diff options
Diffstat (limited to 'arch/i386/lib')
| -rw-r--r-- | arch/i386/lib/board.c | 42 | 
1 files changed, 7 insertions, 35 deletions
| diff --git a/arch/i386/lib/board.c b/arch/i386/lib/board.c index 5002203ec80..00976a5d49c 100644 --- a/arch/i386/lib/board.c +++ b/arch/i386/lib/board.c @@ -54,8 +54,6 @@ extern ulong _i386boot_rel_dyn_end;  extern ulong _i386boot_bss_start;  extern ulong _i386boot_bss_size; -void ram_bootstrap (void *, ulong); -  const char version_string[] =  	U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"; @@ -164,13 +162,12 @@ init_fnc_t *init_sequence[] = {  	NULL,  }; -static gd_t gd_data;  gd_t *gd;  /*   * Load U-Boot into RAM, initialize BSS, perform relocation adjustments   */ -void board_init_f (ulong stack_limit) +void board_init_f (ulong gdp)  {  	void *text_start = &_i386boot_text_start;  	void *u_boot_cmd_end = &__u_boot_cmd_end; @@ -184,12 +181,9 @@ void board_init_f (ulong stack_limit)  	ulong rel_offset;  	Elf32_Rel *re; -	void (*start_func)(void *, ulong); -  	uboot_size = (ulong)u_boot_cmd_end - (ulong)text_start; -	dest_addr  = (void *)stack_limit - (uboot_size + (ulong)bss_size); +	dest_addr  = (void *)gdp - (uboot_size + (ulong)bss_size);  	rel_offset = text_start - dest_addr; -	start_func = ram_bootstrap - rel_offset;  	/* First stage CPU initialization */  	if (cpu_init_f() != 0) @@ -213,38 +207,16 @@ void board_init_f (ulong stack_limit)  				*(ulong *)(re->r_offset - rel_offset) -= (Elf32_Addr)rel_offset;  	} +	((gd_t *)gdp)->reloc_off = rel_offset; +	((gd_t *)gdp)->flags |= GD_FLG_RELOC; +  	/* Enter the relocated U-Boot! */ -	start_func(dest_addr, rel_offset); +	(board_init_r - rel_offset)((gd_t *)gdp, (ulong)dest_addr); +  	/* NOTREACHED - board_init_f() does not return */  	while(1);  } -/* - * We cannot initialize gd_data in board_init_f() because we would be - * attempting to write to flash (I have even tried using manual relocation - * adjustments on pointers but it just won't work) and board_init_r() does - * not have enough arguments to allow us to pass the relocation offset - * straight up. This bootstrap function (which runs in RAM) is used to - * setup gd_data in order to pass the relocation offset to the rest of - * U-Boot. - * - * TODO: The compiler optimization barrier is intended to stop GCC from - * optimizing this function into board_init_f(). It seems to work without - * it, but I've left it in to be sure. I think also that the barrier in - * board_init_r() is no longer needed, but left it in 'just in case' - */ -void ram_bootstrap (void *dest_addr, ulong rel_offset) -{ -	/* compiler optimization barrier needed for GCC >= 3.4 */ -	__asm__ __volatile__("": : :"memory"); - -	/* tell others: relocation done */ -	gd_data.reloc_off = rel_offset; -	gd_data.flags |= GD_FLG_RELOC; - -	board_init_r(&gd_data, (ulong)dest_addr); -} -  void board_init_r(gd_t *id, ulong dest_addr)  {  	char *s; | 
