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/*
* (C) Copyright 2005-2008 Samsung Electronics
* Kyungmin Park <kyungmin.park@samsung.com>
*
* 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 <asm/arch/mux.h>
#define write_config_reg(reg, value) \
do { \
writeb(value, reg); \
} while (0)
/*****************************************
* Routine: board_init
* Description: Early hardware init.
*****************************************/
int board_init(void)
{
return 0;
}
#ifdef CONFIG_SYS_PRINTF
/* Pin Muxing registers used for UART1 */
/****************************************
* Routine: muxSetupUART1 (ostboot)
* Description: Set up uart1 muxing
*****************************************/
static void muxSetupUART1(void)
{
/* UART1_CTS pin configuration, PIN = D21 */
write_config_reg(CONTROL_PADCONF_UART1_CTS, 0);
/* UART1_RTS pin configuration, PIN = H21 */
write_config_reg(CONTROL_PADCONF_UART1_RTS, 0);
/* UART1_TX pin configuration, PIN = L20 */
write_config_reg(CONTROL_PADCONF_UART1_TX, 0);
/* UART1_RX pin configuration, PIN = T21 */
write_config_reg(CONTROL_PADCONF_UART1_RX, 0);
}
#endif
/**********************************************************
* Routine: s_init
* Description: Does early system init of muxing and clocks.
* - Called at time when only stack is available.
**********************************************************/
int s_init(int skip)
{
#ifdef CONFIG_SYS_PRINTF
muxSetupUART1();
#endif
return 0;
}
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