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/*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <gj@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 <common.h>
#include <s3c2400.h>
/* ------------------------------------------------------------------------- */
#ifdef CONFIG_MODEM_SUPPORT
static int key_pressed(void);
int mdm_init (bd_t *);
extern void disable_putc(void);
extern void enable_putc(void);
extern int hwflow_onoff(int);
extern int do_mdm_init; /* defined in common/main.c */
#endif /* CONFIG_MODEM_SUPPORT */
/*
* Miscellaneous platform dependent initialisations
*/
int board_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
/* memory and cpu-speed are setup before relocation */
/* change the clock to be 50 MHz 1:1:1 */
clk_power->MPLLCON = 0x5c042;
clk_power->CLKDIVN = 0;
/* set up the I/O ports */
gpio->PACON = 0x3ffff;
gpio->PBCON = 0xaaaaaaaa;
gpio->PBUP = 0xffff;
gpio->PECON = 0x0;
gpio->PEUP = 0x0;
#ifdef CONFIG_HWFLOW
/*CTS[0] RTS[0] INPUT INPUT TXD[0] INPUT RXD[0] */
/* 10, 10, 00, 00, 10, 00, 10 */
gpio->PFCON=0xa22;
/* Disable pull-up on Rx, Tx, CTS and RTS pins */
gpio->PFUP=0x35;
#else
/*INPUT INPUT INPUT INPUT TXD[0] INPUT RXD[0] */
/* 00, 00, 00, 00, 10, 00, 10 */
gpio->PFCON = 0x22;
/* Disable pull-up on Rx and Tx pins */
gpio->PFUP = 0x5;
#endif /* CONFIG_HWFLOW */
gpio->PGCON = 0x0;
gpio->PGUP = 0x0;
gpio->OPENCR = 0x0;
/* arch number of SAMSUNG-Board to MACH_TYPE_SMDK2400 */
gd->bd->bi_arch_number = 145;
/* adress of boot parameters */
gd->bd->bi_boot_params = 0x0C000100;
#ifdef CONFIG_MODEM_SUPPORT
if (key_pressed()) {
disable_putc(); /* modem doesn't understand banner etc */
do_mdm_init = 1;
}
#endif /* CONFIG_MODEM_SUPPORT */
return 0;
}
int dram_init (void)
{
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
return 0;
}
#ifdef CONFIG_MODEM_SUPPORT
static int key_pressed(void)
{
int rc;
if (1) { /* check for button push here, now just return 1 */
rc = 1;
}
return rc;
}
#endif /* CONFIG_MODEM_SUPPORT */
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