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/*
* (C) Copyright 2001
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <netdev.h>
#include "dasa_sim.h"
/* ------------------------------------------------------------------------- */
#undef FPGA_DEBUG
#define _NOT_USED_ 0xFFFFFFFF
/* ------------------------------------------------------------------------- */
/* fpga configuration data - generated by bit2inc */
static unsigned char fpgadata[] = {
#include "fpgadata.c"
};
#define FPGA_PRG_SLEEP 32 /* fpga program sleep-time */
#define LOAD_LONG(a) a
/******************************************************************************
*
* sysFpgaBoot - Load fpga-image into fpga
*
*/
static int fpgaBoot (void)
{
int i, j, index, len;
unsigned char b;
int imageSize;
imageSize = sizeof (fpgadata);
/* display infos on fpgaimage */
index = 15;
for (i = 0; i < 4; i++) {
len = fpgadata[index];
index += len + 3;
}
/* search for preamble 0xFF2X */
for (index = 0; index < imageSize - 1; index++) {
if ((fpgadata[index] == 0xff)
&& ((fpgadata[index + 1] & 0xf0) == 0x20))
break;
}
/* enable cs1 instead of user0... */
*(unsigned long *) 0x50000084 &= ~0x00000002;
#ifdef FPGA_DEBUG
printf ("%s\n",
((in_be32 ((void *)0x50000084) & 0x00010000) == 0) ?
"NOT DONE" : "DONE");
#endif
/* init fpga by asserting and deasserting PROGRAM* (USER2)... */
*(unsigned long *) 0x50000084 &= ~0x00000400;
udelay (FPGA_PRG_SLEEP * 1000);
*(unsigned long *) 0x50000084 |= 0x00000400;
udelay (FPGA_PRG_SLEEP * 1000);
#ifdef FPGA_DEBUG
printf ("%s\n",
((in_be32 ((void *)0x50000084) & 0x00010000) == 0) ?
"NOT DONE" : "DONE");
#endif
/* cs1: disable burst, disable ready */
*(unsigned long *) 0x50000114 &= ~0x00000300;
/* cs1: set write timing */
*(unsigned long *) 0x50000118 |= 0x00010900;
/* write configuration-data into fpga... */
for (i = index; i < imageSize; i++) {
b = fpgadata[i];
for (j = 0; j < 8; j++) {
*(unsigned long *) 0x30000000 =
((b & 0x80) == 0x80)
? LOAD_LONG (0x03030101)
: LOAD_LONG (0x02020000);
b <<= 1;
}
}
#ifdef FPGA_DEBUG
printf ("%s\n",
((in_be32 ((void *)0x50000084) & 0x00010000) == 0) ?
"NOT DONE" : "DONE");
#endif
/* set cs1 to 32 bit data-width, disable burst, enable ready */
*(unsigned long *) 0x50000114 |= 0x00000202;
*(unsigned long *) 0x50000114 &= ~0x00000100;
/* cs1: set iop access to little endian */
*(unsigned long *) 0x50000114 &= ~0x00000010;
/* cs1: set read and write timing */
*(unsigned long *) 0x50000118 = 0x00010000;
*(unsigned long *) 0x5000011c = 0x00010001;
#ifdef FPGA_DEBUG
printf ("%s\n",
((in_be32 ((void *)0x50000084) & 0x00010000) == 0) ?
"NOT DONE" : "DONE");
#endif
/* wait for 30 ms... */
udelay (30 * 1000);
/* check if fpga's DONE signal - correctly booted ? */
if ((*(unsigned long *) 0x50000084 & 0x00010000) == 0)
return -1;
return 0;
}
int board_early_init_f (void)
{
/*
* Init pci regs
*/
*(unsigned long *) 0x50000304 = 0x02900007; /* enable mem/io/master bits */
*(unsigned long *) 0x500001b4 = 0x00000000; /* disable pci interrupt output enable */
*(unsigned long *) 0x50000354 = 0x00c05800; /* disable emun interrupt output enable */
*(unsigned long *) 0x50000344 = 0x00000000; /* disable pme interrupt output enable */
*(unsigned long *) 0x50000310 = 0x00000000; /* pcibar0 */
*(unsigned long *) 0x50000314 = 0x00000000; /* pcibar1 */
*(unsigned long *) 0x50000318 = 0x00000000; /* pcibar2 */
return 0;
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
int index;
int len;
char str[64];
int i = getenv_f("serial#", str, sizeof (str));
int fpga;
unsigned short val;
puts ("Board: ");
/*
* Boot onboard FPGA
*/
fpga = fpgaBoot ();
if (!i || strncmp (str, "DASA_SIM", 8)) {
puts ("### No HW ID - assuming DASA_SIM");
}
puts (str);
if (fpga == 0) {
val = *(unsigned short *) 0x30000202;
printf (" (Id=%d Version=%d Revision=%d)",
(val & 0x07f8) >> 3, val & 0x0001, (val & 0x0006) >> 1);
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;
}
} else {
puts ("\nFPGA: Booting failed!");
}
putc ('\n');
return 0;
}
phys_size_t initdram (int board_type)
{
return (16 * 1024 * 1024);
}
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