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Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +09001/*
Yusuke Goda1a2334a2008-03-05 14:30:02 +09002 * Copyright (C) 2007,2008
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +09003 * 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>
Peter Tyser561858e2008-11-03 09:30:59 -060025#include <timestamp.h>
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090026#include <version.h>
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090027#include <watchdog.h>
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090028#include <net.h>
29#include <environment.h>
30
31extern void malloc_bin_reloc (void);
32extern int cpu_init(void);
33extern int board_init(void);
34extern int dram_init(void);
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090035extern int timer_init(void);
36
Peter Tyser561858e2008-11-03 09:30:59 -060037const char version_string[] = U_BOOT_VERSION" ("U_BOOT_DATE" - "U_BOOT_TIME")";
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090038
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020039unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090040
41static unsigned long mem_malloc_start;
42static unsigned long mem_malloc_end;
43static unsigned long mem_malloc_brk;
44
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090045static void mem_malloc_init(void)
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090046{
47
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020048 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);
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090050 mem_malloc_brk = mem_malloc_start;
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090051 memset((void *) mem_malloc_start, 0,
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090052 (mem_malloc_end - mem_malloc_start));
53}
54
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090055void *sbrk(ptrdiff_t increment)
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +090056{
57 unsigned long old = mem_malloc_brk;
58 unsigned long new = old + increment;
59
60 if ((new < mem_malloc_start) ||
61 (new > mem_malloc_end)) {
62 return NULL;
63 }
64
65 mem_malloc_brk = new;
66 return (void *) old;
67}
68
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +090069static int sh_flash_init(void)
70{
71 DECLARE_GLOBAL_DATA_PTR;
72
73 gd->bd->bi_flashsize = flash_init();
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090074 printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024));
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +090075
76 return 0;
77}
78
79#if defined(CONFIG_CMD_NAND)
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090080# include <nand.h>
81# define INIT_FUNC_NAND_INIT nand_init,
82#else
83# define INIT_FUNC_NAND_INIT
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +090084#endif /* CONFIG_CMD_NAND */
85
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090086#if defined(CONFIG_WATCHDOG)
87extern int watchdog_init(void);
88extern int watchdog_disable(void);
89# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
90# define WATCHDOG_DISABLE watchdog_disable
91#else
92# define INIT_FUNC_WATCHDOG_INIT
93# define WATCHDOG_DISABLE
94#endif /* CONFIG_WATCHDOG */
95
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +090096#if defined(CONFIG_CMD_IDE)
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +090097# include <ide.h>
98# define INIT_FUNC_IDE_INIT ide_init,
99#else
100# define INIT_FUNC_IDE_INIT
101#endif /* CONFIG_CMD_IDE */
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900102
Yusuke Goda1a2334a2008-03-05 14:30:02 +0900103#if defined(CONFIG_PCI)
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900104#include <pci.h>
Yusuke Goda1a2334a2008-03-05 14:30:02 +0900105static int sh_pci_init(void)
106{
107 pci_init();
108 return 0;
109}
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900110# define INIT_FUNC_PCI_INIT sh_pci_init,
111#else
112# define INIT_FUNC_PCI_INIT
Yusuke Goda1a2334a2008-03-05 14:30:02 +0900113#endif /* CONFIG_PCI */
114
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900115static int sh_mem_env_init(void)
116{
117 mem_malloc_init();
118 malloc_bin_reloc();
119 env_relocate();
120 jumptable_init();
121 return 0;
122}
123
Nobuhiro Iwamatsu9e23fe02008-07-08 12:03:24 +0900124#if defined(CONFIG_CMD_NET)
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900125static int sh_net_init(void)
126{
127 DECLARE_GLOBAL_DATA_PTR;
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900128 gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900129 return 0;
130}
Nobuhiro Iwamatsu9e23fe02008-07-08 12:03:24 +0900131#endif
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900132
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900133typedef int (init_fnc_t) (void);
134
135init_fnc_t *init_sequence[] =
136{
137 cpu_init, /* basic cpu dependent setup */
138 board_init, /* basic board dependent setup */
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900139 interrupt_init, /* set up exceptions */
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900140 env_init, /* event init */
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900141 serial_init, /* SCIF init */
142 INIT_FUNC_WATCHDOG_INIT /* watchdog init */
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900143 console_init_f,
144 display_options,
145 checkcpu,
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900146 checkboard, /* Check support board */
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900147 dram_init, /* SDRAM init */
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900148 timer_init, /* SuperH Timer (TCNT0 only) init */
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900149 sh_mem_env_init,
Stefan Roesec790b042009-05-11 15:50:12 +0200150 sh_flash_init, /* Flash memory(NOR) init*/
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900151 INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */
152 INIT_FUNC_PCI_INIT /* PCI init */
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900153 devices_init,
154 console_init_r,
155 interrupt_init,
156#ifdef BOARD_LATE_INIT
157 board_late_init,
158#endif
159#if defined(CONFIG_CMD_NET)
160 sh_net_init, /* SH specific eth init */
161#endif
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900162 NULL /* Terminate this list */
163};
164
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900165void sh_generic_init(void)
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900166{
167 DECLARE_GLOBAL_DATA_PTR;
168
169 bd_t *bd;
170 init_fnc_t **init_fnc_ptr;
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900171
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200172 memset(gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900173
174 gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
175
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900176 gd->bd = (bd_t *)(gd + 1); /* At end of global data */
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900177 gd->baudrate = CONFIG_BAUDRATE;
178
179 gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
180
181 bd = gd->bd;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200182 bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
183 bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
184 bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
185#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
186 bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
187 bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900188#endif
189 bd->bi_baudrate = CONFIG_BAUDRATE;
190
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900191 for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
192 WATCHDOG_RESET();
193 if ((*init_fnc_ptr) () != 0)
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900194 hang();
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900195 }
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900196
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900197#ifdef CONFIG_WATCHDOG
198 /* disable watchdog if environment is set */
199 {
200 char *s = getenv("watchdog");
201 if (s != NULL)
202 if (strncmp(s, "off", 3) == 0)
203 WATCHDOG_DISABLE();
204 }
205#endif /* CONFIG_WATCHDOG*/
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900206
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900207
208#if defined(CONFIG_CMD_NET)
209 {
210 char *s;
211 puts("Net: ");
212 eth_initialize(gd->bd);
213
214 s = getenv("bootfile");
215 if (s != NULL)
216 copy_filename(BootFile, s, sizeof(BootFile));
Nobuhiro Iwamatsub02bad12007-09-23 02:12:30 +0900217 }
218#endif /* CONFIG_CMD_NET */
219
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900220 while (1) {
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900221 WATCHDOG_RESET();
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900222 main_loop();
223 }
224}
225
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900226/***********************************************************************/
227
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900228void hang(void)
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900229{
Nobuhiro Iwamatsu4a065ab2008-09-18 19:04:26 +0900230 puts("Board ERROR\n");
231 for (;;)
232 ;
Nobuhiro Iwamatsu0b135cf2007-05-13 20:58:00 +0900233}