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/*
* (C) Copyright 2001-2003
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <command.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
int board_early_init_f (void)
{
/*
* 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) SER0 ; active low; level sensitive
* IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
* IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
* IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
* IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
* IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
*/
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr(UIC0ER, 0x00000000); /* disable all ints */
mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
/*
* EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
*/
mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
/*
* Reset CPLD via GPIO13 (CS4) pin
*/
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~(0x80000000 >> 13));
udelay(1000); /* wait 1ms */
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | (0x80000000 >> 13));
udelay(1000); /* wait 1ms */
return 0;
}
int misc_init_r (void)
{
/* adjust flash start and offset */
gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
gd->bd->bi_flashoffset = 0;
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
char str[64];
int i = getenv_f("serial#", str, sizeof(str));
unsigned char trans[16] = {0x0,0x8,0x4,0xc,0x2,0xa,0x6,0xe,
0x1,0x9,0x5,0xd,0x3,0xb,0x7,0xf};
unsigned char id1, id2, rev;
puts ("Board: ");
if (i == -1)
puts ("### No HW ID - assuming DP405");
else
puts(str);
id1 = trans[(~(in_be32((void *)GPIO0_IR) >> 5)) & 0x0000000f];
id2 = trans[(~(in_be32((void *)GPIO0_IR) >> 9)) & 0x0000000f];
rev = in_8((void *)0xf0001000);
if (rev & 0x10) /* old DP405 compatibility */
rev = in_8((void *)0xf0000800);
switch (rev & 0xc0) {
case 0x00:
puts(" (HW=DP405");
break;
case 0x80:
puts(" (HW=DP405/CO");
break;
case 0xc0:
puts(" (HW=DN405");
break;
}
printf(", ID=0x%1X%1X, PLD=0x%02X", id2, id1, rev & 0x0f);
if ((rev & 0xc0) == 0xc0) {
printf(", C5V=%s",
in_be32((void *)GPIO0_IR) & 0x40000000 ? "off" : "on");
}
puts(")\n");
return 0;
}
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