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1 | /* |
2 | * (C) Copyright 2002 | |
3 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
4 | * Marius Groeger <mgroeger@sysgo.de> | |
5 | * | |
6 | * (C) Copyright 2002 | |
792a09eb | 7 | * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> |
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8 | * |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
29 | #include <s3c2400.h> | |
30 | ||
d87080b7 | 31 | DECLARE_GLOBAL_DATA_PTR; |
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32 | |
33 | #ifdef CONFIG_MODEM_SUPPORT | |
34 | static int key_pressed(void); | |
35 | int mdm_init (bd_t *); | |
36 | extern void disable_putc(void); | |
37 | extern void enable_putc(void); | |
38 | extern int hwflow_onoff(int); | |
39 | extern int do_mdm_init; /* defined in common/main.c */ | |
40 | #endif /* CONFIG_MODEM_SUPPORT */ | |
41 | ||
42 | /* | |
43 | * Miscellaneous platform dependent initialisations | |
44 | */ | |
45 | ||
46 | int board_init (void) | |
47 | { | |
48b42616 WD |
48 | S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER(); |
49 | S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO(); | |
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50 | |
51 | /* memory and cpu-speed are setup before relocation */ | |
52 | /* change the clock to be 50 MHz 1:1:1 */ | |
48b42616 WD |
53 | clk_power->MPLLCON = 0x5c042; |
54 | clk_power->CLKDIVN = 0; | |
d8a555f2 | 55 | /* set up the I/O ports */ |
48b42616 WD |
56 | gpio->PACON = 0x3ffff; |
57 | gpio->PBCON = 0xaaaaaaaa; | |
58 | gpio->PBUP = 0xffff; | |
59 | gpio->PECON = 0x0; | |
60 | gpio->PEUP = 0x0; | |
d8a555f2 WD |
61 | #ifdef CONFIG_HWFLOW |
62 | /*CTS[0] RTS[0] INPUT INPUT TXD[0] INPUT RXD[0] */ | |
63 | /* 10, 10, 00, 00, 10, 00, 10 */ | |
48b42616 | 64 | gpio->PFCON=0xa22; |
d8a555f2 | 65 | /* Disable pull-up on Rx, Tx, CTS and RTS pins */ |
48b42616 | 66 | gpio->PFUP=0x35; |
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67 | #else |
68 | /*INPUT INPUT INPUT INPUT TXD[0] INPUT RXD[0] */ | |
69 | /* 00, 00, 00, 00, 10, 00, 10 */ | |
48b42616 | 70 | gpio->PFCON = 0x22; |
d8a555f2 | 71 | /* Disable pull-up on Rx and Tx pins */ |
48b42616 | 72 | gpio->PFUP = 0x5; |
d8a555f2 | 73 | #endif /* CONFIG_HWFLOW */ |
48b42616 WD |
74 | gpio->PGCON = 0x0; |
75 | gpio->PGUP = 0x0; | |
76 | gpio->OPENCR = 0x0; | |
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77 | |
78 | /* arch number of SAMSUNG-Board to MACH_TYPE_SMDK2400 */ | |
731215eb | 79 | gd->bd->bi_arch_number = MACH_TYPE_SMDK2400; |
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80 | |
81 | /* adress of boot parameters */ | |
82 | gd->bd->bi_boot_params = 0x0C000100; | |
83 | ||
84 | #ifdef CONFIG_MODEM_SUPPORT | |
85 | if (key_pressed()) { | |
86 | disable_putc(); /* modem doesn't understand banner etc */ | |
87 | do_mdm_init = 1; | |
88 | } | |
89 | #endif /* CONFIG_MODEM_SUPPORT */ | |
90 | ||
91 | return 0; | |
92 | } | |
93 | ||
94 | int dram_init (void) | |
95 | { | |
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96 | gd->bd->bi_dram[0].start = PHYS_SDRAM_1; |
97 | gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | #ifdef CONFIG_MODEM_SUPPORT | |
103 | static int key_pressed(void) | |
104 | { | |
105 | int rc; | |
106 | if (1) { /* check for button push here, now just return 1 */ | |
107 | rc = 1; | |
108 | } | |
109 | ||
110 | return rc; | |
111 | } | |
112 | #endif /* CONFIG_MODEM_SUPPORT */ |