u-boot/board/samsung/smdk2400/smdk2400.c
C Nauman d9abba8254 Add generic support for samsung s3c2440
This patch adds generic support for the Samsung s3c2440 processor.

Global s3c24x0 changes to struct members converting from upper case to
lower case.

Signed-off-by: Craig Nauman <cnauman@diagraph.com>
Cc: kevin.morfitt@fearnside-systems.co.uk
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2010-10-28 15:35:56 +09:00

125 lines
3.1 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, <garyj@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 <netdev.h>
#include <asm/arch/s3c24x0_cpu.h>
DECLARE_GLOBAL_DATA_PTR;
#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)
{
struct s3c24x0_clock_power * const clk_power =
s3c24x0_get_base_clock_power();
struct s3c24x0_gpio * const gpio = s3c24x0_get_base_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)
{
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 */
#ifdef CONFIG_CMD_NET
int board_eth_init(bd_t *bis)
{
int rc = 0;
#ifdef CONFIG_CS8900
rc = cs8900_initialize(0, CONFIG_CS8900_BASE);
#endif
return rc;
}
#endif