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0b135cfc | 1 | /* |
1a2334a4 | 2 | * Copyright (C) 2007,2008 |
0b135cfc NI |
3 | * Nobuhiro Iwamatsu <iwamatsu@nigauri.org> |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License as | |
7 | * published by the Free Software Foundation; either version 2 of | |
8 | * the License, or (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
18 | * MA 02111-1307 USA | |
19 | */ | |
20 | ||
21 | #include <common.h> | |
22 | #include <command.h> | |
23 | #include <malloc.h> | |
24 | #include <devices.h> | |
25 | #include <version.h> | |
26 | #include <net.h> | |
27 | #include <environment.h> | |
28 | ||
29 | extern void malloc_bin_reloc (void); | |
30 | extern int cpu_init(void); | |
31 | extern int board_init(void); | |
32 | extern int dram_init(void); | |
33 | extern int watchdog_init(void); | |
34 | extern int timer_init(void); | |
35 | ||
36 | const char version_string[] = U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")"; | |
37 | ||
38 | unsigned long monitor_flash_len = CFG_MONITOR_LEN; | |
39 | ||
40 | static unsigned long mem_malloc_start; | |
41 | static unsigned long mem_malloc_end; | |
42 | static unsigned long mem_malloc_brk; | |
43 | ||
44 | static void mem_malloc_init (void) | |
45 | { | |
46 | ||
47 | mem_malloc_start = (TEXT_BASE - CFG_GBL_DATA_SIZE - CFG_MALLOC_LEN); | |
48 | mem_malloc_end = (mem_malloc_start + CFG_MALLOC_LEN - 16); | |
49 | mem_malloc_brk = mem_malloc_start; | |
61fb15c5 | 50 | memset ((void *) mem_malloc_start, 0, |
0b135cfc NI |
51 | (mem_malloc_end - mem_malloc_start)); |
52 | } | |
53 | ||
54 | void *sbrk (ptrdiff_t increment) | |
55 | { | |
56 | unsigned long old = mem_malloc_brk; | |
57 | unsigned long new = old + increment; | |
58 | ||
59 | if ((new < mem_malloc_start) || | |
60 | (new > mem_malloc_end)) { | |
61 | return NULL; | |
62 | } | |
63 | ||
64 | mem_malloc_brk = new; | |
65 | return (void *) old; | |
66 | } | |
67 | ||
b02bad12 NI |
68 | static int sh_flash_init(void) |
69 | { | |
70 | DECLARE_GLOBAL_DATA_PTR; | |
71 | ||
72 | gd->bd->bi_flashsize = flash_init(); | |
73 | printf("FLASH: %dMB\n", gd->bd->bi_flashsize / (1024*1024)); | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | #if defined(CONFIG_CMD_NAND) | |
79 | void nand_init (void); | |
80 | static int sh_nand_init(void) | |
81 | { | |
82 | printf("NAND: "); | |
83 | nand_init(); /* go init the NAND */ | |
84 | return 0; | |
85 | } | |
86 | #endif /* CONFIG_CMD_NAND */ | |
87 | ||
88 | #if defined(CONFIG_CMD_IDE) | |
89 | #include <ide.h> | |
90 | static int sh_marubun_init(void) | |
91 | { | |
92 | puts ("IDE: "); | |
93 | ide_init(); | |
94 | return 0; | |
95 | } | |
96 | #endif /* (CONFIG_CMD_IDE) */ | |
97 | ||
1a2334a4 YG |
98 | #if defined(CONFIG_PCI) |
99 | static int sh_pci_init(void) | |
100 | { | |
101 | pci_init(); | |
102 | return 0; | |
103 | } | |
104 | #endif /* CONFIG_PCI */ | |
105 | ||
b02bad12 NI |
106 | static int sh_mem_env_init(void) |
107 | { | |
108 | mem_malloc_init(); | |
109 | malloc_bin_reloc(); | |
110 | env_relocate(); | |
111 | jumptable_init(); | |
112 | return 0; | |
113 | } | |
114 | ||
115 | static int sh_net_init(void) | |
116 | { | |
117 | DECLARE_GLOBAL_DATA_PTR; | |
118 | char *s, *e; | |
119 | int i; | |
120 | ||
121 | gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); | |
