82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
|
|
* (C) Copyright 2004
|
|
* Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.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 <mpc8xx.h>
|
|
#include "../common/kup.h"
|
|
|
|
|
|
#define SL811_ADR (0x50000000)
|
|
#define SL811_DAT (0x50000001)
|
|
|
|
|
|
static void sl811_write_index_data (__u8 index, __u8 data)
|
|
{
|
|
*(volatile unsigned char *) (SL811_ADR) = index;
|
|
__asm__ ("eieio");
|
|
*(volatile unsigned char *) (SL811_DAT) = data;
|
|
__asm__ ("eieio");
|
|
}
|
|
|
|
static __u8 sl811_read_index_data (__u8 index)
|
|
{
|
|
__u8 data;
|
|
|
|
*(volatile unsigned char *) (SL811_ADR) = index;
|
|
__asm__ ("eieio");
|
|
data = *(volatile unsigned char *) (SL811_DAT);
|
|
__asm__ ("eieio");
|
|
return (data);
|
|
}
|
|
|
|
int usb_init_kup4x (void)
|
|
{
|
|
volatile immap_t *immap = (immap_t *) CFG_IMMR;
|
|
volatile memctl8xx_t *memctl = &immap->im_memctl;
|
|
int i;
|
|
unsigned char tmp;
|
|
|
|
memctl = &immap->im_memctl;
|
|
memctl->memc_or7 = 0xFFFF8726;
|
|
memctl->memc_br7 = 0x50000401; /* start at 0x50000000 */
|
|
/* BP 14 low = USB ON */
|
|
immap->im_cpm.cp_pbdat &= ~(BP_USB_VCC);
|
|
/* PB 14 nomal port */
|
|
immap->im_cpm.cp_pbpar &= ~(BP_USB_VCC);
|
|
/* output */
|
|
immap->im_cpm.cp_pbdir |= (BP_USB_VCC);
|
|
|
|
puts ("USB: ");
|
|
|
|
for (i = 0x10; i < 0xff; i++) {
|
|
sl811_write_index_data (i, i);
|
|
tmp = (sl811_read_index_data (i));
|
|
if (tmp != i) {
|
|
printf ("SL811 compare error index=0x%02x read=0x%02x\n", i, tmp);
|
|
return (-1);
|
|
}
|
|
}
|
|
printf ("SL811 ready\n");
|
|
return (0);
|
|
}
|