2 * Copyright (C) 2007,2008
3 * Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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.
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.
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,
28 #include <environment.h>
30 extern void malloc_bin_reloc (void);
31 extern int cpu_init(void);
32 extern int board_init(void);
33 extern int dram_init(void);
34 extern int timer_init(void);
36 const char version_string[] = U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
38 unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
40 static unsigned long mem_malloc_start;
41 static unsigned long mem_malloc_end;
42 static unsigned long mem_malloc_brk;
44 static void mem_malloc_init(void)
47 mem_malloc_start = (TEXT_BASE - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN);
48 mem_malloc_end = (mem_malloc_start + CONFIG_SYS_MALLOC_LEN - 16);
49 mem_malloc_brk = mem_malloc_start;
50 memset((void *) mem_malloc_start, 0,
51 (mem_malloc_end - mem_malloc_start));
54 void *sbrk(ptrdiff_t increment)
56 unsigned long old = mem_malloc_brk;
57 unsigned long new = old + increment;
59 if ((new < mem_malloc_start) ||
60 (new > mem_malloc_end)) {
68 static int sh_flash_init(void)
70 DECLARE_GLOBAL_DATA_PTR;
72 gd->bd->bi_flashsize = flash_init();
73 printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024));
78 #if defined(CONFIG_CMD_NAND)
80 # define INIT_FUNC_NAND_INIT nand_init,
82 # define INIT_FUNC_NAND_INIT
83 #endif /* CONFIG_CMD_NAND */
85 #if defined(CONFIG_WATCHDOG)
86 extern int watchdog_init(void);
87 extern int watchdog_disable(void);
88 # define INIT_FUNC_WATCHDOG_INIT watchdog_init,
89 # define WATCHDOG_DISABLE watchdog_disable
91 # define INIT_FUNC_WATCHDOG_INIT
92 # define WATCHDOG_DISABLE
93 #endif /* CONFIG_WATCHDOG */
95 #if defined(CONFIG_CMD_IDE)
97 # define INIT_FUNC_IDE_INIT ide_init,
99 # define INIT_FUNC_IDE_INIT
100 #endif /* CONFIG_CMD_IDE */
102 #if defined(CONFIG_PCI)
104 static int sh_pci_init(void)
109 # define INIT_FUNC_PCI_INIT sh_pci_init,
111 # define INIT_FUNC_PCI_INIT
112 #endif /* CONFIG_PCI */
114 static int sh_mem_env_init(void)
123 #if defined(CONFIG_CMD_NET)
124 static int sh_net_init(void)
126 DECLARE_GLOBAL_DATA_PTR;
130 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
131 s = getenv("ethaddr");
132 for (i = 0; i < 6; ++i) {
133 gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
135 s = (*e) ? e + 1 : e;
142 typedef int (init_fnc_t) (void);
144 init_fnc_t *init_sequence[] =
146 cpu_init, /* basic cpu dependent setup */
147 board_init, /* basic board dependent setup */
148 interrupt_init, /* set up exceptions */
149 env_init, /* event init */
150 serial_init, /* SCIF init */
151 INIT_FUNC_WATCHDOG_INIT /* watchdog init */
155 checkboard, /* Check support board */
156 dram_init, /* SDRAM init */
157 timer_init, /* SuperH Timer (TCNT0 only) init */
158 sh_flash_init, /* Flash memory(NOR) init*/
160 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */
161 INIT_FUNC_PCI_INIT /* PCI init */
165 #ifdef BOARD_LATE_INIT
168 #if defined(CONFIG_CMD_NET)
169 sh_net_init, /* SH specific eth init */
171 NULL /* Terminate this list */
174 void sh_generic_init(void)
176 DECLARE_GLOBAL_DATA_PTR;
179 init_fnc_t **init_fnc_ptr;
181 memset(gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
183 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
185 gd->bd = (bd_t *)(gd + 1); /* At end of global data */
186 gd->baudrate = CONFIG_BAUDRATE;
188 gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
191 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
192 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
193 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
194 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
195 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
196 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
198 bd->bi_baudrate = CONFIG_BAUDRATE;
200 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
202 if ((*init_fnc_ptr) () != 0)
206 #ifdef CONFIG_WATCHDOG
207 /* disable watchdog if environment is set */
209 char *s = getenv("watchdog");
211 if (strncmp(s, "off", 3) == 0)
214 #endif /* CONFIG_WATCHDOG*/
217 #if defined(CONFIG_CMD_NET)
221 eth_initialize(gd->bd);
223 s = getenv("bootfile");
225 copy_filename(BootFile, s, sizeof(BootFile));
227 #endif /* CONFIG_CMD_NET */
235 /***********************************************************************/
239 puts("Board ERROR\n");