122 | s = getenv("ethaddr"); | |
123 | for (i = 0; i < 6; ++i) { | |
124 | gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0; | |
125 | if (s) s = (*e) ? e + 1 : e; | |
126 | } | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
0b135cfc NI |
131 | typedef int (init_fnc_t) (void); |
132 | ||
133 | init_fnc_t *init_sequence[] = | |
134 | { | |
135 | cpu_init, /* basic cpu dependent setup */ | |
136 | board_init, /* basic board dependent setup */ | |
137 | interrupt_init, /* set up exceptions */ | |
138 | env_init, /* event init */ | |
139 | serial_init, /* SCIF init */ | |
b02bad12 | 140 | watchdog_init, /* watchdog init */ |
0b135cfc NI |
141 | console_init_f, |
142 | display_options, | |
143 | checkcpu, | |
b02bad12 | 144 | checkboard, /* Check support board */ |
0b135cfc | 145 | dram_init, /* SDRAM init */ |
b02bad12 NI |
146 | timer_init, /* SuperH Timer (TCNT0 only) init */ |
147 | sh_flash_init, /* Flash memory(NOR) init*/ | |
148 | sh_mem_env_init, | |
149 | #if defined(CONFIG_CMD_NAND) | |
150 | sh_nand_init, /* Flash memory (NAND) init */ | |
1a2334a4 YG |
151 | #endif |
152 | #if defined(CONFIG_PCI) | |
153 | sh_pci_init, /* PCI Init */ | |
b02bad12 NI |
154 | #endif |
155 | devices_init, | |
156 | console_init_r, | |
157 | interrupt_init, | |
158 | #ifdef BOARD_LATE_INIT | |
159 | board_late_init, | |
160 | #endif | |
161 | #if defined(CONFIG_CMD_NET) | |
162 | sh_net_init, /* SH specific eth init */ | |
163 | #endif | |
0b135cfc NI |
164 | NULL /* Terminate this list */ |
165 | }; | |
166 | ||
167 | void sh_generic_init (void) | |
168 | { | |
169 | DECLARE_GLOBAL_DATA_PTR; | |
170 | ||
171 | bd_t *bd; | |
172 | init_fnc_t **init_fnc_ptr; | |
b02bad12 | 173 | char *s; |
0b135cfc NI |
174 | int i; |
175 | ||
176 | memset (gd, 0, CFG_GBL_DATA_SIZE); | |
177 | ||
178 | gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ | |
179 | ||
b02bad12 | 180 | gd->bd = (bd_t *) (gd + 1); /* At end of global data */ |
0b135cfc NI |
181 | gd->baudrate = CONFIG_BAUDRATE; |
182 | ||
183 | gd->cpu_clk = CONFIG_SYS_CLK_FREQ; | |
184 | ||
185 | bd = gd->bd; | |
186 | bd->bi_memstart = CFG_SDRAM_BASE; | |
187 | bd->bi_memsize = CFG_SDRAM_SIZE; | |
188 | bd->bi_flashstart = CFG_FLASH_BASE; | |
189 | #if defined(CFG_SRAM_BASE) && defined(CFG_SRAM_SIZE) | |
190 | bd->bi_sramstart= CFG_SRAM_BASE; | |
191 | bd->bi_sramsize = CFG_SRAM_SIZE; | |
192 | #endif | |
193 | bd->bi_baudrate = CONFIG_BAUDRATE; | |
194 | ||
b02bad12 | 195 | for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr , i++) { |
0b135cfc NI |
196 | if ((*init_fnc_ptr) () != 0) { |
197 | hang(); | |
198 | } | |
199 | } | |
0b135cfc | 200 | |
b02bad12 | 201 | #if defined(CONFIG_CMD_NET) |
0b135cfc | 202 | puts ("Net: "); |
0b135cfc | 203 | eth_initialize(gd->bd); |
b02bad12 | 204 | |
61fb15c5 | 205 | if ((s = getenv ("bootfile")) != NULL) { |
b02bad12 NI |
206 | copy_filename (BootFile, s, sizeof (BootFile)); |
207 | } | |
208 | #endif /* CONFIG_CMD_NET */ | |
209 | ||
0b135cfc NI |
210 | while (1) { |
211 | main_loop(); | |
212 | } | |
213 | } | |
214 | ||
0b135cfc NI |
215 | /***********************************************************************/ |
216 | ||
217 | void hang (void) | |
218 | { | |
b02bad12 | 219 | puts ("Board ERROR\n"); |
0b135cfc NI |
220 | for (;;); |
221 | } |