENA_20_UDC);
+#if CFG_USB_BOARD_INIT
+		/* board dependant cleanup */
+		usb_board_stop();
+#endif
+
+#if CFG_USB_CPU_INIT
+		/* cpu dependant cleanup */
+		usb_cpu_stop();
+#endif
 		return -1;
 	}
 
@@ -1632,9 +1649,17 @@ int usb_lowlevel_stop(void)
 	/* call hc_release_ohci() here ? */
 	hc_reset (&gohci);
 
+#if CFG_USB_BOARD_INIT
 	/* board dependant cleanup */
 	if(usb_board_stop())
 		return -1;
+#endif
+
+#if CFG_USB_CPU_INIT
+	/* cpu dependant cleanup */
+	if(usb_cpu_stop())
+		return -1;
+#endif
 
 	return 0;
 }

drivers/usb_ohci.h

@@ -8,8 +8,16 @@
  */
 
 /* functions for doing board specific setup/cleanup */
+#ifdef CFG_USB_BOARD_INIT
 extern int usb_board_init(void);
 extern int usb_board_stop(void);
+#endif
+
+#ifdef CFG_USB_CPU_INIT
+extern int usb_cpu_init(void);
+extern int usb_cpu_stop(void);
+#endif
+
 
 static int cc_to_error[16] = {
 

include/configs/delta.h

@@ -102,13 +102,17 @@
 				     | CFG_CMD_IMLS))
 #endif
 
-
+/* USB */
 #define CONFIG_USB_OHCI         1
 #define CONFIG_USB_STORAGE      1
 #define CONFIG_DOS_PARTITION    1
 
-#define LITTLEENDIAN            1       /* used by usb_ohci.c  */
+#undef CFG_USB_BOARD_INIT
+#define CFG_USB_CPU_INIT	1
+#define CFG_USB_OHCI_REGS_BASE	OHCI_REGS_BASE
+#define CFG_USB_SLOT_NAME	"delta"
 
+#define LITTLEENDIAN            1       /* used by usb_ohci.c  */
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>