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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.
This commit is contained in:
Markus Klotzbuecher 2006-05-23 10:33:11 +02:00 committed by Markus Klotzbuecher
parent 3e326ece9e
commit 24e37645e7
6 changed files with 130 additions and 73 deletions
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55
board/delta/delta.c
View File

@ -1,10 +1,6 @@
/*
* (C) Copyright 2002
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
* (C) Copyright 2006
* DENX Software Engineering
*
* 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
*/

2
cpu/pxa/Makefile
View File

@ -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)

71
cpu/pxa/usb.c Normal file
View File

@ -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 */

59
drivers/usb_ohci.c
View File

@ -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;
}

8
drivers/usb_ohci.h
View File

@ -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] = {

8
include/configs/delta.h
View File

@ -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>