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/*
* (C) Copyright 2002 ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.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 <common.h>
#include <command.h>
#include <mpc106.h>
#include <video_fb.h>
DECLARE_GLOBAL_DATA_PTR;
/* ------------------------------------------------------------------------- */
int checkboard (void)
{
puts ("Board: ELTEC PowerPC\n");
return (0);
}
/* ------------------------------------------------------------------------- */
int checkflash (void)
{
/* TODO */
printf ("Test not implemented !\n");
return (0);
}
/* ------------------------------------------------------------------------- */
static unsigned int mpc106_read_cfg_dword (unsigned int reg)
{
unsigned int reg_addr = MPC106_REG | (reg & 0xFFFFFFFC);
out32r (MPC106_REG_ADDR, reg_addr);
return (in32r (MPC106_REG_DATA | (reg & 0x3)));
}
/* ------------------------------------------------------------------------- */
long int dram_size (int board_type)
{
/*
* No actual initialisation to do - done when setting up
* PICRs MCCRs ME/SARs etc in asm_init.S.
*/
register unsigned long i, msar1, mear1, memSize;
#if defined(CFG_MEMTEST)
register unsigned long reg;
printf ("Testing DRAM\n");
/* write each mem addr with it's address */
for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4)
*reg = reg;
for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) {
if (*reg != reg)
return -1;
}
#endif
/*
* Since MPC107 memory controller chip has already been set to
* control all memory, just read and interpret its memory boundery register.
*/
memSize = 0;
msar1 = mpc106_read_cfg_dword (MPC106_MSAR1);
mear1 = mpc106_read_cfg_dword (MPC106_MEAR1);
i = mpc106_read_cfg_dword (MPC106_MBER) & 0xf;
do {
if (i & 0x01) /* is bank enabled ? */
memSize += (mear1 & 0xff) - (msar1 & 0xff) + 1;
msar1 >>= 8;
mear1 >>= 8;
i >>= 1;
} while (i);
return (memSize * 0x100000);
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
return dram_size (board_type);
}
/* ------------------------------------------------------------------------- */
/*
* The BAB 911 can be reset by writing bit 0 of the Processor Initialization
* Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities
* Memory Block).
*/
int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
out8 (MPC107_EUMB_PI, 1);
return (0);
}
/* ------------------------------------------------------------------------- */
#if defined(CONFIG_WATCHDOG)
/*
* Since the 7xx CPUs don't have an internal watchdog, this function is
* board specific.
*/
void watchdog_reset (void)
{
}
#endif /* CONFIG_WATCHDOG */
/* ------------------------------------------------------------------------- */
void after_reloc (ulong dest_addr)
{
/*
* Jump to the main U-Boot board init code
*/
board_init_r ((gd_t *)gd, dest_addr);
}
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_CONSOLE_EXTRA_INFO
extern GraphicDevice smi;
void video_get_info_str (int line_number, char *info)
{
/* init video info strings for graphic console */
switch (line_number) {
case 1:
sprintf (info, " MPC7xx V%d.%d at %d / %d MHz",
(get_pvr () >> 8) & 0xFF, get_pvr () & 0xFF, 400, 100);
return;
case 2:
sprintf (info, " ELTEC ELPPC with %ld MB DRAM and %ld MB FLASH",
dram_size (0) / 0x100000, flash_init () / 0x100000);
return;
case 3:
sprintf (info, " %s", smi.modeIdent);
return;
}
/* no more info lines */
*info = 0;
return;
}
#endif
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