mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 17:10:11 +00:00
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
|
|
* (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;
|
|
}
|