/*
* (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
+ * Daniel Engstr�m, Omicron Ceti AB, daniel@omicron.se
+ *
* (C) Copyright 2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
+ *
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
#include <common.h>
#include <watchdog.h>
#include <command.h>
-#include <devices.h>
+#include <stdio_dev.h>
+#include <timestamp.h>
#include <version.h>
#include <malloc.h>
-#include <syscall.h>
#include <net.h>
#include <ide.h>
+#include <asm/u-boot-i386.h>
-extern long _i386boot_start;
-extern long _i386boot_end;
-extern long _i386boot_romdata_start;
-extern long _i386boot_romdata_dest;
-extern long _i386boot_romdata_size;
-extern long _i386boot_bss_start;
-extern long _i386boot_bss_size;
+#ifdef CONFIG_BITBANGMII
+#include <miiphy.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
-extern long _i386boot_realmode;
-extern long _i386boot_realmode_size;
-extern long _i386boot_bios;
-extern long _i386boot_bios_size;
+extern long _i386boot_start;
+extern long _i386boot_end;
+extern long _i386boot_romdata_start;
+extern long _i386boot_romdata_dest;
+extern long _i386boot_romdata_size;
+extern long _i386boot_bss_start;
+extern long _i386boot_bss_size;
/* The symbols defined by the linker script becomes pointers
* which is somewhat inconveient ... */
ulong i386boot_bss_start = (ulong)&_i386boot_bss_start; /* bss start */
ulong i386boot_bss_size = (ulong)&_i386boot_bss_size; /* bss size */
-ulong i386boot_realmode = (ulong)&_i386boot_realmode; /* start of realmode entry code */
-ulong i386boot_realmode_size = (ulong)&_i386boot_realmode_size; /* size of realmode entry code */
-ulong i386boot_bios = (ulong)&_i386boot_bios; /* start of BIOS emulation code */
-ulong i386boot_bios_size = (ulong)&_i386boot_bios_size; /* size of BIOS emulation code */
-
-
const char version_string[] =
- U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
+ U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")";
-
-/*
- * Begin and End of memory area for malloc(), and current "brk"
- */
-static ulong mem_malloc_start = 0;
-static ulong mem_malloc_end = 0;
-static ulong mem_malloc_brk = 0;
-
-static int mem_malloc_init(void)
+static int heap_init(void)
{
- DECLARE_GLOBAL_DATA_PTR;
-
-#if 1
/* start malloc area right after the stack */
- mem_malloc_start = i386boot_bss_start +
- i386boot_bss_size + CFG_STACK_SIZE;
- mem_malloc_start = (mem_malloc_start+3)&~3;
-#else
- mem_malloc_start = 0x400000;
-#endif
-#if 1
- /* Use all available RAM for malloc() */
- mem_malloc_end = gd->ram_size;
-#else
- /* Use only CONFIG_MALLOC_SIZE bytes of RAM for malloc() */
- mem_malloc_end = mem_malloc_start + CONFIG_MALLOC_SIZE;
-#endif
- mem_malloc_brk = mem_malloc_start;
+ ulong start = i386boot_bss_start + i386boot_bss_size +
+ CONFIG_SYS_STACK_SIZE;
- return 0;
-}
+ /* 4-byte aligned */
+ start = (start+3)&~3;
-void *sbrk (ptrdiff_t increment)
-{
- ulong old = mem_malloc_brk;
- ulong new = old + increment;
-
- if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
- return (NULL);
- }
- mem_malloc_brk = new;
-
- return ((void *) old);
-}
+ mem_malloc_init(start, CONFIG_SYS_MALLOC_LEN);
-char *strmhz (char *buf, long hz)
-{
- long l, n;
- long m;
-
- n = hz / 1000000L;
- l = sprintf (buf, "%ld", n);
- m = (hz % 1000000L) / 1000L;
- if (m != 0)
- sprintf (buf + l, ".%03ld", m);
- return (buf);
+ return 0;
}
/************************************************************************
* or dropped completely,
* but let's get it working (again) first...
