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,
27 #include <environment.h>
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);
36 const char version_string
[] = U_BOOT_VERSION
" (" __DATE__
" - " __TIME__
")";
38 unsigned long monitor_flash_len
= CFG_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
- 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
;
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: %dMB\n", gd
->bd
->bi_flashsize
/ (1024*1024));
78 #if defined(CONFIG_CMD_NAND)
79 void nand_init (void);
80 static int sh_nand_init(void)
83 nand_init(); /* go init the NAND */
86 #endif /* CONFIG_CMD_NAND */
88 #if defined(CONFIG_CMD_IDE)
90 static int sh_marubun_init(void)
96 #endif /* (CONFIG_CMD_IDE) */
98 #if defined(CONFIG_PCI)
99 static int sh_pci_init(void)
104 #endif /* CONFIG_PCI */
106 static int sh_mem_env_init(void)
115 static int sh_net_init(void)
117 DECLARE_GLOBAL_DATA_PTR
;
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
;
131 typedef int (init_fnc_t
) (void);
133 init_fnc_t
*init_sequence
[] =
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 */
140 watchdog_init
, /* watchdog init */
144 checkboard
, /* Check support board */
145 dram_init
, /* SDRAM init */
146 timer_init
, /* SuperH Timer (TCNT0 only) init */
147 sh_flash_init
, /* Flash memory(NOR) init*/
149 #if defined(CONFIG_CMD_NAND)
150 sh_nand_init
, /* Flash memory (NAND) init */
152 #if defined(CONFIG_PCI)
153 sh_pci_init
, /* PCI Init */
158 #ifdef BOARD_LATE_INIT
161 #if defined(CONFIG_CMD_NET)
162 sh_net_init
, /* SH specific eth init */
164 NULL
/* Terminate this list */
167 void sh_generic_init (void)
169 DECLARE_GLOBAL_DATA_PTR
;
172 init_fnc_t
**init_fnc_ptr
;
176 memset (gd
, 0, CFG_GBL_DATA_SIZE
);
178 gd
->flags
|= GD_FLG_RELOC
; /* tell others: relocation done */
180 gd
->bd
= (bd_t
*) (gd
+ 1); /* At end of global data */
181 gd
->baudrate
= CONFIG_BAUDRATE
;
183 gd
->cpu_clk
= CONFIG_SYS_CLK_FREQ
;
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
;
193 bd
->bi_baudrate
= CONFIG_BAUDRATE
;
195 for (init_fnc_ptr
= init_sequence
; *init_fnc_ptr
; ++init_fnc_ptr
, i
++) {
196 if ((*init_fnc_ptr
) () != 0) {
201 #if defined(CONFIG_CMD_NET)
203 eth_initialize(gd
->bd
);
205 if ((s
= getenv ("bootfile")) != NULL
) {
206 copy_filename (BootFile
, s
, sizeof (BootFile
));
208 #endif /* CONFIG_CMD_NET */
215 /***********************************************************************/
219 puts ("Board ERROR\n");