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/*
* (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);
}
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