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/*
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.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 <config.h>
#include <common.h>
#include <command.h>
#include <asm/io.h>
#include <linux/mtd/doc2000.h>
#include <watchdog.h>
#include <pci.h>
#include "hardware.h"
#include "pcippc2.h"
#include "sconsole.h"
#include "fpga_serial.h"
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_WATCHDOG)
static int pcippc2_wdt_init_done = 0;
void pcippc2_wdt_init (void);
#endif
/* Check board identity
*/
int checkboard (void)
{
#ifdef CONFIG_PCIPPC2
puts ("Board: Gespac PCIPPC-2\n");
#else
puts ("Board: Gespac PCIPPC-6\n");
#endif
return 0;
}
/* RAM size is stored in CPC0_RGBAN1
*/
u32 pcippc2_sdram_size (void)
{
return in32 (REG (CPC0, RGBAN1));
}
long initdram (int board_type)
{
return cpc710_ram_init ();
}
int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
out32 (REG (CPC0, SPOR), 0);
iobarrier_rw ();
while (1);
/* notreached */
return (-1);
}
int board_early_init_f (void)
{
out32 (REG (CPC0, RSTR), 0xC0000000);
iobarrier_rw ();
out32 (REG (CPC0, RSTR), 0xF0000000);
iobarrier_rw ();
out32 (REG (CPC0, UCTL), 0x00F80000);
out32 (REG (CPC0, SIOC0), 0x30000000);
out32 (REG (CPC0, ABCNTL), 0x00000000);
out32 (REG (CPC0, SESR), 0x00000000);
out32 (REG (CPC0, SEAR), 0x00000000);
/* Detect IBM Avignon CPC710 Revision */
if ((in32 (REG (CPC0, UCTL)) & 0x000000F0) == CPC710_TYPE_100P)
out32 (REG (CPC0, PGCHP), 0xA0000040);
else
out32 (REG (CPC0, PGCHP), 0x80800040);
out32 (REG (CPC0, ATAS), 0x709C2508);
iobarrier_rw ();
return 0;
}
void after_reloc (ulong dest_addr)
{
/* Jump to the main U-Boot board init code
*/
board_init_r ((gd_t *)gd, dest_addr);
}
int misc_init_r (void)
{
pcippc2_fpga_init ();
pcippc2_cpci3264_init ();
#if defined(CONFIG_WATCHDOG)
pcippc2_wdt_init ();
#endif
fpga_serial_init (sconsole_get_baudrate ());
sconsole_putc = fpga_serial_putc;
sconsole_puts = fpga_serial_puts;
sconsole_getc = fpga_serial_getc;
sconsole_tstc = fpga_serial_tstc;
sconsole_setbrg = fpga_serial_setbrg;
sconsole_flush ();
return (0);
}
void pci_init_board (void)
{
cpc710_pci_init ();
/* FPGA requires no retry timeouts to be enabled
*/
cpc710_pci_enable_timeout ();
}
void doc_init (void)
{
doc_probe (pcippc2_fpga1_phys + HW_FPGA1_DOC);
}
void pcippc2_cpci3264_init (void)
{
pci_dev_t bdf = pci_find_device(FPGA_VENDOR_ID, FPGA_DEVICE_ID, 0);
if (bdf == -1)
{
puts("Unable to find FPGA !\n");
hang();
}
if((in32(pcippc2_fpga0_phys + HW_FPGA0_BOARD) & 0x01000000) == 0x01000000)
/* 32-bits Compact PCI bus - LSB bit */
{
iobarrier_rw();
out32(BRIDGE(CPCI, PCIDG), 0x40000000); /* 32-bits bridge, Pipeline */
iobarrier_rw();
}
}
#if defined(CONFIG_WATCHDOG)
void pcippc2_wdt_init (void)
{
out16r (FPGA (WDT, PROG), 0xffff);
out8 (FPGA (WDT, CTRL), 0x1);
pcippc2_wdt_init_done = 1;
}
void pcippc2_wdt_done (void)
{
out8 (FPGA (WDT, CTRL), 0x0);
pcippc2_wdt_init_done = 0;
}
void pcippc2_wdt_reset (void)
{
if (pcippc2_wdt_init_done == 1)
out8 (FPGA (WDT, REFRESH), 0x56);
}
void watchdog_reset (void)
{
int re_enable = disable_interrupts ();
pcippc2_wdt_reset ();
if (re_enable)
enable_interrupts ();
}
#if (CONFIG_COMMANDS & CFG_CMD_BSP) || defined(CONFIG_CMD_BSP)
int do_wd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
switch (argc) {
case 1:
printf ("Watchdog timer status is %s\n",
pcippc2_wdt_init_done == 1 ? "on" : "off");
return 0;
case 2:
if (!strcmp(argv[1],"on")) {
pcippc2_wdt_init();
printf("Watchdog timer now is on\n");
return 0;
} else if (!strcmp(argv[1],"off")) {
pcippc2_wdt_done();
printf("Watchdog timer now is off\n");
return 0;
} else
break;
default:
break;
}
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
U_BOOT_CMD(
wd, 2, 1, do_wd,
"wd - check and set watchdog\n",
"on - switch watchDog on\n"
"wd off - switch watchdog off\n"
"wd - print current status\n"
);
#endif /* CFG_CMD_BSP */
#endif /* CONFIG_WATCHDOG */
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