diff options
Diffstat (limited to 'lib_microblaze/board.c')
| -rw-r--r-- | lib_microblaze/board.c | 95 |
1 files changed, 81 insertions, 14 deletions
diff --git a/lib_microblaze/board.c b/lib_microblaze/board.c index 026d247..273d9c4 100644 --- a/lib_microblaze/board.c +++ b/lib_microblaze/board.c @@ -1,6 +1,8 @@ /* + * (C) Copyright 2007 Michal Simek * (C) Copyright 2004 Atmark Techno, Inc. * + * Michal SIMEK <monstr@monstr.eu> * Yasushi SHOJI <yashi@atmark-techno.com> * * See file CREDITS for list of people who contributed to this @@ -13,7 +15,7 @@ * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License @@ -30,8 +32,18 @@ DECLARE_GLOBAL_DATA_PTR; -const char version_string[] = - U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")"; +const char version_string[] = U_BOOT_VERSION " (" __DATE__ " - " __TIME__ ")"; + +#ifdef CFG_GPIO_0 +extern int gpio_init (void); +#endif +#ifdef CFG_INTC_0 +extern int interrupts_init (void); +#endif +#if (CONFIG_COMMANDS & CFG_CMD_NET) +extern int eth_init (bd_t * bis); +extern int getenv_IPaddr (char *); +#endif /* * Begin and End of memory area for malloc(), and current "brk" @@ -40,6 +52,18 @@ static ulong mem_malloc_start; static ulong mem_malloc_end; static ulong mem_malloc_brk; +/* + * The Malloc area is immediately below the monitor copy in DRAM + * aka CFG_MONITOR_BASE - Note there is no need for reloc_off + * as our monitory code is run from SDRAM + */ +static void mem_malloc_init (void) +{ + mem_malloc_end = CFG_MONITOR_BASE + CFG_MONITOR_LEN; + mem_malloc_start = CFG_MONITOR_BASE; + mem_malloc_brk = mem_malloc_start; + memset ((void *)mem_malloc_start, 0, mem_malloc_end - mem_malloc_start); +} void *sbrk (ptrdiff_t increment) { @@ -50,7 +74,7 @@ void *sbrk (ptrdiff_t increment) return (NULL); } mem_malloc_brk = new; - return ((void *) old); + return ((void *)old); } /* @@ -68,24 +92,36 @@ void *sbrk (ptrdiff_t increment) typedef int (init_fnc_t) (void); init_fnc_t *init_sequence[] = { - serial_init, /* serial communications setup */ + env_init, + serial_init, +#ifdef CFG_GPIO_0 + gpio_init, +#endif +#ifdef CFG_INTC_0 + interrupts_init, +#endif NULL, }; -void board_init(void) +void board_init (void) { bd_t *bd; init_fnc_t **init_fnc_ptr; - - /* Pointer is writable since we allocated a register for it. */ - gd = (gd_t *)CFG_GBL_DATA_OFFSET; - memset((void *)gd, 0, CFG_GBL_DATA_SIZE); - - gd->bd = (bd_t *)(gd+1); /* At end of global data */ + gd = (gd_t *) CFG_GBL_DATA_OFFSET; +#if (CONFIG_COMMANDS & CFG_CMD_FLASH) + ulong flash_size = 0; +#endif + asm ("nop"); /* FIXME gd is not initialize - wait */ + memset ((void *)gd, 0, CFG_GBL_DATA_SIZE); + gd->bd = (bd_t *) (gd + 1); /* At end of global data */ gd->baudrate = CONFIG_BAUDRATE; - bd = gd->bd; bd->bi_baudrate = CONFIG_BAUDRATE; + bd->bi_memstart = CFG_SDRAM_BASE; + bd->bi_memsize = CFG_SDRAM_SIZE; + + /* Initialise malloc() area */ + mem_malloc_init (); for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { WATCHDOG_RESET (); @@ -94,6 +130,37 @@ void board_init(void) } } +#if (CONFIG_COMMANDS & CFG_CMD_FLASH) + bd->bi_flashstart = CFG_FLASH_BASE; + if (0 < (flash_size = flash_init ())) { + bd->bi_flashsize = flash_size; + bd->bi_flashoffset = CFG_FLASH_BASE + flash_size; + } else { + puts ("Flash init FAILED"); + bd->bi_flashstart = 0; + bd->bi_flashsize = 0; + bd->bi_flashoffset = 0; + } +#endif + +#if (CONFIG_COMMANDS & CFG_CMD_NET) + char *s, *e; + int i; + /* board MAC address */ + s = getenv ("ethaddr"); + for (i = 0; i < 6; ++i) { + bd->bi_enetaddr[i] = s ? simple_strtoul (s, &e, 16) : 0; + if (s) + s = (*e) ? e + 1 : e; + } + /* IP Address */ + bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); + eth_init (bd); +#endif + + /* relocate environment function pointers etc. */ + env_relocate (); + /* main_loop */ for (;;) { WATCHDOG_RESET (); @@ -104,5 +171,5 @@ void board_init(void) void hang (void) { puts ("### ERROR ### Please RESET the board ###\n"); - for (;;); + for (;;) ; } |