mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-29 14:33:08 +00:00
115 lines
3 KiB
C
115 lines
3 KiB
C
/*
|
|
* (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 = MACH_TYPE_SMDK2400;
|
|
|
|
/* 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 */
|