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/*
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* (C) Copyright 2005-2008 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/arch/mux.h>
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#define write_config_reg(reg, value) \
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do { \
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writeb(value, reg); \
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} while (0)
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/*****************************************
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* Routine: board_init
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* Description: Early hardware init.
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*****************************************/
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int board_init(void)
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{
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return 0;
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}
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#ifdef CONFIG_SYS_PRINTF
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/* Pin Muxing registers used for UART1 */
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/****************************************
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* Routine: muxSetupUART1 (ostboot)
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* Description: Set up uart1 muxing
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*****************************************/
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static void muxSetupUART1(void)
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{
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/* UART1_CTS pin configuration, PIN = D21 */
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write_config_reg(CONTROL_PADCONF_UART1_CTS, 0);
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/* UART1_RTS pin configuration, PIN = H21 */
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write_config_reg(CONTROL_PADCONF_UART1_RTS, 0);
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/* UART1_TX pin configuration, PIN = L20 */
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write_config_reg(CONTROL_PADCONF_UART1_TX, 0);
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/* UART1_RX pin configuration, PIN = T21 */
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write_config_reg(CONTROL_PADCONF_UART1_RX, 0);
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}
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#endif
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/**********************************************************
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* Routine: s_init
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* Description: Does early system init of muxing and clocks.
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* - Called at time when only stack is available.
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**********************************************************/
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int s_init(int skip)
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{
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#ifdef CONFIG_SYS_PRINTF
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muxSetupUART1();
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#endif
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return 0;
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}
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