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,
25 #include <timestamp.h>
29 #include <environment.h>
31 extern void malloc_bin_reloc (void);
32 extern int cpu_init(void);
33 extern int board_init(void);
34 extern int dram_init(void);
35 extern int timer_init(void);
37 const char version_string[] = U_BOOT_VERSION" ("U_BOOT_DATE" - "U_BOOT_TIME")";
39 unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
41 static unsigned long mem_malloc_start;
42 static unsigned long mem_malloc_end;
43 static unsigned long mem_malloc_brk;
45 static void mem_malloc_init(void)
48 mem_malloc_start = (TEXT_BASE - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN);
49 mem_malloc_end = (mem_malloc_start + CONFIG_SYS_MALLOC_LEN - 16);
50 mem_malloc_brk = mem_malloc_start;
51 memset((void *) mem_malloc_start, 0,
52 (mem_malloc_end - mem_malloc_start));
55 void *sbrk(ptrdiff_t increment)
57 unsigned long old = mem_malloc_brk;
58 unsigned long new = old + increment;
60 if ((new < mem_malloc_start) ||
61 (new > mem_malloc_end)) {
69 static int sh_flash_init(void)
71 DECLARE_GLOBAL_DATA_PTR;
73 gd->bd->bi_flashsize = flash_init();
74 printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024));
79 #if defined(CONFIG_CMD_NAND)
81 # define INIT_FUNC_NAND_INIT nand_init,
83 # define INIT_FUNC_NAND_INIT
84 #endif /* CONFIG_CMD_NAND */
86 #if defined(CONFIG_WATCHDOG)
87 extern int watchdog_init(void);
88 extern int watchdog_disable(void);
89 # define INIT_FUNC_WATCHDOG_INIT watchdog_init,
90 # define WATCHDOG_DISABLE watchdog_disable
92 # define INIT_FUNC_WATCHDOG_INIT
93 # define WATCHDOG_DISABLE
94 #endif /* CONFIG_WATCHDOG */
96 #if defined(CONFIG_CMD_IDE)
98 # define INIT_FUNC_IDE_INIT ide_init,
100 # define INIT_FUNC_IDE_INIT
101 #endif /* CONFIG_CMD_IDE */
103 #if defined(CONFIG_PCI)
105 static int sh_pci_init(void)
110 # define INIT_FUNC_PCI_INIT sh_pci_init,
112 # define INIT_FUNC_PCI_INIT
113 #endif /* CONFIG_PCI */
115 static int sh_mem_env_init(void)
124 #if defined(CONFIG_CMD_NET)
125 static int sh_net_init(void)
127 DECLARE_GLOBAL_DATA_PTR;
131 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
132 s = getenv("ethaddr");
133 for (i = 0; i < 6; ++i) {
134 gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
136 s = (*e) ? e + 1 : e;
143 typedef int (init_fnc_t) (void);
145 init_fnc_t *init_sequence[] =
147 cpu_init, /* basic cpu dependent setup */
148 board_init, /* basic board dependent setup */
149 interrupt_init, /* set up exceptions */
150 env_init, /* event init */
151 serial_init, /* SCIF init */
152 INIT_FUNC_WATCHDOG_INIT /* watchdog init */
156 checkboard, /* Check support board */
157 dram_init, /* SDRAM init */
158 timer_init, /* SuperH Timer (TCNT0 only) init */
159 sh_flash_init, /* Flash memory(NOR) init*/
161 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */
162 INIT_FUNC_PCI_INIT /* PCI init */
166 #ifdef BOARD_LATE_INIT
169 #if defined(CONFIG_CMD_NET)
170 sh_net_init, /* SH specific eth init */
172 NULL /* Terminate this list */
175 void sh_generic_init(void)
177 DECLARE_GLOBAL_DATA_PTR;
180 init_fnc_t **init_fnc_ptr;
182 memset(gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
184 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
186 gd->bd = (bd_t *)(gd + 1); /* At end of global data */
187 gd->baudrate = CONFIG_BAUDRATE;
189 gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
192 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
193 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
194 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
195 #if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
196 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
197 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
199 bd->bi_baudrate = CONFIG_BAUDRATE;
201 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
203 if ((*init_fnc_ptr) () != 0)
207 #ifdef CONFIG_WATCHDOG
208 /* disable watchdog if environment is set */
210 char *s = getenv("watchdog");
212 if (strncmp(s, "off", 3) == 0)
215 #endif /* CONFIG_WATCHDOG*/
218 #if defined(CONFIG_CMD_NET)
222 eth_initialize(gd->bd);
224 s = getenv("bootfile");
226 copy_filename(BootFile, s, sizeof(BootFile));
228 #endif /* CONFIG_CMD_NET */
236 /***********************************************************************/
240 puts("Board ERROR\n");