| Kyungmin Park | 3317421 | 2008-01-17 16:43:25 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2005-2008 Samsung Electronics |
| 3 | * Kyungmin Park <kyungmin.park@samsung.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | #include <common.h> |
| 24 | #include <asm/arch/mux.h> |
| 25 | |
| 26 | #define write_config_reg(reg, value) \ |
| 27 | do { \ |
| 28 | writeb(value, reg); \ |
| 29 | } while (0) |
| 30 | |
| 31 | /***************************************** |
| 32 | * Routine: board_init |
| 33 | * Description: Early hardware init. |
| 34 | *****************************************/ |
| 35 | int board_init(void) |
| 36 | { |
| 37 | return 0; |
| 38 | } |
| 39 | |
| 40 | #ifdef CFG_PRINTF |
| 41 | /* Pin Muxing registers used for UART1 */ |
| 42 | /**************************************** |
| 43 | * Routine: muxSetupUART1 (ostboot) |
| 44 | * Description: Set up uart1 muxing |
| 45 | *****************************************/ |
| 46 | static void muxSetupUART1(void) |
| 47 | { |
| 48 | /* UART1_CTS pin configuration, PIN = D21 */ |
| 49 | write_config_reg(CONTROL_PADCONF_UART1_CTS, 0); |
| 50 | /* UART1_RTS pin configuration, PIN = H21 */ |
| 51 | write_config_reg(CONTROL_PADCONF_UART1_RTS, 0); |
| 52 | /* UART1_TX pin configuration, PIN = L20 */ |
| 53 | write_config_reg(CONTROL_PADCONF_UART1_TX, 0); |
| 54 | /* UART1_RX pin configuration, PIN = T21 */ |
| 55 | write_config_reg(CONTROL_PADCONF_UART1_RX, 0); |
| 56 | } |
| 57 | #endif |
| 58 | |
| 59 | /********************************************************** |
| 60 | * Routine: s_init |
| 61 | * Description: Does early system init of muxing and clocks. |
| 62 | * - Called at time when only stack is available. |
| 63 | **********************************************************/ |
| 64 | int s_init(int skip) |
| 65 | { |
| 66 | #ifdef CFG_PRINTF |
| 67 | muxSetupUART1(); |
| 68 | #endif |
| 69 | return 0; |
| 70 | } |