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/*
* (C) Copyright 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 <asm/processor.h>
#include <command.h>
#include <malloc.h>
#include <pci.h>
#include <405gp_pci.h>
#include "pci405.h"
/* ------------------------------------------------------------------------- */
extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);/*cmd_boot.c*/
#if 0
#define FPGA_DEBUG
#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"
/* Prototypes */
int gunzip(void *, int, unsigned char *, unsigned long *);
int board_early_init_f (void)
{
unsigned long cntrl0Reg;
/*
* 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) CAN1; active low; level sensitive
* IRQ 27 (EXT IRQ 2) CAN2; active low; level sensitive
* IRQ 28 (EXT IRQ 3) CAN3; active low; level sensitive
* IRQ 29 (EXT IRQ 4) unused; active low; level sensitive
* IRQ 30 (EXT IRQ 5) FPGA Timestamp; active low; level sensitive
* IRQ 31 (EXT IRQ 6) PCI Reset; active low; 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, 0xFFFFFF80); /* 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 */
/*
* Setup GPIO pins (IRQ4/GPIO21 as GPIO)
*/
cntrl0Reg = mfdcr(cntrl0);
mtdcr(cntrl0, cntrl0Reg | 0x00008000);
/*
* EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 25 us
*/
mtebc (epcr, 0xa8400000); /* ebc always driven */
return 0;
}
/* ------------------------------------------------------------------------- */
int misc_init_f (void)
{
return 0; /* dummy implementation */
}
int misc_init_r (void)
{
unsigned char *dst;
ulong len = sizeof(fpgadata);
int status;
int index;
int i;
unsigned int *ptr;
unsigned int *magic;
/*
* On PCI-405 the environment is saved in eeprom!
* FPGA can be gzip compressed (malloc) and booted this late.
*/
dst = malloc(CFG_FPGA_MAX_SIZE);
if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, &len) != 0) {
printf ("GUNZIP ERROR - must RESET board to recover\n");
do_reset (NULL, 0, 0, NULL);
}
status = fpga_boot(dst, len);
if (status != 0) {
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 = dst[index];
printf("FPGA: %s\n", &(dst[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);
}
puts("FPGA: ");
/* display infos on fpgaimage */
index = 15;
for (i=0; i<4; i++) {
len = dst[index];
printf("%s ", &(dst[index+1]));
index += len+3;
}
putc ('\n');
/*
* Reset FPGA via FPGA_DATA pin
*/
SET_FPGA(FPGA_PRG | FPGA_CLK);
udelay(1000); /* wait 1ms */
SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);
udelay(1000); /* wait 1ms */
/*
* Check if magic for pci reconfig is written
*/
magic = (unsigned int *)0x00000004;
if (*magic == PCI_RECONFIG_MAGIC) {
/*
* Rewrite pci config regs (only after soft-reset with magic set)
*/
ptr = (unsigned int *)PCI_REGS_ADDR;
if (crc32(0, (char *)PCI_REGS_ADDR+4, PCI_REGS_LEN-4) == *ptr) {
puts("Restoring PCI Configurations Regs!\n");
ptr = (unsigned int *)PCI_REGS_ADDR + 1;
for (i=0; i<0x40; i+=4) {
pci_write_config_dword(PCIDEVID_405GP, i, *ptr++);
}
}
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
*magic = 0; /* clear pci reconfig magic again */
}
free(dst);
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
unsigned char str[64];
int i = getenv_r ("serial#", str, sizeof(str));
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming PCI405");
} else {
puts (str);
}
putc ('\n');
return 0;
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
unsigned long val;
mtdcr(memcfga, mem_mb0cf);
val = mfdcr(memcfgd);
#if 0
printf("\nmb0cf=%x\n", val); /* test-only */
printf("strap=%x\n", mfdcr(strap)); /* test-only */
#endif
#if 0 /* test-only: all PCI405 version must report 16mb */
return (4*1024*1024 << ((val & 0x000e0000) >> 17));
#else
return (16*1024*1024);
#endif
}
/* ------------------------------------------------------------------------- */
int testdram (void)
{
/* TODO: XXX XXX XXX */
printf ("test: 16 MB - ok\n");
return (0);
}
/* ------------------------------------------------------------------------- */
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