*/
-static void syscalls_init (void)
-{
- syscall_tbl[SYSCALL_MALLOC] = (void *) malloc;
- syscall_tbl[SYSCALL_FREE] = (void *) free;
-
- syscall_tbl[SYSCALL_INSTALL_HDLR] = (void *) irq_install_handler;
- syscall_tbl[SYSCALL_FREE_HDLR] = (void *) irq_free_handler;
-
-}
-
static int init_baudrate (void)
{
- DECLARE_GLOBAL_DATA_PTR;
+ char tmp[64]; /* long enough for environment variables */
+ int i = getenv_r("baudrate", tmp, 64);
- uchar tmp[64]; /* long enough for environment variables */
- int i = getenv_r ("baudrate", tmp, sizeof (tmp));
-
- gd->baudrate = (i > 0)
+ gd->baudrate = (i != 0)
? (int) simple_strtoul (tmp, NULL, 10)
: CONFIG_BAUDRATE;
i386boot_start, i386boot_romdata_start-1,
i386boot_romdata_dest, i386boot_romdata_dest+i386boot_romdata_size-1,
i386boot_bss_start, i386boot_bss_start+i386boot_bss_size-1,
- i386boot_bss_start+i386boot_bss_size,
- i386boot_bss_start+i386boot_bss_size+CFG_STACK_SIZE-1);
-
+ i386boot_bss_start+i386boot_bss_size,
+ i386boot_bss_start+i386boot_bss_size+CONFIG_SYS_STACK_SIZE-1);
+
return (0);
}
*/
static int display_dram_config (void)
{
- DECLARE_GLOBAL_DATA_PTR;
int i;
puts ("DRAM Configuration:\n");
printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start);
print_size (gd->bd->bi_dram[i].size, "\n");
}
-
+
return (0);
}
}
-
/*
* Breath some life into the board...
*
cpu_init, /* basic cpu dependent setup */
board_init, /* basic board dependent setup */
dram_init, /* configure available RAM banks */
- mem_malloc_init, /* dependant on dram_init */
+ heap_init, /* dependant on dram_init */
interrupt_init, /* set up exceptions */
- timer_init,
+ timer_init,
+ serial_init,
env_init, /* initialize environment */
init_baudrate, /* initialze baudrate settings */
serial_init, /* serial communications setup */
NULL,
};
-gd_t *global_data;
+gd_t *gd;
void start_i386boot (void)
{
- DECLARE_GLOBAL_DATA_PTR;
char *s;
int i;
ulong size;
static gd_t gd_data;
static bd_t bd_data;
init_fnc_t **init_fnc_ptr;
-
+
+#ifndef CONFIG_SKIP_RELOCATE_UBOOT
+ cmd_tbl_t *p;
+#endif
show_boot_progress(0x21);
- gd = global_data = &gd_data;
-
+ gd = &gd_data;
+ /* compiler optimization barrier needed for GCC >= 3.4 */
+ __asm__ __volatile__("": : :"memory");
+
memset (gd, 0, sizeof (gd_t));
gd->bd = &bd_data;
memset (gd->bd, 0, sizeof (bd_t));
show_boot_progress(0x22);
-
+ gd->baudrate = CONFIG_BAUDRATE;
+
+#ifndef CONFIG_SKIP_RELOCATE_UBOOT
+ /* Need to set relocation offset here for interrupt initialization */
+ gd->reloc_off = CONFIG_SYS_BL_START_RAM - TEXT_BASE;
+#endif
for (init_fnc_ptr = init_sequence, i=0; *init_fnc_ptr; ++init_fnc_ptr, i++) {
show_boot_progress(0xa130|i);
}
show_boot_progress(0x23);
+#ifndef CONFIG_SKIP_RELOCATE_UBOOT
+ for (p = &__u_boot_cmd_start; p != &__u_boot_cmd_end; p++) {
+ ulong addr;
+ addr = (ulong) (p->cmd) + gd->reloc_off;
+ p->cmd = (int (*)(struct cmd_tbl_s *, int, int, char *[]))addr;
+ addr = (ulong)(p->name) + gd->reloc_off;
+ p->name = (char *)addr;
+
+ if (p->usage != NULL) {
+ addr = (ulong)(p->usage) + gd->reloc_off;
+ p->usage = (char *)addr;
+ }
+ #ifdef CONFIG_SYS_LONGHELP
+ if (p->help != NULL) {
+ addr = (ulong)(p->help) + gd->reloc_off;
+ p->help = (char *)addr;
+ }
+ #endif
+ }
+#endif
/* configure available FLASH banks */
size = flash_init();
display_flash_config(size);
/* IP Address */
bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr");
- /* MAC Address */
- {
- int i;
