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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 | ||
6d0f6bcf | 40 | #ifdef CONFIG_SYS_PRINTF |
751b9b51 KP |
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 | { | |
6d0f6bcf | 66 | #ifdef CONFIG_SYS_PRINTF |
751b9b51 KP |
67 | muxSetupUART1(); |
68 | #endif | |
69 | return 0; | |
70 | } |