mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![Peter Tyser](/assets/img/avatar_default.png)
Use the GNU 'date' command to auto-generate a new U-Boot timestamp on every compile. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
244 lines
5.5 KiB
C
244 lines
5.5 KiB
C
/*
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* Copyright (C) 2007,2008
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* Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <devices.h>
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#include <timestamp.h>
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#include <version.h>
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#include <watchdog.h>
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#include <net.h>
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#include <environment.h>
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extern void malloc_bin_reloc (void);
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extern int cpu_init(void);
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extern int board_init(void);
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extern int dram_init(void);
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extern int timer_init(void);
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const char version_string[] = U_BOOT_VERSION" ("U_BOOT_DATE" - "U_BOOT_TIME")";
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unsigned long monitor_flash_len = CONFIG_SYS_MONITOR_LEN;
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static unsigned long mem_malloc_start;
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static unsigned long mem_malloc_end;
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static unsigned long mem_malloc_brk;
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static void mem_malloc_init(void)
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{
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mem_malloc_start = (TEXT_BASE - CONFIG_SYS_GBL_DATA_SIZE - CONFIG_SYS_MALLOC_LEN);
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mem_malloc_end = (mem_malloc_start + CONFIG_SYS_MALLOC_LEN - 16);
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mem_malloc_brk = mem_malloc_start;
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memset((void *) mem_malloc_start, 0,
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(mem_malloc_end - mem_malloc_start));
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}
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void *sbrk(ptrdiff_t increment)
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{
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unsigned long old = mem_malloc_brk;
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unsigned long new = old + increment;
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if ((new < mem_malloc_start) ||
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(new > mem_malloc_end)) {
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return NULL;
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}
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mem_malloc_brk = new;
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return (void *) old;
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}
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static int sh_flash_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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gd->bd->bi_flashsize = flash_init();
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printf("FLASH: %ldMB\n", gd->bd->bi_flashsize / (1024*1024));
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return 0;
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}
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#if defined(CONFIG_CMD_NAND)
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# include <nand.h>
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# define INIT_FUNC_NAND_INIT nand_init,
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#else
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# define INIT_FUNC_NAND_INIT
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#endif /* CONFIG_CMD_NAND */
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#if defined(CONFIG_WATCHDOG)
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extern int watchdog_init(void);
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extern int watchdog_disable(void);
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# define INIT_FUNC_WATCHDOG_INIT watchdog_init,
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# define WATCHDOG_DISABLE watchdog_disable
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#else
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# define INIT_FUNC_WATCHDOG_INIT
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# define WATCHDOG_DISABLE
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#endif /* CONFIG_WATCHDOG */
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#if defined(CONFIG_CMD_IDE)
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# include <ide.h>
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# define INIT_FUNC_IDE_INIT ide_init,
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#else
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# define INIT_FUNC_IDE_INIT
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#endif /* CONFIG_CMD_IDE */
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#if defined(CONFIG_PCI)
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#include <pci.h>
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static int sh_pci_init(void)
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{
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pci_init();
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return 0;
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}
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# define INIT_FUNC_PCI_INIT sh_pci_init,
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#else
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# define INIT_FUNC_PCI_INIT
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#endif /* CONFIG_PCI */
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static int sh_mem_env_init(void)
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{
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mem_malloc_init();
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malloc_bin_reloc();
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env_relocate();
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jumptable_init();
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return 0;
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}
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#if defined(CONFIG_CMD_NET)
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static int sh_net_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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char *s, *e;
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int i;
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gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr");
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s = getenv("ethaddr");
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for (i = 0; i < 6; ++i) {
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gd->bd->bi_enetaddr[i] = s ? simple_strtoul(s, &e, 16) : 0;
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if (s)
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s = (*e) ? e + 1 : e;
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}
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return 0;
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}
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#endif
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typedef int (init_fnc_t) (void);
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init_fnc_t *init_sequence[] =
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{
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cpu_init, /* basic cpu dependent setup */
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board_init, /* basic board dependent setup */
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interrupt_init, /* set up exceptions */
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env_init, /* event init */
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serial_init, /* SCIF init */
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INIT_FUNC_WATCHDOG_INIT /* watchdog init */
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console_init_f,
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display_options,
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checkcpu,
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checkboard, /* Check support board */
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dram_init, /* SDRAM init */
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timer_init, /* SuperH Timer (TCNT0 only) init */
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sh_flash_init, /* Flash memory(NOR) init*/
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sh_mem_env_init,
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INIT_FUNC_NAND_INIT/* Flash memory (NAND) init */
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INIT_FUNC_PCI_INIT /* PCI init */
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devices_init,
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console_init_r,
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interrupt_init,
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#ifdef BOARD_LATE_INIT
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board_late_init,
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#endif
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#if defined(CONFIG_CMD_NET)
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sh_net_init, /* SH specific eth init */
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#endif
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NULL /* Terminate this list */
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};
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void sh_generic_init(void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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bd_t *bd;
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init_fnc_t **init_fnc_ptr;
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memset(gd, 0, CONFIG_SYS_GBL_DATA_SIZE);
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gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
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gd->bd = (bd_t *)(gd + 1); /* At end of global data */
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gd->baudrate = CONFIG_BAUDRATE;
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gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
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bd = gd->bd;
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bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
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bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
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bd->bi_flashstart = CONFIG_SYS_FLASH_BASE;
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#if defined(CONFIG_SYS_SRAM_BASE) && defined(CONFIG_SYS_SRAM_SIZE)
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bd->bi_sramstart = CONFIG_SYS_SRAM_BASE;
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bd->bi_sramsize = CONFIG_SYS_SRAM_SIZE;
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#endif
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bd->bi_baudrate = CONFIG_BAUDRATE;
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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WATCHDOG_RESET();
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if ((*init_fnc_ptr) () != 0)
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hang();
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}
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#ifdef CONFIG_WATCHDOG
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/* disable watchdog if environment is set */
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{
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char *s = getenv("watchdog");
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if (s != NULL)
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if (strncmp(s, "off", 3) == 0)
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WATCHDOG_DISABLE();
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}
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#endif /* CONFIG_WATCHDOG*/
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#if defined(CONFIG_CMD_NET)
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{
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char *s;
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puts("Net: ");
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eth_initialize(gd->bd);
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s = getenv("bootfile");
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if (s != NULL)
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copy_filename(BootFile, s, sizeof(BootFile));
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}
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#endif /* CONFIG_CMD_NET */
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while (1) {
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WATCHDOG_RESET();
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main_loop();
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}
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}
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/***********************************************************************/
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void hang(void)
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{
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puts("Board ERROR\n");
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for (;;)
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;
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}
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