- ulong reg;
- char *s, *e;
- uchar tmp[64];
-
- i = getenv_r ("ethaddr", tmp, sizeof (tmp));
- s = (i > 0) ? tmp : NULL;
-
- for (reg = 0; reg < 6; ++reg) {
- bd_data.bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0;
- if (s)
- s = (*e) ? e + 1 : e;
- }
- }
-
#if defined(CONFIG_PCI)
/*
* Do pci configuration
show_boot_progress(0x27);
- devices_init ();
+ stdio_init ();
- /* allocate syscalls table (console_init_r will fill it in */
- syscall_tbl = (void **) malloc (NR_SYSCALLS * sizeof (void *));
+ jumptable_init ();
/* Initialize the console (after the relocation and devices init) */
console_init_r();
- syscalls_init();
#ifdef CONFIG_MISC_INIT_R
/* miscellaneous platform dependent initialisations */
misc_init_r();
#endif
-
-#if (CONFIG_COMMANDS & CFG_CMD_NET) && (0)
- WATCHDOG_RESET();
-# ifdef DEBUG
- puts ("Reset Ethernet PHY\n");
-# endif
- reset_phy();
-#endif
-
-#if (CONFIG_COMMANDS & CFG_CMD_PCMCIA) && !(CONFIG_COMMANDS & CFG_CMD_IDE)
+#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
puts ("PCMCIA:");
pcmcia_init();
#endif
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
WATCHDOG_RESET();
puts("KGDB: ");
kgdb_init();
#endif
/* enable exceptions */
- enable_interrupts ();
+ enable_interrupts();
show_boot_progress(0x28);
/* Must happen after interrupts are initialized since
#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
serial_buffered_init();
#endif
-
+
#ifdef CONFIG_STATUS_LED
status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING);
#endif
- udelay (20);
+ udelay(20);
set_timer (0);
if ((s = getenv ("loadaddr")) != NULL) {
load_addr = simple_strtoul (s, NULL, 16);
}
-#if (CONFIG_COMMANDS & CFG_CMD_NET)
+#if defined(CONFIG_CMD_NET)
if ((s = getenv ("bootfile")) != NULL) {
copy_filename (BootFile, s, sizeof (BootFile));
}
-#endif /* CFG_CMD_NET */
+#endif
WATCHDOG_RESET();
-#if (CONFIG_COMMANDS & CFG_CMD_IDE)
+#if defined(CONFIG_CMD_IDE)
WATCHDOG_RESET();
puts("IDE: ");
ide_init();
-#endif /* CFG_CMD_IDE */
+#endif
-#if (CONFIG_COMMANDS & CFG_CMD_SCSI)
+#if defined(CONFIG_CMD_SCSI)
WATCHDOG_RESET();
puts("SCSI: ");
scsi_init();
#endif
-#if (CONFIG_COMMANDS & CFG_CMD_DOC)
+#if defined(CONFIG_CMD_DOC)
WATCHDOG_RESET();
- puts ("DOC: ");
+ puts("DOC: ");
doc_init();
#endif
-#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
+#ifdef CONFIG_BITBANGMII
+ bb_miiphy_init();
+#endif
+#if defined(CONFIG_CMD_NET)
+#if defined(CONFIG_NET_MULTI)
WATCHDOG_RESET();
puts("Net: ");
+#endif
eth_initialize(gd->bd);
#endif
+#if ( defined(CONFIG_CMD_NET)) && (0)
+ WATCHDOG_RESET();
+# ifdef DEBUG
+ puts ("Reset Ethernet PHY\n");
+# endif
+ reset_phy();
+#endif
+
#ifdef CONFIG_LAST_STAGE_INIT
WATCHDOG_RESET();
/*
#endif
-
#ifdef CONFIG_POST
post_run (NULL, POST_RAM | post_bootmode_get(0));
- if (post_bootmode_get(0) & POST_POWERFAIL) {
- post_bootmode_clear();
- board_poweroff();
- }
#endif
+
show_boot_progress(0x29);
-
+
/* main_loop() can return to retry autoboot, if so just run it again. */
for (;;) {
- main_loop ();
+ main_loop();
}
/* NOTREACHED - no way out of command loop except booting */
for (;;);
}
-
+unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[])
+{
+ /*
+ * TODO: Test this function - changed to fix compiler error.
+ * Original code was:
+ * return (entry >> 1) (argc, argv);
+ * with a comment about Nios function pointers are address >> 1
+ */
+ return (entry) (argc, argv);
+}
projects / u-boot / blobdiff