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/*
* (C) Copyright 2000, 2001
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* 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 "du405.h"
#include <asm/processor.h>
#include <ppc4xx.h>
#include <4xx_i2c.h>
#include <command.h>
DECLARE_GLOBAL_DATA_PTR;
/*cmd_boot.c*/
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
extern void lxt971_no_sleep(void);
#if 0
#define FPGA_DEBUG
#endif
#if 0
#define FPGA_DEBUG2
#endif
/* fpga configuration data - generated by bin2cc */
const unsigned char fpgadata[] = {
#include "fpgadata.c"
};
/*
* include common fpga code (for esd boards)
*/
#include "../common/fpga.c"
int board_early_init_f (void)
{
int index, len, i;
int status;
#ifdef FPGA_DEBUG
/* set up serial port with default baudrate */
(void) get_clocks ();
gd->baudrate = CONFIG_BAUDRATE;
serial_init ();
console_init_f ();
#endif
/*
* Boot onboard FPGA
*/
status = fpga_boot ((unsigned char *) fpgadata, sizeof (fpgadata));
if (status != 0) {
/* booting FPGA failed */
#ifndef FPGA_DEBUG
/* set up serial port with default baudrate */
(void) get_clocks ();
gd->baudrate = CONFIG_BAUDRATE;
serial_init ();
console_init_f ();
#endif
printf ("\nFPGA: Booting failed ");
switch (status) {
case ERROR_FPGA_PRG_INIT_LOW:
printf ("(Timeout: INIT not low after asserting PROGRAM*)\n ");
break;
case ERROR_FPGA_PRG_INIT_HIGH:
printf ("(Timeout: INIT not high after deasserting PROGRAM*)\n ");
break;
case ERROR_FPGA_PRG_DONE:
printf ("(Timeout: DONE not high after programming FPGA)\n ");
break;
}
/* display infos on fpgaimage */
index = 15;
for (i = 0; i < 4; i++) {
len = fpgadata[index];
printf ("FPGA: %s\n", &(fpgadata[index + 1]));
index += len + 3;
}
putc ('\n');
/* delayed reboot */
for (i = 20; i > 0; i--) {
printf ("Rebooting in %2d seconds \r", i);
for (index = 0; index < 1000; index++)
udelay (1000);
}
putc ('\n');
do_reset (NULL, 0, 0, NULL);
}
/*
* IRQ 0-15 405GP internally generated; active high; level sensitive
* IRQ 16 405GP internally generated; active low; level sensitive
* IRQ 17-24 RESERVED
* IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
* IRQ 26 (EXT IRQ 1) DUART_A; active high; level sensitive
* IRQ 27 (EXT IRQ 2) DUART_B; active high; level sensitive
* IRQ 28 (EXT IRQ 3) unused; active low; level sensitive
* IRQ 29 (EXT IRQ 4) unused; active low; level sensitive
* IRQ 30 (EXT IRQ 5) unused; active low; level sensitive
* IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
*/
mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr (uicer, 0x00000000); /* disable all ints */
mtdcr (uiccr, 0x00000000); /* set all to be non-critical */
mtdcr (uicpr, 0xFFFFFFB1); /* set int polarities */
mtdcr (uictr, 0x10000000); /* set int trigger levels */
mtdcr (uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
/*
* EBC Configuration Register: set ready timeout to 100 us
*/
mtebc (epcr, 0xb8400000);
return 0;
}
int misc_init_r (void)
{
unsigned long cntrl0Reg;
/*
* Setup UART1 handshaking: use CTS instead of DSR
*/
cntrl0Reg = mfdcr(cntrl0);
mtdcr(cntrl0, cntrl0Reg | 0x00001000);
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
int index;
int len;
char str[64];
int i = getenv_r ("serial#", str, sizeof (str));
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming DU405");
} else {
puts (str);
}
puts ("\nFPGA: ");
/* display infos on fpgaimage */
index = 15;
for (i = 0; i < 4; i++) {
len = fpgadata[index];
printf ("%s ", &(fpgadata[index + 1]));
index += len + 3;
}
putc ('\n');
/*
* Reset external DUART via FPGA
*/
*(volatile unsigned char *) FPGA_MODE_REG = 0xff; /* reset high active */
*(volatile unsigned char *) FPGA_MODE_REG = 0x00; /* low again */
return 0;
}
void reset_phy(void)
{
#if defined(CONFIG_LXT971_NO_SLEEP)
/*
* Disable sleep mode in LXT971
*/
lxt971_no_sleep();
#endif
}
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